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/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tk_base/tkrectoval.c,v 1.1.1.1 2001/06/13 05:07:29 dtashley Exp $ */ |
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/* |
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* tkRectOval.c -- |
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* |
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* This file implements rectangle and oval items for canvas |
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* widgets. |
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* |
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* Copyright (c) 1991-1994 The Regents of the University of California. |
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* Copyright (c) 1994-1997 Sun Microsystems, Inc. |
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* |
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* See the file "license.terms" for information on usage and redistribution |
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* of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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* |
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* RCS: @(#) $Id: tkrectoval.c,v 1.1.1.1 2001/06/13 05:07:29 dtashley Exp $ |
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*/ |
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#include <stdio.h> |
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#include "tk.h" |
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#include "tkInt.h" |
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#include "tkPort.h" |
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#include "tkCanvas.h" |
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/* |
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* The structure below defines the record for each rectangle/oval item. |
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*/ |
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typedef struct RectOvalItem { |
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Tk_Item header; /* Generic stuff that's the same for all |
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* types. MUST BE FIRST IN STRUCTURE. */ |
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Tk_Outline outline; /* Outline structure */ |
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double bbox[4]; /* Coordinates of bounding box for rectangle |
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* or oval (x1, y1, x2, y2). Item includes |
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* x1 and x2 but not y1 and y2. */ |
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Tk_TSOffset tsoffset; |
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XColor *fillColor; /* Color for filling rectangle/oval. */ |
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XColor *activeFillColor; /* Color for filling rectangle/oval if state is active. */ |
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XColor *disabledFillColor; /* Color for filling rectangle/oval if state is disabled. */ |
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Pixmap fillStipple; /* Stipple bitmap for filling item. */ |
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Pixmap activeFillStipple; /* Stipple bitmap for filling item if state is active. */ |
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Pixmap disabledFillStipple; /* Stipple bitmap for filling item if state is disabled. */ |
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GC fillGC; /* Graphics context for filling item. */ |
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} RectOvalItem; |
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/* |
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* Information used for parsing configuration specs: |
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*/ |
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static Tk_CustomOption stateOption = { |
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(Tk_OptionParseProc *) TkStateParseProc, |
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TkStatePrintProc, (ClientData) 2 |
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}; |
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static Tk_CustomOption tagsOption = { |
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(Tk_OptionParseProc *) Tk_CanvasTagsParseProc, |
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Tk_CanvasTagsPrintProc, (ClientData) NULL |
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}; |
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static Tk_CustomOption dashOption = { |
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(Tk_OptionParseProc *) TkCanvasDashParseProc, |
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TkCanvasDashPrintProc, (ClientData) NULL |
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}; |
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static Tk_CustomOption offsetOption = { |
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(Tk_OptionParseProc *) TkOffsetParseProc, |
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TkOffsetPrintProc, (ClientData) TK_OFFSET_RELATIVE |
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}; |
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static Tk_CustomOption pixelOption = { |
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(Tk_OptionParseProc *) TkPixelParseProc, |
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TkPixelPrintProc, (ClientData) NULL |
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}; |
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static Tk_ConfigSpec configSpecs[] = { |
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{TK_CONFIG_CUSTOM, "-activedash", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.activeDash), |
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TK_CONFIG_NULL_OK, &dashOption}, |
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{TK_CONFIG_COLOR, "-activefill", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, activeFillColor), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_COLOR, "-activeoutline", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.activeColor), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_BITMAP, "-activeoutlinestipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.activeStipple), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_BITMAP, "-activestipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, activeFillStipple), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_CUSTOM, "-activewidth", (char *) NULL, (char *) NULL, |
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"0.0", Tk_Offset(RectOvalItem, outline.activeWidth), |
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TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
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{TK_CONFIG_CUSTOM, "-dash", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.dash), |
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TK_CONFIG_NULL_OK, &dashOption}, |
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{TK_CONFIG_PIXELS, "-dashoffset", (char *) NULL, (char *) NULL, |
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"0", Tk_Offset(RectOvalItem, outline.offset), |
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TK_CONFIG_DONT_SET_DEFAULT}, |
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{TK_CONFIG_CUSTOM, "-disableddash", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledDash), |
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TK_CONFIG_NULL_OK, &dashOption}, |
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{TK_CONFIG_COLOR, "-disabledfill", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, disabledFillColor), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_COLOR, "-disabledoutline", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledColor), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_BITMAP, "-disabledoutlinestipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledStipple), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_BITMAP, "-disabledstipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, disabledFillStipple), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_PIXELS, "-disabledwidth", (char *) NULL, (char *) NULL, |
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"0.0", Tk_Offset(RectOvalItem, outline.disabledWidth), |
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TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
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{TK_CONFIG_COLOR, "-fill", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, fillColor), TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_CUSTOM, "-offset", (char *) NULL, (char *) NULL, |
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"0,0", Tk_Offset(RectOvalItem, tsoffset), |
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TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, |
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{TK_CONFIG_COLOR, "-outline", (char *) NULL, (char *) NULL, |
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"black", Tk_Offset(RectOvalItem, outline.color), TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_CUSTOM, "-outlineoffset", (char *) NULL, (char *) NULL, |
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"0,0", Tk_Offset(RectOvalItem, outline.tsoffset), |
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TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, |
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{TK_CONFIG_BITMAP, "-outlinestipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, outline.stipple), |
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TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_CUSTOM, "-state", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(Tk_Item, state),TK_CONFIG_NULL_OK, |
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&stateOption}, |
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{TK_CONFIG_BITMAP, "-stipple", (char *) NULL, (char *) NULL, |
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(char *) NULL, Tk_Offset(RectOvalItem, fillStipple), TK_CONFIG_NULL_OK}, |
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{TK_CONFIG_CUSTOM, "-tags", (char *) NULL, (char *) NULL, |
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(char *) NULL, 0, TK_CONFIG_NULL_OK, &tagsOption}, |
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{TK_CONFIG_CUSTOM, "-width", (char *) NULL, (char *) NULL, |
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"1.0", Tk_Offset(RectOvalItem, outline.width), |
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TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
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{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, |
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(char *) NULL, 0, 0} |
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}; |
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/* |
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* Prototypes for procedures defined in this file: |
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*/ |
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static void ComputeRectOvalBbox _ANSI_ARGS_((Tk_Canvas canvas, |
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RectOvalItem *rectOvalPtr)); |
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static int ConfigureRectOval _ANSI_ARGS_((Tcl_Interp *interp, |
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Tk_Canvas canvas, Tk_Item *itemPtr, int argc, |
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Tcl_Obj *CONST argv[], int flags)); |
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static int CreateRectOval _ANSI_ARGS_((Tcl_Interp *interp, |
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Tk_Canvas canvas, struct Tk_Item *itemPtr, |
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int argc, Tcl_Obj *CONST argv[])); |
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static void DeleteRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, Display *display)); |
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static void DisplayRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, Display *display, Drawable dst, |
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int x, int y, int width, int height)); |
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static int OvalToArea _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double *areaPtr)); |
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static double OvalToPoint _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double *pointPtr)); |
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static int RectOvalCoords _ANSI_ARGS_((Tcl_Interp *interp, |
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Tk_Canvas canvas, Tk_Item *itemPtr, int argc, |
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Tcl_Obj *CONST argv[])); |
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static int RectOvalToPostscript _ANSI_ARGS_((Tcl_Interp *interp, |
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Tk_Canvas canvas, Tk_Item *itemPtr, int prepass)); |
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static int RectToArea _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double *areaPtr)); |
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static double RectToPoint _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double *pointPtr)); |
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static void ScaleRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double originX, double originY, |
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double scaleX, double scaleY)); |
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static void TranslateRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
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Tk_Item *itemPtr, double deltaX, double deltaY)); |
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/* |
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* The structures below defines the rectangle and oval item types |
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* by means of procedures that can be invoked by generic item code. |
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*/ |
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Tk_ItemType tkRectangleType = { |
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"rectangle", /* name */ |
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sizeof(RectOvalItem), /* itemSize */ |
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CreateRectOval, /* createProc */ |
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configSpecs, /* configSpecs */ |
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ConfigureRectOval, /* configureProc */ |
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RectOvalCoords, /* coordProc */ |
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DeleteRectOval, /* deleteProc */ |
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DisplayRectOval, /* displayProc */ |
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TK_CONFIG_OBJS, /* flags */ |
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RectToPoint, /* pointProc */ |
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RectToArea, /* areaProc */ |
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RectOvalToPostscript, /* postscriptProc */ |
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ScaleRectOval, /* scaleProc */ |
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TranslateRectOval, /* translateProc */ |
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(Tk_ItemIndexProc *) NULL, /* indexProc */ |
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(Tk_ItemCursorProc *) NULL, /* icursorProc */ |
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(Tk_ItemSelectionProc *) NULL, /* selectionProc */ |
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(Tk_ItemInsertProc *) NULL, /* insertProc */ |
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(Tk_ItemDCharsProc *) NULL, /* dTextProc */ |
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(Tk_ItemType *) NULL, /* nextPtr */ |
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}; |
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Tk_ItemType tkOvalType = { |
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"oval", /* name */ |
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sizeof(RectOvalItem), /* itemSize */ |
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CreateRectOval, /* createProc */ |
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configSpecs, /* configSpecs */ |
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ConfigureRectOval, /* configureProc */ |
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RectOvalCoords, /* coordProc */ |
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DeleteRectOval, /* deleteProc */ |
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DisplayRectOval, /* displayProc */ |
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TK_CONFIG_OBJS, /* flags */ |
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OvalToPoint, /* pointProc */ |
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OvalToArea, /* areaProc */ |
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RectOvalToPostscript, /* postscriptProc */ |
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ScaleRectOval, /* scaleProc */ |
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TranslateRectOval, /* translateProc */ |
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(Tk_ItemIndexProc *) NULL, /* indexProc */ |
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(Tk_ItemCursorProc *) NULL, /* cursorProc */ |
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(Tk_ItemSelectionProc *) NULL, /* selectionProc */ |
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(Tk_ItemInsertProc *) NULL, /* insertProc */ |
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(Tk_ItemDCharsProc *) NULL, /* dTextProc */ |
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(Tk_ItemType *) NULL, /* nextPtr */ |
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}; |
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/* |
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*-------------------------------------------------------------- |
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* |
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* CreateRectOval -- |
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* |
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* This procedure is invoked to create a new rectangle |
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* or oval item in a canvas. |
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* |
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* Results: |
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* A standard Tcl return value. If an error occurred in |
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* creating the item, then an error message is left in |
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* the interp's result; in this case itemPtr is left uninitialized, |
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* so it can be safely freed by the caller. |
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* |
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* Side effects: |
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* A new rectangle or oval item is created. |
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* |
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*-------------------------------------------------------------- |
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*/ |
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static int |
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CreateRectOval(interp, canvas, itemPtr, argc, argv) |
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Tcl_Interp *interp; /* For error reporting. */ |
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Tk_Canvas canvas; /* Canvas to hold new item. */ |
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Tk_Item *itemPtr; /* Record to hold new item; header |
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* has been initialized by caller. */ |
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int argc; /* Number of arguments in argv. */ |
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Tcl_Obj *CONST argv[]; /* Arguments describing rectangle. */ |
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{ |
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RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
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int i; |
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if (argc==1) { |
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i = 1; |
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} else { |
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char *arg = Tcl_GetStringFromObj(argv[1], NULL); |
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if ((argc>1) && (arg[0] == '-') |
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&& (arg[1] >= 'a') && (arg[1] <= 'z')) { |
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i = 1; |
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} else { |
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i = 4; |
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} |
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} |
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if (argc < i) { |
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Tcl_AppendResult(interp, "wrong # args: should be \"", |
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Tk_PathName(Tk_CanvasTkwin(canvas)), " create ", |
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itemPtr->typePtr->name, " x1 y1 x2 y2 ?options?\"", |
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(char *) NULL); |
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return TCL_ERROR; |
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} |
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/* |
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* Carry out initialization that is needed in order to clean |
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* up after errors during the the remainder of this procedure. |
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*/ |
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Tk_CreateOutline(&(rectOvalPtr->outline)); |
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rectOvalPtr->tsoffset.flags = 0; |
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rectOvalPtr->tsoffset.xoffset = 0; |
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rectOvalPtr->tsoffset.yoffset = 0; |
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rectOvalPtr->fillColor = NULL; |
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rectOvalPtr->activeFillColor = NULL; |
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rectOvalPtr->disabledFillColor = NULL; |
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rectOvalPtr->fillStipple = None; |
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rectOvalPtr->activeFillStipple = None; |
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rectOvalPtr->disabledFillStipple = None; |
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rectOvalPtr->fillGC = None; |
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/* |
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* Process the arguments to fill in the item record. |
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*/ |
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if ((RectOvalCoords(interp, canvas, itemPtr, i, argv) != TCL_OK)) { |
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goto error; |
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} |
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if (ConfigureRectOval(interp, canvas, itemPtr, argc-i, argv+i, 0) |
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== TCL_OK) { |
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return TCL_OK; |
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} |
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error: |
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DeleteRectOval(canvas, itemPtr, Tk_Display(Tk_CanvasTkwin(canvas))); |
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return TCL_ERROR; |
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} |
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/* |
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*-------------------------------------------------------------- |
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* |
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* RectOvalCoords -- |
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* |
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* This procedure is invoked to process the "coords" widget |
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* command on rectangles and ovals. See the user documentation |
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* for details on what it does. |
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* |
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* Results: |
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* Returns TCL_OK or TCL_ERROR, and sets the interp's result. |
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* |
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* Side effects: |
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* The coordinates for the given item may be changed. |
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* |
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*-------------------------------------------------------------- |
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*/ |
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static int |
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RectOvalCoords(interp, canvas, itemPtr, argc, argv) |
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Tcl_Interp *interp; /* Used for error reporting. */ |
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Tk_Canvas canvas; /* Canvas containing item. */ |
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Tk_Item *itemPtr; /* Item whose coordinates are to be |
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* read or modified. */ |
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int argc; /* Number of coordinates supplied in |
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* argv. */ |
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Tcl_Obj *CONST argv[]; /* Array of coordinates: x1, y1, |
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* x2, y2, ... */ |
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{ |
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RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
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if (argc == 0) { |
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Tcl_Obj *obj = Tcl_NewObj(); |
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Tcl_Obj *subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[0]); |
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Tcl_ListObjAppendElement(interp, obj, subobj); |
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subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[1]); |
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Tcl_ListObjAppendElement(interp, obj, subobj); |
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subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[2]); |
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Tcl_ListObjAppendElement(interp, obj, subobj); |
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subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[3]); |
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Tcl_ListObjAppendElement(interp, obj, subobj); |
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Tcl_SetObjResult(interp, obj); |
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} else if ((argc == 1)||(argc == 4)) { |
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if (argc==1) { |
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if (Tcl_ListObjGetElements(interp, argv[0], &argc, |
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(Tcl_Obj ***) &argv) != TCL_OK) { |
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return TCL_ERROR; |
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} else if (argc != 4) { |
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char buf[64 + TCL_INTEGER_SPACE]; |
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sprintf(buf, "wrong # coordinates: expected 0 or 4, got %d", argc); |
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Tcl_SetResult(interp, buf, TCL_VOLATILE); |
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return TCL_ERROR; |
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} |
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} |
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if ((Tk_CanvasGetCoordFromObj(interp, canvas, argv[0], |
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&rectOvalPtr->bbox[0]) != TCL_OK) |
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|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[1], |
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&rectOvalPtr->bbox[1]) != TCL_OK) |
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|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[2], |
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&rectOvalPtr->bbox[2]) != TCL_OK) |
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|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[3], |
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&rectOvalPtr->bbox[3]) != TCL_OK)) { |
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return TCL_ERROR; |
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} |
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ComputeRectOvalBbox(canvas, rectOvalPtr); |
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} else { |
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char buf[64 + TCL_INTEGER_SPACE]; |
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sprintf(buf, "wrong # coordinates: expected 0 or 4, got %d", argc); |
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Tcl_SetResult(interp, buf, TCL_VOLATILE); |
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return TCL_ERROR; |
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} |
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return TCL_OK; |
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} |
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|
|
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/* |
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|
*-------------------------------------------------------------- |
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* |
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|
* ConfigureRectOval -- |
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* |
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|
* This procedure is invoked to configure various aspects |
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|
* of a rectangle or oval item, such as its border and |
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|
* background colors. |
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* |
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* Results: |
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* A standard Tcl result code. If an error occurs, then |
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|
* an error message is left in the interp's result. |
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|
* |
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* Side effects: |
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* Configuration information, such as colors and stipple |
|
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* patterns, may be set for itemPtr. |
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* |
|
|
*-------------------------------------------------------------- |
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*/ |
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static int |
|
|
ConfigureRectOval(interp, canvas, itemPtr, argc, argv, flags) |
|
|
Tcl_Interp *interp; /* Used for error reporting. */ |
|
|
Tk_Canvas canvas; /* Canvas containing itemPtr. */ |
|
|
Tk_Item *itemPtr; /* Rectangle item to reconfigure. */ |
|
|
int argc; /* Number of elements in argv. */ |
|
|
Tcl_Obj *CONST argv[]; /* Arguments describing things to configure. */ |
|
|
int flags; /* Flags to pass to Tk_ConfigureWidget. */ |
|
|
{ |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
XGCValues gcValues; |
|
|
GC newGC; |
|
|
unsigned long mask; |
|
|
Tk_Window tkwin; |
|
|
Tk_TSOffset *tsoffset; |
|
|
XColor *color; |
|
|
Pixmap stipple; |
|
|
Tk_State state; |
|
|
|
|
|
tkwin = Tk_CanvasTkwin(canvas); |
|
|
|
|
|
if (Tk_ConfigureWidget(interp, tkwin, configSpecs, argc, (char **) argv, |
|
|
(char *) rectOvalPtr, flags|TK_CONFIG_OBJS) != TCL_OK) { |
|
|
return TCL_ERROR; |
|
|
} |
|
|
state = itemPtr->state; |
|
|
|
|
|
/* |
|
|
* A few of the options require additional processing, such as |
|
|
* graphics contexts. |
|
|
*/ |
|
|
|
|
|
if (rectOvalPtr->outline.activeWidth > rectOvalPtr->outline.width || |
|
|
rectOvalPtr->outline.activeDash.number != 0 || |
|
|
rectOvalPtr->outline.activeColor != NULL || |
|
|
rectOvalPtr->outline.activeStipple != None || |
|
|
rectOvalPtr->activeFillColor != NULL || |
|
|
rectOvalPtr->activeFillStipple != None) { |
|
|
itemPtr->redraw_flags |= TK_ITEM_STATE_DEPENDANT; |
|
|
} else { |
|
|
itemPtr->redraw_flags &= ~TK_ITEM_STATE_DEPENDANT; |
|
|
} |
|
|
|
|
|
tsoffset = &rectOvalPtr->outline.tsoffset; |
|
|
flags = tsoffset->flags; |
|
|
if (flags & TK_OFFSET_LEFT) { |
|
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[0] + 0.5); |
|
|
} else if (flags & TK_OFFSET_CENTER) { |
|
|
tsoffset->xoffset = (int) ((rectOvalPtr->bbox[0]+rectOvalPtr->bbox[2]+1)/2); |
|
|
} else if (flags & TK_OFFSET_RIGHT) { |
|
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
|
|
} |
|
|
if (flags & TK_OFFSET_TOP) { |
|
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[1] + 0.5); |
|
|
} else if (flags & TK_OFFSET_MIDDLE) { |
|
|
tsoffset->yoffset = (int) ((rectOvalPtr->bbox[1]+rectOvalPtr->bbox[3]+1)/2); |
|
|
} else if (flags & TK_OFFSET_BOTTOM) { |
|
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
|
|
} |
|
|
|
|
|
/* |
|
|
* Configure the outline graphics context. If mask is non-zero, |
|
|
* the gc has changed and must be reallocated, provided that the |
|
|
* new settings specify a valid outline (non-zero width and non-NULL |
|
|
* color) |
|
|
*/ |
|
|
|
|
|
mask = Tk_ConfigOutlineGC(&gcValues, canvas, itemPtr, |
|
|
&(rectOvalPtr->outline)); |
|
|
if (mask && \ |
|
|
rectOvalPtr->outline.width != 0 && \ |
|
|
rectOvalPtr->outline.color != NULL) { |
|
|
gcValues.cap_style = CapProjecting; |
|
|
mask |= GCCapStyle; |
|
|
newGC = Tk_GetGC(tkwin, mask, &gcValues); |
|
|
} else { |
|
|
newGC = None; |
|
|
} |
|
|
if (rectOvalPtr->outline.gc != None) { |
|
|
Tk_FreeGC(Tk_Display(tkwin), rectOvalPtr->outline.gc); |
|
|
} |
|
|
rectOvalPtr->outline.gc = newGC; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
if (state==TK_STATE_HIDDEN) { |
|
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
|
|
return TCL_OK; |
|
|
} |
|
|
|
|
|
color = rectOvalPtr->fillColor; |
|
|
stipple = rectOvalPtr->fillStipple; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (rectOvalPtr->activeFillColor!=NULL) { |
|
|
color = rectOvalPtr->activeFillColor; |
|
|
} |
|
|
if (rectOvalPtr->activeFillStipple!=None) { |
|
|
stipple = rectOvalPtr->activeFillStipple; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectOvalPtr->disabledFillColor!=NULL) { |
|
|
color = rectOvalPtr->disabledFillColor; |
|
|
} |
|
|
if (rectOvalPtr->disabledFillStipple!=None) { |
|
|
stipple = rectOvalPtr->disabledFillStipple; |
|
|
} |
|
|
} |
|
|
|
|
|
if (color == NULL) { |
|
|
newGC = None; |
|
|
} else { |
|
|
gcValues.foreground = color->pixel; |
|
|
if (stipple != None) { |
|
|
gcValues.stipple = stipple; |
|
|
gcValues.fill_style = FillStippled; |
|
|
mask = GCForeground|GCStipple|GCFillStyle; |
|
|
} else { |
|
|
mask = GCForeground; |
|
|
} |
|
|
newGC = Tk_GetGC(tkwin, mask, &gcValues); |
|
|
} |
|
|
if (rectOvalPtr->fillGC != None) { |
|
|
Tk_FreeGC(Tk_Display(tkwin), rectOvalPtr->fillGC); |
|
|
} |
|
|
rectOvalPtr->fillGC = newGC; |
|
|
|
|
|
tsoffset = &rectOvalPtr->tsoffset; |
|
|
flags = tsoffset->flags; |
|
|
if (flags & TK_OFFSET_LEFT) { |
|
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[0] + 0.5); |
|
|
} else if (flags & TK_OFFSET_CENTER) { |
|
|
tsoffset->xoffset = (int) ((rectOvalPtr->bbox[0]+rectOvalPtr->bbox[2]+1)/2); |
|
|
} else if (flags & TK_OFFSET_RIGHT) { |
|
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
|
|
} |
|
|
if (flags & TK_OFFSET_TOP) { |
|
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[1] + 0.5); |
|
|
} else if (flags & TK_OFFSET_MIDDLE) { |
|
|
tsoffset->yoffset = (int) ((rectOvalPtr->bbox[1]+rectOvalPtr->bbox[3]+1)/2); |
|
|
} else if (flags & TK_OFFSET_BOTTOM) { |
|
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[3] + 0.5); |
|
|
} |
|
|
|
|
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
|
|
|
|
|
return TCL_OK; |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* DeleteRectOval -- |
|
|
* |
|
|
* This procedure is called to clean up the data structure |
|
|
* associated with a rectangle or oval item. |
|
|
* |
|
|
* Results: |
|
|
* None. |
|
|
* |
|
|
* Side effects: |
|
|
* Resources associated with itemPtr are released. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
static void |
|
|
DeleteRectOval(canvas, itemPtr, display) |
|
|
Tk_Canvas canvas; /* Info about overall widget. */ |
|
|
Tk_Item *itemPtr; /* Item that is being deleted. */ |
|
|
Display *display; /* Display containing window for |
|
|
* canvas. */ |
|
|
{ |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
|
|
|
Tk_DeleteOutline(display, &(rectOvalPtr->outline)); |
|
|
if (rectOvalPtr->fillColor != NULL) { |
|
|
Tk_FreeColor(rectOvalPtr->fillColor); |
|
|
} |
|
|
if (rectOvalPtr->activeFillColor != NULL) { |
|
|
Tk_FreeColor(rectOvalPtr->activeFillColor); |
|
|
} |
|
|
if (rectOvalPtr->disabledFillColor != NULL) { |
|
|
Tk_FreeColor(rectOvalPtr->disabledFillColor); |
|
|
} |
|
|
if (rectOvalPtr->fillStipple != None) { |
|
|
Tk_FreeBitmap(display, rectOvalPtr->fillStipple); |
|
|
} |
|
|
if (rectOvalPtr->activeFillStipple != None) { |
|
|
Tk_FreeBitmap(display, rectOvalPtr->activeFillStipple); |
|
|
} |
|
|
if (rectOvalPtr->disabledFillStipple != None) { |
|
|
Tk_FreeBitmap(display, rectOvalPtr->disabledFillStipple); |
|
|
} |
|
|
if (rectOvalPtr->fillGC != None) { |
|
|
Tk_FreeGC(display, rectOvalPtr->fillGC); |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* ComputeRectOvalBbox -- |
|
|
* |
|
|
* This procedure is invoked to compute the bounding box of |
|
|
* all the pixels that may be drawn as part of a rectangle |
|
|
* or oval. |
|
|
* |
|
|
* Results: |
|
|
* None. |
|
|
* |
|
|
* Side effects: |
|
|
* The fields x1, y1, x2, and y2 are updated in the header |
|
|
* for itemPtr. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
/* ARGSUSED */ |
|
|
static void |
|
|
ComputeRectOvalBbox(canvas, rectOvalPtr) |
|
|
Tk_Canvas canvas; /* Canvas that contains item. */ |
|
|
RectOvalItem *rectOvalPtr; /* Item whose bbox is to be |
|
|
* recomputed. */ |
|
|
{ |
|
|
int bloat, tmp; |
|
|
double dtmp, width; |
|
|
Tk_State state = rectOvalPtr->header.state; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
|
|
|
width = rectOvalPtr->outline.width; |
|
|
if (state==TK_STATE_HIDDEN) { |
|
|
rectOvalPtr->header.x1 = rectOvalPtr->header.y1 = |
|
|
rectOvalPtr->header.x2 = rectOvalPtr->header.y2 = -1; |
|
|
return; |
|
|
} |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == (Tk_Item *)rectOvalPtr) { |
|
|
if (rectOvalPtr->outline.activeWidth>width) { |
|
|
width = rectOvalPtr->outline.activeWidth; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectOvalPtr->outline.disabledWidth>0) { |
|
|
width = rectOvalPtr->outline.disabledWidth; |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* Make sure that the first coordinates are the lowest ones. |
|
|
*/ |
|
|
|
|
|
if (rectOvalPtr->bbox[1] > rectOvalPtr->bbox[3]) { |
|
|
double tmp; |
|
|
tmp = rectOvalPtr->bbox[3]; |
|
|
rectOvalPtr->bbox[3] = rectOvalPtr->bbox[1]; |
|
|
rectOvalPtr->bbox[1] = tmp; |
|
|
} |
|
|
if (rectOvalPtr->bbox[0] > rectOvalPtr->bbox[2]) { |
|
|
double tmp; |
|
|
tmp = rectOvalPtr->bbox[2]; |
|
|
rectOvalPtr->bbox[2] = rectOvalPtr->bbox[0]; |
|
|
rectOvalPtr->bbox[0] = tmp; |
|
|
} |
|
|
|
|
|
if (rectOvalPtr->outline.gc == None) { |
|
|
/* |
|
|
* The Win32 switch was added for 8.3 to solve a problem |
|
|
* with ovals leaving traces on bottom and right of 1 pixel. |
|
|
* This may not be the correct place to solve it, but it works. |
|
|
*/ |
|
|
#ifdef __WIN32__ |
|
|
bloat = 1; |
|
|
#else |
|
|
bloat = 0; |
|
|
#endif |
|
|
} else { |
|
|
bloat = (int) (width+1)/2; |
|
|
} |
|
|
|
|
|
/* |
|
|
* Special note: the rectangle is always drawn at least 1x1 in |
|
|
* size, so round up the upper coordinates to be at least 1 unit |
|
|
* greater than the lower ones. |
|
|
*/ |
|
|
|
|
|
tmp = (int) ((rectOvalPtr->bbox[0] >= 0) ? rectOvalPtr->bbox[0] + .5 |
|
|
: rectOvalPtr->bbox[0] - .5); |
|
|
rectOvalPtr->header.x1 = tmp - bloat; |
|
|
tmp = (int) ((rectOvalPtr->bbox[1] >= 0) ? rectOvalPtr->bbox[1] + .5 |
|
|
: rectOvalPtr->bbox[1] - .5); |
|
|
rectOvalPtr->header.y1 = tmp - bloat; |
|
|
dtmp = rectOvalPtr->bbox[2]; |
|
|
if (dtmp < (rectOvalPtr->bbox[0] + 1)) { |
|
|
dtmp = rectOvalPtr->bbox[0] + 1; |
|
|
} |
|
|
tmp = (int) ((dtmp >= 0) ? dtmp + .5 : dtmp - .5); |
|
|
rectOvalPtr->header.x2 = tmp + bloat; |
|
|
dtmp = rectOvalPtr->bbox[3]; |
|
|
if (dtmp < (rectOvalPtr->bbox[1] + 1)) { |
|
|
dtmp = rectOvalPtr->bbox[1] + 1; |
|
|
} |
|
|
tmp = (int) ((dtmp >= 0) ? dtmp + .5 : dtmp - .5); |
|
|
rectOvalPtr->header.y2 = tmp + bloat; |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* DisplayRectOval -- |
|
|
* |
|
|
* This procedure is invoked to draw a rectangle or oval |
|
|
* item in a given drawable. |
|
|
* |
|
|
* Results: |
|
|
* None. |
|
|
* |
|
|
* Side effects: |
|
|
* ItemPtr is drawn in drawable using the transformation |
|
|
* information in canvas. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
static void |
|
|
DisplayRectOval(canvas, itemPtr, display, drawable, x, y, width, height) |
|
|
Tk_Canvas canvas; /* Canvas that contains item. */ |
|
|
Tk_Item *itemPtr; /* Item to be displayed. */ |
|
|
Display *display; /* Display on which to draw item. */ |
|
|
Drawable drawable; /* Pixmap or window in which to draw |
|
|
* item. */ |
|
|
int x, y, width, height; /* Describes region of canvas that |
|
|
* must be redisplayed (not used). */ |
|
|
{ |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
short x1, y1, x2, y2; |
|
|
Pixmap fillStipple; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
/* |
|
|
* Compute the screen coordinates of the bounding box for the item. |
|
|
* Make sure that the bbox is at least one pixel large, since some |
|
|
* X servers will die if it isn't. |
|
|
*/ |
|
|
|
|
|
Tk_CanvasDrawableCoords(canvas, rectOvalPtr->bbox[0], rectOvalPtr->bbox[1], |
|
|
&x1, &y1); |
|
|
Tk_CanvasDrawableCoords(canvas, rectOvalPtr->bbox[2], rectOvalPtr->bbox[3], |
|
|
&x2, &y2); |
|
|
if (x2 <= x1) { |
|
|
x2 = x1+1; |
|
|
} |
|
|
if (y2 <= y1) { |
|
|
y2 = y1+1; |
|
|
} |
|
|
|
|
|
/* |
|
|
* Display filled part first (if wanted), then outline. If we're |
|
|
* stippling, then modify the stipple offset in the GC. Be sure to |
|
|
* reset the offset when done, since the GC is supposed to be |
|
|
* read-only. |
|
|
*/ |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
fillStipple = rectOvalPtr->fillStipple; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == (Tk_Item *)rectOvalPtr) { |
|
|
if (rectOvalPtr->activeFillStipple!=None) { |
|
|
fillStipple = rectOvalPtr->activeFillStipple; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectOvalPtr->disabledFillStipple!=None) { |
|
|
fillStipple = rectOvalPtr->disabledFillStipple; |
|
|
} |
|
|
} |
|
|
|
|
|
if (rectOvalPtr->fillGC != None) { |
|
|
if (fillStipple != None) { |
|
|
Tk_TSOffset *tsoffset; |
|
|
int w=0; int h=0; |
|
|
tsoffset = &rectOvalPtr->tsoffset; |
|
|
if (tsoffset) { |
|
|
int flags = tsoffset->flags; |
|
|
if (flags & (TK_OFFSET_CENTER|TK_OFFSET_MIDDLE)) { |
|
|
Tk_SizeOfBitmap(display, fillStipple, &w, &h); |
|
|
if (flags & TK_OFFSET_CENTER) { |
|
|
w /= 2; |
|
|
} else { |
|
|
w = 0; |
|
|
} |
|
|
if (flags & TK_OFFSET_MIDDLE) { |
|
|
h /= 2; |
|
|
} else { |
|
|
h = 0; |
|
|
} |
|
|
} |
|
|
tsoffset->xoffset -= w; |
|
|
tsoffset->yoffset -= h; |
|
|
} |
|
|
Tk_CanvasSetOffset(canvas, rectOvalPtr->fillGC, tsoffset); |
|
|
if (tsoffset) { |
|
|
tsoffset->xoffset += w; |
|
|
tsoffset->yoffset += h; |
|
|
} |
|
|
} |
|
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
|
|
XFillRectangle(display, drawable, rectOvalPtr->fillGC, |
|
|
x1, y1, (unsigned int) (x2-x1), (unsigned int) (y2-y1)); |
|
|
} else { |
|
|
XFillArc(display, drawable, rectOvalPtr->fillGC, |
|
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1), |
|
|
0, 360*64); |
|
|
} |
|
|
if (fillStipple != None) { |
|
|
XSetTSOrigin(display, rectOvalPtr->fillGC, 0, 0); |
|
|
} |
|
|
} |
|
|
if (rectOvalPtr->outline.gc != None) { |
|
|
Tk_ChangeOutlineGC(canvas, itemPtr, &(rectOvalPtr->outline)); |
|
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
|
|
XDrawRectangle(display, drawable, rectOvalPtr->outline.gc, |
|
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1)); |
|
|
} else { |
|
|
XDrawArc(display, drawable, rectOvalPtr->outline.gc, |
|
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1), 0, 360*64); |
|
|
} |
|
|
Tk_ResetOutlineGC(canvas, itemPtr, &(rectOvalPtr->outline)); |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* RectToPoint -- |
|
|
* |
|
|
* Computes the distance from a given point to a given |
|
|
* rectangle, in canvas units. |
|
|
* |
|
|
* Results: |
|
|
* The return value is 0 if the point whose x and y coordinates |
|
|
* are coordPtr[0] and coordPtr[1] is inside the rectangle. If the |
|
|
* point isn't inside the rectangle then the return value is the |
|
|
* distance from the point to the rectangle. If itemPtr is filled, |
|
|
* then anywhere in the interior is considered "inside"; if |
|
|
* itemPtr isn't filled, then "inside" means only the area |
|
|
* occupied by the outline. |
|
|
* |
|
|
* Side effects: |
|
|
* None. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
/* ARGSUSED */ |
|
|
static double |
|
|
RectToPoint(canvas, itemPtr, pointPtr) |
|
|
Tk_Canvas canvas; /* Canvas containing item. */ |
|
|
Tk_Item *itemPtr; /* Item to check against point. */ |
|
|
double *pointPtr; /* Pointer to x and y coordinates. */ |
|
|
{ |
|
|
RectOvalItem *rectPtr = (RectOvalItem *) itemPtr; |
|
|
double xDiff, yDiff, x1, y1, x2, y2, inc, tmp; |
|
|
double width; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
|
|
|
width = rectPtr->outline.width; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (rectPtr->outline.activeWidth>width) { |
|
|
width = rectPtr->outline.activeWidth; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectPtr->outline.disabledWidth>0) { |
|
|
width = rectPtr->outline.disabledWidth; |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* Generate a new larger rectangle that includes the border |
|
|
* width, if there is one. |
|
|
*/ |
|
|
|
|
|
x1 = rectPtr->bbox[0]; |
|
|
y1 = rectPtr->bbox[1]; |
|
|
x2 = rectPtr->bbox[2]; |
|
|
y2 = rectPtr->bbox[3]; |
|
|
if (rectPtr->outline.gc != None) { |
|
|
inc = width/2.0; |
|
|
x1 -= inc; |
|
|
y1 -= inc; |
|
|
x2 += inc; |
|
|
y2 += inc; |
|
|
} |
|
|
|
|
|
/* |
|
|
* If the point is inside the rectangle, handle specially: |
|
|
* distance is 0 if rectangle is filled, otherwise compute |
|
|
* distance to nearest edge of rectangle and subtract width |
|
|
* of edge. |
|
|
*/ |
|
|
|
|
|
if ((pointPtr[0] >= x1) && (pointPtr[0] < x2) |
|
|
&& (pointPtr[1] >= y1) && (pointPtr[1] < y2)) { |
|
|
if ((rectPtr->fillGC != None) || (rectPtr->outline.gc == None)) { |
|
|
return 0.0; |
|
|
} |
|
|
xDiff = pointPtr[0] - x1; |
|
|
tmp = x2 - pointPtr[0]; |
|
|
if (tmp < xDiff) { |
|
|
xDiff = tmp; |
|
|
} |
|
|
yDiff = pointPtr[1] - y1; |
|
|
tmp = y2 - pointPtr[1]; |
|
|
if (tmp < yDiff) { |
|
|
yDiff = tmp; |
|
|
} |
|
|
if (yDiff < xDiff) { |
|
|
xDiff = yDiff; |
|
|
} |
|
|
xDiff -= width; |
|
|
if (xDiff < 0.0) { |
|
|
return 0.0; |
|
|
} |
|
|
return xDiff; |
|
|
} |
|
|
|
|
|
/* |
|
|
* Point is outside rectangle. |
|
|
*/ |
|
|
|
|
|
if (pointPtr[0] < x1) { |
|
|
xDiff = x1 - pointPtr[0]; |
|
|
} else if (pointPtr[0] > x2) { |
|
|
xDiff = pointPtr[0] - x2; |
|
|
} else { |
|
|
xDiff = 0; |
|
|
} |
|
|
|
|
|
if (pointPtr[1] < y1) { |
|
|
yDiff = y1 - pointPtr[1]; |
|
|
} else if (pointPtr[1] > y2) { |
|
|
yDiff = pointPtr[1] - y2; |
|
|
} else { |
|
|
yDiff = 0; |
|
|
} |
|
|
|
|
|
return hypot(xDiff, yDiff); |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* OvalToPoint -- |
|
|
* |
|
|
* Computes the distance from a given point to a given |
|
|
* oval, in canvas units. |
|
|
* |
|
|
* Results: |
|
|
* The return value is 0 if the point whose x and y coordinates |
|
|
* are coordPtr[0] and coordPtr[1] is inside the oval. If the |
|
|
* point isn't inside the oval then the return value is the |
|
|
* distance from the point to the oval. If itemPtr is filled, |
|
|
* then anywhere in the interior is considered "inside"; if |
|
|
* itemPtr isn't filled, then "inside" means only the area |
|
|
* occupied by the outline. |
|
|
* |
|
|
* Side effects: |
|
|
* None. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
/* ARGSUSED */ |
|
|
static double |
|
|
OvalToPoint(canvas, itemPtr, pointPtr) |
|
|
Tk_Canvas canvas; /* Canvas containing item. */ |
|
|
Tk_Item *itemPtr; /* Item to check against point. */ |
|
|
double *pointPtr; /* Pointer to x and y coordinates. */ |
|
|
{ |
|
|
RectOvalItem *ovalPtr = (RectOvalItem *) itemPtr; |
|
|
double width; |
|
|
int filled; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
|
|
|
width = (double) ovalPtr->outline.width; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (ovalPtr->outline.activeWidth>width) { |
|
|
width = (double) ovalPtr->outline.activeWidth; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (ovalPtr->outline.disabledWidth>0) { |
|
|
width = (double) ovalPtr->outline.disabledWidth; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
filled = ovalPtr->fillGC != None; |
|
|
if (ovalPtr->outline.gc == None) { |
|
|
width = 0.0; |
|
|
filled = 1; |
|
|
} |
|
|
return TkOvalToPoint(ovalPtr->bbox, width, filled, pointPtr); |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* RectToArea -- |
|
|
* |
|
|
* This procedure is called to determine whether an item |
|
|
* lies entirely inside, entirely outside, or overlapping |
|
|
* a given rectangle. |
|
|
* |
|
|
* Results: |
|
|
* -1 is returned if the item is entirely outside the area |
|
|
* given by rectPtr, 0 if it overlaps, and 1 if it is entirely |
|
|
* inside the given area. |
|
|
* |
|
|
* Side effects: |
|
|
* None. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
/* ARGSUSED */ |
|
|
static int |
|
|
RectToArea(canvas, itemPtr, areaPtr) |
|
|
Tk_Canvas canvas; /* Canvas containing item. */ |
|
|
Tk_Item *itemPtr; /* Item to check against rectangle. */ |
|
|
double *areaPtr; /* Pointer to array of four coordinates |
|
|
* (x1, y1, x2, y2) describing rectangular |
|
|
* area. */ |
|
|
{ |
|
|
RectOvalItem *rectPtr = (RectOvalItem *) itemPtr; |
|
|
double halfWidth; |
|
|
double width; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
|
|
|
width = rectPtr->outline.width; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (rectPtr->outline.activeWidth>width) { |
|
|
width = rectPtr->outline.activeWidth; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectPtr->outline.disabledWidth>0) { |
|
|
width = rectPtr->outline.disabledWidth; |
|
|
} |
|
|
} |
|
|
|
|
|
halfWidth = width/2.0; |
|
|
if (rectPtr->outline.gc == None) { |
|
|
halfWidth = 0.0; |
|
|
} |
|
|
|
|
|
if ((areaPtr[2] <= (rectPtr->bbox[0] - halfWidth)) |
|
|
|| (areaPtr[0] >= (rectPtr->bbox[2] + halfWidth)) |
|
|
|| (areaPtr[3] <= (rectPtr->bbox[1] - halfWidth)) |
|
|
|| (areaPtr[1] >= (rectPtr->bbox[3] + halfWidth))) { |
|
|
return -1; |
|
|
} |
|
|
if ((rectPtr->fillGC == None) && (rectPtr->outline.gc != None) |
|
|
&& (areaPtr[0] >= (rectPtr->bbox[0] + halfWidth)) |
|
|
&& (areaPtr[1] >= (rectPtr->bbox[1] + halfWidth)) |
|
|
&& (areaPtr[2] <= (rectPtr->bbox[2] - halfWidth)) |
|
|
&& (areaPtr[3] <= (rectPtr->bbox[3] - halfWidth))) { |
|
|
return -1; |
|
|
} |
|
|
if ((areaPtr[0] <= (rectPtr->bbox[0] - halfWidth)) |
|
|
&& (areaPtr[1] <= (rectPtr->bbox[1] - halfWidth)) |
|
|
&& (areaPtr[2] >= (rectPtr->bbox[2] + halfWidth)) |
|
|
&& (areaPtr[3] >= (rectPtr->bbox[3] + halfWidth))) { |
|
|
return 1; |
|
|
} |
|
|
return 0; |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* OvalToArea -- |
|
|
* |
|
|
* This procedure is called to determine whether an item |
|
|
* lies entirely inside, entirely outside, or overlapping |
|
|
* a given rectangular area. |
|
|
* |
|
|
* Results: |
|
|
* -1 is returned if the item is entirely outside the area |
|
|
* given by rectPtr, 0 if it overlaps, and 1 if it is entirely |
|
|
* inside the given area. |
|
|
* |
|
|
* Side effects: |
|
|
* None. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
/* ARGSUSED */ |
|
|
static int |
|
|
OvalToArea(canvas, itemPtr, areaPtr) |
|
|
Tk_Canvas canvas; /* Canvas containing item. */ |
|
|
Tk_Item *itemPtr; /* Item to check against oval. */ |
|
|
double *areaPtr; /* Pointer to array of four coordinates |
|
|
* (x1, y1, x2, y2) describing rectangular |
|
|
* area. */ |
|
|
{ |
|
|
RectOvalItem *ovalPtr = (RectOvalItem *) itemPtr; |
|
|
double oval[4], halfWidth; |
|
|
int result; |
|
|
double width; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
|
|
|
width = ovalPtr->outline.width; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (ovalPtr->outline.activeWidth>width) { |
|
|
width = ovalPtr->outline.activeWidth; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (ovalPtr->outline.disabledWidth>0) { |
|
|
width = ovalPtr->outline.disabledWidth; |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* Expand the oval to include the width of the outline, if any. |
|
|
*/ |
|
|
|
|
|
halfWidth = width/2.0; |
|
|
if (ovalPtr->outline.gc == None) { |
|
|
halfWidth = 0.0; |
|
|
} |
|
|
oval[0] = ovalPtr->bbox[0] - halfWidth; |
|
|
oval[1] = ovalPtr->bbox[1] - halfWidth; |
|
|
oval[2] = ovalPtr->bbox[2] + halfWidth; |
|
|
oval[3] = ovalPtr->bbox[3] + halfWidth; |
|
|
|
|
|
result = TkOvalToArea(oval, areaPtr); |
|
|
|
|
|
/* |
|
|
* If the rectangle appears to overlap the oval and the oval |
|
|
* isn't filled, do one more check to see if perhaps all four |
|
|
* of the rectangle's corners are totally inside the oval's |
|
|
* unfilled center, in which case we should return "outside". |
|
|
*/ |
|
|
|
|
|
if ((result == 0) && (ovalPtr->outline.gc != None) |
|
|
&& (ovalPtr->fillGC == None)) { |
|
|
double centerX, centerY, height; |
|
|
double xDelta1, yDelta1, xDelta2, yDelta2; |
|
|
|
|
|
centerX = (ovalPtr->bbox[0] + ovalPtr->bbox[2])/2.0; |
|
|
centerY = (ovalPtr->bbox[1] + ovalPtr->bbox[3])/2.0; |
|
|
width = (ovalPtr->bbox[2] - ovalPtr->bbox[0])/2.0 - halfWidth; |
|
|
height = (ovalPtr->bbox[3] - ovalPtr->bbox[1])/2.0 - halfWidth; |
|
|
xDelta1 = (areaPtr[0] - centerX)/width; |
|
|
xDelta1 *= xDelta1; |
|
|
yDelta1 = (areaPtr[1] - centerY)/height; |
|
|
yDelta1 *= yDelta1; |
|
|
xDelta2 = (areaPtr[2] - centerX)/width; |
|
|
xDelta2 *= xDelta2; |
|
|
yDelta2 = (areaPtr[3] - centerY)/height; |
|
|
yDelta2 *= yDelta2; |
|
|
if (((xDelta1 + yDelta1) < 1.0) |
|
|
&& ((xDelta1 + yDelta2) < 1.0) |
|
|
&& ((xDelta2 + yDelta1) < 1.0) |
|
|
&& ((xDelta2 + yDelta2) < 1.0)) { |
|
|
return -1; |
|
|
} |
|
|
} |
|
|
return result; |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* ScaleRectOval -- |
|
|
* |
|
|
* This procedure is invoked to rescale a rectangle or oval |
|
|
* item. |
|
|
* |
|
|
* Results: |
|
|
* None. |
|
|
* |
|
|
* Side effects: |
|
|
* The rectangle or oval referred to by itemPtr is rescaled |
|
|
* so that the following transformation is applied to all |
|
|
* point coordinates: |
|
|
* x' = originX + scaleX*(x-originX) |
|
|
* y' = originY + scaleY*(y-originY) |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
static void |
|
|
ScaleRectOval(canvas, itemPtr, originX, originY, scaleX, scaleY) |
|
|
Tk_Canvas canvas; /* Canvas containing rectangle. */ |
|
|
Tk_Item *itemPtr; /* Rectangle to be scaled. */ |
|
|
double originX, originY; /* Origin about which to scale rect. */ |
|
|
double scaleX; /* Amount to scale in X direction. */ |
|
|
double scaleY; /* Amount to scale in Y direction. */ |
|
|
{ |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
|
|
|
rectOvalPtr->bbox[0] = originX + scaleX*(rectOvalPtr->bbox[0] - originX); |
|
|
rectOvalPtr->bbox[1] = originY + scaleY*(rectOvalPtr->bbox[1] - originY); |
|
|
rectOvalPtr->bbox[2] = originX + scaleX*(rectOvalPtr->bbox[2] - originX); |
|
|
rectOvalPtr->bbox[3] = originY + scaleY*(rectOvalPtr->bbox[3] - originY); |
|
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* TranslateRectOval -- |
|
|
* |
|
|
* This procedure is called to move a rectangle or oval by a |
|
|
* given amount. |
|
|
* |
|
|
* Results: |
|
|
* None. |
|
|
* |
|
|
* Side effects: |
|
|
* The position of the rectangle or oval is offset by |
|
|
* (xDelta, yDelta), and the bounding box is updated in the |
|
|
* generic part of the item structure. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
static void |
|
|
TranslateRectOval(canvas, itemPtr, deltaX, deltaY) |
|
|
Tk_Canvas canvas; /* Canvas containing item. */ |
|
|
Tk_Item *itemPtr; /* Item that is being moved. */ |
|
|
double deltaX, deltaY; /* Amount by which item is to be |
|
|
* moved. */ |
|
|
{ |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
|
|
|
rectOvalPtr->bbox[0] += deltaX; |
|
|
rectOvalPtr->bbox[1] += deltaY; |
|
|
rectOvalPtr->bbox[2] += deltaX; |
|
|
rectOvalPtr->bbox[3] += deltaY; |
|
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
|
|
} |
|
|
|
|
|
/* |
|
|
*-------------------------------------------------------------- |
|
|
* |
|
|
* RectOvalToPostscript -- |
|
|
* |
|
|
* This procedure is called to generate Postscript for |
|
|
* rectangle and oval items. |
|
|
* |
|
|
* Results: |
|
|
* The return value is a standard Tcl result. If an error |
|
|
* occurs in generating Postscript then an error message is |
|
|
* left in the interp's result, replacing whatever used to be there. |
|
|
* If no error occurs, then Postscript for the rectangle is |
|
|
* appended to the result. |
|
|
* |
|
|
* Side effects: |
|
|
* None. |
|
|
* |
|
|
*-------------------------------------------------------------- |
|
|
*/ |
|
|
|
|
|
static int |
|
|
RectOvalToPostscript(interp, canvas, itemPtr, prepass) |
|
|
Tcl_Interp *interp; /* Interpreter for error reporting. */ |
|
|
Tk_Canvas canvas; /* Information about overall canvas. */ |
|
|
Tk_Item *itemPtr; /* Item for which Postscript is |
|
|
* wanted. */ |
|
|
int prepass; /* 1 means this is a prepass to |
|
|
* collect font information; 0 means |
|
|
* final Postscript is being created. */ |
|
|
{ |
|
|
char pathCmd[500]; |
|
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
|
|
double y1, y2; |
|
|
XColor *color; |
|
|
XColor *fillColor; |
|
|
Pixmap fillStipple; |
|
|
Tk_State state = itemPtr->state; |
|
|
|
|
|
y1 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[1]); |
|
|
y2 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[3]); |
|
|
|
|
|
/* |
|
|
* Generate a string that creates a path for the rectangle or oval. |
|
|
* This is the only part of the procedure's code that is type- |
|
|
* specific. |
|
|
*/ |
|
|
|
|
|
|
|
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
|
|
sprintf(pathCmd, "%.15g %.15g moveto %.15g 0 rlineto 0 %.15g rlineto %.15g 0 rlineto closepath\n", |
|
|
rectOvalPtr->bbox[0], y1, |
|
|
rectOvalPtr->bbox[2]-rectOvalPtr->bbox[0], y2-y1, |
|
|
rectOvalPtr->bbox[0]-rectOvalPtr->bbox[2]); |
|
|
} else { |
|
|
sprintf(pathCmd, "matrix currentmatrix\n%.15g %.15g translate %.15g %.15g scale 1 0 moveto 0 0 1 0 360 arc\nsetmatrix\n", |
|
|
(rectOvalPtr->bbox[0] + rectOvalPtr->bbox[2])/2, (y1 + y2)/2, |
|
|
(rectOvalPtr->bbox[2] - rectOvalPtr->bbox[0])/2, (y1 - y2)/2); |
|
|
} |
|
|
|
|
|
if(state == TK_STATE_NULL) { |
|
|
state = ((TkCanvas *)canvas)->canvas_state; |
|
|
} |
|
|
color = rectOvalPtr->outline.color; |
|
|
fillColor = rectOvalPtr->fillColor; |
|
|
fillStipple = rectOvalPtr->fillStipple; |
|
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
|
|
if (rectOvalPtr->outline.activeColor!=NULL) { |
|
|
color = rectOvalPtr->outline.activeColor; |
|
|
} |
|
|
if (rectOvalPtr->activeFillColor!=NULL) { |
|
|
fillColor = rectOvalPtr->activeFillColor; |
|
|
} |
|
|
if (rectOvalPtr->activeFillStipple!=None) { |
|
|
fillStipple = rectOvalPtr->activeFillStipple; |
|
|
} |
|
|
} else if (state==TK_STATE_DISABLED) { |
|
|
if (rectOvalPtr->outline.disabledColor!=NULL) { |
|
|
color = rectOvalPtr->outline.disabledColor; |
|
|
} |
|
|
if (rectOvalPtr->disabledFillColor!=NULL) { |
|
|
fillColor = rectOvalPtr->disabledFillColor; |
|
|
} |
|
|
if (rectOvalPtr->disabledFillStipple!=None) { |
|
|
fillStipple = rectOvalPtr->disabledFillStipple; |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* First draw the filled area of the rectangle. |
|
|
*/ |
|
|
|
|
|
if (fillColor != NULL) { |
|
|
Tcl_AppendResult(interp, pathCmd, (char *) NULL); |
|
|
if (Tk_CanvasPsColor(interp, canvas, fillColor) |
|
|
!= TCL_OK) { |
|
|
return TCL_ERROR; |
|
|
} |
|
|
if (fillStipple != None) { |
|
|
Tcl_AppendResult(interp, "clip ", (char *) NULL); |
|
|
if (Tk_CanvasPsStipple(interp, canvas, fillStipple) |
|
|
!= TCL_OK) { |
|
|
return TCL_ERROR; |
|
|
} |
|
|
if (color != NULL) { |
|
|
Tcl_AppendResult(interp, "grestore gsave\n", (char *) NULL); |
|
|
} |
|
|
} else { |
|
|
Tcl_AppendResult(interp, "fill\n", (char *) NULL); |
|
|
} |
|
|
} |
|
|
|
|
|
/* |
|
|
* Now draw the outline, if there is one. |
|
|
*/ |
|
|
|
|
|
if (color != NULL) { |
|
|
Tcl_AppendResult(interp, pathCmd, "0 setlinejoin 2 setlinecap\n", |
|
|
(char *) NULL); |
|
|
if (Tk_CanvasPsOutline(canvas, itemPtr, |
|
|
&(rectOvalPtr->outline))!= TCL_OK) { |
|
|
return TCL_ERROR; |
|
|
} |
|
|
} |
|
|
return TCL_OK; |
|
|
} |
|
|
|
|
|
|
|
|
/* $History: tkRectOval.c $ |
|
|
* |
|
|
* ***************** Version 1 ***************** |
|
|
* User: Dtashley Date: 1/02/01 Time: 3:03a |
|
|
* Created in $/IjuScripter, IjuConsole/Source/Tk Base |
|
|
* Initial check-in. |
|
|
*/ |
|
|
|
|
|
/* End of TKRECTOVAL.C */ |
|
| 1 |
|
/* $Header$ */ |
| 2 |
|
|
| 3 |
|
/* |
| 4 |
|
* tkRectOval.c -- |
| 5 |
|
* |
| 6 |
|
* This file implements rectangle and oval items for canvas |
| 7 |
|
* widgets. |
| 8 |
|
* |
| 9 |
|
* Copyright (c) 1991-1994 The Regents of the University of California. |
| 10 |
|
* Copyright (c) 1994-1997 Sun Microsystems, Inc. |
| 11 |
|
* |
| 12 |
|
* See the file "license.terms" for information on usage and redistribution |
| 13 |
|
* of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
| 14 |
|
* |
| 15 |
|
* RCS: @(#) $Id: tkrectoval.c,v 1.1.1.1 2001/06/13 05:07:29 dtashley Exp $ |
| 16 |
|
*/ |
| 17 |
|
|
| 18 |
|
#include <stdio.h> |
| 19 |
|
#include "tk.h" |
| 20 |
|
#include "tkInt.h" |
| 21 |
|
#include "tkPort.h" |
| 22 |
|
#include "tkCanvas.h" |
| 23 |
|
|
| 24 |
|
/* |
| 25 |
|
* The structure below defines the record for each rectangle/oval item. |
| 26 |
|
*/ |
| 27 |
|
|
| 28 |
|
typedef struct RectOvalItem { |
| 29 |
|
Tk_Item header; /* Generic stuff that's the same for all |
| 30 |
|
* types. MUST BE FIRST IN STRUCTURE. */ |
| 31 |
|
Tk_Outline outline; /* Outline structure */ |
| 32 |
|
double bbox[4]; /* Coordinates of bounding box for rectangle |
| 33 |
|
* or oval (x1, y1, x2, y2). Item includes |
| 34 |
|
* x1 and x2 but not y1 and y2. */ |
| 35 |
|
Tk_TSOffset tsoffset; |
| 36 |
|
XColor *fillColor; /* Color for filling rectangle/oval. */ |
| 37 |
|
XColor *activeFillColor; /* Color for filling rectangle/oval if state is active. */ |
| 38 |
|
XColor *disabledFillColor; /* Color for filling rectangle/oval if state is disabled. */ |
| 39 |
|
Pixmap fillStipple; /* Stipple bitmap for filling item. */ |
| 40 |
|
Pixmap activeFillStipple; /* Stipple bitmap for filling item if state is active. */ |
| 41 |
|
Pixmap disabledFillStipple; /* Stipple bitmap for filling item if state is disabled. */ |
| 42 |
|
GC fillGC; /* Graphics context for filling item. */ |
| 43 |
|
} RectOvalItem; |
| 44 |
|
|
| 45 |
|
/* |
| 46 |
|
* Information used for parsing configuration specs: |
| 47 |
|
*/ |
| 48 |
|
|
| 49 |
|
static Tk_CustomOption stateOption = { |
| 50 |
|
(Tk_OptionParseProc *) TkStateParseProc, |
| 51 |
|
TkStatePrintProc, (ClientData) 2 |
| 52 |
|
}; |
| 53 |
|
static Tk_CustomOption tagsOption = { |
| 54 |
|
(Tk_OptionParseProc *) Tk_CanvasTagsParseProc, |
| 55 |
|
Tk_CanvasTagsPrintProc, (ClientData) NULL |
| 56 |
|
}; |
| 57 |
|
static Tk_CustomOption dashOption = { |
| 58 |
|
(Tk_OptionParseProc *) TkCanvasDashParseProc, |
| 59 |
|
TkCanvasDashPrintProc, (ClientData) NULL |
| 60 |
|
}; |
| 61 |
|
static Tk_CustomOption offsetOption = { |
| 62 |
|
(Tk_OptionParseProc *) TkOffsetParseProc, |
| 63 |
|
TkOffsetPrintProc, (ClientData) TK_OFFSET_RELATIVE |
| 64 |
|
}; |
| 65 |
|
static Tk_CustomOption pixelOption = { |
| 66 |
|
(Tk_OptionParseProc *) TkPixelParseProc, |
| 67 |
|
TkPixelPrintProc, (ClientData) NULL |
| 68 |
|
}; |
| 69 |
|
|
| 70 |
|
static Tk_ConfigSpec configSpecs[] = { |
| 71 |
|
{TK_CONFIG_CUSTOM, "-activedash", (char *) NULL, (char *) NULL, |
| 72 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.activeDash), |
| 73 |
|
TK_CONFIG_NULL_OK, &dashOption}, |
| 74 |
|
{TK_CONFIG_COLOR, "-activefill", (char *) NULL, (char *) NULL, |
| 75 |
|
(char *) NULL, Tk_Offset(RectOvalItem, activeFillColor), |
| 76 |
|
TK_CONFIG_NULL_OK}, |
| 77 |
|
{TK_CONFIG_COLOR, "-activeoutline", (char *) NULL, (char *) NULL, |
| 78 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.activeColor), |
| 79 |
|
TK_CONFIG_NULL_OK}, |
| 80 |
|
{TK_CONFIG_BITMAP, "-activeoutlinestipple", (char *) NULL, (char *) NULL, |
| 81 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.activeStipple), |
| 82 |
|
TK_CONFIG_NULL_OK}, |
| 83 |
|
{TK_CONFIG_BITMAP, "-activestipple", (char *) NULL, (char *) NULL, |
| 84 |
|
(char *) NULL, Tk_Offset(RectOvalItem, activeFillStipple), |
| 85 |
|
TK_CONFIG_NULL_OK}, |
| 86 |
|
{TK_CONFIG_CUSTOM, "-activewidth", (char *) NULL, (char *) NULL, |
| 87 |
|
"0.0", Tk_Offset(RectOvalItem, outline.activeWidth), |
| 88 |
|
TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
| 89 |
|
{TK_CONFIG_CUSTOM, "-dash", (char *) NULL, (char *) NULL, |
| 90 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.dash), |
| 91 |
|
TK_CONFIG_NULL_OK, &dashOption}, |
| 92 |
|
{TK_CONFIG_PIXELS, "-dashoffset", (char *) NULL, (char *) NULL, |
| 93 |
|
"0", Tk_Offset(RectOvalItem, outline.offset), |
| 94 |
|
TK_CONFIG_DONT_SET_DEFAULT}, |
| 95 |
|
{TK_CONFIG_CUSTOM, "-disableddash", (char *) NULL, (char *) NULL, |
| 96 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledDash), |
| 97 |
|
TK_CONFIG_NULL_OK, &dashOption}, |
| 98 |
|
{TK_CONFIG_COLOR, "-disabledfill", (char *) NULL, (char *) NULL, |
| 99 |
|
(char *) NULL, Tk_Offset(RectOvalItem, disabledFillColor), |
| 100 |
|
TK_CONFIG_NULL_OK}, |
| 101 |
|
{TK_CONFIG_COLOR, "-disabledoutline", (char *) NULL, (char *) NULL, |
| 102 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledColor), |
| 103 |
|
TK_CONFIG_NULL_OK}, |
| 104 |
|
{TK_CONFIG_BITMAP, "-disabledoutlinestipple", (char *) NULL, (char *) NULL, |
| 105 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.disabledStipple), |
| 106 |
|
TK_CONFIG_NULL_OK}, |
| 107 |
|
{TK_CONFIG_BITMAP, "-disabledstipple", (char *) NULL, (char *) NULL, |
| 108 |
|
(char *) NULL, Tk_Offset(RectOvalItem, disabledFillStipple), |
| 109 |
|
TK_CONFIG_NULL_OK}, |
| 110 |
|
{TK_CONFIG_PIXELS, "-disabledwidth", (char *) NULL, (char *) NULL, |
| 111 |
|
"0.0", Tk_Offset(RectOvalItem, outline.disabledWidth), |
| 112 |
|
TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
| 113 |
|
{TK_CONFIG_COLOR, "-fill", (char *) NULL, (char *) NULL, |
| 114 |
|
(char *) NULL, Tk_Offset(RectOvalItem, fillColor), TK_CONFIG_NULL_OK}, |
| 115 |
|
{TK_CONFIG_CUSTOM, "-offset", (char *) NULL, (char *) NULL, |
| 116 |
|
"0,0", Tk_Offset(RectOvalItem, tsoffset), |
| 117 |
|
TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, |
| 118 |
|
{TK_CONFIG_COLOR, "-outline", (char *) NULL, (char *) NULL, |
| 119 |
|
"black", Tk_Offset(RectOvalItem, outline.color), TK_CONFIG_NULL_OK}, |
| 120 |
|
{TK_CONFIG_CUSTOM, "-outlineoffset", (char *) NULL, (char *) NULL, |
| 121 |
|
"0,0", Tk_Offset(RectOvalItem, outline.tsoffset), |
| 122 |
|
TK_CONFIG_DONT_SET_DEFAULT, &offsetOption}, |
| 123 |
|
{TK_CONFIG_BITMAP, "-outlinestipple", (char *) NULL, (char *) NULL, |
| 124 |
|
(char *) NULL, Tk_Offset(RectOvalItem, outline.stipple), |
| 125 |
|
TK_CONFIG_NULL_OK}, |
| 126 |
|
{TK_CONFIG_CUSTOM, "-state", (char *) NULL, (char *) NULL, |
| 127 |
|
(char *) NULL, Tk_Offset(Tk_Item, state),TK_CONFIG_NULL_OK, |
| 128 |
|
&stateOption}, |
| 129 |
|
{TK_CONFIG_BITMAP, "-stipple", (char *) NULL, (char *) NULL, |
| 130 |
|
(char *) NULL, Tk_Offset(RectOvalItem, fillStipple), TK_CONFIG_NULL_OK}, |
| 131 |
|
{TK_CONFIG_CUSTOM, "-tags", (char *) NULL, (char *) NULL, |
| 132 |
|
(char *) NULL, 0, TK_CONFIG_NULL_OK, &tagsOption}, |
| 133 |
|
{TK_CONFIG_CUSTOM, "-width", (char *) NULL, (char *) NULL, |
| 134 |
|
"1.0", Tk_Offset(RectOvalItem, outline.width), |
| 135 |
|
TK_CONFIG_DONT_SET_DEFAULT, &pixelOption}, |
| 136 |
|
{TK_CONFIG_END, (char *) NULL, (char *) NULL, (char *) NULL, |
| 137 |
|
(char *) NULL, 0, 0} |
| 138 |
|
}; |
| 139 |
|
|
| 140 |
|
/* |
| 141 |
|
* Prototypes for procedures defined in this file: |
| 142 |
|
*/ |
| 143 |
|
|
| 144 |
|
static void ComputeRectOvalBbox _ANSI_ARGS_((Tk_Canvas canvas, |
| 145 |
|
RectOvalItem *rectOvalPtr)); |
| 146 |
|
static int ConfigureRectOval _ANSI_ARGS_((Tcl_Interp *interp, |
| 147 |
|
Tk_Canvas canvas, Tk_Item *itemPtr, int argc, |
| 148 |
|
Tcl_Obj *CONST argv[], int flags)); |
| 149 |
|
static int CreateRectOval _ANSI_ARGS_((Tcl_Interp *interp, |
| 150 |
|
Tk_Canvas canvas, struct Tk_Item *itemPtr, |
| 151 |
|
int argc, Tcl_Obj *CONST argv[])); |
| 152 |
|
static void DeleteRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
| 153 |
|
Tk_Item *itemPtr, Display *display)); |
| 154 |
|
static void DisplayRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
| 155 |
|
Tk_Item *itemPtr, Display *display, Drawable dst, |
| 156 |
|
int x, int y, int width, int height)); |
| 157 |
|
static int OvalToArea _ANSI_ARGS_((Tk_Canvas canvas, |
| 158 |
|
Tk_Item *itemPtr, double *areaPtr)); |
| 159 |
|
static double OvalToPoint _ANSI_ARGS_((Tk_Canvas canvas, |
| 160 |
|
Tk_Item *itemPtr, double *pointPtr)); |
| 161 |
|
static int RectOvalCoords _ANSI_ARGS_((Tcl_Interp *interp, |
| 162 |
|
Tk_Canvas canvas, Tk_Item *itemPtr, int argc, |
| 163 |
|
Tcl_Obj *CONST argv[])); |
| 164 |
|
static int RectOvalToPostscript _ANSI_ARGS_((Tcl_Interp *interp, |
| 165 |
|
Tk_Canvas canvas, Tk_Item *itemPtr, int prepass)); |
| 166 |
|
static int RectToArea _ANSI_ARGS_((Tk_Canvas canvas, |
| 167 |
|
Tk_Item *itemPtr, double *areaPtr)); |
| 168 |
|
static double RectToPoint _ANSI_ARGS_((Tk_Canvas canvas, |
| 169 |
|
Tk_Item *itemPtr, double *pointPtr)); |
| 170 |
|
static void ScaleRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
| 171 |
|
Tk_Item *itemPtr, double originX, double originY, |
| 172 |
|
double scaleX, double scaleY)); |
| 173 |
|
static void TranslateRectOval _ANSI_ARGS_((Tk_Canvas canvas, |
| 174 |
|
Tk_Item *itemPtr, double deltaX, double deltaY)); |
| 175 |
|
|
| 176 |
|
/* |
| 177 |
|
* The structures below defines the rectangle and oval item types |
| 178 |
|
* by means of procedures that can be invoked by generic item code. |
| 179 |
|
*/ |
| 180 |
|
|
| 181 |
|
Tk_ItemType tkRectangleType = { |
| 182 |
|
"rectangle", /* name */ |
| 183 |
|
sizeof(RectOvalItem), /* itemSize */ |
| 184 |
|
CreateRectOval, /* createProc */ |
| 185 |
|
configSpecs, /* configSpecs */ |
| 186 |
|
ConfigureRectOval, /* configureProc */ |
| 187 |
|
RectOvalCoords, /* coordProc */ |
| 188 |
|
DeleteRectOval, /* deleteProc */ |
| 189 |
|
DisplayRectOval, /* displayProc */ |
| 190 |
|
TK_CONFIG_OBJS, /* flags */ |
| 191 |
|
RectToPoint, /* pointProc */ |
| 192 |
|
RectToArea, /* areaProc */ |
| 193 |
|
RectOvalToPostscript, /* postscriptProc */ |
| 194 |
|
ScaleRectOval, /* scaleProc */ |
| 195 |
|
TranslateRectOval, /* translateProc */ |
| 196 |
|
(Tk_ItemIndexProc *) NULL, /* indexProc */ |
| 197 |
|
(Tk_ItemCursorProc *) NULL, /* icursorProc */ |
| 198 |
|
(Tk_ItemSelectionProc *) NULL, /* selectionProc */ |
| 199 |
|
(Tk_ItemInsertProc *) NULL, /* insertProc */ |
| 200 |
|
(Tk_ItemDCharsProc *) NULL, /* dTextProc */ |
| 201 |
|
(Tk_ItemType *) NULL, /* nextPtr */ |
| 202 |
|
}; |
| 203 |
|
|
| 204 |
|
Tk_ItemType tkOvalType = { |
| 205 |
|
"oval", /* name */ |
| 206 |
|
sizeof(RectOvalItem), /* itemSize */ |
| 207 |
|
CreateRectOval, /* createProc */ |
| 208 |
|
configSpecs, /* configSpecs */ |
| 209 |
|
ConfigureRectOval, /* configureProc */ |
| 210 |
|
RectOvalCoords, /* coordProc */ |
| 211 |
|
DeleteRectOval, /* deleteProc */ |
| 212 |
|
DisplayRectOval, /* displayProc */ |
| 213 |
|
TK_CONFIG_OBJS, /* flags */ |
| 214 |
|
OvalToPoint, /* pointProc */ |
| 215 |
|
OvalToArea, /* areaProc */ |
| 216 |
|
RectOvalToPostscript, /* postscriptProc */ |
| 217 |
|
ScaleRectOval, /* scaleProc */ |
| 218 |
|
TranslateRectOval, /* translateProc */ |
| 219 |
|
(Tk_ItemIndexProc *) NULL, /* indexProc */ |
| 220 |
|
(Tk_ItemCursorProc *) NULL, /* cursorProc */ |
| 221 |
|
(Tk_ItemSelectionProc *) NULL, /* selectionProc */ |
| 222 |
|
(Tk_ItemInsertProc *) NULL, /* insertProc */ |
| 223 |
|
(Tk_ItemDCharsProc *) NULL, /* dTextProc */ |
| 224 |
|
(Tk_ItemType *) NULL, /* nextPtr */ |
| 225 |
|
}; |
| 226 |
|
|
| 227 |
|
/* |
| 228 |
|
*-------------------------------------------------------------- |
| 229 |
|
* |
| 230 |
|
* CreateRectOval -- |
| 231 |
|
* |
| 232 |
|
* This procedure is invoked to create a new rectangle |
| 233 |
|
* or oval item in a canvas. |
| 234 |
|
* |
| 235 |
|
* Results: |
| 236 |
|
* A standard Tcl return value. If an error occurred in |
| 237 |
|
* creating the item, then an error message is left in |
| 238 |
|
* the interp's result; in this case itemPtr is left uninitialized, |
| 239 |
|
* so it can be safely freed by the caller. |
| 240 |
|
* |
| 241 |
|
* Side effects: |
| 242 |
|
* A new rectangle or oval item is created. |
| 243 |
|
* |
| 244 |
|
*-------------------------------------------------------------- |
| 245 |
|
*/ |
| 246 |
|
|
| 247 |
|
static int |
| 248 |
|
CreateRectOval(interp, canvas, itemPtr, argc, argv) |
| 249 |
|
Tcl_Interp *interp; /* For error reporting. */ |
| 250 |
|
Tk_Canvas canvas; /* Canvas to hold new item. */ |
| 251 |
|
Tk_Item *itemPtr; /* Record to hold new item; header |
| 252 |
|
* has been initialized by caller. */ |
| 253 |
|
int argc; /* Number of arguments in argv. */ |
| 254 |
|
Tcl_Obj *CONST argv[]; /* Arguments describing rectangle. */ |
| 255 |
|
{ |
| 256 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 257 |
|
int i; |
| 258 |
|
|
| 259 |
|
|
| 260 |
|
if (argc==1) { |
| 261 |
|
i = 1; |
| 262 |
|
} else { |
| 263 |
|
char *arg = Tcl_GetStringFromObj(argv[1], NULL); |
| 264 |
|
if ((argc>1) && (arg[0] == '-') |
| 265 |
|
&& (arg[1] >= 'a') && (arg[1] <= 'z')) { |
| 266 |
|
i = 1; |
| 267 |
|
} else { |
| 268 |
|
i = 4; |
| 269 |
|
} |
| 270 |
|
} |
| 271 |
|
|
| 272 |
|
if (argc < i) { |
| 273 |
|
Tcl_AppendResult(interp, "wrong # args: should be \"", |
| 274 |
|
Tk_PathName(Tk_CanvasTkwin(canvas)), " create ", |
| 275 |
|
itemPtr->typePtr->name, " x1 y1 x2 y2 ?options?\"", |
| 276 |
|
(char *) NULL); |
| 277 |
|
return TCL_ERROR; |
| 278 |
|
} |
| 279 |
|
|
| 280 |
|
/* |
| 281 |
|
* Carry out initialization that is needed in order to clean |
| 282 |
|
* up after errors during the the remainder of this procedure. |
| 283 |
|
*/ |
| 284 |
|
|
| 285 |
|
Tk_CreateOutline(&(rectOvalPtr->outline)); |
| 286 |
|
rectOvalPtr->tsoffset.flags = 0; |
| 287 |
|
rectOvalPtr->tsoffset.xoffset = 0; |
| 288 |
|
rectOvalPtr->tsoffset.yoffset = 0; |
| 289 |
|
rectOvalPtr->fillColor = NULL; |
| 290 |
|
rectOvalPtr->activeFillColor = NULL; |
| 291 |
|
rectOvalPtr->disabledFillColor = NULL; |
| 292 |
|
rectOvalPtr->fillStipple = None; |
| 293 |
|
rectOvalPtr->activeFillStipple = None; |
| 294 |
|
rectOvalPtr->disabledFillStipple = None; |
| 295 |
|
rectOvalPtr->fillGC = None; |
| 296 |
|
|
| 297 |
|
/* |
| 298 |
|
* Process the arguments to fill in the item record. |
| 299 |
|
*/ |
| 300 |
|
|
| 301 |
|
if ((RectOvalCoords(interp, canvas, itemPtr, i, argv) != TCL_OK)) { |
| 302 |
|
goto error; |
| 303 |
|
} |
| 304 |
|
if (ConfigureRectOval(interp, canvas, itemPtr, argc-i, argv+i, 0) |
| 305 |
|
== TCL_OK) { |
| 306 |
|
return TCL_OK; |
| 307 |
|
} |
| 308 |
|
|
| 309 |
|
error: |
| 310 |
|
DeleteRectOval(canvas, itemPtr, Tk_Display(Tk_CanvasTkwin(canvas))); |
| 311 |
|
return TCL_ERROR; |
| 312 |
|
} |
| 313 |
|
|
| 314 |
|
/* |
| 315 |
|
*-------------------------------------------------------------- |
| 316 |
|
* |
| 317 |
|
* RectOvalCoords -- |
| 318 |
|
* |
| 319 |
|
* This procedure is invoked to process the "coords" widget |
| 320 |
|
* command on rectangles and ovals. See the user documentation |
| 321 |
|
* for details on what it does. |
| 322 |
|
* |
| 323 |
|
* Results: |
| 324 |
|
* Returns TCL_OK or TCL_ERROR, and sets the interp's result. |
| 325 |
|
* |
| 326 |
|
* Side effects: |
| 327 |
|
* The coordinates for the given item may be changed. |
| 328 |
|
* |
| 329 |
|
*-------------------------------------------------------------- |
| 330 |
|
*/ |
| 331 |
|
|
| 332 |
|
static int |
| 333 |
|
RectOvalCoords(interp, canvas, itemPtr, argc, argv) |
| 334 |
|
Tcl_Interp *interp; /* Used for error reporting. */ |
| 335 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 336 |
|
Tk_Item *itemPtr; /* Item whose coordinates are to be |
| 337 |
|
* read or modified. */ |
| 338 |
|
int argc; /* Number of coordinates supplied in |
| 339 |
|
* argv. */ |
| 340 |
|
Tcl_Obj *CONST argv[]; /* Array of coordinates: x1, y1, |
| 341 |
|
* x2, y2, ... */ |
| 342 |
|
{ |
| 343 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 344 |
|
|
| 345 |
|
if (argc == 0) { |
| 346 |
|
Tcl_Obj *obj = Tcl_NewObj(); |
| 347 |
|
Tcl_Obj *subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[0]); |
| 348 |
|
Tcl_ListObjAppendElement(interp, obj, subobj); |
| 349 |
|
subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[1]); |
| 350 |
|
Tcl_ListObjAppendElement(interp, obj, subobj); |
| 351 |
|
subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[2]); |
| 352 |
|
Tcl_ListObjAppendElement(interp, obj, subobj); |
| 353 |
|
subobj = Tcl_NewDoubleObj(rectOvalPtr->bbox[3]); |
| 354 |
|
Tcl_ListObjAppendElement(interp, obj, subobj); |
| 355 |
|
Tcl_SetObjResult(interp, obj); |
| 356 |
|
} else if ((argc == 1)||(argc == 4)) { |
| 357 |
|
if (argc==1) { |
| 358 |
|
if (Tcl_ListObjGetElements(interp, argv[0], &argc, |
| 359 |
|
(Tcl_Obj ***) &argv) != TCL_OK) { |
| 360 |
|
return TCL_ERROR; |
| 361 |
|
} else if (argc != 4) { |
| 362 |
|
char buf[64 + TCL_INTEGER_SPACE]; |
| 363 |
|
|
| 364 |
|
sprintf(buf, "wrong # coordinates: expected 0 or 4, got %d", argc); |
| 365 |
|
Tcl_SetResult(interp, buf, TCL_VOLATILE); |
| 366 |
|
return TCL_ERROR; |
| 367 |
|
} |
| 368 |
|
} |
| 369 |
|
if ((Tk_CanvasGetCoordFromObj(interp, canvas, argv[0], |
| 370 |
|
&rectOvalPtr->bbox[0]) != TCL_OK) |
| 371 |
|
|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[1], |
| 372 |
|
&rectOvalPtr->bbox[1]) != TCL_OK) |
| 373 |
|
|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[2], |
| 374 |
|
&rectOvalPtr->bbox[2]) != TCL_OK) |
| 375 |
|
|| (Tk_CanvasGetCoordFromObj(interp, canvas, argv[3], |
| 376 |
|
&rectOvalPtr->bbox[3]) != TCL_OK)) { |
| 377 |
|
return TCL_ERROR; |
| 378 |
|
} |
| 379 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
| 380 |
|
} else { |
| 381 |
|
char buf[64 + TCL_INTEGER_SPACE]; |
| 382 |
|
|
| 383 |
|
sprintf(buf, "wrong # coordinates: expected 0 or 4, got %d", argc); |
| 384 |
|
Tcl_SetResult(interp, buf, TCL_VOLATILE); |
| 385 |
|
return TCL_ERROR; |
| 386 |
|
} |
| 387 |
|
return TCL_OK; |
| 388 |
|
} |
| 389 |
|
|
| 390 |
|
/* |
| 391 |
|
*-------------------------------------------------------------- |
| 392 |
|
* |
| 393 |
|
* ConfigureRectOval -- |
| 394 |
|
* |
| 395 |
|
* This procedure is invoked to configure various aspects |
| 396 |
|
* of a rectangle or oval item, such as its border and |
| 397 |
|
* background colors. |
| 398 |
|
* |
| 399 |
|
* Results: |
| 400 |
|
* A standard Tcl result code. If an error occurs, then |
| 401 |
|
* an error message is left in the interp's result. |
| 402 |
|
* |
| 403 |
|
* Side effects: |
| 404 |
|
* Configuration information, such as colors and stipple |
| 405 |
|
* patterns, may be set for itemPtr. |
| 406 |
|
* |
| 407 |
|
*-------------------------------------------------------------- |
| 408 |
|
*/ |
| 409 |
|
|
| 410 |
|
static int |
| 411 |
|
ConfigureRectOval(interp, canvas, itemPtr, argc, argv, flags) |
| 412 |
|
Tcl_Interp *interp; /* Used for error reporting. */ |
| 413 |
|
Tk_Canvas canvas; /* Canvas containing itemPtr. */ |
| 414 |
|
Tk_Item *itemPtr; /* Rectangle item to reconfigure. */ |
| 415 |
|
int argc; /* Number of elements in argv. */ |
| 416 |
|
Tcl_Obj *CONST argv[]; /* Arguments describing things to configure. */ |
| 417 |
|
int flags; /* Flags to pass to Tk_ConfigureWidget. */ |
| 418 |
|
{ |
| 419 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 420 |
|
XGCValues gcValues; |
| 421 |
|
GC newGC; |
| 422 |
|
unsigned long mask; |
| 423 |
|
Tk_Window tkwin; |
| 424 |
|
Tk_TSOffset *tsoffset; |
| 425 |
|
XColor *color; |
| 426 |
|
Pixmap stipple; |
| 427 |
|
Tk_State state; |
| 428 |
|
|
| 429 |
|
tkwin = Tk_CanvasTkwin(canvas); |
| 430 |
|
|
| 431 |
|
if (Tk_ConfigureWidget(interp, tkwin, configSpecs, argc, (char **) argv, |
| 432 |
|
(char *) rectOvalPtr, flags|TK_CONFIG_OBJS) != TCL_OK) { |
| 433 |
|
return TCL_ERROR; |
| 434 |
|
} |
| 435 |
|
state = itemPtr->state; |
| 436 |
|
|
| 437 |
|
/* |
| 438 |
|
* A few of the options require additional processing, such as |
| 439 |
|
* graphics contexts. |
| 440 |
|
*/ |
| 441 |
|
|
| 442 |
|
if (rectOvalPtr->outline.activeWidth > rectOvalPtr->outline.width || |
| 443 |
|
rectOvalPtr->outline.activeDash.number != 0 || |
| 444 |
|
rectOvalPtr->outline.activeColor != NULL || |
| 445 |
|
rectOvalPtr->outline.activeStipple != None || |
| 446 |
|
rectOvalPtr->activeFillColor != NULL || |
| 447 |
|
rectOvalPtr->activeFillStipple != None) { |
| 448 |
|
itemPtr->redraw_flags |= TK_ITEM_STATE_DEPENDANT; |
| 449 |
|
} else { |
| 450 |
|
itemPtr->redraw_flags &= ~TK_ITEM_STATE_DEPENDANT; |
| 451 |
|
} |
| 452 |
|
|
| 453 |
|
tsoffset = &rectOvalPtr->outline.tsoffset; |
| 454 |
|
flags = tsoffset->flags; |
| 455 |
|
if (flags & TK_OFFSET_LEFT) { |
| 456 |
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[0] + 0.5); |
| 457 |
|
} else if (flags & TK_OFFSET_CENTER) { |
| 458 |
|
tsoffset->xoffset = (int) ((rectOvalPtr->bbox[0]+rectOvalPtr->bbox[2]+1)/2); |
| 459 |
|
} else if (flags & TK_OFFSET_RIGHT) { |
| 460 |
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
| 461 |
|
} |
| 462 |
|
if (flags & TK_OFFSET_TOP) { |
| 463 |
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[1] + 0.5); |
| 464 |
|
} else if (flags & TK_OFFSET_MIDDLE) { |
| 465 |
|
tsoffset->yoffset = (int) ((rectOvalPtr->bbox[1]+rectOvalPtr->bbox[3]+1)/2); |
| 466 |
|
} else if (flags & TK_OFFSET_BOTTOM) { |
| 467 |
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
| 468 |
|
} |
| 469 |
|
|
| 470 |
|
/* |
| 471 |
|
* Configure the outline graphics context. If mask is non-zero, |
| 472 |
|
* the gc has changed and must be reallocated, provided that the |
| 473 |
|
* new settings specify a valid outline (non-zero width and non-NULL |
| 474 |
|
* color) |
| 475 |
|
*/ |
| 476 |
|
|
| 477 |
|
mask = Tk_ConfigOutlineGC(&gcValues, canvas, itemPtr, |
| 478 |
|
&(rectOvalPtr->outline)); |
| 479 |
|
if (mask && \ |
| 480 |
|
rectOvalPtr->outline.width != 0 && \ |
| 481 |
|
rectOvalPtr->outline.color != NULL) { |
| 482 |
|
gcValues.cap_style = CapProjecting; |
| 483 |
|
mask |= GCCapStyle; |
| 484 |
|
newGC = Tk_GetGC(tkwin, mask, &gcValues); |
| 485 |
|
} else { |
| 486 |
|
newGC = None; |
| 487 |
|
} |
| 488 |
|
if (rectOvalPtr->outline.gc != None) { |
| 489 |
|
Tk_FreeGC(Tk_Display(tkwin), rectOvalPtr->outline.gc); |
| 490 |
|
} |
| 491 |
|
rectOvalPtr->outline.gc = newGC; |
| 492 |
|
|
| 493 |
|
if(state == TK_STATE_NULL) { |
| 494 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 495 |
|
} |
| 496 |
|
if (state==TK_STATE_HIDDEN) { |
| 497 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
| 498 |
|
return TCL_OK; |
| 499 |
|
} |
| 500 |
|
|
| 501 |
|
color = rectOvalPtr->fillColor; |
| 502 |
|
stipple = rectOvalPtr->fillStipple; |
| 503 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 504 |
|
if (rectOvalPtr->activeFillColor!=NULL) { |
| 505 |
|
color = rectOvalPtr->activeFillColor; |
| 506 |
|
} |
| 507 |
|
if (rectOvalPtr->activeFillStipple!=None) { |
| 508 |
|
stipple = rectOvalPtr->activeFillStipple; |
| 509 |
|
} |
| 510 |
|
} else if (state==TK_STATE_DISABLED) { |
| 511 |
|
if (rectOvalPtr->disabledFillColor!=NULL) { |
| 512 |
|
color = rectOvalPtr->disabledFillColor; |
| 513 |
|
} |
| 514 |
|
if (rectOvalPtr->disabledFillStipple!=None) { |
| 515 |
|
stipple = rectOvalPtr->disabledFillStipple; |
| 516 |
|
} |
| 517 |
|
} |
| 518 |
|
|
| 519 |
|
if (color == NULL) { |
| 520 |
|
newGC = None; |
| 521 |
|
} else { |
| 522 |
|
gcValues.foreground = color->pixel; |
| 523 |
|
if (stipple != None) { |
| 524 |
|
gcValues.stipple = stipple; |
| 525 |
|
gcValues.fill_style = FillStippled; |
| 526 |
|
mask = GCForeground|GCStipple|GCFillStyle; |
| 527 |
|
} else { |
| 528 |
|
mask = GCForeground; |
| 529 |
|
} |
| 530 |
|
newGC = Tk_GetGC(tkwin, mask, &gcValues); |
| 531 |
|
} |
| 532 |
|
if (rectOvalPtr->fillGC != None) { |
| 533 |
|
Tk_FreeGC(Tk_Display(tkwin), rectOvalPtr->fillGC); |
| 534 |
|
} |
| 535 |
|
rectOvalPtr->fillGC = newGC; |
| 536 |
|
|
| 537 |
|
tsoffset = &rectOvalPtr->tsoffset; |
| 538 |
|
flags = tsoffset->flags; |
| 539 |
|
if (flags & TK_OFFSET_LEFT) { |
| 540 |
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[0] + 0.5); |
| 541 |
|
} else if (flags & TK_OFFSET_CENTER) { |
| 542 |
|
tsoffset->xoffset = (int) ((rectOvalPtr->bbox[0]+rectOvalPtr->bbox[2]+1)/2); |
| 543 |
|
} else if (flags & TK_OFFSET_RIGHT) { |
| 544 |
|
tsoffset->xoffset = (int) (rectOvalPtr->bbox[2] + 0.5); |
| 545 |
|
} |
| 546 |
|
if (flags & TK_OFFSET_TOP) { |
| 547 |
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[1] + 0.5); |
| 548 |
|
} else if (flags & TK_OFFSET_MIDDLE) { |
| 549 |
|
tsoffset->yoffset = (int) ((rectOvalPtr->bbox[1]+rectOvalPtr->bbox[3]+1)/2); |
| 550 |
|
} else if (flags & TK_OFFSET_BOTTOM) { |
| 551 |
|
tsoffset->yoffset = (int) (rectOvalPtr->bbox[3] + 0.5); |
| 552 |
|
} |
| 553 |
|
|
| 554 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
| 555 |
|
|
| 556 |
|
return TCL_OK; |
| 557 |
|
} |
| 558 |
|
|
| 559 |
|
/* |
| 560 |
|
*-------------------------------------------------------------- |
| 561 |
|
* |
| 562 |
|
* DeleteRectOval -- |
| 563 |
|
* |
| 564 |
|
* This procedure is called to clean up the data structure |
| 565 |
|
* associated with a rectangle or oval item. |
| 566 |
|
* |
| 567 |
|
* Results: |
| 568 |
|
* None. |
| 569 |
|
* |
| 570 |
|
* Side effects: |
| 571 |
|
* Resources associated with itemPtr are released. |
| 572 |
|
* |
| 573 |
|
*-------------------------------------------------------------- |
| 574 |
|
*/ |
| 575 |
|
|
| 576 |
|
static void |
| 577 |
|
DeleteRectOval(canvas, itemPtr, display) |
| 578 |
|
Tk_Canvas canvas; /* Info about overall widget. */ |
| 579 |
|
Tk_Item *itemPtr; /* Item that is being deleted. */ |
| 580 |
|
Display *display; /* Display containing window for |
| 581 |
|
* canvas. */ |
| 582 |
|
{ |
| 583 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 584 |
|
|
| 585 |
|
Tk_DeleteOutline(display, &(rectOvalPtr->outline)); |
| 586 |
|
if (rectOvalPtr->fillColor != NULL) { |
| 587 |
|
Tk_FreeColor(rectOvalPtr->fillColor); |
| 588 |
|
} |
| 589 |
|
if (rectOvalPtr->activeFillColor != NULL) { |
| 590 |
|
Tk_FreeColor(rectOvalPtr->activeFillColor); |
| 591 |
|
} |
| 592 |
|
if (rectOvalPtr->disabledFillColor != NULL) { |
| 593 |
|
Tk_FreeColor(rectOvalPtr->disabledFillColor); |
| 594 |
|
} |
| 595 |
|
if (rectOvalPtr->fillStipple != None) { |
| 596 |
|
Tk_FreeBitmap(display, rectOvalPtr->fillStipple); |
| 597 |
|
} |
| 598 |
|
if (rectOvalPtr->activeFillStipple != None) { |
| 599 |
|
Tk_FreeBitmap(display, rectOvalPtr->activeFillStipple); |
| 600 |
|
} |
| 601 |
|
if (rectOvalPtr->disabledFillStipple != None) { |
| 602 |
|
Tk_FreeBitmap(display, rectOvalPtr->disabledFillStipple); |
| 603 |
|
} |
| 604 |
|
if (rectOvalPtr->fillGC != None) { |
| 605 |
|
Tk_FreeGC(display, rectOvalPtr->fillGC); |
| 606 |
|
} |
| 607 |
|
} |
| 608 |
|
|
| 609 |
|
/* |
| 610 |
|
*-------------------------------------------------------------- |
| 611 |
|
* |
| 612 |
|
* ComputeRectOvalBbox -- |
| 613 |
|
* |
| 614 |
|
* This procedure is invoked to compute the bounding box of |
| 615 |
|
* all the pixels that may be drawn as part of a rectangle |
| 616 |
|
* or oval. |
| 617 |
|
* |
| 618 |
|
* Results: |
| 619 |
|
* None. |
| 620 |
|
* |
| 621 |
|
* Side effects: |
| 622 |
|
* The fields x1, y1, x2, and y2 are updated in the header |
| 623 |
|
* for itemPtr. |
| 624 |
|
* |
| 625 |
|
*-------------------------------------------------------------- |
| 626 |
|
*/ |
| 627 |
|
|
| 628 |
|
/* ARGSUSED */ |
| 629 |
|
static void |
| 630 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr) |
| 631 |
|
Tk_Canvas canvas; /* Canvas that contains item. */ |
| 632 |
|
RectOvalItem *rectOvalPtr; /* Item whose bbox is to be |
| 633 |
|
* recomputed. */ |
| 634 |
|
{ |
| 635 |
|
int bloat, tmp; |
| 636 |
|
double dtmp, width; |
| 637 |
|
Tk_State state = rectOvalPtr->header.state; |
| 638 |
|
|
| 639 |
|
if(state == TK_STATE_NULL) { |
| 640 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 641 |
|
} |
| 642 |
|
|
| 643 |
|
width = rectOvalPtr->outline.width; |
| 644 |
|
if (state==TK_STATE_HIDDEN) { |
| 645 |
|
rectOvalPtr->header.x1 = rectOvalPtr->header.y1 = |
| 646 |
|
rectOvalPtr->header.x2 = rectOvalPtr->header.y2 = -1; |
| 647 |
|
return; |
| 648 |
|
} |
| 649 |
|
if (((TkCanvas *)canvas)->currentItemPtr == (Tk_Item *)rectOvalPtr) { |
| 650 |
|
if (rectOvalPtr->outline.activeWidth>width) { |
| 651 |
|
width = rectOvalPtr->outline.activeWidth; |
| 652 |
|
} |
| 653 |
|
} else if (state==TK_STATE_DISABLED) { |
| 654 |
|
if (rectOvalPtr->outline.disabledWidth>0) { |
| 655 |
|
width = rectOvalPtr->outline.disabledWidth; |
| 656 |
|
} |
| 657 |
|
} |
| 658 |
|
|
| 659 |
|
/* |
| 660 |
|
* Make sure that the first coordinates are the lowest ones. |
| 661 |
|
*/ |
| 662 |
|
|
| 663 |
|
if (rectOvalPtr->bbox[1] > rectOvalPtr->bbox[3]) { |
| 664 |
|
double tmp; |
| 665 |
|
tmp = rectOvalPtr->bbox[3]; |
| 666 |
|
rectOvalPtr->bbox[3] = rectOvalPtr->bbox[1]; |
| 667 |
|
rectOvalPtr->bbox[1] = tmp; |
| 668 |
|
} |
| 669 |
|
if (rectOvalPtr->bbox[0] > rectOvalPtr->bbox[2]) { |
| 670 |
|
double tmp; |
| 671 |
|
tmp = rectOvalPtr->bbox[2]; |
| 672 |
|
rectOvalPtr->bbox[2] = rectOvalPtr->bbox[0]; |
| 673 |
|
rectOvalPtr->bbox[0] = tmp; |
| 674 |
|
} |
| 675 |
|
|
| 676 |
|
if (rectOvalPtr->outline.gc == None) { |
| 677 |
|
/* |
| 678 |
|
* The Win32 switch was added for 8.3 to solve a problem |
| 679 |
|
* with ovals leaving traces on bottom and right of 1 pixel. |
| 680 |
|
* This may not be the correct place to solve it, but it works. |
| 681 |
|
*/ |
| 682 |
|
#ifdef __WIN32__ |
| 683 |
|
bloat = 1; |
| 684 |
|
#else |
| 685 |
|
bloat = 0; |
| 686 |
|
#endif |
| 687 |
|
} else { |
| 688 |
|
bloat = (int) (width+1)/2; |
| 689 |
|
} |
| 690 |
|
|
| 691 |
|
/* |
| 692 |
|
* Special note: the rectangle is always drawn at least 1x1 in |
| 693 |
|
* size, so round up the upper coordinates to be at least 1 unit |
| 694 |
|
* greater than the lower ones. |
| 695 |
|
*/ |
| 696 |
|
|
| 697 |
|
tmp = (int) ((rectOvalPtr->bbox[0] >= 0) ? rectOvalPtr->bbox[0] + .5 |
| 698 |
|
: rectOvalPtr->bbox[0] - .5); |
| 699 |
|
rectOvalPtr->header.x1 = tmp - bloat; |
| 700 |
|
tmp = (int) ((rectOvalPtr->bbox[1] >= 0) ? rectOvalPtr->bbox[1] + .5 |
| 701 |
|
: rectOvalPtr->bbox[1] - .5); |
| 702 |
|
rectOvalPtr->header.y1 = tmp - bloat; |
| 703 |
|
dtmp = rectOvalPtr->bbox[2]; |
| 704 |
|
if (dtmp < (rectOvalPtr->bbox[0] + 1)) { |
| 705 |
|
dtmp = rectOvalPtr->bbox[0] + 1; |
| 706 |
|
} |
| 707 |
|
tmp = (int) ((dtmp >= 0) ? dtmp + .5 : dtmp - .5); |
| 708 |
|
rectOvalPtr->header.x2 = tmp + bloat; |
| 709 |
|
dtmp = rectOvalPtr->bbox[3]; |
| 710 |
|
if (dtmp < (rectOvalPtr->bbox[1] + 1)) { |
| 711 |
|
dtmp = rectOvalPtr->bbox[1] + 1; |
| 712 |
|
} |
| 713 |
|
tmp = (int) ((dtmp >= 0) ? dtmp + .5 : dtmp - .5); |
| 714 |
|
rectOvalPtr->header.y2 = tmp + bloat; |
| 715 |
|
} |
| 716 |
|
|
| 717 |
|
/* |
| 718 |
|
*-------------------------------------------------------------- |
| 719 |
|
* |
| 720 |
|
* DisplayRectOval -- |
| 721 |
|
* |
| 722 |
|
* This procedure is invoked to draw a rectangle or oval |
| 723 |
|
* item in a given drawable. |
| 724 |
|
* |
| 725 |
|
* Results: |
| 726 |
|
* None. |
| 727 |
|
* |
| 728 |
|
* Side effects: |
| 729 |
|
* ItemPtr is drawn in drawable using the transformation |
| 730 |
|
* information in canvas. |
| 731 |
|
* |
| 732 |
|
*-------------------------------------------------------------- |
| 733 |
|
*/ |
| 734 |
|
|
| 735 |
|
static void |
| 736 |
|
DisplayRectOval(canvas, itemPtr, display, drawable, x, y, width, height) |
| 737 |
|
Tk_Canvas canvas; /* Canvas that contains item. */ |
| 738 |
|
Tk_Item *itemPtr; /* Item to be displayed. */ |
| 739 |
|
Display *display; /* Display on which to draw item. */ |
| 740 |
|
Drawable drawable; /* Pixmap or window in which to draw |
| 741 |
|
* item. */ |
| 742 |
|
int x, y, width, height; /* Describes region of canvas that |
| 743 |
|
* must be redisplayed (not used). */ |
| 744 |
|
{ |
| 745 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 746 |
|
short x1, y1, x2, y2; |
| 747 |
|
Pixmap fillStipple; |
| 748 |
|
Tk_State state = itemPtr->state; |
| 749 |
|
|
| 750 |
|
/* |
| 751 |
|
* Compute the screen coordinates of the bounding box for the item. |
| 752 |
|
* Make sure that the bbox is at least one pixel large, since some |
| 753 |
|
* X servers will die if it isn't. |
| 754 |
|
*/ |
| 755 |
|
|
| 756 |
|
Tk_CanvasDrawableCoords(canvas, rectOvalPtr->bbox[0], rectOvalPtr->bbox[1], |
| 757 |
|
&x1, &y1); |
| 758 |
|
Tk_CanvasDrawableCoords(canvas, rectOvalPtr->bbox[2], rectOvalPtr->bbox[3], |
| 759 |
|
&x2, &y2); |
| 760 |
|
if (x2 <= x1) { |
| 761 |
|
x2 = x1+1; |
| 762 |
|
} |
| 763 |
|
if (y2 <= y1) { |
| 764 |
|
y2 = y1+1; |
| 765 |
|
} |
| 766 |
|
|
| 767 |
|
/* |
| 768 |
|
* Display filled part first (if wanted), then outline. If we're |
| 769 |
|
* stippling, then modify the stipple offset in the GC. Be sure to |
| 770 |
|
* reset the offset when done, since the GC is supposed to be |
| 771 |
|
* read-only. |
| 772 |
|
*/ |
| 773 |
|
|
| 774 |
|
if(state == TK_STATE_NULL) { |
| 775 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 776 |
|
} |
| 777 |
|
fillStipple = rectOvalPtr->fillStipple; |
| 778 |
|
if (((TkCanvas *)canvas)->currentItemPtr == (Tk_Item *)rectOvalPtr) { |
| 779 |
|
if (rectOvalPtr->activeFillStipple!=None) { |
| 780 |
|
fillStipple = rectOvalPtr->activeFillStipple; |
| 781 |
|
} |
| 782 |
|
} else if (state==TK_STATE_DISABLED) { |
| 783 |
|
if (rectOvalPtr->disabledFillStipple!=None) { |
| 784 |
|
fillStipple = rectOvalPtr->disabledFillStipple; |
| 785 |
|
} |
| 786 |
|
} |
| 787 |
|
|
| 788 |
|
if (rectOvalPtr->fillGC != None) { |
| 789 |
|
if (fillStipple != None) { |
| 790 |
|
Tk_TSOffset *tsoffset; |
| 791 |
|
int w=0; int h=0; |
| 792 |
|
tsoffset = &rectOvalPtr->tsoffset; |
| 793 |
|
if (tsoffset) { |
| 794 |
|
int flags = tsoffset->flags; |
| 795 |
|
if (flags & (TK_OFFSET_CENTER|TK_OFFSET_MIDDLE)) { |
| 796 |
|
Tk_SizeOfBitmap(display, fillStipple, &w, &h); |
| 797 |
|
if (flags & TK_OFFSET_CENTER) { |
| 798 |
|
w /= 2; |
| 799 |
|
} else { |
| 800 |
|
w = 0; |
| 801 |
|
} |
| 802 |
|
if (flags & TK_OFFSET_MIDDLE) { |
| 803 |
|
h /= 2; |
| 804 |
|
} else { |
| 805 |
|
h = 0; |
| 806 |
|
} |
| 807 |
|
} |
| 808 |
|
tsoffset->xoffset -= w; |
| 809 |
|
tsoffset->yoffset -= h; |
| 810 |
|
} |
| 811 |
|
Tk_CanvasSetOffset(canvas, rectOvalPtr->fillGC, tsoffset); |
| 812 |
|
if (tsoffset) { |
| 813 |
|
tsoffset->xoffset += w; |
| 814 |
|
tsoffset->yoffset += h; |
| 815 |
|
} |
| 816 |
|
} |
| 817 |
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
| 818 |
|
XFillRectangle(display, drawable, rectOvalPtr->fillGC, |
| 819 |
|
x1, y1, (unsigned int) (x2-x1), (unsigned int) (y2-y1)); |
| 820 |
|
} else { |
| 821 |
|
XFillArc(display, drawable, rectOvalPtr->fillGC, |
| 822 |
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1), |
| 823 |
|
0, 360*64); |
| 824 |
|
} |
| 825 |
|
if (fillStipple != None) { |
| 826 |
|
XSetTSOrigin(display, rectOvalPtr->fillGC, 0, 0); |
| 827 |
|
} |
| 828 |
|
} |
| 829 |
|
if (rectOvalPtr->outline.gc != None) { |
| 830 |
|
Tk_ChangeOutlineGC(canvas, itemPtr, &(rectOvalPtr->outline)); |
| 831 |
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
| 832 |
|
XDrawRectangle(display, drawable, rectOvalPtr->outline.gc, |
| 833 |
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1)); |
| 834 |
|
} else { |
| 835 |
|
XDrawArc(display, drawable, rectOvalPtr->outline.gc, |
| 836 |
|
x1, y1, (unsigned) (x2-x1), (unsigned) (y2-y1), 0, 360*64); |
| 837 |
|
} |
| 838 |
|
Tk_ResetOutlineGC(canvas, itemPtr, &(rectOvalPtr->outline)); |
| 839 |
|
} |
| 840 |
|
} |
| 841 |
|
|
| 842 |
|
/* |
| 843 |
|
*-------------------------------------------------------------- |
| 844 |
|
* |
| 845 |
|
* RectToPoint -- |
| 846 |
|
* |
| 847 |
|
* Computes the distance from a given point to a given |
| 848 |
|
* rectangle, in canvas units. |
| 849 |
|
* |
| 850 |
|
* Results: |
| 851 |
|
* The return value is 0 if the point whose x and y coordinates |
| 852 |
|
* are coordPtr[0] and coordPtr[1] is inside the rectangle. If the |
| 853 |
|
* point isn't inside the rectangle then the return value is the |
| 854 |
|
* distance from the point to the rectangle. If itemPtr is filled, |
| 855 |
|
* then anywhere in the interior is considered "inside"; if |
| 856 |
|
* itemPtr isn't filled, then "inside" means only the area |
| 857 |
|
* occupied by the outline. |
| 858 |
|
* |
| 859 |
|
* Side effects: |
| 860 |
|
* None. |
| 861 |
|
* |
| 862 |
|
*-------------------------------------------------------------- |
| 863 |
|
*/ |
| 864 |
|
|
| 865 |
|
/* ARGSUSED */ |
| 866 |
|
static double |
| 867 |
|
RectToPoint(canvas, itemPtr, pointPtr) |
| 868 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 869 |
|
Tk_Item *itemPtr; /* Item to check against point. */ |
| 870 |
|
double *pointPtr; /* Pointer to x and y coordinates. */ |
| 871 |
|
{ |
| 872 |
|
RectOvalItem *rectPtr = (RectOvalItem *) itemPtr; |
| 873 |
|
double xDiff, yDiff, x1, y1, x2, y2, inc, tmp; |
| 874 |
|
double width; |
| 875 |
|
Tk_State state = itemPtr->state; |
| 876 |
|
|
| 877 |
|
if(state == TK_STATE_NULL) { |
| 878 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 879 |
|
} |
| 880 |
|
|
| 881 |
|
width = rectPtr->outline.width; |
| 882 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 883 |
|
if (rectPtr->outline.activeWidth>width) { |
| 884 |
|
width = rectPtr->outline.activeWidth; |
| 885 |
|
} |
| 886 |
|
} else if (state==TK_STATE_DISABLED) { |
| 887 |
|
if (rectPtr->outline.disabledWidth>0) { |
| 888 |
|
width = rectPtr->outline.disabledWidth; |
| 889 |
|
} |
| 890 |
|
} |
| 891 |
|
|
| 892 |
|
/* |
| 893 |
|
* Generate a new larger rectangle that includes the border |
| 894 |
|
* width, if there is one. |
| 895 |
|
*/ |
| 896 |
|
|
| 897 |
|
x1 = rectPtr->bbox[0]; |
| 898 |
|
y1 = rectPtr->bbox[1]; |
| 899 |
|
x2 = rectPtr->bbox[2]; |
| 900 |
|
y2 = rectPtr->bbox[3]; |
| 901 |
|
if (rectPtr->outline.gc != None) { |
| 902 |
|
inc = width/2.0; |
| 903 |
|
x1 -= inc; |
| 904 |
|
y1 -= inc; |
| 905 |
|
x2 += inc; |
| 906 |
|
y2 += inc; |
| 907 |
|
} |
| 908 |
|
|
| 909 |
|
/* |
| 910 |
|
* If the point is inside the rectangle, handle specially: |
| 911 |
|
* distance is 0 if rectangle is filled, otherwise compute |
| 912 |
|
* distance to nearest edge of rectangle and subtract width |
| 913 |
|
* of edge. |
| 914 |
|
*/ |
| 915 |
|
|
| 916 |
|
if ((pointPtr[0] >= x1) && (pointPtr[0] < x2) |
| 917 |
|
&& (pointPtr[1] >= y1) && (pointPtr[1] < y2)) { |
| 918 |
|
if ((rectPtr->fillGC != None) || (rectPtr->outline.gc == None)) { |
| 919 |
|
return 0.0; |
| 920 |
|
} |
| 921 |
|
xDiff = pointPtr[0] - x1; |
| 922 |
|
tmp = x2 - pointPtr[0]; |
| 923 |
|
if (tmp < xDiff) { |
| 924 |
|
xDiff = tmp; |
| 925 |
|
} |
| 926 |
|
yDiff = pointPtr[1] - y1; |
| 927 |
|
tmp = y2 - pointPtr[1]; |
| 928 |
|
if (tmp < yDiff) { |
| 929 |
|
yDiff = tmp; |
| 930 |
|
} |
| 931 |
|
if (yDiff < xDiff) { |
| 932 |
|
xDiff = yDiff; |
| 933 |
|
} |
| 934 |
|
xDiff -= width; |
| 935 |
|
if (xDiff < 0.0) { |
| 936 |
|
return 0.0; |
| 937 |
|
} |
| 938 |
|
return xDiff; |
| 939 |
|
} |
| 940 |
|
|
| 941 |
|
/* |
| 942 |
|
* Point is outside rectangle. |
| 943 |
|
*/ |
| 944 |
|
|
| 945 |
|
if (pointPtr[0] < x1) { |
| 946 |
|
xDiff = x1 - pointPtr[0]; |
| 947 |
|
} else if (pointPtr[0] > x2) { |
| 948 |
|
xDiff = pointPtr[0] - x2; |
| 949 |
|
} else { |
| 950 |
|
xDiff = 0; |
| 951 |
|
} |
| 952 |
|
|
| 953 |
|
if (pointPtr[1] < y1) { |
| 954 |
|
yDiff = y1 - pointPtr[1]; |
| 955 |
|
} else if (pointPtr[1] > y2) { |
| 956 |
|
yDiff = pointPtr[1] - y2; |
| 957 |
|
} else { |
| 958 |
|
yDiff = 0; |
| 959 |
|
} |
| 960 |
|
|
| 961 |
|
return hypot(xDiff, yDiff); |
| 962 |
|
} |
| 963 |
|
|
| 964 |
|
/* |
| 965 |
|
*-------------------------------------------------------------- |
| 966 |
|
* |
| 967 |
|
* OvalToPoint -- |
| 968 |
|
* |
| 969 |
|
* Computes the distance from a given point to a given |
| 970 |
|
* oval, in canvas units. |
| 971 |
|
* |
| 972 |
|
* Results: |
| 973 |
|
* The return value is 0 if the point whose x and y coordinates |
| 974 |
|
* are coordPtr[0] and coordPtr[1] is inside the oval. If the |
| 975 |
|
* point isn't inside the oval then the return value is the |
| 976 |
|
* distance from the point to the oval. If itemPtr is filled, |
| 977 |
|
* then anywhere in the interior is considered "inside"; if |
| 978 |
|
* itemPtr isn't filled, then "inside" means only the area |
| 979 |
|
* occupied by the outline. |
| 980 |
|
* |
| 981 |
|
* Side effects: |
| 982 |
|
* None. |
| 983 |
|
* |
| 984 |
|
*-------------------------------------------------------------- |
| 985 |
|
*/ |
| 986 |
|
|
| 987 |
|
/* ARGSUSED */ |
| 988 |
|
static double |
| 989 |
|
OvalToPoint(canvas, itemPtr, pointPtr) |
| 990 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 991 |
|
Tk_Item *itemPtr; /* Item to check against point. */ |
| 992 |
|
double *pointPtr; /* Pointer to x and y coordinates. */ |
| 993 |
|
{ |
| 994 |
|
RectOvalItem *ovalPtr = (RectOvalItem *) itemPtr; |
| 995 |
|
double width; |
| 996 |
|
int filled; |
| 997 |
|
Tk_State state = itemPtr->state; |
| 998 |
|
|
| 999 |
|
if(state == TK_STATE_NULL) { |
| 1000 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 1001 |
|
} |
| 1002 |
|
|
| 1003 |
|
width = (double) ovalPtr->outline.width; |
| 1004 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 1005 |
|
if (ovalPtr->outline.activeWidth>width) { |
| 1006 |
|
width = (double) ovalPtr->outline.activeWidth; |
| 1007 |
|
} |
| 1008 |
|
} else if (state==TK_STATE_DISABLED) { |
| 1009 |
|
if (ovalPtr->outline.disabledWidth>0) { |
| 1010 |
|
width = (double) ovalPtr->outline.disabledWidth; |
| 1011 |
|
} |
| 1012 |
|
} |
| 1013 |
|
|
| 1014 |
|
|
| 1015 |
|
filled = ovalPtr->fillGC != None; |
| 1016 |
|
if (ovalPtr->outline.gc == None) { |
| 1017 |
|
width = 0.0; |
| 1018 |
|
filled = 1; |
| 1019 |
|
} |
| 1020 |
|
return TkOvalToPoint(ovalPtr->bbox, width, filled, pointPtr); |
| 1021 |
|
} |
| 1022 |
|
|
| 1023 |
|
/* |
| 1024 |
|
*-------------------------------------------------------------- |
| 1025 |
|
* |
| 1026 |
|
* RectToArea -- |
| 1027 |
|
* |
| 1028 |
|
* This procedure is called to determine whether an item |
| 1029 |
|
* lies entirely inside, entirely outside, or overlapping |
| 1030 |
|
* a given rectangle. |
| 1031 |
|
* |
| 1032 |
|
* Results: |
| 1033 |
|
* -1 is returned if the item is entirely outside the area |
| 1034 |
|
* given by rectPtr, 0 if it overlaps, and 1 if it is entirely |
| 1035 |
|
* inside the given area. |
| 1036 |
|
* |
| 1037 |
|
* Side effects: |
| 1038 |
|
* None. |
| 1039 |
|
* |
| 1040 |
|
*-------------------------------------------------------------- |
| 1041 |
|
*/ |
| 1042 |
|
|
| 1043 |
|
/* ARGSUSED */ |
| 1044 |
|
static int |
| 1045 |
|
RectToArea(canvas, itemPtr, areaPtr) |
| 1046 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 1047 |
|
Tk_Item *itemPtr; /* Item to check against rectangle. */ |
| 1048 |
|
double *areaPtr; /* Pointer to array of four coordinates |
| 1049 |
|
* (x1, y1, x2, y2) describing rectangular |
| 1050 |
|
* area. */ |
| 1051 |
|
{ |
| 1052 |
|
RectOvalItem *rectPtr = (RectOvalItem *) itemPtr; |
| 1053 |
|
double halfWidth; |
| 1054 |
|
double width; |
| 1055 |
|
Tk_State state = itemPtr->state; |
| 1056 |
|
|
| 1057 |
|
if(state == TK_STATE_NULL) { |
| 1058 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 1059 |
|
} |
| 1060 |
|
|
| 1061 |
|
width = rectPtr->outline.width; |
| 1062 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 1063 |
|
if (rectPtr->outline.activeWidth>width) { |
| 1064 |
|
width = rectPtr->outline.activeWidth; |
| 1065 |
|
} |
| 1066 |
|
} else if (state==TK_STATE_DISABLED) { |
| 1067 |
|
if (rectPtr->outline.disabledWidth>0) { |
| 1068 |
|
width = rectPtr->outline.disabledWidth; |
| 1069 |
|
} |
| 1070 |
|
} |
| 1071 |
|
|
| 1072 |
|
halfWidth = width/2.0; |
| 1073 |
|
if (rectPtr->outline.gc == None) { |
| 1074 |
|
halfWidth = 0.0; |
| 1075 |
|
} |
| 1076 |
|
|
| 1077 |
|
if ((areaPtr[2] <= (rectPtr->bbox[0] - halfWidth)) |
| 1078 |
|
|| (areaPtr[0] >= (rectPtr->bbox[2] + halfWidth)) |
| 1079 |
|
|| (areaPtr[3] <= (rectPtr->bbox[1] - halfWidth)) |
| 1080 |
|
|| (areaPtr[1] >= (rectPtr->bbox[3] + halfWidth))) { |
| 1081 |
|
return -1; |
| 1082 |
|
} |
| 1083 |
|
if ((rectPtr->fillGC == None) && (rectPtr->outline.gc != None) |
| 1084 |
|
&& (areaPtr[0] >= (rectPtr->bbox[0] + halfWidth)) |
| 1085 |
|
&& (areaPtr[1] >= (rectPtr->bbox[1] + halfWidth)) |
| 1086 |
|
&& (areaPtr[2] <= (rectPtr->bbox[2] - halfWidth)) |
| 1087 |
|
&& (areaPtr[3] <= (rectPtr->bbox[3] - halfWidth))) { |
| 1088 |
|
return -1; |
| 1089 |
|
} |
| 1090 |
|
if ((areaPtr[0] <= (rectPtr->bbox[0] - halfWidth)) |
| 1091 |
|
&& (areaPtr[1] <= (rectPtr->bbox[1] - halfWidth)) |
| 1092 |
|
&& (areaPtr[2] >= (rectPtr->bbox[2] + halfWidth)) |
| 1093 |
|
&& (areaPtr[3] >= (rectPtr->bbox[3] + halfWidth))) { |
| 1094 |
|
return 1; |
| 1095 |
|
} |
| 1096 |
|
return 0; |
| 1097 |
|
} |
| 1098 |
|
|
| 1099 |
|
/* |
| 1100 |
|
*-------------------------------------------------------------- |
| 1101 |
|
* |
| 1102 |
|
* OvalToArea -- |
| 1103 |
|
* |
| 1104 |
|
* This procedure is called to determine whether an item |
| 1105 |
|
* lies entirely inside, entirely outside, or overlapping |
| 1106 |
|
* a given rectangular area. |
| 1107 |
|
* |
| 1108 |
|
* Results: |
| 1109 |
|
* -1 is returned if the item is entirely outside the area |
| 1110 |
|
* given by rectPtr, 0 if it overlaps, and 1 if it is entirely |
| 1111 |
|
* inside the given area. |
| 1112 |
|
* |
| 1113 |
|
* Side effects: |
| 1114 |
|
* None. |
| 1115 |
|
* |
| 1116 |
|
*-------------------------------------------------------------- |
| 1117 |
|
*/ |
| 1118 |
|
|
| 1119 |
|
/* ARGSUSED */ |
| 1120 |
|
static int |
| 1121 |
|
OvalToArea(canvas, itemPtr, areaPtr) |
| 1122 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 1123 |
|
Tk_Item *itemPtr; /* Item to check against oval. */ |
| 1124 |
|
double *areaPtr; /* Pointer to array of four coordinates |
| 1125 |
|
* (x1, y1, x2, y2) describing rectangular |
| 1126 |
|
* area. */ |
| 1127 |
|
{ |
| 1128 |
|
RectOvalItem *ovalPtr = (RectOvalItem *) itemPtr; |
| 1129 |
|
double oval[4], halfWidth; |
| 1130 |
|
int result; |
| 1131 |
|
double width; |
| 1132 |
|
Tk_State state = itemPtr->state; |
| 1133 |
|
|
| 1134 |
|
if(state == TK_STATE_NULL) { |
| 1135 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 1136 |
|
} |
| 1137 |
|
|
| 1138 |
|
width = ovalPtr->outline.width; |
| 1139 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 1140 |
|
if (ovalPtr->outline.activeWidth>width) { |
| 1141 |
|
width = ovalPtr->outline.activeWidth; |
| 1142 |
|
} |
| 1143 |
|
} else if (state==TK_STATE_DISABLED) { |
| 1144 |
|
if (ovalPtr->outline.disabledWidth>0) { |
| 1145 |
|
width = ovalPtr->outline.disabledWidth; |
| 1146 |
|
} |
| 1147 |
|
} |
| 1148 |
|
|
| 1149 |
|
/* |
| 1150 |
|
* Expand the oval to include the width of the outline, if any. |
| 1151 |
|
*/ |
| 1152 |
|
|
| 1153 |
|
halfWidth = width/2.0; |
| 1154 |
|
if (ovalPtr->outline.gc == None) { |
| 1155 |
|
halfWidth = 0.0; |
| 1156 |
|
} |
| 1157 |
|
oval[0] = ovalPtr->bbox[0] - halfWidth; |
| 1158 |
|
oval[1] = ovalPtr->bbox[1] - halfWidth; |
| 1159 |
|
oval[2] = ovalPtr->bbox[2] + halfWidth; |
| 1160 |
|
oval[3] = ovalPtr->bbox[3] + halfWidth; |
| 1161 |
|
|
| 1162 |
|
result = TkOvalToArea(oval, areaPtr); |
| 1163 |
|
|
| 1164 |
|
/* |
| 1165 |
|
* If the rectangle appears to overlap the oval and the oval |
| 1166 |
|
* isn't filled, do one more check to see if perhaps all four |
| 1167 |
|
* of the rectangle's corners are totally inside the oval's |
| 1168 |
|
* unfilled center, in which case we should return "outside". |
| 1169 |
|
*/ |
| 1170 |
|
|
| 1171 |
|
if ((result == 0) && (ovalPtr->outline.gc != None) |
| 1172 |
|
&& (ovalPtr->fillGC == None)) { |
| 1173 |
|
double centerX, centerY, height; |
| 1174 |
|
double xDelta1, yDelta1, xDelta2, yDelta2; |
| 1175 |
|
|
| 1176 |
|
centerX = (ovalPtr->bbox[0] + ovalPtr->bbox[2])/2.0; |
| 1177 |
|
centerY = (ovalPtr->bbox[1] + ovalPtr->bbox[3])/2.0; |
| 1178 |
|
width = (ovalPtr->bbox[2] - ovalPtr->bbox[0])/2.0 - halfWidth; |
| 1179 |
|
height = (ovalPtr->bbox[3] - ovalPtr->bbox[1])/2.0 - halfWidth; |
| 1180 |
|
xDelta1 = (areaPtr[0] - centerX)/width; |
| 1181 |
|
xDelta1 *= xDelta1; |
| 1182 |
|
yDelta1 = (areaPtr[1] - centerY)/height; |
| 1183 |
|
yDelta1 *= yDelta1; |
| 1184 |
|
xDelta2 = (areaPtr[2] - centerX)/width; |
| 1185 |
|
xDelta2 *= xDelta2; |
| 1186 |
|
yDelta2 = (areaPtr[3] - centerY)/height; |
| 1187 |
|
yDelta2 *= yDelta2; |
| 1188 |
|
if (((xDelta1 + yDelta1) < 1.0) |
| 1189 |
|
&& ((xDelta1 + yDelta2) < 1.0) |
| 1190 |
|
&& ((xDelta2 + yDelta1) < 1.0) |
| 1191 |
|
&& ((xDelta2 + yDelta2) < 1.0)) { |
| 1192 |
|
return -1; |
| 1193 |
|
} |
| 1194 |
|
} |
| 1195 |
|
return result; |
| 1196 |
|
} |
| 1197 |
|
|
| 1198 |
|
/* |
| 1199 |
|
*-------------------------------------------------------------- |
| 1200 |
|
* |
| 1201 |
|
* ScaleRectOval -- |
| 1202 |
|
* |
| 1203 |
|
* This procedure is invoked to rescale a rectangle or oval |
| 1204 |
|
* item. |
| 1205 |
|
* |
| 1206 |
|
* Results: |
| 1207 |
|
* None. |
| 1208 |
|
* |
| 1209 |
|
* Side effects: |
| 1210 |
|
* The rectangle or oval referred to by itemPtr is rescaled |
| 1211 |
|
* so that the following transformation is applied to all |
| 1212 |
|
* point coordinates: |
| 1213 |
|
* x' = originX + scaleX*(x-originX) |
| 1214 |
|
* y' = originY + scaleY*(y-originY) |
| 1215 |
|
* |
| 1216 |
|
*-------------------------------------------------------------- |
| 1217 |
|
*/ |
| 1218 |
|
|
| 1219 |
|
static void |
| 1220 |
|
ScaleRectOval(canvas, itemPtr, originX, originY, scaleX, scaleY) |
| 1221 |
|
Tk_Canvas canvas; /* Canvas containing rectangle. */ |
| 1222 |
|
Tk_Item *itemPtr; /* Rectangle to be scaled. */ |
| 1223 |
|
double originX, originY; /* Origin about which to scale rect. */ |
| 1224 |
|
double scaleX; /* Amount to scale in X direction. */ |
| 1225 |
|
double scaleY; /* Amount to scale in Y direction. */ |
| 1226 |
|
{ |
| 1227 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 1228 |
|
|
| 1229 |
|
rectOvalPtr->bbox[0] = originX + scaleX*(rectOvalPtr->bbox[0] - originX); |
| 1230 |
|
rectOvalPtr->bbox[1] = originY + scaleY*(rectOvalPtr->bbox[1] - originY); |
| 1231 |
|
rectOvalPtr->bbox[2] = originX + scaleX*(rectOvalPtr->bbox[2] - originX); |
| 1232 |
|
rectOvalPtr->bbox[3] = originY + scaleY*(rectOvalPtr->bbox[3] - originY); |
| 1233 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
| 1234 |
|
} |
| 1235 |
|
|
| 1236 |
|
/* |
| 1237 |
|
*-------------------------------------------------------------- |
| 1238 |
|
* |
| 1239 |
|
* TranslateRectOval -- |
| 1240 |
|
* |
| 1241 |
|
* This procedure is called to move a rectangle or oval by a |
| 1242 |
|
* given amount. |
| 1243 |
|
* |
| 1244 |
|
* Results: |
| 1245 |
|
* None. |
| 1246 |
|
* |
| 1247 |
|
* Side effects: |
| 1248 |
|
* The position of the rectangle or oval is offset by |
| 1249 |
|
* (xDelta, yDelta), and the bounding box is updated in the |
| 1250 |
|
* generic part of the item structure. |
| 1251 |
|
* |
| 1252 |
|
*-------------------------------------------------------------- |
| 1253 |
|
*/ |
| 1254 |
|
|
| 1255 |
|
static void |
| 1256 |
|
TranslateRectOval(canvas, itemPtr, deltaX, deltaY) |
| 1257 |
|
Tk_Canvas canvas; /* Canvas containing item. */ |
| 1258 |
|
Tk_Item *itemPtr; /* Item that is being moved. */ |
| 1259 |
|
double deltaX, deltaY; /* Amount by which item is to be |
| 1260 |
|
* moved. */ |
| 1261 |
|
{ |
| 1262 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 1263 |
|
|
| 1264 |
|
rectOvalPtr->bbox[0] += deltaX; |
| 1265 |
|
rectOvalPtr->bbox[1] += deltaY; |
| 1266 |
|
rectOvalPtr->bbox[2] += deltaX; |
| 1267 |
|
rectOvalPtr->bbox[3] += deltaY; |
| 1268 |
|
ComputeRectOvalBbox(canvas, rectOvalPtr); |
| 1269 |
|
} |
| 1270 |
|
|
| 1271 |
|
/* |
| 1272 |
|
*-------------------------------------------------------------- |
| 1273 |
|
* |
| 1274 |
|
* RectOvalToPostscript -- |
| 1275 |
|
* |
| 1276 |
|
* This procedure is called to generate Postscript for |
| 1277 |
|
* rectangle and oval items. |
| 1278 |
|
* |
| 1279 |
|
* Results: |
| 1280 |
|
* The return value is a standard Tcl result. If an error |
| 1281 |
|
* occurs in generating Postscript then an error message is |
| 1282 |
|
* left in the interp's result, replacing whatever used to be there. |
| 1283 |
|
* If no error occurs, then Postscript for the rectangle is |
| 1284 |
|
* appended to the result. |
| 1285 |
|
* |
| 1286 |
|
* Side effects: |
| 1287 |
|
* None. |
| 1288 |
|
* |
| 1289 |
|
*-------------------------------------------------------------- |
| 1290 |
|
*/ |
| 1291 |
|
|
| 1292 |
|
static int |
| 1293 |
|
RectOvalToPostscript(interp, canvas, itemPtr, prepass) |
| 1294 |
|
Tcl_Interp *interp; /* Interpreter for error reporting. */ |
| 1295 |
|
Tk_Canvas canvas; /* Information about overall canvas. */ |
| 1296 |
|
Tk_Item *itemPtr; /* Item for which Postscript is |
| 1297 |
|
* wanted. */ |
| 1298 |
|
int prepass; /* 1 means this is a prepass to |
| 1299 |
|
* collect font information; 0 means |
| 1300 |
|
* final Postscript is being created. */ |
| 1301 |
|
{ |
| 1302 |
|
char pathCmd[500]; |
| 1303 |
|
RectOvalItem *rectOvalPtr = (RectOvalItem *) itemPtr; |
| 1304 |
|
double y1, y2; |
| 1305 |
|
XColor *color; |
| 1306 |
|
XColor *fillColor; |
| 1307 |
|
Pixmap fillStipple; |
| 1308 |
|
Tk_State state = itemPtr->state; |
| 1309 |
|
|
| 1310 |
|
y1 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[1]); |
| 1311 |
|
y2 = Tk_CanvasPsY(canvas, rectOvalPtr->bbox[3]); |
| 1312 |
|
|
| 1313 |
|
/* |
| 1314 |
|
* Generate a string that creates a path for the rectangle or oval. |
| 1315 |
|
* This is the only part of the procedure's code that is type- |
| 1316 |
|
* specific. |
| 1317 |
|
*/ |
| 1318 |
|
|
| 1319 |
|
|
| 1320 |
|
if (rectOvalPtr->header.typePtr == &tkRectangleType) { |
| 1321 |
|
sprintf(pathCmd, "%.15g %.15g moveto %.15g 0 rlineto 0 %.15g rlineto %.15g 0 rlineto closepath\n", |
| 1322 |
|
rectOvalPtr->bbox[0], y1, |
| 1323 |
|
rectOvalPtr->bbox[2]-rectOvalPtr->bbox[0], y2-y1, |
| 1324 |
|
rectOvalPtr->bbox[0]-rectOvalPtr->bbox[2]); |
| 1325 |
|
} else { |
| 1326 |
|
sprintf(pathCmd, "matrix currentmatrix\n%.15g %.15g translate %.15g %.15g scale 1 0 moveto 0 0 1 0 360 arc\nsetmatrix\n", |
| 1327 |
|
(rectOvalPtr->bbox[0] + rectOvalPtr->bbox[2])/2, (y1 + y2)/2, |
| 1328 |
|
(rectOvalPtr->bbox[2] - rectOvalPtr->bbox[0])/2, (y1 - y2)/2); |
| 1329 |
|
} |
| 1330 |
|
|
| 1331 |
|
if(state == TK_STATE_NULL) { |
| 1332 |
|
state = ((TkCanvas *)canvas)->canvas_state; |
| 1333 |
|
} |
| 1334 |
|
color = rectOvalPtr->outline.color; |
| 1335 |
|
fillColor = rectOvalPtr->fillColor; |
| 1336 |
|
fillStipple = rectOvalPtr->fillStipple; |
| 1337 |
|
if (((TkCanvas *)canvas)->currentItemPtr == itemPtr) { |
| 1338 |
|
if (rectOvalPtr->outline.activeColor!=NULL) { |
| 1339 |
|
color = rectOvalPtr->outline.activeColor; |
| 1340 |
|
} |
| 1341 |
|
if (rectOvalPtr->activeFillColor!=NULL) { |
| 1342 |
|
fillColor = rectOvalPtr->activeFillColor; |
| 1343 |
|
} |
| 1344 |
|
if (rectOvalPtr->activeFillStipple!=None) { |
| 1345 |
|
fillStipple = rectOvalPtr->activeFillStipple; |
| 1346 |
|
} |
| 1347 |
|
} else if (state==TK_STATE_DISABLED) { |
| 1348 |
|
if (rectOvalPtr->outline.disabledColor!=NULL) { |
| 1349 |
|
color = rectOvalPtr->outline.disabledColor; |
| 1350 |
|
} |
| 1351 |
|
if (rectOvalPtr->disabledFillColor!=NULL) { |
| 1352 |
|
fillColor = rectOvalPtr->disabledFillColor; |
| 1353 |
|
} |
| 1354 |
|
if (rectOvalPtr->disabledFillStipple!=None) { |
| 1355 |
|
fillStipple = rectOvalPtr->disabledFillStipple; |
| 1356 |
|
} |
| 1357 |
|
} |
| 1358 |
|
|
| 1359 |
|
/* |
| 1360 |
|
* First draw the filled area of the rectangle. |
| 1361 |
|
*/ |
| 1362 |
|
|
| 1363 |
|
if (fillColor != NULL) { |
| 1364 |
|
Tcl_AppendResult(interp, pathCmd, (char *) NULL); |
| 1365 |
|
if (Tk_CanvasPsColor(interp, canvas, fillColor) |
| 1366 |
|
!= TCL_OK) { |
| 1367 |
|
return TCL_ERROR; |
| 1368 |
|
} |
| 1369 |
|
if (fillStipple != None) { |
| 1370 |
|
Tcl_AppendResult(interp, "clip ", (char *) NULL); |
| 1371 |
|
if (Tk_CanvasPsStipple(interp, canvas, fillStipple) |
| 1372 |
|
!= TCL_OK) { |
| 1373 |
|
return TCL_ERROR; |
| 1374 |
|
} |
| 1375 |
|
if (color != NULL) { |
| 1376 |
|
Tcl_AppendResult(interp, "grestore gsave\n", (char *) NULL); |
| 1377 |
|
} |
| 1378 |
|
} else { |
| 1379 |
|
Tcl_AppendResult(interp, "fill\n", (char *) NULL); |
| 1380 |
|
} |
| 1381 |
|
} |
| 1382 |
|
|
| 1383 |
|
/* |
| 1384 |
|
* Now draw the outline, if there is one. |
| 1385 |
|
*/ |
| 1386 |
|
|
| 1387 |
|
if (color != NULL) { |
| 1388 |
|
Tcl_AppendResult(interp, pathCmd, "0 setlinejoin 2 setlinecap\n", |
| 1389 |
|
(char *) NULL); |
| 1390 |
|
if (Tk_CanvasPsOutline(canvas, itemPtr, |
| 1391 |
|
&(rectOvalPtr->outline))!= TCL_OK) { |
| 1392 |
|
return TCL_ERROR; |
| 1393 |
|
} |
| 1394 |
|
} |
| 1395 |
|
return TCL_OK; |
| 1396 |
|
} |
| 1397 |
|
|
| 1398 |
|
/* End of tkrectoval.c */ |
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