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/* $Header: /cvsroot/esrg/sfesrg/esrgpcpj/shared/tk_base/tkbutton.h,v 1.1.1.1 2001/06/13 04:54:50 dtashley Exp $ */
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/*
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* tkButton.h --
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*
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* Declarations of types and functions used to implement
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* button-like widgets.
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*
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* Copyright (c) 1996-1998 by 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: tkbutton.h,v 1.1.1.1 2001/06/13 04:54:50 dtashley Exp $
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*/
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#ifndef _TKBUTTON
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#define _TKBUTTON
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#ifndef _TKINT
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#include "tkInt.h"
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#endif
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#ifdef BUILD_tk
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# undef TCL_STORAGE_CLASS
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# define TCL_STORAGE_CLASS DLLEXPORT
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#endif
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/*
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* Legal values for the "state" field of TkButton records.
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*/
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enum state {
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STATE_ACTIVE, STATE_DISABLED, STATE_NORMAL
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};
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/*
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* Legal values for the "defaultState" field of TkButton records.
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*/
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enum defaultState {
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DEFAULT_ACTIVE, DEFAULT_DISABLED, DEFAULT_NORMAL
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};
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/*
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* A data structure of the following type is kept for each
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* widget managed by this file:
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*/
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typedef struct {
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Tk_Window tkwin; /* Window that embodies the button. NULL
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* means that the window has been destroyed. */
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Display *display; /* Display containing widget. Needed to
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* free up resources after tkwin is gone. */
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Tcl_Interp *interp; /* Interpreter associated with button. */
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Tcl_Command widgetCmd; /* Token for button's widget command. */
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int type; /* Type of widget, such as TYPE_LABEL:
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* restricts operations that may be performed
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* on widget. See below for legal values. */
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Tk_OptionTable optionTable; /* Table that defines configuration options
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* available for this widget. */
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/*
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* Information about what's in the button.
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*/
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Tcl_Obj *textPtr; /* Value of -text option: specifies text to
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* display in button. */
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int underline; /* Value of -underline option: specifies
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* index of character to underline. < 0 means
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* don't underline anything. */
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Tcl_Obj *textVarNamePtr; /* Value of -textvariable option: specifies
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* name of variable or NULL. If non-NULL,
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* button displays the contents of this
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* variable. */
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Pixmap bitmap; /* Value of -bitmap option. If not None,
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* specifies bitmap to display and text and
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* textVar are ignored. */
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Tcl_Obj *imagePtr; /* Value of -image option: specifies image
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* to display in window, or NULL if none.
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* If non-NULL, bitmap, text, and textVarName
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* are ignored.*/
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Tk_Image image; /* Derived from imagePtr by calling
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* Tk_GetImage, or NULL if imagePtr is NULL. */
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Tcl_Obj *selectImagePtr; /* Value of -selectimage option: specifies
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* image to display in window when selected,
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* or NULL if none. Ignored if imagePtr is
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* NULL. */
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Tk_Image selectImage; /* Derived from selectImagePtr by calling
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* Tk_GetImage, or NULL if selectImagePtr
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* is NULL. */
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/*
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* Information used when displaying widget:
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*/
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enum state state; /* Value of -state option: specifies
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* state of button for display purposes.*/
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Tk_3DBorder normalBorder; /* Value of -background option: specifies
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* color for background (and border) when
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* window isn't active. */
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Tk_3DBorder activeBorder; /* Value of -activebackground option:
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* this is the color used to draw 3-D border
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* and background when widget is active. */
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Tcl_Obj *borderWidthPtr; /* Value of -borderWidth option: specifies
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* width of border in pixels. */
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int borderWidth; /* Integer value corresponding to
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* borderWidthPtr. Always >= 0. */
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int relief; /* Value of -relief option: specifies 3-d
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* effect for border, such as
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* TK_RELIEF_RAISED. */
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Tcl_Obj *highlightWidthPtr; /* Value of -highlightthickness option:
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* specifies width in pixels of highlight to
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* draw around widget when it has the focus.
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* <= 0 means don't draw a highlight. */
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int highlightWidth; /* Integer value corresponding to
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* highlightWidthPtr. Always >= 0. */
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Tk_3DBorder highlightBorder;/* Value of -highlightbackground option:
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* specifies background with which to draw 3-D
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* default ring and focus highlight area when
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* highlight is off. */
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XColor *highlightColorPtr; /* Value of -highlightcolor option:
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* specifies color for drawing traversal
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* highlight. */
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int inset; /* Total width of all borders, including
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* traversal highlight and 3-D border.
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* Indicates how much interior stuff must
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* be offset from outside edges to leave
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* room for borders. */
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Tk_Font tkfont; /* Value of -font option: specifies font
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* to use for display text. */
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XColor *normalFg; /* Value of -font option: specifies foreground
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* color in normal mode. */
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XColor *activeFg; /* Value of -activeforeground option:
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* foreground color in active mode. NULL
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* means use -foreground instead. */
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XColor *disabledFg; /* Value of -disabledforeground option:
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* foreground color when disabled. NULL
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* means use normalFg with a 50% stipple
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* instead. */
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GC normalTextGC; /* GC for drawing text in normal mode. Also
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* used to copy from off-screen pixmap onto
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* screen. */
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GC activeTextGC; /* GC for drawing text in active mode (NULL
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* means use normalTextGC). */
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GC disabledGC; /* Used to produce disabled effect. If
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* disabledFg isn't NULL, this GC is used to
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* draw button text or icon. Otherwise
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* text or icon is drawn with normalGC and
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* this GC is used to stipple background
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* across it. For labels this is None. */
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Pixmap gray; /* Pixmap for displaying disabled text if
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* disabledFg is NULL. */
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GC copyGC; /* Used for copying information from an
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* off-screen pixmap to the screen. */
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Tcl_Obj *widthPtr; /* Value of -width option. */
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int width; /* Integer value corresponding to widthPtr. */
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Tcl_Obj *heightPtr; /* Value of -height option. */
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int height; /* Integer value corresponding to heightPtr. */
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Tcl_Obj *wrapLengthPtr; /* Value of -wraplength option: specifies
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* line length (in pixels) at which to wrap
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* onto next line. <= 0 means don't wrap
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* except at newlines. */
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int wrapLength; /* Integer value corresponding to
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* wrapLengthPtr. */
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Tcl_Obj *padXPtr; /* Value of -padx option: specifies how many
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* pixels of extra space to leave on left and
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* right of text. Ignored for bitmaps and
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* images. */
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int padX; /* Integer value corresponding to padXPtr. */
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Tcl_Obj *padYPtr; /* Value of -padx option: specifies how many
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* pixels of extra space to leave above and
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* below text. Ignored for bitmaps and
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* images. */
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int padY; /* Integer value corresponding to padYPtr. */
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Tk_Anchor anchor; /* Value of -anchor option: specifies where
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* text/bitmap should be displayed inside
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* button region. */
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Tk_Justify justify; /* Value of -justify option: specifies how
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* to align lines of multi-line text. */
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int indicatorOn; /* Value of -indicatoron option: 1 means
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* draw indicator in checkbuttons and
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* radiobuttons, 0 means don't draw it. */
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Tk_3DBorder selectBorder; /* Value of -selectcolor option: specifies
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* color for drawing indicator background, or
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* perhaps widget background, when selected. */
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int textWidth; /* Width needed to display text as requested,
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* in pixels. */
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int textHeight; /* Height needed to display text as requested,
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* in pixels. */
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Tk_TextLayout textLayout; /* Saved text layout information. */
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int indicatorSpace; /* Horizontal space (in pixels) allocated for
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* display of indicator. */
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int indicatorDiameter; /* Diameter of indicator, in pixels. */
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enum defaultState defaultState;
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/* Value of -default option, such as
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* DEFAULT_NORMAL: specifies state
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* of default ring for buttons (normal,
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* active, or disabled). NULL for other
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* classes. */
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/*
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* For check and radio buttons, the fields below are used
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* to manage the variable indicating the button's state.
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*/
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Tcl_Obj *selVarNamePtr; /* Value of -variable option: specifies name
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* of variable used to control selected
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* state of button. */
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Tcl_Obj *onValuePtr; /* Value of -offvalue option: specifies value
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* to store in variable when this button is
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* selected. */
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Tcl_Obj *offValuePtr; /* Value of -offvalue option: specifies value
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* to store in variable when this button
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* isn't selected. Used only by
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* checkbuttons. */
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/*
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* Miscellaneous information:
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*/
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Tk_Cursor cursor; /* Value of -cursor option: if not None,
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* specifies current cursor for window. */
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Tcl_Obj *takeFocusPtr; /* Value of -takefocus option; not used in
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* the C code, but used by keyboard traversal
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* scripts. */
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Tcl_Obj *commandPtr; /* Value of -command option: specifies script
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* to execute when button is invoked. If
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* widget is label or has no command, this
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* is NULL. */
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int flags; /* Various flags; see below for
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* definitions. */
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} TkButton;
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/*
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* Possible "type" values for buttons. These are the kinds of
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* widgets supported by this file. The ordering of the type
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* numbers is significant: greater means more features and is
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* used in the code.
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*/
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#define TYPE_LABEL 0
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#define TYPE_BUTTON 1
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#define TYPE_CHECK_BUTTON 2
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#define TYPE_RADIO_BUTTON 3
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/*
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* Flag bits for buttons:
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*
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* REDRAW_PENDING: Non-zero means a DoWhenIdle handler
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* has already been queued to redraw
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* this window.
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* SELECTED: Non-zero means this button is selected,
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* so special highlight should be drawn.
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* GOT_FOCUS: Non-zero means this button currently
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* has the input focus.
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* BUTTON_DELETED: Non-zero needs that this button has been
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* deleted, or is in the process of being
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* deleted.
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*/
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#define REDRAW_PENDING 1
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#define SELECTED 2
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#define GOT_FOCUS 4
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#define BUTTON_DELETED 0x8
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/*
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* Declaration of variables shared between the files in the button module.
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*/
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extern TkClassProcs tkpButtonProcs;
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/*
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* Declaration of procedures used in the implementation of the button
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* widget.
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*/
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#ifndef TkpButtonSetDefaults
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extern void TkpButtonSetDefaults _ANSI_ARGS_((
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Tk_OptionSpec *specPtr));
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#endif
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extern void TkButtonWorldChanged _ANSI_ARGS_((
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ClientData instanceData));
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extern void TkpComputeButtonGeometry _ANSI_ARGS_((
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TkButton *butPtr));
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extern TkButton * TkpCreateButton _ANSI_ARGS_((Tk_Window tkwin));
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#ifndef TkpDestroyButton
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extern void TkpDestroyButton _ANSI_ARGS_((TkButton *butPtr));
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#endif
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#ifndef TkpDisplayButton
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extern void TkpDisplayButton _ANSI_ARGS_((ClientData clientData));
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#endif
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extern int TkInvokeButton _ANSI_ARGS_((TkButton *butPtr));
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# undef TCL_STORAGE_CLASS
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# define TCL_STORAGE_CLASS DLLIMPORT
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#endif /* _TKBUTTON */
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/* $History: tkButton.h $
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*
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* ***************** Version 1 *****************
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* User: Dtashley Date: 1/02/01 Time: 2:37a
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* Created in $/IjuScripter, IjuConsole/Source/Tk Base
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* Initial check-in.
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*/
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/* End of TKBUTTON.H */ |
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