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dashley |
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/* $Header$ */
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dashley |
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/*
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* xgc.c --
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*
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* This file contains generic routines for manipulating X graphics
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* contexts.
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*
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* Copyright (c) 1995-1996 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: xgc.c,v 1.1.1.1 2001/06/13 05:15:43 dtashley Exp $
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*/
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#include "tkInt.h"
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#ifdef MAC_TCL
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# include <Xlib.h>
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# include <X.h>
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# define Cursor XCursor
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# define Region XRegion
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#else
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# include "Xlib.h"
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#endif
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/*
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*----------------------------------------------------------------------
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*
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* XCreateGC --
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*
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* Allocate a new GC, and initialize the specified fields.
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*
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* Results:
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* Returns a newly allocated GC.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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GC
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XCreateGC(display, d, mask, values)
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Display* display;
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Drawable d;
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unsigned long mask;
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XGCValues* values;
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{
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GC gp;
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/*
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* In order to have room for a dash list, MAX_DASH_LIST_SIZE extra chars are
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* defined, which is invisible from the outside. The list is assumed to end
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* with a 0-char, so this must be set explicitely during initialization.
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*/
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#define MAX_DASH_LIST_SIZE 10
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gp = (XGCValues *)ckalloc(sizeof(XGCValues) + MAX_DASH_LIST_SIZE);
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if (!gp) {
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return None;
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}
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gp->function = (mask & GCFunction) ?values->function :GXcopy;
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gp->plane_mask = (mask & GCPlaneMask) ?values->plane_mask :~0;
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gp->foreground = (mask & GCForeground) ?values->foreground :0;
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gp->background = (mask & GCBackground) ?values->background :0xffffff;
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gp->line_width = (mask & GCLineWidth) ?values->line_width :0;
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gp->line_style = (mask & GCLineStyle) ?values->line_style :LineSolid;
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gp->cap_style = (mask & GCCapStyle) ?values->cap_style :0;
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gp->join_style = (mask & GCJoinStyle) ?values->join_style :0;
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gp->fill_style = (mask & GCFillStyle) ?values->fill_style :FillSolid;
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gp->fill_rule = (mask & GCFillRule) ?values->fill_rule :WindingRule;
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gp->arc_mode = (mask & GCArcMode) ?values->arc_mode :ArcPieSlice;
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gp->tile = (mask & GCTile) ?values->tile :None;
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gp->stipple = (mask & GCStipple) ?values->stipple :None;
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gp->ts_x_origin = (mask & GCTileStipXOrigin) ?values->ts_x_origin:0;
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gp->ts_y_origin = (mask & GCTileStipYOrigin) ?values->ts_y_origin:0;
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gp->font = (mask & GCFont) ?values->font :None;
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gp->subwindow_mode = (mask & GCSubwindowMode)?values->subwindow_mode:ClipByChildren;
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gp->graphics_exposures = (mask & GCGraphicsExposures)?values->graphics_exposures:True;
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gp->clip_x_origin = (mask & GCClipXOrigin) ?values->clip_x_origin :0;
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gp->clip_y_origin = (mask & GCClipYOrigin) ?values->clip_y_origin :0;
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gp->dash_offset = (mask & GCDashOffset) ?values->dash_offset :0;
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gp->dashes = (mask & GCDashList) ?values->dashes :4;
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(&(gp->dashes))[1] = 0;
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if (mask & GCClipMask) {
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gp->clip_mask = (Pixmap)ckalloc(sizeof(TkpClipMask));
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((TkpClipMask*)gp->clip_mask)->type = TKP_CLIP_PIXMAP;
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((TkpClipMask*)gp->clip_mask)->value.pixmap = values->clip_mask;
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} else {
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gp->clip_mask = None;
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}
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return gp;
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}
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/*
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*----------------------------------------------------------------------
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*
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* XChangeGC --
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*
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* Changes the GC components specified by valuemask for the
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* specified GC.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Updates the specified GC.
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*
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*----------------------------------------------------------------------
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*/
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void
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XChangeGC(d, gc, mask, values)
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Display * d;
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GC gc;
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unsigned long mask;
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XGCValues *values;
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{
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if (mask & GCFunction) { gc->function = values->function; }
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if (mask & GCPlaneMask) { gc->plane_mask = values->plane_mask; }
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if (mask & GCForeground) { gc->foreground = values->foreground; }
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if (mask & GCBackground) { gc->background = values->background; }
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if (mask & GCLineWidth) { gc->line_width = values->line_width; }
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if (mask & GCLineStyle) { gc->line_style = values->line_style; }
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if (mask & GCCapStyle) { gc->cap_style = values->cap_style; }
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if (mask & GCJoinStyle) { gc->join_style = values->join_style; }
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if (mask & GCFillStyle) { gc->fill_style = values->fill_style; }
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if (mask & GCFillRule) { gc->fill_rule = values->fill_rule; }
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if (mask & GCArcMode) { gc->arc_mode = values->arc_mode; }
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if (mask & GCTile) { gc->tile = values->tile; }
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if (mask & GCStipple) { gc->stipple = values->stipple; }
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if (mask & GCTileStipXOrigin) { gc->ts_x_origin = values->ts_x_origin; }
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if (mask & GCTileStipYOrigin) { gc->ts_y_origin = values->ts_y_origin; }
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if (mask & GCFont) { gc->font = values->font; }
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if (mask & GCSubwindowMode) { gc->subwindow_mode = values->subwindow_mode; }
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if (mask & GCGraphicsExposures) { gc->graphics_exposures = values->graphics_exposures; }
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if (mask & GCClipXOrigin) { gc->clip_x_origin = values->clip_x_origin; }
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if (mask & GCClipYOrigin) { gc->clip_y_origin = values->clip_y_origin; }
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if (mask & GCClipMask) { XSetClipMask(d, gc, values->clip_mask); }
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if (mask & GCDashOffset) { gc->dash_offset = values->dash_offset; }
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if (mask & GCDashList) { gc->dashes = values->dashes; (&(gc->dashes))[1] = 0;}
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}
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/*
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*----------------------------------------------------------------------
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*
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* XFreeGC --
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*
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* Deallocates the specified graphics context.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*----------------------------------------------------------------------
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*/
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void XFreeGC(d, gc)
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Display * d;
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GC gc;
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{
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if (gc != None) {
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if (gc->clip_mask != None) {
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ckfree((char*) gc->clip_mask);
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}
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ckfree((char *) gc);
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}
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}
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/*
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*----------------------------------------------------------------------
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*
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* XSetForeground, etc. --
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*
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* The following functions are simply accessor functions for
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* the GC slots.
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*
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* Results:
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* None.
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*
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* Side effects:
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* Each function sets some slot in the GC.
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*
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*----------------------------------------------------------------------
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*/
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void
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XSetForeground(display, gc, foreground)
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Display *display;
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GC gc;
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unsigned long foreground;
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{
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gc->foreground = foreground;
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}
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void
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XSetBackground(display, gc, background)
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Display *display;
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GC gc;
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unsigned long background;
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{
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gc->background = background;
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}
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void
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XSetDashes(display, gc, dash_offset, dash_list, n)
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Display* display;
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GC gc;
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int dash_offset;
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_Xconst char* dash_list;
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int n;
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{
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char *p = &(gc->dashes);
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#ifdef TkWinDeleteBrush
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TkWinDeleteBrush(gc->fgBrush);
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TkWinDeletePen(gc->fgPen);
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TkWinDeleteBrush(gc->bgBrush);
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TkWinDeletePen(gc->fgExtPen);
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#endif
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gc->dash_offset = dash_offset;
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if (n > MAX_DASH_LIST_SIZE) n = MAX_DASH_LIST_SIZE;
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while (n-- > 0) {
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*p++ = *dash_list++;
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}
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*p = 0;
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}
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void
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XSetFunction(display, gc, function)
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Display *display;
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GC gc;
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int function;
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{
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gc->function = function;
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}
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void
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XSetFillRule(display, gc, fill_rule)
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Display *display;
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GC gc;
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int fill_rule;
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{
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gc->fill_rule = fill_rule;
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}
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void
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XSetFillStyle(display, gc, fill_style)
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Display *display;
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GC gc;
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int fill_style;
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{
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gc->fill_style = fill_style;
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}
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void
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XSetTSOrigin(display, gc, x, y)
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Display *display;
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GC gc;
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int x, y;
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{
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gc->ts_x_origin = x;
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gc->ts_y_origin = y;
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}
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void
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XSetFont(display, gc, font)
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Display *display;
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GC gc;
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Font font;
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{
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gc->font = font;
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}
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void
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XSetArcMode(display, gc, arc_mode)
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Display *display;
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GC gc;
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int arc_mode;
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{
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gc->arc_mode = arc_mode;
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}
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293 |
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void
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XSetStipple(display, gc, stipple)
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Display *display;
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GC gc;
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Pixmap stipple;
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298 |
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{
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299 |
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gc->stipple = stipple;
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}
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301 |
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void
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XSetLineAttributes(display, gc, line_width, line_style, cap_style,
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join_style)
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305 |
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Display *display;
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GC gc;
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307 |
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unsigned int line_width;
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308 |
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int line_style;
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309 |
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int cap_style;
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310 |
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int join_style;
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311 |
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{
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312 |
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gc->line_width = line_width;
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313 |
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gc->line_style = line_style;
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314 |
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gc->cap_style = cap_style;
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315 |
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gc->join_style = join_style;
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316 |
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}
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317 |
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318 |
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void
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XSetClipOrigin(display, gc, clip_x_origin, clip_y_origin)
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320 |
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Display* display;
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321 |
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GC gc;
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322 |
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int clip_x_origin;
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323 |
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int clip_y_origin;
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324 |
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{
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325 |
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gc->clip_x_origin = clip_x_origin;
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gc->clip_y_origin = clip_y_origin;
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}
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328 |
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329 |
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/*
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330 |
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*----------------------------------------------------------------------
|
331 |
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*
|
332 |
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* TkSetRegion, XSetClipMask --
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333 |
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*
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334 |
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* Sets the clipping region/pixmap for a GC.
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335 |
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*
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336 |
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* Note that unlike the Xlib equivalent, it is not safe to delete
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337 |
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* the region after setting it into the GC. The only use of
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338 |
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* TkSetRegion is currently in ImgPhotoDisplay, which uses the GC
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339 |
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* immediately.
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340 |
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*
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341 |
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* Results:
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342 |
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* None.
|
343 |
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|
*
|
344 |
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|
* Side effects:
|
345 |
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* Allocates or dealloates a TkpClipMask.
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346 |
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|
*
|
347 |
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*----------------------------------------------------------------------
|
348 |
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|
*/
|
349 |
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|
350 |
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void
|
351 |
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TkSetRegion(display, gc, r)
|
352 |
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Display* display;
|
353 |
|
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GC gc;
|
354 |
|
|
TkRegion r;
|
355 |
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{
|
356 |
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|
if (r == None) {
|
357 |
|
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if (gc->clip_mask) {
|
358 |
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ckfree((char*) gc->clip_mask);
|
359 |
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gc->clip_mask = None;
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360 |
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}
|
361 |
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return;
|
362 |
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}
|
363 |
|
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|
364 |
|
|
if (gc->clip_mask == None) {
|
365 |
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|
gc->clip_mask = (Pixmap)ckalloc(sizeof(TkpClipMask));
|
366 |
|
|
}
|
367 |
|
|
((TkpClipMask*)gc->clip_mask)->type = TKP_CLIP_REGION;
|
368 |
|
|
((TkpClipMask*)gc->clip_mask)->value.region = r;
|
369 |
|
|
}
|
370 |
|
|
|
371 |
|
|
void
|
372 |
|
|
XSetClipMask(display, gc, pixmap)
|
373 |
|
|
Display* display;
|
374 |
|
|
GC gc;
|
375 |
|
|
Pixmap pixmap;
|
376 |
|
|
{
|
377 |
|
|
if (pixmap == None) {
|
378 |
|
|
if (gc->clip_mask) {
|
379 |
|
|
ckfree((char*) gc->clip_mask);
|
380 |
|
|
gc->clip_mask = None;
|
381 |
|
|
}
|
382 |
|
|
return;
|
383 |
|
|
}
|
384 |
|
|
|
385 |
|
|
if (gc->clip_mask == None) {
|
386 |
|
|
gc->clip_mask = (Pixmap)ckalloc(sizeof(TkpClipMask));
|
387 |
|
|
}
|
388 |
|
|
((TkpClipMask*)gc->clip_mask)->type = TKP_CLIP_PIXMAP;
|
389 |
|
|
((TkpClipMask*)gc->clip_mask)->value.pixmap = pixmap;
|
390 |
|
|
}
|
391 |
|
|
|
392 |
|
|
/*
|
393 |
|
|
* Some additional dummy functions (hopefully implemented soon).
|
394 |
|
|
*/
|
395 |
|
|
|
396 |
|
|
Cursor
|
397 |
|
|
XCreateFontCursor(display, shape)
|
398 |
|
|
Display* display;
|
399 |
|
|
unsigned int shape;
|
400 |
|
|
{
|
401 |
|
|
return (Cursor) 0;
|
402 |
|
|
}
|
403 |
|
|
|
404 |
|
|
void
|
405 |
|
|
XDrawImageString(display, d, gc, x, y, string, length)
|
406 |
|
|
Display* display;
|
407 |
|
|
Drawable d;
|
408 |
|
|
GC gc;
|
409 |
|
|
int x;
|
410 |
|
|
int y;
|
411 |
|
|
_Xconst char* string;
|
412 |
|
|
int length;
|
413 |
|
|
{
|
414 |
|
|
}
|
415 |
|
|
|
416 |
|
|
void
|
417 |
|
|
XDrawPoint(display, d, gc, x, y)
|
418 |
|
|
Display* display;
|
419 |
|
|
Drawable d;
|
420 |
|
|
GC gc;
|
421 |
|
|
int x;
|
422 |
|
|
int y;
|
423 |
|
|
{
|
424 |
|
|
XDrawLine(display, d, gc, x, y, x, y);
|
425 |
|
|
}
|
426 |
|
|
|
427 |
|
|
void
|
428 |
|
|
XDrawPoints(display, d, gc, points, npoints, mode)
|
429 |
|
|
Display* display;
|
430 |
|
|
Drawable d;
|
431 |
|
|
GC gc;
|
432 |
|
|
XPoint* points;
|
433 |
|
|
int npoints;
|
434 |
|
|
int mode;
|
435 |
|
|
{
|
436 |
|
|
int i;
|
437 |
|
|
|
438 |
|
|
for (i=0; i<npoints; i++) {
|
439 |
|
|
XDrawPoint(display, d, gc, points[i].x, points[i].y);
|
440 |
|
|
}
|
441 |
|
|
}
|
442 |
|
|
|
443 |
|
|
#ifndef MAC_TCL
|
444 |
|
|
void
|
445 |
|
|
XDrawSegments(display, d, gc, segments, nsegments)
|
446 |
|
|
Display* display;
|
447 |
|
|
Drawable d;
|
448 |
|
|
GC gc;
|
449 |
|
|
XSegment* segments;
|
450 |
|
|
int nsegments;
|
451 |
|
|
{
|
452 |
|
|
}
|
453 |
|
|
#endif
|
454 |
|
|
|
455 |
|
|
char *
|
456 |
|
|
XFetchBuffer(display, nbytes_return, buffer)
|
457 |
|
|
Display* display;
|
458 |
|
|
int* nbytes_return;
|
459 |
|
|
int buffer;
|
460 |
|
|
{
|
461 |
|
|
return (char *) 0;
|
462 |
|
|
}
|
463 |
|
|
|
464 |
|
|
Status XFetchName(display, w, window_name_return)
|
465 |
|
|
Display* display;
|
466 |
|
|
Window w;
|
467 |
|
|
char** window_name_return;
|
468 |
|
|
{
|
469 |
|
|
return (Status) 0;
|
470 |
|
|
}
|
471 |
|
|
|
472 |
|
|
Atom *XListProperties(display, w, num_prop_return)
|
473 |
|
|
Display* display;
|
474 |
|
|
Window w;
|
475 |
|
|
int* num_prop_return;
|
476 |
|
|
{
|
477 |
|
|
return (Atom *) 0;
|
478 |
|
|
}
|
479 |
|
|
|
480 |
|
|
void
|
481 |
|
|
XMapRaised(display, w)
|
482 |
|
|
Display* display;
|
483 |
|
|
Window w;
|
484 |
|
|
{
|
485 |
|
|
}
|
486 |
|
|
|
487 |
|
|
void
|
488 |
|
|
XPutImage(display, d, gc, image, src_x, src_y, dest_x, dest_y, width, height)
|
489 |
|
|
Display* display;
|
490 |
|
|
Drawable d;
|
491 |
|
|
GC gc;
|
492 |
|
|
XImage* image;
|
493 |
|
|
int src_x;
|
494 |
|
|
int src_y;
|
495 |
|
|
int dest_x;
|
496 |
|
|
int dest_y;
|
497 |
|
|
unsigned int width;
|
498 |
|
|
unsigned int height;
|
499 |
|
|
{
|
500 |
|
|
}
|
501 |
|
|
|
502 |
|
|
void XQueryTextExtents(display, font_ID, string, nchars, direction_return,
|
503 |
|
|
font_ascent_return, font_descent_return, overall_return)
|
504 |
|
|
Display* display;
|
505 |
|
|
XID font_ID;
|
506 |
|
|
_Xconst char* string;
|
507 |
|
|
int nchars;
|
508 |
|
|
int* direction_return;
|
509 |
|
|
int* font_ascent_return;
|
510 |
|
|
int* font_descent_return;
|
511 |
|
|
XCharStruct* overall_return;
|
512 |
|
|
{
|
513 |
|
|
}
|
514 |
|
|
|
515 |
|
|
void
|
516 |
|
|
XReparentWindow(display, w, parent, x, y)
|
517 |
|
|
Display* display;
|
518 |
|
|
Window w;
|
519 |
|
|
Window parent;
|
520 |
|
|
int x;
|
521 |
|
|
int y;
|
522 |
|
|
{
|
523 |
|
|
}
|
524 |
|
|
|
525 |
|
|
void
|
526 |
|
|
XRotateBuffers(display, rotate)
|
527 |
|
|
Display* display;
|
528 |
|
|
int rotate;
|
529 |
|
|
{
|
530 |
|
|
}
|
531 |
|
|
|
532 |
|
|
void
|
533 |
|
|
XStoreBuffer(display, bytes, nbytes, buffer)
|
534 |
|
|
Display* display;
|
535 |
|
|
_Xconst char* bytes;
|
536 |
|
|
int nbytes;
|
537 |
|
|
int buffer;
|
538 |
|
|
{
|
539 |
|
|
}
|
540 |
|
|
|
541 |
|
|
void
|
542 |
|
|
XUndefineCursor(display, w)
|
543 |
|
|
Display* display;
|
544 |
|
|
Window w;
|
545 |
|
|
{
|
546 |
|
|
}
|
547 |
|
|
|
548 |
dashley |
69 |
/* End of xgc.c */
|