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gtk/gdk/gdkdraw.c
Tim Janik f734007af4 added a bunch of checks for window != NULL and private->destroyed. (don't 
Mon Jan 26 02:15:29 1998  Tim Janik  <timj@gimp.org>

        * gdk/gdkdraw.c:
        * gdk/gdkgc.c:
        * gdk/gdkimage.c:
        * gdk/gdkinput.c:
        * gdk/gdkpixmap.c:
        * gdk/gdkproperty.c:
        * gdk/gdkselection.c:
        * gdk/gdkwindow.c: added a bunch of checks for window != NULL and
          private->destroyed.
(don't trust this cvs commit message, i didn't modify that many files!)
1998-01-26 01:20:14 +00:00

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/* GDK - The GIMP Drawing Kit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <X11/Xlib.h>
#include <X11/Xos.h>
#include "gdk.h"
#include "gdkprivate.h"
void
gdk_draw_point (GdkDrawable *drawable,
GdkGC *gc,
gint x,
gint y)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
XDrawPoint (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y);
}
void
gdk_draw_line (GdkDrawable *drawable,
GdkGC *gc,
gint x1,
gint y1,
gint x2,
gint y2)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
XDrawLine (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x1, y1, x2, y2);
}
void
gdk_draw_rectangle (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = drawable_private->width;
if (height == -1)
height = drawable_private->height;
if (filled)
XFillRectangle (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, width, height);
else
XDrawRectangle (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, width, height);
}
void
gdk_draw_arc (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
gint x,
gint y,
gint width,
gint height,
gint angle1,
gint angle2)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = drawable_private->width;
if (height == -1)
height = drawable_private->height;
if (filled)
XFillArc (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, width, height, angle1, angle2);
else
XDrawArc (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, width, height, angle1, angle2);
}
void
gdk_draw_polygon (GdkDrawable *drawable,
GdkGC *gc,
gint filled,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (filled)
{
XFillPolygon (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, (XPoint*) points, npoints, Complex, CoordModeOrigin);
}
else
{
XDrawLines (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, (XPoint*) points, npoints, CoordModeOrigin);
if ((points[0].x != points[npoints-1].x) ||
(points[0].y != points[npoints-1].y))
XDrawLine (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, points[npoints-1].x, points[npoints-1].y,
points[0].x, points[0].y);
}
}
/* gdk_draw_string
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
void
gdk_draw_string (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *string)
{
GdkWindowPrivate *drawable_private;
GdkFontPrivate *font_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (string != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
if (font->type == GDK_FONT_FONT)
{
XFontStruct *xfont = (XFontStruct *) font_private->xfont;
XSetFont(drawable_private->xdisplay, gc_private->xgc, xfont->fid);
if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
{
XDrawString (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, string, strlen (string));
}
else
{
XDrawString16 (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, (XChar2b *) string,
strlen (string) / 2);
}
}
else if (font->type == GDK_FONT_FONTSET)
{
XFontSet fontset = (XFontSet) font_private->xfont;
XmbDrawString (drawable_private->xdisplay, drawable_private->xwindow,
fontset, gc_private->xgc, x, y, string, strlen (string));
}
else
g_error("undefined font type\n");
}
/* gdk_draw_text
*
* Modified by Li-Da Lho to draw 16 bits and Multibyte strings
*
* Interface changed: add "GdkFont *font" to specify font or fontset explicitely
*/
void
gdk_draw_text (GdkDrawable *drawable,
GdkFont *font,
GdkGC *gc,
gint x,
gint y,
const gchar *text,
gint text_length)
{
GdkWindowPrivate *drawable_private;
GdkFontPrivate *font_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (font != NULL);
g_return_if_fail (gc != NULL);
g_return_if_fail (text != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
font_private = (GdkFontPrivate*) font;
if (font->type == GDK_FONT_FONT)
{
XFontStruct *xfont = (XFontStruct *) font_private->xfont;
XSetFont(drawable_private->xdisplay, gc_private->xgc, xfont->fid);
if ((xfont->min_byte1 == 0) && (xfont->max_byte1 == 0))
{
XDrawString (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, text, text_length);
}
else
{
XDrawString16 (drawable_private->xdisplay, drawable_private->xwindow,
gc_private->xgc, x, y, (XChar2b *) text, text_length / 2);
}
}
else if (font->type == GDK_FONT_FONTSET)
{
XFontSet fontset = (XFontSet) font_private->xfont;
XmbDrawString (drawable_private->xdisplay, drawable_private->xwindow,
fontset, gc_private->xgc, x, y, text, text_length);
}
else
g_error("undefined font type\n");
}
void
gdk_draw_pixmap (GdkDrawable *drawable,
GdkGC *gc,
GdkPixmap *src,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkWindowPrivate *drawable_private;
GdkWindowPrivate *src_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (src != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
src_private = (GdkWindowPrivate*) src;
if (drawable_private->destroyed || src_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
if (width == -1)
width = src_private->width;
if (height == -1)
height = src_private->height;
XCopyArea (drawable_private->xdisplay,
src_private->xwindow,
drawable_private->xwindow,
gc_private->xgc,
xsrc, ysrc,
width, height,
xdest, ydest);
}
void
gdk_draw_image (GdkDrawable *drawable,
GdkGC *gc,
GdkImage *image,
gint xsrc,
gint ysrc,
gint xdest,
gint ydest,
gint width,
gint height)
{
GdkImagePrivate *image_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail (image != NULL);
g_return_if_fail (gc != NULL);
image_private = (GdkImagePrivate*) image;
g_return_if_fail (image_private->image_put != NULL);
if (width == -1)
width = image->width;
if (height == -1)
height = image->height;
(* image_private->image_put) (drawable, gc, image, xsrc, ysrc,
xdest, ydest, width, height);
}
void
gdk_draw_points (GdkDrawable *drawable,
GdkGC *gc,
GdkPoint *points,
gint npoints)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
g_return_if_fail (drawable != NULL);
g_return_if_fail ((points != NULL) && (npoints > 0));
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
XDrawPoints (drawable_private->xdisplay,
drawable_private->xwindow,
gc_private->xgc,
(XPoint *) points,
npoints,
CoordModeOrigin);
}
void
gdk_draw_segments (GdkDrawable *drawable,
GdkGC *gc,
GdkSegment *segs,
gint nsegs)
{
GdkWindowPrivate *drawable_private;
GdkGCPrivate *gc_private;
if (nsegs <= 0)
return;
g_return_if_fail (drawable != NULL);
g_return_if_fail (segs != NULL);
g_return_if_fail (gc != NULL);
drawable_private = (GdkWindowPrivate*) drawable;
if (drawable_private->destroyed)
return;
gc_private = (GdkGCPrivate*) gc;
XDrawSegments (drawable_private->xdisplay,
drawable_private->xwindow,
gc_private->xgc,
(XSegment *) segs,
nsegs);
}
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