gtk/gdk/gdkrectangle.c
Tor Lillqvist 1c84483f3e Support added for building using a GNU toolchain on Win32,
gcc -mno-cygwin (egcs-1.1.2) on cygwin-b20.1.

	* gdk/win32/makefile.cygwin gtk/makefile.cygwin: New files.
	* config.h.win32: Changes for gcc.
	* gdk/gdkrectangle.c: Include gdk.h as <gdk/gdk.h>.
	* gdk/gdkcolor.c: config.h.win32 already defines strcasecmp.
	* gdk/win32/gdkconfig.h: Only the MS compiler has wctype.h.
	* gdk/win32/gdkdnd.c: Protect (unused) OLE2 stuff better.
	Protect shl stuff unavaiilable with mingw32 headers.
	* gdk/win32/gdkevents.c: Fix typo.
	* gdk/win32/gdkglobals.c: Use GDKVAR here also for gcc.
	* gdk/win32/gdkim.c: Use OEM code page for multibyte chars. (?)
	* gdk/win32/gdkinput.c: Use __try __except only with the MS compiler.
	* gdk/win32/gdkprivate.h: Make up for some stuff missing from
	the mingw32 headers.
	* gdk/win32/makefile.msc: Use latest Wintab kit and glib.
	* gtk/gtkfilesel.c: Include <glib.h> early, to get stat->_stat
	definition on Win32. Test for NATIVE_WIN32, not _MSC_VER.
	* gtk/gtkfontsel.c: Protect CHARSET redefinition on Win32.
	Test for NATIVE_WIN32, not _MSC_VER.
	* gtk/gtkmain.c: No use warning about developer version on Win32,
	there aren't any non-developer versions anyhow.
	* gtk/gtkrc.c: Test for NATIVE_WIN32, not _MSC_VER.
	* gtk/makefile.msc: Use pthread from another directory. Minor other
	changes.
1999-04-25 21:55:05 +00:00

109 lines
2.7 KiB
C

/* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-1999. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <gdk/gdk.h>
void
gdk_rectangle_union (GdkRectangle *src1,
GdkRectangle *src2,
GdkRectangle *dest)
{
g_return_if_fail (src1 != NULL);
g_return_if_fail (src2 != NULL);
g_return_if_fail (dest != NULL);
dest->x = MIN (src1->x, src2->x);
dest->y = MIN (src1->y, src2->y);
dest->width = MAX (src1->x + src1->width, src2->x + src2->width) - dest->x;
dest->height = MAX (src1->y + src1->height, src2->y + src2->height) - dest->y;
}
gint
gdk_rectangle_intersect (GdkRectangle *src1,
GdkRectangle *src2,
GdkRectangle *dest)
{
GdkRectangle *temp;
gint src1_x2, src1_y2;
gint src2_x2, src2_y2;
gint return_val;
g_return_val_if_fail (src1 != NULL, FALSE);
g_return_val_if_fail (src2 != NULL, FALSE);
g_return_val_if_fail (dest != NULL, FALSE);
return_val = FALSE;
if (src2->x < src1->x)
{
temp = src1;
src1 = src2;
src2 = temp;
}
dest->x = src2->x;
src1_x2 = src1->x + src1->width;
src2_x2 = src2->x + src2->width;
if (src2->x < src1_x2)
{
if (src1_x2 < src2_x2)
dest->width = src1_x2 - dest->x;
else
dest->width = src2_x2 - dest->x;
if (src2->y < src1->y)
{
temp = src1;
src1 = src2;
src2 = temp;
}
dest->y = src2->y;
src1_y2 = src1->y + src1->height;
src2_y2 = src2->y + src2->height;
if (src2->y < src1_y2)
{
return_val = TRUE;
if (src1_y2 < src2_y2)
dest->height = src1_y2 - dest->y;
else
dest->height = src2_y2 - dest->y;
if (dest->height == 0)
return_val = FALSE;
if (dest->width == 0)
return_val = FALSE;
}
}
return return_val;
}