1 /* GDK - The GIMP Drawing Kit
2 * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, write to the Free
16 * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 gdk_rectangle_intersect (GdkRectangle *src1,
27 gint src1_x2, src1_y2;
28 gint src2_x2, src2_y2;
31 g_return_val_if_fail (src1 != NULL, FALSE);
32 g_return_val_if_fail (src2 != NULL, FALSE);
33 g_return_val_if_fail (dest != NULL, FALSE);
37 if (src2->x < src1->x)
45 src1_x2 = src1->x + src1->width;
46 src2_x2 = src2->x + src2->width;
48 if (src2->x < src1_x2)
50 if (src1_x2 < src2_x2)
51 dest->width = src1_x2 - dest->x;
53 dest->width = src2_x2 - dest->x;
55 if (src2->y < src1->y)
63 src1_y2 = src1->y + src1->height;
64 src2_y2 = src2->y + src2->height;
66 if (src2->y < src1_y2)
70 if (src1_y2 < src2_y2)
71 dest->height = src1_y2 - dest->y;
73 dest->height = src2_y2 - dest->y;
75 if (dest->height == 0)