dlls/gdi32/tests/clipping.c

   1 /*
   2  * Unit test suite for clipping
   3  *
   4  * Copyright 2005 Huw Davies
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "wine/test.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winuser.h"
  25
  26 static void test_GetRandomRgn(void)
  27 {
  28     HWND hwnd = CreateWindowExA(0,"BUTTON","test",WS_VISIBLE|WS_POPUP,0,0,100,100,GetDesktopWindow(),0,0,0);
  29     HDC hdc;
  30     HRGN hrgn = CreateRectRgn(0, 0, 0, 0);
  31     int ret;
  32     RECT rc, rc2;
  33     RECT ret_rc, window_rc;
  34
  35     ok( hwnd != 0, "CreateWindow failed\n" );
  36
  37     SetRect(&window_rc, 400, 300, 500, 400);
  38     MoveWindow(hwnd, window_rc.left, window_rc.top, window_rc.right - window_rc.left, window_rc.bottom - window_rc.top, FALSE);
  39     hdc = GetDC(hwnd);
  40
  41     ret = GetRandomRgn(hdc, hrgn, 1);
  42     ok(ret == 0, "GetRandomRgn rets %d\n", ret);
  43     ret = GetRandomRgn(hdc, hrgn, 2);
  44     ok(ret == 0, "GetRandomRgn rets %d\n", ret);
  45     ret = GetRandomRgn(hdc, hrgn, 3);
  46     ok(ret == 0, "GetRandomRgn rets %d\n", ret);
  47
  48     /* Set a clip region */
  49     SetRect(&rc, 20, 20, 80, 80);
  50     IntersectClipRect(hdc, rc.left, rc.top, rc.right, rc.bottom);
  51
  52     ret = GetRandomRgn(hdc, hrgn, 1);
  53     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  54     GetRgnBox(hrgn, &ret_rc);
  55     ok(EqualRect(&rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  56        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  57
  58     ret = GetRandomRgn(hdc, hrgn, 2);
  59     ok(ret == 0, "GetRandomRgn rets %d\n", ret);
  60
  61     ret = GetRandomRgn(hdc, hrgn, 3);
  62     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  63     GetRgnBox(hrgn, &ret_rc);
  64     ok(EqualRect(&rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  65        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  66
  67     /* Move the clip to the meta and clear the clip */
  68     SetMetaRgn(hdc);
  69
  70     ret = GetRandomRgn(hdc, hrgn, 1);
  71     ok(ret == 0, "GetRandomRgn rets %d\n", ret);
  72     ret = GetRandomRgn(hdc, hrgn, 2);
  73     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  74     GetRgnBox(hrgn, &ret_rc);
  75     ok(EqualRect(&rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  76        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  77
  78     ret = GetRandomRgn(hdc, hrgn, 3);
  79     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  80     GetRgnBox(hrgn, &ret_rc);
  81     ok(EqualRect(&rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  82        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  83
  84     /* Set a new clip (still got the meta) */
  85     SetRect(&rc2, 10, 30, 70, 90);
  86     IntersectClipRect(hdc, rc2.left, rc2.top, rc2.right, rc2.bottom);
  87
  88     ret = GetRandomRgn(hdc, hrgn, 1);
  89     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  90     GetRgnBox(hrgn, &ret_rc);
  91     ok(EqualRect(&rc2, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  92        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  93
  94     ret = GetRandomRgn(hdc, hrgn, 2);
  95     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
  96     GetRgnBox(hrgn, &ret_rc);
  97     ok(EqualRect(&rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
  98        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
  99
 100     IntersectRect(&rc2, &rc, &rc2);
 101
 102     ret = GetRandomRgn(hdc, hrgn, 3);
 103     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
 104     GetRgnBox(hrgn, &ret_rc);
 105     ok(EqualRect(&rc2, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
 106        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
 107
 108
 109     ret = GetRandomRgn(hdc, hrgn, SYSRGN);
 110     ok(ret != 0, "GetRandomRgn rets %d\n", ret);
 111     GetRgnBox(hrgn, &ret_rc);
 112     if(GetVersion() & 0x80000000)
 113         OffsetRect(&window_rc, -window_rc.left, -window_rc.top);
 114     ok(EqualRect(&window_rc, &ret_rc), "GetRandomRgn %d,%d - %d,%d\n",
 115        ret_rc.left, ret_rc.top, ret_rc.right, ret_rc.bottom);
 116
 117     DeleteObject(hrgn);
 118     ReleaseDC(hwnd, hdc);
 119     DestroyWindow(hwnd);
 120 }
 121
 122 START_TEST(clipping)
 123 {
 124     test_GetRandomRgn();
 125 }