rostests/apitests/gdi32/GetClipBox.c

   1 /*
   2  * PROJECT:         ReactOS api tests
   3  * LICENSE:         GPL - See COPYING in the top level directory
   4  * PURPOSE:         Test for GetClipBox
   5  * PROGRAMMERS:     Timo Kreuzer
   6  */
   7
   8 #include <apitest.h>
   9
  10 #include <wingdi.h>
  11 #include <winuser.h>
  12
  13 #define ok_rect(_prc, _left, _top, _right, _bottom) \
  14     ok_int((_prc)->left, _left); \
  15     ok_int((_prc)->top, _top); \
  16     ok_int((_prc)->right, _right); \
  17     ok_int((_prc)->bottom, _bottom); \
  18
  19 void Test_GetClipBox()
  20 {
  21     HWND hWnd;
  22     HDC hdc;
  23     RECT rect;
  24     HRGN hrgn, hrgn2;
  25     int ret;
  26
  27     /* Create a window */
  28     hWnd = CreateWindowW(L"BUTTON", L"TestWindow", WS_OVERLAPPEDWINDOW | WS_VISIBLE,
  29                         CW_USEDEFAULT, CW_USEDEFAULT, 100, 100,
  30                         NULL, NULL, 0, 0);
  31     ok(hWnd != NULL, "CreateWindowW failed\n");
  32     if (hWnd == NULL)
  33     {
  34         return;
  35     }
  36
  37     hdc = GetDC(hWnd);
  38
  39     /* Test invalid DC */
  40     SetLastError(ERROR_SUCCESS);
  41     ret = GetClipBox((HDC)0x12345, &rect);
  42     ok(ret == ERROR, "Expected ERROR, got %d\n", ret);
  43     ok(GetLastError() == 0, "Expected 0, got %ld\n", GetLastError());
  44
  45     //ret = GetClipBox(hdc, &rect);
  46     //ok_int(ret, SIMPLEREGION);
  47     //ok_rect(&rect, 0, 0, 132, 68);
  48
  49     /* Create a clip region */
  50     hrgn = CreateRectRgn(5, 7, 50, 50);
  51     SelectClipRgn(hdc, hrgn);
  52     DeleteObject(hrgn);
  53     ret = GetClipBox(hdc, &rect);
  54     ok_int(ret, SIMPLEREGION);
  55     ok_rect(&rect, 5, 7, 50, 50);
  56
  57     /* Set clip region as meta region */
  58     SetMetaRgn(hdc);
  59
  60     /* Create a new clip region */
  61     hrgn = CreateRectRgn(10, 10, 100, 100);
  62     SelectClipRgn(hdc, hrgn);
  63     DeleteObject(hrgn);
  64     ret = GetClipBox(hdc, &rect);
  65     ok_int(ret, SIMPLEREGION);
  66     ok_rect(&rect, 10, 10, 50, 50);
  67
  68     /* Create an empty clip region */
  69     hrgn = CreateRectRgn(10, 10, 10, 30);
  70     SelectClipRgn(hdc, hrgn);
  71     DeleteObject(hrgn);
  72     ret = GetClipBox(hdc, &rect);
  73     ok_int(ret, NULLREGION);
  74     ok_rect(&rect, 0, 0, 0, 0);
  75
  76     /* Create a complex region */
  77     hrgn = CreateRectRgn(10, 10, 30, 30);
  78     hrgn2 = CreateRectRgn(20, 20, 60, 60);
  79     ok_int(CombineRgn(hrgn, hrgn, hrgn2, RGN_OR), COMPLEXREGION);
  80     SelectClipRgn(hdc, hrgn);
  81     DeleteObject(hrgn2);
  82     ret = GetClipBox(hdc, &rect);
  83     ok_int(ret, COMPLEXREGION);
  84     ok_rect(&rect, 10, 10, 50, 50);
  85
  86     /* Set scaling but keep the mapping mode (viewport should not be changed) */
  87     ok_int(SetViewportExtEx(hdc, 1000, 1000, NULL), 1);
  88     ret = GetClipBox(hdc, &rect);
  89     ok_int(ret, COMPLEXREGION);
  90     ok_rect(&rect, 10, 10, 50, 50);
  91
  92     /* Set unisotropic mode, ClipBox should be unchanged */
  93     ok_int(SetMapMode(hdc, MM_ANISOTROPIC), 1);
  94     ret = GetClipBox(hdc, &rect);
  95     ok_int(ret, COMPLEXREGION);
  96     ok_rect(&rect, 10, 10, 50, 50);
  97
  98     /* Now set viewport again */
  99     ok_int(SetViewportExtEx(hdc, 200, 400, NULL), 1);
 100     ret = GetClipBox(hdc, &rect);
 101     ok_int(ret, COMPLEXREGION); // obviously some special secret feature...
 102     ok_rect(&rect, 0, 0, 0, 0);
 103
 104     /* Reset clip region */
 105     SelectClipRgn(hdc, NULL);
 106     SetMetaRgn(hdc);
 107     ret = GetClipBox(hdc, &rect);
 108     ok_int(ret, SIMPLEREGION);
 109     ok_rect(&rect, 0, 0, 0, 0);
 110
 111     hrgn = CreateRectRgn(10, 10, 190, 190);
 112     SelectClipRgn(hdc, hrgn);
 113     ret = GetClipBox(hdc, &rect);
 114     ok_int(ret, SIMPLEREGION);
 115     ok_rect(&rect, 0, 0, 0, 0);
 116
 117     /* Now also set the window extension */
 118     ok_int(SetWindowExtEx(hdc, 400, 600, NULL), 1);
 119     ret = GetClipBox(hdc, &rect);
 120     ok_int(ret, SIMPLEREGION);
 121     ok_rect(&rect, 20, 15, 100, 75);
 122
 123     hrgn = CreateRectRgn(30, 30, 300, 300);
 124     SelectClipRgn(hdc, hrgn);
 125     SetMetaRgn(hdc);
 126     ret = GetClipBox(hdc, &rect);
 127     ok_int(ret, SIMPLEREGION);
 128     ok_rect(&rect, 60, 45, 100, 75);
 129
 130     ReleaseDC(hWnd, hdc);
 131     DestroyWindow(hWnd);
 132 }
 133
 134 START_TEST(GetClipBox)
 135 {
 136     Test_GetClipBox();
 137 }
 138