dlls/user32/tests/uitools.c

   1 /* Unit test suite for user interface functions
   2  *
   3  * Copyright 2009 Nikolay Sivov
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #define WINE_NO_INLINE_RECT
  21 #include "wine/test.h"
  22 #include "winbase.h"
  23 #include "wingdi.h"
  24 #include "winuser.h"
  25
  26 static void test_FillRect(void)
  27 {
  28     HDC hdc, hdcmem;
  29     DWORD bits[64];
  30     HBITMAP hbmp, oldhbmp;
  31     COLORREF col;
  32     HBRUSH old_brush;
  33     RECT r;
  34
  35     /* fill bitmap data with white */
  36     memset(bits, 0xff, sizeof(bits));
  37
  38     hdc = GetDC(0);
  39     ok( hdc != NULL, "CreateDC rets %p\n", hdc);
  40     /* create a memory dc */
  41     hdcmem = CreateCompatibleDC(hdc);
  42     ok(hdcmem != NULL, "CreateCompatibleDC rets %p\n", hdcmem);
  43     /* test monochrome bitmap: should always work */
  44     hbmp = CreateBitmap(32, 32, 1, 1, bits);
  45     ok(hbmp != NULL, "CreateBitmap returns %p\n", hbmp);
  46     oldhbmp = SelectObject(hdcmem, hbmp);
  47     ok(oldhbmp != NULL, "SelectObject returned NULL\n"); /* a memdc always has a bitmap selected */
  48     col = GetPixel(hdcmem, 0, 0);
  49     ok( col == 0xffffff, "GetPixel returned %08x, expected 0xffffff\n", col);
  50
  51     /* select black brush */
  52     old_brush = SelectObject(hdcmem, GetStockObject(BLACK_BRUSH));
  53     SetRect(&r, 0, 0, 5, 5);
  54     FillRect(hdcmem, &r, 0);
  55     SelectObject(hdcmem, old_brush);
  56     /* bitmap filled with last selected brush */
  57     col = GetPixel(hdcmem, 0, 0);
  58     ok(col == 0, "GetPixel returned %08x, expected 0\n", col);
  59
  60     SelectObject(hdcmem, oldhbmp);
  61     DeleteObject(hbmp);
  62     DeleteDC(hdcmem);
  63     ReleaseDC(0, hdc);
  64 }
  65
  66 static void test_SubtractRect(void)
  67 {
  68     RECT rect1;
  69     RECT rect2;
  70     RECT rectr;
  71     BOOL result;
  72
  73     /* source rectangles don't intersect */
  74     SetRect(&rect1, 50, 50, 150, 100);
  75     SetRect(&rect2, 250, 200, 1500, 1000);
  76     result = SubtractRect(&rectr, &rect1, &rect2);
  77     ok(result, "SubtractRect returned FALSE but subtraction should not be empty\n");
  78     ok(result && rectr.left == 50 && rectr.top == 50 && rectr.right ==150
  79        && rectr.bottom == 100, "wrong rect subtraction of SubtractRect (dest rect=%s)\n",
  80        wine_dbgstr_rect(&rectr));
  81
  82     /* source rect 2 partially overlaps rect 1 */
  83     SetRect(&rect1, 2431, 626, 3427, 1608);
  84     SetRect(&rect2, 2499, 626, 3427, 1608);
  85     result = SubtractRect(&rectr, &rect1, &rect2);
  86     ok(result, "SubtractRect returned FALSE but subtraction should not be empty\n");
  87     ok(result && rectr.left == 2431 && rectr.top == 626 && rectr.right == 2499
  88        && rectr.bottom == 1608, "wrong rect subtraction of SubtractRect (dest rect=%s)\n",
  89        wine_dbgstr_rect(&rectr));
  90
  91     /* source rect 2 partially overlaps rect 1 - dest is src rect 2 */
  92     SetRect(&rect1, 2431, 626, 3427, 1608);
  93     SetRect(&rect2, 2499, 626, 3427, 1608);
  94     result = SubtractRect(&rect2, &rect1, &rect2);
  95     ok(result, "SubtractRect returned FALSE but subtraction should not be empty\n");
  96     ok(result && rectr.left == 2431 && rectr.top == 626 && rectr.right == 2499
  97        && rectr.bottom == 1608, "wrong rect subtraction of SubtractRect (dest rect=%s)\n",
  98        wine_dbgstr_rect(&rectr));
  99
 100     /* source rect 2 completely overlaps rect 1 */
 101     SetRect(&rect1, 250, 250, 400, 500);
 102     SetRect(&rect2, 50, 50, 1500, 1000);
 103     result = SubtractRect(&rectr, &rect1, &rect2);
 104     ok(!result, "SubtractRect returned TRUE but subtraction should be empty (dest rect=%s)\n",
 105        wine_dbgstr_rect(&rectr));
 106
 107     /* source rect 2 completely overlaps rect 1 - dest is src rect 2 */
 108     SetRect(&rect1, 250, 250, 400, 500);
 109     SetRect(&rect2, 50, 50, 1500, 1000);
 110     result = SubtractRect(&rect2, &rect1, &rect2);
 111     ok(!result, "SubtractRect returned TRUE but subtraction should be empty (dest rect=%s)\n",
 112        wine_dbgstr_rect(&rect2));
 113 }
 114
 115 static void test_EqualRect(void)
 116 {
 117     RECT rect1, rect2;
 118     BOOL ret;
 119
 120     SetRect(&rect1, 0, 0, 0, 0);
 121     SetRect(&rect2, 1, 1, 1, 1);
 122
 123     ret = EqualRect(NULL, NULL);
 124     ok(!ret, "got %d\n", ret);
 125
 126     ret = EqualRect(&rect1, NULL);
 127     ok(!ret, "got %d\n", ret);
 128
 129     ret = EqualRect(NULL, &rect2);
 130     ok(!ret, "got %d\n", ret);
 131
 132     ret = EqualRect(&rect1, &rect2);
 133     ok(!ret, "got %d\n", ret);
 134
 135     SetRect(&rect1, 0, 0, 10, 10);
 136     SetRect(&rect2, 10, 10, 0, 0);
 137
 138     ret = EqualRect(&rect1, &rect2);
 139     ok(!ret, "got %d\n", ret);
 140
 141     ret = EqualRect(&rect1, &rect1);
 142     ok(ret, "got %d\n", ret);
 143
 144     rect2 = rect1;
 145     ret = EqualRect(&rect1, &rect2);
 146     ok(ret, "got %d\n", ret);
 147 }
 148
 149 static void test_IsRectEmpty(void)
 150 {
 151     BOOL ret;
 152     unsigned int i;
 153     static const struct {
 154         RECT rect;
 155         BOOL ret;
 156     } rtest[] = {
 157         {{0, 0, 0, 0}, TRUE},
 158         {{127, 131, 127, 131}, TRUE},
 159         {{MAXLONG, MAXLONG, MAXLONG, MAXLONG}, TRUE},
 160         {{-1, -1, -1, -1}, TRUE},
 161         {{-2011, -2017, -2011, -2017}, TRUE},
 162         {{MINLONG, MINLONG, MINLONG, MINLONG}, TRUE},
 163         /* Only width or height are 0 */
 164         {{31, 37, 31, 41}, TRUE},
 165         {{881, 883, 887, 883}, TRUE},
 166         {{-1721, 1723, -1721, 7213}, TRUE},
 167         /* Negative width and/or height */
 168         {{11, 13, 5, 7}, TRUE},
 169         {{-11, -13, -19, -23}, TRUE},
 170         {{11, 13, -17, 19}, TRUE},
 171         {{11, 13, 17, 11}, TRUE},
 172         /* Non empty rects */
 173         {{101, 103, 107, 109}, FALSE},
 174         {{1, -9, 7, 3}, FALSE},
 175         {{-109, -107, -103, -101}, FALSE},
 176     };
 177
 178     for (i = 0; i < ARRAY_SIZE(rtest); i++) {
 179         ret = IsRectEmpty(&rtest[i].rect);
 180         ok(ret == rtest[i].ret, "Test %d: IsRectEmpty returned %s for %s\n", i,
 181            ret ? "TRUE" : "FALSE", wine_dbgstr_rect(&rtest[i].rect));
 182     }
 183 }
 184
 185 static void test_SetRect(void)
 186 {
 187     RECT rect;
 188     BOOL ret;
 189
 190     ret = SetRect(NULL, 0, 0, 0, 0);
 191     ok(!ret, "got %d\n", ret);
 192
 193     ret = SetRect(&rect, 1, 2, 3, 4);
 194     ok(ret, "got %d\n", ret);
 195     ok(rect.left == 1 && rect.top == 2 && rect.right == 3 && rect.bottom == 4,
 196         "got wrong rectangle\n");
 197
 198     ret = SetRect(&rect, 10, 10, 5, 5);
 199     ok(ret, "got %d\n", ret);
 200     ok(rect.left == 10 && rect.top == 10 && rect.right == 5 && rect.bottom == 5,
 201         "got wrong rectangle\n");
 202 }
 203
 204 START_TEST(uitools)
 205 {
 206     test_FillRect();
 207     test_SubtractRect();
 208     test_EqualRect();
 209     test_IsRectEmpty();
 210     test_SetRect();
 211 }