dlls/gdi/tests/metafile.c

   1 /*
   2  * Unit tests for metafile functions
   3  *
   4  * Copyright (c) 2002 Dmitry Timoshkov
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <assert.h>
  22
  23 #include "wine/test.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "winuser.h"
  27 #include "winerror.h"
  28
  29 static LOGFONTA orig_lf;
  30 static BOOL emr_processed = FALSE;
  31
  32 static int CALLBACK emf_enum_proc(HDC hdc, HANDLETABLE *handle_table,
  33     const ENHMETARECORD *emr, int n_objs, LPARAM param)
  34 {
  35     static int n_record;
  36     DWORD i;
  37     const INT *dx;
  38     INT *orig_dx = (INT *)param;
  39     LOGFONTA device_lf;
  40
  41     trace("hdc %p, emr->iType %ld, emr->nSize %ld, param %p\n",
  42            hdc, emr->iType, emr->nSize, (void *)param);
  43
  44     PlayEnhMetaFileRecord(hdc, handle_table, emr, n_objs);
  45
  46     switch (emr->iType)
  47     {
  48     case EMR_HEADER:
  49         n_record = 0;
  50         break;
  51
  52     case EMR_EXTTEXTOUTA:
  53     {
  54         const EMREXTTEXTOUTA *emr_ExtTextOutA = (const EMREXTTEXTOUTA *)emr;
  55         dx = (const INT *)((const char *)emr + emr_ExtTextOutA->emrtext.offDx);
  56
  57         ok(GetObjectA(GetCurrentObject(hdc, OBJ_FONT), sizeof(device_lf), &device_lf) == sizeof(device_lf),
  58            "GetObjectA error %ld\n", GetLastError());
  59
  60         /* compare up to lfOutPrecision, other values are not interesting,
  61          * and in fact sometimes arbitrary adapted by Win9x.
  62          */
  63         ok(!memcmp(&orig_lf, &device_lf, FIELD_OFFSET(LOGFONTA, lfOutPrecision)), "fonts don't match\n");
  64         ok(!lstrcmpA(orig_lf.lfFaceName, device_lf.lfFaceName), "font names don't match\n");
  65
  66         for(i = 0; i < emr_ExtTextOutA->emrtext.nChars; i++)
  67         {
  68             ok(orig_dx[i] == dx[i], "pass %d: dx[%ld] (%d) didn't match %d\n",
  69                                      n_record, i, dx[i], orig_dx[i]);
  70         }
  71         n_record++;
  72         emr_processed = TRUE;
  73         break;
  74     }
  75
  76     case EMR_EXTTEXTOUTW:
  77     {
  78         const EMREXTTEXTOUTW *emr_ExtTextOutW = (const EMREXTTEXTOUTW *)emr;
  79         dx = (const INT *)((const char *)emr + emr_ExtTextOutW->emrtext.offDx);
  80
  81         ok(GetObjectA(GetCurrentObject(hdc, OBJ_FONT), sizeof(device_lf), &device_lf) == sizeof(device_lf),
  82            "GetObjectA error %ld\n", GetLastError());
  83
  84         /* compare up to lfOutPrecision, other values are not interesting,
  85          * and in fact sometimes arbitrary adapted by Win9x.
  86          */
  87         ok(!memcmp(&orig_lf, &device_lf, FIELD_OFFSET(LOGFONTA, lfOutPrecision)), "fonts don't match\n");
  88         ok(!lstrcmpA(orig_lf.lfFaceName, device_lf.lfFaceName), "font names don't match\n");
  89
  90         for(i = 0; i < emr_ExtTextOutW->emrtext.nChars; i++)
  91         {
  92             ok(orig_dx[i] == dx[i], "pass %d: dx[%ld] (%d) didn't match %d\n",
  93                                      n_record, i, dx[i], orig_dx[i]);
  94         }
  95         n_record++;
  96         emr_processed = TRUE;
  97         break;
  98     }
  99
 100     default:
 101         break;
 102     }
 103
 104     return 1;
 105 }
 106
 107 static void test_ExtTextOut(void)
 108 {
 109     HWND hwnd;
 110     HDC hdcDisplay, hdcMetafile;
 111     HENHMETAFILE hMetafile;
 112     HFONT hFont;
 113     static const char text[] = "Simple text to test ExtTextOut on metafiles";
 114     INT i, len, dx[256];
 115     static const RECT rc = { 0, 0, 100, 100 };
 116
 117     assert(sizeof(dx)/sizeof(dx[0]) >= lstrlenA(text));
 118
 119     /* Win9x doesn't play EMFs on invisible windows */
 120     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP | WS_VISIBLE,
 121                            0, 0, 200, 200, 0, 0, 0, NULL);
 122     ok(hwnd != 0, "CreateWindowExA error %ld\n", GetLastError());
 123
 124     hdcDisplay = GetDC(hwnd);
 125     ok(hdcDisplay != 0, "GetDC error %ld\n", GetLastError());
 126
 127     trace("hdcDisplay %p\n", hdcDisplay);
 128
 129     SetMapMode(hdcDisplay, MM_TEXT);
 130
 131     memset(&orig_lf, 0, sizeof(orig_lf));
 132
 133     orig_lf.lfCharSet = ANSI_CHARSET;
 134     orig_lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
 135     orig_lf.lfWeight = FW_DONTCARE;
 136     orig_lf.lfHeight = 7;
 137     orig_lf.lfQuality = DEFAULT_QUALITY;
 138     lstrcpyA(orig_lf.lfFaceName, "Arial");
 139     hFont = CreateFontIndirectA(&orig_lf);
 140     ok(hFont != 0, "CreateFontIndirectA error %ld\n", GetLastError());
 141
 142     hFont = SelectObject(hdcDisplay, hFont);
 143
 144     len = lstrlenA(text);
 145     for (i = 0; i < len; i++)
 146     {
 147         ok(GetCharWidthA(hdcDisplay, text[i], text[i], &dx[i]),
 148            "GetCharWidthA error %ld\n", GetLastError());
 149     }
 150     hFont = SelectObject(hdcDisplay, hFont);
 151
 152     hdcMetafile = CreateEnhMetaFileA(hdcDisplay, NULL, NULL, NULL);
 153     ok(hdcMetafile != 0, "CreateEnhMetaFileA error %ld\n", GetLastError());
 154
 155     trace("hdcMetafile %p\n", hdcMetafile);
 156
 157     ok(GetDeviceCaps(hdcMetafile, TECHNOLOGY) == DT_RASDISPLAY,
 158        "GetDeviceCaps(TECHNOLOGY) has to return DT_RASDISPLAY for a display based EMF\n");
 159
 160     hFont = SelectObject(hdcMetafile, hFont);
 161
 162     /* 1. pass NULL lpDx */
 163     ok(ExtTextOutA(hdcMetafile, 0, 0, 0, &rc, text, lstrlenA(text), NULL),
 164        "ExtTextOutA error %ld\n", GetLastError());
 165
 166     /* 2. pass custom lpDx */
 167     ok(ExtTextOutA(hdcMetafile, 0, 20, 0, &rc, text, lstrlenA(text), dx),
 168        "ExtTextOutA error %ld\n", GetLastError());
 169
 170     hFont = SelectObject(hdcMetafile, hFont);
 171     ok(DeleteObject(hFont), "DeleteObject error %ld\n", GetLastError());
 172
 173     hMetafile = CloseEnhMetaFile(hdcMetafile);
 174     ok(hMetafile != 0, "CloseEnhMetaFile error %ld\n", GetLastError());
 175
 176     ok(!GetObjectType(hdcMetafile), "CloseEnhMetaFile has to destroy metafile hdc\n");
 177
 178     ok(PlayEnhMetaFile(hdcDisplay, hMetafile, &rc), "PlayEnhMetaFile error %ld\n", GetLastError());
 179
 180     ok(EnumEnhMetaFile(hdcDisplay, hMetafile, emf_enum_proc, dx, &rc),
 181        "EnumEnhMetaFile error %ld\n", GetLastError());
 182
 183     ok(emr_processed, "EnumEnhMetaFile couldn't find EMR_EXTTEXTOUTA or EMR_EXTTEXTOUTW record\n");
 184
 185     ok(!EnumEnhMetaFile(hdcDisplay, hMetafile, emf_enum_proc, dx, NULL),
 186        "A valid hdc has to require a valid rc\n");
 187
 188     ok(DeleteEnhMetaFile(hMetafile), "DeleteEnhMetaFile error %ld\n", GetLastError());
 189     ok(ReleaseDC(hwnd, hdcDisplay), "ReleaseDC error %ld\n", GetLastError());
 190 }
 191
 192 START_TEST(metafile)
 193 {
 194     test_ExtTextOut();
 195 }