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