dlls/user32/tests/text.c

   1 /*
   2  * DrawText tests
   3  *
   4  * Copyright (c) 2004 Zach Gorman
   5  * Copyright 2007 Dmitry Timoshkov
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include <assert.h>
  23
  24 #include "wine/test.h"
  25 #include "winbase.h"
  26 #include "wingdi.h"
  27 #include "winuser.h"
  28 #include "winerror.h"
  29
  30
  31 static void test_DrawTextCalcRect(void)
  32 {
  33     HWND hwnd;
  34     HDC hdc;
  35     HFONT hFont, hOldFont;
  36     LOGFONTA lf;
  37     static CHAR text[] = "Example text for testing DrawText in "
  38       "MM_HIENGLISH mode";
  39     static WCHAR textW[] = {'W','i','d','e',' ','c','h','a','r',' ',
  40         's','t','r','i','n','g','\0'};
  41     static CHAR emptystring[] = "";
  42     static WCHAR emptystringW[] = { 0 };
  43     INT textlen, textheight;
  44     RECT rect = { 0, 0, 100, 0 };
  45     BOOL ret;
  46
  47     /* Initialization */
  48     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP,
  49                            0, 0, 200, 200, 0, 0, 0, NULL);
  50     ok(hwnd != 0, "CreateWindowExA error %u\n", GetLastError());
  51     hdc = GetDC(hwnd);
  52     ok(hdc != 0, "GetDC error %u\n", GetLastError());
  53     trace("hdc %p\n", hdc);
  54     textlen = lstrlenA(text);
  55
  56     /* LOGFONT initialization */
  57     memset(&lf, 0, sizeof(lf));
  58     lf.lfCharSet = ANSI_CHARSET;
  59     lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
  60     lf.lfWeight = FW_DONTCARE;
  61     lf.lfHeight = 0; /* mapping mode dependent */
  62     lf.lfQuality = DEFAULT_QUALITY;
  63     lstrcpyA(lf.lfFaceName, "Arial");
  64
  65     /* DrawText in MM_HIENGLISH with DT_CALCRECT */
  66     SetMapMode(hdc, MM_HIENGLISH);
  67     lf.lfHeight = 100 * 9 / 72; /* 9 point */
  68     hFont = CreateFontIndirectA(&lf);
  69     ok(hFont != 0, "CreateFontIndirectA error %u\n",
  70        GetLastError());
  71     hOldFont = SelectObject(hdc, hFont);
  72
  73     textheight = DrawTextA(hdc, text, textlen, &rect, DT_CALCRECT |
  74        DT_EXTERNALLEADING | DT_WORDBREAK | DT_NOCLIP | DT_LEFT |
  75        DT_NOPREFIX);
  76     ok( textheight, "DrawTextA error %u\n", GetLastError());
  77
  78     trace("MM_HIENGLISH rect.bottom %d\n", rect.bottom);
  79     todo_wine ok(rect.bottom < 0, "In MM_HIENGLISH, DrawText with "
  80        "DT_CALCRECT should return a negative rectangle bottom. "
  81        "(bot=%d)\n", rect.bottom);
  82
  83     SelectObject(hdc, hOldFont);
  84     ret = DeleteObject(hFont);
  85     ok( ret, "DeleteObject error %u\n", GetLastError());
  86
  87
  88     /* DrawText in MM_TEXT with DT_CALCRECT */
  89     SetMapMode(hdc, MM_TEXT);
  90     lf.lfHeight = -MulDiv(9, GetDeviceCaps(hdc,
  91        LOGPIXELSY), 72); /* 9 point */
  92     hFont = CreateFontIndirectA(&lf);
  93     ok(hFont != 0, "CreateFontIndirectA error %u\n",
  94        GetLastError());
  95     hOldFont = SelectObject(hdc, hFont);
  96
  97     textheight = DrawTextA(hdc, text, textlen, &rect, DT_CALCRECT |
  98        DT_EXTERNALLEADING | DT_WORDBREAK | DT_NOCLIP | DT_LEFT |
  99        DT_NOPREFIX);
 100     ok( textheight, "DrawTextA error %u\n", GetLastError());
 101
 102     trace("MM_TEXT rect.bottom %d\n", rect.bottom);
 103     ok(rect.bottom > 0, "In MM_TEXT, DrawText with DT_CALCRECT "
 104        "should return a positive rectangle bottom. (bot=%d)\n",
 105        rect.bottom);
 106
 107     /* empty or null text should in some cases calc an empty rectangle */
 108     /* note: testing the function's return value is useless, it differs
 109      * ( 0 or 1) on every Windows version I tried */
 110     SetRect( &rect, 10,10, 100, 100);
 111     textheight = DrawTextExA(hdc, text, 0, &rect, DT_CALCRECT, NULL );
 112     ok( !(rect.left == rect.right && rect.bottom == rect.top),
 113             "rectangle should NOT be empty.\n");
 114     SetRect( &rect, 10,10, 100, 100);
 115     SetLastError( 0);
 116     textheight = DrawTextExA(hdc, emptystring, -1, &rect, DT_CALCRECT, NULL );
 117     ok( (rect.left == rect.right && rect.bottom == rect.top),
 118             "rectangle should be empty.\n");
 119     SetRect( &rect, 10,10, 100, 100);
 120     SetLastError( 0);
 121     textheight = DrawTextExA(hdc, NULL, -1, &rect, DT_CALCRECT, NULL );
 122     ok( (rect.left == rect.right && rect.bottom == rect.top),
 123             "rectangle should be empty.\n");
 124     SetRect( &rect, 10,10, 100, 100);
 125     textheight = DrawTextExA(hdc, NULL, 0, &rect, DT_CALCRECT, NULL );
 126     ok( !(rect.left == rect.right && rect.bottom == rect.top),
 127             "rectangle should NOT be empty.\n");
 128
 129     /* Wide char versions */
 130     SetRect( &rect, 10,10, 100, 100);
 131     SetLastError( 0);
 132     textheight = DrawTextExW(hdc, textW, 0, &rect, DT_CALCRECT, NULL );
 133     if( GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) {
 134         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 135                 "rectangle should NOT be empty.\n");
 136         SetRect( &rect, 10,10, 100, 100);
 137         textheight = DrawTextExW(hdc, emptystringW, -1, &rect, DT_CALCRECT, NULL );
 138         ok( (rect.left == rect.right && rect.bottom == rect.top),
 139                 "rectangle should be empty.\n");
 140         SetRect( &rect, 10,10, 100, 100);
 141         textheight = DrawTextExW(hdc, NULL, -1, &rect, DT_CALCRECT, NULL );
 142         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 143                 "rectangle should NOT be empty.\n");
 144         SetRect( &rect, 10,10, 100, 100);
 145         textheight = DrawTextExW(hdc, NULL, 0, &rect, DT_CALCRECT, NULL );
 146         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 147                 "rectangle should NOT be empty.\n");
 148     }
 149
 150     SelectObject(hdc, hOldFont);
 151     ret = DeleteObject(hFont);
 152     ok( ret, "DeleteObject error %u\n", GetLastError());
 153
 154     /* Clean up */
 155     ret = ReleaseDC(hwnd, hdc);
 156     ok( ret, "ReleaseDC error %u\n", GetLastError());
 157     ret = DestroyWindow(hwnd);
 158     ok( ret, "DestroyWindow error %u\n", GetLastError());
 159 }
 160
 161 /* replace tabs by \t */
 162 static void strfmt( const char *str, char *strout)
 163 {
 164     unsigned int i,j ;
 165     for(i=0,j=0;i<=strlen(str);i++,j++)
 166         if((strout[j]=str[i])=='\t') {
 167             strout[j++]='\\';
 168             strout[j]='t';
 169         }
 170 }
 171
 172
 173 #define TABTEST( tabval, tabcount, string, _exp) \
 174 { int i,x_act, x_exp; char strdisp[64];\
 175     for(i=0;i<8;i++) tabs[i]=(i+1)*(tabval); \
 176     extent = GetTabbedTextExtentA( hdc, string, strlen( string), (tabcount), tabs); \
 177     strfmt( string, strdisp); \
 178  /*   trace( "Extent is %08lx\n", extent); */\
 179     x_act = LOWORD( extent); \
 180     x_exp = (_exp); \
 181     ok( x_act == x_exp, "Test case \"%s\". Text extent is %d, expected %d tab %d tabcount %d\n", \
 182         strdisp, x_act, x_exp, tabval, tabcount); \
 183 } \
 184
 185
 186 static void test_TabbedText(void)
 187 {
 188     HWND hwnd;
 189     HDC hdc;
 190     BOOL ret;
 191     TEXTMETRICA tm;
 192     DWORD extent;
 193     INT tabs[8], cx, cy, tab, tabcount,t,align;
 194
 195     /* Initialization */
 196     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP,
 197                            0, 0, 200, 200, 0, 0, 0, NULL);
 198     ok(hwnd != 0, "CreateWindowExA error %u\n", GetLastError());
 199     hdc = GetDC(hwnd);
 200     ok(hdc != 0, "GetDC error %u\n", GetLastError());
 201
 202     ret = GetTextMetricsA( hdc, &tm);
 203     ok( ret, "GetTextMetrics error %u\n", GetLastError());
 204
 205     extent = GetTabbedTextExtentA( hdc, "x", 1, 1, tabs);
 206     cx = LOWORD( extent);
 207     cy = HIWORD( extent);
 208     trace( "cx is %d cy is %d\n", cx, cy);
 209
 210     align=1;
 211     for( t=-1; t<=1; t++) { /* slightly adjust the 4 char tabstop, to
 212                                catch the one off errors */
 213         tab =  (cx *4 + t);
 214         /* test the special case tabcount =1 and the general array (80 of tabs */
 215         for( tabcount = 1; tabcount <= 8; tabcount +=7) {
 216             TABTEST( align * tab, tabcount, "\t", tab)
 217             TABTEST( align * tab, tabcount, "xxx\t", tab)
 218             TABTEST( align * tab, tabcount, "\tx", tab+cx)
 219             TABTEST( align * tab, tabcount, "\t\t", tab*2)
 220             TABTEST( align * tab, tabcount, "\tx\t", tab*2)
 221             TABTEST( align * tab, tabcount, "x\tx", tab+cx)
 222             TABTEST( align * tab, tabcount, "xx\tx", tab+cx)
 223             TABTEST( align * tab, tabcount, "xxx\tx", tab+cx)
 224             TABTEST( align * tab, tabcount, "xxxx\tx", t>0 ? tab + cx : 2*tab+cx)
 225             TABTEST( align * tab, tabcount, "xxxxx\tx", 2*tab+cx)
 226         }
 227     }
 228     align=-1;
 229     for( t=-1; t<=1; t++) { /* slightly adjust the 4 char tabstop, to
 230                                catch the one off errors */
 231         tab =  (cx *4 + t);
 232         /* test the special case tabcount =1 and the general array (8) of tabs */
 233         for( tabcount = 1; tabcount <= 8; tabcount +=7) {
 234             TABTEST( align * tab, tabcount, "\t", tab)
 235             TABTEST( align * tab, tabcount, "xxx\t", tab)
 236             TABTEST( align * tab, tabcount, "\tx", tab)
 237             TABTEST( align * tab, tabcount, "\t\t", tab*2)
 238             TABTEST( align * tab, tabcount, "\tx\t", tab*2)
 239             TABTEST( align * tab, tabcount, "x\tx", tab)
 240             TABTEST( align * tab, tabcount, "xx\tx", tab)
 241             TABTEST( align * tab, tabcount, "xxx\tx", 4 * cx >= tab ? 2*tab :tab)
 242             TABTEST( align * tab, tabcount, "xxxx\tx", 2*tab)
 243             TABTEST( align * tab, tabcount, "xxxxx\tx", 2*tab)
 244         }
 245     }
 246
 247     ReleaseDC( hwnd, hdc );
 248     DestroyWindow( hwnd );
 249 }
 250
 251 static void test_DrawState(void)
 252 {
 253     static const char text[] = "Sample text string";
 254     HWND hwnd;
 255     HDC hdc;
 256     BOOL ret;
 257
 258     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP,
 259                            0, 0, 200, 200, 0, 0, 0, NULL);
 260     assert(hwnd);
 261
 262     hdc = GetDC(hwnd);
 263     assert(hdc);
 264
 265     SetLastError(0xdeadbeef);
 266     ret = DrawState(hdc, GetStockObject(DKGRAY_BRUSH), NULL, (LPARAM)text, strlen(text),
 267                     0, 0, 10, 10, DST_TEXT);
 268     ok(ret, "DrawState error %u\n", GetLastError());
 269
 270     SetLastError(0xdeadbeef);
 271     ret = DrawState(hdc, GetStockObject(DKGRAY_BRUSH), NULL, (LPARAM)text, 0,
 272                     0, 0, 10, 10, DST_TEXT);
 273     ok(ret, "DrawState error %u\n", GetLastError());
 274
 275     SetLastError(0xdeadbeef);
 276     ret = DrawState(hdc, GetStockObject(DKGRAY_BRUSH), NULL, 0, strlen(text),
 277                     0, 0, 10, 10, DST_TEXT);
 278     ok(!ret, "DrawState succeeded\n");
 279     ok(GetLastError() == 0xdeadbeef, "not expected error %u\n", GetLastError());
 280
 281     SetLastError(0xdeadbeef);
 282     ret = DrawState(hdc, GetStockObject(DKGRAY_BRUSH), NULL, 0, 0,
 283                     0, 0, 10, 10, DST_TEXT);
 284     ok(!ret, "DrawState succeeded\n");
 285     ok(GetLastError() == 0xdeadbeef, "not expected error %u\n", GetLastError());
 286
 287     ReleaseDC(hwnd, hdc);
 288     DestroyWindow(hwnd);
 289 }
 290
 291 START_TEST(text)
 292 {
 293     test_TabbedText();
 294     test_DrawTextCalcRect();
 295     test_DrawState();
 296 }