rostests/winetests/user32/text.c

   1 /*
   2  * DrawText tests
   3  *
   4  * Copyright (c) 2004 Zach Gorman
   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
  19  * 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     const char text[] = "Example text for testing DrawText in "
  38       "MM_HIENGLISH mode";
  39     const WCHAR textW[] = {'W','i','d','e',' ','c','h','a','r',' ',
  40         's','t','r','i','n','g','\0'};
  41     const WCHAR emptystringW[] = { 0 };
  42     INT textlen,textheight;
  43     RECT rect = { 0, 0, 100, 0 };
  44     BOOL ret;
  45
  46     /* Initialization */
  47     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP,
  48                            0, 0, 200, 200, 0, 0, 0, NULL);
  49     ok(hwnd != 0, "CreateWindowExA error %lu\n", GetLastError());
  50     hdc = GetDC(hwnd);
  51     ok(hdc != 0, "GetDC error %lu\n", GetLastError());
  52     trace("hdc %p\n", hdc);
  53     textlen = lstrlenA(text);
  54
  55     /* LOGFONT initialization */
  56     memset(&lf, 0, sizeof(lf));
  57     lf.lfCharSet = ANSI_CHARSET;
  58     lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
  59     lf.lfWeight = FW_DONTCARE;
  60     lf.lfHeight = 0; /* mapping mode dependent */
  61     lf.lfQuality = DEFAULT_QUALITY;
  62     lstrcpyA(lf.lfFaceName, "Arial");
  63
  64     /* DrawText in MM_HIENGLISH with DT_CALCRECT */
  65     SetMapMode(hdc, MM_HIENGLISH);
  66     lf.lfHeight = 100 * 9 / 72; /* 9 point */
  67     hFont = CreateFontIndirectA(&lf);
  68     ok(hFont != 0, "CreateFontIndirectA error %lu\n",
  69        GetLastError());
  70     hOldFont = SelectObject(hdc, hFont);
  71
  72     textheight = DrawTextA(hdc, text, textlen, &rect, DT_CALCRECT |
  73        DT_EXTERNALLEADING | DT_WORDBREAK | DT_NOCLIP | DT_LEFT |
  74        DT_NOPREFIX);
  75     ok( textheight, "DrawTextA error %lu\n", GetLastError());
  76
  77     trace("MM_HIENGLISH rect.bottom %ld\n", rect.bottom);
  78     todo_wine ok(rect.bottom < 0, "In MM_HIENGLISH, DrawText with "
  79        "DT_CALCRECT should return a negative rectangle bottom. "
  80        "(bot=%ld)\n", rect.bottom);
  81
  82     SelectObject(hdc, hOldFont);
  83     ret = DeleteObject(hFont);
  84     ok( ret, "DeleteObject error %lu\n", GetLastError());
  85
  86
  87     /* DrawText in MM_TEXT with DT_CALCRECT */
  88     SetMapMode(hdc, MM_TEXT);
  89     lf.lfHeight = -MulDiv(9, GetDeviceCaps(hdc,
  90        LOGPIXELSY), 72); /* 9 point */
  91     hFont = CreateFontIndirectA(&lf);
  92     ok(hFont != 0, "CreateFontIndirectA error %lu\n",
  93        GetLastError());
  94     hOldFont = SelectObject(hdc, hFont);
  95
  96     textheight = DrawTextA(hdc, text, textlen, &rect, DT_CALCRECT |
  97        DT_EXTERNALLEADING | DT_WORDBREAK | DT_NOCLIP | DT_LEFT |
  98        DT_NOPREFIX);
  99     ok( textheight, "DrawTextA error %lu\n", GetLastError());
 100
 101     trace("MM_TEXT rect.bottom %ld\n", rect.bottom);
 102     ok(rect.bottom > 0, "In MM_TEXT, DrawText with DT_CALCRECT "
 103        "should return a positive rectangle bottom. (bot=%ld)\n",
 104        rect.bottom);
 105
 106     /* empty or null text should in some cases calc an empty rectangle */
 107     /* note: testing the function's return value is useless, it differs
 108      * ( 0 or 1) on every Windows version I tried */
 109     SetRect( &rect, 10,10, 100, 100);
 110     textheight = DrawTextExA(hdc, (char *) text, 0, &rect, DT_CALCRECT, NULL );
 111     ok( !(rect.left == rect.right && rect.bottom == rect.top),
 112             "rectangle should NOT be empty.\n");
 113     SetRect( &rect, 10,10, 100, 100);
 114     SetLastError( 0);
 115     textheight = DrawTextExA(hdc, "", -1, &rect, DT_CALCRECT, NULL );
 116     ok( (rect.left == rect.right && rect.bottom == rect.top),
 117             "rectangle should be empty.\n");
 118     SetRect( &rect, 10,10, 100, 100);
 119     SetLastError( 0);
 120     textheight = DrawTextExA(hdc, NULL, -1, &rect, DT_CALCRECT, NULL );
 121     ok( (rect.left == rect.right && rect.bottom == rect.top),
 122             "rectangle should be empty.\n");
 123     SetRect( &rect, 10,10, 100, 100);
 124     textheight = DrawTextExA(hdc, NULL, 0, &rect, DT_CALCRECT, NULL );
 125     ok( !(rect.left == rect.right && rect.bottom == rect.top),
 126             "rectangle should NOT be empty.\n");
 127
 128     /* Wide char versions */
 129     SetRect( &rect, 10,10, 100, 100);
 130     SetLastError( 0);
 131     textheight = DrawTextExW(hdc, (WCHAR *) textW, 0, &rect, DT_CALCRECT, NULL );
 132     if( GetLastError() != ERROR_CALL_NOT_IMPLEMENTED) {
 133         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 134                 "rectangle should NOT be empty.\n");
 135         SetRect( &rect, 10,10, 100, 100);
 136         textheight = DrawTextExW(hdc, (WCHAR *) emptystringW, -1, &rect, DT_CALCRECT, NULL );
 137         ok( (rect.left == rect.right && rect.bottom == rect.top),
 138                 "rectangle should be empty.\n");
 139         SetRect( &rect, 10,10, 100, 100);
 140         textheight = DrawTextExW(hdc, NULL, -1, &rect, DT_CALCRECT, NULL );
 141         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 142                 "rectangle should NOT be empty.\n");
 143         SetRect( &rect, 10,10, 100, 100);
 144         textheight = DrawTextExW(hdc, NULL, 0, &rect, DT_CALCRECT, NULL );
 145         ok( !(rect.left == rect.right && rect.bottom == rect.top),
 146                 "rectangle should NOT be empty.\n");
 147     }
 148
 149     SelectObject(hdc, hOldFont);
 150     ret = DeleteObject(hFont);
 151     ok( ret, "DeleteObject error %lu\n", GetLastError());
 152
 153     /* Clean up */
 154     ret = ReleaseDC(hwnd, hdc);
 155     ok( ret, "ReleaseDC error %lu\n", GetLastError());
 156     ret = DestroyWindow(hwnd);
 157     ok( ret, "DestroyWindow error %lu\n", GetLastError());
 158 }
 159
 160 /* replace tabs by \t */
 161 static void strfmt( char *str, char *strout)
 162 {
 163     unsigned int i,j ;
 164     for(i=0,j=0;i<=strlen(str);i++,j++)
 165         if((strout[j]=str[i])=='\t') {
 166             strout[j++]='\\';
 167             strout[j]='t';
 168         }
 169 }
 170
 171
 172 #define TABTEST( tabval, tabcount, string, _exp) \
 173 { int i,x_act, x_exp; char strdisp[64];\
 174     for(i=0;i<8;i++) tabs[i]=(i+1)*(tabval); \
 175     extent = GetTabbedTextExtentA( hdc, string, strlen( string), (tabcount), tabs); \
 176     strfmt( string, strdisp); \
 177  /*   trace( "Extent is %08lx\n", extent); */\
 178     x_act = LOWORD( extent); \
 179     x_exp = (_exp); \
 180     ok( x_act == x_exp, "Test case \"%s\". Text extent is %d, expected %d tab %d tabcount %d\n", \
 181         strdisp, x_act, x_exp, tabval, tabcount); \
 182 } \
 183
 184
 185 static void test_TabbedText(void)
 186 {
 187     HWND hwnd;
 188     HDC hdc;
 189     BOOL ret;
 190     TEXTMETRICA tm;
 191     DWORD extent;
 192     INT tabs[8], cx, cy, tab, tabcount,t,align;
 193
 194     /* Initialization */
 195     hwnd = CreateWindowExA(0, "static", NULL, WS_POPUP,
 196                            0, 0, 200, 200, 0, 0, 0, NULL);
 197     ok(hwnd != 0, "CreateWindowExA error %lu\n", GetLastError());
 198     hdc = GetDC(hwnd);
 199     ok(hdc != 0, "GetDC error %lu\n", GetLastError());
 200
 201     ret = GetTextMetricsA( hdc, &tm);
 202     ok( ret, "GetTextMetrics error %lu\n", GetLastError());
 203
 204     extent = GetTabbedTextExtentA( hdc, "x", 1, 1, tabs);
 205     cx = LOWORD( extent);
 206     cy = HIWORD( extent);
 207     trace( "cx is %d cy is %d\n", cx, cy);
 208
 209     align=1;
 210     for( t=-1; t<=1; t++) { /* slightly adjust the 4 char tabstop, to
 211                                catch the one off errors */
 212         tab =  (cx *4 + t);
 213         /* test the special case tabcount =1 and the general array (80 of tabs */
 214         for( tabcount = 1; tabcount <= 8; tabcount +=7) {
 215             TABTEST( align * tab, tabcount, "\t", tab)
 216             TABTEST( align * tab, tabcount, "xxx\t", tab)
 217             TABTEST( align * tab, tabcount, "\tx", tab+cx)
 218             TABTEST( align * tab, tabcount, "\t\t", tab*2)
 219             TABTEST( align * tab, tabcount, "\tx\t", tab*2)
 220             TABTEST( align * tab, tabcount, "x\tx", tab+cx)
 221             TABTEST( align * tab, tabcount, "xx\tx", tab+cx)
 222             TABTEST( align * tab, tabcount, "xxx\tx", tab+cx)
 223             TABTEST( align * tab, tabcount, "xxxx\tx", t>0 ? tab + cx : 2*tab+cx)
 224             TABTEST( align * tab, tabcount, "xxxxx\tx", 2*tab+cx)
 225         }
 226     }
 227     align=-1;
 228     for( t=-1; t<=1; t++) { /* slightly adjust the 4 char tabstop, to
 229                                catch the one off errors */
 230         tab =  (cx *4 + t);
 231         /* test the special case tabcount =1 and the general array (8) of tabs */
 232         for( tabcount = 1; tabcount <= 8; tabcount +=7) {
 233             TABTEST( align * tab, tabcount, "\t", tab)
 234             TABTEST( align * tab, tabcount, "xxx\t", tab)
 235             TABTEST( align * tab, tabcount, "\tx", tab)
 236             TABTEST( align * tab, tabcount, "\t\t", tab*2)
 237             TABTEST( align * tab, tabcount, "\tx\t", tab*2)
 238             TABTEST( align * tab, tabcount, "x\tx", tab)
 239             TABTEST( align * tab, tabcount, "xx\tx", tab)
 240             TABTEST( align * tab, tabcount, "xxx\tx", 4 * cx >= tab ? 2*tab :tab)
 241             TABTEST( align * tab, tabcount, "xxxx\tx", 2*tab)
 242             TABTEST( align * tab, tabcount, "xxxxx\tx", 2*tab)
 243         }
 244     }
 245
 246
 247 }
 248
 249 START_TEST(text)
 250 {
 251     test_TabbedText();
 252     test_DrawTextCalcRect();
 253 }