windows/syscolor.c

   1 /*
   2  * Support for system colors
   3  *
   4  * Copyright  David W. Metcalfe, 1993
   5  * Copyright  Alexandre Julliard, 1994
   6  *
   7  */
   8
   9 #include <assert.h>
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12
  13 #include "windef.h"
  14 #include "wingdi.h"
  15 #include "wine/winbase16.h"
  16 #include "wine/winuser16.h"
  17 #include "sysmetrics.h"
  18 #include "winbase.h"
  19 #include "winuser.h"
  20 #include "debugtools.h"
  21 #include "winreg.h"
  22 #include "local.h"
  23 #include "user.h"
  24 #include "gdi.h" /* sic */
  25
  26 DEFAULT_DEBUG_CHANNEL(syscolor);
  27
  28 static const char * const DefSysColors[] =
  29 {
  30     "Scrollbar", "224 224 224",      /* COLOR_SCROLLBAR           */
  31     "Background", "192 192 192",     /* COLOR_BACKGROUND          */
  32     "ActiveTitle", "0 64 128",       /* COLOR_ACTIVECAPTION       */
  33     "InactiveTitle", "255 255 255",  /* COLOR_INACTIVECAPTION     */
  34     "Menu", "255 255 255",           /* COLOR_MENU                */
  35     "Window", "255 255 255",         /* COLOR_WINDOW              */
  36     "WindowFrame", "0 0 0",          /* COLOR_WINDOWFRAME         */
  37     "MenuText", "0 0 0",             /* COLOR_MENUTEXT            */
  38     "WindowText", "0 0 0",           /* COLOR_WINDOWTEXT          */
  39     "TitleText", "255 255 255",      /* COLOR_CAPTIONTEXT         */
  40     "ActiveBorder", "128 128 128",   /* COLOR_ACTIVEBORDER        */
  41     "InactiveBorder", "255 255 255", /* COLOR_INACTIVEBORDER      */
  42     "AppWorkspace", "255 255 232",   /* COLOR_APPWORKSPACE        */
  43     "Hilight", "224 224 224",        /* COLOR_HIGHLIGHT           */
  44     "HilightText", "0 0 0",          /* COLOR_HIGHLIGHTTEXT       */
  45     "ButtonFace", "192 192 192",     /* COLOR_BTNFACE             */
  46     "ButtonShadow", "128 128 128",   /* COLOR_BTNSHADOW           */
  47     "GrayText", "192 192 192",       /* COLOR_GRAYTEXT            */
  48     "ButtonText", "0 0 0",           /* COLOR_BTNTEXT             */
  49     "InactiveTitleText", "0 0 0",    /* COLOR_INACTIVECAPTIONTEXT */
  50     "ButtonHilight", "255 255 255",  /* COLOR_BTNHIGHLIGHT        */
  51     "3DDarkShadow", "32 32 32",      /* COLOR_3DDKSHADOW          */
  52     "3DLight", "192 192 192",        /* COLOR_3DLIGHT             */
  53     "InfoText", "0 0 0",             /* COLOR_INFOTEXT            */
  54     "InfoBackground", "255 255 192", /* COLOR_INFOBK              */
  55     "AlternateButtonFace", "184 180 184",  /* COLOR_ALTERNATEBTNFACE */
  56     "HotTrackingColor", "0 0 255",         /* COLOR_HOTLIGHT */
  57     "GradientActiveTitle", "16 132 208",   /* COLOR_GRADIENTACTIVECAPTION */
  58     "GradientInactiveTitle", "181 181 181" /* COLOR_GRADIENTINACTIVECAPTION */
  59 };
  60
  61 static const char * const DefSysColors95[] =
  62 {
  63     "Scrollbar", "192 192 192",      /* COLOR_SCROLLBAR           */
  64     "Background", "0 128 128",       /* COLOR_BACKGROUND          */
  65     "ActiveTitle", "0 0 128",        /* COLOR_ACTIVECAPTION       */
  66     "InactiveTitle", "128 128 128",  /* COLOR_INACTIVECAPTION     */
  67     "Menu", "192 192 192",           /* COLOR_MENU                */
  68     "Window", "255 255 255",         /* COLOR_WINDOW              */
  69     "WindowFrame", "0 0 0",          /* COLOR_WINDOWFRAME         */
  70     "MenuText", "0 0 0",             /* COLOR_MENUTEXT            */
  71     "WindowText", "0 0 0",           /* COLOR_WINDOWTEXT          */
  72     "TitleText", "255 255 255",      /* COLOR_CAPTIONTEXT         */
  73     "ActiveBorder", "192 192 192",   /* COLOR_ACTIVEBORDER        */
  74     "InactiveBorder", "192 192 192", /* COLOR_INACTIVEBORDER      */
  75     "AppWorkspace", "128 128 128",   /* COLOR_APPWORKSPACE        */
  76     "Hilight", "0 0 128",            /* COLOR_HIGHLIGHT           */
  77     "HilightText", "255 255 255",    /* COLOR_HIGHLIGHTTEXT       */
  78     "ButtonFace", "192 192 192",     /* COLOR_BTNFACE             */
  79     "ButtonShadow", "128 128 128",   /* COLOR_BTNSHADOW           */
  80     "GrayText", "128 128 128",       /* COLOR_GRAYTEXT            */
  81     "ButtonText", "0 0 0",           /* COLOR_BTNTEXT             */
  82     "InactiveTitleText", "192 192 192",/* COLOR_INACTIVECAPTIONTEXT */
  83     "ButtonHilight", "255 255 255",  /* COLOR_BTNHIGHLIGHT        */
  84     "3DDarkShadow", "0 0 0",         /* COLOR_3DDKSHADOW          */
  85     "3DLight", "224 224 224",        /* COLOR_3DLIGHT             */
  86     "InfoText", "0 0 0",             /* COLOR_INFOTEXT            */
  87     "InfoBackground", "255 255 225", /* COLOR_INFOBK              */
  88     "AlternateButtonFace", "180 180 180",  /* COLOR_ALTERNATEBTNFACE */
  89     "HotTrackingColor", "0 0 255",         /* COLOR_HOTLIGHT */
  90     "GradientActiveTitle", "16 132 208",   /* COLOR_GRADIENTACTIVECAPTION */
  91     "GradientInactiveTitle", "181 181 181" /* COLOR_GRADIENTINACTIVECAPTION */
  92 };
  93
  94
  95 #define NUM_SYS_COLORS     (COLOR_GRADIENTINACTIVECAPTION+1)
  96
  97 static COLORREF SysColors[NUM_SYS_COLORS];
  98 static HBRUSH SysColorBrushes[NUM_SYS_COLORS];
  99 static HPEN   SysColorPens[NUM_SYS_COLORS];
 100
 101
 102 /*************************************************************************
 103  * SYSCOLOR_MakeObjectSystem
 104  *
 105  * OK, now for a very ugly hack.
 106  * USER somehow has to tell GDI that its system brushes and pens are
 107  * non-deletable.
 108  * We don't want to export a function from GDI doing this for us,
 109  * so we just do that ourselves by "wildly flipping some bits in memory".
 110  * For a description of the GDI object magics and their flags,
 111  * see "Undocumented Windows" (wrong about the OBJECT_NOSYSTEM flag, though).
 112  */
 113 static void SYSCOLOR_MakeObjectSystem( HGDIOBJ handle, BOOL set)
 114 {
 115     static WORD GDI_heap_sel = 0;
 116     LPWORD ptr;
 117
 118     if (!GDI_heap_sel)
 119     {
 120         GDI_heap_sel = LoadLibrary16("gdi");
 121         FreeLibrary16(GDI_heap_sel);
 122     }
 123
 124     ptr = (LPWORD)LOCAL_Lock(GDI_heap_sel, handle);
 125
 126     /* touch the "system" bit of the wMagic field of a GDIOBJHDR */
 127     if (set)
 128         *(ptr+1) &= ~OBJECT_NOSYSTEM;
 129     else
 130         *(ptr+1) |= OBJECT_NOSYSTEM;
 131     LOCAL_Unlock( GDI_heap_sel, handle );
 132 }
 133
 134 /*************************************************************************
 135  *             SYSCOLOR_SetColor
 136  */
 137 static void SYSCOLOR_SetColor( int index, COLORREF color )
 138 {
 139     if (index < 0 || index >= NUM_SYS_COLORS) return;
 140     SysColors[index] = color;
 141     if (SysColorBrushes[index])
 142     {
 143         SYSCOLOR_MakeObjectSystem(SysColorBrushes[index], FALSE);
 144         DeleteObject( SysColorBrushes[index] );
 145     }
 146     SysColorBrushes[index] = CreateSolidBrush( color );
 147     SYSCOLOR_MakeObjectSystem(SysColorBrushes[index], TRUE);
 148
 149     if (SysColorPens[index])
 150     {
 151         SYSCOLOR_MakeObjectSystem(SysColorPens[index], FALSE);
 152         DeleteObject( SysColorPens[index] );
 153     }
 154     SysColorPens[index] = CreatePen( PS_SOLID, 1, color );
 155     SYSCOLOR_MakeObjectSystem(SysColorPens[index], TRUE);
 156 }
 157
 158
 159 /*************************************************************************
 160  *             SYSCOLOR_Init
 161  */
 162 void SYSCOLOR_Init(void)
 163 {
 164     int i, r, g, b;
 165     const char * const *p;
 166     char buffer[100];
 167     BOOL bOk = FALSE, bNoReg = FALSE;
 168     HKEY  hKey;
 169
 170     p = (TWEAK_WineLook == WIN31_LOOK) ? DefSysColors : DefSysColors95;
 171
 172     /* first, try to read the values from the registry */
 173     if (RegCreateKeyExA(HKEY_CURRENT_USER, "Control Panel\\Colors", 0, 0, 0, KEY_ALL_ACCESS, 0, &hKey, 0))
 174       bNoReg = TRUE;
 175     for (i = 0; i < NUM_SYS_COLORS; i++)
 176     { bOk = FALSE;
 177
 178       /* first try, registry */
 179       if (!bNoReg)
 180       {
 181         DWORD dwDataSize = sizeof(buffer);
 182         if (!(RegQueryValueExA(hKey,(LPSTR)p[i*2], 0, 0, buffer, &dwDataSize)))
 183           if (sscanf( buffer, "%d %d %d", &r, &g, &b ) == 3)
 184             bOk = TRUE;
 185       }
 186
 187       /* second try, win.ini */
 188       if (!bOk)
 189       { GetProfileStringA( "colors", p[i*2], p[i*2+1], buffer, 100 );
 190         if (sscanf( buffer, " %d %d %d", &r, &g, &b ) == 3)
 191           bOk = TRUE;
 192       }
 193
 194       /* last chance, take the default */
 195       if (!bOk)
 196       { int iNumColors = sscanf( p[i*2+1], " %d %d %d", &r, &g, &b );
 197         assert (iNumColors==3);
 198       }
 199
 200       SYSCOLOR_SetColor( i, RGB(r,g,b) );
 201     }
 202     if (!bNoReg)
 203       RegCloseKey(hKey);
 204 }
 205
 206
 207 /*************************************************************************
 208  *              GetSysColor (USER.180)
 209  */
 210 COLORREF WINAPI GetSysColor16( INT16 nIndex )
 211 {
 212     return GetSysColor (nIndex);
 213 }
 214
 215
 216 /*************************************************************************
 217  *              GetSysColor (USER32.@)
 218  */
 219 COLORREF WINAPI GetSysColor( INT nIndex )
 220 {
 221     if (nIndex >= 0 && nIndex < NUM_SYS_COLORS)
 222         return SysColors[nIndex];
 223     else
 224         return 0;
 225 }
 226
 227
 228 /*************************************************************************
 229  *              SetSysColors (USER.181)
 230  */
 231 VOID WINAPI SetSysColors16( INT16 nChanges, const INT16 *lpSysColor,
 232                             const COLORREF *lpColorValues )
 233 {
 234     int i;
 235
 236     for (i = 0; i < nChanges; i++)
 237     {
 238         SYSCOLOR_SetColor( lpSysColor[i], lpColorValues[i] );
 239     }
 240
 241     /* Send WM_SYSCOLORCHANGE message to all windows */
 242
 243     SendMessageA( HWND_BROADCAST, WM_SYSCOLORCHANGE, 0, 0 );
 244
 245     /* Repaint affected portions of all visible windows */
 246
 247     RedrawWindow( GetDesktopWindow(), NULL, 0,
 248                 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_ALLCHILDREN );
 249 }
 250
 251
 252 /*************************************************************************
 253  *              SetSysColors (USER32.@)
 254  */
 255 BOOL WINAPI SetSysColors( INT nChanges, const INT *lpSysColor,
 256                               const COLORREF *lpColorValues )
 257 {
 258     int i;
 259
 260     for (i = 0; i < nChanges; i++)
 261     {
 262         SYSCOLOR_SetColor( lpSysColor[i], lpColorValues[i] );
 263     }
 264
 265     /* Send WM_SYSCOLORCHANGE message to all windows */
 266
 267     SendMessageA( HWND_BROADCAST, WM_SYSCOLORCHANGE, 0, 0 );
 268
 269     /* Repaint affected portions of all visible windows */
 270
 271     RedrawWindow( GetDesktopWindow(), NULL, 0,
 272                 RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW | RDW_ALLCHILDREN );
 273     return TRUE;
 274 }
 275
 276 /*************************************************************************
 277  *              SetSysColorsTemp (USER32.@)
 278  *
 279  * UNDOCUMENTED !!
 280  *
 281  * Called by W98SE desk.cpl Control Panel Applet:
 282  * handle = SetSysColorsTemp(ptr, ptr, nCount);     ("set" call)
 283  * result = SetSysColorsTemp(NULL, NULL, handle);   ("restore" call)
 284  *
 285  * pPens is an array of COLORREF values, which seems to be used
 286  * to indicate the color values to create new pens with.
 287  *
 288  * pBrushes is an array of solid brush handles (returned by a previous
 289  * CreateSolidBrush), which seems to contain the brush handles to set
 290  * for the system colors.
 291  *
 292  * n seems to be used for
 293  *   a) indicating the number of entries to operate on (length of pPens,
 294  *      pBrushes)
 295  *   b) passing the handle that points to the previously used color settings.
 296  *      I couldn't figure out in hell what kind of handle this is on
 297  *      Windows. I just use a heap handle instead. Shouldn't matter anyway.
 298  *
 299  * RETURNS
 300  *     heap handle of our own copy of the current syscolors in case of
 301  *                 "set" call, i.e. pPens, pBrushes != NULL.
 302  *     TRUE (unconditionally !) in case of "restore" call,
 303  *          i.e. pPens, pBrushes == NULL.
 304  *     FALSE in case of either pPens != NULL and pBrushes == NULL
 305  *          or pPens == NULL and pBrushes != NULL.
 306  *
 307  * I'm not sure whether this implementation is 100% correct. [AM]
 308  */
 309 DWORD WINAPI SetSysColorsTemp( const COLORREF *pPens, const HBRUSH *pBrushes, DWORD n)
 310 {
 311         int i;
 312
 313         if (pPens && pBrushes) /* "set" call */
 314         {
 315             /* allocate our structure to remember old colors */
 316             LPVOID pOldCol = HeapAlloc(GetProcessHeap(), 0, sizeof(DWORD)+n*sizeof(HPEN)+n*sizeof(HBRUSH));
 317             LPVOID p = pOldCol;
 318             *(DWORD *)p = n; p += sizeof(DWORD);
 319             memcpy(p, SysColorPens, n*sizeof(HPEN)); p += n*sizeof(HPEN);
 320             memcpy(p, SysColorBrushes, n*sizeof(HBRUSH)); p += n*sizeof(HBRUSH);
 321
 322             for (i=0; i < n; i++)
 323             {
 324                 SysColorPens[i] = CreatePen( PS_SOLID, 1, pPens[i] );
 325                 SysColorBrushes[i] = pBrushes[i];
 326             }
 327
 328             return (DWORD)pOldCol;
 329         }
 330         if ((!pPens) && (!pBrushes)) /* "restore" call */
 331         {
 332             LPVOID pOldCol = (LPVOID)n;
 333             LPVOID p = pOldCol;
 334             DWORD nCount = *(DWORD *)p;
 335             p += sizeof(DWORD);
 336
 337             for (i=0; i < nCount; i++)
 338             {
 339                 DeleteObject(SysColorPens[i]);
 340                 SysColorPens[i] = *(HPEN *)p; p += sizeof(HPEN);
 341             }
 342             for (i=0; i < nCount; i++)
 343             {
 344                 SysColorBrushes[i] = *(HBRUSH *)p; p += sizeof(HBRUSH);
 345             }
 346             /* get rid of storage structure */
 347             HeapFree(GetProcessHeap(), 0, pOldCol);
 348
 349             return TRUE;
 350         }
 351         return FALSE;
 352 }
 353
 354 /***********************************************************************
 355  *              GetSysColorBrush (USER.281)
 356  */
 357 HBRUSH16 WINAPI GetSysColorBrush16( INT16 index )
 358 {
 359     return (HBRUSH16)GetSysColorBrush(index);
 360 }
 361
 362
 363 /***********************************************************************
 364  *              GetSysColorBrush (USER32.@)
 365  */
 366 HBRUSH WINAPI GetSysColorBrush( INT index )
 367 {
 368     if (0 <= index && index < NUM_SYS_COLORS)
 369         return SysColorBrushes[index];
 370     WARN("Unknown index(%d)\n", index );
 371     return GetStockObject(LTGRAY_BRUSH);
 372 }
 373
 374
 375 /***********************************************************************
 376  *              GetSysColorPen (USER32.@) (Not a Windows API)
 377  *
 378  * This function is new to the Wine lib -- it does not exist in
 379  * Windows. However, it is a natural complement for GetSysColorBrush
 380  * in the Win32 API and is needed quite a bit inside Wine.
 381  */
 382 HPEN WINAPI GetSysColorPen( INT index )
 383 {
 384     /* We can assert here, because this function is internal to Wine */
 385     assert (0 <= index && index < NUM_SYS_COLORS);
 386     return SysColorPens[index];
 387
 388 }
 389
 390