src/msw/settings.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/settings.cpp
   3 // Purpose:     wxSystemSettingsNative implementation for MSW
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/utils.h"
  29     #include "wx/gdicmn.h"
  30 #endif
  31
  32 #include "wx/settings.h"
  33
  34 #include "wx/msw/private.h"
  35
  36 #ifndef SPI_GETFLATMENU
  37 #define SPI_GETFLATMENU                     0x1022
  38 #endif
  39
  40 #include "wx/module.h"
  41 #include "wx/fontutil.h"
  42
  43 #ifdef __WXWINCE__ // for SM_CXCURSOR and SM_CYCURSOR
  44 #include "wx/msw/wince/missing.h"
  45 #endif // __WXWINCE__
  46
  47 // ----------------------------------------------------------------------------
  48 // private classes
  49 // ----------------------------------------------------------------------------
  50
  51 // the module which is used to clean up wxSystemSettingsNative data (this is a
  52 // singleton class so it can't be done in the dtor)
  53 class wxSystemSettingsModule : public wxModule
  54 {
  55 public:
  56     virtual bool OnInit();
  57     virtual void OnExit();
  58
  59 private:
  60     DECLARE_DYNAMIC_CLASS(wxSystemSettingsModule)
  61 };
  62
  63 // ----------------------------------------------------------------------------
  64 // global data
  65 // ----------------------------------------------------------------------------
  66
  67 // the font returned by GetFont(wxSYS_DEFAULT_GUI_FONT): it is created when
  68 // GetFont() is called for the first time and deleted by wxSystemSettingsModule
  69 static wxFont *gs_fontDefault = NULL;
  70
  71 // ============================================================================
  72 // implementation
  73 // ============================================================================
  74
  75 // TODO: see ::SystemParametersInfo for all sorts of Windows settings.
  76 // Different args are required depending on the id. How does this differ
  77 // from GetSystemMetric, and should it? Perhaps call it GetSystemParameter
  78 // and pass an optional void* arg to get further info.
  79 // Should also have SetSystemParameter.
  80 // Also implement WM_WININICHANGE (NT) / WM_SETTINGCHANGE (Win95)
  81
  82 // ----------------------------------------------------------------------------
  83 // wxSystemSettingsModule
  84 // ----------------------------------------------------------------------------
  85
  86 IMPLEMENT_DYNAMIC_CLASS(wxSystemSettingsModule, wxModule)
  87
  88 bool wxSystemSettingsModule::OnInit()
  89 {
  90     return TRUE;
  91 }
  92
  93 void wxSystemSettingsModule::OnExit()
  94 {
  95     delete gs_fontDefault;
  96     gs_fontDefault = NULL;
  97 }
  98
  99 // ----------------------------------------------------------------------------
 100 // wxSystemSettingsNative
 101 // ----------------------------------------------------------------------------
 102
 103 // ----------------------------------------------------------------------------
 104 // colours
 105 // ----------------------------------------------------------------------------
 106
 107 wxColour wxSystemSettingsNative::GetColour(wxSystemColour index)
 108 {
 109     // we use 0 as the default value just to avoid compiler warnings, as there
 110     // is no invalid colour value we use hasCol as the real indicator of
 111     // whether colSys was initialized or not
 112     COLORREF colSys = 0;
 113     bool hasCol = FALSE;
 114
 115     // the default colours for the entries after BTNHIGHLIGHT
 116     static const COLORREF s_defaultSysColors[] =
 117     {
 118         0x000000,   // 3DDKSHADOW
 119         0xdfdfdf,   // 3DLIGHT
 120         0x000000,   // INFOTEXT
 121         0xe1ffff,   // INFOBK
 122
 123         0,          // filler - no std colour with this index
 124
 125         // TODO: please fill in the standard values of those, I don't have them
 126         0,          // HOTLIGHT
 127         0,          // GRADIENTACTIVECAPTION
 128         0,          // GRADIENTINACTIVECAPTION
 129         0,          // MENU
 130         0,          // MENUBAR (unused)
 131     };
 132
 133     if ( index == wxSYS_COLOUR_LISTBOX )
 134     {
 135         // there is no standard colour with this index, map to another one
 136         index = wxSYS_COLOUR_WINDOW;
 137     }
 138     else if ( index > wxSYS_COLOUR_BTNHIGHLIGHT )
 139     {
 140         // the indices before BTNHIGHLIGHT are understood by GetSysColor() in
 141         // all Windows version, for the other ones we have to check
 142         bool useDefault;
 143
 144         int verMaj, verMin;
 145         wxGetOsVersion(&verMaj, &verMin);
 146         if ( verMaj < 4 )
 147         {
 148             // NT 3.5
 149             useDefault = TRUE;
 150         }
 151         else if ( verMaj == 4 )
 152         {
 153             // Win95/NT 4.0
 154             useDefault = index > wxSYS_COLOUR_INFOBK;
 155         }
 156         else if ( verMaj == 5 && verMin == 0 )
 157         {
 158             // Win98/Win2K
 159             useDefault = index > wxSYS_COLOUR_GRADIENTINACTIVECAPTION;
 160         }
 161         else // >= 5.1
 162         {
 163             // 5.1 is Windows XP
 164             useDefault = FALSE;
 165                         // Determine if we are using flat menus, only then allow wxSYS_COLOUR_MENUBAR
 166                         if ( index == wxSYS_COLOUR_MENUBAR )
 167                         {
 168                                 BOOL isFlat ;
 169                                 if ( SystemParametersInfo( SPI_GETFLATMENU , 0 ,&isFlat, 0 ) )
 170                                 {
 171                                         if ( !isFlat )
 172                                                 index = wxSYS_COLOUR_MENU ;
 173                                 }
 174                         }
 175        }
 176
 177         if ( useDefault )
 178         {
 179             // special handling for MENUBAR colour: we use this in wxToolBar
 180             // and wxStatusBar to have correct bg colour under Windows XP
 181             // (which uses COLOR_MENUBAR for them) but they should still look
 182             // correctly under previous Windows versions as well
 183             if ( index == wxSYS_COLOUR_MENUBAR )
 184             {
 185                 index = wxSYS_COLOUR_3DFACE;
 186             }
 187             else // replace with default colour
 188             {
 189                 unsigned int n = index - wxSYS_COLOUR_BTNHIGHLIGHT;
 190
 191                 wxASSERT_MSG( n < WXSIZEOF(s_defaultSysColors),
 192                               _T("forgot tp update the default colours array") );
 193
 194                 colSys = s_defaultSysColors[n];
 195                 hasCol = TRUE;
 196             }
 197         }
 198     }
 199
 200     if ( !hasCol )
 201     {
 202 #ifdef __WXWINCE__
 203         colSys = ::GetSysColor(index|SYS_COLOR_INDEX_FLAG);
 204 #else
 205         colSys = ::GetSysColor(index);
 206 #endif
 207     }
 208
 209     return wxRGBToColour(colSys);
 210 }
 211
 212 // ----------------------------------------------------------------------------
 213 // fonts
 214 // ----------------------------------------------------------------------------
 215
 216 wxFont wxCreateFontFromStockObject(int index)
 217 {
 218     wxFont font;
 219
 220     HFONT hFont = (HFONT) ::GetStockObject(index);
 221     if ( hFont )
 222     {
 223         LOGFONT lf;
 224         if ( ::GetObject(hFont, sizeof(LOGFONT), &lf) != 0 )
 225         {
 226             wxNativeFontInfo info;
 227             info.lf = lf;
 228             // Under MicroWindows we pass the HFONT as well
 229             // because it's hard to convert HFONT -> LOGFONT -> HFONT
 230             // It's OK to delete stock objects, the delete will be ignored.
 231 #ifdef __WXMICROWIN__
 232             font.Create(info, (WXHFONT) hFont);
 233 #else
 234             font.Create(info);
 235 #endif
 236         }
 237         else
 238         {
 239             wxFAIL_MSG( _T("failed to get LOGFONT") );
 240         }
 241     }
 242     else // GetStockObject() failed
 243     {
 244         wxFAIL_MSG( _T("stock font not found") );
 245     }
 246
 247     return font;
 248 }
 249
 250 wxFont wxSystemSettingsNative::GetFont(wxSystemFont index)
 251 {
 252 #ifndef __WXWINCE__
 253     // this one is special: we don't get it from GetStockObject()
 254     if ( index == wxSYS_ICONTITLE_FONT )
 255     {
 256         LOGFONT lf;
 257         SystemParametersInfo(SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0);
 258         return wxCreateFontFromLogFont(&lf);
 259     }
 260 #endif // __WXWINCE__
 261
 262     // wxWindow ctor calls GetSystemFont(wxSYS_DEFAULT_GUI_FONT) so we're
 263     // called fairly often - this is why we cache this particular font
 264     bool isDefaultRequested = index == wxSYS_DEFAULT_GUI_FONT;
 265     if ( isDefaultRequested && gs_fontDefault )
 266     {
 267         return *gs_fontDefault;
 268     }
 269
 270     wxFont font = wxCreateFontFromStockObject(index);
 271
 272     if ( isDefaultRequested )
 273     {
 274         // if we got here it means we hadn't cached it yet - do now
 275         gs_fontDefault = new wxFont(font);
 276     }
 277
 278     return font;
 279 }
 280
 281 // ----------------------------------------------------------------------------
 282 // system metrics/features
 283 // ----------------------------------------------------------------------------
 284
 285 // TODO: some of the "metrics" clearly should be features now that we have
 286 //       HasFeature()!
 287
 288 // the conversion table from wxSystemMetric enum to GetSystemMetrics() param
 289 //
 290 // if the constant is not defined, put -1 in the table to indicate that it is
 291 // unknown
 292 static const int gs_metricsMap[] =
 293 {
 294     -1,  // wxSystemMetric enums start at 1, so give a dummy value for pos 0.
 295 #if defined(__WIN32__) && !defined(__WXWINCE__)
 296     SM_CMOUSEBUTTONS,
 297 #else
 298     -1,
 299 #endif
 300
 301     SM_CXBORDER,
 302     SM_CYBORDER,
 303     SM_CXCURSOR,
 304     SM_CYCURSOR,
 305     SM_CXDOUBLECLK,
 306     SM_CYDOUBLECLK,
 307 #if defined(__WIN32__) && defined(SM_CXDRAG)
 308     SM_CXDRAG,
 309     SM_CYDRAG,
 310     SM_CXEDGE,
 311     SM_CYEDGE,
 312 #else
 313     -1, -1, -1, -1,
 314 #endif
 315     SM_CXHSCROLL,
 316     SM_CYHSCROLL,
 317 #ifdef SM_CXHTHUMB
 318     SM_CXHTHUMB,
 319 #else
 320     -1,
 321 #endif
 322     SM_CXICON,
 323     SM_CYICON,
 324     SM_CXICONSPACING,
 325     SM_CYICONSPACING,
 326 #ifdef SM_CXHTHUMB
 327     SM_CXMIN,
 328     SM_CYMIN,
 329 #else
 330     -1, -1,
 331 #endif
 332     SM_CXSCREEN,
 333     SM_CYSCREEN,
 334
 335 #if defined(__WIN32__) && defined(SM_CXSIZEFRAME)
 336     SM_CXSIZEFRAME,
 337     SM_CYSIZEFRAME,
 338     SM_CXSMICON,
 339     SM_CYSMICON,
 340 #else
 341     -1, -1, -1, -1,
 342 #endif
 343     SM_CYHSCROLL,
 344     SM_CXVSCROLL,
 345     SM_CXVSCROLL,
 346     SM_CYVSCROLL,
 347 #ifdef SM_CYVTHUMB
 348     SM_CYVTHUMB,
 349 #else
 350     -1,
 351 #endif
 352     SM_CYCAPTION,
 353     SM_CYMENU,
 354 #if defined(__WIN32__) && defined(SM_NETWORK)
 355     SM_NETWORK,
 356 #else
 357     -1,
 358 #endif
 359 #ifdef SM_PENWINDOWS
 360     SM_PENWINDOWS,
 361 #else
 362     -1,
 363 #endif
 364 #if defined(__WIN32__) && defined(SM_SHOWSOUNDS)
 365     SM_SHOWSOUNDS,
 366 #else
 367     -1,
 368 #endif
 369 #ifdef SM_SWAPBUTTON
 370     SM_SWAPBUTTON,
 371 #else
 372     -1
 373 #endif
 374 };
 375
 376 // Get a system metric, e.g. scrollbar size
 377 int wxSystemSettingsNative::GetMetric(wxSystemMetric index)
 378 {
 379 #ifdef __WXMICROWIN__
 380     // TODO: probably use wxUniv themes functionality
 381     return 0;
 382 #else // !__WXMICROWIN__
 383     wxCHECK_MSG( index > 0 && (size_t)index < WXSIZEOF(gs_metricsMap), 0,
 384                  _T("invalid metric") );
 385
 386     int indexMSW = gs_metricsMap[index];
 387     if ( indexMSW == -1 )
 388     {
 389         // not supported under current system
 390         return 0;
 391     }
 392
 393     int rc = ::GetSystemMetrics(indexMSW);
 394     if ( index == wxSYS_NETWORK_PRESENT )
 395     {
 396         // only the last bit is significant according to the MSDN
 397         rc &= 1;
 398     }
 399
 400     return rc;
 401 #endif // __WXMICROWIN__/!__WXMICROWIN__
 402 }
 403
 404 bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
 405 {
 406     switch ( index )
 407     {
 408         case wxSYS_CAN_ICONIZE_FRAME:
 409         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 410             return TRUE;
 411
 412         default:
 413             wxFAIL_MSG( _T("unknown system feature") );
 414
 415             return FALSE;
 416     }
 417 }