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 // ----------------------------------------------------------------------------
  44 // private classes
  45 // ----------------------------------------------------------------------------
  46
  47 // the module which is used to clean up wxSystemSettingsNative data (this is a
  48 // singleton class so it can't be done in the dtor)
  49 class wxSystemSettingsModule : public wxModule
  50 {
  51 public:
  52     virtual bool OnInit();
  53     virtual void OnExit();
  54
  55 private:
  56     DECLARE_DYNAMIC_CLASS(wxSystemSettingsModule)
  57 };
  58
  59 // ----------------------------------------------------------------------------
  60 // global data
  61 // ----------------------------------------------------------------------------
  62
  63 // the font returned by GetFont(wxSYS_DEFAULT_GUI_FONT): it is created when
  64 // GetFont() is called for the first time and deleted by wxSystemSettingsModule
  65 static wxFont *gs_fontDefault = NULL;
  66
  67 // ============================================================================
  68 // implementation
  69 // ============================================================================
  70
  71 // TODO: see ::SystemParametersInfo for all sorts of Windows settings.
  72 // Different args are required depending on the id. How does this differ
  73 // from GetSystemMetric, and should it? Perhaps call it GetSystemParameter
  74 // and pass an optional void* arg to get further info.
  75 // Should also have SetSystemParameter.
  76 // Also implement WM_WININICHANGE (NT) / WM_SETTINGCHANGE (Win95)
  77
  78 // ----------------------------------------------------------------------------
  79 // wxSystemSettingsModule
  80 // ----------------------------------------------------------------------------
  81
  82 IMPLEMENT_DYNAMIC_CLASS(wxSystemSettingsModule, wxModule)
  83
  84 bool wxSystemSettingsModule::OnInit()
  85 {
  86     return TRUE;
  87 }
  88
  89 void wxSystemSettingsModule::OnExit()
  90 {
  91     delete gs_fontDefault;
  92     gs_fontDefault = NULL;
  93 }
  94
  95 // ----------------------------------------------------------------------------
  96 // wxSystemSettingsNative
  97 // ----------------------------------------------------------------------------
  98
  99 // ----------------------------------------------------------------------------
 100 // colours
 101 // ----------------------------------------------------------------------------
 102
 103 wxColour wxSystemSettingsNative::GetColour(wxSystemColour index)
 104 {
 105     // we use 0 as the default value just to avoid compiler warnings, as there
 106     // is no invalid colour value we use hasCol as the real indicator of
 107     // whether colSys was initialized or not
 108     COLORREF colSys = 0;
 109     bool hasCol = FALSE;
 110
 111     // the default colours for the entries after BTNHIGHLIGHT
 112     static const COLORREF s_defaultSysColors[] =
 113     {
 114         0x000000,   // 3DDKSHADOW
 115         0xdfdfdf,   // 3DLIGHT
 116         0x000000,   // INFOTEXT
 117         0xe1ffff,   // INFOBK
 118
 119         0,          // filler - no std colour with this index
 120
 121         // TODO: please fill in the standard values of those, I don't have them
 122         0,          // HOTLIGHT
 123         0,          // GRADIENTACTIVECAPTION
 124         0,          // GRADIENTINACTIVECAPTION
 125         0,          // MENU
 126         0,          // MENUBAR (unused)
 127     };
 128
 129     if ( index == wxSYS_COLOUR_LISTBOX )
 130     {
 131         // there is no standard colour with this index, map to another one
 132         index = wxSYS_COLOUR_WINDOW;
 133     }
 134     else if ( index > wxSYS_COLOUR_BTNHIGHLIGHT )
 135     {
 136         // the indices before BTNHIGHLIGHT are understood by GetSysColor() in
 137         // all Windows version, for the other ones we have to check
 138         bool useDefault;
 139
 140         // none of the is supported under Win16 anyhow
 141 #ifdef __WIN32__
 142         int verMaj, verMin;
 143         wxGetOsVersion(&verMaj, &verMin);
 144         if ( verMaj < 4 )
 145         {
 146             // NT 3.5
 147             useDefault = TRUE;
 148         }
 149         else if ( verMaj == 4 )
 150         {
 151             // Win95/NT 4.0
 152             useDefault = index > wxSYS_COLOUR_INFOBK;
 153         }
 154         else if ( verMaj == 5 && verMin == 0 )
 155         {
 156             // Win98/Win2K
 157             useDefault = index > wxSYS_COLOUR_GRADIENTINACTIVECAPTION;
 158         }
 159         else // >= 5.1
 160         {
 161             // 5.1 is Windows XP
 162             useDefault = FALSE;
 163                         // Determine if we are using flat menus, only then allow wxSYS_COLOUR_MENUBAR
 164                         if ( index == wxSYS_COLOUR_MENUBAR )
 165                         {
 166                                 BOOL isFlat ;
 167                                 if ( SystemParametersInfo( SPI_GETFLATMENU , 0 ,&isFlat, 0 ) )
 168                                 {
 169                                         if ( !isFlat )
 170                                                 index = wxSYS_COLOUR_MENU ;
 171                                 }
 172                         }
 173        }
 174 #else
 175         useDefault = TRUE;
 176 #endif // __WIN32__
 177
 178         if ( useDefault )
 179         {
 180             // special handling for MENUBAR colour: we use this in wxToolBar
 181             // and wxStatusBar to have correct bg colour under Windows XP
 182             // (which uses COLOR_MENUBAR for them) but they should still look
 183             // correctly under previous Windows versions as well
 184             if ( index == wxSYS_COLOUR_MENUBAR )
 185             {
 186                 index = wxSYS_COLOUR_3DFACE;
 187             }
 188             else // replace with default colour
 189             {
 190                 unsigned int n = index - wxSYS_COLOUR_BTNHIGHLIGHT;
 191
 192                 wxASSERT_MSG( n < WXSIZEOF(s_defaultSysColors),
 193                               _T("forgot tp update the default colours array") );
 194
 195                 colSys = s_defaultSysColors[n];
 196                 hasCol = TRUE;
 197             }
 198         }
 199     }
 200
 201     if ( !hasCol )
 202     {
 203 #ifdef __WXWINCE__
 204         colSys = ::GetSysColor(index|SYS_COLOR_INDEX_FLAG);
 205 #else
 206         colSys = ::GetSysColor(index);
 207 #endif
 208     }
 209
 210     return wxRGBToColour(colSys);
 211 }
 212
 213 // ----------------------------------------------------------------------------
 214 // fonts
 215 // ----------------------------------------------------------------------------
 216
 217 wxFont wxCreateFontFromStockObject(int index)
 218 {
 219     wxFont font;
 220
 221     HFONT hFont = (HFONT) ::GetStockObject(index);
 222     if ( hFont )
 223     {
 224         LOGFONT lf;
 225         if ( ::GetObject(hFont, sizeof(LOGFONT), &lf) != 0 )
 226         {
 227             wxNativeFontInfo info;
 228             info.lf = lf;
 229             // Under MicroWindows we pass the HFONT as well
 230             // because it's hard to convert HFONT -> LOGFONT -> HFONT
 231             // It's OK to delete stock objects, the delete will be ignored.
 232 #ifdef __WXMICROWIN__
 233             font.Create(info, (WXHFONT) hFont);
 234 #else
 235             font.Create(info);
 236 #endif
 237         }
 238         else
 239         {
 240             wxFAIL_MSG( _T("failed to get LOGFONT") );
 241         }
 242     }
 243     else // GetStockObject() failed
 244     {
 245         wxFAIL_MSG( _T("stock font not found") );
 246     }
 247
 248     return font;
 249 }
 250
 251 wxFont wxSystemSettingsNative::GetFont(wxSystemFont index)
 252 {
 253     // wxWindow ctor calls GetSystemFont(wxSYS_DEFAULT_GUI_FONT) so we're
 254     // called fairly often - this is why we cache this particular font
 255     bool isDefaultRequested = index == wxSYS_DEFAULT_GUI_FONT;
 256     if ( isDefaultRequested && gs_fontDefault )
 257     {
 258         return *gs_fontDefault;
 259     }
 260
 261     wxFont font = wxCreateFontFromStockObject(index);
 262
 263     if ( isDefaultRequested )
 264     {
 265         // if we got here it means we hadn't cached it yet - do now
 266         gs_fontDefault = new wxFont(font);
 267     }
 268
 269     return font;
 270 }
 271
 272 // ----------------------------------------------------------------------------
 273 // system metrics/features
 274 // ----------------------------------------------------------------------------
 275
 276 // TODO: some of the "metrics" clearly should be features now that we have
 277 //       HasFeature()!
 278
 279 // the conversion table from wxSystemMetric enum to GetSystemMetrics() param
 280 //
 281 // if the constant is not defined, put -1 in the table to indicate that it is
 282 // unknown
 283 static const int gs_metricsMap[] =
 284 {
 285     -1,  // wxSystemMetric enums start at 1, so give a dummy value for pos 0.
 286 #if defined(__WIN32__) && !defined(__WXWINCE__)
 287     SM_CMOUSEBUTTONS,
 288 #else
 289     -1,
 290 #endif
 291
 292     SM_CXBORDER,
 293     SM_CYBORDER,
 294     SM_CXCURSOR,
 295     SM_CYCURSOR,
 296     SM_CXDOUBLECLK,
 297     SM_CYDOUBLECLK,
 298 #if defined(__WIN32__) && defined(SM_CXDRAG)
 299     SM_CXDRAG,
 300     SM_CYDRAG,
 301     SM_CXEDGE,
 302     SM_CYEDGE,
 303 #else
 304     -1, -1, -1, -1,
 305 #endif
 306     SM_CXHSCROLL,
 307     SM_CYHSCROLL,
 308 #ifdef SM_CXHTHUMB
 309     SM_CXHTHUMB,
 310 #else
 311     -1,
 312 #endif
 313     SM_CXICON,
 314     SM_CYICON,
 315     SM_CXICONSPACING,
 316     SM_CYICONSPACING,
 317 #ifdef SM_CXHTHUMB
 318     SM_CXMIN,
 319     SM_CYMIN,
 320 #else
 321     -1, -1,
 322 #endif
 323     SM_CXSCREEN,
 324     SM_CYSCREEN,
 325
 326 #if defined(__WIN32__) && defined(SM_CXSIZEFRAME)
 327     SM_CXSIZEFRAME,
 328     SM_CYSIZEFRAME,
 329     SM_CXSMICON,
 330     SM_CYSMICON,
 331 #else
 332     -1, -1, -1, -1,
 333 #endif
 334     SM_CYHSCROLL,
 335     SM_CXVSCROLL,
 336     SM_CXVSCROLL,
 337     SM_CYVSCROLL,
 338 #ifdef SM_CYVTHUMB
 339     SM_CYVTHUMB,
 340 #else
 341     -1,
 342 #endif
 343     SM_CYCAPTION,
 344     SM_CYMENU,
 345 #if defined(__WIN32__) && defined(SM_NETWORK)
 346     SM_NETWORK,
 347 #else
 348     -1,
 349 #endif
 350 #ifdef SM_PENWINDOWS
 351     SM_PENWINDOWS,
 352 #else
 353     -1,
 354 #endif
 355 #if defined(__WIN32__) && defined(SM_SHOWSOUNDS)
 356     SM_SHOWSOUNDS,
 357 #else
 358     -1,
 359 #endif
 360 #ifdef SM_SWAPBUTTON
 361     SM_SWAPBUTTON,
 362 #else
 363     -1
 364 #endif
 365 };
 366
 367 // Get a system metric, e.g. scrollbar size
 368 int wxSystemSettingsNative::GetMetric(wxSystemMetric index)
 369 {
 370 #ifdef __WXMICROWIN__
 371     // TODO: probably use wxUniv themes functionality
 372     return 0;
 373 #else // !__WXMICROWIN__
 374     wxCHECK_MSG( index > 0 && (size_t)index < WXSIZEOF(gs_metricsMap), 0,
 375                  _T("invalid metric") );
 376
 377     int indexMSW = gs_metricsMap[index];
 378     if ( indexMSW == -1 )
 379     {
 380         // not supported under current system
 381         return 0;
 382     }
 383
 384     int rc = ::GetSystemMetrics(indexMSW);
 385     if ( index == wxSYS_NETWORK_PRESENT )
 386     {
 387         // only the last bit is significant according to the MSDN
 388         rc &= 1;
 389     }
 390
 391     return rc;
 392 #endif // __WXMICROWIN__/!__WXMICROWIN__
 393 }
 394
 395 bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
 396 {
 397     switch ( index )
 398     {
 399         case wxSYS_CAN_ICONIZE_FRAME:
 400         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 401             return TRUE;
 402
 403         default:
 404             wxFAIL_MSG( _T("unknown system feature") );
 405
 406             return FALSE;
 407     }
 408 }