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 #ifdef __WXWINCE__
 253     // under CE only a single SYSTEM_FONT exists
 254     index;
 255
 256     if ( !gs_fontDefault )
 257     {
 258         gs_fontDefault = new wxFont(wxCreateFontFromStockObject(SYSTEM_FONT));
 259     }
 260
 261     return *gs_fontDefault;
 262 #else // !__WXWINCE__
 263     // wxWindow ctor calls GetSystemFont(wxSYS_DEFAULT_GUI_FONT) so we're
 264     // called fairly often -- this is why we cache this particular font
 265     const bool isDefaultRequested = index == wxSYS_DEFAULT_GUI_FONT;
 266     if ( isDefaultRequested )
 267     {
 268         if ( gs_fontDefault )
 269             return *gs_fontDefault;
 270     }
 271
 272     wxFont font = wxCreateFontFromStockObject(index);
 273
 274     if ( isDefaultRequested )
 275     {
 276         // if we got here it means we hadn't cached it yet - do now
 277         gs_fontDefault = new wxFont(font);
 278     }
 279
 280     return font;
 281 #endif // __WXWINCE__/!__WXWINCE__
 282 }
 283
 284 // ----------------------------------------------------------------------------
 285 // system metrics/features
 286 // ----------------------------------------------------------------------------
 287
 288 // TODO: some of the "metrics" clearly should be features now that we have
 289 //       HasFeature()!
 290
 291 // the conversion table from wxSystemMetric enum to GetSystemMetrics() param
 292 //
 293 // if the constant is not defined, put -1 in the table to indicate that it is
 294 // unknown
 295 static const int gs_metricsMap[] =
 296 {
 297     -1,  // wxSystemMetric enums start at 1, so give a dummy value for pos 0.
 298 #if defined(__WIN32__) && !defined(__WXWINCE__)
 299     SM_CMOUSEBUTTONS,
 300 #else
 301     -1,
 302 #endif
 303
 304     SM_CXBORDER,
 305     SM_CYBORDER,
 306     SM_CXCURSOR,
 307     SM_CYCURSOR,
 308     SM_CXDOUBLECLK,
 309     SM_CYDOUBLECLK,
 310 #if defined(__WIN32__) && defined(SM_CXDRAG)
 311     SM_CXDRAG,
 312     SM_CYDRAG,
 313     SM_CXEDGE,
 314     SM_CYEDGE,
 315 #else
 316     -1, -1, -1, -1,
 317 #endif
 318     SM_CXHSCROLL,
 319     SM_CYHSCROLL,
 320 #ifdef SM_CXHTHUMB
 321     SM_CXHTHUMB,
 322 #else
 323     -1,
 324 #endif
 325     SM_CXICON,
 326     SM_CYICON,
 327     SM_CXICONSPACING,
 328     SM_CYICONSPACING,
 329 #ifdef SM_CXHTHUMB
 330     SM_CXMIN,
 331     SM_CYMIN,
 332 #else
 333     -1, -1,
 334 #endif
 335     SM_CXSCREEN,
 336     SM_CYSCREEN,
 337
 338 #if defined(__WIN32__) && defined(SM_CXSIZEFRAME)
 339     SM_CXSIZEFRAME,
 340     SM_CYSIZEFRAME,
 341     SM_CXSMICON,
 342     SM_CYSMICON,
 343 #else
 344     -1, -1, -1, -1,
 345 #endif
 346     SM_CYHSCROLL,
 347     SM_CXVSCROLL,
 348     SM_CXVSCROLL,
 349     SM_CYVSCROLL,
 350 #ifdef SM_CYVTHUMB
 351     SM_CYVTHUMB,
 352 #else
 353     -1,
 354 #endif
 355     SM_CYCAPTION,
 356     SM_CYMENU,
 357 #if defined(__WIN32__) && defined(SM_NETWORK)
 358     SM_NETWORK,
 359 #else
 360     -1,
 361 #endif
 362 #ifdef SM_PENWINDOWS
 363     SM_PENWINDOWS,
 364 #else
 365     -1,
 366 #endif
 367 #if defined(__WIN32__) && defined(SM_SHOWSOUNDS)
 368     SM_SHOWSOUNDS,
 369 #else
 370     -1,
 371 #endif
 372 #ifdef SM_SWAPBUTTON
 373     SM_SWAPBUTTON,
 374 #else
 375     -1
 376 #endif
 377 };
 378
 379 // Get a system metric, e.g. scrollbar size
 380 int wxSystemSettingsNative::GetMetric(wxSystemMetric index)
 381 {
 382 #ifdef __WXMICROWIN__
 383     // TODO: probably use wxUniv themes functionality
 384     return 0;
 385 #else // !__WXMICROWIN__
 386     wxCHECK_MSG( index > 0 && (size_t)index < WXSIZEOF(gs_metricsMap), 0,
 387                  _T("invalid metric") );
 388
 389     int indexMSW = gs_metricsMap[index];
 390     if ( indexMSW == -1 )
 391     {
 392         // not supported under current system
 393         return 0;
 394     }
 395
 396     int rc = ::GetSystemMetrics(indexMSW);
 397     if ( index == wxSYS_NETWORK_PRESENT )
 398     {
 399         // only the last bit is significant according to the MSDN
 400         rc &= 1;
 401     }
 402
 403     return rc;
 404 #endif // __WXMICROWIN__/!__WXMICROWIN__
 405 }
 406
 407 bool wxSystemSettingsNative::HasFeature(wxSystemFeature index)
 408 {
 409     switch ( index )
 410     {
 411         case wxSYS_CAN_ICONIZE_FRAME:
 412         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 413             return true;
 414
 415         default:
 416             wxFAIL_MSG( _T("unknown system feature") );
 417
 418             return false;
 419     }
 420 }
 421
 422 // ----------------------------------------------------------------------------
 423 // function from wx/msw/wrapcctl.h: there is really no other place for it...
 424 // ----------------------------------------------------------------------------
 425
 426 #if wxUSE_LISTCTRL || wxUSE_TREECTRL
 427
 428 extern wxFont wxGetCCDefaultFont()
 429 {
 430 #ifndef __WXWINCE__
 431     // under the systems enumerated below (anything released after Win98), the
 432     // default font used for the common controls seems to be the desktop font
 433     // which is also used for the icon titles and not the stock default GUI
 434     // font
 435     bool useIconFont;
 436     int verMaj, verMin;
 437     switch ( wxGetOsVersion(&verMaj, &verMin) )
 438     {
 439         case wxWIN95:
 440             // 4.10 is Win98
 441             useIconFont = verMin == 4 && verMin >= 10;
 442             break;
 443
 444         case wxWINDOWS_NT:
 445             // 5.0 is Win2k
 446             useIconFont = verMaj >= 5;
 447             break;
 448
 449         default:
 450             useIconFont = false;
 451     }
 452
 453     if ( useIconFont )
 454     {
 455         LOGFONT lf;
 456         if ( ::SystemParametersInfo
 457                (
 458                     SPI_GETICONTITLELOGFONT,
 459                     sizeof(lf),
 460                     &lf,
 461                     0
 462                ) )
 463         {
 464             return wxFont(wxCreateFontFromLogFont(&lf));
 465         }
 466         else
 467         {
 468             wxLogLastError(_T("SystemParametersInfo(SPI_GETICONTITLELOGFONT"));
 469         }
 470     }
 471 #endif // __WXWINCE__
 472
 473     // fall back to the default font for the normal controls
 474     return wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 475 }
 476
 477 #endif // wxUSE_LISTCTRL || wxUSE_TREECTRL