src/msw/settings.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/settings.cpp
   3 // Purpose:     wxSystemSettings
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "settings.h"
  22 #endif
  23
  24 // For compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28 #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32     #include <stdio.h>
  33     #include "wx/defs.h"
  34     #include "wx/pen.h"
  35     #include "wx/brush.h"
  36     #include "wx/gdicmn.h"
  37 #endif
  38
  39 #include "wx/settings.h"
  40 #include "wx/window.h"
  41 #include "wx/msw/private.h"
  42 #include "wx/module.h"
  43 #include "wx/fontutil.h"
  44
  45 // ----------------------------------------------------------------------------
  46 // private classes
  47 // ----------------------------------------------------------------------------
  48
  49 // the module which is used to clean up wxSystemSettings data (this is a
  50 // singleton class so it can't be done in the dtor)
  51 class wxSystemSettingsModule : public wxModule
  52 {
  53     friend class wxSystemSettings;
  54 public:
  55     virtual bool OnInit();
  56     virtual void OnExit();
  57
  58 private:
  59     DECLARE_DYNAMIC_CLASS(wxSystemSettingsModule)
  60 };
  61
  62 // ----------------------------------------------------------------------------
  63 // global data
  64 // ----------------------------------------------------------------------------
  65
  66 static wxFont *gs_fontDefault = NULL;
  67
  68 // ============================================================================
  69 // implementation
  70 // ============================================================================
  71
  72 // ----------------------------------------------------------------------------
  73 // wxSystemSettingsModule
  74 // ----------------------------------------------------------------------------
  75
  76 IMPLEMENT_DYNAMIC_CLASS(wxSystemSettingsModule, wxModule)
  77
  78 bool wxSystemSettingsModule::OnInit()
  79 {
  80     return TRUE;
  81 }
  82
  83 void wxSystemSettingsModule::OnExit()
  84 {
  85     delete gs_fontDefault;
  86     gs_fontDefault = NULL;
  87 }
  88
  89 // ----------------------------------------------------------------------------
  90 // wxSystemSettings
  91 // ----------------------------------------------------------------------------
  92
  93 // TODO: see ::SystemParametersInfo for all sorts of Windows settings.
  94 // Different args are required depending on the id. How does this differ
  95 // from GetSystemMetric, and should it? Perhaps call it GetSystemParameter
  96 // and pass an optional void* arg to get further info.
  97 // Should also have SetSystemParameter.
  98 // Also implement WM_WININICHANGE (NT) / WM_SETTINGCHANGE (Win95)
  99
 100 wxColour wxSystemSettings::GetSystemColour(int index)
 101 {
 102     switch (index)
 103     {
 104         case wxSYS_COLOUR_LISTBOX:
 105             return *wxWHITE;
 106
 107         default:
 108             COLORREF ref = ::GetSysColor(index);
 109             wxColour col(GetRValue(ref), GetGValue(ref), GetBValue(ref));
 110             return col;
 111     }
 112 }
 113
 114 wxFont wxCreateFontFromStockObject(int index)
 115 {
 116     wxFont font;
 117
 118     HFONT hFont = (HFONT) ::GetStockObject(index);
 119     if ( hFont )
 120     {
 121         LOGFONT lf;
 122         if ( ::GetObject(hFont, sizeof(LOGFONT), &lf) != 0 )
 123         {
 124             wxNativeFontInfo info;
 125             info.lf = lf;
 126             // Under MicroWindows we pass the HFONT as well
 127             // because it's hard to convert HFONT -> LOGFONT -> HFONT
 128             // It's OK to delete stock objects, the delete will be ignored.
 129 #ifdef __WXMICROWIN__
 130             font.Create(info, (WXHFONT) hFont);
 131 #else
 132             font.Create(info);
 133 #endif
 134         }
 135         else
 136         {
 137             wxFAIL_MSG( _T("failed to get LOGFONT") );
 138         }
 139     }
 140     else // GetStockObject() failed
 141     {
 142         wxFAIL_MSG( _T("stock font not found") );
 143     }
 144     return font;
 145 }
 146
 147 wxFont wxSystemSettings::GetSystemFont(int index)
 148 {
 149     // wxWindow ctor calls GetSystemFont(wxSYS_DEFAULT_GUI_FONT) so we're
 150     // called fairly often - this is why we cache this particular font
 151     bool isDefaultRequested = index == wxSYS_DEFAULT_GUI_FONT;
 152     if ( isDefaultRequested && gs_fontDefault )
 153     {
 154         return *gs_fontDefault;
 155     }
 156
 157     wxFont font = wxCreateFontFromStockObject(index);
 158
 159     if ( isDefaultRequested )
 160     {
 161         // if we got here it means we hadn't cached it yet - do now
 162         gs_fontDefault = new wxFont(font);
 163     }
 164
 165     return font;
 166 }
 167
 168 // Get a system metric, e.g. scrollbar size
 169 int wxSystemSettings::GetSystemMetric(int index)
 170 {
 171 #ifdef __WXMICROWIN__
 172     // TODO: probably use wxUniv themes functionality
 173     return 0;
 174 #else
 175     switch ( index)
 176     {
 177 #ifdef __WIN32__
 178         case wxSYS_MOUSE_BUTTONS:
 179             return ::GetSystemMetrics(SM_CMOUSEBUTTONS);
 180 #endif
 181
 182         case wxSYS_BORDER_X:
 183             return ::GetSystemMetrics(SM_CXBORDER);
 184         case wxSYS_BORDER_Y:
 185             return ::GetSystemMetrics(SM_CYBORDER);
 186         case wxSYS_CURSOR_X:
 187             return ::GetSystemMetrics(SM_CXCURSOR);
 188         case wxSYS_CURSOR_Y:
 189             return ::GetSystemMetrics(SM_CYCURSOR);
 190         case wxSYS_DCLICK_X:
 191             return ::GetSystemMetrics(SM_CXDOUBLECLK);
 192         case wxSYS_DCLICK_Y:
 193             return ::GetSystemMetrics(SM_CYDOUBLECLK);
 194 #if defined(__WIN32__) && defined(SM_CXDRAG)
 195         case wxSYS_DRAG_X:
 196             return ::GetSystemMetrics(SM_CXDRAG);
 197         case wxSYS_DRAG_Y:
 198             return ::GetSystemMetrics(SM_CYDRAG);
 199         case wxSYS_EDGE_X:
 200             return ::GetSystemMetrics(SM_CXEDGE);
 201         case wxSYS_EDGE_Y:
 202             return ::GetSystemMetrics(SM_CYEDGE);
 203 #endif
 204         case wxSYS_HSCROLL_ARROW_X:
 205             return ::GetSystemMetrics(SM_CXHSCROLL);
 206         case wxSYS_HSCROLL_ARROW_Y:
 207             return ::GetSystemMetrics(SM_CYHSCROLL);
 208         case wxSYS_HTHUMB_X:
 209             return ::GetSystemMetrics(SM_CXHTHUMB);
 210         case wxSYS_ICON_X:
 211             return ::GetSystemMetrics(SM_CXICON);
 212         case wxSYS_ICON_Y:
 213             return ::GetSystemMetrics(SM_CYICON);
 214         case wxSYS_ICONSPACING_X:
 215             return ::GetSystemMetrics(SM_CXICONSPACING);
 216         case wxSYS_ICONSPACING_Y:
 217             return ::GetSystemMetrics(SM_CYICONSPACING);
 218         case wxSYS_WINDOWMIN_X:
 219             return ::GetSystemMetrics(SM_CXMIN);
 220         case wxSYS_WINDOWMIN_Y:
 221             return ::GetSystemMetrics(SM_CYMIN);
 222         case wxSYS_SCREEN_X:
 223             return ::GetSystemMetrics(SM_CXSCREEN);
 224         case wxSYS_SCREEN_Y:
 225             return ::GetSystemMetrics(SM_CYSCREEN);
 226
 227 #if defined(__WIN32__) && defined(SM_CXSIZEFRAME)
 228         case wxSYS_FRAMESIZE_X:
 229             return ::GetSystemMetrics(SM_CXSIZEFRAME);
 230         case wxSYS_FRAMESIZE_Y:
 231             return ::GetSystemMetrics(SM_CYSIZEFRAME);
 232         case wxSYS_SMALLICON_X:
 233             return ::GetSystemMetrics(SM_CXSMICON);
 234         case wxSYS_SMALLICON_Y:
 235             return ::GetSystemMetrics(SM_CYSMICON);
 236 #endif
 237         case wxSYS_HSCROLL_Y:
 238             return ::GetSystemMetrics(SM_CYHSCROLL);
 239         case wxSYS_VSCROLL_X:
 240             return ::GetSystemMetrics(SM_CXVSCROLL);
 241         case wxSYS_VSCROLL_ARROW_X:
 242             return ::GetSystemMetrics(SM_CXVSCROLL);
 243         case wxSYS_VSCROLL_ARROW_Y:
 244             return ::GetSystemMetrics(SM_CYVSCROLL);
 245         case wxSYS_VTHUMB_Y:
 246             return ::GetSystemMetrics(SM_CYVTHUMB);
 247         case wxSYS_CAPTION_Y:
 248             return ::GetSystemMetrics(SM_CYCAPTION);
 249         case wxSYS_MENU_Y:
 250             return ::GetSystemMetrics(SM_CYMENU);
 251 #if defined(__WIN32__) && defined(SM_NETWORK)
 252         case wxSYS_NETWORK_PRESENT:
 253             return ::GetSystemMetrics(SM_NETWORK) & 0x0001;
 254 #endif
 255         case wxSYS_PENWINDOWS_PRESENT:
 256             return ::GetSystemMetrics(SM_PENWINDOWS);
 257 #if defined(__WIN32__) && defined(SM_SHOWSOUNDS)
 258         case wxSYS_SHOW_SOUNDS:
 259             return ::GetSystemMetrics(SM_SHOWSOUNDS);
 260 #endif
 261         case wxSYS_SWAP_BUTTONS:
 262             return ::GetSystemMetrics(SM_SWAPBUTTON);
 263         default:
 264             return 0;
 265     }
 266 #endif
 267     // __WXMICROWIN__
 268 }
 269
 270 bool wxSystemSettings::GetCapability(int index)
 271 {
 272     switch (index)
 273     {
 274         case wxSYS_CAN_ICONIZE_FRAME:
 275         case wxSYS_CAN_DRAW_FRAME_DECORATIONS:
 276             return TRUE; break;
 277         default:
 278             return FALSE;
 279     }
 280 }