src/msw/uxtheme.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/uxtheme.cpp
   3 // Purpose:     implements wxUxThemeEngine class: support for XP themes
   4 // Author:
   5 // Modified by:
   6 // Created:     2003
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2003 wxWindows Dev-Team
   9 // License:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 #ifdef __GNUG__
  17     #pragma implementation "uxtheme.h"
  18 #endif
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  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 #if wxUSE_UXTHEME
  32
  33 #ifndef WX_PRECOMP
  34     #include "wx/app.h"
  35     #include "wx/toplevel.h"
  36     #include "wx/string.h"
  37     #include "wx/log.h"
  38 #endif //WX_PRECOMP
  39
  40 #include "wx/module.h"
  41
  42 #include "wx/msw/wrapwin.h"
  43
  44 #include "wx/msw/uxtheme.h"
  45 #include "wx/msw/private.h"
  46
  47 // ============================================================================
  48 // wxUxThemeModule
  49 // ============================================================================
  50
  51 // this module is responsable for deleting the theme engine
  52 class wxUxThemeModule : public wxModule
  53 {
  54 public:
  55         virtual bool OnInit() { return true; }
  56         virtual void OnExit()
  57         {
  58                 if ( wxUxThemeEngine::ms_themeEngine )
  59                 {
  60             // this is probably not necessary right now but try to be careful
  61             // and avoid the problems which we might have if someone ever
  62             // decides to show a message box using the theme engine from
  63             // wxUxThemeEngine dtor (e.g. from wxDynamicLibrary dtor...) or
  64             // something like this
  65             wxUxThemeEngine *themeEngine = wxUxThemeEngine::ms_themeEngine;
  66             wxUxThemeEngine::ms_themeEngine = NULL;
  67             wxUxThemeEngine::ms_isThemeEngineAvailable = false;
  68
  69                         delete themeEngine;
  70                 }
  71         }
  72
  73
  74         DECLARE_DYNAMIC_CLASS(wxUxThemeModule)
  75 };
  76
  77 IMPLEMENT_DYNAMIC_CLASS(wxUxThemeModule, wxModule)
  78
  79 // ============================================================================
  80 // wxUxThemeEngine implementation
  81 // ============================================================================
  82
  83 wxUxThemeEngine *wxUxThemeEngine::ms_themeEngine = NULL;
  84 int wxUxThemeEngine::ms_isThemeEngineAvailable = -1;        // unknown
  85
  86 wxUxThemeEngine* wxUxThemeEngine::Get()
  87 {
  88     // we assume that themes are only used in the main thread hence no need for
  89     // critical section here
  90     if ( ms_isThemeEngineAvailable == -1 )
  91     {
  92         // we're called or the first time, check if the themes are available
  93         ms_themeEngine = new wxUxThemeEngine;
  94         if ( !ms_themeEngine->Initialize() )
  95         {
  96             // can't use themes, probably because the system doesn't support
  97             // them, don't do it again
  98             delete ms_themeEngine;
  99             ms_themeEngine = NULL;
 100
 101             ms_isThemeEngineAvailable = false;
 102         }
 103         else // initialized ok
 104         {
 105             ms_isThemeEngineAvailable = true;
 106         }
 107     }
 108
 109     return ms_themeEngine;
 110 }
 111
 112 bool wxUxThemeEngine::Initialize()
 113 {
 114     if ( !m_dllUxTheme.Load(_T("uxtheme.dll")) )
 115         return false;
 116
 117 #define RESOLVE_UXTHEME_FUNCTION(type, funcname)                              \
 118     funcname = (type)m_dllUxTheme.GetSymbol(_T(#funcname));                   \
 119     if ( !funcname )                                                          \
 120         return false
 121
 122     RESOLVE_UXTHEME_FUNCTION(PFNWXUOPENTHEMEDATA, OpenThemeData);
 123     RESOLVE_UXTHEME_FUNCTION(PFNWXUCLOSETHEMEDATA, CloseThemeData);
 124     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEBACKGROUND, DrawThemeBackground);
 125     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMETEXT, DrawThemeText);
 126     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEBACKGROUNDCONTENTRECT, GetThemeBackgroundContentRect);
 127     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEBACKGROUNDEXTENT, GetThemeBackgroundExtent);
 128     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEPARTSIZE, GetThemePartSize);
 129     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMETEXTEXTENT, GetThemeTextExtent);
 130     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMETEXTMETRICS, GetThemeTextMetrics);
 131     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEBACKGROUNDREGION, GetThemeBackgroundRegion);
 132     RESOLVE_UXTHEME_FUNCTION(PFNWXUHITTESTTHEMEBACKGROUND, HitTestThemeBackground);
 133     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEEDGE, DrawThemeEdge);
 134     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEICON, DrawThemeIcon);
 135     RESOLVE_UXTHEME_FUNCTION(PFNWXUISTHEMEPARTDEFINED, IsThemePartDefined);
 136     RESOLVE_UXTHEME_FUNCTION(PFNWXUISTHEMEBACKGROUNDPARTIALLYTRANSPARENT, IsThemeBackgroundPartiallyTransparent);
 137     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMECOLOR, GetThemeColor);
 138     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEMETRIC, GetThemeMetric);
 139     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESTRING, GetThemeString);
 140     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEBOOL, GetThemeBool);
 141     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEINT, GetThemeInt);
 142     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEENUMVALUE, GetThemeEnumValue);
 143     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEPOSITION, GetThemePosition);
 144     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEFONT, GetThemeFont);
 145     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMERECT, GetThemeRect);
 146     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEMARGINS, GetThemeMargins);
 147     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEINTLIST, GetThemeIntList);
 148     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEPROPERTYORIGIN, GetThemePropertyOrigin);
 149     RESOLVE_UXTHEME_FUNCTION(PFNWXUSETWINDOWTHEME, SetWindowTheme);
 150     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEFILENAME, GetThemeFilename);
 151     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSCOLOR, GetThemeSysColor);
 152     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSCOLORBRUSH, GetThemeSysColorBrush);
 153     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSBOOL, GetThemeSysBool);
 154     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSSIZE, GetThemeSysSize);
 155     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSFONT, GetThemeSysFont);
 156     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSSTRING, GetThemeSysString);
 157     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMESYSINT, GetThemeSysInt);
 158     RESOLVE_UXTHEME_FUNCTION(PFNWXUISTHEMEACTIVE, IsThemeActive);
 159     RESOLVE_UXTHEME_FUNCTION(PFNWXUISAPPTHEMED, IsAppThemed);
 160     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETWINDOWTHEME, GetWindowTheme);
 161     RESOLVE_UXTHEME_FUNCTION(PFNWXUENABLETHEMEDIALOGTEXTURE, EnableThemeDialogTexture);
 162     RESOLVE_UXTHEME_FUNCTION(PFNWXUISTHEMEDIALOGTEXTUREENABLED, IsThemeDialogTextureEnabled);
 163     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEAPPPROPERTIES, GetThemeAppProperties);
 164     RESOLVE_UXTHEME_FUNCTION(PFNWXUSETTHEMEAPPPROPERTIES, SetThemeAppProperties);
 165     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETCURRENTTHEMENAME, GetCurrentThemeName);
 166     RESOLVE_UXTHEME_FUNCTION(PFNWXUGETTHEMEDOCUMENTATIONPROPERTY, GetThemeDocumentationProperty);
 167     RESOLVE_UXTHEME_FUNCTION(PFNWXUDRAWTHEMEPARENTBACKGROUND, DrawThemeParentBackground);
 168     RESOLVE_UXTHEME_FUNCTION(PFNWXUENABLETHEMING, EnableTheming);
 169
 170 #undef RESOLVE_UXTHEME_FUNCTION
 171
 172     return true;
 173 }
 174
 175 #endif // wxUSE_UXTHEME
 176