]> git.saurik.com Git - wxWidgets.git/blobdiff - src/msw/gdiimage.cpp
Fix broken and missing DataView interface items for Phoenix
[wxWidgets.git] / src / msw / gdiimage.cpp
index 2e6ae1b7f59c6507d795af7bcf6c9ec888795161..845cbb3d69f93a0aff081fc8eff2545713088446 100644 (file)
@@ -1,5 +1,5 @@
 ///////////////////////////////////////////////////////////////////////////////
-// Name:        msw/gdiimage.cpp
+// Name:        src/msw/gdiimage.cpp
 // Purpose:     wxGDIImage implementation
 // Author:      Vadim Zeitlin
 // Modified by:
 // headers
 // ----------------------------------------------------------------------------
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "gdiimage.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 #ifndef WX_PRECOMP
     #include "wx/string.h"
     #include "wx/log.h"
+    #include "wx/app.h"
+    #include "wx/bitmap.h"
 #endif // WX_PRECOMP
 
 #include "wx/msw/private.h"
 
-#include "wx/app.h"
-
-#include "wx/bitmap.h"
 #include "wx/msw/gdiimage.h"
 
 #if wxUSE_WXDIB
 #include "wx/msw/dib.h"
 #endif
 
+// By default, use PNG resource handler if we can, i.e. have support for
+// loading PNG images in the library. This symbol could be predefined as 0 to
+// avoid doing this if anybody ever needs to do it for some reason.
+#if !defined(wxUSE_PNG_RESOURCE_HANDLER) && wxUSE_LIBPNG && wxUSE_IMAGE
+    #define wxUSE_PNG_RESOURCE_HANDLER 1
+#endif
+
+#if wxUSE_PNG_RESOURCE_HANDLER
+    #include "wx/image.h"
+    #include "wx/utils.h"       // For wxLoadUserResource()
+#endif
+
 #ifdef __WXWINCE__
 #include <winreg.h>
 #include <shellapi.h>
 #endif
 
+#include "wx/file.h"
+
 #include "wx/listimpl.cpp"
-WX_DEFINE_LIST(wxGDIImageHandlerList);
+WX_DEFINE_LIST(wxGDIImageHandlerList)
 
 // ----------------------------------------------------------------------------
 // private classes
@@ -64,17 +73,17 @@ WX_DEFINE_LIST(wxGDIImageHandlerList);
 class WXDLLEXPORT wxBMPFileHandler : public wxBitmapHandler
 {
 public:
-    wxBMPFileHandler() : wxBitmapHandler(_T("Windows bitmap file"), _T("bmp"),
+    wxBMPFileHandler() : wxBitmapHandler(wxT("Windows bitmap file"), wxT("bmp"),
                                          wxBITMAP_TYPE_BMP)
     {
     }
 
     virtual bool LoadFile(wxBitmap *bitmap,
-                          const wxString& name, long flags,
+                          const wxString& name, wxBitmapType flags,
                           int desiredWidth, int desiredHeight);
-    virtual bool SaveFile(wxBitmap *bitmap,
-                          const wxString& name, int type,
-                          const wxPalette *palette = NULL);
+    virtual bool SaveFile(const wxBitmap *bitmap,
+                          const wxString& name, wxBitmapType type,
+                          const wxPalette *palette = NULL) const;
 
 private:
     DECLARE_DYNAMIC_CLASS(wxBMPFileHandler)
@@ -83,14 +92,14 @@ private:
 class WXDLLEXPORT wxBMPResourceHandler: public wxBitmapHandler
 {
 public:
-    wxBMPResourceHandler() : wxBitmapHandler(_T("Windows bitmap resource"),
+    wxBMPResourceHandler() : wxBitmapHandler(wxT("Windows bitmap resource"),
                                              wxEmptyString,
                                              wxBITMAP_TYPE_BMP_RESOURCE)
     {
     }
 
     virtual bool LoadFile(wxBitmap *bitmap,
-                          const wxString& name, long flags,
+                          const wxString& name, wxBitmapType flags,
                           int desiredWidth, int desiredHeight);
 
 private:
@@ -100,15 +109,15 @@ private:
 class WXDLLEXPORT wxIconHandler : public wxGDIImageHandler
 {
 public:
-    wxIconHandler(const wxString& name, const wxString& ext, long type)
+    wxIconHandler(const wxString& name, const wxString& ext, wxBitmapType type)
         : wxGDIImageHandler(name, ext, type)
     {
     }
 
     // creating and saving icons is not supported
     virtual bool Create(wxGDIImage *WXUNUSED(image),
-                        void *WXUNUSED(data),
-                        long WXUNUSED(flags),
+                        const void* WXUNUSED(data),
+                        wxBitmapType WXUNUSED(flags),
                         int WXUNUSED(width),
                         int WXUNUSED(height),
                         int WXUNUSED(depth) = 1)
@@ -116,41 +125,42 @@ public:
         return false;
     }
 
-    virtual bool Save(wxGDIImage *WXUNUSED(image),
+    virtual bool Save(const wxGDIImage *WXUNUSED(image),
                       const wxString& WXUNUSED(name),
-                      int WXUNUSED(type))
+                      wxBitmapType WXUNUSED(type)) const
     {
         return false;
     }
 
     virtual bool Load(wxGDIImage *image,
                       const wxString& name,
-                      long flags,
+                      wxBitmapType flags,
                       int desiredWidth, int desiredHeight)
     {
         wxIcon *icon = wxDynamicCast(image, wxIcon);
-        wxCHECK_MSG( icon, false, _T("wxIconHandler only works with icons") );
+        wxCHECK_MSG( icon, false, wxT("wxIconHandler only works with icons") );
 
         return LoadIcon(icon, name, flags, desiredWidth, desiredHeight);
     }
 
 protected:
     virtual bool LoadIcon(wxIcon *icon,
-                          const wxString& name, long flags,
+                          const wxString& name, wxBitmapType flags,
                           int desiredWidth = -1, int desiredHeight = -1) = 0;
 };
 
 class WXDLLEXPORT wxICOFileHandler : public wxIconHandler
 {
 public:
-    wxICOFileHandler() : wxIconHandler(_T("ICO icon file"),
-                                       _T("ico"),
+    wxICOFileHandler() : wxIconHandler(wxT("ICO icon file"),
+                                       wxT("ico"),
                                        wxBITMAP_TYPE_ICO)
     {
     }
 
+protected:
     virtual bool LoadIcon(wxIcon *icon,
-                          const wxString& name, long flags,
+                          const wxString& name, wxBitmapType flags,
                           int desiredWidth = -1, int desiredHeight = -1);
 
 private:
@@ -160,20 +170,42 @@ private:
 class WXDLLEXPORT wxICOResourceHandler: public wxIconHandler
 {
 public:
-    wxICOResourceHandler() : wxIconHandler(_T("ICO resource"),
-                                           _T("ico"),
+    wxICOResourceHandler() : wxIconHandler(wxT("ICO resource"),
+                                           wxT("ico"),
                                            wxBITMAP_TYPE_ICO_RESOURCE)
     {
     }
 
+protected:
     virtual bool LoadIcon(wxIcon *icon,
-                          const wxString& name, long flags,
+                          const wxString& name, wxBitmapType flags,
                           int desiredWidth = -1, int desiredHeight = -1);
 
 private:
     DECLARE_DYNAMIC_CLASS(wxICOResourceHandler)
 };
 
+#if wxUSE_PNG_RESOURCE_HANDLER
+
+class WXDLLEXPORT wxPNGResourceHandler : public wxBitmapHandler
+{
+public:
+    wxPNGResourceHandler() : wxBitmapHandler(wxS("Windows PNG resource"),
+                                             wxString(),
+                                             wxBITMAP_TYPE_PNG_RESOURCE)
+    {
+    }
+
+    virtual bool LoadFile(wxBitmap *bitmap,
+                          const wxString& name, wxBitmapType flags,
+                          int desiredWidth, int desiredHeight);
+
+private:
+    wxDECLARE_DYNAMIC_CLASS(wxPNGResourceHandler);
+};
+
+#endif // wxUSE_PNG_RESOURCE_HANDLER
+
 // ----------------------------------------------------------------------------
 // wxWin macros
 // ----------------------------------------------------------------------------
@@ -182,6 +214,9 @@ IMPLEMENT_DYNAMIC_CLASS(wxBMPFileHandler, wxBitmapHandler)
 IMPLEMENT_DYNAMIC_CLASS(wxBMPResourceHandler, wxBitmapHandler)
 IMPLEMENT_DYNAMIC_CLASS(wxICOFileHandler, wxObject)
 IMPLEMENT_DYNAMIC_CLASS(wxICOResourceHandler, wxObject)
+#if wxUSE_PNG_RESOURCE_HANDLER
+IMPLEMENT_DYNAMIC_CLASS(wxPNGResourceHandler, wxBitmapHandler)
+#endif // wxUSE_PNG_RESOURCE_HANDLER
 
 // ----------------------------------------------------------------------------
 // private functions
@@ -263,7 +298,7 @@ wxGDIImageHandler *wxGDIImage::FindHandler(const wxString& extension,
     while ( node )
     {
         wxGDIImageHandler *handler = node->GetData();
-        if ( (handler->GetExtension() = extension) &&
+        if ( (handler->GetExtension() == extension) &&
              (type == -1 || handler->GetType() == type) )
         {
             return handler;
@@ -307,8 +342,11 @@ void wxGDIImage::InitStandardHandlers()
 #ifndef __WXMICROWIN__
     AddHandler(new wxBMPResourceHandler);
     AddHandler(new wxBMPFileHandler);
-    AddHandler(new wxICOResourceHandler);
     AddHandler(new wxICOFileHandler);
+    AddHandler(new wxICOResourceHandler);
+#if wxUSE_PNG_RESOURCE_HANDLER
+    AddHandler(new wxPNGResourceHandler);
+#endif // wxUSE_PNG_RESOURCE_HANDLER
 #endif
 }
 
@@ -319,14 +357,14 @@ void wxGDIImage::InitStandardHandlers()
 // ----------------------------------------------------------------------------
 
 bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap,
-                                    const wxString& name, long WXUNUSED(flags),
+                                    const wxString& name, wxBitmapType WXUNUSED(flags),
                                     int WXUNUSED(desiredWidth),
                                     int WXUNUSED(desiredHeight))
 {
     // TODO: load colourmap.
-    bitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), name));
+    bitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), name.t_str()));
 
-    if ( !bitmap->Ok() )
+    if ( !bitmap->IsOk() )
     {
         // it's probably not found
         wxLogError(wxT("Can't load bitmap '%s' from resources! Check .rc file."),
@@ -345,38 +383,41 @@ bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap,
     bitmap->SetHeight(bm.bmHeight);
     bitmap->SetDepth(bm.bmBitsPixel);
 
+    // use 0xc0c0c0 as transparent colour by default
+    bitmap->SetMask(new wxMask(*bitmap, *wxLIGHT_GREY));
+
     return true;
 }
 
 bool wxBMPFileHandler::LoadFile(wxBitmap *bitmap,
-                                const wxString& name, long WXUNUSED(flags),
+                                const wxString& name, wxBitmapType WXUNUSED(flags),
                                 int WXUNUSED(desiredWidth),
                                 int WXUNUSED(desiredHeight))
 {
 #if wxUSE_WXDIB
-    wxCHECK_MSG( bitmap, false, _T("NULL bitmap in LoadFile") );
+    wxCHECK_MSG( bitmap, false, wxT("NULL bitmap in LoadFile") );
 
     wxDIB dib(name);
 
     return dib.IsOk() && bitmap->CopyFromDIB(dib);
 #else
-    return FALSE;
+    return false;
 #endif
 }
 
-bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap,
+bool wxBMPFileHandler::SaveFile(const wxBitmap *bitmap,
                                 const wxString& name,
-                                int WXUNUSED(type),
-                                const wxPalette * WXUNUSED(pal))
+                                wxBitmapType WXUNUSED(type),
+                                const wxPalette * WXUNUSED(pal)) const
 {
 #if wxUSE_WXDIB
-    wxCHECK_MSG( bitmap, false, _T("NULL bitmap in SaveFile") );
+    wxCHECK_MSG( bitmap, false, wxT("NULL bitmap in SaveFile") );
 
     wxDIB dib(*bitmap);
 
     return dib.Save(name);
 #else
-    return FALSE;
+    return false;
 #endif
 }
 
@@ -386,7 +427,7 @@ bool wxBMPFileHandler::SaveFile(wxBitmap *bitmap,
 
 bool wxICOFileHandler::LoadIcon(wxIcon *icon,
                                 const wxString& name,
-                                long WXUNUSED(flags),
+                                wxBitmapType WXUNUSED(flags),
                                 int desiredWidth, int desiredHeight)
 {
     icon->UnRef();
@@ -436,12 +477,12 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
          desiredHeight == ::GetSystemMetrics(SM_CYICON) )
     {
         // get the specified large icon from file
-        if ( !::ExtractIconEx(nameReal, iconIndex, &hicon, NULL, 1) )
+        if ( !::ExtractIconEx(nameReal.t_str(), iconIndex, &hicon, NULL, 1) )
         {
             // it is not an error, but it might still be useful to be informed
             // about it optionally
-            wxLogTrace(_T("iconload"),
-                       _T("No large icons found in the file '%s'."),
+            wxLogTrace(wxT("iconload"),
+                       wxT("No large icons found in the file '%s'."),
                        name.c_str());
         }
     }
@@ -449,10 +490,10 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
               desiredHeight == ::GetSystemMetrics(SM_CYSMICON) )
     {
         // get the specified small icon from file
-        if ( !::ExtractIconEx(nameReal, iconIndex, NULL, &hicon, 1) )
+        if ( !::ExtractIconEx(nameReal.t_str(), iconIndex, NULL, &hicon, 1) )
         {
-            wxLogTrace(_T("iconload"),
-                       _T("No small icons found in the file '%s'."),
+            wxLogTrace(wxT("iconload"),
+                       wxT("No small icons found in the file '%s'."),
                        name.c_str());
         }
     }
@@ -462,13 +503,13 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
     if ( !hicon )
     {
         // take any size icon from the file by index
-        hicon = ::ExtractIcon(wxGetInstance(), nameReal, iconIndex);
+        hicon = ::ExtractIcon(wxGetInstance(), nameReal.t_str(), iconIndex);
     }
 #endif
 
     if ( !hicon )
     {
-        wxLogSysError(_T("Failed to load icon from the file '%s'"),
+        wxLogSysError(wxT("Failed to load icon from the file '%s'"),
                       name.c_str());
 
         return false;
@@ -479,8 +520,8 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
     if ( (desiredWidth != -1 && desiredWidth != size.x) ||
          (desiredHeight != -1 && desiredHeight != size.y) )
     {
-        wxLogTrace(_T("iconload"),
-                   _T("Returning false from wxICOFileHandler::Load because of the size mismatch: actual (%d, %d), requested (%d, %d)"),
+        wxLogTrace(wxT("iconload"),
+                   wxT("Returning false from wxICOFileHandler::Load because of the size mismatch: actual (%d, %d), requested (%d, %d)"),
                    size.x, size.y,
                    desiredWidth, desiredHeight);
 
@@ -492,12 +533,12 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
     icon->SetHICON((WXHICON)hicon);
     icon->SetSize(size.x, size.y);
 
-    return icon->Ok();
+    return icon->IsOk();
 }
 
 bool wxICOResourceHandler::LoadIcon(wxIcon *icon,
                                     const wxString& name,
-                                    long WXUNUSED(flags),
+                                    wxBitmapType WXUNUSED(flags),
                                     int desiredWidth, int desiredHeight)
 {
     HICON hicon;
@@ -506,7 +547,7 @@ bool wxICOResourceHandler::LoadIcon(wxIcon *icon,
     bool hasSize = desiredWidth != -1 || desiredHeight != -1;
 
     wxASSERT_MSG( !hasSize || (desiredWidth != -1 && desiredHeight != -1),
-                  _T("width and height should be either both -1 or not") );
+                  wxT("width and height should be either both -1 or not") );
 
     // try to load the icon from this program first to allow overriding the
     // standard icons (although why one would want to do it considering that
@@ -516,13 +557,13 @@ bool wxICOResourceHandler::LoadIcon(wxIcon *icon,
     // some icon rescaling internally which results in very ugly 16x16 icons
     if ( hasSize )
     {
-        hicon = (HICON)::LoadImage(wxGetInstance(), name, IMAGE_ICON,
+        hicon = (HICON)::LoadImage(wxGetInstance(), name.t_str(), IMAGE_ICON,
                                     desiredWidth, desiredHeight,
                                     LR_DEFAULTCOLOR);
     }
     else
     {
-        hicon = ::LoadIcon(wxGetInstance(), name);
+        hicon = ::LoadIcon(wxGetInstance(), name.t_str());
     }
 
     // next check if it's not a standard icon
@@ -546,6 +587,7 @@ bool wxICOResourceHandler::LoadIcon(wxIcon *icon,
             if ( name == stdIcons[nIcon].name )
             {
                 hicon = ::LoadIcon((HINSTANCE)NULL, stdIcons[nIcon].id);
+                break;
             }
         }
     }
@@ -556,18 +598,68 @@ bool wxICOResourceHandler::LoadIcon(wxIcon *icon,
 
     icon->SetHICON((WXHICON)hicon);
 
-    return icon->Ok();
+    return icon->IsOk();
+}
+
+#if wxUSE_PNG_RESOURCE_HANDLER
+
+// ----------------------------------------------------------------------------
+// PNG handler
+// ----------------------------------------------------------------------------
+
+bool wxPNGResourceHandler::LoadFile(wxBitmap *bitmap,
+                                    const wxString& name,
+                                    wxBitmapType WXUNUSED(flags),
+                                    int WXUNUSED(desiredWidth),
+                                    int WXUNUSED(desiredHeight))
+{
+    const void* pngData = NULL;
+    size_t pngSize = 0;
+
+    // Currently we hardcode RCDATA resource type as this is what is usually
+    // used for the embedded images. We could allow specifying the type as part
+    // of the name in the future (e.g. "type:name" or something like this) if
+    // really needed.
+    if ( !wxLoadUserResource(&pngData, &pngSize,
+                             name,
+                             RT_RCDATA,
+                             wxGetInstance()) )
+    {
+        // Notice that this message is not translated because only the
+        // programmer (and not the end user) can make any use of it.
+        wxLogError(wxS("Bitmap in PNG format \"%s\" not found, check ")
+                   wxS("that the resource file contains \"RCDATA\" ")
+                   wxS("resource with this name."),
+                   name);
+
+        return false;
+    }
+
+    *bitmap = wxBitmap::NewFromPNGData(pngData, pngSize);
+    if ( !bitmap->IsOk() )
+    {
+        wxLogError(wxS("Couldn't load resource bitmap \"%s\" as a PNG. "),
+                   wxS("Have you registered PNG image handler?"),
+                   name);
+
+        return false;
+    }
+
+    return true;
 }
 
+#endif // wxUSE_PNG_RESOURCE_HANDLER
+
 // ----------------------------------------------------------------------------
 // private functions
 // ----------------------------------------------------------------------------
 
-wxSize wxGetHiconSize(HICON hicon)
+wxSize wxGetHiconSize(HICON WXUNUSED_IN_WINCE(hicon))
 {
-    wxSize size(32, 32);    // default
+    wxSize size;
+
 #ifndef __WXWINCE__
-    if ( hicon && wxGetOsVersion() != wxWIN32S )
+    if ( hicon )
     {
         ICONINFO info;
         if ( !::GetIconInfo(hicon, &info) )
@@ -591,9 +683,16 @@ wxSize wxGetHiconSize(HICON hicon)
                 ::DeleteObject(info.hbmColor);
         }
     }
-#endif
+
+    if ( !size.x )
+#endif // !__WXWINCE__
+    {
+        // use default icon size on this hardware
+        size.x = ::GetSystemMetrics(SM_CXICON);
+        size.y = ::GetSystemMetrics(SM_CYICON);
+    }
+
     return size;
 }
 
 #endif // __WXMICROWIN__
-