X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/9a83f860948059b0273b5cc6d9e43fadad3ebfca..4e15d1caa03346c126015019c1fdf093033ef40b:/src/msw/gdiimage.cpp?ds=sidebyside

diff --git a/src/msw/gdiimage.cpp b/src/msw/gdiimage.cpp
index 5b4c3d6b13..845cbb3d69 100644
--- a/src/msw/gdiimage.cpp
+++ b/src/msw/gdiimage.cpp
@@ -39,6 +39,18 @@
 #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>
@@ -173,6 +185,27 @@ 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
 // ----------------------------------------------------------------------------
@@ -181,6 +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
@@ -306,8 +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
 }
 
@@ -323,9 +362,9 @@ bool wxBMPResourceHandler::LoadFile(wxBitmap *bitmap,
                                     int WXUNUSED(desiredHeight))
 {
     // TODO: load colourmap.
-    bitmap->SetHBITMAP((WXHBITMAP)::LoadBitmap(wxGetInstance(), name.wx_str()));
+    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."),
@@ -438,7 +477,7 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
          desiredHeight == ::GetSystemMetrics(SM_CYICON) )
     {
         // get the specified large icon from file
-        if ( !::ExtractIconEx(nameReal.wx_str(), 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
@@ -451,7 +490,7 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
               desiredHeight == ::GetSystemMetrics(SM_CYSMICON) )
     {
         // get the specified small icon from file
-        if ( !::ExtractIconEx(nameReal.wx_str(), iconIndex, NULL, &hicon, 1) )
+        if ( !::ExtractIconEx(nameReal.t_str(), iconIndex, NULL, &hicon, 1) )
         {
             wxLogTrace(wxT("iconload"),
                        wxT("No small icons found in the file '%s'."),
@@ -464,7 +503,7 @@ bool wxICOFileHandler::LoadIcon(wxIcon *icon,
     if ( !hicon )
     {
         // take any size icon from the file by index
-        hicon = ::ExtractIcon(wxGetInstance(), nameReal.wx_str(), iconIndex);
+        hicon = ::ExtractIcon(wxGetInstance(), nameReal.t_str(), iconIndex);
     }
 #endif
 
@@ -494,7 +533,7 @@ 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,
@@ -518,13 +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.wx_str(), IMAGE_ICON,
+        hicon = (HICON)::LoadImage(wxGetInstance(), name.t_str(), IMAGE_ICON,
                                     desiredWidth, desiredHeight,
                                     LR_DEFAULTCOLOR);
     }
     else
     {
-        hicon = ::LoadIcon(wxGetInstance(), name.wx_str());
+        hicon = ::LoadIcon(wxGetInstance(), name.t_str());
     }
 
     // next check if it's not a standard icon
@@ -559,9 +598,58 @@ 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
 // ----------------------------------------------------------------------------