Parts of wxSizer::Show() extracted into wxSizer::GetItem() (together with documentation).

[wxWidgets.git] / src / common / imagpng.cpp

diff --git a/src/common/imagpng.cpp b/src/common/imagpng.cpp
index 250fac506acf6d28c269c35c0d0d6689b403ef6b..8b5d4cd9f2125084c262702282f3f475bf81abc7 100644 (file)
--- a/src/common/imagpng.cpp
+++ b/src/common/imagpng.cpp
@@ -321,7 +321,7 @@ bool wxPNGHandler::DoCanRead( wxInputStream& stream )
     unsigned char hdr[4];
 
     if ( !stream.Read(hdr, WXSIZEOF(hdr)) )
-        return FALSE;
+        return false;
 
     return memcmp(hdr, "\211PNG", WXSIZEOF(hdr)) == 0;
 }
@@ -570,7 +570,7 @@ wxPNGHandler::LoadFile(wxImage *image,
         png_set_expand( png_ptr );
     png_set_filler( png_ptr, 0xff, PNG_FILLER_AFTER );
 
-    image->Create( (int)width, (int)height );
+    image->Create((int)width, (int)height, (bool) false /* no need to init pixels */);
 
     if (!image->Ok())
         goto error;
@@ -600,7 +600,7 @@ wxPNGHandler::LoadFile(wxImage *image,
         free( lines[i] );
     free( lines );
 
-    return TRUE;
+    return true;
 
 error:
     if (verbose)
@@ -626,7 +626,7 @@ error:
         else
             png_destroy_read_struct( &png_ptr, (png_infopp) NULL, (png_infopp) NULL );
     }
-    return FALSE;
+    return false;
 }
 
 // ----------------------------------------------------------------------------
@@ -645,7 +645,7 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
     {
         if (verbose)
            wxLogError(_("Couldn't save PNG image."));
-        return FALSE;
+        return false;
     }
 
     png_set_error_fn(png_ptr, (png_voidp)NULL, wx_png_error, wx_png_warning);
@@ -656,7 +656,7 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
         png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
         if (verbose)
            wxLogError(_("Couldn't save PNG image."));
-        return FALSE;
+        return false;
     }
 
     if (setjmp(wxinfo.jmpbuf))
@@ -664,7 +664,7 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
         png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
         if (verbose)
            wxLogError(_("Couldn't save PNG image."));
-        return FALSE;
+        return false;
     }
 
     // NB: please see the comment near wxPNGInfoStruct declaration for
@@ -689,7 +689,7 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
     if (!data)
     {
         png_destroy_write_struct( &png_ptr, (png_infopp)NULL );
-        return FALSE;
+        return false;
     }
 
     for (int y = 0; y < image->GetHeight(); y++)
@@ -700,7 +700,11 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
             data[(x << 2) + 0] = *ptr++;
             data[(x << 2) + 1] = *ptr++;
             data[(x << 2) + 2] = *ptr++;
-            if (( !image->HasMask() ) || \
+            if ( image->HasAlpha() )
+            {
+                data[(x << 2) + 3] = image->GetAlpha(x, y);
+            }
+            else if (( !image->HasMask() ) || \
                 (data[(x << 2) + 0] != image->GetMaskRed()) || \
                 (data[(x << 2) + 1] != image->GetMaskGreen()) || \
                 (data[(x << 2) + 2] != image->GetMaskBlue()))
@@ -720,7 +724,7 @@ bool wxPNGHandler::SaveFile( wxImage *image, wxOutputStream& stream, bool verbos
     png_write_end( png_ptr, info_ptr );
     png_destroy_write_struct( &png_ptr, (png_infopp)&info_ptr );
 
-    return TRUE;
+    return true;
 }
 
 #ifdef __VISUALC__