corrected content vs structure calculation

[wxWidgets.git] / src / html / m_image.cpp

diff --git a/src/html/m_image.cpp b/src/html/m_image.cpp
index bc85ae290b3f8a5a83ce0ada993b7d43e96b6a33..58aaa45e230843edf0f497a9724abc95a9300f8c 100644 (file)
--- a/src/html/m_image.cpp
+++ b/src/html/m_image.cpp
@@ -7,7 +7,7 @@
 // Licence:     wxWindows Licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation
 #endif
 
@@ -71,6 +71,9 @@ class wxHtmlImageMapAreaCell : public wxHtmlCell
                   int WXUNUSED(x), int WXUNUSED(y),
                   int WXUNUSED(view_y1), int WXUNUSED(view_y2),
                   wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+
+    DECLARE_NO_COPY_CLASS(wxHtmlImageMapAreaCell)
 };
 
 
@@ -247,6 +250,8 @@ class wxHtmlImageMapCell : public wxHtmlCell
                   int WXUNUSED(x), int WXUNUSED(y),
                   int WXUNUSED(view_y1), int WXUNUSED(view_y2),
                   wxHtmlRenderingInfo& WXUNUSED(info)) {}
+
+    DECLARE_NO_COPY_CLASS(wxHtmlImageMapCell)
 };
 
 
@@ -459,12 +464,16 @@ void wxHtmlImageCell::SetImage(const wxImage& img)
         if ( m_bmpH == -1 )
             m_bmpH = hh;
 
+        // Only scale the bitmap at the rendering stage,
+        // so we don't lose quality twice
+/*
         if ((m_bmpW != ww) || (m_bmpH != hh))
         {
             wxImage img2 = img.Scale(m_bmpW, m_bmpH);
             m_bitmap = new wxBitmap(img2);
         }
         else
+*/
             m_bitmap = new wxBitmap(img);
     }
 }
@@ -500,7 +509,8 @@ void wxHtmlImageCell::AdvanceAnimation(wxTimer *timer)
             wxBitmap bmp(img);
             wxMemoryDC dc;
             dc.SelectObject(*m_bitmap);
-            dc.DrawBitmap(bmp, m_gifDecoder->GetLeft(), m_gifDecoder->GetTop());
+            dc.DrawBitmap(bmp, m_gifDecoder->GetLeft(), m_gifDecoder->GetTop(),
+                          TRUE /* use mask */);
         }
         else
             SetImage(img);
@@ -541,12 +551,21 @@ void wxHtmlImageCell::Draw(wxDC& dc, int x, int y,
     }
     if ( m_bitmap )
     {
+        // We add in the scaling from the desired bitmap width
+        // and height, so we only do the scaling once.
+        double imageScaleX = 1.0;
+        double imageScaleY = 1.0;
+        if (m_bmpW != m_bitmap->GetWidth())
+            imageScaleX = (double) m_bmpW / (double) m_bitmap->GetWidth();
+        if (m_bmpH != m_bitmap->GetHeight())
+            imageScaleY = (double) m_bmpH / (double) m_bitmap->GetHeight();
+        
         double us_x, us_y;
         dc.GetUserScale(&us_x, &us_y);
-        dc.SetUserScale(us_x * m_scale, us_y * m_scale);
+        dc.SetUserScale(us_x * m_scale * imageScaleX, us_y * m_scale * imageScaleY);
 
-        dc.DrawBitmap(*m_bitmap, (int) ((x + m_PosX) / m_scale),
-                                 (int) ((y + m_PosY) / m_scale), TRUE);
+        dc.DrawBitmap(*m_bitmap, (int) ((x + m_PosX) / (m_scale*imageScaleX)),
+                                 (int) ((y + m_PosY) / (m_scale*imageScaleY)), TRUE);
         dc.SetUserScale(us_x, us_y);
     }
 }
@@ -588,6 +607,7 @@ wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
 //--------------------------------------------------------------------------------
 
 TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
+    TAG_HANDLER_CONSTR(IMG) { }
 
     TAG_HANDLER_PROC(tag)
     {