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[wxWidgets.git] / src / mgl / bitmap.cpp

diff --git a/src/mgl/bitmap.cpp b/src/mgl/bitmap.cpp
index c280b0b0ac7a82770a2243cfbd20161717055061..3c717d4fe9fa621ca35f8e1e71ed2bc9fde066a2 100644 (file)
--- a/src/mgl/bitmap.cpp
+++ b/src/mgl/bitmap.cpp
@@ -31,6 +31,13 @@
 
 #include <mgraph.hpp>
 
+static bitmap_t *MyMGL_createBitmap(int width, int height,
+                                    int bpp, pixel_format_t *pf)
+{
+    MGLMemoryDC mdc(width, height, bpp, pf);
+    return MGL_getBitmapFromDC(mdc.getDC(), 0, 0, width, height, TRUE);
+}
+
 //-----------------------------------------------------------------------------
 // MGL pixel formats:
 //-----------------------------------------------------------------------------
@@ -51,13 +58,15 @@ static pixel_format_t gs_pixel_format_wxImage =
     {0xFF,0x00,0, 0xFF,0x08,0, 0xFF,0x10,0, 0x00,0x00,0}; // RGB 24bpp for wxImage
 
 //-----------------------------------------------------------------------------
-// wxBitmap
+// wxBitmapRefData
 //-----------------------------------------------------------------------------
 
-class wxBitmapRefData: public wxObjectRefData
+class wxBitmapRefData: public wxGDIRefData
 {
 public:
     wxBitmapRefData();
+    wxBitmapRefData(int width, int height, int bpp);
+    wxBitmapRefData(const wxBitmapRefData& data);
     virtual ~wxBitmapRefData();
 
     virtual bool IsOk() const { return m_bitmap != NULL; }
@@ -68,52 +77,16 @@ public:
     wxPalette      *m_palette;
     wxMask         *m_mask;
     bitmap_t       *m_bitmap;
-};
-
-wxBitmapRefData::wxBitmapRefData()
-{
-    m_mask = NULL;
-    m_width = 0;
-    m_height = 0;
-    m_bpp = 0;
-    m_palette = NULL;
-    m_bitmap = NULL;
-}
-
-wxBitmapRefData::~wxBitmapRefData()
-{
-    if ( m_bitmap )
-        MGL_unloadBitmap(m_bitmap);
-    delete m_mask;
-    delete m_palette;
-}
 
-//-----------------------------------------------------------------------------
-
-#define M_BMPDATA ((wxBitmapRefData *)m_refData)
-
-
-IMPLEMENT_ABSTRACT_CLASS(wxBitmapHandler, wxBitmapHandlerBase)
-IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxBitmapBase)
-
-wxBitmap::wxBitmap(int width, int height, int depth)
-{
-    Create(width, height, depth);
-}
-
-
-static bitmap_t *MyMGL_createBitmap(int width, int height,
-                                    int bpp, pixel_format_t *pf)
-{
-    MGLMemoryDC mdc(width, height, bpp, pf);
-    return MGL_getBitmapFromDC(mdc.getDC(), 0, 0, width, height, TRUE);
-}
+private:
+    void DoCreateBitmap(int width, int height, int depth);
+};
 
-bool wxBitmap::Create(int width, int height, int depth)
+void wxBitmapRefData::DoCreateBitmap(int width, int height, int depth)
 {
-    UnRef();
-
-    wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
+    m_width = width;
+    m_height = height;
+    m_bpp = depth;
 
     pixel_format_t pf_dummy;
     pixel_format_t *pf;
@@ -131,6 +104,7 @@ bool wxBitmap::Create(int width, int height, int depth)
         case 1:
         case 8:
             pf = NULL;
+            mglDepth = 8; // we emulate monochrome bitmaps using 8 bit ones
             break;
         case 15:
             pf = &gs_pixel_format_15;
@@ -146,27 +120,81 @@ bool wxBitmap::Create(int width, int height, int depth)
             break;
         default:
             wxFAIL_MSG(wxT("invalid bitmap depth"));
-            return false;
+            m_bitmap = NULL;
+            return;
     }
 
-    m_refData = new wxBitmapRefData();
-    M_BMPDATA->m_mask = (wxMask *) NULL;
-    M_BMPDATA->m_palette = (wxPalette *) NULL;
-    M_BMPDATA->m_width = width;
-    M_BMPDATA->m_height = height;
-    M_BMPDATA->m_bpp = mglDepth;
+    m_bitmap = MyMGL_createBitmap(width, height, mglDepth, pf);
+}
 
-    if ( mglDepth != 1 )
-    {
-        M_BMPDATA->m_bitmap = MyMGL_createBitmap(width, height, mglDepth, pf);
-    }
-    else
+wxBitmapRefData::wxBitmapRefData()
+{
+    m_width =
+    m_height =
+    m_bpp = 0;
+
+    m_palette = NULL;
+    m_mask = NULL;
+
+    m_bitmap = NULL;
+}
+
+wxBitmapRefData::wxBitmapRefData(int width, int height, int bpp)
+{
+    DoCreateBitmap(width, height, bpp);
+
+    m_palette = NULL;
+    m_mask = NULL;
+}
+
+wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
+{
+    DoCreateBitmap(data.m_width, data.m_height, data.m_bpp);
+
+    m_palette = NULL; // FIXME: should copy
+    m_mask = NULL; // FIXME: should copy
+}
+
+wxBitmapRefData::~wxBitmapRefData()
+{
+    if ( m_bitmap )
+        MGL_unloadBitmap(m_bitmap);
+    delete m_mask;
+    delete m_palette;
+}
+
+
+//-----------------------------------------------------------------------------
+// wxBitmap
+//-----------------------------------------------------------------------------
+
+#define M_BMPDATA ((wxBitmapRefData *)m_refData)
+
+IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxBitmapBase)
+
+wxGDIRefData *wxBitmap::CreateGDIRefData() const
+{
+    return new wxBitmapRefData;
+}
+
+wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const
+{
+    return new wxBitmapRefData(*static_cast<const wxBitmapRefData *>(data));
+}
+
+bool wxBitmap::Create(int width, int height, int depth)
+{
+    UnRef();
+
+    wxCHECK_MSG( (width > 0) && (height > 0), false, wxT("invalid bitmap size") );
+
+    m_refData = new wxBitmapRefData(width, height, depth);
+
+    if ( depth == 1 )
     {
         // MGL does not support mono DCs, so we have to emulate them with
         // 8bpp ones. We do that by using a special palette with color 0
         // set to black and all other colors set to white.
-
-        M_BMPDATA->m_bitmap = MyMGL_createBitmap(width, height, 8, pf);
         SetMonoPalette(wxColour(255, 255, 255), wxColour(0, 0, 0));
     }
 
@@ -292,7 +320,7 @@ int wxBitmap::GetDepth() const
 
 wxMask *wxBitmap::GetMask() const
 {
-    wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
+    wxCHECK_MSG( Ok(), NULL, wxT("invalid bitmap") );
 
     return M_BMPDATA->m_mask;
 }
@@ -400,7 +428,7 @@ MGLDevCtx *wxBitmap::CreateTmpDC() const
 
 bool wxBitmap::LoadFile(const wxString &name, wxBitmapType type)
 {
-    UnRef();
+    AllocExclusive();
 
     if ( type == wxBITMAP_TYPE_BMP || type == wxBITMAP_TYPE_PNG ||
          type == wxBITMAP_TYPE_PCX || type == wxBITMAP_TYPE_JPEG )
@@ -430,8 +458,6 @@ bool wxBitmap::LoadFile(const wxString &name, wxBitmapType type)
         }
     }
 
-    m_refData = new wxBitmapRefData();
-
     return handler->LoadFile(this, name, type, -1, -1);
 }