Move POSIX implementation of wxThread::Create() to wxThreadInternal.

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

diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 10756fee7ca3cbb1e2bd3bb850efac72e281a58e..0cd514ffd12aae239bd07a92d5fe815643a984ab 100644 (file)
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -39,6 +39,7 @@
     #include "wx/image.h"
 #endif
 
     #include "wx/image.h"
 #endif
 

+#include "wx/scopedptr.h"

 #include "wx/msw/private.h"
 #include "wx/msw/dc.h"
 
 #include "wx/msw/private.h"
 #include "wx/msw/dc.h"
 


@@ -62,12 +63,14 @@
 class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
 {
 public:
 class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData
 {
 public:

-    wxBitmapRefData();
+    wxBitmapRefData() { Init(); }

     wxBitmapRefData(const wxBitmapRefData& data);
     virtual ~wxBitmapRefData() { Free(); }
 
     virtual void Free();
 
     wxBitmapRefData(const wxBitmapRefData& data);
     virtual ~wxBitmapRefData() { Free(); }
 
     virtual void Free();
 

+    void CopyFromDIB(const wxDIB& dib);
+

     // set the mask object to use as the mask, we take ownership of it
     void SetMask(wxMask *mask)
     {
     // set the mask object to use as the mask, we take ownership of it
     void SetMask(wxMask *mask)
     {


@@ -114,6 +117,8 @@ public:
     bool m_isDIB;
 
 private:
     bool m_isDIB;
 
 private:

+    void Init();
+

     // optional mask for transparent drawing
     wxMask       *m_bitmapMask;
 
     // optional mask for transparent drawing
     wxMask       *m_bitmapMask;
 


@@ -183,7 +188,7 @@ IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject)
 // wxBitmapRefData
 // ----------------------------------------------------------------------------
 
 // wxBitmapRefData
 // ----------------------------------------------------------------------------
 

-wxBitmapRefData::wxBitmapRefData()
+void wxBitmapRefData::Init()

 {
 #if wxDEBUG_LEVEL
     m_selectedInto = NULL;
 {
 #if wxDEBUG_LEVEL
     m_selectedInto = NULL;


@@ -202,23 +207,25 @@ wxBitmapRefData::wxBitmapRefData()
 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
                : wxGDIImageRefData(data)
 {
 wxBitmapRefData::wxBitmapRefData(const wxBitmapRefData& data)
                : wxGDIImageRefData(data)
 {

-#if wxDEBUG_LEVEL
-    m_selectedInto = NULL;
-#endif
+    Init();

 
     // (deep) copy the mask if present
 
     // (deep) copy the mask if present

-    m_bitmapMask = NULL;

     if (data.m_bitmapMask)
         m_bitmapMask = new wxMask(*data.m_bitmapMask);
 
     if (data.m_bitmapMask)
         m_bitmapMask = new wxMask(*data.m_bitmapMask);
 

-    // FIXME: we don't copy m_hBitmap currently but we should, see wxBitmap::
-    //        CloneGDIRefData()
-
-    wxASSERT_MSG( !data.m_isDIB,
+    wxASSERT_MSG( !data.m_dib,

                     wxT("can't copy bitmap locked for raw access!") );
                     wxT("can't copy bitmap locked for raw access!") );

-    m_isDIB = false;

 
     m_hasAlpha = data.m_hasAlpha;
 
     m_hasAlpha = data.m_hasAlpha;

+
+#if wxUSE_WXDIB
+    // copy the other bitmap
+    if ( data.m_hBitmap )
+    {
+        wxDIB dib((HBITMAP)(data.m_hBitmap));
+        CopyFromDIB(dib);
+    }
+#endif // wxUSE_WXDIB

 }
 
 void wxBitmapRefData::Free()
 }
 
 void wxBitmapRefData::Free()


@@ -241,6 +248,35 @@ void wxBitmapRefData::Free()
     wxDELETE(m_bitmapMask);
 }
 
     wxDELETE(m_bitmapMask);
 }
 

+void wxBitmapRefData::CopyFromDIB(const wxDIB& dib)
+{
+    wxCHECK_RET( !IsOk(), "bitmap already initialized" );
+    wxCHECK_RET( dib.IsOk(), wxT("invalid DIB in CopyFromDIB") );
+
+#ifdef SOMETIMES_USE_DIB
+    HBITMAP hbitmap = dib.CreateDDB();
+    if ( !hbitmap )
+        return;
+    m_isDIB = false;
+#else // ALWAYS_USE_DIB
+    HBITMAP hbitmap = const_cast<wxDIB &>(dib).Detach();
+    m_isDIB = true;
+#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB
+
+    m_width = dib.GetWidth();
+    m_height = dib.GetHeight();
+    m_depth = dib.GetDepth();
+
+    m_hBitmap = (WXHBITMAP)hbitmap;
+
+#if wxUSE_PALETTE
+    wxPalette *palette = dib.CreatePalette();
+    if ( palette )
+        m_bitmapPalette = *palette;
+    delete palette;
+#endif // wxUSE_PALETTE
+}
+

 // ----------------------------------------------------------------------------
 // wxBitmap creation
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxBitmap creation
 // ----------------------------------------------------------------------------


@@ -250,46 +286,9 @@ wxGDIImageRefData *wxBitmap::CreateData() const
     return new wxBitmapRefData;
 }
 
     return new wxBitmapRefData;
 }
 

-wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *dataOrig) const
+wxGDIRefData *wxBitmap::CloneGDIRefData(const wxGDIRefData *data) const

 {
 {

-    const wxBitmapRefData *
-        data = static_cast<const wxBitmapRefData *>(dataOrig);
-    if ( !data )
-        return NULL;
-
-    // FIXME: this method is backwards, it should just create a new
-    //        wxBitmapRefData using its copy ctor but instead it modifies this
-    //        bitmap itself and then returns its m_refData -- which works, of
-    //        course (except in !wxUSE_WXDIB), but is completely illogical
-    wxBitmap *self = const_cast<wxBitmap *>(this);
-
-    wxBitmapRefData *selfdata;
-#if wxUSE_WXDIB
-    // copy the other bitmap
-    if ( data->m_hBitmap )
-    {
-        wxDIB dib((HBITMAP)(data->m_hBitmap));
-        self->CopyFromDIB(dib);
-
-        selfdata = static_cast<wxBitmapRefData *>(m_refData);
-        selfdata->m_hasAlpha = data->m_hasAlpha;
-    }
-    else
-#endif // wxUSE_WXDIB
-    {
-        // copy the bitmap data
-        selfdata = new wxBitmapRefData(*data);
-        self->m_refData = selfdata;
-    }
-
-    // copy also the mask
-    wxMask * const maskSrc = data->GetMask();
-    if ( maskSrc )
-    {
-        selfdata->SetMask(new wxMask(*maskSrc));
-    }
-
-    return selfdata;
+    return new wxBitmapRefData(*static_cast<const wxBitmapRefData *>(data));

 }
 
 bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
 }
 
 bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,


@@ -342,8 +341,9 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
                     wxDIB dib(iconInfo.hbmColor);
                     if (dib.IsOk())
                     {
                     wxDIB dib(iconInfo.hbmColor);
                     if (dib.IsOk())
                     {

-                        const unsigned char* pixels = dib.GetData();
-                        for (int idx = 0; idx < w*h*4; idx+=4)
+                        unsigned char* const pixels = dib.GetData();
+                        int idx;
+                        for ( idx = 0; idx < w*h*4; idx += 4 )

                         {
                             if (pixels[idx+3] != 0)
                             {
                         {
                             if (pixels[idx+3] != 0)
                             {


@@ -353,6 +353,25 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon,
                                 break;
                             }
                         }
                                 break;
                             }
                         }

+
+                        if ( refData->m_hasAlpha )
+                        {
+                            // If we do have alpha, ensure we use premultiplied
+                            // data for our pixels as this is what the bitmaps
+                            // created in other ways do and this is necessary
+                            // for e.g. AlphaBlend() to work with this bitmap.
+                            for ( idx = 0; idx < w*h*4; idx += 4 )
+                            {
+                                const unsigned char a = pixels[idx+3];
+
+                                pixels[idx]   = ((pixels[idx]  *a) + 127)/255;
+                                pixels[idx+1] = ((pixels[idx+1]*a) + 127)/255;
+                                pixels[idx+2] = ((pixels[idx+2]*a) + 127)/255;
+                            }
+
+                            ::DeleteObject(refData->m_hBitmap);
+                            refData->m_hBitmap = dib.Detach();
+                        }

                     }
                 }
             }
                     }
                 }
             }


@@ -407,37 +426,13 @@ bool wxBitmap::CopyFromIcon(const wxIcon& icon, wxBitmapTransparency transp)
 
 bool wxBitmap::CopyFromDIB(const wxDIB& dib)
 {
 
 bool wxBitmap::CopyFromDIB(const wxDIB& dib)
 {

-    wxCHECK_MSG( dib.IsOk(), false, wxT("invalid DIB in CopyFromDIB") );
-
-#ifdef SOMETIMES_USE_DIB
-    HBITMAP hbitmap = dib.CreateDDB();
-    if ( !hbitmap )
+    wxScopedPtr<wxBitmapRefData> newData(new wxBitmapRefData);
+    newData->CopyFromDIB(dib);
+    if ( !newData->IsOk() )

         return false;
         return false;

-#else // ALWAYS_USE_DIB
-    HBITMAP hbitmap = const_cast<wxDIB &>(dib).Detach();
-#endif // SOMETIMES_USE_DIB/ALWAYS_USE_DIB

 
     UnRef();
 
     UnRef();

-
-    wxBitmapRefData *refData = new wxBitmapRefData;
-    m_refData = refData;
-
-    refData->m_width = dib.GetWidth();
-    refData->m_height = dib.GetHeight();
-    refData->m_depth = dib.GetDepth();
-
-    refData->m_hBitmap = (WXHBITMAP)hbitmap;
-
-#if wxUSE_PALETTE
-    wxPalette *palette = dib.CreatePalette();
-    if ( palette )
-    {
-        refData->m_bitmapPalette = *palette;
-    }
-
-    delete palette;
-#endif // wxUSE_PALETTE
-
+    m_refData = newData.release();

     return true;
 }
 
     return true;
 }
 


@@ -1178,15 +1173,6 @@ wxMask *wxBitmap::GetMask() const
     return GetBitmapData() ? GetBitmapData()->GetMask() : NULL;
 }
 
     return GetBitmapData() ? GetBitmapData()->GetMask() : NULL;
 }
 

-wxBitmap wxBitmap::GetMaskBitmap() const
-{
-    wxBitmap bmp;
-    wxMask *mask = GetMask();
-    if ( mask )
-        bmp.SetHBITMAP(mask->GetMaskBitmap());
-    return bmp;
-}
-

 wxDC *wxBitmap::GetSelectedInto() const
 {
 #if wxDEBUG_LEVEL
 wxDC *wxBitmap::GetSelectedInto() const
 {
 #if wxDEBUG_LEVEL


@@ -1554,6 +1540,13 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 #endif // __WXMICROWIN__/!__WXMICROWIN__
 }
 
 #endif // __WXMICROWIN__/!__WXMICROWIN__
 }
 

+wxBitmap wxMask::GetBitmap() const
+{
+    wxBitmap bmp;
+    bmp.SetHBITMAP(m_maskBitmap);
+    return bmp;
+}
+

 // ----------------------------------------------------------------------------
 // wxBitmapHandler
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxBitmapHandler
 // ----------------------------------------------------------------------------