setting clipping correctly

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

diff --git a/src/msw/bitmap.cpp b/src/msw/bitmap.cpp
index 015c8309bd345093a29e6fff305f439a761816d0..45857264281fdb67e1b1b7e793db78c2bc70f65e 100644 (file)
--- a/src/msw/bitmap.cpp
+++ b/src/msw/bitmap.cpp
@@ -1,5 +1,5 @@
 ////////////////////////////////////////////////////////////////////////////
 ////////////////////////////////////////////////////////////////////////////

-// Name:        bitmap.cpp
+// Name:        src/msw/bitmap.cpp

 // Purpose:     wxBitmap
 // Author:      Julian Smart
 // Modified by:
 // Purpose:     wxBitmap
 // Author:      Julian Smart
 // Modified by:


@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
 // headers
 // ----------------------------------------------------------------------------
 

-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-    #pragma implementation "bitmap.h"
-#endif
-

 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 


@@ -28,6 +24,8 @@
     #pragma hdrstop
 #endif
 
     #pragma hdrstop
 #endif
 

+#include "wx/bitmap.h"
+

 #ifndef WX_PRECOMP
     #include <stdio.h>
 
 #ifndef WX_PRECOMP
     #include <stdio.h>
 


@@ -36,22 +34,21 @@
     #include "wx/app.h"
     #include "wx/palette.h"
     #include "wx/dcmemory.h"
     #include "wx/app.h"
     #include "wx/palette.h"
     #include "wx/dcmemory.h"

-    #include "wx/bitmap.h"

     #include "wx/icon.h"
     #include "wx/icon.h"

+    #include "wx/log.h"
+    #include "wx/image.h"

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

-#include "wx/log.h"

 
 #if wxUSE_WXDIB
 
 #if wxUSE_WXDIB

-#include "wx/msw/dib.h"
+    #include "wx/msw/dib.h"

 #endif
 
 #endif
 

-#include "wx/image.h"

 #include "wx/xpmdecod.h"
 
 #ifdef wxHAVE_RAW_BITMAP
 #include "wx/xpmdecod.h"
 
 #ifdef wxHAVE_RAW_BITMAP

-#include "wx/rawbmp.h"
+    #include "wx/rawbmp.h"

 #endif
 
 // missing from mingw32 header
 #endif
 
 // missing from mingw32 header


@@ -245,12 +242,6 @@ void wxBitmapRefData::Free()
 // wxBitmap creation
 // ----------------------------------------------------------------------------
 
 // wxBitmap creation
 // ----------------------------------------------------------------------------
 

-// this function should be called from all wxBitmap ctors
-void wxBitmap::Init()
-{
-    // m_refData = NULL; done in the base class ctor
-}
-

 wxGDIImageRefData *wxBitmap::CreateData() const
 {
     return new wxBitmapRefData;
 wxGDIImageRefData *wxBitmap::CreateData() const
 {
     return new wxBitmapRefData;


@@ -324,7 +315,7 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon)
             unsigned char* pixels = dib.GetData();
             for (int idx=0; idx<w*h*4; idx+=4)
             {
             unsigned char* pixels = dib.GetData();
             for (int idx=0; idx<w*h*4; idx+=4)
             {

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

                 {
                     // If there is an alpha byte that is non-zero then set the
                     // alpha flag and bail out of the loop.
                 {
                     // If there is an alpha byte that is non-zero then set the
                     // alpha flag and bail out of the loop.


@@ -337,11 +328,11 @@ bool wxBitmap::CopyFromIconOrCursor(const wxGDIImage& icon)
 #endif
     if ( !refData->m_hasAlpha )
     {
 #endif
     if ( !refData->m_hasAlpha )
     {

-        // the mask returned by GetIconInfo() is inversed compared to the usual
+        // the mask returned by GetIconInfo() is inverted compared to the usual

         // wxWin convention
         refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
     }
         // wxWin convention
         refData->SetMask(wxInvertMask(iconInfo.hbmMask, w, h));
     }

-    
+

     // delete the old one now as we don't need it any more
     ::DeleteObject(iconInfo.hbmMask);
 
     // delete the old one now as we don't need it any more
     ::DeleteObject(iconInfo.hbmMask);
 


@@ -420,8 +411,6 @@ wxBitmap::~wxBitmap()
 
 wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 {
 
 wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 {

-    Init();
-

 #ifndef __WXMICROWIN__
     wxBitmapRefData *refData = new wxBitmapRefData;
     m_refData = refData;
 #ifndef __WXMICROWIN__
     wxBitmapRefData *refData = new wxBitmapRefData;
     m_refData = refData;


@@ -435,7 +424,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
     {
         // we assume that it is in XBM format which is not quite the same as
         // the format CreateBitmap() wants because the order of bytes in the
     {
         // we assume that it is in XBM format which is not quite the same as
         // the format CreateBitmap() wants because the order of bytes in the

-        // line is inversed!
+        // line is reversed!

         const size_t bytesPerLine = (width + 7) / 8;
         const size_t padding = bytesPerLine % 2;
         const size_t len = height * ( padding + bytesPerLine );
         const size_t bytesPerLine = (width + 7) / 8;
         const size_t padding = bytesPerLine % 2;
         const size_t len = height * ( padding + bytesPerLine );


@@ -456,7 +445,7 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
                     reversed |= (unsigned char)(val & 0x01);
                     val >>= 1;
                 }
                     reversed |= (unsigned char)(val & 0x01);
                     val >>= 1;
                 }

-                *dst++ = reversed;
+                *dst++ = ~reversed;

             }
 
             if ( padding )
             }
 
             if ( padding )


@@ -484,51 +473,23 @@ wxBitmap::wxBitmap(const char bits[], int width, int height, int depth)
 #endif
 }
 
 #endif
 }
 

-// Create from XPM data
-bool wxBitmap::CreateFromXpm(const char **data)
-{
-#if wxUSE_IMAGE && wxUSE_XPM
-    Init();
-
-    wxCHECK_MSG( data != NULL, false, wxT("invalid bitmap data") )
-
-    wxXPMDecoder decoder;
-    wxImage img = decoder.ReadData(data);
-    wxCHECK_MSG( img.Ok(), false, wxT("invalid bitmap data") )
-
-    *this = wxBitmap(img);
-    return true;
-#else
-    wxUnusedVar(data);
-    return false;
-#endif
-}
-

 wxBitmap::wxBitmap(int w, int h, int d)
 {
 wxBitmap::wxBitmap(int w, int h, int d)
 {

-    Init();
-

     (void)Create(w, h, d);
 }
 
 wxBitmap::wxBitmap(int w, int h, const wxDC& dc)
 {
     (void)Create(w, h, d);
 }
 
 wxBitmap::wxBitmap(int w, int h, const wxDC& dc)
 {

-    Init();
-

     (void)Create(w, h, dc);
 }
 
     (void)Create(w, h, dc);
 }
 

-wxBitmap::wxBitmap(void *data, long type, int width, int height, int depth)
+wxBitmap::wxBitmap(const void* data, long type, int width, int height, int depth)

 {
 {

-    Init();
-

     (void)Create(data, type, width, height, depth);
 }
 
 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 {
     (void)Create(data, type, width, height, depth);
 }
 
 wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type)
 {

-    Init();
-

     LoadFile(filename, (int)type);
 }
 
     LoadFile(filename, (int)type);
 }
 


@@ -802,8 +763,6 @@ wxImage wxBitmap::ConvertToImage() const
 // wxImage to/from conversions
 // ----------------------------------------------------------------------------
 
 // wxImage to/from conversions
 // ----------------------------------------------------------------------------
 

-#if wxUSE_WXDIB
-

 bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
 {
     return CreateFromImage(image, depth, 0);
 bool wxBitmap::CreateFromImage(const wxImage& image, int depth)
 {
     return CreateFromImage(image, depth, 0);


@@ -817,6 +776,8 @@ bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc)
     return CreateFromImage(image, -1, dc.GetHDC());
 }
 
     return CreateFromImage(image, -1, dc.GetHDC());
 }
 

+#if wxUSE_WXDIB
+

 bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
 {
     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );
 bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
 {
     wxCHECK_MSG( image.Ok(), false, wxT("invalid image") );


@@ -831,6 +792,8 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
     if ( !dib.IsOk() )
         return false;
 
     if ( !dib.IsOk() )
         return false;
 

+    if ( depth == -1 )
+        depth = dib.GetDepth(); // Get depth from image if none specified

 
     // store the bitmap parameters
     wxBitmapRefData *refData = new wxBitmapRefData;
 
     // store the bitmap parameters
     wxBitmapRefData *refData = new wxBitmapRefData;


@@ -853,14 +816,14 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
         hbitmap = dib.Detach();
 
         refData->m_isDIB = true;
         hbitmap = dib.Detach();
 
         refData->m_isDIB = true;

-        refData->m_depth = dib.GetDepth();
+        refData->m_depth = depth;

     }
 #ifndef ALWAYS_USE_DIB
     else // we need to convert DIB to DDB
     {
         hbitmap = dib.CreateDDB((HDC)hdc);
 
     }
 #ifndef ALWAYS_USE_DIB
     else // we need to convert DIB to DDB
     {
         hbitmap = dib.CreateDDB((HDC)hdc);
 

-        refData->m_depth = depth == -1 ? dib.GetDepth() : depth;
+        refData->m_depth = depth;

     }
 #endif // !ALWAYS_USE_DIB
 
     }
 #endif // !ALWAYS_USE_DIB
 


@@ -905,7 +868,7 @@ bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc)
             SetMask(new wxMask((WXHBITMAP)hbitmap));
         }
 
             SetMask(new wxMask((WXHBITMAP)hbitmap));
         }
 

-        delete data;
+        delete[] data;

     }
 
     return true;
     }
 
     return true;


@@ -994,7 +957,22 @@ wxImage wxBitmap::ConvertToImage() const
     return image;
 }
 
     return image;
 }
 

-#endif // wxUSE_WXDIB
+#else // !wxUSE_WXDIB
+
+bool
+wxBitmap::CreateFromImage(const wxImage& WXUNUSED(image),
+                          int WXUNUSED(depth),
+                          WXHDC WXUNUSED(hdc))
+{
+    return false;
+}
+
+wxImage wxBitmap::ConvertToImage() const
+{
+    return wxImage();
+}
+
+#endif // wxUSE_WXDIB/!wxUSE_WXDIB

 
 #endif // wxUSE_IMAGE
 
 
 #endif // wxUSE_IMAGE
 


@@ -1014,7 +992,7 @@ bool wxBitmap::LoadFile(const wxString& filename, long type)
 
         return handler->LoadFile(this, filename, type, -1, -1);
     }
 
         return handler->LoadFile(this, filename, type, -1, -1);
     }

-#if wxUSE_IMAGE
+#if wxUSE_IMAGE && wxUSE_WXDIB

     else // no bitmap handler found
     {
         wxImage image;
     else // no bitmap handler found
     {
         wxImage image;


@@ -1030,7 +1008,7 @@ bool wxBitmap::LoadFile(const wxString& filename, long type)
     return false;
 }
 
     return false;
 }
 

-bool wxBitmap::Create(void *data, long type, int width, int height, int depth)
+bool wxBitmap::Create(const void* data, long type, int width, int height, int depth)

 {
     UnRef();
 
 {
     UnRef();
 


@@ -1058,7 +1036,7 @@ bool wxBitmap::SaveFile(const wxString& filename,
     {
         return handler->SaveFile(this, filename, type, palette);
     }
     {
         return handler->SaveFile(this, filename, type, palette);
     }

-#if wxUSE_IMAGE
+#if wxUSE_IMAGE && wxUSE_WXDIB

     else // no bitmap handler found
     {
         // FIXME what about palette? shouldn't we use it?
     else // no bitmap handler found
     {
         // FIXME what about palette? shouldn't we use it?


@@ -1091,7 +1069,7 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
 #ifndef __WXMICROWIN__
     // handle alpha channel, if any
     if (HasAlpha())
 #ifndef __WXMICROWIN__
     // handle alpha channel, if any
     if (HasAlpha())

-    ret.UseAlpha();
+        ret.UseAlpha();

 
     // copy bitmap data
     MemoryHDC dcSrc,
 
     // copy bitmap data
     MemoryHDC dcSrc,


@@ -1250,7 +1228,7 @@ void *wxBitmap::GetRawData(wxPixelDataBase& data, int bpp)
     HBITMAP hDIB;
     if ( !GetBitmapData()->m_isDIB )
     {
     HBITMAP hDIB;
     if ( !GetBitmapData()->m_isDIB )
     {

-        wxCHECK_MSG( !GetBitmapData()->m_dib, FALSE,
+        wxCHECK_MSG( !GetBitmapData()->m_dib, NULL,

                         _T("GetRawData() may be called only once") );
 
         wxDIB *dib = new wxDIB(*this);
                         _T("GetRawData() may be called only once") );
 
         wxDIB *dib = new wxDIB(*this);


@@ -1516,13 +1494,13 @@ bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour)
 // ----------------------------------------------------------------------------
 
 bool wxBitmapHandler::Create(wxGDIImage *image,
 // ----------------------------------------------------------------------------
 
 bool wxBitmapHandler::Create(wxGDIImage *image,

-                             void *data,
+                             const void* data,

                              long flags,
                              int width, int height, int depth)
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 
                              long flags,
                              int width, int height, int depth)
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 

-    return bitmap ? Create(bitmap, data, flags, width, height, depth) : false;
+    return bitmap && Create(bitmap, data, flags, width, height, depth);

 }
 
 bool wxBitmapHandler::Load(wxGDIImage *image,
 }
 
 bool wxBitmapHandler::Load(wxGDIImage *image,


@@ -1532,7 +1510,7 @@ bool wxBitmapHandler::Load(wxGDIImage *image,
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 

-    return bitmap ? LoadFile(bitmap, name, flags, width, height) : false;
+    return bitmap && LoadFile(bitmap, name, flags, width, height);

 }
 
 bool wxBitmapHandler::Save(wxGDIImage *image,
 }
 
 bool wxBitmapHandler::Save(wxGDIImage *image,


@@ -1541,11 +1519,11 @@ bool wxBitmapHandler::Save(wxGDIImage *image,
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 
 {
     wxBitmap *bitmap = wxDynamicCast(image, wxBitmap);
 

-    return bitmap ? SaveFile(bitmap, name, type) : false;
+    return bitmap && SaveFile(bitmap, name, type);

 }
 
 bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap),
 }
 
 bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap),

-                             void *WXUNUSED(data),
+                             const void* WXUNUSED(data),

                              long WXUNUSED(type),
                              int WXUNUSED(width),
                              int WXUNUSED(height),
                              long WXUNUSED(type),
                              int WXUNUSED(width),
                              int WXUNUSED(height),


@@ -1599,7 +1577,7 @@ bool wxCreateDIB(long xSize, long ySize, long bitsPerPixel,
    // this value must be 1, 4, 8 or 24 so PixelDepth can only be
    lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel);
    lpDIBheader->bmiHeader.biCompression = BI_RGB;
    // this value must be 1, 4, 8 or 24 so PixelDepth can only be
    lpDIBheader->bmiHeader.biBitCount = (WORD)(bitsPerPixel);
    lpDIBheader->bmiHeader.biCompression = BI_RGB;

-   lpDIBheader->bmiHeader.biSizeImage = xSize * abs(ySize) * bitsPerPixel >> 3;
+   lpDIBheader->bmiHeader.biSizeImage = (xSize * abs(ySize) * bitsPerPixel) >> 3;

    lpDIBheader->bmiHeader.biClrUsed = 256;
 
 
    lpDIBheader->bmiHeader.biClrUsed = 256;
 
 


@@ -1639,7 +1617,33 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
         return 0;
     }
 
         return 0;
     }
 

-    wxMask *mask = bmp.GetMask();
+    if ( bmp.HasAlpha() )
+    {
+        // Create an empty mask bitmap.
+        // it doesn't seem to work if we mess with the mask at all.
+        HBITMAP hMonoBitmap = CreateBitmap(bmp.GetWidth(),bmp.GetHeight(),1,1,NULL);
+
+        ICONINFO iconInfo;
+        wxZeroMemory(iconInfo);
+        iconInfo.fIcon = iconWanted;  // do we want an icon or a cursor?
+        if ( !iconWanted )
+        {
+            iconInfo.xHotspot = hotSpotX;
+            iconInfo.yHotspot = hotSpotY;
+        }
+
+        iconInfo.hbmMask = hMonoBitmap;
+        iconInfo.hbmColor = GetHbitmapOf(bmp);
+
+        HICON hicon = ::CreateIconIndirect(&iconInfo);
+
+        ::DeleteObject(hMonoBitmap);
+
+        return hicon;
+    }
+
+    wxMask* mask = bmp.GetMask();
+

     if ( !mask )
     {
         // we must have a mask for an icon, so even if it's probably incorrect,
     if ( !mask )
     {
         // we must have a mask for an icon, so even if it's probably incorrect,


@@ -1676,7 +1680,7 @@ HICON wxBitmapToIconOrCursor(const wxBitmap& bmp,
 
     HICON hicon = ::CreateIconIndirect(&iconInfo);
 
 
     HICON hicon = ::CreateIconIndirect(&iconInfo);
 

-    if ( !bmp.GetMask() )
+    if ( !bmp.GetMask() && !bmp.HasAlpha() )

     {
         // we created the mask, now delete it
         delete mask;
     {
         // we created the mask, now delete it
         delete mask;