// Adds a bitmap, and optionally a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
{
HBITMAP hbmp;
#if wxUSE_WXDIB && wxUSE_IMAGE
// wxBitmap normally stores alpha in pre-multiplied format but
// ImageList_Draw() does pre-multiplication internally so we need to undo
// the pre-multiplication here. Converting back and forth like this is, of
// course, very inefficient but it's better than wrong appearance so we do
// this for now until a better way can be found.
AutoHBITMAP hbmpRelease;
if ( bitmap.HasAlpha() )
{
hbmp = wxDIB(bitmap.ConvertToImage(),
wxDIB::PixelFormat_NotPreMultiplied).Detach();
hbmpRelease.Init(hbmp);
}
else
#endif // wxUSE_WXDIB && wxUSE_IMAGE
hbmp = GetHbitmapOf(bitmap);
// Use mask only if we don't have alpha, the bitmap isn't drawn correctly
// if we use both.
AutoHBITMAP hbmpMask;
if ( !bitmap.HasAlpha() )
hbmpMask.Init(GetMaskForImage(bitmap, mask));
int index = ImageList_Add(GetHImageList(), hbmp, hbmpMask);
if ( index == -1 )
{
wxLogError(_("Couldn't add an image to the image list."));
}
return index;
}
// Adds a bitmap, and optionally a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
{
HBITMAP hbmp;
bool useMask;
#if wxUSE_WXDIB && wxUSE_IMAGE
// wxBitmap normally stores alpha in pre-multiplied format but
// ImageList_Draw() does pre-multiplication internally so we need to undo
// the pre-multiplication here. Converting back and forth like this is, of
// course, very inefficient but it's better than wrong appearance so we do
// this for now until a better way can be found.
AutoHBITMAP hbmpRelease;
if ( bitmap.HasAlpha() )
{
wxImage img = bitmap.ConvertToImage();
// For comctl32.dll < 6 remove alpha channel from image
// to prevent possible interferences with the mask.
if ( wxApp::GetComCtl32Version() < 600 )
{
img.ClearAlpha();
useMask = true;
}
else
{
useMask = false;
}
hbmp = wxDIB(img, wxDIB::PixelFormat_NotPreMultiplied).Detach();
hbmpRelease.Init(hbmp);
}
else
#endif // wxUSE_WXDIB && wxUSE_IMAGE
{
hbmp = GetHbitmapOf(bitmap);
useMask = true;
}
// Use mask only if we don't have alpha, the bitmap isn't drawn correctly
// if we use both.
AutoHBITMAP hbmpMask;
if ( useMask )
hbmpMask.Init(GetMaskForImage(bitmap, mask));
int index = ImageList_Add(GetHImageList(), hbmp, hbmpMask);
if ( index == -1 )
{
wxLogError(_("Couldn't add an image to the image list."));
}
return index;
}
// Replaces a bitmap, optionally passing a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
bool wxImageList::Replace(int index,
const wxBitmap& bitmap,
const wxBitmap& mask)
{
HBITMAP hbmp;
#if wxUSE_WXDIB && wxUSE_IMAGE
// See the comment in Add() above.
AutoHBITMAP hbmpRelease;
if ( bitmap.HasAlpha() )
{
hbmp = wxDIB(bitmap.ConvertToImage(),
wxDIB::PixelFormat_NotPreMultiplied).Detach();
hbmpRelease.Init(hbmp);
}
else
#endif // wxUSE_WXDIB && wxUSE_IMAGE
hbmp = GetHbitmapOf(bitmap);
AutoHBITMAP hbmpMask(GetMaskForImage(bitmap, mask));
if ( !ImageList_Replace(GetHImageList(), index, hbmp, hbmpMask) )
{
wxLogLastError(wxT("ImageList_Replace()"));
return false;
}
return true;
}
// Adds a bitmap, using the specified colour to create the mask bitmap
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap'.
int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
{
HBITMAP hbmp;
#if wxUSE_WXDIB && wxUSE_IMAGE
// See the comment in overloaded Add() above.
AutoHBITMAP hbmpRelease;
if ( bitmap.HasAlpha() )
{
hbmp = wxDIB(bitmap.ConvertToImage(),
wxDIB::PixelFormat_NotPreMultiplied).Detach();
hbmpRelease.Init(hbmp);
}
else
#endif // wxUSE_WXDIB && wxUSE_IMAGE
hbmp = GetHbitmapOf(bitmap);
int index = ImageList_AddMasked(GetHImageList(),
hbmp,
wxColourToRGB(maskColour));
if ( index == -1 )
{
wxLogError(_("Couldn't add an image to the image list."));
}
return index;
}
// Replaces a bitmap, optionally passing a mask bitmap.
// Note that wxImageList creates new bitmaps, so you may delete
// 'bitmap' and 'mask'.
bool wxImageList::Replace(int index,
const wxBitmap& bitmap,
const wxBitmap& mask)
{
HBITMAP hbmp;
bool useMask;
#if wxUSE_WXDIB && wxUSE_IMAGE
// See the comment in Add() above.
AutoHBITMAP hbmpRelease;
if ( bitmap.HasAlpha() )
{
wxImage img = bitmap.ConvertToImage();
if ( wxApp::GetComCtl32Version() < 600 )
{
img.ClearAlpha();
useMask = true;
}
else
{
useMask = false;
}
hbmp = wxDIB(img, wxDIB::PixelFormat_NotPreMultiplied).Detach();
hbmpRelease.Init(hbmp);
}
else
#endif // wxUSE_WXDIB && wxUSE_IMAGE
{
hbmp = GetHbitmapOf(bitmap);
useMask = true;
}
AutoHBITMAP hbmpMask;
if ( useMask )
hbmpMask.Init(GetMaskForImage(bitmap, mask));
if ( !ImageList_Replace(GetHImageList(), index, hbmp, hbmpMask) )
{
wxLogLastError(wxT("ImageList_Replace()"));
return false;
}
return true;
}