Пример #1
0
// 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;
}
Пример #2
0
// 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;
}
Пример #3
0
// 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;
}
Пример #4
0
// 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;
}
Пример #5
0
// 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;
}