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Add helper wxWithImages::GetBitmapBundle()

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This function can be used in the ports that don't require wxImageList
(i.e. anything but wxMSW) to use wxBitmapBundle if it's available,
rather than passing by wxImageList.
This commit is contained in:
Vadim Zeitlin 2021-11-07 23:39:59 +01:00
parent 0588bc8820
commit f1da96db27
1 changed files with 36 additions and 0 deletions
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36
include/wx/withimages.h
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@ -154,6 +154,42 @@ protected:
: wxNullIcon;
}
// Return the bitmap bundle for the image with the given index.
//
// If index == NO_IMAGE or there are no images at all, returns an empty
// bundle (but, unlike GetImage() above, asserts if the index is valid but
// there is no image, as this probably indicates a programming mistake).
//
// If there is no bundle, but there is an image list, returns a bundle
// containing just the bitmap from the image list.
wxBitmapBundle GetBitmapBundle(int iconIndex) const
{
wxBitmapBundle bundle;
if ( iconIndex != NO_IMAGE )
{
if ( !m_images.empty() )
{
bundle = m_images.at(iconIndex);
}
else if ( m_imageList )
{
bundle = m_imageList->GetIcon(iconIndex);
}
else
{
wxFAIL_MSG
(
"Image index specified, but there are no images.\n"
"\n"
"Did you forget to call SetImages()?"
);
}
}
return bundle;
}
private:
// Free the image list if necessary, i.e. if we own it.
void FreeIfNeeded()