zdoom-macos-deps/deps/wxwidgets/include/wx-3.1/wx/withimages.h
2021-06-28 10:54:57 +03:00

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2.5 KiB
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///////////////////////////////////////////////////////////////////////////////
// Name: wx/withimages.h
// Purpose: Declaration of a simple wxWithImages class.
// Author: Vadim Zeitlin
// Created: 2011-08-17
// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_WITHIMAGES_H_
#define _WX_WITHIMAGES_H_
#include "wx/defs.h"
#include "wx/icon.h"
#include "wx/imaglist.h"
// ----------------------------------------------------------------------------
// wxWithImages: mix-in class providing access to wxImageList.
// ----------------------------------------------------------------------------
class WXDLLIMPEXP_CORE wxWithImages
{
public:
enum
{
NO_IMAGE = -1
};
wxWithImages()
{
m_imageList = NULL;
m_ownsImageList = false;
}
virtual ~wxWithImages()
{
FreeIfNeeded();
}
// Sets the image list to use, it is *not* deleted by the control.
virtual void SetImageList(wxImageList* imageList)
{
FreeIfNeeded();
m_imageList = imageList;
}
// As SetImageList() but we will delete the image list ourselves.
void AssignImageList(wxImageList* imageList)
{
SetImageList(imageList);
m_ownsImageList = true;
}
// Get pointer (may be NULL) to the associated image list.
wxImageList* GetImageList() const { return m_imageList; }
protected:
// Return true if we have a valid image list.
bool HasImageList() const { return m_imageList != NULL; }
// Return the image with the given index from the image list.
//
// If there is no image list or if index == NO_IMAGE, silently returns
// wxNullIcon.
wxIcon GetImage(int iconIndex) const
{
return m_imageList && iconIndex != NO_IMAGE
? m_imageList->GetIcon(iconIndex)
: wxNullIcon;
}
private:
// Free the image list if necessary, i.e. if we own it.
void FreeIfNeeded()
{
if ( m_ownsImageList )
{
delete m_imageList;
m_imageList = NULL;
// We don't own it any more.
m_ownsImageList = false;
}
}
// The associated image list or NULL.
wxImageList* m_imageList;
// False by default, if true then we delete m_imageList.
bool m_ownsImageList;
wxDECLARE_NO_COPY_CLASS(wxWithImages);
};
#endif // _WX_WITHIMAGES_H_