office-gobmx/sd/source/ui/presenter/CanvasUpdateRequester.hxx

80 lines
2.8 KiB
C++

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#ifndef SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
#define SD_PRESENTER_CANVAS_UPDATE_REQUESTER_HEADER
#include "precompiled_sd.hxx"
#include <com/sun/star/rendering/XSpriteCanvas.hpp>
#include <boost/noncopyable.hpp>
#include <boost/shared_ptr.hpp>
#include <sal/types.h>
#include <tools/solar.h>
#include <tools/link.hxx>
#include <vector>
namespace css = ::com::sun::star;
namespace sd { namespace presenter {
/** Each UpdateRequester handles update requests (calls to
XCanvas::updateScreen()) for one shared canvas (a canvas that has one or
more PresenterCanvas wrappers). Multiple calls are collected and lead
to a single call to updateScreen.
*/
class CanvasUpdateRequester : private ::boost::noncopyable
{
public:
/** Return the Canvas UpdateRequester object for the given shared
canvas. A new object is created when it does not already exist.
*/
static ::boost::shared_ptr<CanvasUpdateRequester> Instance (
const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
void RequestUpdate (const sal_Bool bUpdateAll);
private:
CanvasUpdateRequester (const css::uno::Reference<css::rendering::XSpriteCanvas>& rxCanvas);
~CanvasUpdateRequester (void);
class Deleter; friend class Deleter;
typedef ::std::vector<
::std::pair<
css::uno::Reference<css::rendering::XSpriteCanvas>,
::boost::shared_ptr<CanvasUpdateRequester> > > RequesterMap;
static RequesterMap maRequesterMap;
css::uno::Reference<css::rendering::XSpriteCanvas> mxCanvas;
ULONG mnUserEventId;
sal_Bool mbUpdateFlag;
DECL_LINK(Callback, void*);
};
} } // end of namespace ::sd::presenter
#endif