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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
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 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
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#ifndef SD_TASKPANE_SLIDE_SORTER_CACHE_DISPLAY_HXX
#define SD_TASKPANE_SLIDE_SORTER_CACHE_DISPLAY_HXX

// Uncomment the define below to activate the slide sorter cache display in
// the task pane. Visible slide previews are displayed as large rectangles,
// off-screen previews as smaller rectangles. The color shows the state:
// green for no action, different shades of yellow for a request being in
// the queue, pink for currently being rendered. A diagonal line indicates
// that the preview is not up-to-date.
#ifdef DEBUG
//#define USE_SLIDE_SORTER_CACHE_DISPLAY
#endif


#ifdef USE_SLIDE_SORTER_CACHE_DISPLAY
#include <taskpane/TaskPaneTreeNode.hxx>

#include <map>
#include <vector>
#include <memory>

class Window;

#include "svx/svdpage.hxx"
#include "drawdoc.hxx"


namespace sd { namespace toolpanel {

class TreeNode;

/** This panel demonstrates how to create a panel for the task pane.
*/
class SlideSorterCacheDisplay
	: public TreeNode
{
public:
	SlideSorterCacheDisplay (const SdDrawDocument* pDocument);
	virtual ~SlideSorterCacheDisplay (void);

	void SetParentWindow (::Window* pParentWindow);

	virtual void Paint (const Rectangle& rBoundingBox);
	virtual void Resize (void);

	static SlideSorterCacheDisplay* Instance (const SdDrawDocument* pDocument);

	void SetPageCount (sal_Int32 nPageCount);
	enum PageStatus {
		NONE,
		IN_QUEUE_PRIORITY_0,
		IN_QUEUE_PRIORITY_1,
		IN_QUEUE_PRIORITY_2,
		RENDERING
	};
	void SetPageStatus (sal_Int32 nPageIndex, PageStatus eStatus);
	void SetPageVisibility (sal_Int32 nPageIndex, bool bVisible);
	void SetUpToDate (sal_Int32 nPageIndex, bool bUpToDate);

	virtual Size GetPreferredSize (void);
	virtual sal_Int32 GetPreferredWidth (sal_Int32 nHeigh);
	virtual sal_Int32 GetPreferredHeight (sal_Int32 nWidth);
	virtual ::Window* GetWindow (void);
	virtual bool IsResizable (void);
	virtual bool IsExpandable (void) const;
	virtual bool IsExpanded (void) const;

private:
	static ::std::map<const SdDrawDocument*, SlideSorterCacheDisplay*> maDisplays;
	static void AddInstance (const SdDrawDocument* pDocument, SlideSorterCacheDisplay* pControl);
	static void RemoveInstance (SlideSorterCacheDisplay* pControl);

	::Window* mpWindow;
	sal_Int32 mnPageCount;
	sal_Int32 mnColumnCount;
	sal_Int32 mnRowCount;
	Size maCellSize;
	sal_Int32 mnHorizontalBorder;
	sal_Int32 mnVerticalBorder;
	sal_Int32 mnHorizontalGap;
	sal_Int32 mnVerticalGap;

	class PageDescriptor
	{
	public:
		PageStatus meStatus;
		bool mbVisible;
		bool mbUpToDate;
	};
	typedef ::std::vector<PageDescriptor> PageDescriptorList;
	PageDescriptorList maPageDescriptors;

	Rectangle GetPageBox (sal_Int32 nPageIndex);

	void ProvideSize (sal_Int32 nPageIndex);

	void PaintPage (sal_Int32 nPageIndex);
};

} } // end of namespace ::sd::toolpanel

namespace {

void SscdSetStatus (const SdrPage* pPage,
	::sd::toolpanel::SlideSorterCacheDisplay::PageStatus eStatus)
{
	::sd::toolpanel::SlideSorterCacheDisplay* pDisplay
		= ::sd::toolpanel::SlideSorterCacheDisplay::Instance(
		dynamic_cast<SdDrawDocument*>(pPage->GetModel()));
	if (pDisplay != NULL)
		pDisplay->SetPageStatus((pPage->GetPageNum()-1)/2, eStatus);
}

void SscdSetRequestClass (const SdrPage* pPage, sal_Int32 nClass)
{
	sd::toolpanel::SlideSorterCacheDisplay::PageStatus eStatus;
	switch (nClass)
	{
		case 0:
			eStatus = ::sd::toolpanel::SlideSorterCacheDisplay::IN_QUEUE_PRIORITY_0; break;
		case 1:
			eStatus = ::sd::toolpanel::SlideSorterCacheDisplay::IN_QUEUE_PRIORITY_1; break;
		case 2:
			eStatus = ::sd::toolpanel::SlideSorterCacheDisplay::IN_QUEUE_PRIORITY_2; break;
		default:
			eStatus = ::sd::toolpanel::SlideSorterCacheDisplay::NONE; break;
	}
	SscdSetStatus(pPage,eStatus);
}

void SscdSetVisibility (const SdrModel* pModel, sal_Int32 nIndex, bool bVisible)
{
	::sd::toolpanel::SlideSorterCacheDisplay* pDisplay
		= ::sd::toolpanel::SlideSorterCacheDisplay::Instance(
		dynamic_cast<const SdDrawDocument*>(pModel));
	if (pDisplay != NULL)
		pDisplay->SetPageVisibility(nIndex, bVisible);
}



void SscdSetUpToDate (const SdrPage* pPage, bool bUpToDate)
{
	::sd::toolpanel::SlideSorterCacheDisplay* pDisplay
		= ::sd::toolpanel::SlideSorterCacheDisplay::Instance(
			dynamic_cast<const SdDrawDocument*>(pPage->GetModel()));
	if (pDisplay != NULL)
		pDisplay->SetUpToDate((pPage->GetPageNum()-1)/2, bUpToDate);
}



#define SSCD_SET_REQUEST_CLASS(Page,RequestClass) \
	SscdSetRequestClass(Page,RequestClass)
#define SSCD_SET_STATUS(RequestData,Status) \
	SscdSetStatus(RequestData,::sd::toolpanel::SlideSorterCacheDisplay::Status)
#define SSCD_SET_VISIBILITY(Model,Index,Visible) \
	SscdSetVisibility(Model,Index,Visible)
#define SSCD_SET_UPTODATE(Page,UpToDate) \
	SscdSetUpToDate(Page,UpToDate)


}

#else

#define SSCD_SET_REQUEST_CLASS(Page,RequestClass)
#define SSCD_SET_STATUS(RequestData,Status)
#define SSCD_SET_VISIBILITY(Model,Index,Visible)
#define SSCD_SET_UPTODATE(Page,UpToDate)

#endif

#endif