#include <nntp/thmbpage.hpp>
#include <common/guiwnd.hpp>

bool ThumbPage::insert(const String &strPathFileName,PureDevice &pureDevice)
{
  mThumbNails.insert(&SmartPointer<ThumbNail>());
	SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[mThumbNails.size()-1];
	ptrThumbNail=::new ThumbNail();
	ptrThumbNail.disposition(PointerDisposition::Delete);
	if(!ptrThumbNail->setImage(strPathFileName,pureDevice)){mThumbNails.remove(mThumbNails.size()-1);return false;}
	isDirty(true);
	return true;
}

bool ThumbPage::insert(PakEntry &pakEntry,PureDevice &pureDevice)
{
  mThumbNails.insert(&SmartPointer<ThumbNail>());
	SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[mThumbNails.size()-1];
	ptrThumbNail=::new ThumbNail;
	ptrThumbNail.disposition(PointerDisposition::Delete);
	if(!ptrThumbNail->setImage(pakEntry)){mThumbNails.remove(mThumbNails.size()-1);return false;}
	isDirty(true);
	return true;
}

bool ThumbPage::insert(const String &strPathFileName)
{
  mThumbNails.insert(&SmartPointer<ThumbNail>());
	SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[mThumbNails.size()-1];
	ptrThumbNail=::new ThumbNail();
	ptrThumbNail.disposition(PointerDisposition::Delete);
	if(!ptrThumbNail->setImage(strPathFileName)){mThumbNails.remove(mThumbNails.size()-1);return false;}
	isDirty(true);
	return true;
}

void ThumbPage::remove(const String &strPathFileName)
{
  for(int index=0;index<mThumbNails.size();index++)
	{
	  if(mThumbNails[index]->pathFileName()==strPathFileName)
		{
		  mThumbNails.remove(index);
			index=-1;
		}
	}
  isDirty(true);
}

void ThumbPage::draw(GUIWindow &guiWindow)
{
  PureDevice pureDevice(guiWindow);
  if(mDIB24.isOkay())mDIB24.draw(pureDevice,Rect(0,0,guiWindow.width(),guiWindow.height()),Point(0,0));
}

void ThumbPage::draw(PureDevice &pureDevice,const Rect &dstRect,const Point &srcPoint)
{
  if(mDIB24.isOkay())mDIB24.draw(pureDevice,dstRect,srcPoint);
}

void ThumbPage::update(GUIWindow &guiWindow)
{
  if(!isDirty())return;
	createBitmap(guiWindow);
}

DWORD ThumbPage::memoryUsage(void)const
{
  DWORD memUsage(0);
	for(int index=0;index<mThumbNails.size();index++)memUsage+=((ThumbPage&)*this).mThumbNails[index]->memoryUsage();
	return memUsage;
}

bool ThumbPage::createBitmap(GUIWindow &guiWindow)
{
	PureDevice pureDevice(guiWindow);
	GDIPoint gdiPoint;

  if(!mThumbNails.size()||!guiWindow.isValid())return false;
  if(!getDimensions(guiWindow,gdiPoint))return false;
	mDIB24.create(gdiPoint.x(),-gdiPoint.y(),pureDevice);
  mDIB24.setBits(BkColorBits);
	drawThumbNails(guiWindow);
	isDirty(false);
	return mDIB24.isOkay();
}

bool ThumbPage::drawThumbNails(GUIWindow &guiWindow)
{
  Point xyPoint;

  if(!guiWindow.isValid()||!mThumbNails.size())return false;  
  for(int index=0;index<mThumbNails.size();index++)
	{
	  SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[index];
		if(xyPoint.x()+ptrThumbNail->width()>=guiWindow.width())
		{
		  xyPoint.x(0);
			xyPoint.y(xyPoint.y()+ptrThumbNail->height()+Separator);
		}
		mDIB24.setAtAsm(xyPoint.y(),xyPoint.x(),ptrThumbNail->getImage());
		xyPoint.x(xyPoint.x()+ptrThumbNail->width()+Separator);
	}
	return true;
}

bool ThumbPage::drawThumbNails(PureDevice &pureDevice,GUIWindow &guiWindow)
{
  Point xyPoint;

  if(!pureDevice.isOkay()||!guiWindow.isValid()||!mThumbNails.size())return false;  
  for(int index=0;index<mThumbNails.size();index++)
	{
	  SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[index];
		if(xyPoint.x()+ptrThumbNail->width()>=guiWindow.width())
		{
		  xyPoint.x(0);
			xyPoint.y(xyPoint.y()+ptrThumbNail->height()+Separator);
		}
	  ptrThumbNail->draw(pureDevice,xyPoint);
		xyPoint.x(xyPoint.x()+ptrThumbNail->width()+Separator);
	}
	return true;
}

DWORD ThumbPage::rowItems(GUIWindow &guiWindow)const
{
  Point xyPoint;
	DWORD rowItems;

	rowItems=0;
  if(!guiWindow.isValid()||!mThumbNails.size())return rowItems;
	for(int index=0;index<mThumbNails.size();index++)
	{
	  SmartPointer<ThumbNail> &ptrThumbNail=((Block<SmartPointer<ThumbNail> >&)mThumbNails)[index];
		if(xyPoint.x()+ptrThumbNail->width()>=guiWindow.width())
		{
		  if(!rowItems)rowItems=index+1;
			xyPoint.x(0);
			xyPoint.y(xyPoint.y()+ptrThumbNail->height()+Separator);
		}
		xyPoint.x(xyPoint.x()+ptrThumbNail->width()+Separator);
	}
	if(!rowItems)rowItems=mThumbNails.size();
	return rowItems;
}

int ThumbPage::getDimensions(GUIWindow &guiWindow,GDIPoint &gdiPoint)
{
  Point xyPoint;

  gdiPoint=GDIPoint();
	rowItems(0);
  if(!guiWindow.isValid()||!mThumbNails.size())return rowItems();
	for(int index=0;index<mThumbNails.size();index++)
	{
	  SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[index];
		if(xyPoint.x()+ptrThumbNail->width()>=guiWindow.width())
		{
		  if(!rowItems())
			{
				rowItems(index+1);
			  gdiPoint.x(xyPoint.x());
			}
			xyPoint.x(0);
			xyPoint.y(xyPoint.y()+ptrThumbNail->height()+Separator);
		}
		xyPoint.x(xyPoint.x()+ptrThumbNail->width()+Separator);
	}
	gdiPoint.y(xyPoint.y()+mThumbNails[index-1]->height()+Separator);
	if(!gdiPoint.x())gdiPoint.x(xyPoint.x());
	if(!rowItems())rowItems(mThumbNails.size());
	return rowItems();
}

bool ThumbPage::hitTest(GUIWindow &guiWindow,const Point &clickPoint,String &strPathFileName)
{
  Point xyPoint;
  if(!isOkay())return false;

	for(int index=0;index<mThumbNails.size();index++)
	{
	  SmartPointer<ThumbNail> &ptrThumbNail=mThumbNails[index];
		if(xyPoint.x()+ptrThumbNail->width()>=guiWindow.width())
		{
			xyPoint.x(0);
			xyPoint.y(xyPoint.y()+ptrThumbNail->height()+Separator);
		}
		Rect rgnRect(xyPoint.x(),xyPoint.y(),xyPoint.x()+ptrThumbNail->width(),xyPoint.y()+ptrThumbNail->height());
		if(rgnRect.ptInRect(clickPoint))
		{
		  strPathFileName=ptrThumbNail->pathFileName();
			return true;
		}
		xyPoint.x(xyPoint.x()+ptrThumbNail->width()+Separator);
	}
	return false;
}