drawimagecontainer.cpp

symbian的画图程序

/*
============================================================================
 Name		: DrawImageContainer.cpp
 Author	  : caitong
 Copyright   : Your copyright notice
 Description : Container control implementation
============================================================================
*/

// INCLUDE FILES
#include "DrawImageContainer.h"

#include <eiklabel.h>  // for example label control
#include <DrawImage.mbg>
#include <aknutils.h>
#include <fbs.h>

_LIT(KBitBltBitmapPath,"\\system\\apps\\DrawImage\\DrawImage.mbm");
// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------
// CDrawImageContainer::ConstructL(const TRect& aRect)
// EPOC two phased constructor
// ---------------------------------------------------------
//
void CDrawImageContainer::ConstructL(const TRect& aRect)
	{
	CreateWindowL();

	iLabel = new (ELeave) CEikLabel;
	iLabel->SetContainerWindowL( *this );
	iLabel->SetTextL( _L("Example View") );

	iToDoLabel = new (ELeave) CEikLabel;
	iToDoLabel->SetContainerWindowL( *this );
	iToDoLabel->SetTextL( _L("Add Your controls\n here") );
	SetRect(aRect);

	iBitmap = new (ELeave) CFbsBitmap();
	TFileName bitmapFile (KBitBltBitmapPath);
	User::LeaveIfError (CompleteWithAppPath (bitmapFile));
	User::LeaveIfError(iBitmap->Load(bitmapFile, EMbmDrawimageLoginbg));
	
	iOffScrnBmp = new (ELeave) CFbsBitmap;
	User::LeaveIfError(iOffScrnBmp->Create(Size(), EColor4K));
	iOffScrnBmpDevice = CFbsBitmapDevice::NewL(iOffScrnBmp);
	User::LeaveIfError(iOffScrnBmpDevice->CreateContext(iOffScrnContext));
	
	ActivateL();
	}

// Destructor
CDrawImageContainer::~CDrawImageContainer()
	{
	delete iBitmap;
	delete iOffScrnBmp;
	delete iOffScrnBmpDevice;
	delete iOffScrnContext;
	delete iLabel;
	delete iToDoLabel;
	}

// ---------------------------------------------------------
// CDrawImageContainer::SizeChanged()
// Called by framework when the view size is changed
// ---------------------------------------------------------
//
void CDrawImageContainer::SizeChanged()
	{
	// TODO: Add here control resize code etc.
	iLabel->SetExtent( TPoint(10,10), iLabel->MinimumSize() );
	iToDoLabel->SetExtent( TPoint(10,100), iToDoLabel->MinimumSize() );
	}

// ---------------------------------------------------------
// CDrawImageContainer::CountComponentControls() const
// ---------------------------------------------------------
//
TInt CDrawImageContainer::CountComponentControls() const
	{
	return 2; // return nbr of controls inside this container
	}

// ---------------------------------------------------------
// CDrawImageContainer::ComponentControl(TInt aIndex) const
// ---------------------------------------------------------
//
CCoeControl* CDrawImageContainer::ComponentControl(TInt aIndex) const
	{
	switch ( aIndex )
		{
		case 0:
			return iLabel;
		case 1:
			return iToDoLabel;
		default:
			return NULL;
		}
	}

// ---------------------------------------------------------
// CDrawImageContainer::Draw(const TRect& aRect) const
// ---------------------------------------------------------
//
void CDrawImageContainer::Draw(const TRect& aRect) const
	{
	CWindowGc& gc = SystemGc();
	// TODO: Add your drawing code here
	// example code...
	gc.Clear(aRect);
	TPoint topLeft(10,40);
	gc.BitBlt(topLeft,iBitmap);
	
//	iOffScrnContext->Clear(Rect());
	for (int i=0; i<50; i+=2)
	    {
	     iOffScrnContext->DrawRect(TRect(TPoint(i+30, i+30), TSize(25, 25)));
	    }
//	CWindowGc& gc = SystemGc();
    gc.BitBlt(TPoint(0, 0), iOffScrnBmp);
	
	gc.SetPenStyle( CGraphicsContext::ENullPen );
	gc.SetBrushColor( KRgbGray );
	gc.SetBrushStyle( CGraphicsContext::ESolidBrush );
//	gc.DrawRect( aRect );
	}

// ---------------------------------------------------------
// CDrawImageContainer::HandleControlEventL(
//	 CCoeControl* aControl,TCoeEvent aEventType)
// ---------------------------------------------------------
//
void CDrawImageContainer::HandleControlEventL(
	CCoeControl* /*aControl*/,TCoeEvent /*aEventType*/)
	{
	// TODO: Add your control event handler code here
	}