ndgrid.cpp

symbian 二版本的自定义控件

#include "NDGrid.h"
//构造函数
CNDGrid::CNDGrid()
{
	iTextArray = NULL;
	iIconArray = NULL;
	iX = 0;
	iY = 0;
}
void CNDGrid::ConstructL(CDesC16ArrayFlat* aTextArray,RPointerArray<CFbsBitmap>* aIconArray)
{
	iTextArray = aTextArray;
	iIconArray = aIconArray;
}
//析构函数
CNDGrid::~CNDGrid()
{

}
//绘制Grid在指定GC上
void CNDGrid::Draw(CWindowGc &aGc)
{
	TRect rect;	
	rect.SetRect(1+iX*58,1+iY*46,58+iX*58,50+iY*46);
	aGc.SetBrushColor(TRgb(0xdfcfca));
	aGc.DrawRect(rect);
	for(TInt i=0;i<3;i++)
	{
		for(TInt j=0;j<3;j++)
		{
			rect.SetRect(29+58*j-19,19+48*i-17,29+19+58*j,19+17+48*i);
			aGc.DrawBitmap(rect,(*iIconArray)[i*3+j]);
			aGc.DrawText((*iTextArray)[i*3+j],TPoint(12+58*j,48+48*i));
		}
	}
}
//获取当前选中索引
TInt CNDGrid::Selected()
{
	return iX*3+iY;
}
//按键处理
TKeyResponse CNDGrid::OfferKeyEventL(const TKeyEvent &aKeyEvent, TEventCode aType)
{
	if(aKeyEvent.iCode == EKeyDownArrow && aType == EEventKey)
	{
		
		if(iY != 2)
		{
			iY += 1;
		}
		else if(iX == 0 && iY == 2 || iX == 1)
		{
			iY = 0;
			iX += 1;
		}
		else
		{
			iY = 0;
			iX = 0;
		}
		return EKeyWasConsumed;
	}
	else if(aKeyEvent.iCode == EKeyUpArrow && aType == EEventKey)
	{
		if(iY != 0)
		{
			iY -= 1;
		}
		else if(iY == 0 && iX == 1 || iX == 2)
		{
			iY = 2;
			iX -= 1;
		}
		else
		{
			iY = 2;
			iX = 2;
		}
		return EKeyWasConsumed;
	}
	else if(aKeyEvent.iCode == EKeyLeftArrow && aType == EEventKey)
	{
		if(iX != 0)
		{
			iX -= 1;
		}
		else if(iX == 0 && iY == 1 || iY == 2)
		{
			iY-=1;
			iX = 2;
		}
		else
		{
			iY =2;
			iX =2;
		}
		return EKeyWasConsumed;
	}
	else if(aKeyEvent.iCode == EKeyRightArrow && aType == EEventKey)
	{
		if(iX != 2)
		{
			iX += 1;
		}
		else if(iX == 2 && iY == 0 || iY ==1)
		{
			iY+=1;
			iX = 0;
		}
		else
		{
			iY=0;
			iX=0;
		}
		return EKeyWasConsumed;
	}
	return EKeyWasConsumed;
}