Symbian 中大段文本显示控件详解

核心提示：}void CTextDisplay::SetBackground(TRgb aRgb){iBackGround = aRgb;}void CTextDisplay::AccountTotalLine(){for(TInt i=0;iCount();i++){TInt nStringMaxDisplayLine = i

}

void CTextDisplay::SetBackground(TRgb aRgb)

{

iBackGround = aRgb;

}

void CTextDisplay::AccountTotalLine()

{

for(TInt i=0;iCount();i++)

{

TInt nStringMaxDisplayLine = iFont->TextWidthInPixels((*iDisplayContent)[i]->Des())/(iRect.Width() - iScrollBarWidth) + iMaxDisplayLine;

TBidiText* bidi = TBidiText::NewL((*iDisplayContent)[i]->Des(), nStringMaxDisplayLine);

bidi->WrapText(iRect.Width()-iScrollBarWidth, *iFont, NULL);

TInt lines = bidi->NumberOfLinesInDisplayText();

iTotalLine += lines;

delete bidi;

}

}

TInt CTextDisplay::GetMaxDisplay()

{

return (iRect.Height() - LASTSPACE - iStartPoit.iY)/(iFont->HeightInPixels() + iLineToLineSpace);

}

void CTextDisplay::SetScrollBarWidth(TInt aWidth)

{

iScrollBarWidth = aWidth;

}

//创建系统滚动条

void CTextDisplay::CreateScrollBars(TInt aCunt)

{

//构造

iSBFrame=new(ELeave) CEikScrollBarFrame(iParent, NULL,ETrue);

iSBFrame->CreateDoubleSpanScrollBarsL(ETrue, EFalse,ETrue,ETrue);

iSBFrame->SetTypeOfVScrollBar(CEikScrollBarFrame::EDoubleSpan);

iSBFrame->SetScrollBarVisibilityL(CEikScrollBarFrame::EOff,

CEikScrollBarFrame::EAuto);

iModel = TEikScrollBarModel(aCunt, 1, 0);

//设置区域

TRect aRect;

aRect = TRect(TPoint(iRect.Width()-iScrollBarWidth,iRect.iTl.iY),TSize(iScrollBarWidth,iRect.Height()-LASTSPACE));

iSBFrame->Tile(&iModel,aRect);

//设置初始位置-绝对坐标

iSBFrame->MoveVertThumbTo(0);

iSBFrame->DrawScrollBarsNow();

}

// End of File