コード例 #1
0
ファイル: GULUTIL.CPP プロジェクト: cdaffara/symbiandump-mw1
EXPORT_C void TextUtils::ClipToFit(TDes& aBuffer,const CFont& aFont,TInt aMaxWidthInPixels,TChar aAlternativeEnd)
/** Clips text to fit into a maximum width.

If the text is too wide to fit in the width when displayed in aFont, 
it is truncated and the specified character (by default, 
a horizontal ellipsis) is appended to it.

@param aBuffer A buffer containing the text to clip.
@param aFont The font.
@param aMaxWidthInPixels The maximum width in pixels.
@param aAlternativeEnd The Unicode character to append to the buffer if truncated. 
By default, this is the horizontal ellipsis. */
	{
	TInt textWidth=aFont.TextWidthInPixels(aBuffer);
	if (textWidth<=aMaxWidthInPixels)
		return;
	TBuf<1> ellipse;
	ellipse.Append(aAlternativeEnd);
	TInt extraWidth=aFont.TextWidthInPixels(ellipse);
	TInt cutOff=aFont.TextCount(aBuffer,aMaxWidthInPixels-extraWidth);
	aBuffer.SetLength(cutOff);
	aBuffer.Append(ellipse);
	}
コード例 #2
0
CFont*
CMainMenuListContainer::FindLargestPossibleFontL(const TDesC& aTextToFit,
        TInt aMaxWidthInPixels,
        enum TAknLogicalFontId aPreferredLogicalFontId) const
{
    TInt fontMinimizerFactorInPixels = 2;
    // Get the screen device so that we can calc the twips
    // per pixel
    TPixelsTwipsAndRotation twips;
    CWsScreenDevice* screenDev = CEikonEnv::Static()->ScreenDevice();
    screenDev->GetScreenModeSizeAndRotation(screenDev->CurrentScreenMode(),
                                            twips);

    // Calc the twips per pixel
    TReal twipsPerPixel = twips.iTwipsSize.iHeight /
                          TReal(twips.iPixelSize.iHeight);

    // Get the preferred logical font from the font store
    const CFont* preferredFont = AknLayoutUtils::
                                 FontFromId(aPreferredLogicalFontId);
    TFontSpec fontSpec = preferredFont->FontSpecInTwips();

    // Get the font that matches the fontspec the best
    CFont* fontToUse;
    screenDev->
    GetNearestFontToDesignHeightInTwips(fontToUse, fontSpec);
    TInt fontMinimizerFactorInTwips =
        TInt(fontMinimizerFactorInPixels * twipsPerPixel);

    while (aMaxWidthInPixels < fontToUse->TextWidthInPixels(aTextToFit)) {
        // The text didnt fit within the given space, make the font
        // a bit smaller and try again
        screenDev->ReleaseFont(fontToUse);
        fontSpec.iHeight -= fontMinimizerFactorInTwips;
        screenDev->
        GetNearestFontToDesignHeightInTwips(fontToUse, fontSpec);
    }

    // Return the font, the caller has to release the font
    // from the CWsScreenDevice
    return fontToUse;
}