sl@0: /* sl@0: * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). sl@0: * All rights reserved. sl@0: * This component and the accompanying materials are made available sl@0: * under the terms of "Eclipse Public License v1.0" sl@0: * which accompanies this distribution, and is available sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html". sl@0: * sl@0: * Initial Contributors: sl@0: * Nokia Corporation - initial contribution. sl@0: * sl@0: * Contributors: sl@0: * sl@0: * Description: sl@0: * sl@0: */ sl@0: sl@0: #ifndef __FRMTLAY_INTERNAL_H__ sl@0: #define __FRMTLAY_INTERNAL_H__ sl@0: sl@0: #include sl@0: #include sl@0: #include sl@0: #include sl@0: sl@0: #ifdef SYMBIAN_ENABLE_SPLIT_HEADERS sl@0: #include sl@0: #endif sl@0: sl@0: class MLayDoc; sl@0: class MFormCustomInterfaceProvider; sl@0: class MFormCustomInvisibleCharacterRemapper; sl@0: class MFormCustomWrap; sl@0: class MFormCustomDraw; sl@0: sl@0: /** sl@0: @internalTechnology sl@0: Internal to Symbian sl@0: */ sl@0: NONSHARABLE_CLASS(TLayDocTextSource) : public MTmSource, public MFormLabelApi, public MTmTextDrawExt, public MTmCustomExtension sl@0: { sl@0: public: sl@0: sl@0: enum sl@0: { sl@0: EDefaultFontHeightIncreaseFactor = 7, sl@0: EDefaultMinimumLineDescent = 3 sl@0: }; sl@0: sl@0: TLayDocTextSource(); sl@0: sl@0: // overrides for MTmSource pure virtual functions sl@0: MGraphicsDeviceMap& FormatDevice() const; sl@0: MGraphicsDeviceMap& InterpretDevice() const; sl@0: TInt DocumentLength() const; sl@0: void GetText(TInt aPos,TPtrC& aText,TTmCharFormat& aFormat) const; sl@0: void GetParagraphFormatL(TInt aPos,RTmParFormat& aFormat) const; sl@0: TInt ParagraphStart(TInt aPos) const; sl@0: sl@0: // overrides for other MTmSource virtual functions sl@0: TRgb SystemColor(TUint aColorIndex,TRgb aDefaultColor) const; sl@0: CPicture* PictureL(TInt aPos) const; sl@0: TInt GetPictureSizeInTwipsL(TInt aPos,TSize& aSize) const; sl@0: TBool LabelModeSelect(TLabelType aType, TInt aPos); sl@0: void LabelModeCancel(); sl@0: void LabelMetrics(TLabelType aType, TSize& aLabelSize, TInt& aMarginSize) const; sl@0: TUint Map(TUint aChar) const; sl@0: void SetLineHeight(const TLineHeightParam& aParam,TInt& aAscent,TInt& aDescent) const; sl@0: TBool PageBreakInRange(TInt aStartPos,TInt aEndPos) const; sl@0: void DrawBackground(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect, sl@0: const TLogicalRgb& aBackground,TRect& aRectDrawn) const; sl@0: void DrawLineGraphics(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect, sl@0: const TTmLineInfo& aLineInfo) const; sl@0: void DrawText(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect, sl@0: const TTmLineInfo& aLineInfo,const TTmCharFormat& aFormat, sl@0: const TDesC& aText,const TPoint& aTextOrigin,TInt aExtraPixels) const; sl@0: virtual void DrawPicture(CGraphicsContext& aGc, sl@0: const TPoint& aTextLayoutTopLeft, const TRect& aRect, sl@0: MGraphicsDeviceMap& aDevice, const CPicture& aPicture) const; sl@0: void DrawText(CGraphicsContext& aGc,const TPoint& aTextLayoutTopLeft,const TRect& aRect, sl@0: const TTmLineInfo& aLineInfo,const TTmCharFormat& aFormat, sl@0: const TDesC& aText, const TInt aStart, const TInt aEnd, const TPoint& aTextOrigin,TInt aExtraPixels) const; sl@0: sl@0: // overrides for the MTmSource virtual functions which implements the MFormCustomWrap sl@0: // if iCustomWrap is set. sl@0: TBool LineBreakPossible(TUint aPrevClass,TUint aNextClass,TBool aHaveSpaces) const; sl@0: TUint LineBreakClass(TUint aCode,TUint& aRangeStart,TUint& aRangeEnd) const; sl@0: TBool GetLineBreakInContext(const TDesC& aText,TInt aMinBreakPos,TInt aMaxBreakPos, sl@0: TBool aForwards,TInt& aBreakPos) const; sl@0: TBool IsHangingCharacter(TUint aChar) const; sl@0: sl@0: // other functions sl@0: TBool CanMap() const; sl@0: sl@0: TAny* GetExtendedInterface(const TUid& aInterfaceId); sl@0: sl@0: //MTmTextDrawExt implementations sl@0: virtual void DrawLine(CGraphicsContext& aGc, const TPoint& aPt1, const TPoint& aPt2) const; sl@0: virtual void DrawText(CGraphicsContext& aGc, const TDesC& aText, const TPoint& aPt) const; sl@0: virtual void DrawRect(CGraphicsContext& aGc, const TRect& aRc) const; sl@0: sl@0: //Set/reset opaque flag of aGc graphics context sl@0: void SetOpaque(CGraphicsContext& aGc) const; sl@0: void ResetOpaque(CGraphicsContext& aGc) const; sl@0: sl@0: // flags sl@0: enum sl@0: { sl@0: EWrap = 1, sl@0: ETruncateWithEllipsis = 2, sl@0: EUseLabelsDevice = 4 sl@0: }; sl@0: sl@0: MLayDoc* iLayDoc; sl@0: TUint iFlags; // wrap, truncate, etc. sl@0: TInt iWidth; // wrapping width sl@0: TChar iEllipsis; // ellipsis character (or none if 0xFFFF) used if truncating sl@0: TInt iLabelsWidth; sl@0: TInt iLabelsGutter; sl@0: CLayoutData::TFormatMode iFormatMode; sl@0: MGraphicsDeviceMap* iImageDevice; // device map used for drawing text sl@0: MGraphicsDeviceMap* iLabelsDevice; // device map used for labels sl@0: MGraphicsDeviceMap* iFormatDevice; // device map used for formatting sl@0: TInt iFontHeightIncreaseFactor; // percentage automatically added to font heights sl@0: TInt iMinimumLineDescent; // minimum line descent in pixels sl@0: TNonPrintingCharVisibility iNonPrintingCharVisibility; sl@0: const MFormParam* iFormParam; // if non-null, points to the object that supplies system colours sl@0: const MFormCustomDraw* iCustomDraw; // if non-null, points to custom drawing routines sl@0: const MFormCustomWrap* iCustomWrap; // if non-null, points to custom wrapping routines sl@0: /** Optional object able to provide a concrete customisation object for use sl@0: internally by Form. */ sl@0: MFormCustomInterfaceProvider* iInterfaceProvider; sl@0: TBool iDrawOpaque; // Opaque drawing active if the flag is ETrue sl@0: TInt iExcessHeightRequired; // delta required to position the baseline so there is enough sl@0: // space for the highset glyph in pixels. sl@0: MFormCustomInvisibleCharacterRemapper* iInvisibleCharacterRemapper; // Used to customize the remapping of sl@0: // invisible characters to visible characters sl@0: }; sl@0: sl@0: #endif