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author | Timothy Pearson <[email protected]> | 2011-11-08 12:31:36 -0600 |
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committer | Timothy Pearson <[email protected]> | 2011-11-08 12:31:36 -0600 |
commit | d796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch) | |
tree | 6e3dcca4f77e20ec8966c666aac7c35bd4704053 /src/kernel/qtextlayout_p.h | |
download | tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip |
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
Diffstat (limited to 'src/kernel/qtextlayout_p.h')
-rw-r--r-- | src/kernel/qtextlayout_p.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/kernel/qtextlayout_p.h b/src/kernel/qtextlayout_p.h new file mode 100644 index 000000000..c8d6702d1 --- /dev/null +++ b/src/kernel/qtextlayout_p.h @@ -0,0 +1,184 @@ +/**************************************************************************** +** +** ??? +** +** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved. +** +** This file is part of the kernel module of the TQt GUI Toolkit. +** +** This file may be used under the terms of the GNU General +** Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the files LICENSE.GPL2 +** and LICENSE.GPL3 included in the packaging of this file. +** Alternatively you may (at your option) use any later version +** of the GNU General Public License if such license has been +** publicly approved by Trolltech ASA (or its successors, if any) +** and the KDE Free TQt Foundation. +** +** Please review the following information to ensure GNU General +** Public Licensing retquirements will be met: +** http://trolltech.com/products/qt/licenses/licensing/opensource/. +** If you are unsure which license is appropriate for your use, please +** review the following information: +** http://trolltech.com/products/qt/licenses/licensing/licensingoverview +** or contact the sales department at [email protected]. +** +** Licensees holding valid TQt Commercial licenses may use this file in +** accordance with the TQt Commercial License Agreement provided with +** the Software. +** +** This file is provided "AS IS" with NO WARRANTY OF ANY KIND, +** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted +** herein. +** +**********************************************************************/ + +#ifndef TQTEXTLAYOUT_P_H +#define TQTEXTLAYOUT_P_H + +#ifndef QT_H +#include "qstring.h" +#include "qnamespace.h" +#include "qrect.h" +#endif // QT_H + +class TQTextEngine; +class TQFont; + +class Q_EXPORT TQTextItem +{ +public: + inline TQTextItem() : item(0), engine(0) {} + inline bool isValid() const { return (bool)engine; } + + TQRect rect() const; + int x() const; + int y() const; + int width() const; + int ascent() const; + int descent() const; + + enum Edge { + Leading, + Trailing + }; + enum CursorPosition { + BetweenCharacters, + OnCharacters + }; + + /* cPos gets set to the valid position */ + int cursorToX( int *cPos, Edge edge = Leading ) const; + inline int cursorToX( int cPos, Edge edge = Leading ) const { return cursorToX( &cPos, edge ); } + int xToCursor( int x, CursorPosition = BetweenCharacters ) const; + + bool isRightToLeft() const; + bool isObject() const; + bool isSpace() const; + bool isTab() const; + + void setWidth( int w ); + void setAscent( int a ); + void setDescent( int d ); + + int from() const; + int length() const; + +private: + friend class TQTextLayout; + friend class TQPainter; + friend class TQPSPrinter; + TQTextItem( int i, TQTextEngine *e ) : item( i ), engine( e ) {} + int item; + TQTextEngine *engine; +}; + + +class TQPainter; + +class Q_EXPORT TQTextLayout +{ +public: + // does itemization + TQTextLayout(); + TQTextLayout( const TQString& string, TQPainter * = 0 ); + TQTextLayout( const TQString& string, const TQFont& fnt ); + ~TQTextLayout(); + + void setText( const TQString& string, const TQFont& fnt ); + + enum LineBreakStrategy { + AtWordBoundaries, + AtCharBoundaries + }; + + /* add an additional item boundary eg. for style change */ + void setBoundary( int strPos ); + + int numItems() const; + TQTextItem itemAt( int i ) const; + TQTextItem findItem( int strPos ) const; + + enum LayoutMode { + NoBidi, + SingleLine, + MultiLine + }; + void beginLayout( LayoutMode m = MultiLine ); + void beginLine( int width ); + + bool atEnd() const; + TQTextItem nextItem(); + TQTextItem currentItem(); + /* ## maybe also currentItem() */ + void setLineWidth( int newWidth ); + int lineWidth() const; + int widthUsed() const; + int availableWidth() const; + + enum Result { + Ok, + LineFull, + LineEmpty, + Error + }; + /* returns true if completely added */ + Result addCurrentItem(); + + /* Note: if ascent and descent are used they must be initialized to the minimum ascent/descent + acceptable for the line. TQFontMetrics::ascent/descent() is usually the right choice */ + Result endLine( int x = 0, int y = 0, int alignment = TQt::AlignLeft, + int *ascent = 0, int *descent = 0, int *left = 0, int *right = 0 ); + void endLayout(); + + enum CursorMode { + SkipCharacters, + SkipWords + }; + bool validCursorPosition( int pos ) const; + int nextCursorPosition( int oldPos, CursorMode mode = SkipCharacters ) const; + int previousCursorPosition( int oldPos, CursorMode mode = SkipCharacters ) const; + + void setDirection(TQChar::Direction); +private: + TQTextLayout( TQTextEngine *e ) : d( e ) {} + /* disable copy and assignment */ + TQTextLayout( const TQTextLayout & ) {} + void operator = ( const TQTextLayout & ) {} + + friend class TQTextItem; + friend class TQPainter; + friend class TQPSPrinter; + TQTextEngine *d; +}; + + +/* + class TQPainter { + ..... + void drawTextItem( int x, int y, TQTextItem *item ); + }; +*/ + +#endif |