lib

KoRuler.h

00001 /* This file is part of the KDE project
00002    Copyright (C) 1998, 1999 Reginald Stadlbauer <reggie@kde.org>
00003 
00004    This library is free software; you can redistribute it and/or
00005    modify it under the terms of the GNU Library General Public
00006    License as published by the Free Software Foundation; either
00007    version 2 of the License, or (at your option) any later version.
00008 
00009    This library is distributed in the hope that it will be useful,
00010    but WITHOUT ANY WARRANTY; without even the implied warranty of
00011    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012    Library General Public License for more details.
00013 
00014    You should have received a copy of the GNU Library General Public License
00015    along with this library; see the file COPYING.LIB.  If not, write to
00016    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00017  * Boston, MA 02110-1301, USA.
00018 */
00019 
00020 // Description: Ruler (header)
00021 
00022 /******************************************************************/
00023 
00024 #ifndef koRuler_h
00025 #define koRuler_h
00026 
00027 #include <qframe.h>
00028 #include <qpixmap.h>
00029 
00030 #include <kdemacros.h>
00031 #include <koffice_export.h>
00032 #include <KoGlobal.h>
00033 #include <KoTabChooser.h>
00034 #include <KoUnit.h>
00035 
00036 class KoPageLayout;
00037 class QPainter;
00038 
00039 enum KoTabulators { T_LEFT = 0, T_CENTER = 1, T_RIGHT = 2, T_DEC_PNT = 3, T_INVALID = -1 };
00040 enum KoTabulatorFilling { TF_BLANK = 0, TF_DOTS = 1, TF_LINE = 2, TF_DASH = 3, TF_DASH_DOT = 4, TF_DASH_DOT_DOT = 5};
00041 
00046 struct KoTabulator {
00050     double ptPos;
00054     KoTabulators type;
00058     KoTabulatorFilling filling;
00062     double ptWidth;
00066     QChar alignChar;
00067 
00068     bool operator==( const KoTabulator & t ) const {
00069         return QABS( ptPos - t.ptPos ) < 1E-4 && type == t.type &&
00070                filling == t.filling && QABS( ptWidth - t.ptWidth ) < 1E-4;
00071     }
00072     bool operator!=( const KoTabulator & t ) const {
00073         return !operator==(t);
00074     }
00075     // Operators used for sorting
00076     bool operator < ( const KoTabulator & t ) const {
00077         return ptPos < t.ptPos;
00078     }
00079     bool operator <= ( const KoTabulator & t ) const {
00080         return ptPos <= t.ptPos;
00081     }
00082     bool operator > ( const KoTabulator & t ) const {
00083         return ptPos > t.ptPos;
00084     }
00085 };
00086 
00087 typedef QValueList<KoTabulator> KoTabulatorList;
00088 
00089 class KoRulerPrivate;
00090 
00101 class KOFFICEUI_EXPORT KoRuler : public QFrame
00102 {
00103     Q_OBJECT
00104     friend class KoRulerPrivate; // for the Action enum
00105 public:
00106     static const int F_TABS;
00107     static const int F_INDENTS;
00108     static const int F_HELPLINES;
00109     static const int F_NORESIZE;
00110 
00115     KoRuler( QWidget *_parent,  QWidget *_canvas, Orientation _orientation,
00116              const KoPageLayout& _layout, int _flags, KoUnit::Unit _unit,
00117              KoTabChooser *_tabChooser = 0L );
00118     ~KoRuler();
00119 
00125     void setUnit( const QString& unit ) KDE_DEPRECATED ;
00129     void setUnit( KoUnit::Unit unit );
00130 
00134     void setZoom( const double& zoom=1.0 );
00138     const double& zoom() const { return m_zoom; }
00139 
00145     void setPageLayout( const KoPageLayout& _layout );
00146 
00152     void showMousePos( bool _showMPos );
00158     void setMousePos( int mx, int my );
00159 
00165     void setOffset( int _diffx, int _diffy );
00166 
00170     void setLeftIndent( double _left )
00171     { i_left = makeIntern( _left ); update(); }
00172 
00177     void setFirstIndent( double _first )
00178     { i_first = makeIntern( _first ); update(); }
00179 
00183     void setRightIndent( double _right );
00184 
00190     void setDirection( bool rtl );
00191 
00195     void setTabList( const KoTabulatorList & tabList );
00196 
00205     void setFrameStartEnd( int _frameStart, int _frameEnd );
00206 
00211     void setReadWrite( bool _readWrite );
00212 
00216     void changeFlags(int _flags);
00217 
00222     void setGridSize(double newGridSize) { gridSize=newGridSize; }
00223 
00227     int flags() const;
00228 
00238     bool doubleClickedIndent() const;
00239 
00243     void setPageLayoutMenuItemEnabled(bool b);
00244 
00248     virtual QSize minimumSizeHint() const;
00249 
00253     virtual QSize sizeHint() const;
00254 
00255 signals:
00256     void newPageLayout( const KoPageLayout & );
00257     void newLeftIndent( double );
00258     void newFirstIndent( double );
00259     void newRightIndent( double );
00261     void openPageLayoutDia();
00263     void doubleClicked();
00265     void doubleClicked( double ptPos );
00266 
00267     void tabListChanged( const KoTabulatorList & );
00268     void unitChanged( KoUnit::Unit );
00269 
00270     void addGuide(const QPoint &, bool, int );
00271     void moveGuide( const QPoint &, bool, int );
00272     void addHelpline(const QPoint &, bool );
00273     void moveHelpLines( const QPoint &, bool );
00274 
00275 protected:
00276     enum Action {A_NONE, A_BR_LEFT, A_BR_RIGHT, A_BR_TOP, A_BR_BOTTOM,
00277                  A_LEFT_INDENT, A_FIRST_INDENT, A_TAB, A_RIGHT_INDENT,
00278                  A_HELPLINES };
00279 
00280     void drawContents( QPainter *_painter )
00281     { orientation == Qt::Horizontal ? drawHorizontal( _painter ) : drawVertical( _painter ); }
00282 
00283     void drawHorizontal( QPainter *_painter );
00284     void drawVertical( QPainter *_painter );
00285     void drawTabs( QPainter &_painter );
00286 
00287     void mousePressEvent( QMouseEvent *e );
00288     void mouseReleaseEvent( QMouseEvent *e );
00289     void mouseMoveEvent( QMouseEvent *e );
00290     void mouseDoubleClickEvent( QMouseEvent* );
00291     void resizeEvent( QResizeEvent *e );
00292     void handleDoubleClick();
00293 
00294     double makeIntern( double _v );
00295     double zoomIt(const double &value) const;
00296     int zoomIt(const int &value) const;
00297     unsigned int zoomIt(const unsigned int &value) const;
00298     double unZoomIt(const double &value) const;
00299     int unZoomIt(const int &value) const;
00300     unsigned int unZoomIt(const unsigned int &value) const;
00301     void setupMenu();
00302     void uncheckMenu();
00303     void searchTab(int mx);
00304     void drawLine(int oldX, int newX);
00305 
00306 private:
00307     double applyRtlAndZoom( double value ) const;
00308     double unZoomItRtl( int pixValue ) const;
00309     double lineDistance() const;
00310     bool willRemoveTab( int y ) const;
00311 
00312     KoRulerPrivate *d;
00313 
00314     Qt::Orientation orientation;
00315     int diffx, diffy;
00316     double i_left, i_first;
00317     QPixmap buffer;
00318     double m_zoom, m_1_zoom;
00319     KoUnit::Unit m_unit;
00320     bool hasToDelete;
00321     bool showMPos;
00322     bool m_bFrameStartSet;
00323     bool m_bReadWrite;
00324     int mposX, mposY;
00325     int frameStart;
00326 
00327     double gridSize;
00328 
00329 protected slots:
00330     void slotMenuActivated( int i );
00331     void pageLayoutDia() { emit doubleClicked()/*openPageLayoutDia()*/; }
00332     void rbRemoveTab();
00333 
00334 };
00335 
00336 inline double KoRuler::zoomIt(const double &value) const {
00337     if (m_zoom==1.0)
00338         return value;
00339     return m_zoom*value;
00340 }
00341 
00342 inline int KoRuler::zoomIt(const int &value) const {
00343     if (m_zoom==1.0)
00344         return value;
00345     return qRound(m_zoom*value);
00346 }
00347 
00348 inline unsigned int KoRuler::zoomIt(const unsigned int &value) const {
00349     if (m_zoom==1.0)
00350         return value;
00351     return static_cast<unsigned int>(qRound(m_zoom*value));
00352 }
00353 
00354 inline double KoRuler::unZoomIt(const double &value) const {
00355     if(m_zoom==1.0)
00356         return value;
00357     return value*m_1_zoom;
00358 }
00359 
00360 inline int KoRuler::unZoomIt(const int &value) const {
00361     if(m_zoom==1.0)
00362         return value;
00363     return qRound(value*m_1_zoom);
00364 }
00365 
00366 inline unsigned int KoRuler::unZoomIt(const unsigned int &value) const {
00367     if(m_zoom==1.0)
00368         return value;
00369     return static_cast<unsigned int>(qRound(value*m_1_zoom));
00370 }
00371 
00372 #endif
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