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/*
* Kivio - Visual Modelling and Flowcharting
* Copyright (C) 2000-2001 theKompany.com & Dave Marotti
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __kivio_canvas_h__
#define __kivio_canvas_h__
#include <tqpainter.h>
#include <tqbitmap.h>
#include <tqlineedit.h>
#include <tqwidget.h>
#include <tqpoint.h>
#include <tqrect.h>
#include <tqstring.h>
#include <tqptrlist.h>
#include <KoQueryTrader.h>
#include <KoPoint.h>
#include <KoRect.h>
#include <KoGuides.h>
#include <koffice_export.h>
#include "kivio_intra_stencil_data.h"
class KivioView;
class KivioCanvas;
class KivioPage;
class KivioDoc;
class KivioRuler;
class KivioGuideLineData;
class KivioScreenPainter;
class KivioStencil;
class TQPainter;
class TQLabel;
class TQPixmap;
class TQScrollBar;
class TQTimer;
class KoSize;
class KoRect;
#define YBORDER_WIDTH 50
#define XBORDER_HEIGHT 20
class KIVIO_EXPORT KivioCanvas : public TQWidget
{
Q_OBJECT
friend class KivioView;
public:
KivioCanvas( TQWidget*, KivioView*, KivioDoc*, TQScrollBar*, TQScrollBar* );
~KivioCanvas();
int xOffset() const { return m_iXOffset; }
int yOffset() const { return m_iYOffset; }
const KivioPage* activePage() const;
KivioPage* activePage();
KivioPage* findPage( const TQString& _name );
KivioView* view()const { return m_pView; }
KivioDoc* doc()const { return m_pDoc; }
TQSize actualSize() const;
virtual bool event(TQEvent*);
enum RectType { Insert, Rubber };
void startRectDraw( const TQPoint &p, RectType t );
void continueRectDraw( const TQPoint &p, RectType t );
void endRectDraw();
TQRect rect()const { return currRect; }
void startSpawnerDragDraw( const TQPoint &p );
void continueSpawnerDragDraw( const TQPoint &p );
void endSpawnerDragDraw();
void drawSelectedStencilsXOR();
void drawStencilXOR( KivioStencil * );
KoPoint snapToGrid(const KoPoint&);
KoPoint snapToGuides(const KoPoint&, bool &, bool &);
KoPoint snapToGridAndGuides(const KoPoint&);
KoPoint mapFromScreen(const TQPoint&);
TQPoint mapToScreen(const KoPoint&);
void beginUnclippedSpawnerPainter();
void endUnclippedSpawnerPainter();
void setViewCenterPoint(const KoPoint &);
KoRect visibleArea();
void setVisibleArea(KoRect, int margin = 0);
void setVisibleAreaByWidth(KoRect, int margin = 0);
void setVisibleAreaByHeight(KoRect, int margin = 0);
KoGuides& guideLines() { return m_guides; }
int pageOffsetX() const { return m_pageOffsetX; }
int pageOffsetY() const { return m_pageOffsetY; }
void setShowConnectorTargets(bool state) { m_showConnectorTargets = state; }
bool showConnectorTargets() const { return m_showConnectorTargets; }
signals:
void visibleAreaChanged();
public slots:
virtual void setUpdatesEnabled(bool);
void zoomIn(const TQPoint&);
void zoomOut(const TQPoint&);
void scrollDx(int dx);
void scrollDy(int dy);
void scrollV(int value);
void scrollH(int value);
void updateScrollBars();
void startPasteMoving();
void updateAutoGuideLines();
protected:
virtual void mousePressEvent( TQMouseEvent* );
virtual void mouseReleaseEvent( TQMouseEvent* );
virtual void mouseMoveEvent( TQMouseEvent* );
virtual void enterEvent( TQEvent* );
virtual void leaveEvent( TQEvent* );
virtual void resizeEvent( TQResizeEvent* );
virtual void paintEvent( TQPaintEvent* );
virtual void wheelEvent( TQWheelEvent* );
virtual void dragEnterEvent( TQDragEnterEvent * );
virtual void dragMoveEvent( TQDragMoveEvent * );
virtual void dragLeaveEvent( TQDragLeaveEvent * );
virtual void dropEvent( TQDropEvent * );
virtual void keyPressEvent( TQKeyEvent * );
void beginUnclippedPainter();
void endUnclippedPainter();
void paintSelectedXOR();
void continuePasteMoving(const TQPoint &pos);
void endPasteMoving();
protected slots:
void borderTimerTimeout();
private:
KivioView* m_pView;
KivioDoc* m_pDoc;
TQScrollBar* m_pVertScrollBar;
TQScrollBar* m_pHorzScrollBar;
int m_iXOffset;
int m_iYOffset;
TQPixmap* m_buffer;
int m_pScrollX;
int m_pScrollY;
TQPointArray gridLines;
bool oldRectValid;
TQRect currRect;
TQPoint rectAnchor;
TQPainter* unclippedPainter;
TQPoint sizePreviewPos;
KivioScreenPainter* unclippedSpawnerPainter;
KivioIntraStencilData m_dragStencilData;
KivioStencil* m_pDragStencil;
TQTimer* m_borderTimer;
bool delegateThisEvent;
TQPoint lastPoint;
bool m_pasteMoving;
TQPtrList<KoRect> m_lstOldGeometry;
KoPoint m_origPoint;
KoGuides m_guides;
int m_pageOffsetX;
int m_pageOffsetY;
bool m_showConnectorTargets;
};
#endif
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