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/*
For general Scribus (>=1.3.2) copyright and licensing information please refer
to the COPYING file provided with the program. Following this notice may exist
a copyright and/or license notice that predates the release of Scribus 1.3.2
for which a new license (GPL+exception) is in place.
*/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#ifndef CANVAS_MODE_H
#define CANVAS_MODE_H
#include "scribusapi.h"
#include <QBrush>
#include <QCursor>
#include <QMap>
#include <QPen>
class QDragEnterEvent;
class QDragMoveEvent;
class QDragLeaveEvent;
class QDropEvent;
class QEvent;
class QInputMethodEvent;
class QImage;
class QMouseEvent;
class QKeyEvent;
class QPainter;
class Canvas;
struct CanvasViewMode;
class PanGesture;
class ScribusDoc;
class ScribusView;
class ScribusMainWindow;
class PageItem;
class PageItemPreview;
/** These aren't real appmodes but open a new window or override behaviour for a short time */
enum SubMode
{
submodeFirstSubmode = 1000,
submodePaintingDone, // return to normal mode
submodeEndNodeEdit, // return from node/shape editing
submodeLoadPic, // open GetImage dialog
submodeStatusPic, // open ManageImages dialog
submodeEditExternal, // open external image editor
submodeAnnotProps, // open properties dialog
submodeLastSubmode
};
/**
This class is a superclass for all mode handlers.
By default, all events are ignored.
*/
class SCRIBUS_API CanvasMode : public QObject
{
Q_OBJECT
protected:
CanvasMode (ScribusView* view);
public:
static CanvasMode* createForAppMode(ScribusView* view, int appMode);
/**
Is called when this mode becomes active, either because it was selected by the user
(fromgesture == false) or because a gesture completed and the canvas returns back to
this mode (fromGesture == true)
*/
virtual void activate(bool fromGesture) {}
/**
Is called when this mode becomes inactive, either because the canvas switches to
another mode (forGesture == false) or because a gesture is activated (forGesture == true)
*/
virtual void deactivate(bool forGesture) {}
virtual void enterEvent(QEvent *) {}
virtual void leaveEvent(QEvent *) {}
virtual void dragEnterEvent(QDragEnterEvent *e) {}
virtual void dragMoveEvent(QDragMoveEvent *e) {}
virtual void dragLeaveEvent(QDragLeaveEvent *e) {}
virtual void dropEvent(QDropEvent *e) {}
virtual void mouseDoubleClickEvent(QMouseEvent *m) {}
virtual void mouseReleaseEvent(QMouseEvent *m) {}
virtual void mouseMoveEvent(QMouseEvent *m) {}
virtual void mousePressEvent(QMouseEvent *m) {}
virtual void keyPressEvent(QKeyEvent *e) {}
virtual void keyReleaseEvent(QKeyEvent *e) {}
virtual void inputMethodEvent(QInputMethodEvent *e) {}
/**
Sets appropiate values for this canvas mode
*/
virtual void updateViewMode(CanvasViewMode* viewmode);
/**
Draws the controls for this mode and the selection marker.
If viewmode.drawSelectionWithControls is true, also draws the selection contents first.
*/
virtual void drawControls(QPainter* p) { }
/** Draws the regular selection marker */
void drawSelection(QPainter* psx, bool drawHandles);
/** Draws an outline of selected items */
void drawOutline(QPainter* p, double scalex=1.0, double scaley=1.0, double deltax=0.0, double deltay=0.0);
#ifdef GESTURE_FRAME_PREVIEW
// I don’t know why the methods above have been implemented here and left non-virtual.
// I need to setup some companion members - pm
private:
QMap<PageItem*, PageItemPreview*> m_pixmapCache;
public:
void clearPixmapCache();
#endif // GESTURE_FRAME_PREVIEW
QCursor modeCursor();
void setModeCursor();
/** main canvas modes dont have a delegate */
virtual CanvasMode* delegate() { return 0; }
ScribusView* view() const { return m_view; }
virtual ~CanvasMode();
protected:
ScribusView * const m_view;
Canvas * const m_canvas;
ScribusDoc * const m_doc;
PanGesture * m_panGesture;
void setResizeCursor(int how, double rot = 0.0);
bool commonMouseMove(QMouseEvent *m);
void commonDrawControls(QPainter* p, bool drawHandles);
private:
QMap<QString,QPen> m_pen;
QMap<QString,QBrush> m_brush;
};
#endif
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