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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_GESTURE_LINEMOVE_H
#define CANVAS_GESTURE_LINEMOVE_H
#include <QRectF>
#include "scribusapi.h"
#include "canvasgesture.h"
#include "canvasmode.h"
class QDragEnterEvent;
class QDragMoveEvent;
class QDragLeaveEvent;
class QDropEvent;
class QEvent;
class QInputMethodEvent;
class QMouseEvent;
class QKeyEvent;
class QPainter;
class QRubberBand;
class PageItem;
class PageItem_Line;
/**
This class realizes moving the endpoints of a line on behalf of its parent mode.
The user presses the mousebutton at one endpoint of the line, drags it to a new position
and releases the mousebutton.
When the parent mode becomes active again, it can retrieve the new line with endPoint().
If the constructur with a pageitem is used, the gesture will change the item directly.
*/
class SCRIBUS_API LineMove : public CanvasGesture
{
public:
LineMove (CanvasMode* parent): CanvasGesture(parent), m_haveLineItem(false), m_bounds(0,0,0,0) {};
~LineMove() {}
/**
Prepare a LineMove without attached PageItem
*/
void prepare(QPointF start, QPointF end);
/** Prepare a LineMove gesture for a PageItem_Line.
useOriginAsEndpoint allows to drag the origin (topleft) in the same way as the other end.
*/
void prepare(PageItem_Line* line, bool useOriginAsEndpoint = false);
void clear();
virtual void activate(bool);
virtual void deactivate(bool);
virtual void mouseReleaseEvent(QMouseEvent *m);
virtual void mouseMoveEvent(QMouseEvent *m);
/**
prepares the LineMove for the the current selection. Sets 'haveLineItem'
to false if the current selection is not a single lineitem.
*/
virtual void mousePressEvent(QMouseEvent *m);
virtual void drawControls(QPainter*);
void setStartPoint(QPointF canvasStart);
void setEndPoint(QPointF canvasEnd);
QPointF startPoint() const { return m_bounds.topLeft(); }
QPointF endPoint() const { return m_bounds.bottomRight(); }
bool haveLineItem() const { return m_haveLineItem; }
private:
bool m_haveLineItem;
bool m_useOriginAsEndpoint;
QRectF m_bounds;
QRectF m_initialBounds;
PageItem* m_line;
void adjustBounds(QMouseEvent* m, bool updateCanvas = true);
void doResize();
void setRotation(double rot);
double rotation() const;
double length() const;
};
#endif
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