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/*
* 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef UBGRAPHICSTRIANGLE_H_
#define UBGRAPHICSTRIANGLE_H_
#include <QtGui>
#include <QtSvg>
#include <QGraphicsPolygonItem>
#include "core/UB.h"
#include "domain/UBItem.h"
#include "tools/UBAbstractDrawRuler.h"
class UBGraphicsScene;
class UBItem;
class UBGraphicsTriangle : public UBAbstractDrawRuler, public QGraphicsPolygonItem, public UBItem
{
Q_OBJECT
public:
UBGraphicsTriangle();
virtual ~UBGraphicsTriangle();
enum { Type = UBGraphicsItemType::TriangleItemType };
virtual int type() const
{
return Type;
}
virtual UBItem* deepCopy(void) const;
virtual void copyItemParameters(UBItem *copy) const;
virtual void StartLine(const QPointF& scenePos, qreal width);
virtual void DrawLine(const QPointF& position, qreal width);
virtual void EndLine();
enum UBGraphicsTriangleOrientation
{
BottomLeft = 0,
BottomRight,
TopLeft,
TopRight
};
static UBGraphicsTriangleOrientation orientationFromStr(QStringRef& str)
{
if (str == "BottomLeft") return BottomLeft;
if (str == "BottomRight") return BottomRight;
if (str == "TopLeft") return TopLeft;
if (str == "TopRight") return TopRight;
return sDefaultOrientation;
}
static QString orientationToStr(UBGraphicsTriangleOrientation orientation)
{
QString result;
if (orientation == 0) result = "BottomLeft";
else if (orientation == 1) result = "BottomRight";
else if (orientation == 2) result = "TopLeft";
else if (orientation == 3) result = "TopRight";
return result;
}
void setRect(const QRectF &rect, UBGraphicsTriangleOrientation orientation)
{
setRect(rect.x(), rect.y(), rect.width(), rect.height(), orientation);
}
void setRect(qreal x, qreal y, qreal w, qreal h, UBGraphicsTriangleOrientation orientation);
void setOrientation(UBGraphicsTriangleOrientation orientation);
UBGraphicsTriangleOrientation getOrientation() const {return mOrientation;}
QRectF rect() const {return boundingRect();}
UBGraphicsScene* scene() const;
protected:
void updateResizeCursor();
virtual void paint (QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
virtual QPainterPath shape() const;
virtual void rotateAroundCenter(qreal angle);
virtual QPointF rotationCenter() const;
virtual QRectF closeButtonRect() const;
QPolygonF resize1Polygon() const;
QPolygonF resize2Polygon() const;
QRectF hFlipRect() const;
QRectF vFlipRect() const;
QRectF rotateRect() const;
QCursor resizeCursor1() const;
QCursor resizeCursor2() const;
QCursor flipCursor() const;
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
private:
QCursor mResizeCursor1;
QCursor mResizeCursor2;
QTransform calculateRotationTransform();
qreal angle;
void rotateAroundCenter(QTransform& transform, QPointF center);
bool mResizing1;
bool mResizing2;
bool mRotating;
QRect lastRect;
// Coordinates are transformed....
QPoint lastPos;
QGraphicsSvgItem* mHFlipSvgItem;
QGraphicsSvgItem* mVFlipSvgItem;
QGraphicsSvgItem* mRotateSvgItem;
static const QRect sDefaultRect;
static const UBGraphicsTriangleOrientation sDefaultOrientation;
void paintGraduations(QPainter *painter);
UBGraphicsTriangleOrientation mOrientation;
QPointF A1, B1, C1, A2, B2, C2; // coordinates of points in ext and int triangles
qreal C;
qreal W1, H1; // Neccessary for filling
QPointF CC; // Hyp. fillining gradient - top point
void calculatePoints(const QRectF& rect);
static const int d = 70; // width of triangle border
static const int sArrowLength = 30;
static const int sMinWidth = 380;
static const int sMinHeight = 200;
};
#endif /* UBGRAPHICSTRIANGLE_H_ */