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OpenBoard/src/tools/UBGraphicsAxes.h

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/*
* Copyright (C) 2015-2018 Département de l'Instruction Publique (DIP-SEM)
*
* Copyright (C) 2013 Open Education Foundation
*
* Copyright (C) 2010-2013 Groupement d'Intérêt Public pour
* l'Education Numérique en Afrique (GIP ENA)
*
* This file is part of OpenBoard.
*
* OpenBoard 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, version 3 of the License,
* with a specific linking exception for the OpenSSL project's
* "OpenSSL" library (or with modified versions of it that use the
* same license as the "OpenSSL" library).
*
* OpenBoard 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 OpenBoard. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef UBGRAPHICSAXES_H
#define UBGRAPHICSAXES_H
#include <QtGui>
#include <QtSvg>
#include "core/UB.h"
#include "domain/UBItem.h"
class UBGraphicsScene;
class UBGraphicsAxes : public QObject, public QGraphicsPolygonItem, public UBItem
{
Q_OBJECT
public:
UBGraphicsAxes();
virtual ~UBGraphicsAxes();
enum { Type = UBGraphicsItemType::AxesItemType };
virtual int type() const
{
return Type;
}
virtual UBItem* deepCopy() const;
virtual void copyItemParameters(UBItem *copy) const;
void setRect(qreal x, qreal y, qreal w, qreal h);
QRectF bounds() const;
void setShowNumbers(bool showNumbers);
bool showNumbes() const;
enum UBGraphicsAxesDirection
{
Left = 0,
Right,
Bottom,
Top
};
protected:
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
void paintGraduations(QPainter *painter);
void setRect(const QRectF &rect);
// Events
virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);
virtual void hoverEnterEvent(QGraphicsSceneHoverEvent *event);
virtual void hoverMoveEvent(QGraphicsSceneHoverEvent *event);
virtual void hoverLeaveEvent(QGraphicsSceneHoverEvent *event);
private:
// Helpers
void updateResizeCursor();
QCursor resizeCursor() const;
QCursor closeCursor() const;
QCursor moveCursor() const;
void selectCursor(QGraphicsSceneHoverEvent *event);
virtual QRectF resizeLeftRect() const;
virtual QRectF resizeRightRect() const;
virtual QRectF resizeBottomRect() const;
virtual QRectF resizeTopRect() const;
virtual QRectF closeButtonRect() const;
virtual QRectF numbersButtonRect() const;
virtual QLineF xAxis() const;
virtual QLineF yAxis() const;
virtual UBGraphicsScene* scene() const;
QColor drawColor() const;
QFont font() const;
QGraphicsSvgItem* mCloseSvgItem;
QGraphicsSvgItem* mNumbersSvgItem;
bool mResizing;
UBGraphicsAxesDirection mResizeDirection;
bool mShowButtons;
bool mShowNumbers;
QCursor mResizeCursorH;
QCursor mResizeCursorV;
qreal mAntiScaleRatio;
qreal mPixelsPerCentimeter;
QRectF mBounds;
// Constants
static const QRect sDefaultRect;
static const int sMinLength = 50; // 1sm
static const int sMaxLength = 35000; // 700sm
static const int sArrowLength = 12;
static const int sArrowWidth = 5;
static const int sMargin = 5;
static const int sItemWidth = 30;
static const int sDrawTransparency = 255;
static const QColor sLightBackgroundDrawColor;
static const QColor sDarkBackgroundDrawColor;
};
#endif // UBGRAPHICSAXES_H