1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/*
* 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 UBGRAPHICSCOMPASS_H_
#define UBGRAPHICSCOMPASS_H_
#include <QtGui>
#include <QtSvg>
#include "core/UB.h"
#include "domain/UBItem.h"
class UBGraphicsScene;
class UBGraphicsCompass: public QObject, public QGraphicsRectItem, public UBItem
{
Q_OBJECT;
public:
UBGraphicsCompass();
virtual ~UBGraphicsCompass();
enum { Type = UBGraphicsItemType::CompassItemType };
virtual int type() const
{
return Type;
}
virtual UBItem* deepCopy() const;
virtual void copyItemParameters(UBItem *copy) const;
signals:
void hidden();
protected:
virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *styleOption, QWidget *widget);
virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
// Events
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 slots:
void penColorChanged();
void lineWidthChanged();
private:
// Helpers
void paintAngleDisplay(QPainter *painter);
void paintRadiusDisplay(QPainter *painter);
void rotateAroundNeedle(qreal angle);
void drawArc();
void updateResizeCursor();
void updateDrawCursor();
void paintCenterCross();
QCursor moveCursor() const;
QCursor resizeCursor() const;
QCursor rotateCursor() const;
QCursor closeCursor() const;
QCursor drawCursor() const;
QRectF hingeRect() const;
QPointF needlePosition() const;
QPointF pencilPosition() const;
QRectF closeButtonRect() const;
QRectF resizeButtonRect() const;
virtual QPainterPath shape() const;
QPainterPath needleShape() const;
QPainterPath pencilShape() const;
QPainterPath needleBaseShape() const;
QPainterPath needleArmShape() const;
QPainterPath hingeShape() const;
QPainterPath pencilBaseShape() const;
QPainterPath pencilArmShape() const;
UBGraphicsScene* scene() const;
QColor drawColor() const;
QColor middleFillColor() const;
QColor edgeFillColor() const;
QFont font() const;
qreal angleInDegrees() const;
// Members
QCursor mOuterCursor;
QCursor mResizeCursor;
QCursor mDrawCursor;
bool mResizing;
bool mRotating;
bool mDrawing;
bool mShowButtons;
qreal mSpanAngleInDegrees;
QPointF mSceneArcStartPoint;
bool mDrewCircle;
QGraphicsSvgItem* mCloseSvgItem;
QGraphicsSvgItem* mResizeSvgItem;
qreal mAntiScaleRatio;
bool mDrewCenterCross;
// Constants
static const QRect sDefaultRect;
static const int sNeedleLength = 24;
static const int sNeedleBaseLength = 16;
static const int sPencilLength = 16;
static const int sPencilBaseLength = 24;
static const int sMinRadius;
static const int sDegreeToQtAngleUnit = 16;
static const int sFillTransparency = 127;
static const int sDrawTransparency = 192;
static const QColor sLightBackgroundEdgeFillColor;
static const QColor sLightBackgroundMiddleFillColor;
static const QColor sLightBackgroundDrawColor;
static const QColor sDarkBackgroundEdgeFillColor;
static const QColor sDarkBackgroundMiddleFillColor;
static const QColor sDarkBackgroundDrawColor;
static const int sPixelsPerMillimeter = 5;
static const int sDisplayRadiusOnPencilArmMinLength = 300;
static const int sDisplayRadiusUnitMinLength = 250;
};
#endif /* UBGRAPHICSCOMPASS_H_ */