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50
51#ifndef QTBOX_H
52#define QTBOX_H
53
54#include "glbuffers.h"
55
56#include <QtWidgets>
57#include <QVector3D>
58
59class ItemBase : public QGraphicsItem
60{
61public:
62 enum { Type = UserType + 1 };
63
64 ItemBase(int size, int x, int y);
65 QRectF boundingRect() const override;
66 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
67protected:
68 virtual ItemBase *createNew(int size, int x, int y) = 0;
69 void contextMenuEvent(QGraphicsSceneContextMenuEvent *event) override;
70 void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override;
71 void hoverMoveEvent(QGraphicsSceneHoverEvent *event) override;
72 void mousePressEvent(QGraphicsSceneMouseEvent *event) override;
73 void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override;
74 void keyPressEvent(QKeyEvent *event) override;
75 void wheelEvent(QGraphicsSceneWheelEvent *event) override;
76 int type() const override;
77 bool isInResizeArea(const QPointF &pos);
78
79 static void duplicateSelectedItems(QGraphicsScene *scene);
80 static void deleteSelectedItems(QGraphicsScene *scene);
81 static void growSelectedItems(QGraphicsScene *scene);
82 static void shrinkSelectedItems(QGraphicsScene *scene);
83
84 int m_size;
85 QTime m_startTime;
86 bool m_isResizing = false;
87};
88
89class QtBox : public ItemBase
90{
91public:
92 QtBox(int size, int x, int y);
93 virtual ~QtBox();
94 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
95protected:
96 ItemBase *createNew(int size, int x, int y) override;
97private:
98 QVector3D m_vertices[8];
99 QVector3D m_texCoords[4];
100 QVector3D m_normals[6];
101 GLTexture *m_texture = nullptr;
102};
103
104class CircleItem : public ItemBase
105{
106public:
107 CircleItem(int size, int x, int y);
108 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
109protected:
110 ItemBase *createNew(int size, int x, int y) override;
111
112 QColor m_color;
113};
114
115class SquareItem : public ItemBase
116{
117public:
118 SquareItem(int size, int x, int y);
119 void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override;
120protected:
121 ItemBase *createNew(int size, int x, int y) override;
122
123 QPixmap m_image;
124};
125
126#endif
127

source code of qtbase/examples/widgets/graphicsview/boxes/qtbox.h