1 | /**************************************************************************** |
2 | ** |
3 | ** Copyright (C) 2016 The Qt Company Ltd. |
4 | ** Contact: https://www.qt.io/licensing/ |
5 | ** |
6 | ** This file is part of the Qt Data Visualization module of the Qt Toolkit. |
7 | ** |
8 | ** $QT_BEGIN_LICENSE:GPL$ |
9 | ** Commercial License Usage |
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15 | ** information use the contact form at https://www.qt.io/contact-us. |
16 | ** |
17 | ** GNU General Public License Usage |
18 | ** Alternatively, this file may be used under the terms of the GNU |
19 | ** General Public License version 3 or (at your option) any later version |
20 | ** approved by the KDE Free Qt Foundation. The licenses are as published by |
21 | ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
22 | ** included in the packaging of this file. Please review the following |
23 | ** information to ensure the GNU General Public License requirements will |
24 | ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
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26 | ** $QT_END_LICENSE$ |
27 | ** |
28 | ****************************************************************************/ |
29 | |
30 | // |
31 | // W A R N I N G |
32 | // ------------- |
33 | // |
34 | // This file is not part of the QtDataVisualization API. It exists purely as an |
35 | // implementation detail. This header file may change from version to |
36 | // version without notice, or even be removed. |
37 | // |
38 | // We mean it. |
39 | |
40 | #ifndef DRAWER_P_H |
41 | #define DRAWER_P_H |
42 | |
43 | #include "datavisualizationglobal_p.h" |
44 | #include "q3dbars.h" |
45 | #include "q3dtheme.h" |
46 | #include "labelitem_p.h" |
47 | #include "abstractrenderitem_p.h" |
48 | |
49 | QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
50 | |
51 | class ShaderHelper; |
52 | class ObjectHelper; |
53 | class AbstractObjectHelper; |
54 | class SurfaceObject; |
55 | class TextureHelper; |
56 | class Q3DCamera; |
57 | class Abstract3DRenderer; |
58 | class ScatterPointBufferHelper; |
59 | |
60 | class Drawer : public QObject, public QOpenGLFunctions |
61 | { |
62 | Q_OBJECT |
63 | |
64 | public: |
65 | enum LabelPosition { |
66 | LabelBelow = 0, |
67 | LabelLow, |
68 | LabelMid, |
69 | LabelHigh, |
70 | LabelOver, |
71 | LabelBottom, // Absolute positions from here onward, used for axes (QDataItem is ignored) |
72 | LabelTop, |
73 | LabelLeft, |
74 | LabelRight |
75 | }; |
76 | |
77 | public: |
78 | explicit Drawer(Q3DTheme *theme); |
79 | ~Drawer(); |
80 | |
81 | void initializeOpenGL(); |
82 | |
83 | void setTheme(Q3DTheme *theme); |
84 | Q3DTheme *theme() const; |
85 | QFont font() const; |
86 | inline GLfloat scaledFontSize() const { return m_scaledFontSize; } |
87 | |
88 | void drawObject(ShaderHelper *shader, AbstractObjectHelper *object, GLuint textureId = 0, |
89 | GLuint depthTextureId = 0, GLuint textureId3D = 0); |
90 | void drawSelectionObject(ShaderHelper *shader, AbstractObjectHelper *object); |
91 | void drawSurfaceGrid(ShaderHelper *shader, SurfaceObject *object); |
92 | void drawPoint(ShaderHelper *shader); |
93 | void drawPoints(ShaderHelper *shader, ScatterPointBufferHelper *object, GLuint textureId); |
94 | void drawLine(ShaderHelper *shader); |
95 | void drawLabel(const AbstractRenderItem &item, const LabelItem &labelItem, |
96 | const QMatrix4x4 &viewmatrix, const QMatrix4x4 &projectionmatrix, |
97 | const QVector3D &positionComp, const QQuaternion &rotation, GLfloat itemHeight, |
98 | QAbstract3DGraph::SelectionFlags mode, ShaderHelper *shader, ObjectHelper *object, |
99 | const Q3DCamera *camera, bool useDepth = false, bool rotateAlong = false, |
100 | LabelPosition position = LabelOver, |
101 | Qt::Alignment alignment = Qt::AlignCenter, bool isSlicing = false, |
102 | bool isSelecting = false); |
103 | |
104 | void generateSelectionLabelTexture(Abstract3DRenderer *item); |
105 | void generateLabelItem(LabelItem &item, const QString &text, int widestLabel = 0); |
106 | |
107 | Q_SIGNALS: |
108 | void drawerChanged(); |
109 | |
110 | private: |
111 | Q3DTheme *m_theme; |
112 | TextureHelper *m_textureHelper; |
113 | GLuint m_pointbuffer; |
114 | GLuint m_linebuffer; |
115 | GLfloat m_scaledFontSize; |
116 | }; |
117 | |
118 | QT_END_NAMESPACE_DATAVISUALIZATION |
119 | |
120 | #endif |
121 | |