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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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 |
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26 | ** $QT_END_LICENSE$ |
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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 DATAVISUALIZATIONGLOBAL_P_H |
41 | #define DATAVISUALIZATIONGLOBAL_P_H |
42 | |
43 | #include "qdatavisualizationglobal.h" |
44 | #include <QtGui/QOpenGLFunctions> |
45 | #include <QtGui/QVector3D> |
46 | #include <QtGui/QQuaternion> |
47 | #include <QtCore/QDebug> |
48 | |
49 | QT_BEGIN_NAMESPACE_DATAVISUALIZATION |
50 | |
51 | // Constants used in several files |
52 | // Distance from camera to origin |
53 | static const GLfloat cameraDistance = 6.0f; |
54 | // Size of font to be used in label texture rendering. Doesn't affect the actual font size. |
55 | static const int textureFontSize = 50; |
56 | static const GLfloat defaultRatio = 1.0f / 1.6f; // default aspect ratio 16:10 |
57 | #if !(defined QT_OPENGL_ES) |
58 | static const float gridLineOffset = 0.0001f; // Offset for lifting grid lines off background |
59 | #else |
60 | static const float gridLineOffset = 0.0035f; // Offset for lifting grid lines off background |
61 | #endif |
62 | // Default light position. To have shadows working correctly, light should be as far as camera, or a bit further |
63 | // y position is added to the minimum height (or can be thought to be that much above or below the camera) |
64 | static const QVector3D defaultLightPos = QVector3D(0.0f, 0.5f, 0.0f); |
65 | static const QVector3D zeroVector = QVector3D(0.0f, 0.0f, 0.0f); |
66 | static const QVector3D oneVector = QVector3D(1.0f, 1.0f, 1.0f); |
67 | static const QVector3D upVector = QVector3D(0.0f, 1.0f, 0.0f); |
68 | static const QVector3D cameraDistanceVector = QVector3D(0.0f, 0.0f, cameraDistance); |
69 | static const QQuaternion identityQuaternion; |
70 | |
71 | // Skip color == selection texture's background color |
72 | static const QVector4D selectionSkipColor = QVector4D(255.0f, 255.0f, 255.0f, 255.0f); |
73 | static const QVector4D invalidColorVector = QVector4D(-1.0f, -1.0f, -1.0f, -1.0f); |
74 | static const GLfloat itemAlpha = 0.0f; |
75 | static const GLfloat customItemAlpha = 252.0f; |
76 | static const GLfloat labelValueAlpha = 253.0f; |
77 | static const GLfloat labelRowAlpha = 254.0f; |
78 | static const GLfloat labelColumnAlpha = 255.0f; |
79 | static const GLfloat gradientTextureHeight = 1024.0f; |
80 | static const GLfloat gradientTextureWidth = 2.0f; |
81 | static const GLfloat uniformTextureHeight = 64.0f; |
82 | static const GLfloat uniformTextureWidth = 2.0f; |
83 | static const GLfloat labelMargin = 0.05f; |
84 | static const GLfloat gridLineWidth = 0.005f; |
85 | |
86 | QT_END_NAMESPACE_DATAVISUALIZATION |
87 | |
88 | #endif |
89 | |