| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the Qt Charts module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
| ** Software or, alternatively, in accordance with the terms contained in |
| ** a written agreement between you and The Qt Company. For licensing terms |
| ** and conditions see https://www.qt.io/terms-conditions. For further |
| ** information use the contact form at https://www.qt.io/contact-us. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
| ** General Public License version 3 or (at your option) any later version |
| ** approved by the KDE Free Qt Foundation. The licenses are as published by |
| ** the Free Software Foundation and appearing in the file LICENSE.GPL3 |
| ** included in the packaging of this file. Please review the following |
| ** information to ensure the GNU General Public License requirements will |
| ** be met: https://www.gnu.org/licenses/gpl-3.0.html. |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| // W A R N I N G |
| // ------------- |
| // |
| // This file is not part of the Qt Chart API. It exists purely as an |
| // implementation detail. This header file may change from version to |
| // version without notice, or even be removed. |
| // |
| // We mean it. |
| |
| #ifndef GLWIDGET_H |
| #define GLWIDGET_H |
| |
| #ifndef QT_NO_OPENGL |
| |
| #include <QtWidgets/QOpenGLWidget> |
| #include <QtWidgets/QGraphicsView> |
| #include <QtGui/QOpenGLFunctions> |
| #include <QtGui/QOpenGLVertexArrayObject> |
| #include <QtGui/QOpenGLBuffer> |
| #include <QtGui/QOpenGLFramebufferObject> |
| #include <QtCore/QHash> |
| #include <QtCharts/QAbstractSeries> |
| #include <QtCharts/QXYSeries> |
| #include <QtCharts/QChart> |
| |
| QT_FORWARD_DECLARE_CLASS(QOpenGLShaderProgram) |
| |
| QT_CHARTS_BEGIN_NAMESPACE |
| |
| class GLXYSeriesDataManager; |
| |
| class GLWidget : public QOpenGLWidget, protected QOpenGLFunctions |
| { |
| Q_OBJECT |
| |
| public: |
| GLWidget(GLXYSeriesDataManager *xyDataManager, QChart *chart, QGraphicsView *parent = 0); |
| ~GLWidget(); |
| |
| bool needsReset() const; |
| |
| public Q_SLOTS: |
| void cleanup(); |
| void cleanXYSeriesResources(const QXYSeries *series); |
| |
| protected: |
| void initializeGL() override; |
| void paintGL() override; |
| void resizeGL(int width, int height) override; |
| void mouseDoubleClickEvent(QMouseEvent *event) override; |
| void mouseMoveEvent(QMouseEvent *event) override; |
| void mousePressEvent(QMouseEvent *event) override; |
| void mouseReleaseEvent(QMouseEvent *event) override; |
| |
| private: |
| QXYSeries *findSeriesAtEvent(QMouseEvent *event); |
| void render(bool selection); |
| void recreateSelectionFbo(); |
| QXYSeries *chartSeries(const QXYSeries *cSeries); |
| |
| QOpenGLShaderProgram *m_program; |
| int m_shaderAttribLoc; |
| int m_colorUniformLoc; |
| int m_minUniformLoc; |
| int m_deltaUniformLoc; |
| int m_pointSizeUniformLoc; |
| int m_matrixUniformLoc; |
| QOpenGLVertexArrayObject m_vao; |
| |
| QHash<const QAbstractSeries *, QOpenGLBuffer *> m_seriesBufferMap; |
| GLXYSeriesDataManager *m_xyDataManager; |
| bool m_antiAlias; |
| QGraphicsView *m_view; |
| QOpenGLFramebufferObject *m_selectionFbo; |
| QSize m_fboSize; |
| QVector<const QXYSeries *> m_selectionVector; |
| QChart *m_chart; |
| bool m_recreateSelectionFbo; |
| bool m_selectionRenderNeeded; |
| QPoint m_mousePressPos; |
| bool m_mousePressed; |
| QXYSeries *m_lastPressSeries; |
| QXYSeries *m_lastHoverSeries; |
| }; |
| |
| QT_CHARTS_END_NAMESPACE |
| #endif |
| #endif |