scene.h Example File

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#ifndef SCENE_H #define SCENE_H //#include <GL/glew.h> #include "glextensions.h" #include <QtWidgets> #include <QtOpenGL> #include "roundedbox.h" #include "gltrianglemesh.h" #include "trackball.h" #include "glbuffers.h" #include "qtbox.h" #define PI 3.14159265358979 class QMatrix4x4; class ParameterEdit : public QWidget { public: virtual void emitChange() = 0; }; class ColorEdit : public ParameterEdit { Q_OBJECT public: ColorEdit(QRgb initialColor, int id); QRgb color() const {return m_color;} void emitChange() override { emit colorChanged(m_color, m_id); } public slots: void editDone(); signals: void colorChanged(QRgb color, int id); protected: void mousePressEvent(QMouseEvent *event) override; void setColor(QRgb color); // also emits colorChanged() private: QGraphicsScene *m_dialogParentScene; QLineEdit *m_lineEdit; QFrame *m_button; QRgb m_color; int m_id; }; class FloatEdit : public ParameterEdit { Q_OBJECT public: FloatEdit(float initialValue, int id); float value() const {return m_value;} void emitChange() override { emit valueChanged(m_value, m_id); } public slots: void editDone(); signals: void valueChanged(float value, int id); private: QGraphicsScene *m_dialogParentScene; QLineEdit *m_lineEdit; float m_value; int m_id; }; class GraphicsWidget : public QGraphicsProxyWidget { public: GraphicsWidget() : QGraphicsProxyWidget(0, Qt::Window) {} protected: QVariant itemChange(GraphicsItemChange change, const QVariant &value) override; void resizeEvent(QGraphicsSceneResizeEvent *event) override; void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override; }; class TwoSidedGraphicsWidget : public QObject { Q_OBJECT public: TwoSidedGraphicsWidget(QGraphicsScene *scene); void setWidget(int index, QWidget *widget); QWidget *widget(int index); public slots: void flip(); protected slots: void animateFlip(); private: GraphicsWidget *m_proxyWidgets[2]; int m_current; int m_angle; // angle in degrees int m_delta; }; class RenderOptionsDialog : public QDialog { Q_OBJECT public: RenderOptionsDialog(); int addTexture(const QString &name); int addShader(const QString &name); void emitParameterChanged(); protected slots: void setColorParameter(QRgb color, int id); void setFloatParameter(float value, int id); signals: void dynamicCubemapToggled(int); void colorParameterChanged(const QString &, QRgb); void floatParameterChanged(const QString &, float); void textureChanged(int); void shaderChanged(int); void doubleClicked(); protected: void mouseDoubleClickEvent(QMouseEvent *event) override; QVector<QByteArray> m_parameterNames; QComboBox *m_textureCombo; QComboBox *m_shaderCombo; QVector<ParameterEdit *> m_parameterEdits; }; class ItemDialog : public QDialog { Q_OBJECT public: enum ItemType { QtBoxItem, CircleItem, SquareItem, }; ItemDialog(); public slots: void triggerNewQtBox(); void triggerNewCircleItem(); void triggerNewSquareItem(); signals: void doubleClicked(); void newItemTriggered(ItemDialog::ItemType type); protected: void mouseDoubleClickEvent(QMouseEvent *event) override; }; class Scene : public QGraphicsScene { Q_OBJECT public: Scene(int width, int height, int maxTextureSize); ~Scene(); void drawBackground(QPainter *painter, const QRectF &rect) override; public slots: void setShader(int index); void setTexture(int index); void toggleDynamicCubemap(int state); void setColorParameter(const QString &name, QRgb color); void setFloatParameter(const QString &name, float value); void newItem(ItemDialog::ItemType type); protected: void renderBoxes(const QMatrix4x4 &view, int excludeBox = -2); void setStates(); void setLights(); void defaultStates(); void renderCubemaps(); void mousePressEvent(QGraphicsSceneMouseEvent *event) override; void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override; void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override; void wheelEvent(QGraphicsSceneWheelEvent * event) override; private: void initGL(); QPointF pixelPosToViewPos(const QPointF& p); QTime m_time; int m_lastTime; int m_mouseEventTime; int m_distExp; int m_frame; int m_maxTextureSize; int m_currentShader; int m_currentTexture; bool m_dynamicCubemap; bool m_updateAllCubemaps; RenderOptionsDialog *m_renderOptions; ItemDialog *m_itemDialog; QTimer *m_timer; GLRoundedBox *m_box; TrackBall m_trackBalls[3]; QVector<GLTexture *> m_textures; GLTextureCube *m_environment; GLTexture3D *m_noise; GLRenderTargetCube *m_mainCubemap; QVector<GLRenderTargetCube *> m_cubemaps; QVector<QGLShaderProgram *> m_programs; QGLShader *m_vertexShader; QVector<QGLShader *> m_fragmentShaders; QGLShader *m_environmentShader; QGLShaderProgram *m_environmentProgram; }; #endif

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