Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 589 insertions, 0 deletions

diff --git a/kpovmodeler/pmglview.h b/kpovmodeler/pmglview.h
new file mode 100644
index 00000000..b33eeb2b
--- /dev/null
+++ b/kpovmodeler/pmglview.h
@@ -0,0 +1,589 @@
+//-*-C++-*-
+/*
+**************************************************************************
+                                 description
+                             --------------------
+    copyright            : (C) 2000-2003 by Andreas Zehender
+    email                : [email protected]
+**************************************************************************
+
+**************************************************************************
+*                                                                        *
+*  This program is free software; you can redistribute it and/or modify  *
+*  it under the terms of the GNU General Public License as published by  *
+*  the Free Software Foundation; either version 2 of the License, or     *
+*  (at your option) any later version.                                   *
+*                                                                        *
+**************************************************************************/
+
+
+#ifndef PMGLVIEW_H
+#define PMGLVIEW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <qwidget.h>
+#include <qpoint.h>
+#include <qdatetime.h>
+#include <qtimer.h>
+#include <qpixmap.h>
+
+#include "pmviewbase.h"
+#include "pmviewfactory.h"
+#include "pmcontrolpoint.h"
+#include "pmvector.h"
+#include "pmmatrix.h"
+#include "pmobjectaction.h"
+
+const int controlPointSize = 7;
+
+class PMObject;
+class PMPart;
+class PMCamera;
+class KConfig;
+class QComboBox;
+
+/**
+ * Widget for rendering the scene with OpenGL
+ */
+class PMGLView : public PMViewBase
+{
+   Q_OBJECT
+public:
+   /**
+    * Type of the view
+    */
+   enum PMViewType { PMViewPosX, PMViewNegX, PMViewPosY, PMViewNegY,
+                     PMViewPosZ, PMViewNegZ, PMViewCamera };
+   /**
+    * Constructor
+    */
+   PMGLView( PMPart* part, PMViewType t,
+             QWidget* parent = 0, const char* name = 0, WFlags f = 0 );
+   /**
+    * Destructor
+    */
+   ~PMGLView( );
+
+   /** */
+   virtual QString viewType( ) const { return QString( "glview" ); }
+   /** */
+   virtual QString description( ) const;
+   /** */
+   virtual void restoreViewConfig( PMViewOptions* );
+   /** */
+   virtual void saveViewConfig( PMViewOptions* ) const;
+
+   /**
+    * Enables/disables translating the view with the mouse
+    */
+   void enableTranslateMode( bool yes = true );
+   /**
+    * Enables/disables scaling the view with the mouse
+    */
+   void enableScaleMode( bool yes = true );
+
+   /**
+    * Returns true if the opengl projection is up to date
+    */
+   bool isProjectionUpToDate( ) const { return m_projectionUpToDate; }
+   /**
+    * Sets the projection up to date flag
+    */
+   void setProjectionUpToDate( bool yes ) { m_projectionUpToDate = yes; }
+
+   /**
+    * Sets the scale
+    */
+   void setScale( double scale );
+   /**
+    * Returns the scale
+    */
+   double scale( ) const { return m_dScale; }
+   /**
+    * Sets the views translation in x direction
+    */
+   void setTranslationX( double d );
+   /**
+    * Returns the views translation in x direction
+    */
+   double translationX( ) const { return m_dTransX; }
+   /**
+    * Sets the views translation in y direction
+    */
+   void setTranslationY( double d );
+   /**
+    * Returns the views translation in y direction
+    */
+   double translationY( ) const { return m_dTransY; }
+
+   /**
+    * Returns the 2D control points position in the view
+    */
+   const QPtrList<PMVector>& controlPointsPosition( ) const
+   {
+      return m_controlPointsPosition;
+   }
+   /**
+    * Returns the last right mouse click position
+    */
+   PMVector contextClickPosition( ) const { return m_contextClickPosition; }
+
+   /**
+    * Returns the view type
+    */
+   PMViewType type( ) const { return m_type; }
+   /**
+    * Sets the view type
+    */
+   void setType( PMViewType t );
+   /**
+    * Sets the camera
+    */
+   void setCamera( PMCamera* c );
+   /**
+    * Returns the camera
+    */
+   PMCamera* camera( ) const { return m_pCamera; }
+
+   /**
+    * Saves the configuration
+    */
+   static void saveConfig( KConfig* cfg );
+   /**
+    * Restores the configuration
+    */
+   static void restoreConfig( KConfig* cfg );
+
+   /**
+    * Returns true if the glx stuff was initialized successfully
+    */
+   bool isValid( ) const;
+   /**
+    * Sets this view as the current rendering view
+    */
+   void makeCurrent( );
+   /**
+    * Swaps the opengl buffers
+    */
+   void swapBuffers( );
+
+   /**
+    * Returns the view type as string
+    */
+   static QString viewTypeAsString( PMViewType t );
+   /**
+    * Sets the direct rendering flag
+    */
+   static void enableDirectRendering( bool yes ) { s_bDirect = yes; }
+   /**
+    * Returns the direct rendering flag
+    */
+   static bool isDirectRenderingEnabled( ) { return s_bDirect; }
+public slots:
+   /**
+    * Sets the view normal vector to the positive x-axes
+    */
+   void slotSetTypePosX( ) { setType( PMViewPosX ); }
+   /**
+    * Sets the view normal vector to the negative x-axes
+    */
+   void slotSetTypeNegX( ) { setType( PMViewNegX ); }
+   /**
+    * Sets the view normal vector to the positive y-axes
+    */
+   void slotSetTypePosY( ) { setType( PMViewPosY ); }
+   /**
+    * Sets the view normal vector to the negative y-axes
+    */
+   void slotSetTypeNegY( ) { setType( PMViewNegY ); }
+   /**
+    * Sets the view normal vector to the positive z-axes
+    */
+   void slotSetTypePosZ( ) { setType( PMViewPosZ ); }
+   /**
+    * Sets the view normal vector to the negative z-axes
+    */
+   void slotSetTypeNegZ( ) { setType( PMViewNegZ ); }
+
+   /**
+    * Called when an object is changed.
+    * @see PMPart::objectChanged( )
+    */
+   void slotObjectChanged( PMObject* obj, const int mode, QObject* sender );
+   /**
+    * Restarts rendering
+    */
+   void slotRefresh( );
+   /**
+    * Clears all data
+    */
+   void slotClear( );
+   /**
+    * Stops rendering
+    */
+   void slotStopRendering( );
+   /**
+    * Repaints the view if it is a camera view
+    */
+   void slotActiveRenderModeChanged( );
+
+   /**
+    * Connected to the render manager
+    */
+   void slotRenderingStarted( PMGLView* view );
+   /**
+    * Connected to the render manager
+    */
+   void slotAboutToUpdate( PMGLView* view );
+   /**
+    * Connected to the render manager
+    */
+   void slotRenderingFinished( PMGLView* view );
+
+protected slots:
+   /**
+    * Sets the view type to camera view
+    */
+   void slotCameraView( int id );
+   /**
+    * Called when an object action was selected in the context menu
+    */
+   void slotObjectAction( int id );
+   /**
+    * Called when a control point was selected in the context menu
+    */
+   void slotControlPoint( int id );
+   /**
+    * Aligns the selected control points to the grid
+    */
+   void slotSnapToGrid( );
+
+   void slotMouseChangeTimer( );
+   void slotAutoScroll( );
+
+signals:
+   /**
+    * Emitted when rendering has to be restarted
+    */
+   void refresh( PMGLView* w );
+   /**
+    * Emitted when an object is changed
+    */
+   void objectChanged( PMObject* obj, const int mode, QObject* sender );
+   /**
+    * Emitted when the mouse is over a control point
+    */
+   void controlPointMessage( const QString& msg );
+   /**
+    * Emitted in the destructor
+    */
+   void destroyed( PMGLView* v );
+   /**
+    * Emitted when the view type changes
+    */
+   void viewTypeChanged( const QString& str );
+
+protected:
+   /**
+    * Initializes the glx stuff
+    */
+   virtual void initializeGL( );
+   /** */
+   virtual void resizeEvent( QResizeEvent* e );
+   /** */
+   virtual void paintEvent( QPaintEvent* e );
+   /** */
+   virtual void mousePressEvent( QMouseEvent* e );
+   /** */
+   virtual void mouseReleaseEvent( QMouseEvent* e );
+   /** */
+   virtual void mouseMoveEvent( QMouseEvent* e );
+   /** */
+   virtual void keyPressEvent( QKeyEvent* e );
+   /**
+    * Event to zoom in / zoom out the viewport by mouse wheel
+    */
+   virtual void wheelEvent( QWheelEvent* e );
+
+private:
+   /**
+    * Updates the control points
+    */
+   void updateControlPoints( );
+   /**
+    * Recalculates the position of the control points on the screen
+    */
+   void recalculateControlPointPosition( );
+   /**
+    * Recalculates m_controlPointsTransformation and
+    * m_inversePointsTransformation
+    */
+   void recalculateTransformations( );
+   /**
+    * Returns the mouse 3D position, when the control point cp is selected
+    *
+    * x and y are the screen coordinates of the mouse.
+    */
+   PMVector mousePosition( PMControlPoint* cp, int x, int y );
+   /**
+    * Checks if a control point is under the mouse
+    */
+   void checkUnderMouse( int x, int y );
+   /**
+    * Repaints the view
+    */
+   void repaint( bool graphicalChange = false );
+   /**
+    * Starts a graphical change
+    */
+   void startChange( const QPoint& mousePos );
+   /**
+    * Graphical Change
+    */
+   void graphicalChange( const QPoint& mousePos );
+   /**
+    * Selects/deselecs the control point. If cp is 0, all control points are
+    * selected/deselected.
+    */
+   void selectControlPoint( PMControlPoint* cp, bool select, bool deselectOthers = true );
+   /**
+    * Invalidates the projection and repaints the view
+    */
+   void invalidateProjection( bool graphicaChange = false );
+
+   /**
+    * Starts multiple selection mode
+    */
+   void startSelection( );
+   /**
+    * Restores the widget under the selection rect
+    */
+   void restoreSelectionBox( );
+   /**
+    * Saves the widget under the selection rect
+    */
+   void saveSelectionBox( );
+   /**
+    * Paints the selection box
+    */
+   void paintSelectionBox( );
+   /**
+    * Calculates the selection box
+    */
+   void calculateSelectionBox( int& sx, int& sy, int& ex, int& ey, int& w, int& h );
+
+   double screenToInternalX( int x ) const;
+   double screenToInternalY( int y ) const;
+
+   /**
+    * Returns the top level object for rendering (a declaration or the scene)
+    */
+   PMObject* topLevelRenderingObject( PMObject* obj ) const;
+   /**
+    * Displays the context menu
+    */
+   void contextMenu( );
+
+   /**
+    * Type of the view (camera, xy, ... )
+    */
+   PMViewType m_type;
+   /**
+    * Pointer to the part
+    */
+   PMPart* m_pPart;
+   /**
+    * True if "scale view" is active
+    */
+   bool m_bScaleMode;
+   double m_scaleIntX, m_scaleIntY;
+   /**
+    * true if "translate view" is active
+    */
+   bool m_bTranslateMode;
+   /**
+     * True if "scale view" or "translate view" is active and the left
+     * mouse button is pressed.
+     */
+   bool m_bMousePressed;
+   /**
+    * MidButton pressed
+    */
+   bool m_bMidMousePressed;
+   /**
+    * True if a graphical change is active
+    */
+   bool m_bGraphicalChangeMode;
+   bool m_bMementoCreated;
+   /**
+    * The old mouse position
+    */
+   QPoint m_mousePos;
+   QPoint m_changeStartPos;
+   QPoint m_currentMousePos;
+   QTimer m_startTimer;
+   QTime m_changeStartTime;
+   bool m_bDeselectUnderMouse;
+   bool m_bSelectUnderMouse;
+
+   /**
+    * Member variables for multiple selection mode
+    */
+   QPixmap m_selectionPixmap[4];
+   QPoint m_selectionStart, m_selectionEnd;
+   bool m_bMultipleSelectionMode;
+   bool m_bSelectionStarted;
+
+   /**
+    * Member variables for autoscroll
+    */
+   bool m_bAutoScroll;
+   double m_autoScrollSpeed;
+   QTimer m_autoScrollTimer;
+   QTime m_lastAutoScrollUpdate;
+   int m_autoScrollDirectionX, m_autoScrollDirectionY;
+   /**
+    * Rendering
+    */
+   bool m_bAboutToUpdate;
+
+   /**
+    * Scale of the view
+    */
+   double m_dScale;
+   /**
+    * X-translation of the view
+    */
+   double m_dTransX;
+   /**
+    * Y-translation of the view
+    */
+   double m_dTransY;
+
+   /**
+    * Control points of the active object
+    */
+   PMControlPointList m_controlPoints;
+   /**
+    * Control point under the mouse
+    */
+   PMControlPoint* m_pUnderMouse;
+   /**
+    * Position of the control points on the screen
+    */
+   QPtrList<PMVector> m_controlPointsPosition;
+   /**
+    * Position of the last right mouse click
+    */
+   PMVector m_contextClickPosition;
+   /**
+    * Transformation of the control points
+    *
+    * Always m_viewTransformation * m_objectsTransformation.
+    */
+   PMMatrix m_controlPointsTransformation;
+   /**
+    * Inverse of m_controlPointsTransformation
+    */
+   PMMatrix m_inversePointsTransformation;
+   /**
+    * True if m_inversePointsTransformation is valid
+    */
+   bool m_bInverseValid;
+   /**
+    * Normal vector of the view
+    */
+   PMVector m_normal;
+   /**
+    * Transformation of the view (scale and translation)
+    */
+   PMMatrix m_viewTransformation;
+   /**
+    * Transformation of the active object
+    */
+   PMMatrix m_objectsTransformation;
+   /**
+    * The camera
+    */
+   PMCamera* m_pCamera;
+   PMObject* m_pActiveObject;
+   /**
+    * true if the opengl projection is up to date
+    */
+   bool m_projectionUpToDate;
+   int m_visibilityLevel;
+   /**
+    * The current object actions
+    */
+   QPtrList<PMObjectAction> m_objectActions;
+   static bool s_bDirect;
+};
+
+/**
+ * Options class for the opengl view
+ */
+class PMGLViewOptions : public PMViewOptions
+{
+public:
+   PMGLViewOptions( )
+   {
+      m_glViewType = PMGLView::PMViewPosX;
+   }
+   PMGLViewOptions( PMGLView::PMViewType t )
+   {
+      m_glViewType = t;
+   }
+   virtual PMViewOptions* copy( ) const { return new PMGLViewOptions( *this ); }
+   virtual QString viewType( ) const { return QString( "glview" ); }
+   PMGLView::PMViewType glViewType( ) const { return m_glViewType; }
+   void setGLViewType( PMGLView::PMViewType t ) { m_glViewType = t; }
+   virtual void loadData( QDomElement& e );
+   virtual void saveData( QDomElement& e );
+
+private:
+   PMGLView::PMViewType m_glViewType;
+};
+
+/**
+ * Factory class for 3d views
+ */
+class PMGLViewFactory : public PMViewTypeFactory
+{
+public:
+   PMGLViewFactory( ) { }
+   virtual QString viewType( ) const { return QString( "glview" ); }
+   virtual QString description( ) const;
+   virtual QString description( PMViewOptions* ) const;
+   virtual QString iconName( ) const { return QString( "pmglview" ); }
+   virtual PMViewBase* newInstance( QWidget* parent, PMPart* part ) const
+   {
+      return new PMGLView( part, PMGLView::PMViewPosX, parent );
+   }
+   virtual PMViewOptions* newOptionsInstance( ) const;
+   virtual PMViewOptionsWidget* newOptionsWidget( QWidget*, PMViewOptions* );
+};
+
+/**
+ * Configuration widget for the view layout settings dialog
+ */
+class PMGLViewOptionsWidget : public PMViewOptionsWidget
+{
+   Q_OBJECT
+public:
+   /**
+    * Default constructor
+    */
+   PMGLViewOptionsWidget( QWidget* parent, PMViewOptions* o );
+
+protected slots:
+   void slotGLViewTypeChanged( int );
+
+private:
+   PMGLViewOptions* m_pOptions;
+   QComboBox* m_pGLViewType;
+};
+
+#endif