3996aade01
git-svn-id: http://www.openmesh.org/svnrepo/OpenMesh/trunk@83 fdac6126-5c0c-442c-9429-916003d36597
165 lines
5.6 KiB
C++
165 lines
5.6 KiB
C++
//=============================================================================
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//
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// OpenMesh
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// Copyright (C) 2003 by Computer Graphics Group, RWTH Aachen
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// www.openmesh.org
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//
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//-----------------------------------------------------------------------------
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//
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// License
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation, version 2.1.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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//
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//-----------------------------------------------------------------------------
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//
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// $Revision$
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// $Date$
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//
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//=============================================================================
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#ifndef OPENMESHAPPS_QGLVIEWERWIDGET_HH
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#define OPENMESHAPPS_QGLVIEWERWIDGET_HH
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//== INCLUDES =================================================================
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#include <OpenMesh/Core/Geometry/VectorT.hh>
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#include <QGLWidget>
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#include <QMenu>
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#include <string>
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#include <vector>
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//== FORWARD DECLARATIONS =====================================================
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class QPopupMenu;
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//== CLASS DEFINITION =========================================================
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class QGLViewerWidget : public QGLWidget
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{
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Q_OBJECT
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public:
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// Default constructor.
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QGLViewerWidget( QWidget* _parent=0, const char* _name=0 );
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// Destructor.
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virtual ~QGLViewerWidget();
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/* Sets the center and size of the whole scene.
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The _center is used as fixpoint for rotations and for adjusting
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the camera/viewer (see view_all()). */
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void set_scene_pos( const OpenMesh::Vec3f& _center, float _radius );
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/* view the whole scene: the eye point is moved far enough from the
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center so that the whole scene is visible. */
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void view_all();
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/// add draw mode to popup menu
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void add_draw_mode(std::string _s);
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float radius() const { return radius_; }
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const OpenMesh::Vec3f& center() const { return center_; }
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const GLdouble* modelview_matrix() const { return modelview_matrix_; }
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const GLdouble* projection_matrix() const { return projection_matrix_; }
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void set_modelview_matrix(const GLdouble _modelview_matrix[16])
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{ memcpy(modelview_matrix_, _modelview_matrix, 16*sizeof(GLdouble)); }
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void set_projection_matrix(const GLdouble _projection_matrix[16])
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{ memcpy(projection_matrix_, _projection_matrix, 16*sizeof(GLdouble)); }
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float fovy() const { return 45.0f; }
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protected:
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// draw the scene: will be called by the painGL() method.
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virtual void draw_scene(const std::string& _draw_mode);
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double performance(void);
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private slots:
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// popup menu clicked
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void slotPopupMenu(int _id);
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private: // inherited
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// initialize OpenGL states (triggered by Qt)
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void initializeGL();
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// draw the scene (triggered by Qt)
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void paintGL();
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// handle resize events (triggered by Qt)
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void resizeGL( int w, int h );
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protected:
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// Qt mouse events
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virtual void mousePressEvent( QMouseEvent* );
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virtual void mouseReleaseEvent( QMouseEvent* );
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virtual void mouseMoveEvent( QMouseEvent* );
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virtual void wheelEvent( QWheelEvent* );
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virtual void keyPressEvent( QKeyEvent* );
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private:
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// updates projection matrix
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void update_projection_matrix();
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protected:
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// translate the scene and update modelview matrix
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void translate(const OpenMesh::Vec3f& _trans);
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// rotate the scene (around its center) and update modelview matrix
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void rotate(const OpenMesh::Vec3f& _axis, float _angle);
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OpenMesh::Vec3f center_;
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float radius_;
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GLdouble projection_matrix_[16],
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modelview_matrix_[16];
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// popup menu for draw mode selection
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QMenu* popup_menu_;
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unsigned int draw_mode_;
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unsigned int n_draw_modes_;
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std::vector<std::string> draw_mode_names_;
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// virtual trackball: map 2D screen point to unit sphere
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bool map_to_sphere(const QPoint& _point, OpenMesh::Vec3f& _result);
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QPoint last_point_2D_;
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OpenMesh::Vec3f last_point_3D_;
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bool last_point_ok_;
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};
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//=============================================================================
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#endif // OPENMESHAPPS_QGLVIEWERWIDGET_HH
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//=============================================================================
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