glViewer Class Reference

#include <OpenFlipper/widgets/glWidget/QtBaseViewer.hh>

Collaboration diagram for glViewer:

Public Types
enum	ProjectionMode { ORTHOGRAPHIC_PROJECTION, PERSPECTIVE_PROJECTION }
	projection mode More...
enum	NavigationMode { NORMAL_NAVIGATION, FIRSTPERSON_NAVIGATION }
	Navigation mode. More...
enum	NormalsMode { DONT_TOUCH_NORMALS, NORMALIZE_NORMALS }
	Automatically normalize normals? More...
Public Slots
virtual void	updateGL ()
	Redraw scene. Triggers paint event for updating the view (cf. drawNow()).
virtual void	setHome ()
	set home position
virtual void	home ()
	go to home pos
virtual void	viewAll ()
	view the whole scene
virtual void	flyTo (const QPoint &_pos, bool _move_back)
	Fly to. Get closer if `_move_back=false,` get more distant else.
virtual void	flyTo (const QPoint &_pos)
	Fly to, get closer.
virtual void	flyFrom (const QPoint &_pos)
	Fly to, get more distant.
virtual void	flyTo (const ACG::Vec3d &_position, const ACG::Vec3d &_center, double _time=1000.0)
virtual void	perspectiveProjection ()
	set perspective view (projectionMode(PERSPECTIVE_PROJECTION))
virtual void	orthographicProjection ()
	set orthographic view (projectionMode(ORTHOGRAPHIC_PROJECTION))
virtual void	toggleProjectionMode ()
	toggle projection mode
virtual void	toggleNavigationMode ()
	toggle navigation mode
virtual void	setView (const ACG::GLMatrixd &_modelview, const ACG::GLMatrixd &_inverse_modelview)
	set view, used for synchronizing
void	actionPasteView ()
void	actionCopyView ()
Snapshots

virtual void	snapshot ()
virtual void	snapshot (QImage &_image, bool _offScreenRendering=false)
	Take a snapshot and store it in the given image.
Signals
void	functionMenuUpdate ()
void	statusMessage (const QString &message, int timeout=0)
void	projectionModeChanged (bool _ortho)
void	navigationModeChanged (bool _normal)
void	signalMouseEvent (QMouseEvent *, const std::string &)
void	signalMouseEvent (QMouseEvent *)
	This signal does not send the pick mode and is kept for compatibility.
void	signalWheelEvent (QWheelEvent *, const std::string &)
	Emitted in Pick mode. Uses pick mode.
void	signalMouseEventIdentify (QMouseEvent *)
void	signalSceneGraphChanged (ACG::SceneGraph::BaseNode *_root)
	scene graph has changed
void	signalMouseEventClick (QMouseEvent *, bool _double)
void	signalCustomContextMenuRequested (const QPoint &)
view handling

void	viewUpdated ()
	This signal is emitted when the scene is repainted due to any event.
void	viewChanged ()
	This signal is emitted whenever the view is changed by the user.
void	signalMakeActive ()
	make this widget active
Public Member Functions
	glViewer (QGraphicsScene _scene, QGLWidget _glWidget, Viewer::ViewerProperties &_properties, QGraphicsWidget *_parent=0)
virtual	~glViewer ()
	Destructor.
virtual QSize	sizeHint () const
virtual void	makeCurrent ()
	Makes this widget the current widget for OpenGL operations.
virtual void	swapBuffers ()
	Swaps the screen contents with the off-screen buffer.
void	lockProjectionUpdate (void)
	Lock update of projection matrix.
void	unlockProjectionUpdate (void)
	Unlock update of projection matrix.
void	trackMouse (bool _track)
	Enable/disable mouse tracking (move events with no button press).
void	sceneGraph (ACG::SceneGraph::BaseNode *_root, const bool _resetTrackBall=false)
void	projectionMode (ProjectionMode _p)
	Changes the projection mode and updates the projection matrix.
ProjectionMode	projectionMode () const
	get current projection mode
void	navigationMode (NavigationMode _n)
	Changes the navigation mode.
NavigationMode	navigationMode () const
	get current navigation mode
void	setScenePos (const ACG::Vec3d &_center, double _radius, const bool _resetTrackBall=false)
void	setSceneCenter (const ACG::Vec3d &_center)
void	setTrackBallCenter (const ACG::Vec3d &_center)
	Set Trackball Center point of scene.
const ACG::Vec3d	trackBallCenter ()
	Get Trackball Center point of scene.
const ACG::Vec3d &	scene_center () const
double	scene_radius () const
void	viewingDirection (const ACG::Vec3d &_dir, const ACG::Vec3d &_up)
	set the viewing direction
void	normalsMode (NormalsMode _mode)
	set treatment of normals
NormalsMode	normalsMode () const
	get treatment of normals
ACG::GLMatrixd &	light_matrix ()
	get light rotation matrix
void	rotate_lights (ACG::Vec3d &_axis, double _angle)
	rotete light sources
void	update_lights ()
	update light position
void	draw_lights ()
void	copyToImage (QImage &_image, GLenum _buffer=GL_BACK)
	copy current framebuffer to an QImage
void	copyToImage (QImage &_image, unsigned int _left, unsigned int _top, unsigned int _width, unsigned int _height, GLenum _buffer)
	copy current framebuffer to an QImage
unsigned int	glWidth () const
	get width of QGLWidget
unsigned int	glHeight () const
	get height of QGLWidget
QSize	glSize () const
	get size of QGLWIdget
QPoint	glMapFromGlobal (const QPoint &_pos) const
	map global to glarea coords
QPoint	glMapToGlobal (const QPoint &_pos) const
	map glarea coords to global coords
void	encodeView (QString &_view)
	convert current view to text representation
bool	decodeView (const QString &_view)
void	initModelviewMatrix ()
	initialize modelview matrix to identity
void	grabGLArea ()
void	releaseGLArea ()
void	drawBlendedObjects (bool _status)
	One or two pass Drawing.
void	translate (const ACG::Vec3d &trans)
	translate the scene and update modelview matrix
void	rotate (const ACG::Vec3d &axis, double angle)
	rotate the scene (around its center) and update modelview matrix
void	rotate (const ACG::Vec3d &axis, double angle, const ACG::Vec3d &_center)
	rotate the scene and update modelview matrix
void	setCursorPainter (CursorPainter *_cursorPainter)
	sets the current cursor painter
void	updateCursorPosition (QPointF _scenePos)
	will be called from CursorPainter to inform the viewer that the cursor position changed
void	moveForward ()
	First person navigation: Move forward.
void	moveBack ()
	First person navigation: Move back.
void	strafeLeft ()
	First person navigation: Strafe left.
void	strafeRight ()
	First person navigation: Strafe Right.
Protected Slots
virtual void	slotWheelX (double _dAngle)
	process signals from wheelX_
virtual void	slotWheelY (double _dAngle)
	process signals from wheelX_
virtual void	slotWheelZ (double _dist)
	process signals from wheelZ_
virtual void	cleanupEventFilter ()
	correct ??? (same function as in qt src)
Protected Member Functions
virtual void	initializeGL ()
	initialize OpenGL states
virtual void	paintGL ()
	draw the scene. Triggered by updateGL().
virtual void	resizeEvent (QGraphicsSceneResizeEvent *_e)
	handle resize events
virtual void	moveEvent (QGraphicsSceneMoveEvent *_e)
	handle move events
virtual void	mousePressEvent (QGraphicsSceneMouseEvent *_event)
	handle mouse press events
virtual void	mouseDoubleClickEvent (QGraphicsSceneMouseEvent *_event)
	handle mouse double click events
virtual void	mouseMoveEvent (QGraphicsSceneMouseEvent *_event)
	handle mouse move events
virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *_event)
	handle mouse release events
virtual void	wheelEvent (QGraphicsSceneWheelEvent *_event)
	handle mouse wheel events
virtual void	contextMenuEvent (QGraphicsSceneContextMenuEvent *_e)
	handle mouse press events
void	viewMouseEvent (QMouseEvent *_event)
	specialized viewer: hande mouse events
void	viewWheelEvent (QWheelEvent *_event)
	specialized viewer: handle wheel events
void	viewKeyEvent (QKeyEvent *_event)
	specialized viewer: hande key events
void	lightMouseEvent (QMouseEvent *)
	optional: hande mouse events to rotate light
void	updateProjectionMatrix ()
	updates projection matrix
Protected Attributes
ACG::Vec3d	scene_center_
ACG::Vec3d	trackball_center_
double	scene_radius_
double	trackball_radius_
GLdouble	orthoWidth_
GLdouble	near_
GLdouble	far_
GLdouble	fovy_
bool	isRotating_
bool	lookAround_
Private Slots
void	slotClickTimeout ()
	Handle click timeout.
Private Member Functions
	glViewer (const glViewer &)
	Copy constructor. Never used!
glViewer &	operator= (const glViewer &)
	Assignment operator. Never used!
void	createWidgets ()
void	drawScene ()
void	drawScene_mono ()
void	drawScene_stereo ()
void	drawScene_glStereo ()
void	drawScene_anaglyphStereo ()
void	drawScene_customAnaglyphStereo ()
void	updateCustomAnaglyphStereo ()
void	finiCustomAnaglyphStereo ()
void	drawScenePhilipsStereo ()
Private Attributes
ACG::Vec3d	home_center_
double	home_radius_
ACG::GLMatrixd	home_modelview_
ACG::GLMatrixd	home_inverse_modelview_
double	homeOrthoWidth_
ACG::GLMatrixd	light_matrix_
NormalsMode	normalsMode_
ProjectionMode	projectionMode_
NavigationMode	navigationMode_
bool	trackMouse_
bool	glareaGrabbed_
double	frame_time_
ACG::SceneGraph::BaseNode *	sceneGraphRoot_
bool	projectionUpdateLocked_
bool	blending_
QGraphicsScene *	glScene_
QGLWidget *	glWidget_
QtGLViewerLayout *	glBaseLayout_
std::vector< QAction * >	drawMenuActions_
QTime	redrawTime_
CursorPainter *	cursorPainter_
ACG::Vec3d	cursorPoint3D_
bool	cursorPositionValid_
Friends
class	QtGLGraphicsScene
class	SimpleGLGraphicsScene
class	QtGLGraphicsView
Merge from examiner

QPoint	lastPoint2D_
ACG::Vec3d	lastPoint3D_
bool	lastPoint_hitSphere_
bool	allowRotation_
ACG::Vec3d	lastRotationAxis_
double	lastRotationAngle_
QTime	lastMoveTime_
QTimer *	timer_
QTimer	clickTimer_
QTime	clickTime_
QMouseEvent	clickEvent_
void	allowRotation (bool _mode)
	Lock scene rotation.
bool	allowRotation ()
void	slotAnimation ()
bool	mapToSphere (const QPoint &_p, ACG::Vec3d &_result) const
	virtual trackball: map 2D screen point to unit sphere
void	handleFirstPersonNavigation (QMouseEvent *_event)
	Navigate through scene if first person mode has been selected.
void	handleNormalNavigation (QMouseEvent *_event)
	Navigate through scene if normal mode has been selected.
Wheels

ACG::QtWidgets::QtWheel *	wheelX_
ACG::QtWidgets::QtWheel *	wheelY_
ACG::QtWidgets::QtWheel *	wheelZ_
bool	wheelsVisible ()
void	slotShowWheels ()
void	slotHideWheels ()
Stereo

bool	stereo_
int	agTexWidth_
int	agTexHeight_
GLuint	agTexture_ [2]
GLuint	agProgram_
bool	customAnaglyphSupported_
virtual void	setStereoMode (bool _b)
	enable/disable stereo mode
Picking

QGLFramebufferObject *	pickCache_
	Framebuffer object that holds the pick cache.
bool	updatePickCache_
	Should the pick cache be updated.
ACG::SceneGraph::PickTarget	pickCacheTarget_
	Pick target stored in pick cache.
bool	pickCacheSupported_
	Is pick caching supported.
bool	pick (ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, unsigned int &_nodeIdx, unsigned int &_targetIdx, ACG::Vec3d *_hitPointPtr=0)
bool	pick_region (ACG::SceneGraph::PickTarget _pickTarget, const QRegion &_region, QList< QPair< unsigned int, unsigned int > > &_list)
bool	fast_pick (const QPoint &_mousePos, ACG::Vec3d &_hitPoint)
int	pickColor (ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, unsigned int &_nodeIdx, unsigned int &_targetIdx, ACG::Vec3d *_hitPointPtr=0)
	pick using colors
bool	pickGL (ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, unsigned int &_nodeIdx, unsigned int &_targetIdx, ACG::Vec3d *_hitPointPtr=0)
	pick using selection buffer
int	pickFromCache (ACG::SceneGraph::PickTarget _pickTarget, const QPoint &_mousePos, unsigned int &_nodeIdx, unsigned int &_targetIdx, ACG::Vec3d *_hitPointPtr=0)
	pick from cache
Viewer State

Viewer::ViewerProperties &	properties_
	All properties for this viewer.
ACG::GLState *	glstate_
	Gl State.
bool	initialized_
	Have the viewer gl properties been initalized.
Viewer::ViewerProperties *	properties ()
	Returns a pointer to the Viewer Status.
void	slotPropertiesUpdated ()
void	applyProperties ()
Drag and Drop

virtual void	dragEnterEvent (QGraphicsSceneDragDropEvent *_e)
	drag & drop for modelview copying
virtual void	dropEvent (QGraphicsSceneDragDropEvent *_e)
	drag & drop for modelview copying
void	startDragEvent (QMouseEvent *_event)
void	dragEnterEvent (QDragEnterEvent *_event)
void	dropEvent (QDropEvent *_event)
Key handling

void	signalKeyPressEvent (QKeyEvent *)
	Key Event received.
virtual void	keyPressEvent (QKeyEvent *_event)
	Get keyPress events from the glArea.
virtual void	keyReleaseEvent (QKeyEvent *_event)
	Get keyRelease events from the glArea.
virtual bool	viewKeyPressEvent (QKeyEvent *)
	Handle key events in view mode.

Detailed Description

Base Viewer Widget: All viewers are derived from this one. Implements Mouse & Keyboard Events.

Definition at line 124 of file QtBaseViewer.hh.

Member Enumeration Documentation

enum glViewer::NavigationMode

Navigation mode.

Enumerator:

NORMAL_NAVIGATION	Normal mode.
FIRSTPERSON_NAVIGATION	First person mode.

Definition at line 194 of file QtBaseViewer.hh.

enum glViewer::NormalsMode

Automatically normalize normals?

Enumerator:

DONT_TOUCH_NORMALS	use provided normals as is
NORMALIZE_NORMALS	Automatically normalize normals. Input normals are not normalized or the transformation matrix does scaling or shearing.

Definition at line 245 of file QtBaseViewer.hh.

enum glViewer::ProjectionMode

projection mode

Enumerator:

ORTHOGRAPHIC_PROJECTION	orthographic
PERSPECTIVE_PROJECTION	perspective

Definition at line 188 of file QtBaseViewer.hh.

Constructor & Destructor Documentation

glViewer::glViewer	(	QGraphicsScene *	_scene,
		QGLWidget *	_glWidget,
		Viewer::ViewerProperties &	_properties,
		QGraphicsWidget *	_parent = `0`
	)

Create a glViewer.

Parameters:

	_parent	parent widget
	_name	name (qt internal, qt debugging)
	_properties	viewerOptions controlled by PluginFunctions
	_statusBar	pointer to an existing status bar for this widget, if `statusBar==0` then a private status bar will be created
	_format	OpenGL context settings, will be passed to glarea()

Definition at line 133 of file QtBaseViewer.cc.

References glstate_, ACG::Matrix4x4T< Scalar >::identity(), NORMAL_NAVIGATION, NORMALIZE_NORMALS, PERSPECTIVE_PROJECTION, properties_, setHome(), slotClickTimeout(), and slotPropertiesUpdated().

Member Function Documentation

void glViewer::applyProperties ( ) [private]

This will apply all properties without redrawing You have to set the context yourself!

Definition at line 2099 of file QtBaseViewer.cc.

References ACG::GLState::allow_multisampling(), Viewer::ViewerProperties::backFaceCulling(), Viewer::ViewerProperties::backgroundColor(), glstate_, Viewer::ViewerProperties::isCCWFront(), Viewer::ViewerProperties::multisampling(), properties_, ACG::GLState::set_clear_color(), ACG::GLState::set_twosided_lighting(), and Viewer::ViewerProperties::twoSidedLighting().

Referenced by initializeGL(), paintGL(), and slotPropertiesUpdated().

bool glViewer::decodeView ( const QString & _view )

Decode and apply text representation of view encoded by encodeView(). If _view was successfully decoded it will immediately be applied and true is returned, false is returned else.

Definition at line 1203 of file QtBaseViewer.cc.

References glstate_, makeCurrent(), projectionMode(), ACG::GLState::set_modelview(), and updateGL().

void glViewer::dragEnterEvent ( QDragEnterEvent * _event ) [signal]

Signal is emitted only if in externalDragMode ( see setExternalDrag ) It will be send if a drag enters the gl widget.

void glViewer::dropEvent ( QDropEvent * _event ) [signal]

Signal is emitted only if in externalDragMode ( see setExternalDrag ) It will be send if a drop occurs in the gl widget.

bool glViewer::fast_pick	(	const QPoint &	_mousePos,
		ACG::Vec3d &	_hitPoint
	)

get the coordinates of the picked point by z-buffer re-projection

Parameters:

	_mousePos	The position to pick
	_hitPoint	The point returned by the reprojection

Returns:: Successfull?

Definition at line 652 of file QtBaseViewerPicking.cc.

References glHeight(), Viewer::ViewerProperties::glState(), makeCurrent(), properties_, and ACG::GLState::unproject().

Referenced by handleNormalNavigation().

void glViewer::flyTo	(	const ACG::Vec3d &	_position,
		const ACG::Vec3d &	_center,
		double	_time = `1000.0`
	)			`[virtual, slot]`

Fly to point and set new viewing direction (animated).

Parameters:

	_position	New viewer position ( the new eye point of the viewer )
	_center	The new scene center ( the point we are looking at )
	_time	Animation time in ms

Definition at line 847 of file QtBaseViewer.cc.

References glstate_, makeCurrent(), ACG::GLState::modelview(), rotate(), translate(), updateGL(), and updatePickCache_.

void glViewer::flyTo	(	const QPoint &	_pos,
		bool	_move_back
	)			`[virtual, slot]`

Fly to. Get closer if _move_back=false, get more distant else.

Todo:: : Translate view such that hitpoint is in center of viewport

Definition at line 806 of file QtBaseViewer.cc.

References ACG::GLState::eye(), glstate_, makeCurrent(), PERSPECTIVE_PROJECTION, pick(), ACG::SceneGraph::PICK_ANYTHING, updateGL(), updateProjectionMatrix(), and viewChanged().

Referenced by handleFirstPersonNavigation(), and handleNormalNavigation().

virtual void glViewer::keyPressEvent ( QKeyEvent * _event ) [inline, protected, virtual]

Get keyPress events from the glArea.

This function is called by the internal gl widget when receiving a key press event.

Definition at line 700 of file QtBaseViewer.hh.

virtual void glViewer::keyReleaseEvent ( QKeyEvent * _event ) [inline, protected, virtual]

Get keyRelease events from the glArea.

This function is called by the internal gl widget when receiving a key release event. Here these events are simply passed to the parent widget.

Definition at line 708 of file QtBaseViewer.hh.

bool glViewer::pick	(	ACG::SceneGraph::PickTarget	_pickTarget,
		const QPoint &	_mousePos,
		unsigned int &	_nodeIdx,
		unsigned int &	_targetIdx,
		ACG::Vec3d *	_hitPointPtr = `0`
	)

Apply pick action.
Information about the picked primitive is stored in the provided pointers. No information is stored if 0-pointers are given. Resulting values are defined only if true has been returned!

Parameters:

	_pickTarget	Select what should be picked: Faces/Vertices/...
	_mousePos	The position to be used for picking
	_nodeIdx	If picking is successfull this will contain the id of the scenegraph node picked.
	_targetIdx	Special index defined by the picked Node. E.g. Facehandle/VertexHandle/.. for MeshNodes
	_hitPointPtr	Pointer to 3D point from picking

Returns:: Successfull?

Definition at line 71 of file QtBaseViewerPicking.cc.

References pickColor(), pickFromCache(), and pickGL().

Referenced by flyTo(), and updateCursorPosition().

bool glViewer::pick_region	(	ACG::SceneGraph::PickTarget	_pickTarget,
		const QRegion &	_region,
		QList< QPair< unsigned int, unsigned int > > &	_list
	)

Apply pick action.
Picks all objects in the given Region. Information about the picked primitives is stored in the provided list. Resulting values are defined only if true has been returned!

Parameters:

	_pickTarget	Select what should be picked: Faces/Vertices/...
	_region	Area for picking
	_list	List of found scenegraph objects (node/target pairs)

Returns:: Successfull?

Definition at line 510 of file QtBaseViewerPicking.cc.

References ACG::GLState::clear_color(), Viewer::ViewerProperties::drawMode(), ACG::Matrix4x4T< Scalar >::get_raw_data(), glHeight(), Viewer::ViewerProperties::glState(), glWidth(), makeCurrent(), ACG::GLState::modelview(), ACG::GLState::pick_color_to_stack(), ACG::GLState::pick_error(), ACG::GLState::pick_init(), pickCache_, pickCacheSupported_, pickCacheTarget_, ACG::GLState::projection(), properties_, ACG::GLState::set_clear_color(), ACG::SceneGraph::traverse(), and updatePickCache_.

const ACG::Vec3d& glViewer::scene_center ( ) const [inline]

Get scene's center

See also:: setScenePos()

Definition at line 235 of file QtBaseViewer.hh.

double glViewer::scene_radius ( ) const [inline]

Get scene's radius

See also:: setScenePos()

Definition at line 239 of file QtBaseViewer.hh.

void glViewer::sceneGraph	(	ACG::SceneGraph::BaseNode *	_root,
		const bool	_resetTrackBall = `false`
	)

Set scene graph. Sets the scene graph to the the graph rooted at _root. Recomputes Scene center and resets the trackball center if specified. The sceneGraphToched() signal will be emitted (even if _root does not actually change).

Definition at line 259 of file QtBaseViewer.cc.

References ACG::SceneGraph::BoundingBoxAction::bbMax(), ACG::SceneGraph::BoundingBoxAction::bbMin(), setScenePos(), signalSceneGraphChanged(), ACG::SceneGraph::traverse(), and updateGL().

Referenced by CoreWidget::CoreWidget(), initializeGL(), and viewAll().

void glViewer::setSceneCenter ( const ACG::Vec3d & _center )

Set new center point of scene

Definition at line 423 of file QtBaseViewer.cc.

void glViewer::setScenePos	(	const ACG::Vec3d &	_center,
		double	_radius,
		const bool	_resetTrackBall = `false`
	)

Sets the center and dimension of the whole scene. This point is used as fixpoint for rotations and to set the eye point far enough from the scene so that the whole scene is visible.

Definition at line 396 of file QtBaseViewer.cc.

References glstate_, ACG::GLState::modelview(), updateGL(), updateProjectionMatrix(), and viewChanged().

Referenced by sceneGraph().

void glViewer::setTrackBallCenter ( const ACG::Vec3d & _center )

Set Trackball Center point of scene.

The scene is rotated around the trackball center when using the mouse

Definition at line 430 of file QtBaseViewer.cc.

void glViewer::signalCustomContextMenuRequested ( const QPoint & ) [signal]

If popups are disabled context menu mode is set to custom Menu and the signal is passed from the QGLWidget to this signal. You can use mapToGlobal for mapping this point to global coords.

Referenced by contextMenuEvent().

void glViewer::signalKeyPressEvent ( QKeyEvent * ) [signal]

Key Event received.

This signal is emitted if a Key press event is received which is not handled by the widget itself. If internal key handling is disabled the events are passed to the parent of this widget.

void glViewer::signalMouseEvent	(	QMouseEvent *	,
		const std::string &
	)			`[signal]`

A signal for giving mouse events to the application. This is done if the Pick-Button (top-most button of the toolbar) is activated. Connect to this signal to implement application specific handling of mouse events.
Notes:

You have to test for the QMouseEvent::type() of the event yourself (press/release/move)!
signalMouseEventIdentify() is emitted on button press if actionMode()==Question.

Referenced by mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(), and mouseReleaseEvent().

void glViewer::signalMouseEventClick	(	QMouseEvent *	,
		bool	_double
	)			`[signal]`

Emitted if a (double) mouse click is performed in actionMode()==ExamineMode

Referenced by mouseDoubleClickEvent(), and slotClickTimeout().

void glViewer::signalMouseEventIdentify ( QMouseEvent * ) [signal]

Emitted instead o signalMouseEvent() if actionMode()==Question and _event is a mouse press event.

Referenced by mouseDoubleClickEvent(), mouseMoveEvent(), mousePressEvent(), and mouseReleaseEvent().

void glViewer::slotPropertiesUpdated ( ) [private, slot]

Called when properties for the viewer require a redraw The slot will trigger the redraw after setting the right properties.

Definition at line 2119 of file QtBaseViewer.cc.

References applyProperties(), makeCurrent(), and updateGL().

Referenced by glViewer().

void glViewer::snapshot ( ) [virtual, slot]

Trigger a snapshot and increase the snapshot counter. Save snapshot to file determined by snapshotBaseFileName() and the current snapshot counter. The back buffer will be saved.

Definition at line 2157 of file QtBaseViewer.cc.

References copyToImage(), glHeight(), glWidth(), makeCurrent(), paintGL(), properties_, Viewer::ViewerProperties::snapshotCounter(), and Viewer::ViewerProperties::snapshotName().

void glViewer::startDragEvent ( QMouseEvent * _event ) [signal]

Signal is emitted when Control modifier is pressed and mouse moded. It will only be emitted if in externalDragMode ( see setExternalDrag )

Referenced by mousePressEvent().

const ACG::Vec3d glViewer::trackBallCenter ( ) [inline]

Get Trackball Center point of scene.

The scene is rotated around the trackball center when using the mouse

Definition at line 230 of file QtBaseViewer.hh.

virtual bool glViewer::viewKeyPressEvent ( QKeyEvent * ) [inline, protected, virtual]

Handle key events in view mode.

This funtion is called by the BaseViewer if a key press event occured in view mode. This function has to be implemented by every viewer!

Returns:: If the derived class handled the event it has to return true otherwise false

Definition at line 717 of file QtBaseViewer.hh.

The documentation for this class was generated from the following files:

widgets/glWidget/QtBaseViewer.hh
widgets/glWidget/QtBaseViewer.cc
widgets/glWidget/QtBaseViewerPicking.cc
widgets/glWidget/QtBaseViewerStereo.cc

glViewer Class Reference

Public Types

Public Slots

Signals

Public Member Functions

Protected Slots

Protected Member Functions

Protected Attributes

Private Slots

Private Member Functions

Private Attributes

Friends

Merge from examiner

Wheels

Stereo

Picking

Viewer State

Drag and Drop

Key handling

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation