The SoGtkFlyViewer class implements controls for moving the camera in a "flying" motion. More...

#include <Inventor/Gtk/viewers/SoGtkFlyViewer.h>

Inheritance diagram for SoGtkFlyViewer:

Public Member Functions
	SoGtkFlyViewer (GtkWidget parent=NULL, const char name=NULL, SbBool embed=TRUE, SoGtkFullViewer::BuildFlag flag=BUILD_ALL, SoGtkViewer::Type type=BROWSER)

	~SoGtkFlyViewer ()

virtual void	resetToHomePosition (void)

virtual void	setCamera (SoCamera *camera)

virtual void	setCameraType (SoType type)

virtual void	setCursorEnabled (SbBool enable)

virtual void	setViewing (SbBool enable)

virtual void	viewAll (void)

Public Member Functions inherited from SoGtkConstrainedViewer
const SbVec3f &	getUpDirection (void) const

virtual void	saveHomePosition (void)

void	setUpDirection (const SbVec3f &dir)

Public Member Functions inherited from SoGtkFullViewer
void	addAppPushButton (GtkWidget *newButton)

int	findAppPushButton (GtkWidget *oldButton) const

GtkWidget *	getAppPushButtonParent (void) const

GtkWidget *	getRenderAreaWidget (void) const

void	insertAppPushButton (GtkWidget *newButton, int index)

SbBool	isDecoration (void) const

SbBool	isPopupMenuEnabled (void) const

int	lengthAppPushButton (void) const

void	removeAppPushButton (GtkWidget *oldButton)

virtual void	setComponentCursor (const SoGtkCursor &cursor)

void	setDecoration (const SbBool on)

void	setPopupMenuEnabled (const SbBool on)

Public Member Functions inherited from SoGtkViewer
void	addFinishCallback (SoGtkViewerCB func, void data=NULL)

void	addStartCallback (SoGtkViewerCB func, void data=NULL)

void	getAnaglyphStereoColorMasks (SbBool left[3], SbBool right[3])

SoGtkViewer::BufferType	getBufferingType (void) const

SoCamera *	getCamera (void) const

SoType	getCameraType (void) const

SoGtkViewer::DrawStyle	getDrawStyle (const SoGtkViewer::DrawType type) const

SoDirectionalLight *	getHeadlight (void) const

virtual SoNode *	getSceneGraph (void)

float	getSeekTime (void) const

float	getStereoOffset (void) const

SoGtkViewer::StereoType	getStereoType (void) const

const SbColor &	getWireframeOverlayColor (void) const

SbBool	isAutoClipping (void) const

SbBool	isCursorEnabled (void) const

SbBool	isDetailSeek (void) const

SbBool	isHeadlight (void) const

SbBool	isStereoViewing (void) const

SbBool	isViewing (void) const

void	removeFinishCallback (SoGtkViewerCB func, void data=NULL)

void	removeStartCallback (SoGtkViewerCB func, void data=NULL)

void	setAnaglyphStereoColorMasks (const SbBool left[3], const SbBool right[3])

void	setAutoClipping (SbBool enable)

void	setAutoClippingStrategy (const AutoClippingStrategy strategy, const float value=0.6f, SoGtkAutoClippingCB cb=NULL, void cbuserdata=NULL)

virtual void	setBufferingType (SoGtkViewer::BufferType type)

void	setDetailSeek (const SbBool enable)

virtual void	setDoubleBuffer (const SbBool enable)

virtual void	setDrawStyle (SoGtkViewer::DrawType type, SoGtkViewer::DrawStyle style)

virtual void	setHeadlight (SbBool enable)

virtual void	setSceneGraph (SoNode *root)

void	setSeekTime (const float seconds)

virtual void	setStereoOffset (const float dist)

SbBool	setStereoType (SoGtkViewer::StereoType s)

virtual void	setStereoViewing (SbBool enable)

void	setWireframeOverlayColor (const SbColor &color)

virtual void	toggleCameraType (void)

Public Member Functions inherited from SoGtkRenderArea
	SoGtkRenderArea (GtkWidget parent=NULL, const char name=NULL, SbBool embed=TRUE, SbBool mouseInput=TRUE, SbBool keyboardInput=TRUE)

	~SoGtkRenderArea ()

void	getAntialiasing (SbBool &smoothing, int &numPasses) const

const SbColor &	getBackgroundColor (void) const

int	getBackgroundIndex (void) const

SoGLRenderAction *	getGLRenderAction (void) const

int	getOverlayBackgroundIndex (void) const

SoGLRenderAction *	getOverlayGLRenderAction (void) const

SoNode *	getOverlaySceneGraph (void)

SoSceneManager *	getOverlaySceneManager (void) const

uint32_t	getRedrawPriority (void) const

SoSceneManager *	getSceneManager (void) const

SoGLRenderAction::TransparencyType	getTransparencyType (void) const

const SbViewportRegion &	getViewportRegion (void) const

SbBool	isAutoRedraw (void) const

SbBool	isClearBeforeOverlayRender (void) const

SbBool	isClearBeforeRender (void) const

SbBool	isClearZBufferBeforeRender (void) const

void	redrawOnSelectionChange (SoSelection *selection)

void	redrawOverlayOnSelectionChange (SoSelection *selection)

void	registerDevice (SoGtkDevice *device)

void	render (void)

void	renderOverlay (void)

void	scheduleOverlayRedraw (void)

void	scheduleRedraw (void)

SbBool	sendSoEvent (const SoEvent *event)

void	setAntialiasing (SbBool smoothing, int numPasses)

void	setAutoRedraw (SbBool enable)

void	setBackgroundColor (const SbColor &color)

void	setBackgroundIndex (int idx)

void	setClearBeforeOverlayRender (SbBool enable)

void	setClearBeforeRender (SbBool enable, SbBool zbEnable=TRUE)

void	setColorMap (int start, int num, const SbColor *colors)

void	setEventCallback (SoGtkRenderAreaEventCB func, void user=NULL)

void	setGLRenderAction (SoGLRenderAction *action)

void	setOverlayBackgroundIndex (int idx)

void	setOverlayColorMap (int start, int num, const SbColor *colors)

void	setOverlayGLRenderAction (SoGLRenderAction *action)

void	setOverlaySceneGraph (SoNode *scene)

void	setOverlaySceneManager (SoSceneManager *manager)

void	setRedrawPriority (uint32_t priority)

void	setSceneManager (SoSceneManager *manager)

void	setTransparencyType (SoGLRenderAction::TransparencyType type)

void	setViewportRegion (const SbViewportRegion &newRegion)

void	unregisterDevice (SoGtkDevice *device)

Public Member Functions inherited from SoGtkGLWidget
SbBool	getAccumulationBuffer (void) const

SbBool	getAlphaChannel (void) const

GtkWidget *	getGLWidget (void) const

void	getLineWidthLimits (SbVec2f &range, float &granularity)

GtkWidget *	getNormalWidget (void) const

unsigned long	getOverlayTransparentPixel (void)

GtkWidget *	getOverlayWidget (void) const

void	getPointSizeLimits (SbVec2f &range, float &granularity)

int	getSampleBuffers (void) const

SbBool	getStencilBuffer (void) const

SbBool	hasNormalGLArea (void) const

SbBool	hasOverlayGLArea (void) const

SbBool	isBorder (void) const

SbBool	isDoubleBuffer (void) const

SbBool	isDrawToFrontBufferEnable (void) const

SbBool	isOverlayRender (void) const

SbBool	isQuadBufferStereo (void) const

SbBool	isStealFocus (void) const

void	setAccumulationBuffer (const SbBool enable)

void	setAlphaChannel (const SbBool enable)

void	setBorder (const SbBool enable)

void	setDrawToFrontBufferEnable (const SbBool enable)

void	setOverlayRender (const SbBool onoff)

void	setQuadBufferStereo (const SbBool enable)

void	setSampleBuffers (const int numsamples)

void	setStealFocus (SbBool enable)

void	setStencilBuffer (const SbBool enable)

Public Member Functions inherited from SoGtkComponent
virtual	~SoGtkComponent ()

GtkWidget *	getBaseWidget (void) const

const char *	getClassName (void) const

const char *	getIconTitle (void) const

GtkWidget *	getParentWidget (void) const

GtkWidget *	getShellWidget (void) const

SbVec2s	getSize (void) const

const char *	getTitle (void) const

GtkWidget *	getWidget (void) const

const char *	getWidgetName (void) const

virtual void	hide (void)

SbBool	isFullScreen (void) const

SbBool	isTopLevelShell (void) const

SbBool	isVisible (void)

SbBool	setFullScreen (const SbBool onoff)

void	setIconTitle (const char *const title)

void	setSize (const SbVec2s size)

void	setTitle (const char *const title)

void	setWindowCloseCallback (SoGtkComponentCB const func, void const user=NULL)

virtual void	show (void)

Public Member Functions inherited from SoGtkObject
virtual SoType	getTypeId (void) const =0

SbBool	isOfType (SoType type) const

Protected Member Functions
	SoGtkFlyViewer (GtkWidget parent, const char const name, SbBool embed, SoGtkFullViewer::BuildFlag flag, SoGtkViewer::Type type, SbBool build)

virtual void	actualRedraw (void)

virtual void	afterRealizeHook (void)

virtual const char *	getDefaultIconTitle (void) const

virtual const char *	getDefaultTitle (void) const

virtual const char *	getDefaultWidgetName (void) const

virtual SbBool	processSoEvent (const SoEvent *const event)

virtual void	rightWheelMotion (float value)

virtual void	setSeekMode (SbBool enable)

Protected Member Functions inherited from SoGtkConstrainedViewer
	SoGtkConstrainedViewer (GtkWidget parent, const char const name, SbBool embed, SoGtkFullViewer::BuildFlag flag, SoGtkViewer::Type type, SbBool build)

	~SoGtkConstrainedViewer ()

virtual void	bottomWheelMotion (float value)

virtual void	changeCameraValues (SoCamera *camera)

void	checkForCameraUpConstrain (void)

void	findUpDirection (SbVec2s mouselocation)

virtual void	leftWheelMotion (float value)

virtual void	tiltCamera (float delta)

Protected Member Functions inherited from SoGtkFullViewer
	SoGtkFullViewer (GtkWidget parent, const char name, SbBool embed, BuildFlag flag, Type type, SbBool build)

	~SoGtkFullViewer ()

virtual void	bottomWheelFinish (void)

virtual void	bottomWheelStart (void)

GtkWidget *	buildAppButtons (GtkWidget *parent)

virtual GtkWidget *	buildBottomTrim (GtkWidget *parent)

virtual void	buildDecoration (GtkWidget *parent)

virtual GtkWidget *	buildLeftTrim (GtkWidget *parent)

virtual void	buildPopupMenu (void)

virtual GtkWidget *	buildRightTrim (GtkWidget *parent)

GtkWidget *	buildViewerButtons (GtkWidget *parent)

GtkWidget *	buildWidget (GtkWidget *parent)

virtual void	createViewerButtons (GtkWidget parent, SbPList buttonlist)

GtkWidget *	getBottomWheelLabelWidget (void) const

float	getBottomWheelValue (void) const

GtkWidget *	getLeftWheelLabelWidget (void) const

float	getLeftWheelValue (void) const

GtkWidget *	getRightWheelLabelWidget (void) const

const char *	getRightWheelString () const

float	getRightWheelValue (void) const

virtual void	leftWheelFinish (void)

virtual void	leftWheelStart (void)

virtual void	openPopupMenu (const SbVec2s position)

virtual void	rightWheelFinish (void)

virtual void	rightWheelStart (void)

void	setBottomWheelString (const char *const name)

void	setBottomWheelValue (const float value)

void	setLeftWheelString (const char *const name)

void	setLeftWheelValue (const float value)

virtual void	setPopupMenuString (const char *title)

void	setRightWheelString (const char *const name)

void	setRightWheelValue (const float value)

virtual void	sizeChanged (const SbVec2s &size)

Protected Member Functions inherited from SoGtkViewer
	SoGtkViewer (GtkWidget parent, const char name, SbBool embed, Type type, SbBool build)

	~SoGtkViewer ()

void	addSuperimposition (SoNode *scene)

virtual void	computeSeekFinalOrientation (void)

int	getInteractiveCount (void) const

float	getSeekDistance (void) const

SbBool	getSuperimpositionEnabled (SoNode *scene) const

void	interactiveCountDec (void)

void	interactiveCountInc (void)

SbBool	isSeekMode (void) const

SbBool	isSeekValuePercentage (void) const

void	removeSuperimposition (SoNode *scene)

SbBool	seekToPoint (const SbVec2s screenpos)

void	seekToPoint (const SbVec3f &scenepos)

void	setSeekDistance (const float distance)

void	setSeekValueAsPercentage (const SbBool on)

void	setSuperimpositionEnabled (SoNode *scene, const SbBool enable)

Protected Member Functions inherited from SoGtkRenderArea
	SoGtkRenderArea (GtkWidget parent, const char name, SbBool embed, SbBool mouseInput, SbBool keyboardInput, SbBool build)

virtual void	actualOverlayRedraw (void)

GtkWidget *	buildWidget (GtkWidget *parent)

virtual SbBool	glScheduleRedraw (void)

virtual void	initGraphic (void)

virtual void	initOverlayGraphic (void)

virtual void	processEvent (GdkEvent *event)

virtual void	redraw (void)

virtual void	redrawOverlay (void)

virtual void	widgetChanged (GtkWidget *widget)

Protected Member Functions inherited from SoGtkGLWidget
	SoGtkGLWidget (GtkWidget const parent=NULL, const char const name=NULL, const SbBool embed=TRUE, const int glmodes=SO_GL_RGB, const SbBool build=TRUE)

	~SoGtkGLWidget ()

GtkWidget *	buildWidget (GtkWidget *parent)

virtual SbBool	eventFilter (GtkWidget object, GdkEvent event)

float	getGLAspectRatio (void) const

SbVec2s	getGLSize (void) const

float	getGlxAspectRatio (void) const

SbVec2s	getGlxSize (void) const

void	glFlushBuffer (void)

void	glLockNormal (void)

void	glLockOverlay (void)

void	glSwapBuffers (void)

void	glUnlockNormal (void)

void	glUnlockOverlay (void)

SbBool	isRGBMode (void)

SbBool	isStereoBuffer (void) const

void	setGLSize (const SbVec2s size)

void	setGlxSize (const SbVec2s size)

void	setStereoBuffer (SbBool flag)

Protected Member Functions inherited from SoGtkComponent
	SoGtkComponent (GtkWidget const parent=NULL, const char const name=NULL, const SbBool embed=TRUE)

void	addVisibilityChangeCallback (SoGtkComponentVisibilityCB const func, void const user=NULL)

void	registerWidget (GtkWidget *widget)

void	removeVisibilityChangeCallback (SoGtkComponentVisibilityCB const func, void const user=NULL)

void	setBaseWidget (GtkWidget *widget)

void	setClassName (const char *const name)

void	unregisterWidget (GtkWidget *widget)

Additional Inherited Members
Public Types inherited from SoGtkFullViewer
enum	BuildFlag { BUILD_NONE = 0x00 , BUILD_DECORATION = 0x01 , BUILD_POPUP = 0x02 , BUILD_ALL = (BUILD_DECORATION \| BUILD_POPUP) }

Public Types inherited from SoGtkViewer
enum	AutoClippingStrategy { VARIABLE_NEAR_PLANE , CONSTANT_NEAR_PLANE }

enum	BufferType { BUFFER_SINGLE , BUFFER_DOUBLE , BUFFER_INTERACTIVE }

enum	DrawStyle { VIEW_AS_IS , VIEW_HIDDEN_LINE , VIEW_NO_TEXTURE , VIEW_LOW_COMPLEXITY , VIEW_LINE , VIEW_POINT , VIEW_BBOX , VIEW_LOW_RES_LINE , VIEW_LOW_RES_POINT , VIEW_SAME_AS_STILL , VIEW_WIREFRAME_OVERLAY }

enum	DrawType { STILL = 0 , INTERACTIVE }

enum	StereoType { STEREO_NONE , STEREO_ANAGLYPH , STEREO_QUADBUFFER , STEREO_INTERLEAVED_ROWS , STEREO_INTERLEAVED_COLUMNS }

enum	Type { BROWSER , EDITOR }

Static Public Member Functions inherited from SoGtkRenderArea
static uint32_t	getDefaultRedrawPriority (void)

Static Public Member Functions inherited from SoGtkComponent
static SoGtkComponent *	getComponent (GtkWidget *widget)

static void	initClasses (void)

static void	setWidgetCursor (GtkWidget *w, const SoGtkCursor &cursor)

Static Public Member Functions inherited from SoGtkObject
static SoType	getClassTypeId (void)

static void	init (void)

static void	initClass (void)

Protected Attributes inherited from SoGtkFullViewer
GtkWidget *	bottomDecoration

GtkWidget *	bottomWheel

GtkWidget *	bottomWheelLabel

char *	bottomWheelStr

float	bottomWheelVal

GtkWidget *	leftDecoration

GtkWidget *	leftWheel

GtkWidget *	leftWheelLabel

char *	leftWheelStr

float	leftWheelVal

SoGtkPopupMenu *	prefmenu

GtkWidget *	rightDecoration

GtkWidget *	rightWheel

GtkWidget *	rightWheelLabel

char *	rightWheelStr

float	rightWheelVal

Protected Attributes inherited from SoGtkGLWidget
SbBool	drawToFrontBuffer

SbBool	waitForExpose

Protected Attributes inherited from SoGtkComponent
SbBool	firstRealize

Detailed Description

The SoGtkFlyViewer class implements controls for moving the camera in a "flying" motion.

Controls:

Left mouse button increases the speed.
Middle mouse button decreases the speed.
Left and middle mouse button together sets the speed to zero.
"s" puts the viewer in seek mode. Click some geometry with the left mouse button to start the seek zoom animation. (Hitting "s" again before clicking will cancel the seek operation.)
"u" puts the viewer in up-vector pick mode. Click some geometry with the left mouse button to set the camera's up-vector to the normal vector of the face you pick. (Hitting "u" again before clicking will cancel the pick operation.)
The control key stops the flying and lets you tilt the camera by moving the pointer.

Constructor & Destructor Documentation

◆ SoGtkFlyViewer() [1/2]

SoGtkFlyViewer::SoGtkFlyViewer	(	GtkWidget *	parent = NULL,
		const char *	name = NULL,
		SbBool	embed = TRUE,
		SoGtkFullViewer::BuildFlag	flag = BUILD_ALL,
		SoGtkViewer::Type	type = BROWSER )

Public constructor.

◆ ~SoGtkFlyViewer()

SoGtkFlyViewer::~SoGtkFlyViewer ( )

Virtual constructor.

◆ SoGtkFlyViewer() [2/2]

SoGtkFlyViewer::SoGtkFlyViewer	(	GtkWidget *	parent,
		const char *const	name,
		SbBool	embed,
		SoGtkFullViewer::BuildFlag	flag,
		SoGtkViewer::Type	type,
		SbBool	build )

protected

Protected constructor, used by viewer components derived from the SoGtkFlyViewer.

Member Function Documentation

◆ actualRedraw()

void SoGtkFlyViewer::actualRedraw ( void )

protectedvirtual

This method instantly redraws the normal (non-overlay) scene graph by calling SoSceneManager::render().

Subclasses may override this method to add their own rendering before or after Coin renders its scene graph.

The following is a complete example that demonstrates one way of adding both a background image and foreground (overlay) geometry to the "normal" rendering:

// This example shows how to put a permanent background image on
// your viewer canvas, below the 3D graphics, plus overlay
// foreground geometry.  Written by mortene.
// Copyright Kongsberg Oil & Gas Technologies 2002.
 
// *************************************************************************
 
#include <Inventor/Gtk/SoGtk.h>
#include <Inventor/Gtk/viewers/SoGtkExaminerViewer.h>
#include <Inventor/nodes/SoBaseColor.h>
#include <Inventor/nodes/SoCone.h>
#include <Inventor/nodes/SoCube.h>
#include <Inventor/nodes/SoImage.h>
#include <Inventor/nodes/SoLightModel.h>
#include <Inventor/nodes/SoOrthographicCamera.h>
#include <Inventor/nodes/SoRotationXYZ.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoTranslation.h>
 
#include <GL/gl.h>
 
// *************************************************************************
 
class MyExaminerViewer : public SoGtkExaminerViewer {
 
public:
  MyExaminerViewer(GtkWidget* parent, const char * filename);
  ~MyExaminerViewer();
 
protected:
  virtual void actualRedraw(void);
 
private:
  SoSeparator * bckgroundroot;
  SoSeparator * foregroundroot;
  SoRotationXYZ * arrowrotation;
};
 
MyExaminerViewer::MyExaminerViewer(GtkWidget* parent, const char * filename)
  : SoGtkExaminerViewer(parent)
{
  // Coin should not clear the pixel-buffer, so the background image
  // is not removed.
  this->setClearBeforeRender(FALSE, TRUE);
 
 
  // Set up background scene graph with image in it.
 
  this->bckgroundroot = new SoSeparator;
  this->bckgroundroot->ref();
 
  SoOrthographicCamera * cam = new SoOrthographicCamera;
  cam->position = SbVec3f(0, 0, 1);
  cam->height = 1;
  // SoImage will be at z==0.0.
  cam->nearDistance = 0.5;
  cam->farDistance = 1.5;
 
  SoImage * img = new SoImage;
  img->vertAlignment = SoImage::HALF;
  img->horAlignment = SoImage::CENTER;
  img->filename = filename;
 
  this->bckgroundroot->addChild(cam);
  this->bckgroundroot->addChild(img);
 
  // Set up foreground, overlaid scene graph.
 
  this->foregroundroot = new SoSeparator;
  this->foregroundroot->ref();
 
  SoLightModel * lm = new SoLightModel;
  lm->model = SoLightModel::BASE_COLOR;
 
  SoBaseColor * bc = new SoBaseColor;
  bc->rgb = SbColor(1, 1, 0);
 
  cam = new SoOrthographicCamera;
  cam->position = SbVec3f(0, 0, 5);
  cam->height = 10;
  cam->nearDistance = 0;
  cam->farDistance = 10;
 
  const double ARROWSIZE = 2.0;
 
  SoTranslation * posit = new SoTranslation;
  posit->translation = SbVec3f(-2.5 * ARROWSIZE, 1.5 * ARROWSIZE, 0);
 
  arrowrotation = new SoRotationXYZ;
  arrowrotation->axis = SoRotationXYZ::Z;
 
  SoTranslation * offset = new SoTranslation;
  offset->translation = SbVec3f(ARROWSIZE/2.0, 0, 0);
 
  SoCube * cube = new SoCube;
  cube->width = ARROWSIZE;
  cube->height = ARROWSIZE/15.0;
 
  this->foregroundroot->addChild(cam);
  this->foregroundroot->addChild(lm);
  this->foregroundroot->addChild(bc);
  this->foregroundroot->addChild(posit);
  this->foregroundroot->addChild(arrowrotation);
  this->foregroundroot->addChild(offset);
  this->foregroundroot->addChild(cube);
}
 
MyExaminerViewer::~MyExaminerViewer()
{
  this->bckgroundroot->unref();
  this->foregroundroot->unref();
}
 
void
MyExaminerViewer::actualRedraw(void)
{
  // Must set up the OpenGL viewport manually, as upon resize
  // operations, Coin won't set it up until the SoGLRenderAction is
  // applied again. And since we need to do glClear() before applying
  // the action..
  const SbViewportRegion vp = this->getViewportRegion();
  SbVec2s origin = vp.getViewportOriginPixels();
  SbVec2s size = vp.getViewportSizePixels();
  glViewport(origin[0], origin[1], size[0], size[1]);
 
  const SbColor col = this->getBackgroundColor();
  glClearColor(col[0], col[1], col[2], 0.0f);
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
  // Render our scene graph with the image.
  SoGLRenderAction * glra = this->getGLRenderAction();
  glra->apply(this->bckgroundroot);
 
 
  // Render normal scene graph.
  SoGtkExaminerViewer::actualRedraw();
 
 
  // Increase arrow angle with 1/1000 degrees every frame.
  arrowrotation->angle = arrowrotation->angle.getValue() + (0.001 / M_PI * 180);
  // Render overlay front scene graph.
  glClear(GL_DEPTH_BUFFER_BIT);
  glra->apply(this->foregroundroot);
}
 
// *************************************************************************
 
int
main(int argc, char ** argv)
{
  if (argc != 2) {
    (void)fprintf(stderr, "\n\n\tUsage: %s <image-filename>\n\n", argv[0]);
    exit(1);
  }
 
  GtkWidget* window = SoGtk::init(argv[0]);
 
  MyExaminerViewer * viewer = new MyExaminerViewer(window, argv[1]);
 
  viewer->setSceneGraph(new SoCone);
  viewer->show();
 
  SoGtk::show(window);
  SoGtk::mainLoop();
 
  delete viewer;
  return 0;
}
 
// *************************************************************************

Reimplemented from SoGtkViewer.

◆ afterRealizeHook()

void SoGtkFlyViewer::afterRealizeHook ( void )

protectedvirtual

A function "hook" / callback invoked just after the window for the component has been realized.

Override this if you need specific initialization for your own component or viewer class to happen right after it has been made visible, but remember to call upwards in the inheritance hierarchy:

void
MyLittleViewer::afterRealizeHook(void)
{
  <superclass>::afterRealizeHook();
  // [own initialization here]
}

Reimplemented from SoGtkRenderArea.

◆ getDefaultIconTitle()

const char * SoGtkFlyViewer::getDefaultIconTitle ( void ) const

protectedvirtual

This method returns the default icon title of the component.

It should be overridden by derived non-abstract classes so icons will get proper titles.

Reimplemented from SoGtkRenderArea.

◆ getDefaultTitle()

const char * SoGtkFlyViewer::getDefaultTitle ( void ) const

protectedvirtual

This method returns the default window caption string of the component.

It should be overridden by derived non-abstract classes so the window and pop-up menu will get a proper title.

Reimplemented from SoGtkRenderArea.

◆ getDefaultWidgetName()

const char * SoGtkFlyViewer::getDefaultWidgetName ( void ) const

protectedvirtual

This method returns the default name of a component widget class.

It should be overridden by derived non-abstract classes for the topmost widget in the component to have a proper name.

Reimplemented from SoGtkRenderArea.

◆ processSoEvent()

SbBool SoGtkFlyViewer::processSoEvent ( const SoEvent *const event )

protectedvirtual

Toolkit-native events are tried to convert to Coin-generic events in the SoGtkRenderArea::processEvent() method. If this succeeds, they are forwarded to this method.

This is a virtual method, and is overridden in its subclasses to catch events of particular interest to the viewer classes, for instance.

Return TRUE if the event was processed. If not it should be passed on further up in the inheritance hierarchy by the caller. This last point is extremely important to take note of if you are expanding the toolkit with your own viewer class.

This method is not part of the original SGI InventorXt API. Note that you can still override the toolkit-native processEvent() method instead of this "generic" method.

Reimplemented from SoGtkFullViewer.

◆ resetToHomePosition()

void SoGtkFlyViewer::resetToHomePosition ( void )

virtual

Restore the saved camera settings.

See also: saveHomePosition()

Reimplemented from SoGtkConstrainedViewer.

◆ rightWheelMotion()

void SoGtkFlyViewer::rightWheelMotion ( float value )

protectedvirtual

Called repeatedly as the user drags the thumbwheel in the right frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also: rightWheelStart(), rightWheelFinish(); leftWheelStart(), bottomWheelStart()

Reimplemented from SoGtkFullViewer.

◆ setCamera()

void SoGtkFlyViewer::setCamera ( SoCamera * cam )

virtual

Set the camera we want the viewer to manipulate when interacting with the viewer controls.

The camera passed in as an argument to this method must already be part of the viewer's scene graph. You do not inject viewpoint cameras to the viewer with this method.

You should rather insert a camera into the scene graph first (if necessary, often one will be present already), then register it as the camera used by the viewer controls with this method.

If the application code doesn't explicitly set up a camera through this method, the viewer will automatically scan through the scene graph to find a camera to use. If no camera is available in the scene graph at all, it will set up its own camera.

See also: getCamera()

Reimplemented from SoGtkConstrainedViewer.

◆ setCameraType()

void SoGtkFlyViewer::setCameraType ( SoType t )

virtual

When the viewer has to make its own camera as a result of the graph passed to setSceneGraph() not containing any camera nodes, this call can be made in advance to decide which type the camera will be of.

Default is to use an SoPerspectiveCamera.

If this method is called when there is a scene graph and a camera already set up, it will delete the old camera and set up a camera with the new type if the t type is different from that of the current camera.

See also: getCameraType()

Reimplemented from SoGtkViewer.

◆ setCursorEnabled()

void SoGtkFlyViewer::setCursorEnabled ( SbBool on )

virtual

Set whether or not the mouse cursor representation should be visible in the viewer canvas.

Default value is on.

See also: isCursorEnabled()

Reimplemented from SoGtkViewer.

◆ setSeekMode()

void SoGtkFlyViewer::setSeekMode ( SbBool enable )

protectedvirtual

Put the viewer in or out of "waiting-to-seek" mode.

If the user performs a mouse button click when the viewer is in "waiting-to-seek" mode, the camera will be repositioned so the camera focal point lies on the point of the geometry under the mouse cursor.

See also: isSeekMode(), setDetailSeek()

Reimplemented from SoGtkViewer.

◆ setViewing()

void SoGtkFlyViewer::setViewing ( SbBool enable )

virtual

Set view mode.

If the view mode is on, user events will be caught and used to influence the camera position / orientation. If view mode is off, all events in the viewer canvas (like for instance keypresses or mouse clicks and -movements) will be passed along to the scene graph.

Default is to have the view mode active.

See also: isViewing()

Reimplemented from SoGtkFullViewer.

◆ viewAll()

void SoGtkFlyViewer::viewAll ( void )

virtual

Reposition the current camera so we can see the complete scene.

Reimplemented from SoGtkViewer.

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

SoGtkFlyViewer.h
SoGtkFlyViewer.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SoGtkFlyViewer() [1/2]

◆ ~SoGtkFlyViewer()

◆ SoGtkFlyViewer() [2/2]

Member Function Documentation

◆ actualRedraw()

◆ afterRealizeHook()

◆ getDefaultIconTitle()

◆ getDefaultTitle()

◆ getDefaultWidgetName()

◆ processSoEvent()

◆ resetToHomePosition()

◆ rightWheelMotion()

◆ setCamera()

◆ setCameraType()

◆ setCursorEnabled()

◆ setSeekMode()

◆ setViewing()

◆ viewAll()