SoQtPlaneViewer - Man Page

SoQtPlaneViewer (QWidget *parent=NULL, const char *const name=NULL, SbBool embed=TRUE, SoQtFullViewer::BuildFlag flag=BUILD_ALL, SoQtViewer::Type type=BROWSER)
~SoQtPlaneViewer ()
virtual void setViewing (SbBool enable)
virtual void setCamera (SoCamera *camera)
virtual void setCursorEnabled (SbBool enable)

Public Member Functions inherited from SoQtFullViewer
void setDecoration (const SbBool on)
SbBool isDecoration (void) const
void setPopupMenuEnabled (const SbBool on)
SbBool isPopupMenuEnabled (void) const
QWidget * getAppPushButtonParent (void) const
void addAppPushButton (QWidget *newButton)
void insertAppPushButton (QWidget *newButton, int index)
void removeAppPushButton (QWidget *oldButton)
int findAppPushButton (QWidget *oldButton) const
int lengthAppPushButton (void) const
QWidget * getRenderAreaWidget (void) const
virtual void setViewing (SbBool on)
virtual void setComponentCursor (const SoQtCursor &cursor)

Public Member Functions inherited from SoQtViewer
virtual void setCamera (SoCamera *camera)
SoCamera * getCamera (void) const
virtual void setCameraType (SoType type)
SoType getCameraType (void) const
virtual void toggleCameraType (void)
virtual void viewAll (void)
virtual void saveHomePosition (void)
virtual void resetToHomePosition (void)
virtual void setHeadlight (SbBool enable)
SbBool isHeadlight (void) const
SoDirectionalLight * getHeadlight (void) const
virtual void setDrawStyle (SoQtViewer::DrawType type, SoQtViewer::DrawStyle style)
SoQtViewer::DrawStyle getDrawStyle (const SoQtViewer::DrawType type) const
virtual void setBufferingType (SoQtViewer::BufferType type)
SoQtViewer::BufferType getBufferingType (void) const
virtual void setViewing (SbBool enable)
SbBool isViewing (void) const
virtual void setCursorEnabled (SbBool enable)
SbBool isCursorEnabled (void) const
void setAutoClipping (SbBool enable)
SbBool isAutoClipping (void) const
void setAutoClippingStrategy (const AutoClippingStrategy strategy, const float value=0.6f, SoQtAutoClippingCB *cb=NULL, void *cbuserdata=NULL)
virtual void setStereoViewing (SbBool enable)
SbBool isStereoViewing (void) const
virtual void setStereoOffset (const float dist)
float getStereoOffset (void) const
SbBool setStereoType (SoQtViewer::StereoType s)
SoQtViewer::StereoType getStereoType (void) const
void setAnaglyphStereoColorMasks (const SbBool left[3], const SbBool right[3])
void getAnaglyphStereoColorMasks (SbBool left[3], SbBool right[3])
void setDetailSeek (const SbBool enable)
SbBool isDetailSeek (void) const
void setSeekTime (const float seconds)
float getSeekTime (void) const
void addStartCallback (SoQtViewerCB *func, void *data=NULL)
void addFinishCallback (SoQtViewerCB *func, void *data=NULL)
void removeStartCallback (SoQtViewerCB *func, void *data=NULL)
void removeFinishCallback (SoQtViewerCB *func, void *data=NULL)
void setWireframeOverlayColor (const SbColor &color)
const SbColor & getWireframeOverlayColor (void) const
virtual void setDoubleBuffer (const SbBool enable)
virtual void setSceneGraph (SoNode *root)
virtual SoNode * getSceneGraph (void)

Public Member Functions inherited from SoQtRenderArea
SoQtRenderArea (QWidget *parent=NULL, const char *name=NULL, SbBool embed=TRUE, SbBool mouseInput=TRUE, SbBool keyboardInput=TRUE)
~SoQtRenderArea ()
virtual void setSceneGraph (SoNode *scene)
virtual SoNode * getSceneGraph (void)
void setOverlaySceneGraph (SoNode *scene)
SoNode * getOverlaySceneGraph (void)
void setBackgroundColor (const SbColor &color)
const SbColor & getBackgroundColor (void) const
void setBackgroundIndex (int idx)
int getBackgroundIndex (void) const
void setOverlayBackgroundIndex (int idx)
int getOverlayBackgroundIndex (void) const
void setColorMap (int start, int num, const SbColor *colors)
void setOverlayColorMap (int start, int num, const SbColor *colors)
void setViewportRegion (const SbViewportRegion &newRegion)
const SbViewportRegion & getViewportRegion (void) const
void setTransparencyType (SoGLRenderAction::TransparencyType type)
SoGLRenderAction::TransparencyType getTransparencyType (void) const
void setAntialiasing (SbBool smoothing, int numPasses)
void getAntialiasing (SbBool &smoothing, int &numPasses) const
void setClearBeforeRender (SbBool enable, SbBool zbEnable=TRUE)
SbBool isClearBeforeRender (void) const
SbBool isClearZBufferBeforeRender (void) const
void setClearBeforeOverlayRender (SbBool enable)
SbBool isClearBeforeOverlayRender (void) const
void setAutoRedraw (SbBool enable)
SbBool isAutoRedraw (void) const
void setRedrawPriority (uint32_t priority)
uint32_t getRedrawPriority (void) const
void render (void)
void renderOverlay (void)
void scheduleRedraw (void)
void scheduleOverlayRedraw (void)
void redrawOnSelectionChange (SoSelection *selection)
void redrawOverlayOnSelectionChange (SoSelection *selection)
void setEventCallback (SoQtRenderAreaEventCB *func, void *user=NULL)
void setSceneManager (SoSceneManager *manager)
SoSceneManager * getSceneManager (void) const
void setOverlaySceneManager (SoSceneManager *manager)
SoSceneManager * getOverlaySceneManager (void) const
void setGLRenderAction (SoGLRenderAction *action)
SoGLRenderAction * getGLRenderAction (void) const
void setOverlayGLRenderAction (SoGLRenderAction *action)
SoGLRenderAction * getOverlayGLRenderAction (void) const
SbBool sendSoEvent (const SoEvent *event)
void registerDevice (SoQtDevice *device)
void unregisterDevice (SoQtDevice *device)

Public Member Functions inherited from SoQtGLWidget
void setBorder (const SbBool enable)
SbBool isBorder (void) const
virtual void setDoubleBuffer (const SbBool enable)
SbBool isDoubleBuffer (void) const
void setDrawToFrontBufferEnable (const SbBool enable)
SbBool isDrawToFrontBufferEnable (void) const
void setQuadBufferStereo (const SbBool enable)
SbBool isQuadBufferStereo (void) const
void setAccumulationBuffer (const SbBool enable)
SbBool getAccumulationBuffer (void) const
void setStencilBuffer (const SbBool enable)
SbBool getStencilBuffer (void) const
void setAlphaChannel (const SbBool enable)
SbBool getAlphaChannel (void) const
void setOverlayRender (const SbBool onoff)
SbBool isOverlayRender (void) const
void setSampleBuffers (const int numsamples)
int getSampleBuffers (void) const
void setStealFocus (SbBool enable)
SbBool isStealFocus (void) const
QWidget * getGLWidget (void) const
QWidget * getNormalWidget (void) const
QWidget * getOverlayWidget (void) const
SbBool hasOverlayGLArea (void) const
SbBool hasNormalGLArea (void) const
unsigned long getOverlayTransparentPixel (void)
void getPointSizeLimits (SbVec2f &range, float &granularity)
void getLineWidthLimits (SbVec2f &range, float &granularity)

Public Member Functions inherited from SoQtComponent
virtual ~SoQtComponent ()
virtual void show (void)
virtual void hide (void)
virtual void setComponentCursor (const SoQtCursor &cursor)
SbBool isFullScreen (void) const
SbBool setFullScreen (const SbBool onoff)
SbBool isVisible (void)
SbBool isTopLevelShell (void) const
QWidget * getWidget (void) const
QWidget * getBaseWidget (void) const
QWidget * getShellWidget (void) const
QWidget * getParentWidget (void) const
void setSize (const SbVec2s size)
SbVec2s getSize (void) const
void setTitle (const char *const title)
const char * getTitle (void) const
void setIconTitle (const char *const title)
const char * getIconTitle (void) const
const char * getWidgetName (void) const
const char * getClassName (void) const
void setWindowCloseCallback (SoQtComponentCB *const func, void *const user=NULL)

Public Member Functions inherited from SoQtObject
virtual SoType getTypeId (void) const =0
SbBool isOfType (SoType type) const

SoQtPlaneViewer (QWidget *parent, const char *const name, SbBool embed, SoQtFullViewer::BuildFlag flag, SoQtViewer::Type type, SbBool build)
QWidget * buildWidget (QWidget *parent)
virtual const char * getDefaultWidgetName (void) const
virtual const char * getDefaultTitle (void) const
virtual const char * getDefaultIconTitle (void) const
virtual SbBool processSoEvent (const SoEvent *const event)
virtual void setSeekMode (SbBool enable)
virtual void actualRedraw (void)
virtual void bottomWheelStart (void)
virtual void bottomWheelMotion (float value)
virtual void bottomWheelFinish (void)
virtual void leftWheelStart (void)
virtual void leftWheelMotion (float value)
virtual void leftWheelFinish (void)
virtual void rightWheelStart (void)
virtual void rightWheelMotion (float value)
virtual void rightWheelFinish (void)
virtual void createViewerButtons (QWidget *parent, SbPList *buttons)
virtual void afterRealizeHook (void)
virtual void computeSeekFinalOrientation (void)

Protected Member Functions inherited from SoQtFullViewer
SoQtFullViewer (QWidget *parent, const char *name, SbBool embed, BuildFlag flag, Type type, SbBool build)
~SoQtFullViewer ()
virtual void sizeChanged (const SbVec2s &size)
QWidget * buildWidget (QWidget *parent)
virtual void buildDecoration (QWidget *parent)
virtual QWidget * buildLeftTrim (QWidget *parent)
virtual QWidget * buildBottomTrim (QWidget *parent)
virtual QWidget * buildRightTrim (QWidget *parent)
QWidget * buildAppButtons (QWidget *parent)
QWidget * buildViewerButtons (QWidget *parent)
virtual void createViewerButtons (QWidget *parent, SbPList *buttonlist)
virtual void buildPopupMenu (void)
virtual void setPopupMenuString (const char *title)
virtual void openPopupMenu (const SbVec2s position)
virtual void leftWheelStart (void)
virtual void leftWheelMotion (float)
virtual void leftWheelFinish (void)
float getLeftWheelValue (void) const
void setLeftWheelValue (const float value)
virtual void bottomWheelStart (void)
virtual void bottomWheelMotion (float)
virtual void bottomWheelFinish (void)
float getBottomWheelValue (void) const
void setBottomWheelValue (const float value)
virtual void rightWheelStart (void)
virtual void rightWheelMotion (float)
virtual void rightWheelFinish (void)
float getRightWheelValue (void) const
void setRightWheelValue (const float value)
void setLeftWheelString (const char *const name)
QWidget * getLeftWheelLabelWidget (void) const
void setBottomWheelString (const char *const name)
QWidget * getBottomWheelLabelWidget (void) const
void setRightWheelString (const char *const name)
const char * getRightWheelString () const
QWidget * getRightWheelLabelWidget (void) const
virtual SbBool processSoEvent (const SoEvent *const event)

Protected Member Functions inherited from SoQtViewer
SoQtViewer (QWidget *parent, const char *name, SbBool embed, Type type, SbBool build)
~SoQtViewer ()
virtual void sizeChanged (const SbVec2s &size)
virtual void setSeekMode (SbBool enable)
SbBool isSeekMode (void) const
SbBool seekToPoint (const SbVec2s screenpos)
void seekToPoint (const SbVec3f &scenepos)
virtual void computeSeekFinalOrientation (void)
virtual void actualRedraw (void)
virtual SbBool processSoEvent (const SoEvent *const event)
void interactiveCountInc (void)
void interactiveCountDec (void)
int getInteractiveCount (void) const
void setSeekDistance (const float distance)
float getSeekDistance (void) const
void setSeekValueAsPercentage (const SbBool on)
SbBool isSeekValuePercentage (void) const
virtual void changeCameraValues (SoCamera *camera)
void addSuperimposition (SoNode *scene)
void removeSuperimposition (SoNode *scene)
void setSuperimpositionEnabled (SoNode *scene, const SbBool enable)
SbBool getSuperimpositionEnabled (SoNode *scene) const

Protected Member Functions inherited from SoQtRenderArea
SoQtRenderArea (QWidget *parent, const char *name, SbBool embed, SbBool mouseInput, SbBool keyboardInput, SbBool build)
virtual void redraw (void)
virtual void actualRedraw (void)
virtual void redrawOverlay (void)
virtual void actualOverlayRedraw (void)
virtual SbBool processSoEvent (const SoEvent *const event)
virtual void processEvent (QEvent *event)
virtual void initGraphic (void)
virtual void initOverlayGraphic (void)
virtual void sizeChanged (const SbVec2s &size)
virtual void widgetChanged (QWidget *widget)
virtual void afterRealizeHook (void)
QWidget * buildWidget (QWidget *parent)
virtual const char * getDefaultWidgetName (void) const
virtual const char * getDefaultTitle (void) const
virtual const char * getDefaultIconTitle (void) const
virtual SbBool glScheduleRedraw (void)

Protected Member Functions inherited from SoQtGLWidget
SoQtGLWidget (QWidget *const parent=NULL, const char *const name=NULL, const SbBool embed=TRUE, const int glmodes=SO_GL_RGB, const SbBool build=TRUE)
~SoQtGLWidget ()
virtual void processEvent (QEvent *event)
QWidget * buildWidget (QWidget *parent)
virtual void redraw (void)=0
virtual void redrawOverlay (void)
virtual void initGraphic (void)
virtual void initOverlayGraphic (void)
virtual void sizeChanged (const SbVec2s &size)
virtual void widgetChanged (QWidget *w)
void setGLSize (const SbVec2s size)
SbVec2s getGLSize (void) const
float getGLAspectRatio (void) const
void setGlxSize (const SbVec2s size)
SbVec2s getGlxSize (void) const
float getGlxAspectRatio (void) const
void setStereoBuffer (SbBool flag)
SbBool isStereoBuffer (void) const
SbBool isRGBMode (void)
void glLockNormal (void)
void glUnlockNormal (void)
void glLockOverlay (void)
void glUnlockOverlay (void)
void glSwapBuffers (void)
void glFlushBuffer (void)
virtual SbBool glScheduleRedraw (void)

Protected Member Functions inherited from SoQtComponent
SoQtComponent (QWidget *const parent=NULL, const char *const name=NULL, const SbBool embed=TRUE)
virtual void afterRealizeHook (void)
void setClassName (const char *const name)
void setBaseWidget (QWidget *widget)
void registerWidget (QWidget *widget)
void unregisterWidget (QWidget *widget)
virtual const char * getDefaultWidgetName (void) const
virtual const char * getDefaultTitle (void) const
virtual const char * getDefaultIconTitle (void) const
virtual void sizeChanged (const SbVec2s &size)
void addVisibilityChangeCallback (SoQtComponentVisibilityCB *const func, void *const user=NULL)
void removeVisibilityChangeCallback (SoQtComponentVisibilityCB *const func, void *const user=NULL)

Public Types inherited from SoQtFullViewer

enum BuildFlag { BUILD_NONE = 0x00, BUILD_DECORATION = 0x01, BUILD_POPUP = 0x02, BUILD_ALL = (BUILD_DECORATION | BUILD_POPUP) }

Public Types inherited from SoQtViewer
enum Type { BROWSER, EDITOR }
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 BufferType { BUFFER_SINGLE, BUFFER_DOUBLE, BUFFER_INTERACTIVE }
enum AutoClippingStrategy { VARIABLE_NEAR_PLANE, CONSTANT_NEAR_PLANE }
enum StereoType { STEREO_NONE, STEREO_ANAGLYPH, STEREO_QUADBUFFER, STEREO_INTERLEAVED_ROWS, STEREO_INTERLEAVED_COLUMNS }

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

Static Public Member Functions inherited from SoQtComponent
static void setWidgetCursor (QWidget *w, const SoQtCursor &cursor)
static SoQtComponent * getComponent (QWidget *widget)
static void initClasses (void)

Static Public Member Functions inherited from SoQtObject
static void initClass (void)
static SoType getClassTypeId (void)
static void init (void)

Protected Attributes inherited from SoQtFullViewer
QWidget * leftWheel
QWidget * rightWheel
QWidget * bottomWheel
QWidget * leftDecoration
QWidget * rightDecoration
QWidget * bottomDecoration
QWidget * leftWheelLabel
char * leftWheelStr
float leftWheelVal
QWidget * rightWheelLabel
char * rightWheelStr
float rightWheelVal
QWidget * bottomWheelLabel
char * bottomWheelStr
float bottomWheelVal
SoQtPopupMenu * prefmenu

Protected Attributes inherited from SoQtGLWidget
SbBool waitForExpose
SbBool drawToFrontBuffer

The public constructor, to be used by application programmers who want to instantiate the plain, standard SoQtPlaneViewer.

The destructor. Cleans up all internal resources used by the SoQtPlaneViewer instance.

A protected constructor, to be used by application programmers who want to extend the SoQtPlaneViewer.

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 SoQtFullViewer.

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 SoQtViewer.

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

Default value is on.

See also

isCursorEnabled()

Reimplemented from SoQtViewer.

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 SoQtRenderArea.

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 SoQtRenderArea.

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 SoQtRenderArea.

Toolkit-native events are tried to convert to Coin-generic events in the SoQtRenderArea::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 SoQtFullViewer.

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 SoQtViewer.

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/Qt/SoQt.h>
#include <Inventor/Qt/viewers/SoQtExaminerViewer.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 SoQtExaminerViewer {

public:
  MyExaminerViewer(QWidget * parent, const char * filename);
  ~MyExaminerViewer();

protected:
  virtual void actualRedraw(void);

private:
  SoSeparator * bckgroundroot;
  SoSeparator * foregroundroot;
  SoRotationXYZ * arrowrotation;
};

MyExaminerViewer::MyExaminerViewer(QWidget * parent, const char * filename)
  : SoQtExaminerViewer(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.
  SoQtExaminerViewer::actualRedraw();


  // Increase arrow angle with 1/1000 ° 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);
  }

  QWidget * window = SoQt::init(argv[0]);

  MyExaminerViewer * viewer = new MyExaminerViewer(window, argv[1]);

  viewer->setSceneGraph(new SoCone);
  viewer->show();

  SoQt::show(window);
  SoQt::mainLoop();

  delete viewer;
  return 0;
}

// *************************************************************************

Reimplemented from SoQtViewer.

Called when the user starts to drag the thumbwheel in the bottom frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

bottomWheelMotion(), bottomWheelFinish()

leftWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

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

See also

bottomWheelStart(), bottomWheelFinish()

leftWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

Called as the user let go of the thumbwheel in the bottom frame after a drag operation. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

bottomWheelStart(), bottomWheelMotion()

leftWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

Called when the user starts to drag the thumbwheel in the left frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

leftWheelMotion(), leftWheelFinish()

bottomWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

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

See also

leftWheelStart(), leftWheelFinish()

bottomWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

Called as the user let go of the thumbwheel in the left frame after a drag operation. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

leftWheelStart(), leftWheelMotion()

bottomWheelStart(), rightWheelStart()

Reimplemented from SoQtFullViewer.

Called when the user starts to drag the thumbwheel in the right frame. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

rightWheelMotion(), rightWheelFinish()

leftWheelStart(), bottomWheelStart()

Reimplemented from SoQtFullViewer.

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 SoQtFullViewer.

Called as the user let go of the thumbwheel in the right frame after a drag operation. Override this method in subclassed viewers to provide your own functionality on the thumbwheel.

See also

rightWheelStart(), rightWheelMotion()

leftWheelStart(), bottomWheelStart()

Reimplemented from SoQtFullViewer.

Set up the viewer buttons with pixmaps and event connections.

One important note if you want to override this method to add your own buttons to the list (in the explanation below, it is assumed that you know how virtual function table pointers are handled by C++):

createViewerButtons() is called (indirectly) from the constructors of the viewer classes. This means that you need to delay its invocation until your own subclass's constructor is run, because otherwise your re-implementation won't have been added to the internal virtual function table yet.

Delaying a superclass viewer from building its decorations is done by passing build==FALSE as the last argument of the protected constructors. You will then have to explicitly trigger the building in your own constructor.

Here's a minimal example that shows the steps needed to be able to override createViewerButtons() from SoQtExaminerViewer:

class MyExaminerViewer : public SoQtExaminerViewer {

public:
  MyExaminerViewer(QWidget * parent);

protected:
  virtual void createViewerButtons(QWidget * parent, SbPList * buttonlist);
};

MyExaminerViewer::MyExaminerViewer(QWidget * parent)
  : SoQtExaminerViewer(parent, NULL, TRUE,
                          SoQtFullViewer::BUILD_ALL, SoQtFullViewer::BROWSER,
                          // build == FALSE, to delay creation of decorations
                          FALSE)
{
  // Explicitly trigger the construction of viewer decorations.
  QWidget * widget = this->buildWidget(this->getParentWidget());
  this->setBaseWidget(widget);
}

void
MyExaminerViewer::createViewerButtons(QWidget * parent, SbPList * buttonlist)
{
  SoQtExaminerViewer::createViewerButtons(parent, buttonlist);
  // [now add your own button(s) to the buttonlist]
}

Reimplemented from SoQtFullViewer.

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 SoQtRenderArea.

This method can be overridden in subclasses if the final orientation of the camera after a seek should be something other than what is computed in SoQtViewer::seekToPoint(const SbVec3f & scenepos)

Reimplemented from SoQtViewer.