The SoQtPlaneViewer class is for examining 3D models by moving the camera in orthogonal planes. More...

#include <Inventor/Qt/viewers/SoQtPlaneViewer.h>

Inheritance diagram for SoQtPlaneViewer:

Public Member Functions
	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	setComponentCursor (const SoQtCursor &cursor)

Public Member Functions inherited from SoQtViewer
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

SbBool	isViewing (void) const

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 ()

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

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)

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

Protected Member Functions
	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	buildPopupMenu (void)

virtual void	setPopupMenuString (const char *title)

virtual void	openPopupMenu (const SbVec2s position)

float	getLeftWheelValue (void) const

void	setLeftWheelValue (const float value)

float	getBottomWheelValue (void) const

void	setBottomWheelValue (const float value)

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

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

	~SoQtViewer ()

SbBool	isSeekMode (void) const

SbBool	seekToPoint (const SbVec2s screenpos)

void	seekToPoint (const SbVec3f &scenepos)

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	redrawOverlay (void)

virtual void	actualOverlayRedraw (void)

virtual void	processEvent (QEvent *event)

virtual void	initGraphic (void)

virtual void	initOverlayGraphic (void)

virtual void	widgetChanged (QWidget *widget)

QWidget *	buildWidget (QWidget *parent)

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 ()

QWidget *	buildWidget (QWidget *parent)

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)

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

void	setClassName (const char *const name)

void	setBaseWidget (QWidget *widget)

void	registerWidget (QWidget *widget)

void	unregisterWidget (QWidget *widget)

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

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

Additional Inherited Members
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

Detailed Description

The SoQtPlaneViewer class is for examining 3D models by moving the camera in orthogonal planes.

The SoQtPlaneViewer is a viewer that is useful for "CAD-style" applications, where you want the end-user to examine your model with the viewpoint set from one of the three principal axes.

Controls:

hold down left mouse button and move mouse pointer to dolly (or hold both left and middle mouse buttons)
hold middle mouse button to pan (or a CTRL-key plus left mouse button, or a SHIFT-key plus left mouse button)
hold down CTRL + middle mouse button to rotate (or CTRL + SHIFT + the left mouse button)
click 's', then pick with the left mouse button to seek
right mouse button open the pop-up menu
click 'ESC' key to switch to and from 'view' mode and 'scene graph interaction' mode (see setViewing() documentation)
hold down the 'ALT' key to temporary toggle from
camera-interaction mode to scene graph-interaction mode

Hitting any of the X, Y or Z buttons in the panel on the right side of the render canvas will "flip" the current camera direction around its focal point to point along the selected axis (towards negative infinity).

The SoQtPlaneViewer also provides a user decoration's button for toggling between orthographic or perspective camera view volumes and projection methods. This is the bottom-most click button on the right decoration border.

It also inherits the decoration buttons from the SoQtFullViewer: the arrow for switching to "scene graph interaction" mode, the hand for setting back to "camera interaction" mode, the house for "reset camera to home position", the blueprint house for "set new camera home position", the eye for "zoom camera out to view full scene" and the flashlight for setting "click to seek" mode.

Note that a common faulty assumption about all the viewer-classes is that user interaction (in the "examine"-mode, not the scene graph-interaction mode) influences the model or 3D-scene in the view. This is not correct, as it is always the viewer's camera that is translated and rotated.

The initial position of the camera is placed such that all of the scene graph's geometry fits within its view.

Constructor & Destructor Documentation

◆ SoQtPlaneViewer() [1/2]

SoQtPlaneViewer::SoQtPlaneViewer	(	QWidget *	parent = `NULL`,
		const char *const	name = `NULL`,
		SbBool	embed = `TRUE`,
		SoQtFullViewer::BuildFlag	flag = `BUILD_ALL`,
		SoQtViewer::Type	type = `BROWSER`
	)

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

◆ ~SoQtPlaneViewer()

SoQtPlaneViewer::~SoQtPlaneViewer ( )

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

◆ SoQtPlaneViewer() [2/2]

SoQtPlaneViewer::SoQtPlaneViewer	(	QWidget *	parent,
		const char *const	name,
		SbBool	embed,
		SoQtFullViewer::BuildFlag	flag,
		SoQtViewer::Type	type,
		SbBool	build
	)

protected

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

Member Function Documentation

◆ setViewing()

void SoQtPlaneViewer::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 SoQtFullViewer.

◆ setCamera()

void SoQtPlaneViewer::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 SoQtViewer.

◆ setCursorEnabled()

void SoQtPlaneViewer::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 SoQtViewer.

◆ getDefaultWidgetName()

const char * SoQtPlaneViewer::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 SoQtRenderArea.

◆ getDefaultTitle()

const char * SoQtPlaneViewer::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 SoQtRenderArea.

◆ getDefaultIconTitle()

const char * SoQtPlaneViewer::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 SoQtRenderArea.

◆ processSoEvent()

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

protectedvirtual

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.

◆ setSeekMode()

void SoQtPlaneViewer::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 SoQtViewer.

◆ actualRedraw()

void SoQtPlaneViewer::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/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 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);
  }
  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.

◆ bottomWheelStart()

void SoQtPlaneViewer::bottomWheelStart ( void )

protectedvirtual

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.

◆ bottomWheelMotion()

void SoQtPlaneViewer::bottomWheelMotion ( float value )

protectedvirtual

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.

◆ bottomWheelFinish()

void SoQtPlaneViewer::bottomWheelFinish ( void )

protectedvirtual

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.

◆ leftWheelStart()

void SoQtPlaneViewer::leftWheelStart ( void )

protectedvirtual

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.

◆ leftWheelMotion()

void SoQtPlaneViewer::leftWheelMotion ( float value )

protectedvirtual

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.

◆ leftWheelFinish()

void SoQtPlaneViewer::leftWheelFinish ( void )

protectedvirtual

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.

◆ rightWheelStart()

void SoQtPlaneViewer::rightWheelStart ( void )

protectedvirtual

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.

◆ rightWheelMotion()

void SoQtPlaneViewer::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 SoQtFullViewer.

◆ rightWheelFinish()

void SoQtPlaneViewer::rightWheelFinish ( void )

protectedvirtual

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.

◆ createViewerButtons()

void SoQtPlaneViewer::createViewerButtons	(	QWidget *	parent,
		SbPList *	buttonlist
	)

protectedvirtual

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.

◆ afterRealizeHook()

void SoQtPlaneViewer::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 SoQtRenderArea.

◆ computeSeekFinalOrientation()

virtual void SoQtPlaneViewer::computeSeekFinalOrientation ( void )

protectedvirtual

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.

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

SoQtPlaneViewer.h
SoQtPlaneViewer.cpp
PlaneViewer.cpp

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ SoQtPlaneViewer() [1/2]

◆ ~SoQtPlaneViewer()

◆ SoQtPlaneViewer() [2/2]

Member Function Documentation

◆ setViewing()

◆ setCamera()

◆ setCursorEnabled()

◆ getDefaultWidgetName()

◆ getDefaultTitle()

◆ getDefaultIconTitle()

◆ processSoEvent()

◆ setSeekMode()

◆ actualRedraw()

◆ bottomWheelStart()

◆ bottomWheelMotion()

◆ bottomWheelFinish()

◆ leftWheelStart()

◆ leftWheelMotion()

◆ leftWheelFinish()

◆ rightWheelStart()

◆ rightWheelMotion()

◆ rightWheelFinish()

◆ createViewerButtons()

◆ afterRealizeHook()

◆ computeSeekFinalOrientation()