man SoXtGLWidget () - wrapper around GLwMDraw for OpenGL rendering in a motif widget
NAME
SoXtGLWidget - wrapper around GLwMDraw for OpenGL rendering in a motif widget
INHERITS FROM
SoXtComponent > SoXtGLWidget
SYNOPSIS
#include <Inventor/Xt/SoXtGLWidget.h>
Methods from class SoXtGLWidget:
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setBorder(SbBool onOrOff)
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isBorder() const
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setDoubleBuffer(SbBool onOrOff)
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isDoubleBuffer()
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getNormalWindow()
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getOverlayWindow()
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getNormalContext()
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getOverlayContext()
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getNormalWidget()
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getOverlayWidget()
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setNormalVisual(XVisualInfo *vis)
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getNormalVisual()
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setOverlayVisual(XVisualInfo *vis)
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getOverlayVisual()
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setDrawToFrontBufferEnable(SbBool enableFlag)
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isDrawToFrontBufferEnable() const
Methods from class SoXtComponent:
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show()
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hide()
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isVisible()
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getWidget() const
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isTopLevelShell() const
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getShellWidget() const
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getParentWidget() const
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setSize(const SbVec2s &size)
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getSize()
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getDisplay()
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setTitle(const char *newTitle)
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getTitle() const
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setIconTitle(const char *newIconTitle)
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getIconTitle() const
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setWindowCloseCallback(SoXtComponentCB *func, void *data = NULL)
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getComponent(Widget w)
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getWidgetName() const
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getClassName() const
DESCRIPTION
This abstract base class provides a C++ wrapper around the GLwMDraw widget. It allows OpenGL rendering to be performed within a motif widget and is used by the SoXtRenderArea. SoXtGlWidget uses a form widget around two separate GLwMDraw widgets (one for single and one for double buffering), with routines to return the appropriate windows. Subclasses only need to redefine the redraw() routine for rendering and processEvent() routine if they are interested in receiving X events.
METHODS
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setBorder(SbBool onOrOff)
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isBorder() const
Show and hide the border around the glx widgets (thickness 3). Default is no border (FALSE). (The SoXtRenderArea subclass defaults turns the border on by default.)
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setDoubleBuffer(SbBool onOrOff)
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isDoubleBuffer()
Routine which dynamically changes between single and double buffering. Default is double buffer off. (The SoXtRenderArea subclass makes it double buffer by default.)
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getNormalWindow()
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getOverlayWindow()
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getNormalContext()
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getOverlayContext()
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getNormalWidget()
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getOverlayWidget()
Get the current normal and overlay GLX windows, contexes and widgets, which are needed as arguments to glXMakeCurrent() when doing drawing in the normal or overlay planes.
Note: These should not be cached
by users because they will change as single/double buffering changes.
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setNormalVisual(XVisualInfo *vis)
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getNormalVisual()
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setOverlayVisual(XVisualInfo *vis)
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getOverlayVisual()
Specify exactly what the visual should be for the normal and overlay window. This allows the user to create all possible visuals supported by OpenGL. The XVisualInfo structure should be a valid OpenGL visual returned
by glXChooseVisual(). This structure will be copied by the SoXtGLWidget; the application is responsible for freeing the visual info with XFree() when done. (The methods for setting the visual are virtual so that derived classes can know when the visual is changing.)
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setDrawToFrontBufferEnable(SbBool enableFlag)
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isDrawToFrontBufferEnable() const
Inventor 2.1 changed the behavior of double buffered windows to redraw temporary to the front buffer when an expose event is received or when a new sceneGraph() is set on an SoXtRenderArea. This does not
apply for general interactive rendering. The idea is that it is better to see something redraw (especially if it is slow) than to see garbage in the window (in the expose case) or an old invalid scene
graph (in the SoXtRenderArea::setSceneGraph() case).
This API enables you to turn this functionality OFF if for some reason you are unable to prevent repeated expose from causing a redraw (which is bad
and should be fixed, as it gets worse for large scenes). This will be the case for example if you can't create a pulldown menu in the popup planes.
NOTE: this api might be removed in some future releases
and is only intended as a porting help for Inventor 2.0 to 2.1
SEE ALSO
SoXtComponent, SoXtRenderArea