Top level GL window. More...

#include <ome/qtwidgets/GLWindow.h>

Inheritance diagram for ome::qtwidgets::GLWindow:

Collaboration diagram for ome::qtwidgets::GLWindow:

Public Slots
void	renderLater ()
	Render a frame at the next opportunity. More...

void	renderNow ()
	Render a frame immediately. More...

void	logMessage (QOpenGLDebugMessage message)
	Log a GL debug message. More...

Public Member Functions
	GLWindow (QWindow *parent=0)
	Create a GL window. More...

	~GLWindow ()
	Destructor.

virtual void	render (QPainter *painter)
	Render using a QPainter. More...

virtual void	render ()
	Render using OpenGL. More...

virtual void	initialize ()
	Handle initialization of the window.

virtual void	resize ()
	Handle resizing of the window.

void	setAnimating (bool animating)
	Enable or disable animating. More...

Protected Member Functions
bool	event (QEvent *event)
	Handle events. More...

void	exposeEvent (QExposeEvent *event)
	Handle expose events. More...

void	resizeEvent (QResizeEvent *event)
	Handle resize events. More...

QOpenGLContext *	context () const
	Get GL context. More...

void	makeCurrent ()
	Make the GL context for this window the current context.

Private Attributes
bool	update_pending
	Update at next opportunity?

bool	animating
	Animation enabled?

QOpenGLContext *	glcontext
	OpenGL context.

QOpenGLPaintDevice *	device
	OpenGL paint device (if render is not reimplemented in subclass).

QOpenGLDebugLogger *	logger
	OpenGL debug logger (if logging enabled).

Detailed Description

Top level GL window.

This is a standard QWindow, however it contains no child widgets; it's simply a surface on which to paint GL rendered content.

Constructor & Destructor Documentation

ome::qtwidgets::GLWindow::GLWindow ( QWindow * parent = 0 )

explicit

Create a GL window.

Parameters

parent the parent of this object.

Member Function Documentation

QOpenGLContext * ome::qtwidgets::GLWindow::context ( ) const

protected

Get GL context.

Returns: the GL context.

References glcontext.

bool ome::qtwidgets::GLWindow::event ( QEvent * event )

protected

Handle events.

Used to handle timer events and trigger a rendering pass.

Parameters

event the event to handle.

Returns: true if the event was handled.

References renderNow(), and update_pending.

void ome::qtwidgets::GLWindow::exposeEvent ( QExposeEvent * event )

protected

Handle expose events.

Trigger a rendering pass on exposure.

Parameters

event the event to handle.

References renderNow().

void ome::qtwidgets::GLWindow::logMessage ( QOpenGLDebugMessage message )

slot

Log a GL debug message.

This currently logs to stderr due to the high log volume when debugging is enabled.

Parameters

message the message to log.

Referenced by renderNow().

Here is the caller graph for this function:

void ome::qtwidgets::GLWindow::render ( QPainter * painter )

virtual

Render using a QPainter.

Does nothing by default. Subclass to paint with QPainter on the OpenGL paint device.

Parameters

painter the painter for rendering.

void ome::qtwidgets::GLWindow::render ( )

virtual

Render using OpenGL.

By default sets up a QOpenGLPaintDevice and calls render(QPainter*). Subclass and reimplement to handle rendering directly.

Reimplemented in ome::qtwidgets::GLView2D.

References device, and render().

Referenced by render(), and renderNow().

Here is the caller graph for this function:

void ome::qtwidgets::GLWindow::renderLater ( )

slot

Render a frame at the next opportunity.

Mark the window for requiring a full render pass at a future point in time. This will usually be for the next frame.

References update_pending.

Referenced by renderNow(), setAnimating(), ome::qtwidgets::GLView2D::setChannelMax(), ome::qtwidgets::GLView2D::setChannelMin(), ome::qtwidgets::GLView2D::setPlane(), ome::qtwidgets::GLView2D::setXTranslation(), ome::qtwidgets::GLView2D::setYTranslation(), ome::qtwidgets::GLView2D::setZoom(), ome::qtwidgets::GLView2D::setZRotation(), and ome::qtwidgets::GLView2D::timerEvent().

Here is the caller graph for this function:

void ome::qtwidgets::GLWindow::renderNow ( )

slot

Render a frame immediately.

This method also handles initialization of the GL context if it has not been called previously.

References animating, glcontext, initialize(), logger, logMessage(), makeCurrent(), render(), and renderLater().

Referenced by event(), and exposeEvent().

Here is the caller graph for this function:

void ome::qtwidgets::GLWindow::resizeEvent ( QResizeEvent * event )

protected

Handle resize events.

Parameters

event the event to handle.

References glcontext, and resize().

void ome::qtwidgets::GLWindow::setAnimating ( bool animating )

Enable or disable animating.

If enabled, this will trigger a full render pass for every frame using a timer. If disabled, rendering must be triggered by hand.

Parameters

animating true to enable continuous animation or false to disable.

References animating, and renderLater().

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

ome/qtwidgets/GLWindow.h
ome/qtwidgets/GLWindow.cpp

Public Slots

Public Member Functions

Protected Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation