Class GLCanvas

    • Constructor Detail

      • GLCanvas

        public GLCanvas​(Composite parent,
                        int style,
                        GLData data)
        Create a GLCanvas widget using the attributes described in the GLData object provided.
        Parameters:
        parent - a composite widget
        style - the bitwise OR'ing of widget styles
        data - the requested attributes of the GLCanvas
        Throws:
        IllegalArgumentException -
        • ERROR_NULL_ARGUMENT when the data is null
        • ERROR_UNSUPPORTED_DEPTH when the requested attributes cannot be provided
    • Method Detail

      • getGLData

        public GLData getGLData()
        Returns a GLData object describing the created context.
        Returns:
        GLData description of the OpenGL context attributes
        Throws:
        SWTException -
        • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
        • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
      • isCurrent

        public boolean isCurrent()
        Returns a boolean indicating whether the receiver's OpenGL context is the current context.
        Returns:
        true if the receiver holds the current OpenGL context, false otherwise
        Throws:
        SWTException -
        • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
        • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
      • setCurrent

        public void setCurrent()
        Sets the OpenGL context associated with this GLCanvas to be the current GL context.
        Throws:
        SWTException -
        • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
        • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
      • swapBuffers

        public void swapBuffers()
        Swaps the front and back color buffers.
        Throws:
        SWTException -
        • ERROR_WIDGET_DISPOSED - if the receiver has been disposed
        • ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver