java.awt

Class Component.FlipBufferStrategy

    • Field Detail

      • numBuffers

        protected int numBuffers
        The number of buffers
      • drawBuffer

        protected Image drawBuffer
        The drawing buffer
      • drawVBuffer

        protected VolatileImage drawVBuffer
        The drawing buffer as a volatile image
      • validatedContents

        protected boolean validatedContents
        Whether or not the drawing buffer has been recently restored from a lost state.
    • Method Detail

      • createBuffers

        protected void createBuffers(int numBuffers,
                         BufferCapabilities caps)
                              throws AWTException
        Creates one or more complex, flipping buffers with the given capabilities.
        Parameters:
        numBuffers - number of buffers to create; must be greater than one
        caps - the capabilities of the buffers. BufferCapabilities.isPageFlipping must be true.
        Throws:
        AWTException - if the capabilities supplied could not be supported or met
        IllegalStateException - if the component has no peer
        IllegalArgumentException - if numBuffers is less than two, or if BufferCapabilities.isPageFlipping is not true.
        See Also:
        BufferCapabilities.isPageFlipping()
      • getBackBuffer

        protected Image getBackBuffer()
        Returns:
        direct access to the back buffer, as an image.
        Throws:
        IllegalStateException - if the buffers have not yet been created
      • flip

        protected void flip(BufferCapabilities.FlipContents flipAction)
        Flipping moves the contents of the back buffer to the front buffer, either by copying or by moving the video pointer.
        Parameters:
        flipAction - an integer value describing the flipping action for the contents of the back buffer. This should be one of the values of the BufferCapabilities.FlipContents property.
        Throws:
        IllegalStateException - if the buffers have not yet been created
        See Also:
        BufferCapabilities.getFlipContents()
      • destroyBuffers

        protected void destroyBuffers()
        Destroys the buffers created through this object
      • getDrawGraphics

        public Graphics getDrawGraphics()
        Description copied from class: BufferStrategy
        Creates a graphics context for the drawing buffer. This method may not be synchronized for performance reasons; use of this method by multiple threads should be handled at the application level. Disposal of the graphics object obtained must be handled by the application.
        Specified by:
        getDrawGraphics in class BufferStrategy
        Returns:
        the graphics on the drawing buffer. This method may not be synchronized for performance reasons; use of this method by multiple threads should be handled at the application level. Disposal of the graphics object must be handled by the application.
      • revalidate

        protected void revalidate()
        Restore the drawing buffer if it has been lost
      • contentsLost

        public boolean contentsLost()
        Description copied from class: BufferStrategy
        Returns whether the drawing buffer was lost since the last call to getDrawGraphics. Since the buffers in a buffer strategy are usually type VolatileImage, they may become lost. For a discussion on lost buffers, see VolatileImage.
        Specified by:
        contentsLost in class BufferStrategy
        Returns:
        whether the drawing buffer was lost since the last call to getDrawGraphics
        See Also:
        VolatileImage
      • contentsRestored

        public boolean contentsRestored()
        Description copied from class: BufferStrategy
        Returns whether the drawing buffer was recently restored from a lost state and reinitialized to the default background color (white). Since the buffers in a buffer strategy are usually type VolatileImage, they may become lost. If a surface has been recently restored from a lost state since the last call to getDrawGraphics, it may require repainting. For a discussion on lost buffers, see VolatileImage.
        Specified by:
        contentsRestored in class BufferStrategy
        Returns:
        whether the drawing buffer was recently restored from a lost state and reinitialized to the default background color (white)
        See Also:
        VolatileImage
      • show

        public void show()
        Makes the next available buffer visible by either blitting or flipping.
        Specified by:
        show in class BufferStrategy

Traduction non disponible

Les API Java ne sont pas encore traduites en français sur l'infobrol. Seule la version anglaise est disponible pour l'instant.

Table des matières Haut

Document créé le 30/08/2006, dernière modification le 29/10/2018
Source du document imprimé : https://www.gaudry.be/java-api-rf-java/awt/Component.FlipBufferStrategy.html

L'infobrol est un site personnel dont le contenu n'engage que moi. Le texte est mis à disposition sous licence CreativeCommons(BY-NC-SA). Plus d'info sur les conditions d'utilisation et sur l'auteur.

Références

  1. Consulter le document html Langue du document :fr Manuel PHP : https://docs.oracle.com, Component.FlipBufferStrategy

Ces références et liens indiquent des documents consultés lors de la rédaction de cette page, ou qui peuvent apporter un complément d'information, mais les auteurs de ces sources ne peuvent être tenus responsables du contenu de cette page.
L'auteur de ce site est seul responsable de la manière dont sont présentés ici les différents concepts, et des libertés qui sont prises avec les ouvrages de référence. N'oubliez pas que vous devez croiser les informations de sources multiples afin de diminuer les risques d'erreurs.

Table des matières Haut