Examples of ae.java.awt.Component$ProxyCapabilities

ae.java.awt.Component
This is a proxy capabilities class used when a FlipBufferStrategy is created instead of the requested Blit strategy. @see ae.sun.awt.SunGraphicsEnvironment#isFlipStrategyPreferred(ComponentPeer)

     *
     * @param   target Component to <code>paint</code> or <code>update</code>
     * @since   1.4
     */
    public void paint(Object target, boolean shouldClearRectBeforePaint) {
        Component comp = (Component)target;


        if (isEmpty()) {
            return;
        }


        if (!comp.isVisible()) {
            return;
        }


        RepaintArea ra = this.cloneAndReset();


        if (!subtract(ra.paintRects[VERTICAL], ra.paintRects[HORIZONTAL])) {
            subtract(ra.paintRects[HORIZONTAL], ra.paintRects[VERTICAL]);
        }


        if (ra.paintRects[HORIZONTAL] != null && ra.paintRects[VERTICAL] != null) {
            Rectangle paintRect = ra.paintRects[HORIZONTAL].union(ra.paintRects[VERTICAL]);
            int square = paintRect.width * paintRect.height;
            int benefit = square - ra.paintRects[HORIZONTAL].width
                * ra.paintRects[HORIZONTAL].height - ra.paintRects[VERTICAL].width
                * ra.paintRects[VERTICAL].height;
            // if benefit is comparable with bounding box
            if (MAX_BENEFIT_RATIO * benefit < square) {
                ra.paintRects[HORIZONTAL] = paintRect;
                ra.paintRects[VERTICAL] = null;
            }
        }
        for (int i = 0; i < paintRects.length; i++) {
            if (ra.paintRects[i] != null
                && !ra.paintRects[i].isEmpty())
            {
                // Should use separate Graphics for each paint() call,
                // since paint() can change Graphics state for next call.
                Graphics g = comp.getGraphics();
                if (g != null) {
                    try {
                        g.setClip(ra.paintRects[i]);
                        if (i == UPDATE) {
                            updateComponent(comp, g);

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   boolean useBelowTheSpotInput() {
        return belowTheSpotInputRequested && inputMethodSupportsBelowTheSpot;
    }


    private boolean haveActiveClient() {
        Component client = getClientComponent();
        return client != null
               && client.getInputMethodRequests() != null;
    }

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        }


        // Ignore focus events that relate to the InputMethodWindow of this context.
        // This is a workaround.  Should be removed after 4452384 is fixed.
        if (event instanceof FocusEvent) {
            Component opposite = ((FocusEvent)event).getOppositeComponent();
            if ((opposite != null) &&
                (getComponentWindow(opposite) instanceof InputMethodWindow) &&
                (opposite.getInputContext() == this)) {
                return;
            }
        }


        InputMethod inputMethod = getInputMethod();

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            inputMethod.notifyClientWindowChange(clientWindowLocation);
        }
    }


    private synchronized void addClientWindowListeners() {
        Component client = getClientComponent();
        if (client == null) {
            return;
        }
        Window window = getComponentWindow(client);
        if (window == null) {

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                AttributedCharacterIterator text, int committedCharacterCount,
                TextHitInfo caret, TextHitInfo visiblePosition) {
        // We need to record the client component as the source so
        // that we have correct information if we later have to break up this
        // event into key events.
        Component source;


        source = getClientComponent();
        if (source != null) {
            InputMethodEvent event = new InputMethodEvent(source,
                    id, text, committedCharacterCount, caret, visiblePosition);


            if (haveActiveClient() && !useBelowTheSpotInput()) {
                source.dispatchEvent(event);
            } else {
                getCompositionAreaHandler(true).processInputMethodEvent(event);
            }
        }
    }

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    public synchronized void setComponent(Component c) {
        if (component == c || component != null && component.equals(c))
            return;


        Component     old;
        ComponentPeer oldPeer = null;


        if ((old = component) != null) {
            clearAutoscroll();


            component = null;


            if (componentPeer != null) {
                oldPeer = componentPeer;
                removeNotify(componentPeer);
            }


            old.setDropTarget(null);


        }


        if ((component = c) != null) try {
            c.setDropTarget(this);
        } catch (Exception e) { // undo the change
            if (old != null) {
                old.setDropTarget(this);
                addNotify(oldPeer);
            }
        }
    }

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    /**
     * actual processing on EventQueue Thread
     */


    protected void processEnterMessage(SunDropTargetEvent event) {
        Component  c    = (Component)event.getSource();
        DropTarget dt   = c.getDropTarget();
        Point      hots = event.getPoint();


        local = getJVMLocalSourceTransferable();


        if (currentDTC != null) { // some wreckage from last time
            currentDTC.removeNotify();
            currentDTC = null;
        }


        if (c.isShowing() && dt != null && dt.isActive()) {
            currentDT  = dt;
            currentDTC = currentDT.getDropTargetContext();


            currentDTC.addNotify(this);

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    /**
     *
     */


    protected void processExitMessage(SunDropTargetEvent event) {
        Component         c   = (Component)event.getSource();
        DropTarget        dt  = c.getDropTarget();
        DropTargetContext dtc = null;


        if (dt == null) {
            currentDT = null;
            currentT  = null;

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     *
     */


    protected void processMotionMessage(SunDropTargetEvent event,
                                      boolean operationChanged) {
        Component         c    = (Component)event.getSource();
        Point             hots = event.getPoint();
        int               id   = event.getID();
        DropTarget        dt   = c.getDropTarget();
        DropTargetContext dtc  = null;


        if (c.isShowing() && (dt != null) && dt.isActive()) {
            if (currentDT != dt) {
                if (currentDTC != null) {
                    currentDTC.removeNotify();
                }

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    /**
     *
     */


    protected void processDropMessage(SunDropTargetEvent event) {
        Component  c    = (Component)event.getSource();
        Point      hots = event.getPoint();
        DropTarget dt   = c.getDropTarget();


        dropStatus   = STATUS_WAIT; // drop pending ACK
        dropComplete = false;


        if (c.isShowing() && dt != null && dt.isActive()) {
            DropTargetContext dtc = dt.getDropTargetContext();


            currentDT = dt;


            if (currentDTC != null) {

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Related Classes of ae.java.awt.Component$ProxyCapabilities

ae.java.awt.dnd.DropTarget

ae.java.awt.peer.ComponentPeer

ae.java.awt.peer.ContainerPeer

ae.sun.awt.AppContext

ae.sun.awt.dnd.SunDropTargetContextPeer

ae.sun.awt.im.InputContext

ae.sun.awt.im.InputMethodContext

ae.sun.awt.RepaintArea

ae.sun.java2d.pipe.hw.ExtendedBufferCapabilities

ae.sun.java2d.pipe.Region

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