Java Component.repaint方法代码示例

import java.awt.Component; //导入方法依赖的package包/类
protected void addImpl(Component comp, Object constraints, int index) {
    int layer;
    int pos;

    if(constraints instanceof Integer) {
        layer = ((Integer)constraints).intValue();
        setLayer(comp, layer);
    } else
        layer = getLayer(comp);

    pos = insertIndexForLayer(layer, index);
    super.addImpl(comp, constraints, pos);
    comp.validate();
    comp.repaint();
    validateOptimizedDrawing();
}
 

import java.awt.Component; //导入方法依赖的package包/类
private void handleDocumentEvent(DocumentEvent e, Shape a,
									ViewFactory f) {
	int n = calculateLineCount();
	if (this.nlines != n) {
		this.nlines = n;
		WrappedSyntaxView.this.preferenceChanged(this, false, true);
		// have to repaint any views after the receiver.
		RSyntaxTextArea textArea = (RSyntaxTextArea)getContainer();
		textArea.repaint();
		// Must also revalidate container so gutter components, such
		// as line numbers, get updated for this line's new height
		Gutter gutter = RSyntaxUtilities.getGutter(textArea);
		if (gutter!=null) {
			gutter.revalidate();
			gutter.repaint();
		}
	}
	else if (a != null) {
		Component c = getContainer();
		Rectangle alloc = (Rectangle) a;
		c.repaint(alloc.x, alloc.y, alloc.width, alloc.height);
	}
}
 

import java.awt.Component; //导入方法依赖的package包/类
private void setupProgress() {
    setIcon(createProgressIcon());
    t = new Timer(100, new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent e) {
            Component comp = refComp.get();
            TreeListNode nd = refNode.get();
            if (nd == null && comp == null) {
                t.stop();
                Container p = getParent();
                if (p != null) {
                    p.remove(ProgressLabel.this);
                }
            } else {
                busyIcon.tick();
                ProgressLabel.this.repaint();
                if (nd != null) {
                    nd.fireContentChanged();
                } else {
                    comp.repaint();
                }
            }
        }
    });
    t.setRepeats(true);
    super.setVisible(false);
}
 

import java.awt.Component; //导入方法依赖的package包/类
protected void processRepaint(ViewLayoutState.Parent lsParent) {
    int firstRepaintChildIndex = getChildren().getFirstRepaintChildIndex();
    if (firstRepaintChildIndex >= 0 && firstRepaintChildIndex < getViewCount()) {
        double repY = getChildren().getMajorAxisOffset(firstRepaintChildIndex);
        repY += firstRepaintChildYSubOffset;
        int repaintY = (int)Math.floor(repY);

        int repaintX;
        int repaintHeight;
        if (isRepaintTillEnd()) {
            repaintX = 0; // till end should always be since begining
            repaintHeight = lastAllocationHeight;
        } else { // repaint only inside one child
            repaintX = (int)Math.floor(firstRepaintChildXSubOffset);
            double repYEnd = repY
                + getChild(firstRepaintChildIndex).getLayoutMajorAxisPreferredSpan();
            repaintHeight = (int)Math.ceil(repYEnd) - repaintY;
        }

        int repaintWidth = lastAllocationWidth - repaintX;
        // Shift repaintX by lastAllocationX
        repaintX += lastAllocationX;

        if (debugRepaint) {
            System.err.println("REPAINT(childIndex=" + firstRepaintChildIndex // NOI18N
                + ", rect(" + repaintX + ", " + repaintY // NOI18N
                + ", " + repaintWidth + ", " + repaintHeight + "))" // NOI18N
            ); // NOI18N
        }

        Component c = getContainer();
        if (c != null) {
            c.repaint(repaintX, repaintY, repaintWidth, repaintHeight);
        }
    }
}
 

import java.awt.Component; //导入方法依赖的package包/类
public void setText(String text) {
    if (button != null) {
        String _text = button.getText();
        button.setText(text);
        
        Component parent = getParent();
        if (!Objects.equals(text, _text) && parent != null) {
            parent.invalidate();
            parent.revalidate();
            parent.repaint();
        }
    }
}
 

import java.awt.Component; //导入方法依赖的package包/类
public void setIcon(Icon icon) {
    if (button != null) {
        Icon _icon = button.getIcon();
        button.setIcon(icon);
        
        Component parent = getParent();
        if (!Objects.equals(icon, _icon) && parent != null) {
            parent.invalidate();
            parent.revalidate();
            parent.repaint();
        }
    }
}
 

import java.awt.Component; //导入方法依赖的package包/类
@Override
public void mouseMoved(MouseEvent e) {
	if(graphics !=null ){
		LinkedPanel panel = (LinkedPanel) e.getComponent();
		Graphics2D g = (Graphics2D) panel.getGraphics();
		g.setTransform(panel.getTransform());
		
		float timeOffset = LayerUtilities.pixelsToUnits(g, e.getX(), true);
		float time = cs.getMin(Axis.X) + timeOffset;
		float frequencyOffset = LayerUtilities.pixelsToUnits(g, panel.getHeight() - e.getY(), false);
		float frequency = cs.getMin(Axis.Y) + frequencyOffset;
		
		float timeDiameter = LayerUtilities.pixelsToUnits(g, 10, true) * 2f;
		float frequencyDiameter = LayerUtilities.pixelsToUnits(g, 10, false)* 2f;
		
		selectedEventPoint = null;
		for(NFFTEventPoint eventPoint : fileInfo.eventpoints){
			float time1 = timeIndexToTime(eventPoint.t) - timeDiameter/2.0f ;
			float frequencyInCents1 = (frequencyIndexToCents(eventPoint.f)) - frequencyDiameter/2.0f;	
			
			if( time >= time1 && time <= time1+timeDiameter && 
				frequency >= frequencyInCents1 && frequency <= frequencyInCents1 + frequencyDiameter
				){
				selectedEventPoint = eventPoint;
			}	
		}
		if(selectedEventPoint!=null && selectedEventPoint!=prevSelectedEventPoint ){
			prevSelectedEventPoint = selectedEventPoint;
			System.out.println(String.format("Selected (t,f,fe,c): (%d,%d,%02fHz,%02f)",selectedEventPoint.t,selectedEventPoint.f,selectedEventPoint.frequencyEstimate,selectedEventPoint.contrast));
			e.getComponent().getParent().invalidate();
			for(Component c : e.getComponent().getParent().getComponents()){
				if(c instanceof LinkedPanel){
					c.repaint();
				}
			}
		}
	}
}
 

import java.awt.Component; //导入方法依赖的package包/类
private static void animateComponent(final Component comp) {
    Thread t = new Thread(new Runnable() {
        public void run() {
            do {
                try {
                    Thread.sleep(50);
                } catch (InterruptedException ex) {}
                comp.repaint();
            } while (!done);
        }
    });
    t.start();
}
 

import java.awt.Component; //导入方法依赖的package包/类
public static void main(final String[] args) throws AWTException {
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    sleep();
    label.repaint();// first paint
    sleep();
    label.repaint();// incremental paint
    sleep();

    Robot robot = new Robot();
    robot.setAutoDelay(50);
    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

import java.awt.Component; //导入方法依赖的package包/类
public static void main(final String[] args) throws AWTException {
    ExtendedRobot robot = new ExtendedRobot();
    robot.setAutoDelay(50);
    final Frame frame = new Frame();
    final Component label = new PaintNativeOnUpdate();
    frame.setBackground(Color.RED);
    frame.add(label);
    frame.setSize(300, 300);
    frame.setUndecorated(true);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    robot.waitForIdle(1000);
    label.repaint();// first paint
    robot.waitForIdle(1000);
    label.repaint();// incremental paint
    robot.waitForIdle(1000);

    Point point = label.getLocationOnScreen();
    Color color = robot.getPixelColor(point.x + label.getWidth() / 2,
                                      point.y + label.getHeight() / 2);
    if (!color.equals(Color.GREEN)) {
        System.err.println("Expected color = " + Color.GREEN);
        System.err.println("Actual color = " + color);
        throw new RuntimeException();
    }
    frame.dispose();
}
 

import java.awt.Component; //导入方法依赖的package包/类
/**
 * Process pending repaint requests from children.
 * <br>
 * Children are guaranteed to be non-null once this method gets called.
 */
protected void processRepaint(ViewLayoutState.Parent lsParent) {
    if (lsParent != null) { // parent view is ViewLayoutState.Parent
        int firstRepaintChildIndex = children.getFirstRepaintChildIndex();
        double majorAxisOffset = children.getMajorAxisOffset(firstRepaintChildIndex);
        double repaintMajorOffset;
        double repaintMajorSpan;
        float repaintMinorOffset;
        float repaintMinorSpan;
        if (isRepaintTillEnd()
            || firstRepaintChildIndex >= getViewCount() // bit strange but possible after last child remove
        ) {
            if (isMajorAxesOrthogonal()) {
                repaintMajorOffset = 0;
                repaintMajorSpan = 0; // till end of view's span in parent
                repaintMinorOffset = (float)majorAxisOffset;
                repaintMinorSpan = 0; // till parent view minor span end

            } else { // major axes equal
                repaintMajorOffset = majorAxisOffset;
                repaintMajorSpan = 0; // till end of view's span in parent
                repaintMinorOffset = 0;
                repaintMinorSpan = 0; // till parent view minor span end
            }

        } else { // repainting just single child that did not change major axis span
            double majorAxisSpan = getChild(firstRepaintChildIndex).getLayoutMajorAxisPreferredSpan();
            if (isMajorAxesOrthogonal()) {
                repaintMajorOffset = 0;
                repaintMajorSpan = 0; // till end of view's span in parent
                repaintMinorOffset = (float)majorAxisOffset;
                repaintMinorSpan = (float)majorAxisSpan;

            } else { // major axes equal
                repaintMajorOffset = majorAxisOffset;
                repaintMajorSpan = majorAxisSpan;
                repaintMinorOffset = 0;
                repaintMinorSpan = 0; // till parent view minor span end
            }
        }
        
        lsParent.repaint(this, repaintMajorOffset, repaintMajorSpan,
            repaintMinorOffset, repaintMinorSpan);
        
    } else { // do not know allocation here => repaint whole component
        Component c = getContainer();
        if (c != null) {
            c.repaint();
        }
    }
}
 

import java.awt.Component; //导入方法依赖的package包/类
public void dragDropEnd(DragSourceDropEvent e) {
    if( isButtonDrag ) {
        Component sourceComponent = e.getDragSourceContext().getComponent();
        if( sourceComponent instanceof JButton ) {
            ((JButton)sourceComponent).getModel().setRollover( false );
        }
        sourceComponent.repaint();
        resetDropGesture();
        if( e.getDropSuccess() == false && !isInToolbarPanel( e.getLocation() ) ) {
            //TODO catch ESC key
            removeButton( e.getDragSourceContext().getTransferable() );
        }
    } else if( isToolbarDrag ) {
        Point newLocationOnScreen = null;

        boolean save = false;
        if( null != currentRow ) {
            //the cursor is above some toolbar row, we can proceed with the drop
            newLocationOnScreen = currentRow.drop();
            if( sourceRow != currentRow ) {
                //clean up the row which we dragged from
                sourceRow.dragSuccess();
                config.removeEmptyRows();
            }
            save = true;
        } else if( null != sourceRow ) {
            //cursor is outside the toolbar area, abort the drop
            newLocationOnScreen = sourceRow.dragAbort();
            save = true;
        }
        if( null != dragWindow ) {
            if( null != newLocationOnScreen ) {
                animateDragWindow(newLocationOnScreen);
            } else {
                dragWindow.dispose();
            }
            dragWindow = null;
        }
        config.maybeRemoveLastRow();
        if( save ) {
            config.refresh();
            config.save();
        }
    }
    isButtonDrag = false;
    isToolbarDrag = false;
}
 

import java.awt.Component; //导入方法依赖的package包/类
@Override
public void focusGained(FocusEvent e) {
	Component c = (Component) e.getSource();
	c.repaint();
}
 

import java.awt.Component; //导入方法依赖的package包/类
@Override
public void mouseMoved(MouseEvent e) {
	if(graphics !=null ){
		LinkedPanel panel = (LinkedPanel) e.getComponent();
		Graphics2D g = (Graphics2D) panel.getGraphics();
		g.setTransform(panel.getTransform());
		
		float timeOffset = LayerUtilities.pixelsToUnits(g, e.getX(), true);
		float time = cs.getMin(Axis.X) + timeOffset;
		float frequencyOffset = LayerUtilities.pixelsToUnits(g, panel.getHeight() - e.getY(), false);
		float frequency = cs.getMin(Axis.Y) + frequencyOffset;
		
		float timeDiameter = LayerUtilities.pixelsToUnits(g, 10, true) * 2f;
		float frequencyDiameter = LayerUtilities.pixelsToUnits(g, 10, false)* 2f;
		
		selectedEventPoint = null;
		for(NFFTEventPoint eventPoint : fileInfo.eventpoints){
			float time1 = timeIndexToTime(eventPoint.t) - timeDiameter/2.0f ;
			float frequencyInCents1 = (frequencyIndexToCents(eventPoint.f)) - frequencyDiameter/2.0f;	
			
			if( time >= time1 && time <= time1+timeDiameter && 
				frequency >= frequencyInCents1 && frequency <= frequencyInCents1 + frequencyDiameter
				){
				selectedEventPoint = eventPoint;
			}	
		}
		
		if(selectedEventPoint!=null){
			NFFTAudioFileInfo.clearSelectedFingerprints();
			for(NFFTFingerprint print: fileInfo.fingerprints){
				if((print.t1==selectedEventPoint.t && print.f1==selectedEventPoint.f) || (print.t2==selectedEventPoint.t && print.f2==selectedEventPoint.f)){
					NFFTAudioFileInfo.addFingerprintToSelection(print);
				}
			}
			e.getComponent().getParent().invalidate();
			for(Component c : e.getComponent().getParent().getComponents()){
				if(c instanceof LinkedPanel){
					c.repaint();
				}
			}
		}
	}
	
}
 

import java.awt.Component; //导入方法依赖的package包/类
/**
 * Calls component.repaint() on the Components passed as parameters of the
 * method.
 *
 * @param components
 */
private void repaint(Component... components) {
    for (Component c : components) {
        c.repaint();
    }
}