Java JComponent.getSize方法代码示例

import javax.swing.JComponent; //导入方法依赖的package包/类
private void updateSplitLocation () {
    JComponent parent = (JComponent) panel.getParent();
    Dimension dim = parent == null ? new Dimension() : parent.getSize();
    if (dim.width <= 0 || dim.height <= 0) {
        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                updateSplitLocation();
            }
        });
        return;
    }
    FileViewComponent fileComp = getActiveFileComponent();
    int preferredHeaderHeight = fileComp.getPreferredHeaderHeight();
    int preferredHeight = fileComp.getPreferredHeight();
    int optimalLocation = preferredHeight + preferredHeaderHeight + 5;
    if (optimalLocation > dim.height / 3) {
        optimalLocation = dim.height / 3;
    }
    if (optimalLocation <= preferredHeaderHeight) {
        optimalLocation = preferredHeaderHeight * 3;
    }
    if (dividerSet && panel.splitPane.getDividerLocation() <= optimalLocation) return;
    panel.splitPane.setDividerLocation(optimalLocation);
    dividerSet = true;
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private Image getComponentImage(JComponent component) {
    // Initial component sizing & layout
    component.setSize((getClientSize().width == 0) ? component.getPreferredSize() : getClientSize()); // try to fit the component to ComponentMorpher
    component.doLayout(); // layout component

    // Correct component sizing & layout
    component.setSize(new Dimension(getClientSize().width, component.getPreferredSize().height)); // Width of component is fixed, update height
    component.doLayout(); // layout component

    // One more iteration because of nested JTextAreas
    component.setSize(new Dimension(getClientSize().width, component.getPreferredSize().height)); // Width of component is fixed, update height
    component.doLayout(); // layout component

    // Paint component into BufferedImage
    BufferedImage componentImage = new BufferedImage(component.getSize().width, component.getSize().height,
                                                     BufferedImage.TYPE_INT_RGB);
    component.printAll(componentImage.getGraphics());

    return componentImage;
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
public void paint( Graphics g, JComponent c ) {
    Dimension s = c.getSize();

    if (((JSeparator) c).getOrientation() == JSeparator.HORIZONTAL) {
        g.setColor(lineColorHorizontal);
        g.drawLine(1, 5, s.width - 2, 5);
    } else {
        g.setColor(lineColorVertical);
        g.drawLine(0, 1, 0, s.height - 2);
    }
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
private void paintBackground (final Graphics g, final JComponent c) {
  Dimension size = c.getSize();
  Graphics2D g2 = (Graphics2D) g;
  
  g2.addRenderingHints (new RenderingHints (RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON));
  
  g.setColor (c.getBackground ());
  g.fillRoundRect (0, 0, size.width, size.height, 7, 7);//button
}
 

import javax.swing.JComponent; //导入方法依赖的package包/类
/**
 * Draws the combobox itself.
 */
private void paintBox(Graphics g, JComponent c) {
	int w = c.getWidth();
	int h = c.getHeight() - 1;
	if (w <= 0 || h <= 0) {
		return;
	}

	Graphics2D g2 = (Graphics2D) g;
	g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

	if (c.isEnabled()) {
		if (Boolean.parseBoolean(String.valueOf(c.getClientProperty(RapidLookTools.PROPERTY_INPUT_BACKGROUND_DARK)))) {
			g2.setColor(Colors.COMBOBOX_BACKGROUND_DARK);
		} else {
			g2.setColor(Colors.COMBOBOX_BACKGROUND);
		}
	} else {
		g2.setColor(Colors.COMBOBOX_BACKGROUND_DISABLED);
	}

	g2.fillRoundRect(0, 0, w - 1, h, RapidLookAndFeel.CORNER_DEFAULT_RADIUS, RapidLookAndFeel.CORNER_DEFAULT_RADIUS);

	// arrow
	int ny = c.getSize().height / 2 - 3;
	int nx = c.getWidth() - 15;

	if (isDown && c.isEnabled()) {
		nx++;
		ny++;
	}
	g2.translate(nx, ny);

	if (c.isEnabled()) {
		g2.setColor(Colors.COMBOBOX_ARROW);
	} else {
		g2.setColor(Colors.COMBOBOX_ARROW_DISABLED);
	}

	w = 14;
	Polygon arrow = new Polygon(new int[] { 0, 4, 8 }, new int[] { 0, 6, 0 }, 3);
	g2.fillPolygon(arrow);

	g2.translate(-nx, -ny);
}