Java Code Examples for javax.swing.JComponent#getSize()

@Override
public void paint(Graphics g, JComponent c) {
  int tabPlacement = tabPane.getTabPlacement();
  Graphics2D g2d = (Graphics2D) g;
  g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

  Insets insets = c.getInsets();
  Dimension size = c.getSize();

  if (tabPane.getTabPlacement() == TOP) {
    g2d.drawImage(tab, insets.left, insets.top,
            size.width - insets.right - insets.left - 1,
            calculateTabAreaHeight(tabPlacement, runCount,
                    maxTabHeight),
            null);
    g2d.setColor(Color.gray);
    g2d.drawLine(size.width - 1, insets.top + 2, size.width - 1, insets.top
            + calculateTabAreaHeight(tabPlacement, runCount,
            maxTabHeight));
  }
/*System.out.println("Tab Height"+calculateTabAreaHeight(tabPlacement, runCount,
 maxTabHeight));*/
  super.paint(g2d, c);
}
 

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;
}
 

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;
}
 

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;
}
 

public void paint(Graphics g, JComponent c) {
  Font font = c.getFont();
  JToolTip mtt = (JToolTip) c;
  FontMetrics fontMetrics = mtt.getFontMetrics(font);
  Dimension dimension = c.getSize();
  int fontHeight = fontMetrics.getHeight();
  int fontAscent = fontMetrics.getAscent();
  String tipText = ((JToolTip) c).getTipText();
  if (tipText == null)
    return;
  String lines[] = tipText.split("\n");
  int num_lines = lines.length;
  int height;
  int i;

  g.setColor(c.getBackground());
  g.fillRect(0, 0, dimension.width, dimension.height);
  g.setColor(c.getForeground());
  for (i = 0, height = 2 + fontAscent; i < num_lines; i++, height += fontHeight) {
    g.drawString(lines[i], inset, height);
  }
}
 

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);
    }
}
 

protected void addJBRHitTestSpot( JComponent c, boolean subtractMenuBarMargins, List<Rectangle> hitTestSpots ) {
	Dimension size = c.getSize();
	if( size.width <= 0 || size.height <= 0 )
		return;

	Point location = SwingUtilities.convertPoint( c, 0, 0, window );
	Rectangle r = new Rectangle( location, size );
	if( subtractMenuBarMargins )
		r = FlatUIUtils.subtractInsets( r, UIScale.scale( getMenuBarMargins() ) );
	// slightly increase rectangle so that component receives mouseExit events
	r.grow( 2, 2 );
	hitTestSpots.add( r );
}
 

/**
 * Creates a MockComponent that resembles the argument component.
 * <P>
 * Note this method will traverse c and its subcomponents and may
 * temporarily change properties of inner components: such as the focused
 * state, the visibility, etc.
 * <P>
 * The goal is of this component is not to mirror the exact state of a
 * component, but rather to provide a sample image of this component in its
 * plain, unmodified, unused state.
 * 
 * @param c
 */
public MockComponent(JComponent c) {
	Dimension preferredSize = c.getPreferredSize();
	Dimension currentSize = c.getSize();

	Dimension d = new Dimension(Math.max(preferredSize.width,
			currentSize.width), Math.max(preferredSize.height,
			currentSize.height));

	if (currentSize.width == 0 || currentSize.height == 0) {
		// if the component isn't visible yet
		c.setSize(d);
		c.doLayout();
	}

	storeState(c);

	image = new BufferedImage(d.width, d.height,
			BufferedImage.TYPE_INT_ARGB);

	Graphics2D g = image.createGraphics();
	g.setComposite(AlphaComposite.Clear);
	g.fillRect(0, 0, d.width, d.height);
	g.setComposite(AlphaComposite.SrcOver);

	c.paint(g);
	g.dispose();
	setPreferredSize(d);
	setMinimumSize(d);
	setMaximumSize(d);
	setOpaque(c.isOpaque());
	setName(c.getName());
	setToolTipText(c.getToolTipText());

	restoreState(c);
}
 

@Override
public void paint(Graphics g, JComponent c)
{
    Dimension s = c.getSize();

    g.setColor(UIManager.getColor(LuckPopupMenuUIBundle.SEPEREATOR_COLOR));

    g.drawLine(0, 0, s.width, 0);
}
 

public void paint(Graphics g, JComponent c) {
     FontMetrics metrics = g.getFontMetrics();
     Dimension size = c.getSize();
     g.setColor(c.getBackground());
     g.fillRect(0, 0, size.width, size.height);
     g.setColor(c.getForeground());
     int y = metrics.getAscent() + 1;
     int h = metrics.getHeight();
     if(lines != null)
for (int i = 0; i < lines.length; i++) {
  g.drawString(lines[i], 3, y);
  y += h;
}
   }
 

private void drawLines(final JComponent canvas) {
	final Dimension size = canvas.getSize(); 
	int unit = size.height / 5; 
	for (int i = 0; i < size.height; i += unit) {
		final int y = i; 
		new Thread(new Runnable() {
			public void run() {
				drawLine(canvas, size.width, y); 
			}
		}).start(); 
	}
}
 

@Override
	public void paint( Graphics g, JComponent c )
	{
		//** 绘制border的底线
		//虚线样式
		Stroke oldStroke = ((Graphics2D)g).getStroke();
		Stroke sroke = new BasicStroke(1, BasicStroke.CAP_BUTT,
				BasicStroke.JOIN_BEVEL, 0, new float[]{2, 2}, 0);//实线，空白
		((Graphics2D)g).setStroke(sroke);//
//		super.paint(g, c);
		
		Dimension s = c.getSize();

        if ( ((JSeparator)c).getOrientation() == JSeparator.VERTICAL )
        {
//        	System.out.println("c.getBackground()c.getBackground()c.getBackground()="+c.getBackground());
          g.setColor( c.getForeground() );
          g.drawLine( 0, 0, 0, s.height );

          g.setColor( c.getBackground() );
          g.drawLine( 1, 0, 1, s.height );
        }
        else  // HORIZONTAL
        {
          g.setColor( c.getForeground() );
          g.drawLine( 0, 0, s.width, 0 );

          g.setColor( c.getBackground() );
          g.drawLine( 0, 1, s.width, 1 );
        }
		
		((Graphics2D)g).setStroke(oldStroke);
	}
 

/**
 * @see javax.swing.plaf.basic.BasicTextUI#getPreferredSize(javax.swing.JComponent)
 */
public Dimension getPreferredSize(JComponent c) {
    // The following code has been derived from BasicTextUI.
    Document  doc      = ((JTextComponent) c).getDocument();
    Insets    i        = c.getInsets();
    Dimension d        = c.getSize();
    View      rootView = getRootView((JTextComponent) c);

    if (doc instanceof AbstractDocument) {
        ((AbstractDocument) doc).readLock();
    }

    try {
        if ((d.width > (i.left + i.right)) && (d.height > (i.top + i.bottom))) {
            rootView.setSize(d.width - i.left - i.right, d.height - i.top - i.bottom);
        } else if (d.width == 0 && d.height == 0) {
            // Probably haven't been layed out yet, force some sort of
            // initial sizing.
            rootView.setSize(Integer.MAX_VALUE, Integer.MAX_VALUE);
        }

        d.width  = (int) Math.min((long) rootView.getPreferredSpan(View.X_AXIS) + (long) i.left + (long) i.right, Integer.MAX_VALUE);
        d.height = (int) Math.min((long) rootView.getPreferredSpan(View.Y_AXIS) + (long) i.top + (long) i.bottom, Integer.MAX_VALUE);
    } finally {
        if (doc instanceof AbstractDocument) {
            ((AbstractDocument) doc).readUnlock();
        }
    }

    // Fix: The preferred width is always two pixels too small on a Mac.
    d.width += 2;

    // We'd like our heights to be odd by default.
    if ((d.height & 1) == 0) {
        d.height--;
    }

    return d;
}
 

private void drawLines(final JComponent canvas) {
	final Dimension size = canvas.getSize(); 
	int unit = size.height / 5; 
	for (int i = 0; i < size.height; i += unit) {
		final int y = i; 
		new Thread(new Runnable() {
			public void run() {
				drawLine(canvas, size.width, y); 
			}
		}).start(); 
	}
}
 

private void drawLines(final JComponent canvas) {
	final Dimension size = canvas.getSize(); 
	int unit = size.height / 5; 
	for (int i = 0; i < size.height; i += unit) {
		final int y = i; 
		drawLine(canvas, size.width, y); 
	}
}
 

@Override
public void paint(Graphics g, JComponent c) {
  Dimension size = c.getSize();
  textArea.setBackground(c.getBackground());
	rendererPane.paintComponent(g, textArea, c, 1, 1, size.width-1, size.height-1, true);
}
 

public void paint( Graphics g, JComponent c ) 
	{
		boolean vertical = ((JSeparator)c).getOrientation() == SwingConstants.VERTICAL;
		Dimension size = c.getSize();
		
		//虚线样式
		Stroke oldStroke = ((Graphics2D)g).getStroke();
		Stroke sroke = new BasicStroke(1, BasicStroke.CAP_BUTT,
				BasicStroke.JOIN_BEVEL, 0, new float[]{2, 2}, 0);//实线，空白
		((Graphics2D)g).setStroke(sroke);//

		Color temp = g.getColor();
		UIDefaults table = UIManager.getLookAndFeelDefaults();
		Color shadow = table.getColor("ToolBar.shadow");
		Color highlight = table.getColor("ToolBar.highlight");

		// TODO BUG_001：不知何故，垂直分隔条并不能像水平分隔条一样，拥有默认设置的new Dimension(6, 6)
		// 而只有new Dimension(1, ...)，而当它floating时却能正常表现(只能绘出hilight而不能绘出shadow)
		//，有待深入研究，垂直的分隔条则不会有此种情况
		if (vertical) 
		{
			int x = (size.width / 2) - 1;
			
			//* 当BUG_001存在时，暂时使用以下代码解决：把本该显示hilight的
			//* 线条用shadow颜色绘制，最大可能保证ui的正常展现
//			g.setColor(shadow);
//			g.drawLine(x, 2, x, size.height - 2);
			g.setColor(shadow);//highlight);
			g.drawLine(x + 1, 2, x + 1, size.height - 2);
			
			//* 当BUG_001不存在时，应该使用以下代码
//			g.setColor(shadow);
//			g.drawLine(x, 2, x, size.height - 2);
//			g.setColor(highlight);
//			g.drawLine(x + 1, 2, x + 1, size.height - 2);
		} 
		else 
		{
			int y = (size.height / 2) - 1;
			g.setColor(shadow);
			g.drawLine(2, y, size.width - 2, y);

			g.setColor(highlight);
			g.drawLine(2, y + 1, size.width - 2, y + 1);
		}
		g.setColor(temp);

		//
		((Graphics2D)g).setStroke(oldStroke);
	}
 

/**
 * 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);
}
 

/**
 * Set the zoom factor for the Scene mananged by this ZoomManager
 * instance. The value represents a percentage (e.g. 100%) and
 * must be a positive number. Any value outside of the defined
 * range (<tt>MIN_ZOOM_PERCENT</tt> and <tt>MAX_ZOOM_PERCENT</tt>)
 * will be forced into that range.
 *
 * @param  percent  the percent value (e.g. 50 for half-size,
 *                  200 for double-size).
 * @param  center   the point at which to zoom in and keep centered.
 */
public void setZoom(int percent, Point center) {
    if (percent < MIN_ZOOM_PERCENT) {
        percent = MIN_ZOOM_PERCENT;
    } else if (percent > MAX_ZOOM_PERCENT) {
        percent = MAX_ZOOM_PERCENT;
    }

    // Find the current center point prior to zooming.
    Point sceneCenter = scene.convertViewToScene(center);
    zoomPercentage = percent;
    // Convert the percent value to the zoom factor Scene is expecting
    // (a double that acts as the multiplier to the component sizes and
    // locations, such that 0.5 is 50%, 1.0 is 100%, and 2.0 is 200%.
    double factor = ((double) percent) / 100.0d;
    scene.setZoomFactor(factor);
    // Setting the zoom factor alone is not enough, must force
    // validation and repainting of the scene for it to work.
    scene.validate();
    scene.repaint();

    // Find the new center point and scroll the view after zooming.
    Point newViewCenter = scene.convertSceneToView(sceneCenter);
    JComponent view = scene.getView();
    Rectangle visRect = view.getVisibleRect();
    visRect.x = newViewCenter.x - (center.x - visRect.x);
    visRect.y = newViewCenter.y - (center.y - visRect.y);
    Dimension viewSize = view.getSize();
    if (visRect.x + visRect.width > viewSize.width) {
        visRect.x = viewSize.width - visRect.width;
    }
    if (visRect.y + visRect.height > viewSize.height) {
        visRect.y = viewSize.height - visRect.height;
    }
    if (visRect.x < 0) {
        visRect.x = 0;
    }
    if (visRect.y < 0) {
        visRect.y = 0;
    }
    view.scrollRectToVisible(visRect);
    view.revalidate();
    view.repaint();

    // Notify registered listeners so they may update their state.
    fireZoomEvent(percent);
}