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package javax.swing.plaf.synth;

import java.awt.*;
import java.awt.geom.AffineTransform;
import javax.swing.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicProgressBarUI;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeEvent;
import sun.swing.SwingUtilities2;

Provides the Synth L&F UI delegate for JProgressBar.
Author:Joshua Outwater
Since:1.7
/** * Provides the Synth L&F UI delegate for * {@link javax.swing.JProgressBar}. * * @author Joshua Outwater * @since 1.7 */
public class SynthProgressBarUI extends BasicProgressBarUI implements SynthUI, PropertyChangeListener { private SynthStyle style; private int progressPadding; private boolean rotateText; // added for Nimbus LAF private boolean paintOutsideClip; private boolean tileWhenIndeterminate; //whether to tile indeterminate painting private int tileWidth; //the width of each tile private Dimension minBarSize; // minimal visible bar size private int glowWidth; // Glow around the bar foreground
Creates a new UI object for the given component.
Params:
  • x – component to create UI object for
Returns:the UI object
/** * Creates a new UI object for the given component. * * @param x component to create UI object for * @return the UI object */
public static ComponentUI createUI(JComponent x) { return new SynthProgressBarUI(); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected void installListeners() { super.installListeners(); progressBar.addPropertyChangeListener(this); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected void uninstallListeners() { super.uninstallListeners(); progressBar.removePropertyChangeListener(this); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected void installDefaults() { updateStyle(progressBar); } private void updateStyle(JProgressBar c) { SynthContext context = getContext(c, ENABLED); SynthStyle oldStyle = style; style = SynthLookAndFeel.updateStyle(context, this); setCellLength(style.getInt(context, "ProgressBar.cellLength", 1)); setCellSpacing(style.getInt(context, "ProgressBar.cellSpacing", 0)); progressPadding = style.getInt(context, "ProgressBar.progressPadding", 0); paintOutsideClip = style.getBoolean(context, "ProgressBar.paintOutsideClip", false); rotateText = style.getBoolean(context, "ProgressBar.rotateText", false); tileWhenIndeterminate = style.getBoolean(context, "ProgressBar.tileWhenIndeterminate", false); tileWidth = style.getInt(context, "ProgressBar.tileWidth", 15); // handle scaling for sizeVarients for special case components. The // key "JComponent.sizeVariant" scales for large/small/mini // components are based on Apples LAF String scaleKey = (String)progressBar.getClientProperty( "JComponent.sizeVariant"); if (scaleKey != null){ if ("large".equals(scaleKey)){ tileWidth *= 1.15; } else if ("small".equals(scaleKey)){ tileWidth *= 0.857; } else if ("mini".equals(scaleKey)){ tileWidth *= 0.784; } } minBarSize = (Dimension)style.get(context, "ProgressBar.minBarSize"); glowWidth = style.getInt(context, "ProgressBar.glowWidth", 0); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected void uninstallDefaults() { SynthContext context = getContext(progressBar, ENABLED); style.uninstallDefaults(context); style = null; }
{@inheritDoc}
/** * {@inheritDoc} */
@Override public SynthContext getContext(JComponent c) { return getContext(c, getComponentState(c)); } private SynthContext getContext(JComponent c, int state) { return SynthContext.getContext(c, style, state); } private int getComponentState(JComponent c) { return SynthLookAndFeel.getComponentState(c); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override public int getBaseline(JComponent c, int width, int height) { super.getBaseline(c, width, height); if (progressBar.isStringPainted() && progressBar.getOrientation() == JProgressBar.HORIZONTAL) { SynthContext context = getContext(c); Font font = context.getStyle().getFont(context); FontMetrics metrics = progressBar.getFontMetrics(font); return (height - metrics.getAscent() - metrics.getDescent()) / 2 + metrics.getAscent(); } return -1; }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected Rectangle getBox(Rectangle r) { if (tileWhenIndeterminate) { return SwingUtilities.calculateInnerArea(progressBar, r); } else { return super.getBox(r); } }
{@inheritDoc}
/** * {@inheritDoc} */
@Override protected void setAnimationIndex(int newValue) { if (paintOutsideClip) { if (getAnimationIndex() == newValue) { return; } super.setAnimationIndex(newValue); progressBar.repaint(); } else { super.setAnimationIndex(newValue); } }
Notifies this UI delegate to repaint the specified component. This method paints the component background, then calls the paint(SynthContext, Graphics) method.

In general, this method does not need to be overridden by subclasses. All Look and Feel rendering code should reside in the paint method.

Params:
  • g – the Graphics object used for painting
  • c – the component being painted
See Also:
/** * Notifies this UI delegate to repaint the specified component. * This method paints the component background, then calls * the {@link #paint(SynthContext,Graphics)} method. * * <p>In general, this method does not need to be overridden by subclasses. * All Look and Feel rendering code should reside in the {@code paint} method. * * @param g the {@code Graphics} object used for painting * @param c the component being painted * @see #paint(SynthContext,Graphics) */
@Override public void update(Graphics g, JComponent c) { SynthContext context = getContext(c); SynthLookAndFeel.update(context, g); context.getPainter().paintProgressBarBackground(context, g, 0, 0, c.getWidth(), c.getHeight(), progressBar.getOrientation()); paint(context, g); }
Paints the specified component according to the Look and Feel.

This method is not used by Synth Look and Feel. Painting is handled by the paint(SynthContext, Graphics) method.

Params:
  • g – the Graphics object used for painting
  • c – the component being painted
See Also:
/** * Paints the specified component according to the Look and Feel. * <p>This method is not used by Synth Look and Feel. * Painting is handled by the {@link #paint(SynthContext,Graphics)} method. * * @param g the {@code Graphics} object used for painting * @param c the component being painted * @see #paint(SynthContext,Graphics) */
@Override public void paint(Graphics g, JComponent c) { SynthContext context = getContext(c); paint(context, g); }
Paints the specified component.
Params:
  • context – context for the component being painted
  • g – the Graphics object used for painting
See Also:
/** * Paints the specified component. * * @param context context for the component being painted * @param g the {@code Graphics} object used for painting * @see #update(Graphics,JComponent) */
protected void paint(SynthContext context, Graphics g) { JProgressBar pBar = (JProgressBar)context.getComponent(); int x = 0, y = 0, width = 0, height = 0; if (!pBar.isIndeterminate()) { Insets pBarInsets = pBar.getInsets(); double percentComplete = pBar.getPercentComplete(); if (percentComplete != 0.0) { if (pBar.getOrientation() == JProgressBar.HORIZONTAL) { x = pBarInsets.left + progressPadding; y = pBarInsets.top + progressPadding; width = (int)(percentComplete * (pBar.getWidth() - (pBarInsets.left + progressPadding + pBarInsets.right + progressPadding))); height = pBar.getHeight() - (pBarInsets.top + progressPadding + pBarInsets.bottom + progressPadding); if (!SynthLookAndFeel.isLeftToRight(pBar)) { x = pBar.getWidth() - pBarInsets.right - width - progressPadding - glowWidth; } } else { // JProgressBar.VERTICAL x = pBarInsets.left + progressPadding; width = pBar.getWidth() - (pBarInsets.left + progressPadding + pBarInsets.right + progressPadding); height = (int)(percentComplete * (pBar.getHeight() - (pBarInsets.top + progressPadding + pBarInsets.bottom + progressPadding))); y = pBar.getHeight() - pBarInsets.bottom - height - progressPadding; if (SynthLookAndFeel.isLeftToRight(pBar)) { y -= glowWidth; } } } } else { boxRect = getBox(boxRect); x = boxRect.x + progressPadding; y = boxRect.y + progressPadding; width = boxRect.width - progressPadding - progressPadding; height = boxRect.height - progressPadding - progressPadding; } //if tiling and indeterminate, then paint the progress bar foreground a //bit wider than it should be. Shift as needed to ensure that there is //an animated effect if (tileWhenIndeterminate && pBar.isIndeterminate()) { double percentComplete = (double)getAnimationIndex() / (double)getFrameCount(); int offset = (int)(percentComplete * tileWidth); Shape clip = g.getClip(); g.clipRect(x, y, width, height); if (pBar.getOrientation() == JProgressBar.HORIZONTAL) { //paint each tile horizontally for (int i=x-tileWidth+offset; i<=width; i+=tileWidth) { context.getPainter().paintProgressBarForeground( context, g, i, y, tileWidth, height, pBar.getOrientation()); } } else { //JProgressBar.VERTICAL //paint each tile vertically for (int i=y-offset; i<height+tileWidth; i+=tileWidth) { context.getPainter().paintProgressBarForeground( context, g, x, i, width, tileWidth, pBar.getOrientation()); } } g.setClip(clip); } else { if (minBarSize == null || (width >= minBarSize.width && height >= minBarSize.height)) { context.getPainter().paintProgressBarForeground(context, g, x, y, width, height, pBar.getOrientation()); } } if (pBar.isStringPainted()) { paintText(context, g, pBar.getString()); } }
Paints the component's text.
Params:
  • context – context for the component being painted
  • g – Graphics object used for painting
  • title – the text to paint
/** * Paints the component's text. * * @param context context for the component being painted * @param g {@code Graphics} object used for painting * @param title the text to paint */
protected void paintText(SynthContext context, Graphics g, String title) { if (progressBar.isStringPainted()) { SynthStyle style = context.getStyle(); Font font = style.getFont(context); FontMetrics fm = SwingUtilities2.getFontMetrics( progressBar, g, font); int strLength = style.getGraphicsUtils(context). computeStringWidth(context, font, fm, title); Rectangle bounds = progressBar.getBounds(); if (rotateText && progressBar.getOrientation() == JProgressBar.VERTICAL){ Graphics2D g2 = (Graphics2D)g; // Calculate the position for the text. Point textPos; AffineTransform rotation; if (progressBar.getComponentOrientation().isLeftToRight()){ rotation = AffineTransform.getRotateInstance(-Math.PI/2); textPos = new Point( (bounds.width+fm.getAscent()-fm.getDescent())/2, (bounds.height+strLength)/2); } else { rotation = AffineTransform.getRotateInstance(Math.PI/2); textPos = new Point( (bounds.width-fm.getAscent()+fm.getDescent())/2, (bounds.height-strLength)/2); } // Progress bar isn't wide enough for the font. Don't paint it. if (textPos.x < 0) { return; } // Paint the text. font = font.deriveFont(rotation); g2.setFont(font); g2.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND)); style.getGraphicsUtils(context).paintText(context, g, title, textPos.x, textPos.y, -1); } else { // Calculate the bounds for the text. Rectangle textRect = new Rectangle( (bounds.width / 2) - (strLength / 2), (bounds.height - (fm.getAscent() + fm.getDescent())) / 2, 0, 0); // Progress bar isn't tall enough for the font. Don't paint it. if (textRect.y < 0) { return; } // Paint the text. g.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND)); g.setFont(font); style.getGraphicsUtils(context).paintText(context, g, title, textRect.x, textRect.y, -1); } } }
{@inheritDoc}
/** * {@inheritDoc} */
@Override public void paintBorder(SynthContext context, Graphics g, int x, int y, int w, int h) { context.getPainter().paintProgressBarBorder(context, g, x, y, w, h, progressBar.getOrientation()); }
{@inheritDoc}
/** * {@inheritDoc} */
@Override public void propertyChange(PropertyChangeEvent e) { if (SynthLookAndFeel.shouldUpdateStyle(e) || "indeterminate".equals(e.getPropertyName())) { updateStyle((JProgressBar)e.getSource()); } }
{@inheritDoc}
/** * {@inheritDoc} */
@Override public Dimension getPreferredSize(JComponent c) { Dimension size = null; Insets border = progressBar.getInsets(); FontMetrics fontSizer = progressBar.getFontMetrics(progressBar.getFont()); String progString = progressBar.getString(); int stringHeight = fontSizer.getHeight() + fontSizer.getDescent(); if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) { size = new Dimension(getPreferredInnerHorizontal()); if (progressBar.isStringPainted()) { // adjust the height if necessary to make room for the string if (stringHeight > size.height) { size.height = stringHeight; } // adjust the width if necessary to make room for the string int stringWidth = SwingUtilities2.stringWidth( progressBar, fontSizer, progString); if (stringWidth > size.width) { size.width = stringWidth; } } } else { size = new Dimension(getPreferredInnerVertical()); if (progressBar.isStringPainted()) { // make sure the width is big enough for the string if (stringHeight > size.width) { size.width = stringHeight; } // make sure the height is big enough for the string int stringWidth = SwingUtilities2.stringWidth( progressBar, fontSizer, progString); if (stringWidth > size.height) { size.height = stringWidth; } } } // handle scaling for sizeVarients for special case components. The // key "JComponent.sizeVariant" scales for large/small/mini // components are based on Apples LAF String scaleKey = (String)progressBar.getClientProperty( "JComponent.sizeVariant"); if (scaleKey != null){ if ("large".equals(scaleKey)){ size.width *= 1.15f; size.height *= 1.15f; } else if ("small".equals(scaleKey)){ size.width *= 0.90f; size.height *= 0.90f; } else if ("mini".equals(scaleKey)){ size.width *= 0.784f; size.height *= 0.784f; } } size.width += border.left + border.right; size.height += border.top + border.bottom; return size; } }