/*
* @(#)SynthProgressBarUI.java 1.23 04/04/02
*
* Copyright 2004 Sun Microsystems, Inc. All rights reserved.
* SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*/
package javax.swing.plaf.synth;
import java.awt.*;
import java.awt.geom.AffineTransform;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicProgressBarUI;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeEvent;
import java.io.Serializable;
import sun.swing.plaf.synth.SynthUI;
import com.sun.java.swing.SwingUtilities2;
/**
* Synth's ProgressBarUI.
*
* @version 1.23, 04/02/04
* @author Joshua Outwater
*/
class SynthProgressBarUI extends BasicProgressBarUI implements SynthUI,
PropertyChangeListener {
private SynthStyle style;
private int progressPadding;
public static ComponentUI createUI(JComponent x) {
return new SynthProgressBarUI();
}
protected void installListeners() {
super.installListeners();
progressBar.addPropertyChangeListener(this);
}
protected void uninstallListeners() {
super.uninstallListeners();
progressBar.removePropertyChangeListener(this);
}
protected void installDefaults() {
updateStyle(progressBar);
}
private void updateStyle(JProgressBar c) {
SynthContext context = getContext(c, ENABLED);
SynthStyle oldStyle = style;
style = SynthLookAndFeel.updateStyle(context, this);
if (style != oldStyle) {
setCellLength(style.getInt(context, "ProgressBar.cellLength", 1));
setCellSpacing(style.getInt(context, "ProgressBar.cellSpacing", 0));
progressPadding = style.getInt(context,
"ProgressBar.progressPadding", 0);
}
context.dispose();
}
protected void uninstallDefaults() {
SynthContext context = getContext(progressBar, ENABLED);
style.uninstallDefaults(context);
context.dispose();
style = null;
}
public SynthContext getContext(JComponent c) {
return getContext(c, getComponentState(c));
}
private SynthContext getContext(JComponent c, int state) {
return SynthContext.getContext(SynthContext.class, c,
SynthLookAndFeel.getRegion(c), style, state);
}
private Region getRegion(JComponent c) {
return SynthLookAndFeel.getRegion(c);
}
private int getComponentState(JComponent c) {
return SynthLookAndFeel.getComponentState(c);
}
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());
paint(context, g);
context.dispose();
}
public void paint(Graphics g, JComponent c) {
SynthContext context = getContext(c);
paint(context, g);
context.dispose();
}
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;
}
} 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;
// When the progress bar is vertical we always paint
// from bottom to top, not matter what the component
// orientation is.
}
}
} else {
boxRect = getBox(boxRect);
x = boxRect.x + progressPadding;
y = boxRect.y + progressPadding;
width = boxRect.width - progressPadding - progressPadding;
height = boxRect.height - progressPadding - progressPadding;
}
context.getPainter().paintProgressBarForeground(context, g,
x, y, width, height, pBar.getOrientation());
if (pBar.isStringPainted() && !pBar.isIndeterminate()) {
paintText(context, g, pBar.getString());
}
}
protected void paintText(SynthContext context, Graphics g,
String title) {
Font font = context.getStyle().getFont(context);
FontMetrics metrics = SwingUtilities2.getFontMetrics(progressBar, g,
font);
if (progressBar.isStringPainted()) {
String pBarString = progressBar.getString();
Rectangle bounds = progressBar.getBounds();
int strLength = context.getStyle().getGraphicsUtils(context).
computeStringWidth(context, font, metrics, pBarString);
// Calculate the bounds for the text.
Rectangle textRect = new Rectangle(
(bounds.width / 2) - (strLength / 2),
(bounds.height -
(metrics.getAscent() + metrics.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.
SynthStyle style = context.getStyle();
g.setColor(style.getColor(context, ColorType.TEXT_FOREGROUND));
g.setFont(style.getFont(context));
style.getGraphicsUtils(context).paintText(context, g, title,
textRect.x, textRect.y, -1);
}
}
public void paintBorder(SynthContext context, Graphics g, int x,
int y, int w, int h) {
context.getPainter().paintProgressBarBorder(context, g, x, y, w, h);
}
public void propertyChange(PropertyChangeEvent e) {
if (SynthLookAndFeel.shouldUpdateStyle(e)) {
updateStyle((JProgressBar)e.getSource());
}
}
public Dimension getPreferredSize(JComponent c) {
Dimension size;
Insets border = progressBar.getInsets();
FontMetrics fontSizer = progressBar.getFontMetrics(
progressBar.getFont());
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
size = new Dimension(getPreferredInnerHorizontal());
} else {
size = new Dimension(getPreferredInnerVertical());
}
// Ensure that the progress string will fit.
if (progressBar.isStringPainted()) {
String progString = progressBar.getString();
int stringHeight = fontSizer.getHeight() +
fontSizer.getDescent();
if (stringHeight > size.height) {
size.height = stringHeight;
}
// This is also for completeness.
int stringWidth = SwingUtilities2.stringWidth(
progressBar, fontSizer, progString);
if (stringWidth > size.width) {
size.width = stringWidth;
}
}
size.width += border.left + border.right;
size.height += border.top + border.bottom;
return size;
}
}
|
