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Diffstat (limited to 'libjava/javax/swing/plaf/basic/BasicProgressBarUI.java')
| -rw-r--r-- | libjava/javax/swing/plaf/basic/BasicProgressBarUI.java | 820 |
1 files changed, 0 insertions, 820 deletions
diff --git a/libjava/javax/swing/plaf/basic/BasicProgressBarUI.java b/libjava/javax/swing/plaf/basic/BasicProgressBarUI.java deleted file mode 100644 index bf5cd0a7aa9..00000000000 --- a/libjava/javax/swing/plaf/basic/BasicProgressBarUI.java +++ /dev/null @@ -1,820 +0,0 @@ -/* BasicProgressBarUI.java - Copyright (C) 2004 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA -02111-1307 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - -package javax.swing.plaf.basic; - -import java.awt.Color; -import java.awt.Dimension; -import java.awt.Font; -import java.awt.FontMetrics; -import java.awt.Graphics; -import java.awt.Insets; -import java.awt.Point; -import java.awt.Rectangle; -import java.awt.event.ActionEvent; -import java.awt.event.ActionListener; -import java.beans.PropertyChangeEvent; -import java.beans.PropertyChangeListener; -import javax.swing.JComponent; -import javax.swing.JProgressBar; -import javax.swing.SwingConstants; -import javax.swing.SwingUtilities; -import javax.swing.Timer; -import javax.swing.UIDefaults; -import javax.swing.UIManager; -import javax.swing.event.ChangeEvent; -import javax.swing.event.ChangeListener; -import javax.swing.plaf.ComponentUI; -import javax.swing.plaf.ProgressBarUI; - - -/** - * The Basic Look and Feel UI delegate for the - * JProgressBar. - */ -public class BasicProgressBarUI extends ProgressBarUI -{ - /** - * A helper class that listens for ChangeEvents - * from the progressBar's model. - */ - protected class ChangeHandler implements ChangeListener - { - /** - * Called every time the state of the model changes. - * - * @param e The ChangeEvent given by the model. - */ - public void stateChanged(ChangeEvent e) - { - // Nothing to do but repaint. - progressBar.repaint(); - } - } - - /** - * This helper class is used to listen for - * PropertyChangeEvents from the progressBar. - */ - private class PropertyChangeHandler implements PropertyChangeListener - { - /** - * Called every time the properties of the - * progressBar change. - * - * @param e The PropertyChangeEvent given by the progressBar. - */ - public void propertyChange(PropertyChangeEvent e) - { - // Only need to listen for indeterminate changes. - // All other things are done on a repaint. - if (e.getPropertyName().equals(JProgressBar.INDETERMINATE_CHANGED_PROPERTY)) - if (((Boolean) e.getNewValue()).booleanValue()) - startAnimationTimer(); - else - stopAnimationTimer(); - else - progressBar.repaint(); - } - } - - /** - * This helper class is used to listen for - * the animationTimer's intervals. On every interval, - * the bouncing box should move. - */ - private class Animator implements ActionListener - { - /** - * Called every time the animationTimer reaches - * its interval. - * - * @param e The ActionEvent given by the timer. - */ - public void actionPerformed(ActionEvent e) - { - // Incrementing the animation index will cause - // a repaint. - incrementAnimationIndex(); - } - } - - /** The timer used to move the bouncing box. */ - private transient Timer animationTimer = new Timer(); - - - // The total number of frames must be an even number. - // The total number of frames is calculated from - // the cycleTime and repaintInterval given by - // the basic L&F's defaults. - // - // +-----------------------------------------------+ - // | frame0 | frame1 | frame2 | frame 3 | frame 4 | - // | | frame7 | frame6 | frame 5 | | - // +-----------------------------------------------+ - - /** The current animation index. */ - private transient int animationIndex; - - /** The total number of frames.*/ - private transient int numFrames; - - /** The helper that moves the bouncing box. */ - private transient Animator animation; - - /** The helper that listens for property change events. */ - private transient PropertyChangeHandler propertyListener; - - /** The Listener for the model. */ - protected ChangeListener changeListener; - - /** The progressBar for this UI. */ - protected JProgressBar progressBar; - - /** The length of the cell. The cell is the painted part. */ - private transient int cellLength; - - /** The gap between cells. */ - private transient int cellSpacing; - - /** The color of the text when the bar is not over it.*/ - private transient Color selectionBackground; - - /** The color of the text when the bar is over it. */ - private transient Color selectionForeground; - - /** - * Creates a new BasicProgressBarUI object. - */ - public BasicProgressBarUI() - { - super(); - } - - /** - * Creates a new BasicProgressBarUI for the component. - * - * @param x The JComponent to create the UI for. - * - * @return A new BasicProgressBarUI. - */ - public static ComponentUI createUI(JComponent x) - { - return new BasicProgressBarUI(); - } - - /** - * This method returns the length of the bar (from the minimum) - * in pixels (or units that the Graphics object draws in) based - * on the progressBar's getPercentComplete() value. - * - * @param b The insets of the progressBar. - * @param width The width of the progressBar. - * @param height The height of the progressBar. - * - * @return The length of the bar that should be painted in pixels. - */ - protected int getAmountFull(Insets b, int width, int height) - { - double percentDone = progressBar.getPercentComplete(); - if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) - return (int) (percentDone * (width - b.left - b.right)); - else - return (int) (percentDone * (height - b.top - b.bottom)); - } - - /** - * The current animation index. - * - * @return The current animation index. - */ - protected int getAnimationIndex() - { - return animationIndex; - } - - /** - * This method returns the size and position of the bouncing box - * for the current animation index. It stores the values in the - * given rectangle and returns it. It returns null if no box should - * be drawn. - * - * @param r The bouncing box rectangle. - * - * @return The bouncing box rectangle. - */ - protected Rectangle getBox(Rectangle r) - { - if (!progressBar.isIndeterminate()) - return null; - //numFrames has to be an even number as defined by spec. - int iterations = numFrames / 2 + 1; - - double boxDependent; - double boxIndependent; - - if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) - { - Dimension dims = getPreferredInnerHorizontal(); - boxDependent = (double) dims.width / iterations; - boxIndependent = dims.height; - } - else - { - Dimension dims = getPreferredInnerVertical(); - boxDependent = (double) dims.height / iterations; - boxIndependent = dims.width; - } - - Rectangle vr = new Rectangle(); - SwingUtilities.calculateInnerArea(progressBar, vr); - - int index = getAnimationIndex(); - if (animationIndex > (numFrames + 1) / 2) - index = numFrames - getAnimationIndex(); - - if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) - { - r.x = vr.x + (int) (index * boxDependent); - r.y = vr.y; - r.width = (int) boxDependent; - r.height = (int) boxIndependent; - } - else - { - index++; - r.x = vr.x; - r.y = vr.height - (int) (index * boxDependent) + vr.y; - r.width = (int) boxIndependent; - r.height = (int) boxDependent; - } - - return r; - } - - /** - * This method returns the length of the cells. - * - * @return The cell length. - */ - protected int getCellLength() - { - return cellLength; - } - - /** - * This method returns the spacing between cells. - * - * @return The cell gap. - */ - protected int getCellSpacing() - { - return cellSpacing; - } - - /** - * This method returns the maximum size of the JComponent. - * If it returns null, it is up to the LayoutManager - * to give it a size. - * - * @param c The component to find a maximum size for. - * - * @return The maximum size. - */ - public Dimension getMaximumSize(JComponent c) - { - return getPreferredSize(c); - } - - /** - * This method returns the minimum size of the JComponent. - * If it returns null, it is up to the LayoutManager to - * give it a size. - * - * @param c The component to find a minimum size for. - * - * @return The minimum size. - */ - public Dimension getMinimumSize(JComponent c) - { - return getPreferredSize(c); - } - - /** - * This method returns the preferred size of the inner - * rectangle (the bounds without the insets) if the - * progressBar is horizontal. - * - * @return The preferred size of the progressBar minus - * insets if it's horizontal. - */ - protected Dimension getPreferredInnerHorizontal() - { - Rectangle vr = new Rectangle(); - - SwingUtilities.calculateInnerArea(progressBar, vr); - - return new Dimension(vr.width, vr.height); - } - - /** - * This method returns the preferred size of the inner - * rectangle (the bounds without insets) if the - * progressBar is vertical. - * - * @return The preferred size of the progressBar minus - * insets if it's vertical. - */ - protected Dimension getPreferredInnerVertical() - { - Rectangle vr = new Rectangle(); - - SwingUtilities.calculateInnerArea(progressBar, vr); - - return new Dimension(vr.width, vr.height); - } - - /** - * This method returns the preferred size of the - * given JComponent. If it returns null, then it - * is up to the LayoutManager to give it a size. - * - * @param c The component to find the preferred size for. - * - * @return The preferred size of the component. - */ - public Dimension getPreferredSize(JComponent c) - { - // The only thing we need to worry about is - // the text size. - Graphics g = progressBar.getGraphics(); - - Insets insets = c.getInsets(); - - FontMetrics fm = g.getFontMetrics(c.getFont()); - - int textW = fm.stringWidth(progressBar.getString()); - int textH = fm.getHeight(); - - g.dispose(); - - if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) - { - if (textH < 20) - textH = 20; - if (textW < 200) - textW = 200; - } - else - { - if (textH < 200) - textH = 200; - if (textW < 20) - textW = 20; - } - textW += insets.left + insets.right; - textH += insets.top + insets.bottom; - return new Dimension(textW, textH); - } - - /** - * This method returns the Color that the text is shown in when the bar is - * not over the text. - * - * @return The color of the text when the bar is not over it. - */ - protected Color getSelectionBackground() - { - return selectionBackground; - } - - /** - * This method returns the Color that the text is shown in when the bar is - * over the text. - * - * @return The color of the text when the bar is over it. - */ - protected Color getSelectionForeground() - { - return selectionForeground; - } - - /** - * This method returns the point (the top left of the bounding box) - * where the text should be painted. - * - * @param g The Graphics object to measure FontMetrics with. - * @param progressString The string to paint. - * @param x The x coordinate of the overall bounds box. - * @param y The y coordinate of the overall bounds box. - * @param width The width of the overall bounds box. - * @param height The height of the overall bounds box. - * - * @return The top left of the bounding box where text should be painted. - */ - protected Point getStringPlacement(Graphics g, String progressString, int x, - int y, int width, int height) - { - Rectangle tr = new Rectangle(); - Rectangle vr = new Rectangle(x, y, width, height); - Rectangle ir = new Rectangle(); - - Font f = g.getFont(); - FontMetrics fm = g.getFontMetrics(f); - - SwingUtilities.layoutCompoundLabel(progressBar, fm, progressString, null, - SwingConstants.CENTER, - SwingConstants.CENTER, - SwingConstants.CENTER, - SwingConstants.CENTER, vr, ir, tr, 0); - return new Point(tr.x, tr.y); - } - - /** - * This method increments the animation index. - */ - public void incrementAnimationIndex() - { - animationIndex++; - //numFrames is like string length, it should be named numFrames or something - if (animationIndex >= numFrames) - animationIndex = 0; - progressBar.repaint(); - } - - /** - * This method paints the progressBar. It delegates its responsibilities - * to paintDeterminate and paintIndeterminate. - * - * @param g The Graphics object to paint with. - * @param c The JComponent to paint. - */ - public void paint(Graphics g, JComponent c) - { - if (! progressBar.isIndeterminate()) - paintDeterminate(g, c); - else - paintIndeterminate(g, c); - - if (progressBar.isBorderPainted()) - progressBar.getBorder().paintBorder(progressBar, g, 0, 0, - progressBar.getWidth(), - progressBar.getHeight()); - } - - /** - * This method is called if the painting to be done is - * for a determinate progressBar. - * - * @param g The Graphics object to paint with. - * @param c The JComponent to paint. - */ - protected void paintDeterminate(Graphics g, JComponent c) - { - Color saved = g.getColor(); - int space = getCellSpacing(); - int len = getCellLength(); - int max = progressBar.getMaximum(); - int min = progressBar.getMinimum(); - int value = progressBar.getValue(); - - Rectangle vr = new Rectangle(); - SwingUtilities.calculateInnerArea(c, vr); - - Rectangle or = c.getBounds(); - - Insets insets = c.getInsets(); - - int amountFull = getAmountFull(insets, or.width, or.height); - - g.setColor(c.getBackground()); - g.fill3DRect(vr.x, vr.y, vr.width, vr.height, false); - - if (max != min && len != 0 && value > min) - { - int iterations = value / (space + len); - - if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) - { - double spaceInUnits = space * (double) vr.width / (max - min); - double lenInUnits = len * (double) vr.width / (max - min); - double currX = vr.x; - - g.setColor(c.getForeground()); - g.fill3DRect(vr.x, vr.y, amountFull, vr.height, true); - - g.setColor(c.getBackground()); - if (spaceInUnits != 0) - { - for (int i = 0; i < iterations; i++) - { - currX += lenInUnits; - g.fill3DRect((int) currX, vr.y, (int) spaceInUnits, - vr.height, true); - currX += spaceInUnits; - } - } - } - else - { - double currY = vr.y; - double spaceInUnits = space * (double) vr.height / (max - min); - double lenInUnits = len * (double) vr.height / (max - min); - - g.setColor(c.getForeground()); - g.fill3DRect(vr.x, vr.y + vr.height - amountFull, vr.width, - amountFull, true); - - g.setColor(c.getBackground()); - - if (spaceInUnits != 0) - { - for (int i = 0; i < iterations; i++) - { - currY -= lenInUnits + spaceInUnits; - g.fill3DRect(vr.x, (int) currY, vr.width, - (int) spaceInUnits, true); - } - } - } - } - - if (progressBar.isStringPainted()) - paintString(g, 0, 0, or.width, or.height, amountFull, insets); - g.setColor(saved); - } - - /** - * This method is called if the painting to be done is for - * an indeterminate progressBar. - * - * @param g The Graphics object to paint with. - * @param c The JComponent to paint. - */ - protected void paintIndeterminate(Graphics g, JComponent c) - { - //need to paint the box at it's current position. no text is painted since - //all we're doing is bouncing back and forth - Color saved = g.getColor(); - Insets insets = c.getInsets(); - - Rectangle or = c.getBounds(); - Rectangle vr = new Rectangle(); - SwingUtilities.calculateInnerArea(c, vr); - - g.setColor(c.getBackground()); - g.fill3DRect(vr.x, vr.y, vr.width, vr.height, false); - - Rectangle box = new Rectangle(); - getBox(box); - - g.setColor(c.getForeground()); - g.fill3DRect(box.x, box.y, box.width, box.height, true); - - if (progressBar.isStringPainted()) - paintString(g, 0, 0, or.width, or.height, - getAmountFull(insets, or.width, or.height), insets); - - g.setColor(saved); - } - - /** - * This method paints the string for the progressBar. - * - * @param g The Graphics object to paint with. - * @param x The x coordinate of the progressBar. - * @param y The y coordinate of the progressBar. - * @param width The width of the progressBar. - * @param height The height of the progressBar. - * @param amountFull The amount of the progressBar that has its bar filled. - * @param b The insets of the progressBar. - */ - protected void paintString(Graphics g, int x, int y, int width, int height, - int amountFull, Insets b) - { - // We want to place in the exact center of the bar. - Point placement = getStringPlacement(g, progressBar.getString(), - x + b.left, y + b.top, - width - b.left - b.right, - height - b.top - b.bottom); - Color saved = g.getColor(); - - // FIXME: The Color of the text should use selectionForeground and selectionBackground - // but that can't be done right now, so we'll use white in the mean time. - g.setColor(Color.WHITE); - - FontMetrics fm = g.getFontMetrics(progressBar.getFont()); - - g.drawString(progressBar.getString(), placement.x, - placement.y + fm.getAscent()); - - g.setColor(saved); - } - - /** - * This method sets the current animation index. If the index - * is greater than the number of frames, it resets to 0. - * - * @param newValue The new animation index. - */ - protected void setAnimationIndex(int newValue) - { - animationIndex = (newValue <= numFrames) ? newValue : 0; - progressBar.repaint(); - } - - /** - * This method sets the cell length. - * - * @param cellLen The cell length. - */ - protected void setCellLength(int cellLen) - { - cellLength = cellLen; - } - - /** - * This method sets the cell spacing. - * - * @param cellSpace The cell spacing. - */ - protected void setCellSpacing(int cellSpace) - { - cellSpacing = cellSpace; - } - - /** - * This method starts the animation timer. It is called - * when the propertyChangeListener detects that the progressBar - * has changed to indeterminate mode. - */ - protected void startAnimationTimer() - { - if (animationTimer != null) - animationTimer.start(); - } - - /** - * This method stops the animation timer. It is called when - * the propertyChangeListener detects that the progressBar - * has changed to determinate mode. - */ - protected void stopAnimationTimer() - { - if (animationTimer != null) - animationTimer.stop(); - setAnimationIndex(0); - } - - /** - * This method changes the settings for the progressBar to - * the defaults provided by the current Look and Feel. - */ - protected void installDefaults() - { - UIDefaults defaults = UIManager.getLookAndFeelDefaults(); - - progressBar.setFont(defaults.getFont("ProgressBar.font")); - progressBar.setForeground(defaults.getColor("ProgressBar.foreground")); - progressBar.setBackground(defaults.getColor("ProgressBar.background")); - progressBar.setBorder(defaults.getBorder("ProgressBar.border")); - - selectionForeground = defaults.getColor("ProgressBar.selectionForeground"); - selectionBackground = defaults.getColor("ProgressBar.selectionBackground"); - cellLength = defaults.getInt("ProgressBar.cellLength"); - cellSpacing = defaults.getInt("ProgressBar.cellSpacing"); - - int repaintInterval = defaults.getInt("ProgressBar.repaintInterval"); - int cycleTime = defaults.getInt("ProgressBar.cycleTime"); - - if (cycleTime % repaintInterval != 0 - && (cycleTime / repaintInterval) % 2 != 0) - { - int div = (cycleTime / repaintInterval) + 2; - div /= 2; - div *= 2; - cycleTime = div * repaintInterval; - } - setAnimationIndex(0); - numFrames = cycleTime / repaintInterval; - animationTimer.setDelay(repaintInterval); - } - - /** - * The method uninstalls any defaults that were - * set by the current Look and Feel. - */ - protected void uninstallDefaults() - { - progressBar.setFont(null); - progressBar.setForeground(null); - progressBar.setBackground(null); - - selectionForeground = null; - selectionBackground = null; - } - - /** - * This method registers listeners to all the - * components that this UI delegate needs to listen to. - */ - protected void installListeners() - { - changeListener = new ChangeHandler(); - propertyListener = new PropertyChangeHandler(); - animation = new Animator(); - - progressBar.addChangeListener(changeListener); - progressBar.addPropertyChangeListener(propertyListener); - animationTimer.addActionListener(animation); - } - - /** - * This method unregisters listeners to all the - * components that were listened to. - */ - protected void uninstallListeners() - { - progressBar.removeChangeListener(changeListener); - progressBar.removePropertyChangeListener(propertyListener); - animationTimer.removeActionListener(animation); - - changeListener = null; - propertyListener = null; - animation = null; - } - - /** - * This method installs the UI for the given JComponent. - * This includes setting up defaults and listeners as - * well as initializing any values or objects that - * the UI may need. - * - * @param c The JComponent that is having this UI installed. - */ - public void installUI(JComponent c) - { - super.installUI(c); - if (c instanceof JProgressBar) - { - progressBar = (JProgressBar) c; - - animationTimer = new Timer(); - animationTimer.setRepeats(true); - - installDefaults(); - installListeners(); - } - } - - /** - * This method removes the UI for the given JComponent. - * This includes removing any listeners or defaults - * that the installUI may have set up. - * - * @param c The JComponent that is having this UI uninstalled. - */ - public void uninstallUI(JComponent c) - { - super.uninstallUI(c); - uninstallListeners(); - uninstallDefaults(); - - animationTimer = null; - progressBar = null; - } -} |