/*
* @(#)SynthSpinnerUI.java 1.14 06/04/10
*
* Copyright 2006 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.event.*;
import java.text.ParseException;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.plaf.*;
import javax.swing.plaf.basic.BasicSpinnerUI;
import javax.swing.text.*;
import java.beans.*;
import java.text.*;
import java.util.*;
import sun.swing.plaf.synth.SynthUI;
/**
* Synth's SpinnerUI.
*
* @version 1.14, 04/10/06
* @author Hans Muller
* @author Joshua Outwater
*/
class SynthSpinnerUI extends BasicSpinnerUI implements PropertyChangeListener,
SynthUI {
private SynthStyle style;
/**
* Returns a new instance of SynthSpinnerUI.
*
* @param c the JSpinner (not used)
* @see ComponentUI#createUI
* @return a new SynthSpinnerUI object
*/
public static ComponentUI createUI(JComponent c) {
return new SynthSpinnerUI();
}
protected void installListeners() {
super.installListeners();
spinner.addPropertyChangeListener(this);
}
/**
* Removes the <code>propertyChangeListener</code> added
* by installListeners.
* <p>
* This method is called by <code>uninstallUI</code>.
*
* @see #installListeners
*/
protected void uninstallListeners() {
super.uninstallListeners();
spinner.removePropertyChangeListener(this);
}
/**
* Initialize the <code>JSpinner</code> <code>border</code>,
* <code>foreground</code>, and <code>background</code>, properties
* based on the corresponding "Spinner.*" properties from defaults table.
* The <code>JSpinners</code> layout is set to the value returned by
* <code>createLayout</code>. This method is called by <code>installUI</code>.
*
* @see #uninstallDefaults
* @see #installUI
* @see #createLayout
* @see LookAndFeel#installBorder
* @see LookAndFeel#installColors
*/
protected void installDefaults() {
LayoutManager layout = spinner.getLayout();
if (layout == null || layout instanceof UIResource) {
spinner.setLayout(createLayout());
}
updateStyle(spinner);
}
private void updateStyle(JSpinner c) {
SynthContext context = getContext(c, ENABLED);
SynthStyle oldStyle = style;
style = SynthLookAndFeel.updateStyle(context, this);
if (style != oldStyle) {
if (oldStyle != null) {
// Only call installKeyboardActions as uninstall is not
// public.
installKeyboardActions();
}
}
context.dispose();
}
/**
* Sets the <code>JSpinner's</code> layout manager to null. This
* method is called by <code>uninstallUI</code>.
*
* @see #installDefaults
* @see #uninstallUI
*/
protected void uninstallDefaults() {
if (spinner.getLayout() instanceof UIResource) {
spinner.setLayout(null);
}
SynthContext context = getContext(spinner, ENABLED);
style.uninstallDefaults(context);
context.dispose();
style = null;
}
protected LayoutManager createLayout() {
return new SpinnerLayout();
}
/**
* Create a component that will replace the spinner models value
* with the object returned by <code>spinner.getPreviousValue</code>.
* By default the <code>previousButton</code> is a JButton
* who's <code>ActionListener</code> updates it's <code>JSpinner</code>
* ancestors model. If a previousButton isn't needed (in a subclass)
* then override this method to return null.
*
* @return a component that will replace the spinners model with the
* next value in the sequence, or null
* @see #installUI
* @see #createNextButton
*/
protected Component createPreviousButton() {
JButton b = new SynthArrowButton(SwingConstants.SOUTH);
b.setName("Spinner.previousButton");
installPreviousButtonListeners(b);
return b;
}
/**
* Create a component that will replace the spinner models value
* with the object returned by <code>spinner.getNextValue</code>.
* By default the <code>nextButton</code> is a JButton
* who's <code>ActionListener</code> updates it's <code>JSpinner</code>
* ancestors model. If a nextButton isn't needed (in a subclass)
* then override this method to return null.
*
* @return a component that will replace the spinners model with the
* next value in the sequence, or null
* @see #installUI
* @see #createPreviousButton
*/
protected Component createNextButton() {
JButton b = new SynthArrowButton(SwingConstants.NORTH);
b.setName("Spinner.nextButton");
installNextButtonListeners(b);
return b;
}
/**
* This method is called by installUI to get the editor component
* of the <code>JSpinner</code>. By default it just returns
* <code>JSpinner.getEditor()</code>. Subclasses can override
* <code>createEditor</code> to return a component that contains
* the spinner's editor or null, if they're going to handle adding
* the editor to the <code>JSpinner</code> in an
* <code>installUI</code> override.
* <p>
* Typically this method would be overridden to wrap the editor
* with a container with a custom border, since one can't assume
* that the editors border can be set directly.
* <p>
* The <code>replaceEditor</code> method is called when the spinners
* editor is changed with <code>JSpinner.setEditor</code>. If you've
* overriden this method, then you'll probably want to override
* <code>replaceEditor</code> as well.
*
* @return the JSpinners editor JComponent, spinner.getEditor() by default
* @see #installUI
* @see #replaceEditor
* @see JSpinner#getEditor
*/
protected JComponent createEditor() {
JComponent editor = spinner.getEditor();
editor.setName("Spinner.editor");
updateEditorAlignment(editor);
return editor;
}
/**
* Called by the <code>PropertyChangeListener</code> when the
* <code>JSpinner</code> editor property changes. It's the responsibility
* of this method to remove the old editor and add the new one. By
* default this operation is just:
* <pre>
* spinner.remove(oldEditor);
* spinner.add(newEditor, "Editor");
* </pre>
* The implementation of <code>replaceEditor</code> should be coordinated
* with the <code>createEditor</code> method.
*
* @see #createEditor
* @see #createPropertyChangeListener
*/
protected void replaceEditor(JComponent oldEditor, JComponent newEditor) {
spinner.remove(oldEditor);
updateEditorAlignment(newEditor);
spinner.add(newEditor, "Editor");
}
private void updateEditorAlignment(JComponent editor) {
if (editor instanceof JSpinner.DefaultEditor) {
SynthContext context = getContext(spinner);
Integer alignment = (Integer)context.getStyle().get(
context, "Spinner.editorAlignment");
if (alignment != null) {
JTextField text = ((JSpinner.DefaultEditor)editor).getTextField();
text.setHorizontalAlignment(alignment);
}
}
}
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().paintSpinnerBackground(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) {
}
public void paintBorder(SynthContext context, Graphics g, int x,
int y, int w, int h) {
context.getPainter().paintSpinnerBorder(context, g, x, y, w, h);
}
/**
* A simple layout manager for the editor and the next/previous buttons.
* See the SynthSpinnerUI javadoc for more information about exactly
* how the components are arranged.
*/
private static class SpinnerLayout implements LayoutManager, UIResource
{
private Component nextButton = null;
private Component previousButton = null;
private Component editor = null;
public void addLayoutComponent(String name, Component c) {
if ("Next".equals(name)) {
nextButton = c;
}
else if ("Previous".equals(name)) {
previousButton = c;
}
else if ("Editor".equals(name)) {
editor = c;
}
}
public void removeLayoutComponent(Component c) {
if (c == nextButton) {
c = null;
}
else if (c == previousButton) {
previousButton = null;
}
else if (c == editor) {
editor = null;
}
}
private Dimension preferredSize(Component c) {
return (c == null) ? new Dimension(0, 0) : c.getPreferredSize();
}
public Dimension preferredLayoutSize(Container parent) {
Dimension nextD = preferredSize(nextButton);
Dimension previousD = preferredSize(previousButton);
Dimension editorD = preferredSize(editor);
/* Force the editors height to be a multiple of 2
*/
editorD.height = ((editorD.height + 1) / 2) * 2;
Dimension size = new Dimension(editorD.width, editorD.height);
size.width += Math.max(nextD.width, previousD.width);
Insets insets = parent.getInsets();
size.width += insets.left + insets.right;
size.height += insets.top + insets.bottom;
return size;
}
public Dimension minimumLayoutSize(Container parent) {
return preferredLayoutSize(parent);
}
private void setBounds(Component c, int x, int y, int width, int height) {
if (c != null) {
c.setBounds(x, y, width, height);
}
}
public void layoutContainer(Container parent) {
Insets insets = parent.getInsets();
int availWidth = parent.getWidth() - (insets.left + insets.right);
int availHeight = parent.getHeight() - (insets.top + insets.bottom);
Dimension nextD = preferredSize(nextButton);
Dimension previousD = preferredSize(previousButton);
int nextHeight = availHeight / 2;
int previousHeight = availHeight - nextHeight;
int buttonsWidth = Math.max(nextD.width, previousD.width);
int editorWidth = availWidth - buttonsWidth;
/* Deal with the spinners componentOrientation property.
*/
int editorX, buttonsX;
if (parent.getComponentOrientation().isLeftToRight()) {
editorX = insets.left;
buttonsX = editorX + editorWidth;
}
else {
buttonsX = insets.left;
editorX = buttonsX + buttonsWidth;
}
int previousY = insets.top + nextHeight;
setBounds(editor, editorX, insets.top, editorWidth, availHeight);
setBounds(nextButton, buttonsX, insets.top, buttonsWidth, nextHeight);
setBounds(previousButton, buttonsX, previousY, buttonsWidth, previousHeight);
}
}
public void propertyChange(PropertyChangeEvent e) {
String propertyName = e.getPropertyName();
JSpinner spinner = (JSpinner)(e.getSource());
SpinnerUI spinnerUI = spinner.getUI();
if (spinnerUI instanceof SynthSpinnerUI) {
SynthSpinnerUI ui = (SynthSpinnerUI)spinnerUI;
if (SynthLookAndFeel.shouldUpdateStyle(e)) {
ui.updateStyle(spinner);
}
}
}
}
|
