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/*
* $Id$
*
* Copyright 2004 Sun Microsystems, Inc., 4150 Network Circle,
* Santa Clara, California 95054, U.S.A. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.jdesktop.swingx;
import java.awt.Component;
import java.awt.HeadlessException;
import java.util.prefs.Preferences;
import javax.swing.JDialog;
import org.jdesktop.beans.JavaBean;
import org.jdesktop.swingx.plaf.LookAndFeelAddons;
import org.jdesktop.swingx.plaf.TipOfTheDayAddon;
import org.jdesktop.swingx.plaf.TipOfTheDayUI;
import org.jdesktop.swingx.tips.DefaultTipOfTheDayModel;
import org.jdesktop.swingx.tips.TipOfTheDayModel;
import org.jdesktop.swingx.tips.TipOfTheDayModel.Tip;
/**
* Provides the "Tip of The Day" pane and dialog.
*
*
* Tips are retrieved from the {@link org.jdesktop.swingx.tips.TipOfTheDayModel}.
* In the most common usage, a tip (as returned by
* {@link org.jdesktop.swingx.tips.TipOfTheDayModel.Tip#getTip()}) is just a
* String. However, the return type of this method is actually
* Object. Its interpretation depends on its type:
*
* - Component
*
- The
Component is displayed in the dialog.
* - Icon
*
- The
Icon is wrapped in a JLabel and
* displayed in the dialog.
* - others
*
- The object is converted to a
String by calling its
* toString method. The result is wrapped in a
* JEditorPane or JTextArea and displayed.
*
*
*
* JXTipOfTheDay finds its tips in its {@link org.jdesktop.swingx.tips.TipOfTheDayModel}.
* Such model can be programmatically built using {@link org.jdesktop.swingx.tips.DefaultTipOfTheDayModel}
* and {@link org.jdesktop.swingx.tips.DefaultTip} but
* the {@link org.jdesktop.swingx.tips.TipLoader} provides a convenient method to
* build a model and its tips from a {@link java.util.Properties} object.
*
*
* Example:
*
* Let's consider a file tips.properties with the following content:
*
*
* tip.1.description=This is the first time! Plain text.
* tip.2.description=<html>This is <b>another tip</b>, it uses HTML!
* tip.3.description=A third one
*
*
*
* To load and display the tips:
*
*
*
* Properties tips = new Properties();
* tips.load(new FileInputStream("tips.properties"));
*
* TipOfTheDayModel model = TipLoader.load(tips);
* JXTipOfTheDay totd = new JXTipOfTheDay(model);
*
* totd.showDialog(someParentComponent);
*
*
*
*
* Additionally, JXTipOfTheDay features an option enabling the end-user
* to choose to not display the "Tip Of The Day" dialog. This user choice can be stored
* in the user {@link java.util.prefs.Preferences} but JXTipOfTheDay also
* supports custom storage through the {@link org.jdesktop.swingx.JXTipOfTheDay.ShowOnStartupChoice} interface.
*
*
*
* Preferences userPreferences = Preferences.userRoot().node("myApp");
* totd.showDialog(someParentComponent, userPreferences);
*
*
* In this code, the first time showDialog is called, the dialog will be made
* visible and the user will have the choice to not display it again in the future
* (usually this is controlled by a checkbox "Show tips on startup"). If the user
* unchecks the option, subsequent calls to showDialog will not display the dialog.
* As the choice is saved in the user Preferences, it will persist when the application is relaunched.
*
* @see org.jdesktop.swingx.tips.TipLoader
* @see org.jdesktop.swingx.tips.TipOfTheDayModel
* @see org.jdesktop.swingx.tips.TipOfTheDayModel.Tip
* @see #showDialog(Component, Preferences)
* @see #showDialog(Component, ShowOnStartupChoice)
*
* @author Frederic Lavigne
*/
@JavaBean
public class JXTipOfTheDay extends JXPanel {
/**
* JXTipOfTheDay pluggable UI key swingx/TipOfTheDayUI
*/
public final static String uiClassID = "swingx/TipOfTheDayUI";
// ensure at least the default ui is registered
static {
LookAndFeelAddons.contribute(new TipOfTheDayAddon());
}
/**
* Key used to store the status of the "Show tip on startup" checkbox"
*/
public static final String PREFERENCE_KEY = "ShowTipOnStartup";
/**
* Used when generating PropertyChangeEvents for the "currentTip" property
*/
public static final String CURRENT_TIP_CHANGED_KEY = "currentTip";
private TipOfTheDayModel model;
private int currentTip = 0;
/**
* Constructs a new JXTipOfTheDay with an empty
* TipOfTheDayModel
*/
public JXTipOfTheDay() {
this(new DefaultTipOfTheDayModel(new Tip[0]));
}
/**
* Constructs a new JXTipOfTheDay showing tips from the given
* TipOfTheDayModel.
*
* @param model
*/
public JXTipOfTheDay(TipOfTheDayModel model) {
this.model = model;
updateUI();
}
/**
* Notification from the UIManager that the L&F has changed.
* Replaces the current UI object with the latest version from the
* UIManager.
*
* @see javax.swing.JComponent#updateUI
*/
@Override
public void updateUI() {
setUI((TipOfTheDayUI)LookAndFeelAddons.getUI(this, TipOfTheDayUI.class));
}
/**
* Sets the L&F object that renders this component.
*
* @param ui
* the TipOfTheDayUI L&F object
* @see javax.swing.UIDefaults#getUI
*
* @beaninfo bound: true hidden: true description: The UI object that
* implements the taskpane group's LookAndFeel.
*/
public void setUI(TipOfTheDayUI ui) {
super.setUI(ui);
}
/**
* Gets the UI object which implements the L&F for this component.
*
* @return the TipOfTheDayUI object that implements the TipOfTheDayUI L&F
*/
@Override
public TipOfTheDayUI getUI() {
return (TipOfTheDayUI)ui;
}
/**
* Returns the name of the L&F class that renders this component.
*
* @return the string {@link #uiClassID}
* @see javax.swing.JComponent#getUIClassID
* @see javax.swing.UIDefaults#getUI
*/
@Override
public String getUIClassID() {
return uiClassID;
}
public TipOfTheDayModel getModel() {
return model;
}
public void setModel(TipOfTheDayModel model) {
if (model == null) {
throw new IllegalArgumentException("model can not be null");
}
TipOfTheDayModel old = this.model;
this.model = model;
firePropertyChange("model", old, model);
}
public int getCurrentTip() {
return currentTip;
}
/**
* Sets the index of the tip to show
*
* @param currentTip
* @throws IllegalArgumentException if currentTip is not within the bounds [0,
* getModel().getTipCount()[.
*/
public void setCurrentTip(int currentTip) {
if (currentTip < 0 || currentTip >= getModel().getTipCount()) {
throw new IllegalArgumentException(
"Current tip must be within the bounds [0, " + getModel().getTipCount()
+ "]");
}
int oldTip = this.currentTip;
this.currentTip = currentTip;
firePropertyChange(CURRENT_TIP_CHANGED_KEY, oldTip, currentTip);
}
/**
* Shows the next tip in the list. It cycles the tip list.
*/
public void nextTip() {
int count = getModel().getTipCount();
if (count == 0) { return; }
int nextTip = currentTip + 1;
if (nextTip >= count) {
nextTip = 0;
}
setCurrentTip(nextTip);
}
/**
* Shows the previous tip in the list. It cycles the tip list.
*/
public void previousTip() {
int count = getModel().getTipCount();
if (count == 0) { return; }
int previousTip = currentTip - 1;
if (previousTip < 0) {
previousTip = count - 1;
}
setCurrentTip(previousTip);
}
/**
* Pops up a "Tip of the day" dialog.
*
* @param parentComponent
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
*/
public void showDialog(Component parentComponent) throws HeadlessException {
showDialog(parentComponent, (ShowOnStartupChoice)null);
}
/**
* Pops up a "Tip of the day" dialog. Additionally, it saves the state of the
* "Show tips on startup" checkbox in a key named "ShowTipOnStartup" in the
* given Preferences.
*
* @param parentComponent
* @param showOnStartupPref
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless() returns true.
* @throws IllegalArgumentException
* if showOnStartupPref is null
* @see java.awt.GraphicsEnvironment#isHeadless
* @return true if the user chooses to see the tips again, false otherwise.
*/
public boolean showDialog(Component parentComponent,
Preferences showOnStartupPref) throws HeadlessException {
return showDialog(parentComponent, showOnStartupPref, false);
}
/**
* Pops up a "Tip of the day" dialog. Additionally, it saves the state of the
* "Show tips on startup" checkbox in a key named "ShowTipOnStartup" in the
* given Preferences.
*
* @param parentComponent
* @param showOnStartupPref
* @param force
* if true, the dialog is displayed even if the Preferences is set to
* hide the dialog
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless() returns true.
* @throws IllegalArgumentException
* if showOnStartupPref is null
* @see java.awt.GraphicsEnvironment#isHeadless
* @return true if the user chooses to see the tips again, false
* otherwise.
*/
public boolean showDialog(Component parentComponent,
final Preferences showOnStartupPref, boolean force) throws HeadlessException {
if (showOnStartupPref == null) { throw new IllegalArgumentException(
"Preferences can not be null"); }
ShowOnStartupChoice store = new ShowOnStartupChoice() {
@Override
public boolean isShowingOnStartup() {
return showOnStartupPref.getBoolean(PREFERENCE_KEY, true);
}
@Override
public void setShowingOnStartup(boolean showOnStartup) {
if (showOnStartup && !showOnStartupPref.getBoolean(PREFERENCE_KEY, true)) {
// if the choice was previously not enable and now we re-enable it, we
// must remove the key
showOnStartupPref.remove(PREFERENCE_KEY);
} else if (!showOnStartup) {
// user does not want to see the tip
showOnStartupPref.putBoolean(PREFERENCE_KEY, showOnStartup);
}
}
};
return showDialog(parentComponent, store, force);
}
/**
* Pops up a "Tip of the day" dialog.
*
* If choice is not null, the method first checks if
* {@link ShowOnStartupChoice#isShowingOnStartup()} is true before showing the
* dialog.
*
* Additionally, it saves the state of the "Show tips on startup" checkbox
* using the given {@link ShowOnStartupChoice} object.
*
* @param parentComponent
* @param choice
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @return true if the user chooses to see the tips again, false otherwise.
*/
public boolean showDialog(Component parentComponent,
ShowOnStartupChoice choice) {
return showDialog(parentComponent, choice, false);
}
/**
* Pops up a "Tip of the day" dialog.
*
* If choice is not null, the method first checks if
* force is true or if
* {@link ShowOnStartupChoice#isShowingOnStartup()} is true before showing the
* dialog.
*
* Additionally, it saves the state of the "Show tips on startup" checkbox
* using the given {@link ShowOnStartupChoice} object.
*
* @param parentComponent
* @param choice
* @param force
* if true, the dialog is displayed even if
* {@link ShowOnStartupChoice#isShowingOnStartup()} is false
* @exception HeadlessException
* if GraphicsEnvironment.isHeadless() returns true.
* @see java.awt.GraphicsEnvironment#isHeadless
* @return true if the user chooses to see the tips again, false otherwise.
*/
public boolean showDialog(Component parentComponent,
ShowOnStartupChoice choice, boolean force) {
if (choice == null) {
JDialog dialog = createDialog(parentComponent, choice);
dialog.setVisible(true);
dialog.dispose();
return true;
} else if (force || choice.isShowingOnStartup()) {
JDialog dialog = createDialog(parentComponent, choice);
dialog.setVisible(true);
dialog.dispose();
return choice.isShowingOnStartup();
} else {
return false;
}
}
/**
* @param showOnStartupPref
* @return true if the key named "ShowTipOnStartup" is not set to false
*/
public static boolean isShowingOnStartup(Preferences showOnStartupPref) {
return showOnStartupPref.getBoolean(PREFERENCE_KEY, true);
}
/**
* Removes the value set for "ShowTipOnStartup" in the given Preferences to
* ensure the dialog shown by a later call to
* {@link #showDialog(Component, Preferences)} will be visible to the user.
*
* @param showOnStartupPref
*/
public static void forceShowOnStartup(Preferences showOnStartupPref) {
showOnStartupPref.remove(PREFERENCE_KEY);
}
/**
* Calls
* {@link TipOfTheDayUI#createDialog(Component, JXTipOfTheDay.ShowOnStartupChoice)}.
*
* This method can be overriden in order to control things such as the
* placement of the dialog or its title.
*
* @param parentComponent
* @param choice
* @return a JDialog to show this TipOfTheDay pane
*/
protected JDialog createDialog(Component parentComponent,
ShowOnStartupChoice choice) {
return getUI().createDialog(parentComponent, choice);
}
/**
* Used in conjunction with the
* {@link JXTipOfTheDay#showDialog(Component, ShowOnStartupChoice)} to save the
* "Show tips on startup" choice.
*/
public static interface ShowOnStartupChoice {
/**
* Persists the user choice
* @param showOnStartup the user choice
*/
void setShowingOnStartup(boolean showOnStartup);
/**
* @return the previously stored user choice
*/
boolean isShowingOnStartup();
}
}