Java/GWT/I18N
Fill I18N Message to MenuItem
<source lang="java">
package com.jexp.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rumand; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.MenuBar; import com.google.gwt.user.client.ui.RootPanel; public class GWTClient implements EntryPoint{
public void onModuleLoad() {
MenuBar menu = new MenuBar();
MenuBar menuCreate = new MenuBar(true);
MenuBar menuHelp = new MenuBar(true);
Constants constants = (Constants) GWT.create(Constants.class);
menuHelp.addItem(constants.AboutMenuItemName(), new DummyCommand());
menuCreate.addItem(constants.ClockMenuItemName(), new DummyCommand());
menuCreate.addItem(constants.CalculatorMenuItemName(), new DummyCommand());
menu.addItem(constants.HelpMenuName(), menuHelp);
menu.addItem(constants.CreateMenuName(), menuCreate);
menuCreate.addStyleName("submenu");
menuHelp.addStyleName("submenu");
RootPanel.get().add(menu);
}
}
public class DummyCommand implements Command{
public void execute() {
Window.alert("Menu Item Clicked");
}
}
package com.jexp.gwt.client; public interface Constants extends com.google.gwt.i18n.client.Constants {
/** * Translated "About". * * @return translated "About" * @gwt.key AboutMenuItemName */ String AboutMenuItemName(); /** * Translated "Create". * * @return translated "Create" * @gwt.key CreateMenuName */ String CreateMenuName(); /** * Translated "Help". * * @return translated "Help" * @gwt.key HelpMenuName */ String HelpMenuName(); /** * Translated "Calculator". * * @return translated "Calculator" * @gwt.key CalculatorMenuItemName */ String CalculatorMenuItemName(); /** * Translated "Clock". * * @return translated "Clock" * @gwt.key ClockMenuItemName */ String ClockMenuItemName();
} ////////////// HelpMenuName: Help CreateMenuName: Create AboutMenuItemName: About CalculatorMenuItemName: Calculator ClockMenuItemName: Clock
</source>
I18N Message
<source lang="java">
package com.jexp.gwt.client; import com.google.gwt.core.client.EntryPoint; import com.google.gwt.core.client.GWT; import com.google.gwt.user.client.rumand; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.Image; import com.google.gwt.user.client.ui.MenuBar; import com.google.gwt.user.client.ui.RootPanel;
public class GWTClient implements EntryPoint{
public void onModuleLoad() {
MenuBar menu = new MenuBar();
MenuBar menuCreate = new MenuBar(true);
MenuBar menuHelp = new MenuBar(true);
Constants constants = (Constants) GWT.create(Constants.class);
menuHelp.addItem(constants.AboutMenuItemName(), new DummyCommand());
menuCreate.addItem(constants.ClockMenuItemName(), new DummyCommand());
menuCreate.addItem(constants.CalculatorMenuItemName(), new DummyCommand());
menuCreate.addItem(constants.permissionDenied("Joe","your password is wrong"), new DummyCommand());
menu.addItem(constants.HelpMenuName(), menuHelp);
menu.addItem(constants.CreateMenuName(), menuCreate);
menuCreate.addStyleName("submenu");
menuHelp.addStyleName("submenu");
RootPanel.get().add(menu);
}
}
public class DummyCommand implements Command{
public void execute() {
Window.alert("Menu Item Clicked");
}
}
///// package com.jexp.gwt.client; public interface Constants extends com.google.gwt.i18n.client.Messages {
/** * Translated "About". * * @return translated "About" * @gwt.key AboutMenuItemName */ String AboutMenuItemName(); /** * Translated "Create". * * @return translated "Create" * @gwt.key CreateMenuName */ String CreateMenuName(); /** * Translated "Help". * * @return translated "Help" * @gwt.key HelpMenuName */ String HelpMenuName(); /** * Translated "Calculator". * * @return translated "Calculator" * @gwt.key CalculatorMenuItemName */ String CalculatorMenuItemName(); /** * Translated "Clock". * * @return translated "Clock" * @gwt.key ClockMenuItemName */ String ClockMenuItemName(); String permissionDenied(String name, String message);
} ////////////// HelpMenuName: Help CreateMenuName: Create AboutMenuItemName: About CalculatorMenuItemName: Calculator ClockMenuItemName: Clock permissionDenied = Hi {0}, {1}
</source>
Load String From Properties File
<source lang="java">
/*
* Copyright 2007 Google Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. */
//package com.google.gwt.sample.kitchensink.client; package com.jexp.gwt.client; import com.google.gwt.core.client.GWT; import com.google.gwt.i18n.client.Constants; import com.google.gwt.user.client.Window; import com.google.gwt.user.client.ui.AbstractImagePrototype; import com.google.gwt.user.client.ui.ChangeListener; import com.google.gwt.user.client.ui.ClickListener; import com.google.gwt.user.client.ui.ruposite; import com.google.gwt.user.client.ui.HorizontalPanel; import com.google.gwt.user.client.ui.ImageBundle; import com.google.gwt.user.client.ui.KeyboardListener; import com.google.gwt.user.client.ui.ListBox; import com.google.gwt.user.client.ui.PushButton; import com.google.gwt.user.client.ui.RichTextArea; import com.google.gwt.user.client.ui.ToggleButton; import com.google.gwt.user.client.ui.VerticalPanel; import com.google.gwt.user.client.ui.Widget; /**
* A sample toolbar for use with {@link RichTextArea}. It provides a simple UI
* for all rich text formatting, dynamically displayed only for the available
* functionality.
*/
public class RichTextToolbar extends Composite {
/**
* This {@link ImageBundle} is used for all the button icons. Using an image
* bundle allows all of these images to be packed into a single image, which
* saves a lot of HTTP requests, drastically improving startup time.
*/
public interface Images extends ImageBundle {
/**
* @gwt.resource bold.gif
*/
AbstractImagePrototype bold();
/**
* @gwt.resource createLink.gif
*/
AbstractImagePrototype createLink();
/**
* @gwt.resource hr.gif
*/
AbstractImagePrototype hr();
/**
* @gwt.resource indent.gif
*/
AbstractImagePrototype indent();
/**
* @gwt.resource insertImage.gif
*/
AbstractImagePrototype insertImage();
/**
* @gwt.resource italic.gif
*/
AbstractImagePrototype italic();
/**
* @gwt.resource justifyCenter.gif
*/
AbstractImagePrototype justifyCenter();
/**
* @gwt.resource justifyLeft.gif
*/
AbstractImagePrototype justifyLeft();
/**
* @gwt.resource justifyRight.gif
*/
AbstractImagePrototype justifyRight();
/**
* @gwt.resource ol.gif
*/
AbstractImagePrototype ol();
/**
* @gwt.resource outdent.gif
*/
AbstractImagePrototype outdent();
/**
* @gwt.resource removeFormat.gif
*/
AbstractImagePrototype removeFormat();
/**
* @gwt.resource removeLink.gif
*/
AbstractImagePrototype removeLink();
/**
* @gwt.resource strikeThrough.gif
*/
AbstractImagePrototype strikeThrough();
/**
* @gwt.resource subscript.gif
*/
AbstractImagePrototype subscript();
/**
* @gwt.resource superscript.gif
*/
AbstractImagePrototype superscript();
/**
* @gwt.resource ul.gif
*/
AbstractImagePrototype ul();
/**
* @gwt.resource underline.gif
*/
AbstractImagePrototype underline();
}
/**
* This {@link Constants} interface is used to make the toolbar"s strings
* internationalizable.
*/
public interface Strings extends Constants {
String black();
String blue();
String bold();
String color();
String createLink();
String font();
String green();
String hr();
String indent();
String insertImage();
String italic();
String justifyCenter();
String justifyLeft();
String justifyRight();
String large();
String medium();
String normal();
String ol();
String outdent();
String red();
String removeFormat();
String removeLink();
String size();
String small();
String strikeThrough();
String subscript();
String superscript();
String ul();
String underline();
String white();
String xlarge();
String xsmall();
String xxlarge();
String xxsmall();
String yellow();
}
/**
* We use an inner EventListener class to avoid exposing event methods on the
* RichTextToolbar itself.
*/
private class EventListener implements ClickListener, ChangeListener,
KeyboardListener {
public void onChange(Widget sender) {
if (sender == backColors) {
basic.setBackColor(backColors.getValue(backColors.getSelectedIndex()));
backColors.setSelectedIndex(0);
} else if (sender == foreColors) {
basic.setForeColor(foreColors.getValue(foreColors.getSelectedIndex()));
foreColors.setSelectedIndex(0);
} else if (sender == fonts) {
basic.setFontName(fonts.getValue(fonts.getSelectedIndex()));
fonts.setSelectedIndex(0);
} else if (sender == fontSizes) {
basic.setFontSize(fontSizesConstants[fontSizes.getSelectedIndex() - 1]);
fontSizes.setSelectedIndex(0);
}
}
public void onClick(Widget sender) {
if (sender == bold) {
basic.toggleBold();
} else if (sender == italic) {
basic.toggleItalic();
} else if (sender == underline) {
basic.toggleUnderline();
} else if (sender == subscript) {
basic.toggleSubscript();
} else if (sender == superscript) {
basic.toggleSuperscript();
} else if (sender == strikethrough) {
extended.toggleStrikethrough();
} else if (sender == indent) {
extended.rightIndent();
} else if (sender == outdent) {
extended.leftIndent();
} else if (sender == justifyLeft) {
basic.setJustification(RichTextArea.Justification.LEFT);
} else if (sender == justifyCenter) {
basic.setJustification(RichTextArea.Justification.CENTER);
} else if (sender == justifyRight) {
basic.setJustification(RichTextArea.Justification.RIGHT);
} else if (sender == insertImage) {
String url = Window.prompt("Enter an image URL:", "http://");
if (url != null) {
extended.insertImage(url);
}
} else if (sender == createLink) {
String url = Window.prompt("Enter a link URL:", "http://");
if (url != null) {
extended.createLink(url);
}
} else if (sender == removeLink) {
extended.removeLink();
} else if (sender == hr) {
extended.insertHorizontalRule();
} else if (sender == ol) {
extended.insertOrderedList();
} else if (sender == ul) {
extended.insertUnorderedList();
} else if (sender == removeFormat) {
extended.removeFormat();
} else if (sender == richText) {
// We use the RichTextArea"s onKeyUp event to update the toolbar status.
// This will catch any cases where the user moves the cursur using the
// keyboard, or uses one of the browser"s built-in keyboard shortcuts.
updateStatus();
}
}
public void onKeyDown(Widget sender, char keyCode, int modifiers) {
}
public void onKeyPress(Widget sender, char keyCode, int modifiers) {
}
public void onKeyUp(Widget sender, char keyCode, int modifiers) {
if (sender == richText) {
// We use the RichTextArea"s onKeyUp event to update the toolbar status.
// This will catch any cases where the user moves the cursur using the
// keyboard, or uses one of the browser"s built-in keyboard shortcuts.
updateStatus();
}
}
}
private static final RichTextArea.FontSize[] fontSizesConstants = new RichTextArea.FontSize[] {
RichTextArea.FontSize.XX_SMALL, RichTextArea.FontSize.X_SMALL,
RichTextArea.FontSize.SMALL, RichTextArea.FontSize.MEDIUM,
RichTextArea.FontSize.LARGE, RichTextArea.FontSize.X_LARGE,
RichTextArea.FontSize.XX_LARGE};
private Images images = (Images) GWT.create(Images.class);
private Strings strings = (Strings) GWT.create(Strings.class);
private EventListener listener = new EventListener();
private RichTextArea richText;
private RichTextArea.BasicFormatter basic;
private RichTextArea.ExtendedFormatter extended;
private VerticalPanel outer = new VerticalPanel();
private HorizontalPanel topPanel = new HorizontalPanel();
private HorizontalPanel bottomPanel = new HorizontalPanel();
private ToggleButton bold;
private ToggleButton italic;
private ToggleButton underline;
private ToggleButton subscript;
private ToggleButton superscript;
private ToggleButton strikethrough;
private PushButton indent;
private PushButton outdent;
private PushButton justifyLeft;
private PushButton justifyCenter;
private PushButton justifyRight;
private PushButton hr;
private PushButton ol;
private PushButton ul;
private PushButton insertImage;
private PushButton createLink;
private PushButton removeLink;
private PushButton removeFormat;
private ListBox backColors;
private ListBox foreColors;
private ListBox fonts;
private ListBox fontSizes;
/**
* Creates a new toolbar that drives the given rich text area.
*
* @param richText the rich text area to be controlled
*/
public RichTextToolbar(RichTextArea richText) {
this.richText = richText;
this.basic = richText.getBasicFormatter();
this.extended = richText.getExtendedFormatter();
outer.add(topPanel);
outer.add(bottomPanel);
topPanel.setWidth("100%");
bottomPanel.setWidth("100%");
initWidget(outer);
setStyleName("gwt-RichTextToolbar");
if (basic != null) {
topPanel.add(bold = createToggleButton(images.bold(), strings.bold()));
topPanel.add(italic = createToggleButton(images.italic(), strings.italic()));
topPanel.add(underline = createToggleButton(images.underline(),
strings.underline()));
topPanel.add(subscript = createToggleButton(images.subscript(),
strings.subscript()));
topPanel.add(superscript = createToggleButton(images.superscript(),
strings.superscript()));
topPanel.add(justifyLeft = createPushButton(images.justifyLeft(),
strings.justifyLeft()));
topPanel.add(justifyCenter = createPushButton(images.justifyCenter(),
strings.justifyCenter()));
topPanel.add(justifyRight = createPushButton(images.justifyRight(),
strings.justifyRight()));
}
if (extended != null) {
topPanel.add(strikethrough = createToggleButton(images.strikeThrough(),
strings.strikeThrough()));
topPanel.add(indent = createPushButton(images.indent(), strings.indent()));
topPanel.add(outdent = createPushButton(images.outdent(), strings.outdent()));
topPanel.add(hr = createPushButton(images.hr(), strings.hr()));
topPanel.add(ol = createPushButton(images.ol(), strings.ol()));
topPanel.add(ul = createPushButton(images.ul(), strings.ul()));
topPanel.add(insertImage = createPushButton(images.insertImage(),
strings.insertImage()));
topPanel.add(createLink = createPushButton(images.createLink(),
strings.createLink()));
topPanel.add(removeLink = createPushButton(images.removeLink(),
strings.removeLink()));
topPanel.add(removeFormat = createPushButton(images.removeFormat(),
strings.removeFormat()));
}
if (basic != null) {
bottomPanel.add(backColors = createColorList("Background"));
bottomPanel.add(foreColors = createColorList("Foreground"));
bottomPanel.add(fonts = createFontList());
bottomPanel.add(fontSizes = createFontSizes());
// We only use these listeners for updating status, so don"t hook them up
// unless at least basic editing is supported.
richText.addKeyboardListener(listener);
richText.addClickListener(listener);
}
}
private ListBox createColorList(String caption) {
ListBox lb = new ListBox();
lb.addChangeListener(listener);
lb.setVisibleItemCount(1);
lb.addItem(caption);
lb.addItem(strings.white(), "white");
lb.addItem(strings.black(), "black");
lb.addItem(strings.red(), "red");
lb.addItem(strings.green(), "green");
lb.addItem(strings.yellow(), "yellow");
lb.addItem(strings.blue(), "blue");
return lb;
}
private ListBox createFontList() {
ListBox lb = new ListBox();
lb.addChangeListener(listener);
lb.setVisibleItemCount(1);
lb.addItem(strings.font(), "");
lb.addItem(strings.normal(), "");
lb.addItem("Times New Roman", "Times New Roman");
lb.addItem("Arial", "Arial");
lb.addItem("Courier New", "Courier New");
lb.addItem("Georgia", "Georgia");
lb.addItem("Trebuchet", "Trebuchet");
lb.addItem("Verdana", "Verdana");
return lb;
}
private ListBox createFontSizes() {
ListBox lb = new ListBox();
lb.addChangeListener(listener);
lb.setVisibleItemCount(1);
lb.addItem(strings.size());
lb.addItem(strings.xxsmall());
lb.addItem(strings.xsmall());
lb.addItem(strings.small());
lb.addItem(strings.medium());
lb.addItem(strings.large());
lb.addItem(strings.xlarge());
lb.addItem(strings.xxlarge());
return lb;
}
private PushButton createPushButton(AbstractImagePrototype img, String tip) {
PushButton pb = new PushButton(img.createImage());
pb.addClickListener(listener);
pb.setTitle(tip);
return pb;
}
private ToggleButton createToggleButton(AbstractImagePrototype img, String tip) {
ToggleButton tb = new ToggleButton(img.createImage());
tb.addClickListener(listener);
tb.setTitle(tip);
return tb;
}
/**
* Updates the status of all the stateful buttons.
*/
private void updateStatus() {
if (basic != null) {
bold.setDown(basic.isBold());
italic.setDown(basic.isItalic());
underline.setDown(basic.isUnderlined());
subscript.setDown(basic.isSubscript());
superscript.setDown(basic.isSuperscript());
}
if (extended != null) {
strikethrough.setDown(extended.isStrikethrough());
}
}
} bold = Toggle Bold createLink = Create Link hr = Insert Horizontal Rule indent = Indent Right insertImage = Insert Image italic = Toggle Italic justifyCenter = Center justifyLeft = Left Justify justifyRight = Right Justify ol = Insert Ordered List outdent = Indent Left removeFormat = Remove Formatting removeLink = Remove Link strikeThrough = Toggle Strikethrough subscript = Toggle Subscript superscript = Toggle Superscript ul = Insert Unordered List underline = Toggle Underline color = Color black = Black white = White red = Red green = Green yellow = Yellow blue = Blue font = Font normal = Normal size = Size xxsmall = XX-Small xsmall = X-Small small = Small medium = Medium large = Large xlarge = X-Large xxlarge = XX-Large
</source>
