/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to you 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 pivot.demos.dnd;
import java.io.IOException;
import pivot.collections.Dictionary;
import pivot.io.FileList;
import pivot.wtk.Application;
import pivot.wtk.Button;
import pivot.wtk.ButtonPressListener;
import pivot.wtk.Clipboard;
import pivot.wtk.Component;
import pivot.wtk.Display;
import pivot.wtk.DragSource;
import pivot.wtk.DropAction;
import pivot.wtk.DropTarget;
import pivot.wtk.ImageView;
import pivot.wtk.Label;
import pivot.wtk.ListView;
import pivot.wtk.LocalManifest;
import pivot.wtk.Manifest;
import pivot.wtk.Point;
import pivot.wtk.PushButton;
import pivot.wtk.Visual;
import pivot.wtk.Window;
import pivot.wtk.media.Image;
import pivot.wtkx.WTKXSerializer;
public class DragAndDropDemo implements Application {
private Window window = null;
public void startup(Display display, Dictionary<String, String> properties)
throws Exception {
WTKXSerializer wtkxSerializer = new WTKXSerializer();
window = new Window((Component)wtkxSerializer.readObject(getClass().getResource("drag_and_drop.wtkx")));
// Text
final Label label = (Label)wtkxSerializer.getObjectByName("label");
label.setDragSource(new DragSource() {
private LocalManifest content = null;
public boolean beginDrag(Component component, int x, int y) {
String text = label.getText();
if (text != null) {
content = new LocalManifest();
content.putText(label.getText());
}
return (content != null);
}
public void endDrag(Component component, DropAction dropAction) {
content = null;
}
public boolean isNative() {
return true;
}
public LocalManifest getContent() {
return content;
}
public Visual getRepresentation() {
return null;
}
public Point getOffset() {
return null;
}
public int getSupportedDropActions() {
return DropAction.COPY.getMask();
}
});
label.setDropTarget(new DropTarget() {
public DropAction dragEnter(Component component, Manifest dragContent,
int supportedDropActions, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsText()
&& DropAction.COPY.isSelected(supportedDropActions)) {
dropAction = DropAction.COPY;
}
return dropAction;
}
public void dragExit(Component component) {
}
public DropAction dragMove(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsText() ? DropAction.COPY : null);
}
public DropAction userDropActionChange(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsText() ? DropAction.COPY : null);
}
public DropAction drop(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsText()) {
try {
label.setText(dragContent.getText());
dropAction = DropAction.COPY;
} catch(IOException exception) {
System.err.println(exception);
}
}
dragExit(component);
return dropAction;
}
});
PushButton copyTextButton = (PushButton)wtkxSerializer.getObjectByName("copyTextButton");
copyTextButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
String text = label.getText();
LocalManifest clipboardContent = new LocalManifest();
clipboardContent.putText(text);
Clipboard.setContent(clipboardContent);
}
});
PushButton pasteTextButton = (PushButton)wtkxSerializer.getObjectByName("pasteTextButton");
pasteTextButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
Manifest clipboardContent = Clipboard.getContent();
if (clipboardContent != null
&& clipboardContent.containsText()) {
try {
label.setText(clipboardContent.getText());
} catch(IOException exception) {
System.err.println(exception);
}
}
}
});
// Images
final ImageView imageView = (ImageView)wtkxSerializer.getObjectByName("imageView");
imageView.setDragSource(new DragSource() {
private LocalManifest content = null;
public boolean beginDrag(Component component, int x, int y) {
Image image = imageView.getImage();
if (image != null) {
content = new LocalManifest();
content.putImage(image);
}
return (content != null);
}
public void endDrag(Component component, DropAction dropAction) {
content = null;
}
public boolean isNative() {
return true;
}
public LocalManifest getContent() {
return content;
}
public Visual getRepresentation() {
return null;
}
public Point getOffset() {
return null;
}
public int getSupportedDropActions() {
return DropAction.COPY.getMask();
}
});
imageView.setDropTarget(new DropTarget() {
public DropAction dragEnter(Component component, Manifest dragContent,
int supportedDropActions, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsImage()
&& DropAction.COPY.isSelected(supportedDropActions)) {
dropAction = DropAction.COPY;
}
return dropAction;
}
public void dragExit(Component component) {
}
public DropAction dragMove(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsImage() ? DropAction.COPY : null);
}
public DropAction userDropActionChange(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsImage() ? DropAction.COPY : null);
}
public DropAction drop(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsImage()) {
try {
imageView.setImage(dragContent.getImage());
dropAction = DropAction.COPY;
} catch(IOException exception) {
System.err.println(exception);
}
}
dragExit(component);
return dropAction;
}
});
PushButton copyImageButton = (PushButton)wtkxSerializer.getObjectByName("copyImageButton");
copyImageButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
Image image = imageView.getImage();
if (image != null) {
LocalManifest clipboardContent = new LocalManifest();
clipboardContent.putImage(image);
Clipboard.setContent(clipboardContent);
}
}
});
PushButton pasteImageButton = (PushButton)wtkxSerializer.getObjectByName("pasteImageButton");
pasteImageButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
Manifest clipboardContent = Clipboard.getContent();
if (clipboardContent != null
&& clipboardContent.containsImage()) {
try {
imageView.setImage(clipboardContent.getImage());
} catch(IOException exception) {
System.err.println(exception);
}
}
}
});
// Files
final ListView listView = (ListView)wtkxSerializer.getObjectByName("listView");
listView.setListData(new FileList());
listView.setDragSource(new DragSource() {
private LocalManifest content = null;
public boolean beginDrag(Component component, int x, int y) {
ListView listView = (ListView)component;
FileList fileList = (FileList)listView.getListData();
if (fileList.getLength() > 0) {
content = new LocalManifest();
content.putFileList(fileList);
}
return (content != null);
}
public void endDrag(Component component, DropAction dropAction) {
content = null;
}
public boolean isNative() {
return true;
}
public LocalManifest getContent() {
return content;
}
public Visual getRepresentation() {
return null;
}
public Point getOffset() {
return null;
}
public int getSupportedDropActions() {
return DropAction.COPY.getMask();
}
});
listView.setDropTarget(new DropTarget() {
public DropAction dragEnter(Component component, Manifest dragContent,
int supportedDropActions, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsFileList()
&& DropAction.COPY.isSelected(supportedDropActions)) {
dropAction = DropAction.COPY;
}
return dropAction;
}
public void dragExit(Component component) {
}
public DropAction dragMove(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsFileList() ? DropAction.COPY : null);
}
public DropAction userDropActionChange(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
return (dragContent.containsFileList() ? DropAction.COPY : null);
}
public DropAction drop(Component component, Manifest dragContent,
int supportedDropActions, int x, int y, DropAction userDropAction) {
DropAction dropAction = null;
if (dragContent.containsFileList()) {
try {
listView.setListData(dragContent.getFileList());
dropAction = DropAction.COPY;
} catch(IOException exception) {
System.err.println(exception);
}
}
dragExit(component);
return dropAction;
}
});
PushButton copyFilesButton = (PushButton)wtkxSerializer.getObjectByName("copyFilesButton");
copyFilesButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
// TODO
}
});
PushButton pasteFilesButton = (PushButton)wtkxSerializer.getObjectByName("pasteFilesButton");
pasteFilesButton.getButtonPressListeners().add(new ButtonPressListener() {
public void buttonPressed(Button button) {
// TODO
}
});
// Open the window
window.setTitle("Drag and Drop Demo");
window.setMaximized(true);
window.open(display);
}
public boolean shutdown(boolean optional) {
window.close();
return true;
}
public void suspend() {
}
public void resume() {
}
}