diff options
Diffstat (limited to 'examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java')
| -rw-r--r-- | examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java | 1429 |
1 files changed, 0 insertions, 1429 deletions
diff --git a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java b/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java deleted file mode 100644 index 0debc9d340..0000000000 --- a/examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/dnd/DNDExample.java +++ /dev/null @@ -1,1429 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2007 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.examples.dnd; - - -import java.net.*; - -import org.eclipse.swt.*; -import org.eclipse.swt.custom.*; -import org.eclipse.swt.dnd.*; -import org.eclipse.swt.events.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.layout.*; -import org.eclipse.swt.widgets.*; - -public class DNDExample { - - private int dragOperation = 0; - private Transfer[] dragTypes = new Transfer[0]; - private Control dragControl; - private int dragControlType = 0; - private DragSource dragSource; - private String dragDataText; - private String dragDataRTF; - private String dragDataHTML; - private String dragDataURL; - private String[] dragDataFiles; - private List fileList; - private boolean dragEnabled = false; - - private int dropOperation = 0; - private int dropFeedback = 0; - private int dropDefaultOperation = 0; - private Transfer[] dropTypes = new Transfer[0]; - private DropTarget dropTarget; - private Control dropControl; - private int dropControlType = 0; - private Composite defaultParent; - private boolean dropEnabled = false; - - private Text dragConsole; - private boolean dragEventDetail = false; - private Text dropConsole; - private boolean dropEventDetail = false; - - private static final int BUTTON_TOGGLE = 0; - private static final int BUTTON_RADIO = 1; - private static final int BUTTON_CHECK = 2; - private static final int CANVAS = 3; - private static final int LABEL = 4; - private static final int LIST = 5; - private static final int TABLE = 6; - private static final int TREE = 7; - private static final int TEXT = 8; - private static final int STYLED_TEXT = 9; - private static final int COMBO = 10; - -public static void main(String[] args) { - Display display = new Display(); - DNDExample example = new DNDExample(); - example.open(display); - display.dispose(); -} - -private void addDragTransfer(Transfer transfer){ - Transfer[] newTypes = new Transfer[dragTypes.length + 1]; - System.arraycopy(dragTypes, 0, newTypes, 0, dragTypes.length); - newTypes[dragTypes.length] = transfer; - dragTypes = newTypes; - if (dragSource != null) { - dragSource.setTransfer(dragTypes); - } -} - -private void addDropTransfer(Transfer transfer){ - Transfer[] newTypes = new Transfer[dropTypes.length + 1]; - System.arraycopy(dropTypes, 0, newTypes, 0, dropTypes.length); - newTypes[dropTypes.length] = transfer; - dropTypes = newTypes; - if (dropTarget != null) { - dropTarget.setTransfer(dropTypes); - } -} - -private void createDragOperations(Composite parent) { - parent.setLayout(new RowLayout(SWT.VERTICAL)); - final Button moveButton = new Button(parent, SWT.CHECK); - moveButton.setText("DND.DROP_MOVE"); - moveButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dragOperation |= DND.DROP_MOVE; - } else { - dragOperation = dragOperation &~DND.DROP_MOVE; - if (dragOperation == 0) { - dragOperation = DND.DROP_MOVE; - moveButton.setSelection(true); - } - } - if (dragEnabled) { - createDragSource(); - } - } - }); - - - Button copyButton = new Button(parent, SWT.CHECK); - copyButton.setText("DND.DROP_COPY"); - copyButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dragOperation |= DND.DROP_COPY; - } else { - dragOperation = dragOperation &~DND.DROP_COPY; - if (dragOperation == 0) { - dragOperation = DND.DROP_MOVE; - moveButton.setSelection(true); - } - } - if (dragEnabled) { - createDragSource(); - } - } - }); - - Button linkButton = new Button(parent, SWT.CHECK); - linkButton.setText("DND.DROP_LINK"); - linkButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dragOperation |= DND.DROP_LINK; - } else { - dragOperation = dragOperation &~DND.DROP_LINK; - if (dragOperation == 0) { - dragOperation = DND.DROP_MOVE; - moveButton.setSelection(true); - } - } - if (dragEnabled) { - createDragSource(); - } - } - }); - - //initialize state - moveButton.setSelection(true); - copyButton.setSelection(true); - linkButton.setSelection(true); - dragOperation |= DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK; -} - -private void createDragSource() { - if (dragSource != null) dragSource.dispose(); - dragSource = new DragSource(dragControl, dragOperation); - dragSource.setTransfer(dragTypes); - dragSource.addDragListener(new DragSourceListener() { - public void dragFinished(org.eclipse.swt.dnd.DragSourceEvent event) { - dragConsole.append(">>dragFinished\n"); - printEvent(event); - dragDataText = dragDataRTF = dragDataHTML = dragDataURL = null; - dragDataFiles = null; - if (event.detail == DND.DROP_MOVE) { - switch(dragControlType) { - case BUTTON_CHECK: - case BUTTON_TOGGLE: - case BUTTON_RADIO: { - Button b = (Button)dragControl; - b.setText(""); - break; - } - case STYLED_TEXT: { - StyledText text = (StyledText)dragControl; - text.insert(""); - break; - } - case TABLE: { - Table table = (Table)dragControl; - TableItem[] items = table.getSelection(); - for (int i = 0; i < items.length; i++) { - items[i].dispose(); - } - break; - } - case TEXT: { - Text text = (Text)dragControl; - text.insert(""); - break; - } - case TREE: { - Tree tree = (Tree)dragControl; - TreeItem[] items = tree.getSelection(); - for (int i = 0; i < items.length; i++) { - items[i].dispose(); - } - break; - } - case CANVAS: { - dragControl.setData("STRINGS", null); - dragControl.redraw(); - break; - } - case LABEL: { - Label label = (Label)dragControl; - label.setText(""); - break; - } - case LIST: { - List list = (List)dragControl; - int[] indices = list.getSelectionIndices(); - list.remove(indices); - break; - } - case COMBO:{ - Combo combo = (Combo)dragControl; - combo.setText(""); - break; - } - } - } - } - public void dragSetData(org.eclipse.swt.dnd.DragSourceEvent event) { - dragConsole.append(">>dragSetData\n"); - printEvent(event); - if (TextTransfer.getInstance().isSupportedType(event.dataType)) { - event.data = dragDataText; - } - if (RTFTransfer.getInstance().isSupportedType(event.dataType)) { - event.data = dragDataRTF; - } - if (HTMLTransfer.getInstance().isSupportedType(event.dataType)) { - event.data = dragDataHTML; - } - if (URLTransfer.getInstance().isSupportedType(event.dataType)) { - event.data = dragDataURL; - } - if (FileTransfer.getInstance().isSupportedType(event.dataType)) { - event.data = dragDataFiles; - } - } - public void dragStart(org.eclipse.swt.dnd.DragSourceEvent event) { - dragConsole.append(">>dragStart\n"); - printEvent(event); - dragDataFiles = fileList.getItems(); - switch(dragControlType) { - case BUTTON_CHECK: - case BUTTON_TOGGLE: - case BUTTON_RADIO: { - Button b = (Button)dragControl; - dragDataText = b.getSelection() ? "true" : "false"; - break; - } - case STYLED_TEXT: { - StyledText text = (StyledText)dragControl; - String s = text.getSelectionText(); - if (s.length() == 0) { - event.doit = false; - } else { - dragDataText = s; - } - break; - } - case TABLE: { - Table table = (Table)dragControl; - TableItem[] items = table.getSelection(); - if (items.length == 0) { - event.doit = false; - } else { - StringBuffer buffer = new StringBuffer(); - for (int i = 0; i < items.length; i++) { - buffer.append(items[i].getText()); - if (items.length > 1 && i < items.length - 1) { - buffer.append("\n"); - } - } - dragDataText = buffer.toString(); - } - break; - } - case TEXT: { - Text text = (Text)dragControl; - String s = text.getSelectionText(); - if (s.length() == 0) { - event.doit = false; - } else { - dragDataText = s; - } - break; - } - case TREE: { - Tree tree = (Tree)dragControl; - TreeItem[] items = tree.getSelection(); - if (items.length == 0) { - event.doit = false; - } else { - StringBuffer buffer = new StringBuffer(); - for (int i = 0; i < items.length; i++) { - buffer.append(items[i].getText()); - if (items.length > 1 && i < items.length - 1) { - buffer.append("\n"); - } - } - dragDataText = buffer.toString(); - } - break; - } - case CANVAS: { - String[] strings = (String[])dragControl.getData("STRINGS"); - if (strings == null || strings.length == 0) { - event.doit = false; - } else { - StringBuffer buffer = new StringBuffer(); - for (int i = 0; i < strings.length; i++) { - buffer.append(strings[i]); - if (strings.length > 1 && i < strings.length - 1) { - buffer.append("\n"); - } - } - dragDataText = buffer.toString(); - } - break; - } - case LABEL: { - Label label = (Label)dragControl; - String string = label.getText(); - if (string.length() == 0) { - event.doit = false; - } else { - dragDataText = string; - } - break; - } - case LIST: { - List list = (List)dragControl; - String[] selection = list.getSelection(); - if (selection.length == 0) { - event.doit = false; - } else { - StringBuffer buffer = new StringBuffer(); - for (int i = 0; i < selection.length; i++) { - buffer.append(selection[i]); - if (selection.length > 1 && i < selection.length - 1) { - buffer.append("\n"); - } - } - dragDataText = buffer.toString(); - } - break; - } - case COMBO: { - Combo combo = (Combo) dragControl; - String string = combo.getText(); - Point selection = combo.getSelection(); - if (selection.x == selection.y) { - event.doit = false; - } else { - dragDataText = string.substring(selection.x, selection.y); - } - break; - } - default: - throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED); - } - if (dragDataText != null) { - dragDataRTF = "{\\rtf1{\\colortbl;\\red255\\green0\\blue0;}\\cf1\\b "+dragDataText+"}"; - dragDataHTML = "<b>"+dragDataText+"</b>"; - dragDataURL = "http://" + dragDataText.replace(' ', '.'); - try { - new URL(dragDataURL); - } catch (MalformedURLException e) { - dragDataURL = null; - } - } - - for (int i = 0; i < dragTypes.length; i++) { - if (dragTypes[i] instanceof TextTransfer && dragDataText == null) { - event.doit = false; - } - if (dragTypes[i] instanceof RTFTransfer && dragDataRTF == null) { - event.doit = false; - } - if (dragTypes[i] instanceof HTMLTransfer && dragDataHTML == null) { - event.doit = false; - } - if (dragTypes[i] instanceof URLTransfer && dragDataURL == null) { - event.doit = false; - } - if (dragTypes[i] instanceof FileTransfer && (dragDataFiles == null || dragDataFiles.length == 0)) { - event.doit = false; - } - } - } - }); -} - -private void createDragTypes(Composite parent) { - parent.setLayout(new GridLayout()); - Button textButton = new Button(parent, SWT.CHECK); - textButton.setText("Text Transfer"); - textButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDragTransfer(TextTransfer.getInstance()); - } else { - removeDragTransfer(TextTransfer.getInstance()); - } - } - }); - - Button b = new Button(parent, SWT.CHECK); - b.setText("RTF Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDragTransfer(RTFTransfer.getInstance()); - } else { - removeDragTransfer(RTFTransfer.getInstance()); - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("HTML Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDragTransfer(HTMLTransfer.getInstance()); - } else { - removeDragTransfer(HTMLTransfer.getInstance()); - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("URL Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDragTransfer(URLTransfer.getInstance()); - } else { - removeDragTransfer(URLTransfer.getInstance()); - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("File Transfer"); - b.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING)); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDragTransfer(FileTransfer.getInstance()); - } else { - removeDragTransfer(FileTransfer.getInstance()); - } - } - }); - b = new Button(parent, SWT.PUSH); - b.setText("Select File(s)"); - b.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING)); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - FileDialog dialog = new FileDialog(fileList.getShell(), SWT.OPEN | SWT.MULTI); - String result = dialog.open(); - if (result != null && result.length() > 0){ - fileList.removeAll(); - String separator = System.getProperty("file.separator"); - String path = dialog.getFilterPath(); - String[] names = dialog.getFileNames(); - for (int i = 0; i < names.length; i++) { - fileList.add(path+separator+names[i]); - } - } - } - }); - fileList = new List(parent, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL); - GridData data = new GridData(); - data.grabExcessHorizontalSpace = true; - data.horizontalAlignment = GridData.FILL; - data.verticalAlignment = GridData.BEGINNING; - fileList.setLayoutData(data); - - // initialize state - textButton.setSelection(true); - addDragTransfer(TextTransfer.getInstance()); -} - -private void createDragWidget(Composite parent) { - parent.setLayout(new FormLayout()); - Combo combo = new Combo(parent, SWT.READ_ONLY); - combo.setItems(new String[] {"Toggle Button", "Radio Button", "Checkbox", "Canvas", "Label", "List", "Table", "Tree", "Text", "StyledText", "Combo"}); - combo.select(LABEL); - dragControlType = combo.getSelectionIndex(); - dragControl = createWidget(dragControlType, parent, "Drag Source"); - - combo.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Object data = dragControl.getLayoutData(); - Composite parent = dragControl.getParent(); - dragControl.dispose(); - Combo c = (Combo)e.widget; - dragControlType = c.getSelectionIndex(); - dragControl = createWidget(dragControlType, parent, "Drag Source"); - dragControl.setLayoutData(data); - if (dragEnabled) createDragSource(); - parent.layout(); - } - }); - - Button b = new Button(parent, SWT.CHECK); - b.setText("DragSource"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - dragEnabled = b.getSelection(); - if (dragEnabled) { - createDragSource(); - } else { - if (dragSource != null){ - dragSource.dispose(); - } - dragSource = null; - } - } - }); - b.setSelection(true); - dragEnabled = true; - - FormData data = new FormData(); - data.top = new FormAttachment(0, 10); - data.bottom = new FormAttachment(combo, -10); - data.left = new FormAttachment(0, 10); - data.right = new FormAttachment(100, -10); - dragControl.setLayoutData(data); - - data = new FormData(); - data.bottom = new FormAttachment(100, -10); - data.left = new FormAttachment(0, 10); - combo.setLayoutData(data); - - data = new FormData(); - data.bottom = new FormAttachment(100, -10); - data.left = new FormAttachment(combo, 10); - b.setLayoutData(data); -} - -private void createDropOperations(Composite parent) { - parent.setLayout(new RowLayout(SWT.VERTICAL)); - final Button moveButton = new Button(parent, SWT.CHECK); - moveButton.setText("DND.DROP_MOVE"); - moveButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropOperation |= DND.DROP_MOVE; - } else { - dropOperation = dropOperation & ~DND.DROP_MOVE; - if (dropOperation == 0 || (dropDefaultOperation & DND.DROP_MOVE) != 0) { - dropOperation |= DND.DROP_MOVE; - moveButton.setSelection(true); - } - } - if (dropEnabled) { - createDropTarget(); - } - } - }); - - - final Button copyButton = new Button(parent, SWT.CHECK); - copyButton.setText("DND.DROP_COPY"); - copyButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropOperation |= DND.DROP_COPY; - } else { - dropOperation = dropOperation & ~DND.DROP_COPY; - if (dropOperation == 0 || (dropDefaultOperation & DND.DROP_COPY) != 0) { - dropOperation = DND.DROP_COPY; - copyButton.setSelection(true); - } - } - if (dropEnabled) { - createDropTarget(); - } - } - }); - - final Button linkButton = new Button(parent, SWT.CHECK); - linkButton.setText("DND.DROP_LINK"); - linkButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropOperation |= DND.DROP_LINK; - } else { - dropOperation = dropOperation & ~DND.DROP_LINK; - if (dropOperation == 0 || (dropDefaultOperation & DND.DROP_LINK) != 0) { - dropOperation = DND.DROP_LINK; - linkButton.setSelection(true); - } - } - if (dropEnabled) { - createDropTarget(); - } - } - }); - - Button b = new Button(parent, SWT.CHECK); - b.setText("DND.DROP_DEFAULT"); - defaultParent = new Composite(parent, SWT.NONE); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropOperation |= DND.DROP_DEFAULT; - defaultParent.setVisible(true); - } else { - dropOperation = dropOperation & ~DND.DROP_DEFAULT; - defaultParent.setVisible(false); - } - if (dropEnabled) { - createDropTarget(); - } - } - }); - - defaultParent.setVisible(false); - GridLayout layout = new GridLayout(); - layout.marginWidth = 20; - defaultParent.setLayout(layout); - Label label = new Label(defaultParent, SWT.NONE); - label.setText("Value for default operation is:"); - b = new Button(defaultParent, SWT.RADIO); - b.setText("DND.DROP_MOVE"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropDefaultOperation = DND.DROP_MOVE; - dropOperation |= DND.DROP_MOVE; - moveButton.setSelection(true); - if (dropEnabled) { - createDropTarget(); - } - } - } - }); - - b = new Button(defaultParent, SWT.RADIO); - b.setText("DND.DROP_COPY"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropDefaultOperation = DND.DROP_COPY; - dropOperation |= DND.DROP_COPY; - copyButton.setSelection(true); - if (dropEnabled) { - createDropTarget(); - } - } - } - }); - - b = new Button(defaultParent, SWT.RADIO); - b.setText("DND.DROP_LINK"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropDefaultOperation = DND.DROP_LINK; - dropOperation |= DND.DROP_LINK; - linkButton.setSelection(true); - if (dropEnabled) { - createDropTarget(); - } - } - } - }); - - b = new Button(defaultParent, SWT.RADIO); - b.setText("DND.DROP_NONE"); - b.setSelection(true); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropDefaultOperation = DND.DROP_NONE; - dropOperation &= ~DND.DROP_DEFAULT; - if (dropEnabled) { - createDropTarget(); - } - } - } - }); - - // initialize state - moveButton.setSelection(true); - copyButton.setSelection(true); - linkButton.setSelection(true); - dropOperation = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK; -} - -private void createDropTarget() { - if (dropTarget != null) dropTarget.dispose(); - dropTarget = new DropTarget(dropControl, dropOperation); - dropTarget.setTransfer(dropTypes); - dropTarget.addDropListener(new DropTargetListener() { - public void dragEnter(DropTargetEvent event) { - dropConsole.append(">>dragEnter\n"); - printEvent(event); - if (event.detail == DND.DROP_DEFAULT) { - event.detail = dropDefaultOperation; - } - event.feedback = dropFeedback; - } - public void dragLeave(DropTargetEvent event) { - dropConsole.append(">>dragLeave\n"); - printEvent(event); - } - public void dragOperationChanged(DropTargetEvent event) { - dropConsole.append(">>dragOperationChanged\n"); - printEvent(event); - if (event.detail == DND.DROP_DEFAULT) { - event.detail = dropDefaultOperation; - } - event.feedback = dropFeedback; - } - public void dragOver(DropTargetEvent event) { - dropConsole.append(">>dragOver\n"); - printEvent(event); - event.feedback = dropFeedback; - } - public void drop(DropTargetEvent event) { - dropConsole.append(">>drop\n"); - printEvent(event); - String[] strings = null; - if (TextTransfer.getInstance().isSupportedType(event.currentDataType) || - RTFTransfer.getInstance().isSupportedType(event.currentDataType) || - HTMLTransfer.getInstance().isSupportedType(event.currentDataType) || - URLTransfer.getInstance().isSupportedType(event.currentDataType)) { - strings = new String[] {(String)event.data}; - } - if (FileTransfer.getInstance().isSupportedType(event.currentDataType)) { - strings = (String[])event.data; - } - if (strings == null || strings.length == 0) { - dropConsole.append("!!Invalid data dropped"); - return; - } - - if (strings.length == 1 && (dropControlType == TABLE || - dropControlType == TREE || - dropControlType == LIST)) { - // convert string separated by "\n" into an array of strings - String string = strings[0]; - int count = 0; - int offset = string.indexOf("\n", 0); - while (offset > 0) { - count++; - offset = string.indexOf("\n", offset + 1); - } - if (count > 0) { - strings = new String[count + 1]; - int start = 0; - int end = string.indexOf("\n"); - int index = 0; - while (start < end) { - strings[index++] = string.substring(start, end); - start = end + 1; - end = string.indexOf("\n", start); - if (end == -1) end = string.length(); - } - } - } - switch(dropControlType) { - case BUTTON_CHECK: - case BUTTON_TOGGLE: - case BUTTON_RADIO: { - Button b = (Button)dropControl; - b.setText(strings[0]); - break; - } - case STYLED_TEXT: { - StyledText text = (StyledText)dropControl; - for(int i = 0; i < strings.length; i++) { - text.insert(strings[i]); - } - break; - } - case TABLE: { - Table table = (Table)dropControl; - Point p = event.display.map(null, table, event.x, event.y); - TableItem dropItem = table.getItem(p); - int index = dropItem == null ? table.getItemCount() : table.indexOf(dropItem); - for(int i = 0; i < strings.length; i++) { - TableItem item = new TableItem(table, SWT.NONE, index); - item.setText(0, strings[i]); - item.setText(1, "dropped item"); - } - TableColumn[] columns = table.getColumns(); - for (int i = 0; i < columns.length; i++) { - columns[i].pack(); - } - break; - } - case TEXT: { - Text text = (Text)dropControl; - for(int i = 0; i < strings.length; i++) { - text.append(strings[i]+"\n"); - } - break; - } - case TREE: { - Tree tree = (Tree)dropControl; - Point p = event.display.map(null, tree, event.x, event.y); - TreeItem parentItem = tree.getItem(p); - for(int i = 0; i < strings.length; i++) { - TreeItem item = parentItem != null ? new TreeItem(parentItem, SWT.NONE) : new TreeItem(tree, SWT.NONE); - item.setText(strings[i]); - } - break; - } - case CANVAS: { - dropControl.setData("STRINGS", strings); - dropControl.redraw(); - break; - } - case LABEL: { - Label label = (Label)dropControl; - label.setText(strings[0]); - break; - } - case LIST: { - List list = (List)dropControl; - for(int i = 0; i < strings.length; i++) { - list.add(strings[i]); - } - break; - } - case COMBO: { - Combo combo = (Combo)dropControl; - combo.setText(strings[0]); - break; - } - default: - throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED); - } - } - public void dropAccept(DropTargetEvent event) { - dropConsole.append(">>dropAccept\n"); - printEvent(event); - } - }); -} - -private void createFeedbackTypes(Group parent) { - parent.setLayout(new RowLayout(SWT.VERTICAL)); - Button b = new Button(parent, SWT.CHECK); - b.setText("FEEDBACK_SELECT"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropFeedback |= DND.FEEDBACK_SELECT; - } else { - dropFeedback &= ~DND.FEEDBACK_SELECT; - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("FEEDBACK_SCROLL"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropFeedback |= DND.FEEDBACK_SCROLL; - } else { - dropFeedback &= ~DND.FEEDBACK_SCROLL; - } - } - }); - - - b = new Button(parent, SWT.CHECK); - b.setText("FEEDBACK_INSERT_BEFORE"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropFeedback |= DND.FEEDBACK_INSERT_BEFORE; - } else { - dropFeedback &= ~DND.FEEDBACK_INSERT_BEFORE; - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("FEEDBACK_INSERT_AFTER"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropFeedback |= DND.FEEDBACK_INSERT_AFTER; - } else { - dropFeedback &= ~DND.FEEDBACK_INSERT_AFTER; - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("FEEDBACK_EXPAND"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - dropFeedback |= DND.FEEDBACK_EXPAND; - } else { - dropFeedback &= ~DND.FEEDBACK_EXPAND; - } - } - }); -} - -private void createDropTypes(Composite parent) { - parent.setLayout(new RowLayout(SWT.VERTICAL)); - Button textButton = new Button(parent, SWT.CHECK); - textButton.setText("Text Transfer"); - textButton.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDropTransfer(TextTransfer.getInstance()); - } else { - removeDropTransfer(TextTransfer.getInstance()); - } - } - }); - - Button b = new Button(parent, SWT.CHECK); - b.setText("RTF Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDropTransfer(RTFTransfer.getInstance()); - } else { - removeDropTransfer(RTFTransfer.getInstance()); - } - } - }); - - - b = new Button(parent, SWT.CHECK); - b.setText("HTML Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDropTransfer(HTMLTransfer.getInstance()); - } else { - removeDropTransfer(HTMLTransfer.getInstance()); - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("URL Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDropTransfer(URLTransfer.getInstance()); - } else { - removeDropTransfer(URLTransfer.getInstance()); - } - } - }); - - b = new Button(parent, SWT.CHECK); - b.setText("File Transfer"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - if (b.getSelection()) { - addDropTransfer(FileTransfer.getInstance()); - } else { - removeDropTransfer(FileTransfer.getInstance()); - } - } - }); - - // initialize state - textButton.setSelection(true); - addDropTransfer(TextTransfer.getInstance()); -} - -private void createDropWidget(Composite parent) { - parent.setLayout(new FormLayout()); - Combo combo = new Combo(parent, SWT.READ_ONLY); - combo.setItems(new String[] {"Toggle Button", "Radio Button", "Checkbox", "Canvas", "Label", "List", "Table", "Tree", "Text", "StyledText", "Combo"}); - combo.select(LABEL); - dropControlType = combo.getSelectionIndex(); - dropControl = createWidget(dropControlType, parent, "Drop Target"); - combo.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Object data = dropControl.getLayoutData(); - Composite parent = dropControl.getParent(); - dropControl.dispose(); - Combo c = (Combo)e.widget; - dropControlType = c.getSelectionIndex(); - dropControl = createWidget(dropControlType, parent, "Drop Target"); - dropControl.setLayoutData(data); - if (dropEnabled) createDropTarget(); - parent.layout(); - } - }); - - Button b = new Button(parent, SWT.CHECK); - b.setText("DropTarget"); - b.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - Button b = (Button)e.widget; - dropEnabled = b.getSelection(); - if (dropEnabled) { - createDropTarget(); - } else { - if (dropTarget != null){ - dropTarget.dispose(); - } - dropTarget = null; - } - } - }); - // initialize state - b.setSelection(true); - dropEnabled = true; - - FormData data = new FormData(); - data.top = new FormAttachment(0, 10); - data.bottom = new FormAttachment(combo, -10); - data.left = new FormAttachment(0, 10); - data.right = new FormAttachment(100, -10); - dropControl.setLayoutData(data); - - data = new FormData(); - data.bottom = new FormAttachment(100, -10); - data.left = new FormAttachment(0, 10); - combo.setLayoutData(data); - - data = new FormData(); - data.bottom = new FormAttachment(100, -10); - data.left = new FormAttachment(combo, 10); - b.setLayoutData(data); -} - -private Control createWidget(int type, Composite parent, String prefix){ - switch (type) { - case BUTTON_CHECK: { - Button button = new Button(parent, SWT.CHECK); - button.setText(prefix+" Check box"); - return button; - } - case BUTTON_TOGGLE: { - Button button = new Button(parent, SWT.TOGGLE); - button.setText(prefix+" Toggle button"); - return button; - } - case BUTTON_RADIO: { - Button button = new Button(parent, SWT.RADIO); - button.setText(prefix+" Radio button"); - return button; - } - case STYLED_TEXT: { - StyledText text = new StyledText(parent, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL); - text.setText(prefix+" Styled Text"); - return text; - } - case TABLE: { - Table table = new Table(parent, SWT.BORDER | SWT.MULTI); - table.setHeaderVisible(true); - TableColumn column0 = new TableColumn(table, SWT.LEFT); - column0.setText("Name"); - TableColumn column1 = new TableColumn(table, SWT.RIGHT); - column1.setText("Value"); - TableColumn column2 = new TableColumn(table, SWT.CENTER); - column2.setText("Description"); - for (int i = 0; i < 10; i++) { - TableItem item = new TableItem(table, SWT.NONE); - item.setText(0, prefix+" name "+i); - item.setText(1, prefix+" value "+i); - item.setText(2, prefix+" description "+i); - } - column0.pack(); - column1.pack(); - column2.pack(); - return table; - } - case TEXT: { - Text text = new Text(parent, SWT.BORDER | SWT.MULTI | SWT.V_SCROLL | SWT.H_SCROLL); - text.setText(prefix+" Text"); - return text; - } - case TREE: { - Tree tree = new Tree(parent, SWT.BORDER | SWT.MULTI); - tree.setHeaderVisible(true); - TreeColumn column0 = new TreeColumn(tree, SWT.LEFT); - column0.setText("Name"); - TreeColumn column1 = new TreeColumn(tree, SWT.RIGHT); - column1.setText("Value"); - TreeColumn column2 = new TreeColumn(tree, SWT.CENTER); - column2.setText("Description"); - for (int i = 0; i < 3; i++) { - TreeItem item = new TreeItem(tree, SWT.NONE); - item.setText(0, prefix+" name "+i); - item.setText(1, prefix+" value "+i); - item.setText(2, prefix+" description "+i); - for (int j = 0; j < 3; j++) { - TreeItem subItem = new TreeItem(item, SWT.NONE); - subItem.setText(0, prefix+" name "+i+" "+j); - subItem.setText(1, prefix+" value "+i+" "+j); - subItem.setText(2, prefix+" description "+i+" "+j); - for (int k = 0; k < 3; k++) { - TreeItem subsubItem = new TreeItem(subItem, SWT.NONE); - subsubItem.setText(0, prefix+" name "+i+" "+j+" "+k); - subsubItem.setText(1, prefix+" value "+i+" "+j+" "+k); - subsubItem.setText(2, prefix+" description "+i+" "+j+" "+k); - } - } - } - column0.pack(); - column1.pack(); - column2.pack(); - return tree; - } - case CANVAS: { - Canvas canvas = new Canvas(parent, SWT.BORDER); - canvas.setData("STRINGS", new String[] {prefix+" Canvas widget"}); - canvas.addPaintListener(new PaintListener() { - public void paintControl(PaintEvent e) { - Canvas c = (Canvas)e.widget; - Image image = (Image)c.getData("IMAGE"); - if (image != null) { - e.gc.drawImage(image, 5, 5); - } else { - String[] strings = (String[])c.getData("STRINGS"); - if (strings != null) { - FontMetrics metrics = e.gc.getFontMetrics(); - int height = metrics.getHeight(); - int y = 5; - for(int i = 0; i < strings.length; i++) { - e.gc.drawString(strings[i], 5, y); - y += height + 5; - } - } - } - } - }); - return canvas; - } - case LABEL: { - Label label = new Label(parent, SWT.BORDER); - label.setText(prefix+" Label"); - return label; - } - case LIST: { - List list = new List(parent, SWT.BORDER); - list.setItems(new String[] {prefix+" Item a", prefix+" Item b", prefix+" Item c", prefix+" Item d"}); - return list; - } - case COMBO:{ - Combo combo = new Combo(parent, SWT.BORDER); - combo.setItems(new String[] {"Item a", "Item b", "Item c", "Item d"}); - return combo; - } - default: - throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED); - } -} - -public void open(Display display) { - Shell shell = new Shell(display); - shell.setText("Drag and Drop Example"); - shell.setLayout(new FillLayout()); - - ScrolledComposite sc = new ScrolledComposite(shell, SWT.H_SCROLL | SWT.V_SCROLL); - Composite parent = new Composite(sc, SWT.NONE); - sc.setContent(parent); - parent.setLayout(new FormLayout()); - - Label dragLabel = new Label(parent, SWT.LEFT); - dragLabel.setText("Drag Source:"); - - Group dragWidgetGroup = new Group(parent, SWT.NONE); - dragWidgetGroup.setText("Widget"); - createDragWidget(dragWidgetGroup); - - Composite cLeft = new Composite(parent, SWT.NONE); - cLeft.setLayout(new GridLayout(2, false)); - - Group dragOperationsGroup = new Group(cLeft, SWT.NONE); - dragOperationsGroup.setLayoutData(new GridData(SWT.LEFT, SWT.FILL, false, false, 1, 1)); - dragOperationsGroup.setText("Allowed Operation(s):"); - createDragOperations(dragOperationsGroup); - - Group dragTypesGroup = new Group(cLeft, SWT.NONE); - dragTypesGroup.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false, 1, 1)); - dragTypesGroup.setText("Transfer Type(s):"); - createDragTypes(dragTypesGroup); - - dragConsole = new Text(cLeft, SWT.READ_ONLY | SWT.BORDER |SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI); - dragConsole.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); - Menu menu = new Menu (shell, SWT.POP_UP); - MenuItem item = new MenuItem (menu, SWT.PUSH); - item.setText ("Clear"); - item.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - dragConsole.setText(""); - } - }); - item = new MenuItem (menu, SWT.CHECK); - item.setText ("Show Event detail"); - item.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - MenuItem item = (MenuItem)e.widget; - dragEventDetail = item.getSelection(); - } - }); - dragConsole.setMenu(menu); - - Label dropLabel = new Label(parent, SWT.LEFT); - dropLabel.setText("Drop Target:"); - - Group dropWidgetGroup = new Group(parent, SWT.NONE); - dropWidgetGroup.setText("Widget"); - createDropWidget(dropWidgetGroup); - - Composite cRight = new Composite(parent, SWT.NONE); - cRight.setLayout(new GridLayout(2, false)); - - Group dropOperationsGroup = new Group(cRight, SWT.NONE); - dropOperationsGroup.setLayoutData(new GridData(SWT.LEFT, SWT.FILL, false, false, 1, 2)); - dropOperationsGroup.setText("Allowed Operation(s):"); - createDropOperations(dropOperationsGroup); - - Group dropTypesGroup = new Group(cRight, SWT.NONE); - dropTypesGroup.setText("Transfer Type(s):"); - createDropTypes(dropTypesGroup); - - Group feedbackTypesGroup = new Group(cRight, SWT.NONE); - feedbackTypesGroup.setText("Feedback Type(s):"); - createFeedbackTypes(feedbackTypesGroup); - - dropConsole = new Text(cRight, SWT.READ_ONLY | SWT.BORDER |SWT.V_SCROLL | SWT.H_SCROLL | SWT.MULTI); - dropConsole.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 2, 1)); - menu = new Menu (shell, SWT.POP_UP); - item = new MenuItem (menu, SWT.PUSH); - item.setText ("Clear"); - item.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - dropConsole.setText(""); - } - }); - item = new MenuItem (menu, SWT.CHECK); - item.setText ("Show Event detail"); - item.addSelectionListener(new SelectionAdapter() { - public void widgetSelected(SelectionEvent e) { - MenuItem item = (MenuItem)e.widget; - dropEventDetail = item.getSelection(); - } - }); - dropConsole.setMenu(menu); - - if (dragEnabled) createDragSource(); - if (dropEnabled) createDropTarget(); - - int height = 200; - FormData data = new FormData(); - data.top = new FormAttachment(0, 10); - data.left = new FormAttachment(0, 10); - dragLabel.setLayoutData(data); - - data = new FormData(); - data.top = new FormAttachment(dragLabel, 10); - data.left = new FormAttachment(0, 10); - data.right = new FormAttachment(50, -10); - data.height = height; - dragWidgetGroup.setLayoutData(data); - - data = new FormData(); - data.top = new FormAttachment(dragWidgetGroup, 10); - data.left = new FormAttachment(0, 10); - data.right = new FormAttachment(50, -10); - data.bottom = new FormAttachment(100, -10); - cLeft.setLayoutData(data); - - data = new FormData(); - data.top = new FormAttachment(0, 10); - data.left = new FormAttachment(cLeft, 10); - dropLabel.setLayoutData(data); - - data = new FormData(); - data.top = new FormAttachment(dropLabel, 10); - data.left = new FormAttachment(cLeft, 10); - data.right = new FormAttachment(100, -10); - data.height = height; - dropWidgetGroup.setLayoutData(data); - - data = new FormData(); - data.top = new FormAttachment(dropWidgetGroup, 10); - data.left = new FormAttachment(cLeft, 10); - data.right = new FormAttachment(100, -10); - data.bottom = new FormAttachment(100, -10); - cRight.setLayoutData(data); - - sc.setMinSize(parent.computeSize(SWT.DEFAULT, SWT.DEFAULT)); - sc.setExpandHorizontal(true); - sc.setExpandVertical(true); - - Point size = shell.computeSize(SWT.DEFAULT, SWT.DEFAULT); - Rectangle monitorArea = shell.getMonitor().getClientArea(); - shell.setSize(Math.min(size.x, monitorArea.width - 20), Math.min(size.y, monitorArea.height - 20)); - shell.open(); - - while (!shell.isDisposed()) { - if (!display.readAndDispatch()) - display.sleep(); - } -} - -private void printEvent(DragSourceEvent e) { - if (!dragEventDetail) return; - StringBuffer sb = new StringBuffer(); - sb.append("widget: "); sb.append(e.widget); - sb.append(", time: "); sb.append(e.time); - sb.append(", operation: "); sb.append(e.detail); - sb.append(", type: "); sb.append(e.dataType != null ? e.dataType.type : 0); - sb.append(", doit: "); sb.append(e.doit); - sb.append(", data: "); sb.append(e.data); - sb.append("\n"); - dragConsole.append(sb.toString()); -} - -private void printEvent(DropTargetEvent e) { - if (!dropEventDetail) return; - StringBuffer sb = new StringBuffer(); - sb.append("widget; "); sb.append(e.widget); - sb.append(", time: "); sb.append(e.time); - sb.append(", x: "); sb.append(e.x); - sb.append(", y: "); sb.append(e.y); - sb.append(", item: "); sb.append(e.item); - sb.append(", operations: "); sb.append(e.operations); - sb.append(", operation: "); sb.append(e.detail); - sb.append(", feedback: "); sb.append(e.feedback); - if (e.dataTypes != null) { - for (int i = 0; i < e.dataTypes.length; i++) { - sb.append(", dataType "); sb.append(i); sb.append(": "); sb.append(e.dataTypes[i].type); - } - } else { - sb.append(", dataTypes: none"); - } - sb.append(", currentDataType: "); sb.append(e.currentDataType); - sb.append(", data: "); sb.append(e.data); - sb.append("\n"); - dropConsole.append(sb.toString()); -} - -private void removeDragTransfer(Transfer transfer){ - if (dragTypes.length == 1) { - dragTypes = new Transfer[0]; - } else { - int index = -1; - for(int i = 0; i < dragTypes.length; i++) { - if (dragTypes[i] == transfer) { - index = i; - break; - } - } - if (index == -1) return; - Transfer[] newTypes = new Transfer[dragTypes.length - 1]; - System.arraycopy(dragTypes, 0, newTypes, 0, index); - System.arraycopy(dragTypes, index + 1, newTypes, index, dragTypes.length - index - 1); - dragTypes = newTypes; - } - if (dragSource != null) { - dragSource.setTransfer(dragTypes); - } -} - -private void removeDropTransfer(Transfer transfer){ - if (dropTypes.length == 1) { - dropTypes = new Transfer[0]; - } else { - int index = -1; - for(int i = 0; i < dropTypes.length; i++) { - if (dropTypes[i] == transfer) { - index = i; - break; - } - } - if (index == -1) return; - Transfer[] newTypes = new Transfer[dropTypes.length - 1]; - System.arraycopy(dropTypes, 0, newTypes, 0, index); - System.arraycopy(dropTypes, index + 1, newTypes, index, dropTypes.length - index - 1); - dropTypes = newTypes; - } - if (dropTarget != null) { - dropTarget.setTransfer(dropTypes); - } -} -} |