Examples with DropTarget org.eclipse.swt.dnd.DropTarget used on opensource projects

Example 56 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project archi by archimatetool.

the class IconSection method createControls.

@Override
protected void createControls(Composite parent) {
    createLabel(parent, Messages.IconSection_9, ITabbedLayoutConstants.STANDARD_LABEL_WIDTH, SWT.NONE);
    final int canvasSize = IIconic.MAX_IMAGE_SIZE;
    fCanvas = new Canvas(parent, SWT.BORDER);
    getWidgetFactory().adapt(fCanvas);
    GridData gd = new GridData(SWT.NONE, SWT.NONE, false, false);
    gd.widthHint = canvasSize;
    gd.heightHint = canvasSize;
    fCanvas.setLayoutData(gd);
    GridLayout layout = new GridLayout();
    layout.marginWidth = 0;
    layout.marginHeight = 0;
    fCanvas.setLayout(layout);
    fCanvas.addDisposeListener(new DisposeListener() {

        @Override
        public void widgetDisposed(DisposeEvent e) {
            disposeImage();
        }
    });
    fCanvas.addListener(SWT.MouseDoubleClick, new Listener() {

        @Override
        public void handleEvent(Event event) {
            if (!isLocked(getFirstSelectedObject())) {
                chooseImage();
            }
        }
    });
    fCanvas.addPaintListener(new PaintListener() {

        @Override
        public void paintControl(PaintEvent e) {
            if (fImage != null) {
                Rectangle bounds = fImage.getBounds();
                int x = (canvasSize - bounds.width) / 2;
                int y = (canvasSize - bounds.height) / 2;
                e.gc.drawImage(fImage, x, y);
            }
        }
    });
    String tooltip = Messages.IconSection_10;
    fCanvas.setToolTipText(tooltip);
    DropTarget target = new DropTarget(fCanvas, DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_DEFAULT);
    target.setTransfer(new Transfer[] { FileTransfer.getInstance() });
    target.addDropListener(new DropTargetAdapter() {

        @Override
        public void drop(DropTargetEvent event) {
            if (event.data instanceof String[]) {
                if (!isLocked(getFirstSelectedObject())) {
                    File file = new File(((String[]) event.data)[0]);
                    setImage(file);
                }
            }
        }
    });
    // Image Button
    createImageButton(parent);
    // Position
    createLabel(parent, Messages.IconSection_11, ITabbedLayoutConstants.STANDARD_LABEL_WIDTH, SWT.CENTER);
    fComboPosition = new Combo(parent, SWT.READ_ONLY);
    fComboPosition.setItems(fComboPositionItems);
    gd = new GridData(SWT.NONE, SWT.NONE, false, false);
    fComboPosition.setLayoutData(gd);
    fComboPosition.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            CompoundCommand result = new CompoundCommand();
            for (EObject iconic : getEObjects()) {
                if (isAlive(iconic)) {
                    Command cmd = new EObjectFeatureCommand(Messages.IconSection_12, iconic, ICanvasPackage.Literals.ICONIC__IMAGE_POSITION, fComboPosition.getSelectionIndex());
                    if (cmd.canExecute()) {
                        result.add(cmd);
                    }
                }
            }
            executeCommand(result.unwrap());
        }
    });
    // Help
    PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, HELP_ID);
}

Example 57 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project eclipse.platform.swt by eclipse.

the class DNDExample method createDropTarget.

private void createDropTarget() {
    if (dropTarget != null)
        dropTarget.dispose();
    dropTarget = new DropTarget(dropControl, dropOperation);
    dropTarget.setTransfer(dropTypes);
    dropTarget.addDropListener(new DropTargetListener() {

        @Override
        public void dragEnter(DropTargetEvent event) {
            dropConsole.append(">>dragEnter\n");
            printEvent(event);
            if (event.detail == DND.DROP_DEFAULT) {
                event.detail = dropDefaultOperation;
            }
            event.feedback = dropFeedback;
        }

        @Override
        public void dragLeave(DropTargetEvent event) {
            dropConsole.append(">>dragLeave\n");
            printEvent(event);
        }

        @Override
        public void dragOperationChanged(DropTargetEvent event) {
            dropConsole.append(">>dragOperationChanged\n");
            printEvent(event);
            if (event.detail == DND.DROP_DEFAULT) {
                event.detail = dropDefaultOperation;
            }
            event.feedback = dropFeedback;
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            dropConsole.append(">>dragOver\n");
            printEvent(event);
            event.feedback = dropFeedback;
        }

        @Override
        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 (String string : strings) {
                            text.insert(string);
                        }
                        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 (String string : strings) {
                            TableItem item = new TableItem(table, SWT.NONE, index);
                            item.setText(0, string);
                            item.setText(1, "dropped item");
                        }
                        TableColumn[] columns = table.getColumns();
                        for (TableColumn column : columns) {
                            column.pack();
                        }
                        break;
                    }
                case TEXT:
                    {
                        Text text = (Text) dropControl;
                        for (String string : strings) {
                            text.append(string + "\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 (String string : strings) {
                            TreeItem item = parentItem != null ? new TreeItem(parentItem, SWT.NONE) : new TreeItem(tree, SWT.NONE);
                            item.setText(string);
                        }
                        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 (String string : strings) {
                            list.add(string);
                        }
                        break;
                    }
                case COMBO:
                    {
                        Combo combo = (Combo) dropControl;
                        combo.setText(strings[0]);
                        break;
                    }
                default:
                    throw new SWTError(SWT.ERROR_NOT_IMPLEMENTED);
            }
        }

        @Override
        public void dropAccept(DropTargetEvent event) {
            dropConsole.append(">>dropAccept\n");
            printEvent(event);
        }
    });
}

Example 58 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project eclipse.platform.swt by eclipse.

the class FileViewer method createTreeDropTarget.

/**
 * Creates the Drag & Drop DropTarget for items being dropped onto the tree.
 *
 * @return the DropTarget for the tree
 */
private DropTarget createTreeDropTarget(final Tree tree) {
    DropTarget dropTarget = new DropTarget(tree, DND.DROP_MOVE | DND.DROP_COPY);
    dropTarget.setTransfer(FileTransfer.getInstance());
    dropTarget.addDropListener(new DropTargetAdapter() {

        @Override
        public void dragEnter(DropTargetEvent event) {
            isDropping = true;
        }

        @Override
        public void dragLeave(DropTargetEvent event) {
            isDropping = false;
            handleDeferredRefresh();
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            dropTargetValidate(event, getTargetFile(event));
            event.feedback |= DND.FEEDBACK_EXPAND | DND.FEEDBACK_SCROLL;
        }

        @Override
        public void drop(DropTargetEvent event) {
            File targetFile = getTargetFile(event);
            if (dropTargetValidate(event, targetFile))
                dropTargetHandleDrop(event, targetFile);
        }

        private File getTargetFile(DropTargetEvent event) {
            // Determine the target File for the drop
            TreeItem item = tree.getItem(tree.toControl(new Point(event.x, event.y)));
            File targetFile = null;
            if (item != null) {
                // We are over a particular item in the tree, use the item's file
                targetFile = (File) item.getData(TREEITEMDATA_FILE);
            }
            return targetFile;
        }
    });
    return dropTarget;
}

Example 59 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project eclipse.platform.swt by eclipse.

the class FileViewer method createTableDropTarget.

/**
 * Creates the Drag & Drop DropTarget for items being dropped onto the table.
 *
 * @return the DropTarget for the table
 */
private DropTarget createTableDropTarget(final Table table) {
    DropTarget dropTarget = new DropTarget(table, DND.DROP_MOVE | DND.DROP_COPY);
    dropTarget.setTransfer(FileTransfer.getInstance());
    dropTarget.addDropListener(new DropTargetAdapter() {

        @Override
        public void dragEnter(DropTargetEvent event) {
            isDropping = true;
        }

        @Override
        public void dragLeave(DropTargetEvent event) {
            isDropping = false;
            handleDeferredRefresh();
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            dropTargetValidate(event, getTargetFile(event));
            event.feedback |= DND.FEEDBACK_EXPAND | DND.FEEDBACK_SCROLL;
        }

        @Override
        public void drop(DropTargetEvent event) {
            File targetFile = getTargetFile(event);
            if (dropTargetValidate(event, targetFile))
                dropTargetHandleDrop(event, targetFile);
        }

        private File getTargetFile(DropTargetEvent event) {
            // Determine the target File for the drop
            TableItem item = table.getItem(table.toControl(new Point(event.x, event.y)));
            File targetFile = null;
            if (item == null) {
                // If it is a COPY, we can use the table's root file.
                if (event.detail == DND.DROP_COPY) {
                    targetFile = (File) table.getData(TABLEDATA_DIR);
                }
            } else {
                // We are over a particular item in the table, use the item's file
                targetFile = (File) item.getData(TABLEITEMDATA_FILE);
            }
            return targetFile;
        }
    });
    return dropTarget;
}

Example 60 with DropTarget

use of org.eclipse.swt.dnd.DropTarget in project eclipse.platform.swt by eclipse.

the class Bug307441_DnDOverlappingControls method setDropTargetForLabel.

public static void setDropTargetForLabel(final Label control) {
    int operations = DND.DROP_MOVE | DND.DROP_COPY | DND.DROP_LINK;
    DropTarget target = new DropTarget(control, operations);
    target.setTransfer(new Transfer[] { URLTransfer.getInstance() });
    target.addDropListener(new DropTargetListener() {

        @Override
        public void dragEnter(DropTargetEvent e) {
            System.out.println("dragEnter=" + control.getText());
            if (e.detail == DND.DROP_NONE)
                e.detail = DND.DROP_LINK;
        }

        @Override
        public void dragOperationChanged(DropTargetEvent e) {
            if (e.detail == DND.DROP_NONE)
                e.detail = DND.DROP_LINK;
        }

        @Override
        public void drop(DropTargetEvent event) {
            if (event.data == null) {
                event.detail = DND.DROP_NONE;
                return;
            }
            control.setText(((String) event.data));
        }

        @Override
        public void dragLeave(DropTargetEvent arg0) {
            // TODO Auto-generated method stub
            System.out.println("dragLeave=" + control.getText());
        }

        @Override
        public void dragOver(DropTargetEvent arg0) {
        // TODO Auto-generated method stub
        }

        @Override
        public void dropAccept(DropTargetEvent arg0) {
        // TODO Auto-generated method stub
        }
    });
}