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

Example 26 with Transfer

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

the class DNDExample method createDragSource.

private void createDragSource() {
    if (dragSource != null)
        dragSource.dispose();
    dragSource = new DragSource(dragControl, dragOperation);
    dragSource.setTransfer(dragTypes);
    dragSource.addDragListener(new DragSourceListener() {

        @Override
        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 (TableItem item : items) {
                                item.dispose();
                            }
                            break;
                        }
                    case TEXT:
                        {
                            Text text = (Text) dragControl;
                            text.insert("");
                            break;
                        }
                    case TREE:
                        {
                            Tree tree = (Tree) dragControl;
                            TreeItem[] items = tree.getSelection();
                            for (TreeItem item : items) {
                                item.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;
                        }
                }
            }
        }

        @Override
        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;
            }
        }

        @Override
        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 {
                            StringBuilder buffer = new StringBuilder();
                            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 {
                            StringBuilder buffer = new StringBuilder();
                            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 {
                            StringBuilder buffer = new StringBuilder();
                            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 {
                            StringBuilder buffer = new StringBuilder();
                            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 (Transfer dragType : dragTypes) {
                if (dragType instanceof TextTransfer && dragDataText == null) {
                    event.doit = false;
                }
                if (dragType instanceof RTFTransfer && dragDataRTF == null) {
                    event.doit = false;
                }
                if (dragType instanceof HTMLTransfer && dragDataHTML == null) {
                    event.doit = false;
                }
                if (dragType instanceof URLTransfer && dragDataURL == null) {
                    event.doit = false;
                }
                if (dragType instanceof FileTransfer && (dragDataFiles == null || dragDataFiles.length == 0)) {
                    event.doit = false;
                }
            }
        }
    });
}

Example 27 with Transfer

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

the class DNDExample method createDropTypes.

private void createDropTypes(Composite parent) {
    parent.setLayout(new RowLayout(SWT.VERTICAL));
    Button textButton = new Button(parent, SWT.CHECK);
    textButton.setText("Text Transfer");
    textButton.addSelectionListener(widgetSelectedAdapter(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(widgetSelectedAdapter(e -> {
        Button eb = (Button) e.widget;
        if (eb.getSelection()) {
            addDropTransfer(RTFTransfer.getInstance());
        } else {
            removeDropTransfer(RTFTransfer.getInstance());
        }
    }));
    b = new Button(parent, SWT.CHECK);
    b.setText("HTML Transfer");
    b.addSelectionListener(widgetSelectedAdapter(e -> {
        Button eb = (Button) e.widget;
        if (eb.getSelection()) {
            addDropTransfer(HTMLTransfer.getInstance());
        } else {
            removeDropTransfer(HTMLTransfer.getInstance());
        }
    }));
    b = new Button(parent, SWT.CHECK);
    b.setText("URL Transfer");
    b.addSelectionListener(widgetSelectedAdapter(e -> {
        Button eb = (Button) e.widget;
        if (eb.getSelection()) {
            addDropTransfer(URLTransfer.getInstance());
        } else {
            removeDropTransfer(URLTransfer.getInstance());
        }
    }));
    b = new Button(parent, SWT.CHECK);
    b.setText("File Transfer");
    b.addSelectionListener(widgetSelectedAdapter(e -> {
        Button eb = (Button) e.widget;
        if (eb.getSelection()) {
            addDropTransfer(FileTransfer.getInstance());
        } else {
            removeDropTransfer(FileTransfer.getInstance());
        }
    }));
    // initialize state
    textButton.setSelection(true);
    addDropTransfer(TextTransfer.getInstance());
}

Example 28 with Transfer

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

the class Bug186038_DNDActivateEvent method main.

public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);
    GridLayout layout = new GridLayout();
    layout.numColumns = 2;
    shell.setLayout(layout);
    // create the drop down widget.shell
    final Shell dropDownShell = new Shell(shell, SWT.ON_TOP | SWT.DROP_DOWN);
    dropDownShell.setLayout(new RowLayout());
    dropDownShell.setVisible(false);
    dropDownShell.addListener(SWT.Activate, event -> System.out.println("dropDownShell gets Activate event!"));
    dropDownShell.addListener(SWT.Deactivate, event -> {
        System.out.println("dropDownShell entering Deactivate event handler and will hide the dropdown widget.shell");
        hideDropDown(dropDownShell);
    });
    dropDownShell.addListener(SWT.Close, event -> hideDropDown(dropDownShell));
    // create the button1 and when it is hovered, display the dropdown
    final Button button1 = new Button(shell, SWT.PUSH);
    button1.setText("Drop target");
    button1.addSelectionListener(new SelectionAdapter() {

        @Override
        public void widgetSelected(SelectionEvent e) {
            if (!dropDownShell.isVisible()) {
                showDropDown(button1, dropDownShell);
            }
        }
    });
    int operations = DND.DROP_COPY | DND.DROP_DEFAULT;
    DropTarget target = new DropTarget(button1, operations);
    // Provide data in Text format
    Transfer[] types = new Transfer[] { TextTransfer.getInstance() };
    target.setTransfer(types);
    target.addDropListener(new DropTargetListener() {

        @Override
        public void dragEnter(DropTargetEvent event) {
            if (event.detail == DND.DROP_DEFAULT) {
                if ((event.operations & DND.DROP_COPY) != 0) {
                    event.detail = DND.DROP_COPY;
                } else {
                    event.detail = DND.DROP_NONE;
                }
            }
            for (int i = 0; i < event.dataTypes.length; i++) {
                if (TextTransfer.getInstance().isSupportedType(event.dataTypes[i])) {
                    event.currentDataType = event.dataTypes[i];
                    if (event.detail != DND.DROP_COPY) {
                        event.detail = DND.DROP_NONE;
                    }
                    break;
                }
            }
        }

        @Override
        public void dragOver(DropTargetEvent event) {
            event.feedback = DND.FEEDBACK_SELECT;
            if (!dropDownShell.isVisible()) {
                showDropDown(button1, dropDownShell);
            }
        }

        @Override
        public void dragOperationChanged(DropTargetEvent event) {
        }

        @Override
        public void dragLeave(DropTargetEvent event) {
        }

        @Override
        public void dropAccept(DropTargetEvent event) {
        }

        @Override
        public void drop(DropTargetEvent event) {
            if (TextTransfer.getInstance().isSupportedType(event.currentDataType)) {
                String text = (String) event.data;
                System.out.println(text);
            }
        }
    });
    // create the button2 as the drag source
    final Button button2 = new Button(shell, SWT.PUSH);
    button2.setText("Drag source");
    operations = DND.DROP_COPY;
    DragSource source = new DragSource(button2, operations);
    // Provide data in Text format
    source.setTransfer(types);
    source.addDragListener(new DragSourceListener() {

        @Override
        public void dragStart(DragSourceEvent event) {
            if (button2.getText().length() == 0) {
                event.doit = false;
            }
        }

        @Override
        public void dragSetData(DragSourceEvent event) {
            // Provide the data of the requested type.
            if (TextTransfer.getInstance().isSupportedType(event.dataType)) {
                event.data = button2.getText();
            }
        }

        @Override
        public void dragFinished(DragSourceEvent event) {
        }
    });
    shell.setSize(300, 300);
    shell.addDisposeListener(e -> {
        if (dropDownShell != null && !dropDownShell.isDisposed()) {
            dropDownShell.dispose();
        }
    });
    shell.open();
    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }
    display.dispose();
}

Example 29 with Transfer

use of org.eclipse.swt.dnd.Transfer in project yamcs-studio by yamcs.

the class CopyCommandHistoryEntryDetailsHandler method execute.

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection sel = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage().getSelection();
    if (sel != null && sel instanceof IStructuredSelection) {
        IStructuredSelection selection = (IStructuredSelection) sel;
        String property = event.getParameter(CommandHistory.CMDPARAM_EVENT_PROPERTY);
        StringBuilder text = new StringBuilder();
        Iterator<?> it = selection.iterator();
        while (it.hasNext()) {
            CommandHistoryRecord rec = (CommandHistoryRecord) it.next();
            switch(property) {
                case PARAM_GENTIME:
                    text.append(rec.getGenerationTime());
                    break;
                case PARAM_COMMAND:
                    text.append(rec.getCommandString());
                    break;
                case PARAM_SOURCE:
                    text.append(rec.getUsername() + "@" + rec.getOrigin());
                    break;
                case PARAM_SEQNO:
                    text.append(rec.getSequenceNumber());
                    break;
                default:
                    throw new IllegalStateException("Unexpected property: " + property);
            }
            if (it.hasNext()) {
                text.append("\n");
            }
        }
        Display display = Display.getCurrent();
        Clipboard clipboard = new Clipboard(display);
        Transfer[] transfers = new Transfer[] { TextTransfer.getInstance() };
        clipboard.setContents(new Object[] { text.toString() }, transfers);
        clipboard.dispose();
    }
    return null;
}

Example 30 with Transfer

use of org.eclipse.swt.dnd.Transfer in project yamcs-studio by yamcs.

the class CopyCommandHistoryEntryHandler method execute.

@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
    ISelection sel = HandlerUtil.getActiveWorkbenchWindow(event).getActivePage().getSelection();
    if (sel != null && sel instanceof IStructuredSelection) {
        IStructuredSelection selection = (IStructuredSelection) sel;
        StringBuilder text = new StringBuilder("T\tCommand\tSource\tSequence Number\n");
        List<CommandHistoryRecord> recList = new ArrayList<>();
        Iterator<?> it = selection.iterator();
        while (it.hasNext()) {
            CommandHistoryRecord rec = (CommandHistoryRecord) it.next();
            recList.add(rec);
            text.append(rec.getGenerationTime()).append("\t").append(rec.getCommandString()).append("\t").append(rec.getUsername() + "@" + rec.getOrigin()).append("\t").append(rec.getSequenceNumber()).append("\n");
        }
        if (!recList.isEmpty()) {
            CommandClipboard.addCommandHistoryRecords(recList);
        }
        Display display = Display.getCurrent();
        Clipboard clipboard = new Clipboard(display);
        Transfer[] transfers = new Transfer[] { TextTransfer.getInstance() };
        clipboard.setContents(new Object[] { text.toString() }, transfers);
        clipboard.dispose();
    }
    return null;
}