# HG changeset patch # User yidabu # Date 1211500402 -28800 # Node ID f5c5b4bf7971add4cfa98ba2beebe1028f4382ea # Parent 961ca8a76cadbd8bc40a6f67fb8ee8c2674205c5 added jface.snippets.Snippet031TableViewerCustomTooltipsMultiSelection diff -r 961ca8a76cad -r f5c5b4bf7971 jface/snippets/Snippet031TableViewerCustomTooltipsMultiSelection.d --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/jface/snippets/Snippet031TableViewerCustomTooltipsMultiSelection.d Fri May 23 07:53:22 2008 +0800 @@ -0,0 +1,313 @@ +module jface.snippets.Snippet031TableViewerCustomTooltipsMultiSelection; + +/******************************************************************************* + * Copyright (c) 2007 Adam Neal 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: + * Adam Neal - initial API and implementation + * Port to the D programming language: + * yidabu at gmail dot com ( D China http://www.d-programming-language-china.org/ ) + *******************************************************************************/ + + +// http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.jface.snippets/Eclipse%20JFace%20Snippets/org/eclipse/jface/snippets/viewers/Snippet031TableViewerCustomTooltipsMultiSelection.java?view=markup + +import tango.util.collection.ArrayBag; +alias ArrayBag!(MyModel) ArrayList; +import tango.util.Convert; + +import dwtx.jface.viewers.ArrayContentProvider; +import dwtx.jface.viewers.ILabelProviderListener; +import dwtx.jface.viewers.ITableLabelProvider; +import dwtx.jface.viewers.TableViewer; +import dwt.DWT; +import dwt.graphics.Image; +import dwt.graphics.Point; +import dwt.graphics.Rectangle; +import dwt.layout.FillLayout; +import dwt.widgets.Display; +import dwt.widgets.Event; +import dwt.widgets.Label; +import dwt.widgets.Listener; +import dwt.widgets.Shell; +import dwt.widgets.Table; +import dwt.widgets.TableColumn; +import dwt.widgets.TableItem; +import dwt.dwthelper.System; +import dwt.widgets.Listener; + +alias char[] String; +void main(String[] args) +{ + Snippet031TableViewerCustomTooltipsMultiSelection.main(args); +} + +/** + * A simple TableViewer to demonstrate how custom tooltips could be created easily while preserving + * the multiple selection. + * + * This is a modified example taken from Tom Schindl's Snippet023TreeViewerCustomTooltips.java + * + * This code is for users pre 3.3 others could use newly added tooltip support in {@link CellLabelProvider} + + * @author Adam Neal + * + */ +public class Snippet031TableViewerCustomTooltipsMultiSelection { + public class MyLableProvider : ITableLabelProvider { + + public Image getColumnImage(Object element, int columnIndex) { + return null; + } + + public String getColumnText(Object element, int columnIndex) { + //if (element instanceof MyModel) { + switch (columnIndex) { + case 0: return (cast(MyModel)element).col1; + case 1: return (cast(MyModel)element).col2; + } + //} + + return ""; + } + + public void addListener(ILabelProviderListener listener) { + /* Ignore */ + } + + public void dispose() { + /* Ignore */ + } + + public bool isLabelProperty(Object element, String property) { + return false; + } + + public void removeListener(ILabelProviderListener listener) { + /* Ignore */ + } + + } + + + + public this(Shell shell) { + + + final Table table = new Table(shell, DWT.H_SCROLL | DWT.V_SCROLL | DWT.MULTI | DWT.FULL_SELECTION); + table.setHeaderVisible(true); + table.setLinesVisible(true); + + final TableViewer v = new TableViewer(table); + TableColumn tableColumn1 = new TableColumn(table, DWT.NONE); + TableColumn tableColumn2 = new TableColumn(table, DWT.NONE); + + String column1 = "Column 1", column2 = "Column 2"; + /* Setup the table columns */ + tableColumn1.setText(column1); + tableColumn2.setText(column2); + tableColumn1.pack(); + tableColumn2.pack(); + + v.setColumnProperties([ column1, column2 ]); + v.setLabelProvider(new MyLableProvider()); + v.setContentProvider(new ArrayContentProvider!(MyModel)); + v.setInput(createModel()); + + tooltipLabelListener = new TooltipLabelListener(); + + /** + * The listener that gets added to the table. This listener is responsible for creating the tooltips + * when hovering over a cell item. This listener will listen for the following events: + *
  • DWT.KeyDown - to remove the tooltip
    • + *
  • DWT.Dispose - to remove the tooltip
    • + *
  • DWT.MouseMove - to remove the tooltip
    • + *
  • DWT.MouseHover - to set the tooltip
    • + */ + + Listener tableListener = dgListener(&handleTableListener, table); + + table.addListener (DWT.Dispose, tableListener); + table.addListener (DWT.KeyDown, tableListener); + table.addListener (DWT.MouseMove, tableListener); + table.addListener (DWT.MouseHover, tableListener); + } + + void handleTableListener(Event event, Table table) + { + Shell tooltip = null; + Label label = null; + + /* + * (non-Javadoc) + * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event) + */ + switch (event.type) { + case DWT.KeyDown: + case DWT.Dispose: + case DWT.MouseMove: { + if (tooltip is null) break; + tooltip.dispose (); + tooltip = null; + label = null; + break; + } + case DWT.MouseHover: { + Point coords = new Point(event.x, event.y); + TableItem item = table.getItem(coords); + if (item !is null) { + int columnCount = table.getColumnCount(); + for (int columnIndex = 0; columnIndex < columnCount; columnIndex++) { + if (item.getBounds(columnIndex).contains(coords)) { + /* Dispose of the old tooltip (if one exists */ + if (tooltip !is null && !tooltip.isDisposed ()) tooltip.dispose (); + + /* Create a new Tooltip */ + tooltip = new Shell (table.getShell(), DWT.ON_TOP | DWT.NO_FOCUS | DWT.TOOL); + tooltip.setBackground (table.getDisplay().getSystemColor (DWT.COLOR_INFO_BACKGROUND)); + FillLayout layout = new FillLayout (); + layout.marginWidth = 2; + tooltip.setLayout (layout); + label = new Label (tooltip, DWT.NONE); + label.setForeground (table.getDisplay().getSystemColor (DWT.COLOR_INFO_FOREGROUND)); + label.setBackground (table.getDisplay().getSystemColor (DWT.COLOR_INFO_BACKGROUND)); + + /* Store the TableItem with the label so we can pass the mouse event later */ + label.setData ("_TableItem_", item); + + /* Set the tooltip text */ + label.setText("Tooltip: " ~ to!(char[])(item.getData()) ~ " : " ~ to!(char[])(columnIndex)); + + /* Setup Listeners to remove the tooltip and transfer the received mouse events */ + label.addListener (DWT.MouseExit, tooltipLabelListener); + label.addListener (DWT.MouseDown, tooltipLabelListener); + + /* Set the size and position of the tooltip */ + Point size = tooltip.computeSize (DWT.DEFAULT, DWT.DEFAULT); + Rectangle rect = item.getBounds (columnIndex); + Point pt = table.toDisplay (rect.x, rect.y); + tooltip.setBounds (pt.x, pt.y, size.x, size.y); + + /* Show it */ + tooltip.setVisible (true); + break; + } + } + } + } + } + + } + + /** + * This listener is added to the tooltip so that it can either dispose itself if the mouse + * exits the tooltip or so it can pass the selection event through to the table. + */ + final TooltipLabelListener tooltipLabelListener; + final class TooltipLabelListener : Listener { + private bool isCTRLDown(Event e) { + return (e.stateMask & DWT.CTRL) != 0; + } + /* + * (non-Javadoc) + * @see dwt.widgets.Listener#handleEvent(dwt.widgets.Event) + */ + public void handleEvent (Event event) { + Label label = cast(Label)event.widget; + Shell shell = label.getShell (); + switch (event.type) { + case DWT.MouseDown: /* Handle a user Click */ + /* Extract our Data */ + Event e = new Event (); + e.item = cast(TableItem) label.getData ("_TableItem_"); + Table table = (cast(TableItem) e.item).getParent(); + + /* Construct the new Selection[] to show */ + TableItem [] newSelection = null; + if (isCTRLDown(event)) { + /* We have 2 scenario's. + * 1) We are selecting an already selected element - so remove it from the selected indices + * 2) We are selecting a non-selected element - so add it to the selected indices + */ + TableItem[] sel = table.getSelection(); + for (int i = 0; i < sel.length; ++i) { + //if (e.item.equals(sel[i])) { + if (e.item is sel[i]) { + // We are de-selecting this element + newSelection = new TableItem[sel.length - 1]; + System.arraycopy(sel, 0, newSelection, 0, i); + System.arraycopy(sel, i+1, newSelection, i, sel.length - i - 1); + break; + } + } + + /* + * If we haven't created the newSelection[] yet, than we are adding the newly selected element + * into the list of selected indicies + */ + if (newSelection is null) { + newSelection = new TableItem[sel.length + 1]; + System.arraycopy(sel, 0, newSelection, 0, sel.length); + newSelection[sel.length] = cast(TableItem) e.item; + } + + } else { + /* CTRL is not down, so we simply select the single element */ + newSelection = [ cast(TableItem) e.item ]; + } + /* Set the new selection of the table and notify the listeners */ + table.setSelection (newSelection); + table.notifyListeners (DWT.Selection, e); + + /* Remove the Tooltip */ + shell.dispose (); + table.setFocus(); + break; + case DWT.MouseExit: + shell.dispose (); + break; + } + }} + + + private ArrayList createModel() { + ArrayList list = new ArrayList; + list.add(new MyModel("A", "B")); + list.add(new MyModel("C", "D")); + list.add(new MyModel("E", "F")); + return list; + } + + public static void main(String[] args) { + Display display = new Display(); + Shell shell = new Shell(display); + shell.setLayout(new FillLayout()); + new Snippet031TableViewerCustomTooltipsMultiSelection(shell); + shell.open(); + + while (!shell.isDisposed()) { + if (!display.readAndDispatch()) + display.sleep(); + } + + display.dispose(); + } +} + + public class MyModel { + public String col1, col2; + + public this(String c1, String c2) { + col1 = c1; + col2 = c2; + } + + public String toString() { + return col1 ~ col2; + } + + }