Mercurial > projects > dwt-samples
view jface/snippets/Snippet031TableViewerCustomTooltipsMultiSelection.d @ 93:bf8adb3de664
Fix tabs vs. spaces and added snippet to dsss.conf
author | Frank Benoit <benoit@tionex.de> |
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date | Fri, 23 May 2008 02:50:33 +0200 |
parents | f5c5b4bf7971 |
children | 42c3056512ba |
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/******************************************************************************* * 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/ ) *******************************************************************************/ module jface.snippets.Snippet031TableViewerCustomTooltipsMultiSelection; // 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 <Adam_Neal@ca.ibm.com> * */ 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: * <li>DWT.KeyDown - to remove the tooltip</li> * <li>DWT.Dispose - to remove the tooltip</li> * <li>DWT.MouseMove - to remove the tooltip</li> * <li>DWT.MouseHover - to set the tooltip</li> */ 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; } }