| /******************************************************************************* |
| * Copyright (c) 2000, 2003 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.layoutexample; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.custom.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.layout.*; |
| import org.eclipse.swt.widgets.*; |
| |
| class FillLayoutTab extends Tab { |
| /* Controls for setting layout parameters */ |
| Button horizontal, vertical; |
| /* The example layout instance */ |
| FillLayout fillLayout; |
| /* TableEditors and related controls*/ |
| TableEditor comboEditor; |
| CCombo combo; |
| |
| /** |
| * Creates the Tab within a given instance of LayoutExample. |
| */ |
| FillLayoutTab(LayoutExample instance) { |
| super(instance); |
| } |
| |
| /** |
| * Creates the widgets in the "child" group. |
| */ |
| void createChildWidgets () { |
| /* Add common controls */ |
| super.createChildWidgets (); |
| |
| /* Add TableEditors */ |
| comboEditor = new TableEditor (table); |
| table.addSelectionListener (new SelectionAdapter() { |
| public void widgetSelected(SelectionEvent e) { |
| resetEditors (); |
| index = table.getSelectionIndex (); |
| if (index == -1) return; |
| TableItem oldItem = comboEditor.getItem (); |
| newItem = table.getItem (index); |
| if (newItem == oldItem || newItem != lastSelected) { |
| lastSelected = newItem; |
| return; |
| } |
| table.showSelection (); |
| |
| combo = new CCombo (table, SWT.READ_ONLY); |
| createComboEditor (combo, comboEditor); |
| } |
| }); |
| |
| |
| /* Add listener to add an element to the table */ |
| add.addSelectionListener(new SelectionAdapter () { |
| public void widgetSelected(SelectionEvent e) { |
| TableItem item = new TableItem (table, 0); |
| item.setText (0, String.valueOf (table.indexOf (item))); |
| item.setText (1, "Button"); |
| data.addElement ("Button"); |
| resetEditors (); |
| } |
| }); |
| } |
| |
| /** |
| * Creates the control widgets. |
| */ |
| void createControlWidgets () { |
| /* Controls the type of FillLayout */ |
| Group typeGroup = new Group (controlGroup, SWT.NONE); |
| typeGroup.setText (LayoutExample.getResourceString ("Type")); |
| typeGroup.setLayout (new GridLayout ()); |
| typeGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL)); |
| horizontal = new Button (typeGroup, SWT.RADIO); |
| horizontal.setText ("SWT.HORIZONTAL"); |
| horizontal.setLayoutData(new GridData (GridData.FILL_HORIZONTAL)); |
| horizontal.setSelection(true); |
| horizontal.addSelectionListener (selectionListener); |
| vertical = new Button (typeGroup, SWT.RADIO); |
| vertical.setText ("SWT.VERTICAL"); |
| vertical.setLayoutData(new GridData (GridData.FILL_HORIZONTAL)); |
| vertical.addSelectionListener (selectionListener); |
| |
| /* Add common controls */ |
| super.createControlWidgets (); |
| |
| /* Position the sash */ |
| sash.setWeights (new int [] {4,1}); |
| } |
| |
| /** |
| * Creates the example layout. |
| */ |
| void createLayout () { |
| fillLayout = new FillLayout (); |
| layoutComposite.setLayout (fillLayout); |
| } |
| |
| /** |
| * Disposes the editors without placing their contents |
| * into the table. |
| */ |
| void disposeEditors () { |
| comboEditor.setEditor (null, null, -1); |
| combo.dispose (); |
| } |
| |
| |
| /** |
| * Generates code for the example layout. |
| */ |
| StringBuffer generateLayoutCode () { |
| StringBuffer code = new StringBuffer (); |
| code.append ("\t\tFillLayout fillLayout = new FillLayout ();\n"); |
| if (fillLayout.type == SWT.VERTICAL) { |
| code.append ("\t\tfillLayout.type = SWT.VERTICAL;\n"); |
| } |
| code.append ("\t\tshell.setLayout (fillLayout);\n"); |
| for (int i = 0; i < children.length; i++) { |
| Control control = children [i]; |
| code.append (getChildCode (control, i)); |
| } |
| return code; |
| } |
| |
| /** |
| * Returns the layout data field names. |
| */ |
| String [] getLayoutDataFieldNames() { |
| return new String [] {"","Control"}; |
| } |
| |
| /** |
| * Gets the text for the tab folder item. |
| */ |
| String getTabText () { |
| return "FillLayout"; |
| } |
| |
| /** |
| * Takes information from TableEditors and stores it. |
| */ |
| void resetEditors () { |
| TableItem oldItem = comboEditor.getItem (); |
| comboEditor.setEditor (null, null, -1); |
| if (oldItem != null) { |
| int row = table.indexOf (oldItem); |
| data.insertElementAt (combo.getText (), row); |
| oldItem.setText (1, data.elementAt (row).toString ()); |
| combo.dispose (); |
| } |
| setLayoutState (); |
| refreshLayoutComposite (); |
| layoutComposite.layout (true); |
| layoutGroup.layout (true); |
| } |
| |
| /** |
| * Sets the state of the layout. |
| */ |
| void setLayoutState () { |
| if (vertical.getSelection()) { |
| fillLayout.type = SWT.VERTICAL; |
| } else { |
| fillLayout.type = SWT.HORIZONTAL; |
| } |
| } |
| } |