build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/properties/BuildPropertyPage.java - cdt/org.eclipse.cdt - Git at Google

 package org.eclipse.cdt.managedbuilder.ui.properties;

 /**********************************************************************
  * Copyright (c) 2002,2003 Rational Software Corporation and others.
  * All rights reserved.   This program and the accompanying materials
  * are made available under the terms of the Common Public License v0.5
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v05.html
  *
  * Contributors:
  * IBM Rational Software - Initial API and implementation
  * **********************************************************************/

 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
 import java.util.ListIterator;
 import java.util.Map;
 import java.util.Random;
 import java.util.Set;
 import java.util.SortedMap;

 import org.eclipse.cdt.managedbuilder.core.IConfiguration;
 import org.eclipse.cdt.managedbuilder.core.IManagedBuildInfo;
 import org.eclipse.cdt.managedbuilder.core.IOption;
 import org.eclipse.cdt.managedbuilder.core.IOptionCategory;
 import org.eclipse.cdt.managedbuilder.core.ITarget;
 import org.eclipse.cdt.managedbuilder.core.ITool;
 import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
 import org.eclipse.cdt.managedbuilder.internal.ui.ManagedBuilderUIPlugin;
 import org.eclipse.cdt.utils.ui.controls.ControlFactory;
 import org.eclipse.core.resources.IProject;
 import org.eclipse.jface.preference.IPreferencePageContainer;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.SashForm;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.events.SelectionAdapter;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.layout.FormAttachment;
 import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.FormLayout;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Combo;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Group;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Layout;
 import org.eclipse.swt.widgets.Listener;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.ui.IWorkbenchPropertyPage;
 import org.eclipse.ui.dialogs.PropertyPage;

 public class BuildPropertyPage extends PropertyPage implements IWorkbenchPropertyPage, IPreferencePageContainer {
 	/*
 	 * String constants
 	 */
 	private static final String PREFIX = "BuildPropertyPage";	//$NON-NLS-1$
 	private static final String LABEL = PREFIX + ".label";	//$NON-NLS-1$
 	private static final String NAME_LABEL = LABEL + ".NameText";	//$NON-NLS-1$
 	private static final String BUILD_TOOLS_LABEL = LABEL + ".BuildToolTree";	//$NON-NLS-1$
 	private static final String PLATFORM_LABEL = LABEL + ".Platform";	//$NON-NLS-1$
 	private static final String CONFIG_LABEL = LABEL + ".Configuration";	//$NON-NLS-1$
 	private static final String ACTIVE_LABEL = LABEL + ".Active";	//$NON-NLS-1$
 	private static final String SETTINGS_LABEL = LABEL + ".Settings";	//$NON-NLS-1$
 	private static final String TREE_LABEL = LABEL + ".ToolTree";	//$NON-NLS-1$
 	private static final String OPTIONS_LABEL = LABEL + ".ToolOptions";	//$NON-NLS-1$
 	private static final String ADD_CONF = LABEL + ".AddConfButton";	//$NON-NLS-1$
 	private static final String TIP = PREFIX + ".tip";	//$NON-NLS-1$
 	private static final String PLAT_TIP = TIP + ".platform";	//$NON-NLS-1$
 	private static final String CONF_TIP = TIP + ".config";	//$NON-NLS-1$
 	private static final String ADD_TIP = TIP + ".addconf";	//$NON-NLS-1$
 	private static final String MANAGE_TITLE = PREFIX + ".manage.title";	//$NON-NLS-1$
 	private static final int[] DEFAULT_SASH_WEIGHTS = new int[] { 20, 30 };

 	/*
 	 * Dialog widgets
 	 */
 	private Combo targetSelector;
 	private Combo configSelector;
 	private Button manageConfigs;
 	private TreeViewer optionList;
 	private SashForm sashForm;
 	private Group sashGroup;
 	private Composite settingsPageContainer;
 	private ScrolledComposite containerSC;

 	/*
 	 * Bookeeping variables
 	 */
 	private ITarget [] targets;
 	private ITarget selectedTarget;
 	private IConfiguration [] configurations;
 	private IConfiguration selectedConfiguration;
 	private BuildToolSettingsPage currentSettingsPage;
 	private Map configToPageListMap;
 	private BuildToolsSettingsStore settingsStore;
 	private IOptionCategory selectedCategory;
 	private Point lastShellSize;

 	/**
 	 * The minimum page size; 200 by 200 by default.
 	 *
 	 * @see #setMinimumPageSize
 	 */
 	private Point minimumPageSize = new Point(200, 200);

 	/**
 	 * Layout for the page container.
 	 *
 	 */
 	private class PageLayout extends Layout {
 		public void layout(Composite composite, boolean force) {
 			Rectangle rect = composite.getClientArea();
 			Control[] children = composite.getChildren();
 			for (int i = 0; i < children.length; i++) {
 				children[i].setSize(rect.width, rect.height);
 			}
 		}
 		public Point computeSize(Composite composite, int wHint, int hHint,	boolean force) {
 			if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT) {
 				return new Point(wHint, hHint);
 			}
 			int x = minimumPageSize.x;
 			int y = minimumPageSize.y;

 			Control[] children = composite.getChildren();
 			for (int i = 0; i < children.length; i++) {
 				Point size = children[i].computeSize(SWT.DEFAULT, SWT.DEFAULT, force);
 				x = Math.max(x, size.x);
 				y = Math.max(y, size.y);
 			}
 			if (wHint != SWT.DEFAULT) {
 				x = wHint;
 			}
 			if (hHint != SWT.DEFAULT) {
 				y = hHint;
 			}
 			return new Point(x, y);
 		}
 	}

 	/**
 	 * Default constructor
 	 */
 	public BuildPropertyPage() {
 		configToPageListMap = new HashMap();
 	}

 	protected Control createContents(Composite parent)  {
 		// Initialize the key data
 		targets = ManagedBuildManager.getTargets(getProject());

 		// Create the container we return to the property page editor
 		Composite composite = ControlFactory.createComposite(parent, 1);
 		GridData gd;

 		// Add a config selection area
 		Group configGroup = ControlFactory.createGroup(composite, ManagedBuilderUIPlugin.getResourceString(ACTIVE_LABEL), 1);
 		gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
 		gd.grabExcessHorizontalSpace = true;
 		configGroup.setLayoutData(gd);
 		// Use the form layout inside the group composite
 		FormLayout form = new FormLayout();
 		form.marginHeight = 5;
 		form.marginWidth = 5;
 		configGroup.setLayout(form);

 		Label platformLabel = ControlFactory.createLabel(configGroup, ManagedBuilderUIPlugin.getResourceString(PLATFORM_LABEL));
 		targetSelector = ControlFactory.createSelectCombo(configGroup, getPlatformNames(), null);
 		targetSelector.addListener(SWT.Selection, new Listener () {
 			public void handleEvent(Event e) {
 				handleTargetSelection();
 			}
 		});
 		targetSelector.setToolTipText(ManagedBuilderUIPlugin.getResourceString(PLAT_TIP));
 		Label configLabel = ControlFactory.createLabel(configGroup, ManagedBuilderUIPlugin.getResourceString(CONFIG_LABEL));
 		configSelector = new Combo(configGroup, SWT.READ_ONLY|SWT.DROP_DOWN);
 		configSelector.addListener(SWT.Selection, new Listener () {
 			public void handleEvent(Event e) {
 				handleConfigSelection();
 			}
 		});
 		configSelector.setToolTipText(ManagedBuilderUIPlugin.getResourceString(CONF_TIP));
 		manageConfigs = ControlFactory.createPushButton(configGroup, ManagedBuilderUIPlugin.getResourceString(ADD_CONF));
 		manageConfigs.setToolTipText(ManagedBuilderUIPlugin.getResourceString(ADD_TIP));
 		manageConfigs.addSelectionListener(new SelectionAdapter() {
 		public void widgetSelected(SelectionEvent e) {
 				handleManageConfig();
 			}
 		});
 		// Now do the form layout for the widgets
 		FormData fd = new FormData();
 		// Anchor the labels in the centre of their respective combos
 		fd.top = new FormAttachment(targetSelector, 0, SWT.CENTER);
 		platformLabel.setLayoutData(fd);
 		fd = new FormData();
 		fd.top = new FormAttachment(configSelector, 0, SWT.CENTER);
 		configLabel.setLayoutData(fd);
 		// Anchor platform combo left to the config selector
 		fd = new FormData();
 		fd.left = new FormAttachment(configSelector, 0, SWT.LEFT);
 		fd.right = new FormAttachment(100, 0);
 		targetSelector.setLayoutData(fd);
 		// Anchor button right to combo and left to group
 		fd = new FormData();
 		fd.top = new FormAttachment(configSelector, 0, SWT.CENTER);
 		fd.right = new FormAttachment(100,0);
 		manageConfigs.setLayoutData(fd);
 		// Anchor config combo left 5 pixels from label, top 5% below the centre, and right to the button
 		fd = new FormData();
 		fd.left = new FormAttachment(configLabel, 5);
 		fd.top = new FormAttachment(55,0);
 		fd.right = new FormAttachment(manageConfigs, -5 , SWT.LEFT);
 		configSelector.setLayoutData(fd);

 		// Create the sash form
 		sashGroup = ControlFactory.createGroup(composite, ManagedBuilderUIPlugin.getResourceString(SETTINGS_LABEL), 1);
 		sashGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
 		sashForm = new SashForm(sashGroup, SWT.NONE);
 		sashForm.setOrientation(SWT.HORIZONTAL);
 		sashForm.setLayoutData(new GridData(GridData.FILL_BOTH));
 		GridLayout layout = new GridLayout();
 		layout.numColumns = 2;
 		layout.marginHeight = 5;
 		layout.marginWidth = 5;
 		sashForm.setLayout(layout);

 		createSelectionArea(sashForm);
 		createEditArea(sashForm);
 		initializeSashForm();

 		// Do not call this until the widgets are constructed
 		handleTargetSelection();
 		return composite;
 	}

 	/* (non-Javadoc)
 	 * Add the tabs relevant to the project to edit area tab folder.
 	 */
 	protected void createEditArea(Composite parent) {
 		containerSC = new ScrolledComposite(parent, SWT.H_SCROLL | SWT.V_SCROLL);
 		containerSC.setExpandHorizontal(true);
 		containerSC.setExpandVertical(true);

 		// Add a container for the build settings page
 		settingsPageContainer = new Composite(containerSC, SWT.NULL);
 		settingsPageContainer.setLayout(new PageLayout());

 		containerSC.setContent(settingsPageContainer);
 		containerSC.setMinSize(settingsPageContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
 		settingsPageContainer.layout();
 	}

 	protected void createSelectionArea (Composite parent) {
 		// Create a label and list viewer
 		Composite composite = ControlFactory.createComposite(parent, 1);
 		optionList = new TreeViewer(composite, SWT.SINGLE|SWT.H_SCROLL|SWT.V_SCROLL|SWT.BORDER);
 		optionList.addSelectionChangedListener(new ISelectionChangedListener() {
 			public void selectionChanged(SelectionChangedEvent event) {
 				handleOptionSelection();
 			}
 		});
 		optionList.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));
 		optionList.setLabelProvider(new ToolListLabelProvider());
 	}

 	/**
 	 * Method displayOptionsForTool.
 	 * @param toolReference
 	 */
 	private void displayOptionsForCategory(IOptionCategory category) {
 		// Do nothing if the selected category is is unchanged
 		if (category == selectedCategory) {
 			return;
 		}
 		selectedCategory = category;

 		// Cache the current build setting page
 		BuildToolSettingsPage oldPage = currentSettingsPage;
 		currentSettingsPage = null;

 		// Create a new settings page if necessary
 		List pages = getPagesForConfig();
 		ListIterator iter = pages.listIterator();
 		while (iter.hasNext()) {
 			BuildToolSettingsPage page = (BuildToolSettingsPage) iter.next();
 			if (page.getCategory().equals(category)) {
 				currentSettingsPage = page;
 				break;
 			}
 		}
 		if (currentSettingsPage == null) {
 			currentSettingsPage = new BuildToolSettingsPage(selectedConfiguration, category);
 			pages.add(currentSettingsPage);
 			currentSettingsPage.setContainer(this);
 			if (currentSettingsPage.getControl() == null) {
 				currentSettingsPage.createControl(settingsPageContainer);
 			}
 		}

 		// Make all the other pages invisible
 		Control[] children = settingsPageContainer.getChildren();
 		Control currentControl = currentSettingsPage.getControl();
 		for (int i = 0; i < children.length; i++) {
 			if (children[i] != currentControl)
 				children[i].setVisible(false);
 		}
 		currentSettingsPage.setVisible(true);
 		if (oldPage != null)
 			oldPage.setVisible(false);

 		// Set the size of the scrolled area
 		containerSC.setMinSize(currentSettingsPage.computeSize());
 		settingsPageContainer.layout();
 	}

 	/* (non-Javadoc)
 	 * @return an array of names for the configurations defined for the chosen target
 	 */
 	private String [] getConfigurationNames () {
 		String [] names = new String[configurations.length];
 		for (int index = 0; index < configurations.length; ++index) {
 			names[index] = configurations[index].getName();
 		}
 		return names;
 	}

 	/**
 	 * @return
 	 */
 	protected Point getLastShellSize() {
 		if (lastShellSize == null) {
 			Shell shell = getShell();
 			if (shell != null)
 				lastShellSize = shell.getSize();
 		}
 		return lastShellSize;
 	}

 	private List getPagesForConfig() {
 		List pages = (List) configToPageListMap.get(selectedConfiguration.getId());
 		if (pages == null) {
 			pages = new ArrayList();
 			configToPageListMap.put(selectedConfiguration.getId(), pages);
 		}
 		return pages;
 	}

 	private String [] getPlatformNames() {
 		String [] names = new String[targets.length];
 		for (int index = 0; index < targets.length; ++index) {
 			names[index] = targets[index].getName();
 		}
 		return names;
 	}

 	/* (non-Javadoc)
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#getPreferenceStore()
 	 */
 	public IPreferenceStore getPreferenceStore()
 	{
 		return settingsStore;
 	}

 	private IProject getProject() {
 		Object element= getElement();
 		if (element != null && element instanceof IProject) {
 			return (IProject)element;
 		}
 		return null;
 	}

 	/**
 	 * @return
 	 */
 	public IConfiguration getSelectedConfiguration() {
 		return selectedConfiguration;
 	}

 	/*
 	 * Event Handlers
 	 */
 	private void handleConfigSelection () {
 		// If there is nothing in config selection widget just bail
 		if (configSelector.getItemCount() == 0) return;

 		// Cache the selected config
 		selectedConfiguration = configurations[configSelector.getSelectionIndex()];

 		// Set the content provider for the list viewer
 		ToolListContentProvider provider = new ToolListContentProvider();
 		optionList.setContentProvider(provider);
 		optionList.setInput(selectedConfiguration);
 		optionList.expandAll();

 		// Recreate the settings store for the configuration
 		settingsStore = new BuildToolsSettingsStore(selectedConfiguration);

 		// Select the first tool or option category in the list that has options
 		Object[] elements = provider.getElements(selectedConfiguration);
 		Object primary = elements.length > 0 ? elements[0] : null;

 		if (primary != null && primary instanceof ITool) {
 			// Check to see if there are any options.
 			ITool tool = (ITool)primary;
 			IOptionCategory top = tool.getTopOptionCategory();
 			IOption[] topOpts = top.getOptions(selectedConfiguration);
 			if (topOpts != null && topOpts.length == 0) {
 				// Get the children categories and start looking
 				IOptionCategory[] children = top.getChildCategories();
 				for (int i = 0; i < children.length; i++) {
 					IOptionCategory category = children[i];
 					IOption[] catOpts = category.getOptions(selectedConfiguration);
 					if (catOpts != null && catOpts.length > 0) {
 						primary = category;
 						break;
 					}
 				}
 			}
 		}

 		if (primary != null) {
 			optionList.setSelection(new StructuredSelection(primary));
 		}
 	}

 	// Event handler for the manage configuration button event
 	private void handleManageConfig () {
 		ManageConfigDialog manageDialog = new ManageConfigDialog(getShell(), ManagedBuilderUIPlugin.getResourceString(MANAGE_TITLE), selectedTarget);
 		if (manageDialog.open() == ManageConfigDialog.OK) {
 			boolean updateConfigs = false;

 			// Get the build output name
 			String newBuildOutput = manageDialog.getBuildArtifactName();
 			if (!selectedTarget.getArtifactName().equals(newBuildOutput)) {
 				selectedTarget.setBuildArtifact(newBuildOutput);
 			}

 			// Get the new make command
 			if (manageDialog.useDefaultMakeCommand()) {
 				// This is a cheap assignment to null so do it to be doubly sure
 				selectedTarget.resetMakeCommand();
 			} else {
 				String makeCommand = manageDialog.getMakeCommand();
 				selectedTarget.setMakeCommand(makeCommand);
 			}

 			// Check to see if any configurations have to be deleted
 			List deletedConfigs = manageDialog.getDeletedConfigIds();
 			Iterator iter = deletedConfigs.listIterator();
 			while (iter.hasNext()) {
 				String id = (String)iter.next();

 				// Remove the configurations from the target
 				selectedTarget.removeConfiguration(id);

 				// Clean up the UI
 				configurations = selectedTarget.getConfigurations();
 				configSelector.removeAll();
 				configSelector.setItems(getConfigurationNames());
 				configSelector.select(0);
 				updateConfigs = true;
 			}

 			// Check to see if any have to be added
 			SortedMap newConfigs = manageDialog.getNewConfigs();
 			Set keys = newConfigs.keySet();
 			Iterator keyIter = keys.iterator();
 			Random r = new Random();
 			r.setSeed(System.currentTimeMillis());
 			while (keyIter.hasNext()) {
 				String name = (String) keyIter.next();
 				IConfiguration parent = (IConfiguration) newConfigs.get(name);
 				if (parent != null) {
 					int id = r.nextInt();
 					if (id < 0) {
 						id *= -1;
 					}
 					String newId = parent.getId() + "." + id;
 					IConfiguration newConfig = selectedTarget.createConfiguration(parent, newId);
 					newConfig.setName(name);
 					// Update the config lists
 					configurations = selectedTarget.getConfigurations();
 					configSelector.removeAll();
 					configSelector.setItems(getConfigurationNames());
 					configSelector.select(configSelector.indexOf(name));
 					updateConfigs = true;
 				}
 			}
 			if (updateConfigs){
 				handleConfigSelection();
 			}
 		}
 		return;
 	}

 	private void handleOptionSelection() {
 		// Get the selection from the tree list
 		IStructuredSelection selection = (IStructuredSelection) optionList.getSelection();

 		// Set the option page based on the selection
 		Object element = selection.getFirstElement();
 		if (element instanceof IOptionCategory) {
 			displayOptionsForCategory((IOptionCategory)element);
 		}
 	}

 	private void handleTargetSelection() {
 		// Is there anything in the selector widget
 		if (targetSelector.getItemCount() == 0) {
 			manageConfigs.setEnabled(false);
 			return;
 		}

 		// Enable the manage button
 		manageConfigs.setEnabled(true);

 		// Cache the platform at the selection index
 		selectedTarget = targets[targetSelector.getSelectionIndex()];

 		// Update the contents of the configuration widget
 		populateConfigurations();
 	}

 	/*
 	 *  (non-javadoc)
 	 * Initialize the relative weights (widths) of the 2 sides of the sash.
 	 */
 	protected void initializeSashForm() {
 		sashForm.setWeights(DEFAULT_SASH_WEIGHTS);
 	}

 	/*
 	 *  (non-Javadoc)
 	 * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
 	 */
 	protected void performDefaults() {
 		// Empty the page list
 		List pages = getPagesForConfig();
 		pages.clear();

 		// Get the build manager to reset build info for project
 		ManagedBuildManager.resetConfiguration(getProject(), getSelectedConfiguration());

 		// Recreate the settings store for the configuration
 		settingsStore = new BuildToolsSettingsStore(getSelectedConfiguration());

 		// Reset the category selection and run selection event handler
 		selectedCategory = null;
 		handleOptionSelection();
 	}

 	/*
 	 *  (non-Javadoc)
 	 * @see org.eclipse.jface.preference.IPreferencePage#performOk()
 	 */
 	public boolean performOk() {
 		// Force each settings page to update
 		List pages = getPagesForConfig();
 		ListIterator iter = pages.listIterator();
 		while (iter.hasNext()) {
 			BuildToolSettingsPage page = (BuildToolSettingsPage) iter.next();
 			page.performOk();
 		}

 		// Write out the build model info
 		ManagedBuildManager.setDefaultConfiguration(getProject(), getSelectedConfiguration());
 		ManagedBuildManager.saveBuildInfo(getProject());
 		return true;
 	}

 	private void populateConfigurations() {
 		// If the config select widget is not there yet, just stop
 		if (configSelector == null) return;

 		// Find the configurations defined for the platform
 		configurations = selectedTarget.getConfigurations();

 		// Clear and replace the contents of the selector widget
 		configSelector.removeAll();
 		configSelector.setItems(getConfigurationNames());

 		// Make sure the active configuration is selected
 		IManagedBuildInfo info = ManagedBuildManager.getBuildInfo(getProject());
 		IConfiguration defaultConfig = info.getDefaultConfiguration(selectedTarget);
 		int index = configSelector.indexOf(defaultConfig.getName());
 		configSelector.select(index == -1 ? 0 : index);
 		handleConfigSelection();
 	}

 	/**
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateButtons()
 	 */
 	public void updateButtons() {
 	}
 	/**
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateMessage()
 	 */
 	public void updateMessage() {
 	}
 	/**
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateTitle()
 	 */
 	public void updateTitle() {
 	}
 }
	package org.eclipse.cdt.managedbuilder.ui.properties;

	/**********************************************************************
	* Copyright (c) 2002,2003 Rational Software Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v0.5
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v05.html
	*
	* Contributors:
	* IBM Rational Software - Initial API and implementation
	* **********************************************************************/

	import java.util.ArrayList;
	import java.util.HashMap;
	import java.util.Iterator;
	import java.util.List;
	import java.util.ListIterator;
	import java.util.Map;
	import java.util.Random;
	import java.util.Set;
	import java.util.SortedMap;

	import org.eclipse.cdt.managedbuilder.core.IConfiguration;
	import org.eclipse.cdt.managedbuilder.core.IManagedBuildInfo;
	import org.eclipse.cdt.managedbuilder.core.IOption;
	import org.eclipse.cdt.managedbuilder.core.IOptionCategory;
	import org.eclipse.cdt.managedbuilder.core.ITarget;
	import org.eclipse.cdt.managedbuilder.core.ITool;
	import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
	import org.eclipse.cdt.managedbuilder.internal.ui.ManagedBuilderUIPlugin;
	import org.eclipse.cdt.utils.ui.controls.ControlFactory;
	import org.eclipse.core.resources.IProject;
	import org.eclipse.jface.preference.IPreferencePageContainer;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.viewers.ISelectionChangedListener;
	import org.eclipse.jface.viewers.IStructuredSelection;
	import org.eclipse.jface.viewers.SelectionChangedEvent;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.SashForm;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.events.SelectionAdapter;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.graphics.Rectangle;
	import org.eclipse.swt.layout.FormAttachment;
	import org.eclipse.swt.layout.FormData;
	import org.eclipse.swt.layout.FormLayout;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Combo;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Group;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Layout;
	import org.eclipse.swt.widgets.Listener;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.ui.IWorkbenchPropertyPage;
	import org.eclipse.ui.dialogs.PropertyPage;

	public class BuildPropertyPage extends PropertyPage implements IWorkbenchPropertyPage, IPreferencePageContainer {
	/*
	* String constants
	*/
	private static final String PREFIX = "BuildPropertyPage"; //$NON-NLS-1$
	private static final String LABEL = PREFIX + ".label"; //$NON-NLS-1$
	private static final String NAME_LABEL = LABEL + ".NameText"; //$NON-NLS-1$
	private static final String BUILD_TOOLS_LABEL = LABEL + ".BuildToolTree"; //$NON-NLS-1$
	private static final String PLATFORM_LABEL = LABEL + ".Platform"; //$NON-NLS-1$
	private static final String CONFIG_LABEL = LABEL + ".Configuration"; //$NON-NLS-1$
	private static final String ACTIVE_LABEL = LABEL + ".Active"; //$NON-NLS-1$
	private static final String SETTINGS_LABEL = LABEL + ".Settings"; //$NON-NLS-1$
	private static final String TREE_LABEL = LABEL + ".ToolTree"; //$NON-NLS-1$
	private static final String OPTIONS_LABEL = LABEL + ".ToolOptions"; //$NON-NLS-1$
	private static final String ADD_CONF = LABEL + ".AddConfButton"; //$NON-NLS-1$
	private static final String TIP = PREFIX + ".tip"; //$NON-NLS-1$
	private static final String PLAT_TIP = TIP + ".platform"; //$NON-NLS-1$
	private static final String CONF_TIP = TIP + ".config"; //$NON-NLS-1$
	private static final String ADD_TIP = TIP + ".addconf"; //$NON-NLS-1$
	private static final String MANAGE_TITLE = PREFIX + ".manage.title"; //$NON-NLS-1$
	private static final int[] DEFAULT_SASH_WEIGHTS = new int[] { 20, 30 };

	/*
	* Dialog widgets
	*/
	private Combo targetSelector;
	private Combo configSelector;
	private Button manageConfigs;
	private TreeViewer optionList;
	private SashForm sashForm;
	private Group sashGroup;
	private Composite settingsPageContainer;
	private ScrolledComposite containerSC;

	/*
	* Bookeeping variables
	*/
	private ITarget [] targets;
	private ITarget selectedTarget;
	private IConfiguration [] configurations;
	private IConfiguration selectedConfiguration;
	private BuildToolSettingsPage currentSettingsPage;
	private Map configToPageListMap;
	private BuildToolsSettingsStore settingsStore;
	private IOptionCategory selectedCategory;
	private Point lastShellSize;

	/**
	* The minimum page size; 200 by 200 by default.
	*
	* @see #setMinimumPageSize
	*/
	private Point minimumPageSize = new Point(200, 200);

	/**
	* Layout for the page container.
	*
	*/
	private class PageLayout extends Layout {
	public void layout(Composite composite, boolean force) {
	Rectangle rect = composite.getClientArea();
	Control[] children = composite.getChildren();
	for (int i = 0; i < children.length; i++) {
	children[i].setSize(rect.width, rect.height);
	}
	}
	public Point computeSize(Composite composite, int wHint, int hHint, boolean force) {
	if (wHint != SWT.DEFAULT && hHint != SWT.DEFAULT) {
	return new Point(wHint, hHint);
	}
	int x = minimumPageSize.x;
	int y = minimumPageSize.y;

	Control[] children = composite.getChildren();
	for (int i = 0; i < children.length; i++) {
	Point size = children[i].computeSize(SWT.DEFAULT, SWT.DEFAULT, force);
	x = Math.max(x, size.x);
	y = Math.max(y, size.y);
	}
	if (wHint != SWT.DEFAULT) {
	x = wHint;
	}
	if (hHint != SWT.DEFAULT) {
	y = hHint;
	}
	return new Point(x, y);
	}
	}

	/**
	* Default constructor
	*/
	public BuildPropertyPage() {
	configToPageListMap = new HashMap();
	}

	protected Control createContents(Composite parent) {
	// Initialize the key data
	targets = ManagedBuildManager.getTargets(getProject());

	// Create the container we return to the property page editor
	Composite composite = ControlFactory.createComposite(parent, 1);
	GridData gd;

	// Add a config selection area
	Group configGroup = ControlFactory.createGroup(composite, ManagedBuilderUIPlugin.getResourceString(ACTIVE_LABEL), 1);
	gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
	gd.grabExcessHorizontalSpace = true;
	configGroup.setLayoutData(gd);
	// Use the form layout inside the group composite
	FormLayout form = new FormLayout();
	form.marginHeight = 5;
	form.marginWidth = 5;
	configGroup.setLayout(form);

	Label platformLabel = ControlFactory.createLabel(configGroup, ManagedBuilderUIPlugin.getResourceString(PLATFORM_LABEL));
	targetSelector = ControlFactory.createSelectCombo(configGroup, getPlatformNames(), null);
	targetSelector.addListener(SWT.Selection, new Listener () {
	public void handleEvent(Event e) {
	handleTargetSelection();
	}
	});
	targetSelector.setToolTipText(ManagedBuilderUIPlugin.getResourceString(PLAT_TIP));
	Label configLabel = ControlFactory.createLabel(configGroup, ManagedBuilderUIPlugin.getResourceString(CONFIG_LABEL));
	configSelector = new Combo(configGroup, SWT.READ_ONLY\|SWT.DROP_DOWN);
	configSelector.addListener(SWT.Selection, new Listener () {
	public void handleEvent(Event e) {
	handleConfigSelection();
	}
	});
	configSelector.setToolTipText(ManagedBuilderUIPlugin.getResourceString(CONF_TIP));
	manageConfigs = ControlFactory.createPushButton(configGroup, ManagedBuilderUIPlugin.getResourceString(ADD_CONF));
	manageConfigs.setToolTipText(ManagedBuilderUIPlugin.getResourceString(ADD_TIP));
	manageConfigs.addSelectionListener(new SelectionAdapter() {
	public void widgetSelected(SelectionEvent e) {
	handleManageConfig();
	}
	});
	// Now do the form layout for the widgets
	FormData fd = new FormData();
	// Anchor the labels in the centre of their respective combos
	fd.top = new FormAttachment(targetSelector, 0, SWT.CENTER);
	platformLabel.setLayoutData(fd);
	fd = new FormData();
	fd.top = new FormAttachment(configSelector, 0, SWT.CENTER);
	configLabel.setLayoutData(fd);
	// Anchor platform combo left to the config selector
	fd = new FormData();
	fd.left = new FormAttachment(configSelector, 0, SWT.LEFT);
	fd.right = new FormAttachment(100, 0);
	targetSelector.setLayoutData(fd);
	// Anchor button right to combo and left to group
	fd = new FormData();
	fd.top = new FormAttachment(configSelector, 0, SWT.CENTER);
	fd.right = new FormAttachment(100,0);
	manageConfigs.setLayoutData(fd);
	// Anchor config combo left 5 pixels from label, top 5% below the centre, and right to the button
	fd = new FormData();
	fd.left = new FormAttachment(configLabel, 5);
	fd.top = new FormAttachment(55,0);
	fd.right = new FormAttachment(manageConfigs, -5 , SWT.LEFT);
	configSelector.setLayoutData(fd);

	// Create the sash form
	sashGroup = ControlFactory.createGroup(composite, ManagedBuilderUIPlugin.getResourceString(SETTINGS_LABEL), 1);
	sashGroup.setLayoutData(new GridData(GridData.FILL_BOTH));
	sashForm = new SashForm(sashGroup, SWT.NONE);
	sashForm.setOrientation(SWT.HORIZONTAL);
	sashForm.setLayoutData(new GridData(GridData.FILL_BOTH));
	GridLayout layout = new GridLayout();
	layout.numColumns = 2;
	layout.marginHeight = 5;
	layout.marginWidth = 5;
	sashForm.setLayout(layout);

	createSelectionArea(sashForm);
	createEditArea(sashForm);
	initializeSashForm();

	// Do not call this until the widgets are constructed
	handleTargetSelection();
	return composite;
	}

	/* (non-Javadoc)
	* Add the tabs relevant to the project to edit area tab folder.
	*/
	protected void createEditArea(Composite parent) {
	containerSC = new ScrolledComposite(parent, SWT.H_SCROLL \| SWT.V_SCROLL);
	containerSC.setExpandHorizontal(true);
	containerSC.setExpandVertical(true);

	// Add a container for the build settings page
	settingsPageContainer = new Composite(containerSC, SWT.NULL);
	settingsPageContainer.setLayout(new PageLayout());

	containerSC.setContent(settingsPageContainer);
	containerSC.setMinSize(settingsPageContainer.computeSize(SWT.DEFAULT, SWT.DEFAULT));
	settingsPageContainer.layout();
	}

	protected void createSelectionArea (Composite parent) {
	// Create a label and list viewer
	Composite composite = ControlFactory.createComposite(parent, 1);
	optionList = new TreeViewer(composite, SWT.SINGLE\|SWT.H_SCROLL\|SWT.V_SCROLL\|SWT.BORDER);
	optionList.addSelectionChangedListener(new ISelectionChangedListener() {
	public void selectionChanged(SelectionChangedEvent event) {
	handleOptionSelection();
	}
	});
	optionList.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));
	optionList.setLabelProvider(new ToolListLabelProvider());
	}

	/**
	* Method displayOptionsForTool.
	* @param toolReference
	*/
	private void displayOptionsForCategory(IOptionCategory category) {
	// Do nothing if the selected category is is unchanged
	if (category == selectedCategory) {
	return;
	}
	selectedCategory = category;

	// Cache the current build setting page
	BuildToolSettingsPage oldPage = currentSettingsPage;
	currentSettingsPage = null;

	// Create a new settings page if necessary
	List pages = getPagesForConfig();
	ListIterator iter = pages.listIterator();
	while (iter.hasNext()) {
	BuildToolSettingsPage page = (BuildToolSettingsPage) iter.next();
	if (page.getCategory().equals(category)) {
	currentSettingsPage = page;
	break;
	}
	}
	if (currentSettingsPage == null) {
	currentSettingsPage = new BuildToolSettingsPage(selectedConfiguration, category);
	pages.add(currentSettingsPage);
	currentSettingsPage.setContainer(this);
	if (currentSettingsPage.getControl() == null) {
	currentSettingsPage.createControl(settingsPageContainer);
	}
	}

	// Make all the other pages invisible
	Control[] children = settingsPageContainer.getChildren();
	Control currentControl = currentSettingsPage.getControl();
	for (int i = 0; i < children.length; i++) {
	if (children[i] != currentControl)
	children[i].setVisible(false);
	}
	currentSettingsPage.setVisible(true);
	if (oldPage != null)
	oldPage.setVisible(false);

	// Set the size of the scrolled area
	containerSC.setMinSize(currentSettingsPage.computeSize());
	settingsPageContainer.layout();
	}

	/* (non-Javadoc)
	* @return an array of names for the configurations defined for the chosen target
	*/
	private String [] getConfigurationNames () {
	String [] names = new String[configurations.length];
	for (int index = 0; index < configurations.length; ++index) {
	names[index] = configurations[index].getName();
	}
	return names;
	}

	/**
	* @return
	*/
	protected Point getLastShellSize() {
	if (lastShellSize == null) {
	Shell shell = getShell();
	if (shell != null)
	lastShellSize = shell.getSize();
	}
	return lastShellSize;
	}

	private List getPagesForConfig() {
	List pages = (List) configToPageListMap.get(selectedConfiguration.getId());
	if (pages == null) {
	pages = new ArrayList();
	configToPageListMap.put(selectedConfiguration.getId(), pages);
	}
	return pages;
	}

	private String [] getPlatformNames() {
	String [] names = new String[targets.length];
	for (int index = 0; index < targets.length; ++index) {
	names[index] = targets[index].getName();
	}
	return names;
	}

	/* (non-Javadoc)
	* @see org.eclipse.jface.preference.IPreferencePageContainer#getPreferenceStore()
	*/
	public IPreferenceStore getPreferenceStore()
	{
	return settingsStore;
	}

	private IProject getProject() {
	Object element= getElement();
	if (element != null && element instanceof IProject) {
	return (IProject)element;
	}
	return null;
	}

	/**
	* @return
	*/
	public IConfiguration getSelectedConfiguration() {
	return selectedConfiguration;
	}

	/*
	* Event Handlers
	*/
	private void handleConfigSelection () {
	// If there is nothing in config selection widget just bail
	if (configSelector.getItemCount() == 0) return;

	// Cache the selected config
	selectedConfiguration = configurations[configSelector.getSelectionIndex()];

	// Set the content provider for the list viewer
	ToolListContentProvider provider = new ToolListContentProvider();
	optionList.setContentProvider(provider);
	optionList.setInput(selectedConfiguration);
	optionList.expandAll();

	// Recreate the settings store for the configuration
	settingsStore = new BuildToolsSettingsStore(selectedConfiguration);

	// Select the first tool or option category in the list that has options
	Object[] elements = provider.getElements(selectedConfiguration);
	Object primary = elements.length > 0 ? elements[0] : null;

	if (primary != null && primary instanceof ITool) {
	// Check to see if there are any options.
	ITool tool = (ITool)primary;
	IOptionCategory top = tool.getTopOptionCategory();
	IOption[] topOpts = top.getOptions(selectedConfiguration);
	if (topOpts != null && topOpts.length == 0) {
	// Get the children categories and start looking
	IOptionCategory[] children = top.getChildCategories();
	for (int i = 0; i < children.length; i++) {
	IOptionCategory category = children[i];
	IOption[] catOpts = category.getOptions(selectedConfiguration);
	if (catOpts != null && catOpts.length > 0) {
	primary = category;
	break;
	}
	}
	}
	}

	if (primary != null) {
	optionList.setSelection(new StructuredSelection(primary));
	}
	}

	// Event handler for the manage configuration button event
	private void handleManageConfig () {
	ManageConfigDialog manageDialog = new ManageConfigDialog(getShell(), ManagedBuilderUIPlugin.getResourceString(MANAGE_TITLE), selectedTarget);
	if (manageDialog.open() == ManageConfigDialog.OK) {
	boolean updateConfigs = false;

	// Get the build output name
	String newBuildOutput = manageDialog.getBuildArtifactName();
	if (!selectedTarget.getArtifactName().equals(newBuildOutput)) {
	selectedTarget.setBuildArtifact(newBuildOutput);
	}

	// Get the new make command
	if (manageDialog.useDefaultMakeCommand()) {
	// This is a cheap assignment to null so do it to be doubly sure
	selectedTarget.resetMakeCommand();
	} else {
	String makeCommand = manageDialog.getMakeCommand();
	selectedTarget.setMakeCommand(makeCommand);
	}

	// Check to see if any configurations have to be deleted
	List deletedConfigs = manageDialog.getDeletedConfigIds();
	Iterator iter = deletedConfigs.listIterator();
	while (iter.hasNext()) {
	String id = (String)iter.next();

	// Remove the configurations from the target
	selectedTarget.removeConfiguration(id);

	// Clean up the UI
	configurations = selectedTarget.getConfigurations();
	configSelector.removeAll();
	configSelector.setItems(getConfigurationNames());
	configSelector.select(0);
	updateConfigs = true;
	}

	// Check to see if any have to be added
	SortedMap newConfigs = manageDialog.getNewConfigs();
	Set keys = newConfigs.keySet();
	Iterator keyIter = keys.iterator();
	Random r = new Random();
	r.setSeed(System.currentTimeMillis());
	while (keyIter.hasNext()) {
	String name = (String) keyIter.next();
	IConfiguration parent = (IConfiguration) newConfigs.get(name);
	if (parent != null) {
	int id = r.nextInt();
	if (id < 0) {
	id *= -1;
	}
	String newId = parent.getId() + "." + id;
	IConfiguration newConfig = selectedTarget.createConfiguration(parent, newId);
	newConfig.setName(name);
	// Update the config lists
	configurations = selectedTarget.getConfigurations();
	configSelector.removeAll();
	configSelector.setItems(getConfigurationNames());
	configSelector.select(configSelector.indexOf(name));
	updateConfigs = true;
	}
	}
	if (updateConfigs){
	handleConfigSelection();
	}
	}
	return;
	}

	private void handleOptionSelection() {
	// Get the selection from the tree list
	IStructuredSelection selection = (IStructuredSelection) optionList.getSelection();

	// Set the option page based on the selection
	Object element = selection.getFirstElement();
	if (element instanceof IOptionCategory) {
	displayOptionsForCategory((IOptionCategory)element);
	}
	}

	private void handleTargetSelection() {
	// Is there anything in the selector widget
	if (targetSelector.getItemCount() == 0) {
	manageConfigs.setEnabled(false);
	return;
	}

	// Enable the manage button
	manageConfigs.setEnabled(true);

	// Cache the platform at the selection index
	selectedTarget = targets[targetSelector.getSelectionIndex()];

	// Update the contents of the configuration widget
	populateConfigurations();
	}

	/*
	* (non-javadoc)
	* Initialize the relative weights (widths) of the 2 sides of the sash.
	*/
	protected void initializeSashForm() {
	sashForm.setWeights(DEFAULT_SASH_WEIGHTS);
	}

	/*
	* (non-Javadoc)
	* @see org.eclipse.jface.preference.PreferencePage#performDefaults()
	*/
	protected void performDefaults() {
	// Empty the page list
	List pages = getPagesForConfig();
	pages.clear();

	// Get the build manager to reset build info for project
	ManagedBuildManager.resetConfiguration(getProject(), getSelectedConfiguration());

	// Recreate the settings store for the configuration
	settingsStore = new BuildToolsSettingsStore(getSelectedConfiguration());

	// Reset the category selection and run selection event handler
	selectedCategory = null;
	handleOptionSelection();
	}

	/*
	* (non-Javadoc)
	* @see org.eclipse.jface.preference.IPreferencePage#performOk()
	*/
	public boolean performOk() {
	// Force each settings page to update
	List pages = getPagesForConfig();
	ListIterator iter = pages.listIterator();
	while (iter.hasNext()) {
	BuildToolSettingsPage page = (BuildToolSettingsPage) iter.next();
	page.performOk();
	}

	// Write out the build model info
	ManagedBuildManager.setDefaultConfiguration(getProject(), getSelectedConfiguration());
	ManagedBuildManager.saveBuildInfo(getProject());
	return true;
	}

	private void populateConfigurations() {
	// If the config select widget is not there yet, just stop
	if (configSelector == null) return;

	// Find the configurations defined for the platform
	configurations = selectedTarget.getConfigurations();

	// Clear and replace the contents of the selector widget
	configSelector.removeAll();
	configSelector.setItems(getConfigurationNames());

	// Make sure the active configuration is selected
	IManagedBuildInfo info = ManagedBuildManager.getBuildInfo(getProject());
	IConfiguration defaultConfig = info.getDefaultConfiguration(selectedTarget);
	int index = configSelector.indexOf(defaultConfig.getName());
	configSelector.select(index == -1 ? 0 : index);
	handleConfigSelection();
	}

	/**
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateButtons()
	*/
	public void updateButtons() {
	}
	/**
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateMessage()
	*/
	public void updateMessage() {
	}
	/**
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateTitle()
	*/
	public void updateTitle() {
	}
	}