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 org.eclipse.cdt.managedbuilder.core.BuildException;
import org.eclipse.cdt.managedbuilder.core.IConfiguration;
import org.eclipse.cdt.managedbuilder.core.IOption;
import org.eclipse.cdt.managedbuilder.core.IOptionCategory;
import org.eclipse.cdt.managedbuilder.core.ManagedBuildManager;
import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.swt.graphics.Point;

public class BuildToolSettingsPage extends FieldEditorPreferencePage {

	// Variables to help map this page back to an option category and tool
	private IConfiguration configuration;
	private IOptionCategory category;
	
	BuildToolSettingsPage(IConfiguration configuration, IOptionCategory category) {
		// Must be a grid layout and we don't want another set of buttons
		super(GRID);
		noDefaultAndApplyButton();

		// Cache the option category this page is created for
		this.configuration = configuration;
		this.category = category;
	}
	
	/* (non-Javadoc)
	 * @see org.eclipse.jface.preference.PreferencePage#computeSize()
	 */
	public Point computeSize() {
		// TODO Auto-generated method stub
		return super.computeSize();
	}
	
	/**
	 * @see org.eclipse.jface.preference.FieldEditorPreferencePage#createFieldEditors()
	 */
	protected void createFieldEditors() {
		// Get the preference store for the build settings
		IPreferenceStore settings = getPreferenceStore();
		setPreferenceStore(settings);

		// Iterate over the options in the category and create a field editor for each
		IOption[] options = category.getOptions(configuration);
		for (int index = 0; index < options.length; ++index) {
			// Get the option
			IOption opt = options[index];
			// Figure out which type the option is and add a proper field editor for it
			switch (opt.getValueType()) {
				case IOption.STRING :
					StringFieldEditor stringField = new StringFieldEditor(opt.getId(), opt.getName(), getFieldEditorParent());
					addField(stringField);
					break;
				case IOption.BOOLEAN :
					BooleanFieldEditor booleanField = new BooleanFieldEditor(opt.getId(), opt.getName(), getFieldEditorParent());
					addField(booleanField);
					break;
				case IOption.ENUMERATED :
					String sel;
					try {
						sel = opt.getSelectedEnum();
					} catch (BuildException e) {
						// If we get this exception, then the option type is wrong
						break;
					}
					BuildOptionComboFieldEditor comboField = new BuildOptionComboFieldEditor(opt.getId(), opt.getName(), opt.getApplicableValues(), sel, getFieldEditorParent());
					addField(comboField); 
					break;
				case IOption.STRING_LIST :
				case IOption.INCLUDE_PATH :
				case IOption.PREPROCESSOR_SYMBOLS :
				case IOption.LIBRARIES :
				case IOption.OBJECTS:
					BuildOptionListFieldEditor listField = new BuildOptionListFieldEditor(opt.getId(), opt.getName(), getFieldEditorParent());
					addField(listField); 
					break;
				default :
					SummaryFieldEditor summaryField = new SummaryFieldEditor(opt.getId(), opt.getName(), category.getTool(), getFieldEditorParent());
					addField(summaryField);
					break;
//				default :
//					break;
			}
		}
	}

	/**
	 * @return the option category the page was created for
	 */
	public IOptionCategory getCategory() {
		return category;
	}

	/**
	 * @see IPreferencePage#performOk()
	 */
	public boolean performOk() {
		// Write the field editor contents out to the preference store
		boolean ok = super.performOk();

		// Write the preference store values back to the build model
		IOption[] options = category.getOptions(configuration);
		for (int i = 0; i < options.length; i++) {
			IOption option = options[i];

			// Transfer value from preference store to options
			switch (option.getValueType()) {
				case IOption.BOOLEAN :
					boolean boolVal = getPreferenceStore().getBoolean(option.getId());
					ManagedBuildManager.setOption(configuration, option, boolVal);
					break;
				case IOption.ENUMERATED :
					String enumVal = getPreferenceStore().getString(option.getId());
					ManagedBuildManager.setOption(configuration, option, enumVal);
					break;
				case IOption.STRING :
					String strVal = getPreferenceStore().getString(option.getId());
					ManagedBuildManager.setOption(configuration, option, strVal);
					break;
				case IOption.STRING_LIST :
				case IOption.INCLUDE_PATH :
				case IOption.PREPROCESSOR_SYMBOLS :
				case IOption.LIBRARIES :
				case IOption.OBJECTS:
					String listStr = getPreferenceStore().getString(option.getId());
					String[] listVal = BuildToolsSettingsStore.parseString(listStr);
					ManagedBuildManager.setOption(configuration, option, listVal);
					break;
				default :
					break;
			}			
		}
		
		return ok;
	}
}