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   1 /*******************************************************************************
   2  * Copyright (c) 2000, 2003 IBM Corporation and others.
   3  * All rights reserved. This program and the accompanying materials
   4  * are made available under the terms of the Common Public License v1.0
   5  * which accompanies this distribution, and is available at
   6  * http://www.eclipse.org/legal/cpl-v10.html
   7  *
   8  * Contributors:
   9  *     IBM Corporation - initial API and implementation
  10  *******************************************************************************/
  11 package net.sourceforge.phpdt.internal.ui.preferences;
  12
  13 import net.sourceforge.phpdt.core.IJavaElement;
  14 import net.sourceforge.phpdt.core.IJavaProject;
  15 import net.sourceforge.phpdt.internal.ui.IJavaHelpContextIds;
  16 import net.sourceforge.phpdt.internal.ui.dialogs.StatusInfo;
  17 import net.sourceforge.phpdt.internal.ui.dialogs.StatusUtil;
  18 import net.sourceforge.phpdt.internal.ui.wizards.IStatusChangeListener;
  19 import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.DialogField;
  20 import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.IDialogFieldListener;
  21 import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.LayoutUtil;
  22 import net.sourceforge.phpdt.internal.ui.wizards.dialogfields.SelectionButtonDialogField;
  23
  24 import org.eclipse.core.runtime.IStatus;
  25 import org.eclipse.jface.dialogs.ControlEnableState;
  26 import org.eclipse.jface.dialogs.Dialog;
  27 import org.eclipse.jface.preference.IPreferenceNode;
  28 import org.eclipse.jface.preference.IPreferencePage;
  29 import org.eclipse.jface.preference.PreferenceDialog;
  30 import org.eclipse.jface.preference.PreferenceManager;
  31 import org.eclipse.jface.preference.PreferenceNode;
  32 import org.eclipse.jface.window.Window;
  33 import org.eclipse.swt.SWT;
  34 import org.eclipse.swt.custom.BusyIndicator;
  35 import org.eclipse.swt.layout.GridData;
  36 import org.eclipse.swt.layout.GridLayout;
  37 import org.eclipse.swt.widgets.Composite;
  38 import org.eclipse.swt.widgets.Control;
  39 import org.eclipse.ui.PlatformUI;
  40 import org.eclipse.ui.dialogs.PropertyPage;
  41
  42 /**
  43  * Property page used to configure project specific task tags settings
  44  */
  45 public class TodoTaskPropertyPage extends PropertyPage {
  46
  47         private TodoTaskConfigurationBlock fConfigurationBlock;
  48
  49         private Control fConfigurationBlockControl;
  50
  51         private ControlEnableState fBlockEnableState;
  52
  53         private SelectionButtonDialogField fUseWorkspaceSettings;
  54
  55         private SelectionButtonDialogField fChangeWorkspaceSettings;
  56
  57         private SelectionButtonDialogField fUseProjectSettings;
  58
  59         private IStatus fBlockStatus;
  60
  61         public TodoTaskPropertyPage() {
  62                 fBlockStatus = new StatusInfo();
  63                 fBlockEnableState = null;
  64
  65                 IDialogFieldListener listener = new IDialogFieldListener() {
  66                         public void dialogFieldChanged(DialogField field) {
  67                                 doDialogFieldChanged(field);
  68                         }
  69                 };
  70
  71                 fUseWorkspaceSettings = new SelectionButtonDialogField(SWT.RADIO);
  72                 fUseWorkspaceSettings.setDialogFieldListener(listener);
  73                 fUseWorkspaceSettings.setLabelText(PreferencesMessages
  74                                 .getString("TodoTaskPropertyPage.useworkspacesettings.label")); //$NON-NLS-1$
  75
  76                 fChangeWorkspaceSettings = new SelectionButtonDialogField(SWT.PUSH);
  77                 fChangeWorkspaceSettings.setLabelText(PreferencesMessages
  78                                 .getString("TodoTaskPropertyPage.useworkspacesettings.change")); //$NON-NLS-1$
  79                 fChangeWorkspaceSettings.setDialogFieldListener(listener);
  80
  81                 fUseWorkspaceSettings.attachDialogField(fChangeWorkspaceSettings);
  82
  83                 fUseProjectSettings = new SelectionButtonDialogField(SWT.RADIO);
  84                 fUseProjectSettings.setDialogFieldListener(listener);
  85                 fUseProjectSettings.setLabelText(PreferencesMessages
  86                                 .getString("TodoTaskPropertyPage.useprojectsettings.label")); //$NON-NLS-1$
  87         }
  88
  89         /*
  90          * @see org.eclipse.jface.dialogs.IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
  91          */
  92         public void createControl(Composite parent) {
  93                 super.createControl(parent);
  94                 PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(),
  95                                 IJavaHelpContextIds.TODOTASK_PROPERTY_PAGE);
  96         }
  97
  98         /*
  99          * @see org.eclipse.jface.preference.IPreferencePage#createContents(Composite)
 100          */
 101         protected Control createContents(Composite parent) {
 102                 IStatusChangeListener listener = new IStatusChangeListener() {
 103                         public void statusChanged(IStatus status) {
 104                                 fBlockStatus = status;
 105                                 doStatusChanged();
 106                         }
 107                 };
 108                 fConfigurationBlock = new TodoTaskConfigurationBlock(listener,
 109                                 getProject());
 110
 111                 Composite composite = new Composite(parent, SWT.NONE);
 112                 GridLayout layout = new GridLayout();
 113                 layout.marginHeight = 0;
 114                 layout.marginWidth = 0;
 115                 layout.numColumns = 1;
 116                 composite.setLayout(layout);
 117
 118                 fUseWorkspaceSettings.doFillIntoGrid(composite, 1);
 119                 LayoutUtil.setHorizontalGrabbing(fUseWorkspaceSettings
 120                                 .getSelectionButton(null));
 121
 122                 fChangeWorkspaceSettings.doFillIntoGrid(composite, 1);
 123                 GridData data = (GridData) fChangeWorkspaceSettings.getSelectionButton(
 124                                 null).getLayoutData();
 125                 data.horizontalIndent = convertWidthInCharsToPixels(3);
 126                 data.horizontalAlignment = GridData.BEGINNING;
 127
 128                 fUseProjectSettings.doFillIntoGrid(composite, 1);
 129
 130                 data = new GridData(GridData.HORIZONTAL_ALIGN_FILL
 131                                 | GridData.VERTICAL_ALIGN_FILL);
 132                 data.horizontalSpan = 1;
 133                 data.horizontalIndent = convertWidthInCharsToPixels(2);
 134
 135                 fConfigurationBlockControl = fConfigurationBlock
 136                                 .createContents(composite);
 137                 fConfigurationBlockControl.setLayoutData(data);
 138
 139                 boolean useProjectSettings = fConfigurationBlock
 140                                 .hasProjectSpecificOptions();
 141
 142                 fUseProjectSettings.setSelection(useProjectSettings);
 143                 fUseWorkspaceSettings.setSelection(!useProjectSettings);
 144
 145                 updateEnableState();
 146                 Dialog.applyDialogFont(composite);
 147                 return composite;
 148         }
 149
 150         private boolean useProjectSettings() {
 151                 return fUseProjectSettings.isSelected();
 152         }
 153
 154         private void doDialogFieldChanged(DialogField field) {
 155                 if (field == fChangeWorkspaceSettings) {
 156                         TodoTaskPreferencePage page = new TodoTaskPreferencePage();
 157                         showPreferencePage(TodoTaskPreferencePage.ID, page);
 158                 } else {
 159                         updateEnableState();
 160                         doStatusChanged();
 161                 }
 162         }
 163
 164         /**
 165          * Method statusChanged.
 166          */
 167         private void doStatusChanged() {
 168                 updateStatus(useProjectSettings() ? fBlockStatus : new StatusInfo());
 169         }
 170
 171         /**
 172          * Method getProject.
 173          */
 174         private IJavaProject getProject() {
 175                 return (IJavaProject) getElement().getAdapter(IJavaElement.class);
 176         }
 177
 178         private void updateEnableState() {
 179                 if (useProjectSettings()) {
 180                         if (fBlockEnableState != null) {
 181                                 fBlockEnableState.restore();
 182                                 fBlockEnableState = null;
 183                         }
 184                 } else {
 185                         if (fBlockEnableState == null) {
 186                                 fBlockEnableState = ControlEnableState
 187                                                 .disable(fConfigurationBlockControl);
 188                         }
 189                 }
 190         }
 191
 192         /*
 193          * @see org.eclipse.jface.preference.IPreferencePage#performDefaults()
 194          */
 195         protected void performDefaults() {
 196                 if (useProjectSettings()) {
 197                         fUseProjectSettings.setSelection(false);
 198                         fUseWorkspaceSettings.setSelection(true);
 199                         fConfigurationBlock.performDefaults();
 200                 }
 201                 super.performDefaults();
 202         }
 203
 204         /*
 205          * @see org.eclipse.jface.preference.IPreferencePage#performOk()
 206          */
 207         public boolean performOk() {
 208                 return fConfigurationBlock.performOk(useProjectSettings());
 209         }
 210
 211         private void updateStatus(IStatus status) {
 212                 setValid(!status.matches(IStatus.ERROR));
 213                 StatusUtil.applyToStatusLine(this, status);
 214         }
 215
 216         private boolean showPreferencePage(String id, IPreferencePage page) {
 217                 final IPreferenceNode targetNode = new PreferenceNode(id, page);
 218
 219                 PreferenceManager manager = new PreferenceManager();
 220                 manager.addToRoot(targetNode);
 221                 final PreferenceDialog dialog = new PreferenceDialog(getShell(),
 222                                 manager);
 223                 final boolean[] result = new boolean[] { false };
 224                 BusyIndicator.showWhile(getShell().getDisplay(), new Runnable() {
 225                         public void run() {
 226                                 dialog.create();
 227                                 dialog.setMessage(targetNode.getLabelText());
 228                                 result[0] = (dialog.open() == Window.OK);
 229                         }
 230                 });
 231                 return result[0];
 232         }
 233
 234 }