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