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