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   1 package net.sourceforge.phpdt.internal.debug.ui.preferences;
   2
   3 import java.util.ArrayList;
   4 import java.util.List;
   5
   6 import net.sourceforge.phpdt.internal.debug.ui.PHPDebugUiMessages;
   7 import net.sourceforge.phpdt.internal.launching.PHPInterpreter;
   8 import net.sourceforge.phpdt.internal.launching.PHPRuntime;
   9
  10 import org.eclipse.jface.preference.PreferencePage;
  11 import org.eclipse.jface.viewers.CheckStateChangedEvent;
  12 import org.eclipse.jface.viewers.CheckboxTableViewer;
  13 import org.eclipse.jface.viewers.DoubleClickEvent;
  14 import org.eclipse.jface.viewers.ICheckStateListener;
  15 import org.eclipse.jface.viewers.IDoubleClickListener;
  16 import org.eclipse.jface.viewers.ISelectionChangedListener;
  17 import org.eclipse.jface.viewers.IStructuredSelection;
  18 import org.eclipse.jface.viewers.SelectionChangedEvent;
  19 import org.eclipse.swt.SWT;
  20 import org.eclipse.swt.layout.GridData;
  21 import org.eclipse.swt.layout.GridLayout;
  22 import org.eclipse.swt.widgets.Button;
  23 import org.eclipse.swt.widgets.Composite;
  24 import org.eclipse.swt.widgets.Control;
  25 import org.eclipse.swt.widgets.Event;
  26 import org.eclipse.swt.widgets.Listener;
  27 import org.eclipse.swt.widgets.Table;
  28 import org.eclipse.swt.widgets.TableColumn;
  29 import org.eclipse.swt.widgets.TableItem;
  30 import org.eclipse.ui.IWorkbench;
  31 import org.eclipse.ui.IWorkbenchPreferencePage;
  32
  33 public class PHPInterpreterPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {
  34         protected CheckboxTableViewer tableViewer;
  35         protected Button addButton, editButton, removeButton;
  36
  37         public PHPInterpreterPreferencePage() {
  38                 super();
  39         }
  40
  41         public void init(IWorkbench workbench) {}
  42
  43         protected Control createContents(Composite parent) {
  44                 noDefaultAndApplyButton();
  45
  46                 Composite composite = createPageRoot(parent);
  47                 Table table = createInstalledInterpretersTable(composite);
  48                 createInstalledInterpretersTableViewer(table);
  49                 createButtonGroup(composite);
  50
  51                 tableViewer.setInput(PHPRuntime.getDefault().getInstalledInterpreters());
  52                 PHPInterpreter selectedInterpreter = PHPRuntime.getDefault().getSelectedInterpreter();
  53                 if (selectedInterpreter != null)
  54                         tableViewer.setChecked(selectedInterpreter, true);
  55
  56                 enableButtons();
  57
  58                 return composite;
  59         }
  60
  61         protected void createButtonGroup(Composite composite) {
  62                 Composite buttons = new Composite(composite, SWT.NULL);
  63                 buttons.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING));
  64                 GridLayout layout = new GridLayout();
  65                 layout.marginHeight = 0;
  66                 layout.marginWidth = 0;
  67                 buttons.setLayout(layout);
  68
  69                 addButton = new Button(buttons, SWT.PUSH);
  70                 addButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
  71                 addButton.setText(PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.addButton.label")); //$NON-NLS-1$
  72                 addButton.addListener(SWT.Selection, new Listener() {
  73                         public void handleEvent(Event evt) {
  74                                 addInterpreter();
  75                         }
  76                 });
  77
  78                 editButton = new Button(buttons, SWT.PUSH);
  79                 editButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
  80                 editButton.setText(PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.editButton.label")); //$NON-NLS-1$
  81                 editButton.addListener(SWT.Selection, new Listener() {
  82                         public void handleEvent(Event evt) {
  83                                 editInterpreter();
  84                         }
  85                 });
  86
  87                 removeButton = new Button(buttons, SWT.PUSH);
  88                 removeButton.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
  89                 removeButton.setText(PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.removeButton.label")); //$NON-NLS-1$
  90                 removeButton.addListener(SWT.Selection, new Listener() {
  91                         public void handleEvent(Event evt) {
  92                                 removeInterpreter();
  93                         }
  94                 });
  95         }
  96
  97         protected void createInstalledInterpretersTableViewer(Table table) {
  98                 tableViewer = new CheckboxTableViewer(table);
  99
 100                 tableViewer.setLabelProvider(new PHPInterpreterLabelProvider());
 101                 tableViewer.setContentProvider(new PHPInterpreterContentProvider());
 102
 103                 tableViewer.addSelectionChangedListener(new ISelectionChangedListener() {
 104                         public void selectionChanged(SelectionChangedEvent evt) {
 105                                 enableButtons();
 106                         }
 107                 });
 108
 109                 tableViewer.addCheckStateListener(new ICheckStateListener() {
 110                         public void checkStateChanged(CheckStateChangedEvent event) {
 111                                 updateSelectedInterpreter(event.getElement());
 112                         }
 113                 });
 114
 115                 tableViewer.addDoubleClickListener(new IDoubleClickListener() {
 116                         public void doubleClick(DoubleClickEvent e) {
 117                                 editInterpreter();
 118                         }
 119                 });
 120         }
 121
 122         protected Table createInstalledInterpretersTable(Composite composite) {
 123                 Table table = new Table(composite, SWT.CHECK | SWT.BORDER | SWT.FULL_SELECTION);
 124
 125                 GridData data = new GridData(GridData.FILL_BOTH);
 126                 data.widthHint = convertWidthInCharsToPixels(80);
 127                 data.heightHint = convertHeightInCharsToPixels(10);
 128                 table.setLayoutData(data);
 129                 table.setHeaderVisible(true);
 130                 table.setLinesVisible(false);
 131
 132                 TableColumn column = new TableColumn(table, SWT.NULL);
 133                 column.setText(PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.PHPInterpreterTable.interpreterName")); //$NON-NLS-1$
 134                 column.setWidth(125);
 135
 136                 column = new TableColumn(table, SWT.NULL);
 137                 column.setText(PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.PHPInterpreterTable.interpreterPath")); //$NON-NLS-1$
 138                 column.setWidth(350);
 139
 140                 return table;
 141         }
 142
 143         protected Composite createPageRoot(Composite parent) {
 144                 Composite composite = new Composite(parent, SWT.NULL);
 145                 GridLayout layout = new GridLayout();
 146                 layout.numColumns = 2;
 147                 composite.setLayout(layout);
 148                 return composite;
 149         }
 150
 151         protected void addInterpreter() {
 152                 PHPInterpreter newInterpreter = new PHPInterpreter(null, null);
 153                 EditInterpreterDialog editor = new EditInterpreterDialog(getShell(), PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.EditInterpreterDialog.addInterpreter.title")); //$NON-NLS-1$
 154                 editor.create();
 155                 editor.setInterpreterToEdit(newInterpreter);
 156                 if (EditInterpreterDialog.OK == editor.open())
 157                         tableViewer.add(newInterpreter);
 158         }
 159
 160         protected void removeInterpreter() {
 161                 tableViewer.remove(getSelectedInterpreter());
 162         }
 163
 164         protected void enableButtons() {
 165                 if (getSelectedInterpreter() != null) {
 166                         editButton.setEnabled(true);
 167                         removeButton.setEnabled(true);
 168                 } else {
 169                         editButton.setEnabled(false);
 170                         removeButton.setEnabled(false);
 171                 }
 172         }
 173
 174         protected void updateSelectedInterpreter(Object interpreter) {
 175                 Object[] checkedElements = tableViewer.getCheckedElements();
 176                 for (int i = 0; i < checkedElements.length; i++) {
 177                         tableViewer.setChecked(checkedElements[i], false);
 178                 }
 179
 180                 tableViewer.setChecked(interpreter, true);
 181         }
 182
 183         protected void editInterpreter() {
 184                 EditInterpreterDialog editor = new EditInterpreterDialog(getShell(), PHPDebugUiMessages.getString("PHPInterpreterPreferencePage.EditInterpreterDialog.editInterpreter.title")); //$NON-NLS-1$
 185                 editor.create();
 186
 187                 PHPInterpreter anInterpreter = getSelectedInterpreter();
 188                 editor.setInterpreterToEdit(anInterpreter);
 189                 if (EditInterpreterDialog.OK == editor.open())
 190                         tableViewer.update(anInterpreter, null);
 191         }
 192
 193         protected PHPInterpreter getSelectedInterpreter() {
 194                 IStructuredSelection selection = (IStructuredSelection) tableViewer.getSelection();
 195                 return (PHPInterpreter) selection.getFirstElement();
 196         }
 197
 198         public boolean performOk() {
 199                 TableItem[] tableItems = tableViewer.getTable().getItems();
 200                 List installedInterpreters = new ArrayList(tableItems.length);
 201                 for (int i = 0; i < tableItems.length; i++)
 202                         installedInterpreters.add(tableItems[i].getData());
 203                 PHPRuntime.getDefault().setInstalledInterpreters(installedInterpreters);
 204
 205                 Object[] checkedElements = tableViewer.getCheckedElements();
 206                 if (checkedElements.length > 0)
 207                         PHPRuntime.getDefault().setSelectedInterpreter((PHPInterpreter) checkedElements[0]);
 208
 209                 return super.performOk();
 210         }
 211
 212 }