Change Eclipse-LazyStart: true to Bundle-ActivationPolicy: lazy (upgrade to The Equin...
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpeclipse / phpeditor / JavaSourceViewer.java
index 2dae127..124ee59 100644 (file)
 
 package net.sourceforge.phpeclipse.phpeditor;
 
+import java.util.ArrayList;
 
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.IRegion;
-import org.eclipse.jface.text.IRewriteTarget;
-import org.eclipse.jface.text.Region;
-import org.eclipse.jface.text.formatter.FormattingContextProperties;
-import org.eclipse.jface.text.formatter.IContentFormatterExtension2;
-import org.eclipse.jface.text.formatter.IFormattingContext;
+import net.sourceforge.phpdt.internal.ui.text.SmartBackspaceManager;
+import net.sourceforge.phpdt.ui.PreferenceConstants;
+import net.sourceforge.phpdt.ui.text.PHPSourceViewerConfiguration;
+
+import org.eclipse.jface.preference.IPreferenceStore;
+import org.eclipse.jface.preference.PreferenceConverter;
+import org.eclipse.jface.text.Assert;
+import org.eclipse.jface.text.ITextPresentationListener;
 import org.eclipse.jface.text.information.IInformationPresenter;
+import org.eclipse.jface.text.reconciler.IReconciler;
 import org.eclipse.jface.text.source.IOverviewRuler;
 import org.eclipse.jface.text.source.IVerticalRuler;
-import org.eclipse.jface.text.source.SourceViewer;
 import org.eclipse.jface.text.source.SourceViewerConfiguration;
+import org.eclipse.jface.text.source.projection.ProjectionViewer;
+import org.eclipse.jface.util.IPropertyChangeListener;
+import org.eclipse.jface.util.PropertyChangeEvent;
+import org.eclipse.swt.custom.StyledText;
+import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.RGB;
 import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.texteditor.AbstractDecoratedTextEditorPreferenceConstants;
 
-//import net.sourceforge.phpdt.ui.text.JavaSourceViewerConfiguration;
-
-
-
-public class JavaSourceViewer extends SourceViewer {
+public class JavaSourceViewer extends ProjectionViewer implements
+               IPropertyChangeListener {
 
        /**
         * Text operation code for requesting the outline for the current input.
         */
-       public static final int SHOW_OUTLINE= 51;
+       public static final int SHOW_OUTLINE = 51;
 
        /**
-        * Text operation code for requesting the outline for the element at the current position.
+        * Text operation code for requesting the outline for the element at the
+        * current position.
         */
-       public static final int OPEN_STRUCTURE= 52;
+       public static final int OPEN_STRUCTURE = 52;
 
+       /**
+        * Text operation code for requesting the hierarchy for the current input.
+        */
+       public static final int SHOW_HIERARCHY = 53;
 
        private IInformationPresenter fOutlinePresenter;
+
        private IInformationPresenter fStructurePresenter;
 
-       public JavaSourceViewer(Composite parent, IVerticalRuler verticalRuler, IOverviewRuler overviewRuler, boolean showAnnotationsOverview, int styles) {
-               super(parent, verticalRuler, overviewRuler, showAnnotationsOverview, styles);
+       // private IInformationPresenter fHierarchyPresenter;
+
+       /**
+        * This viewer's foreground color.
+        * 
+        * @since 3.0
+        */
+       private Color fForegroundColor;
+
+       /**
+        * The viewer's background color.
+        * 
+        * @since 3.0
+        */
+       private Color fBackgroundColor;
+
+       /**
+        * This viewer's selection foreground color.
+        * 
+        * @since 3.0
+        */
+       private Color fSelectionForegroundColor;
+
+       /**
+        * The viewer's selection background color.
+        * 
+        * @since 3.0
+        */
+       private Color fSelectionBackgroundColor;
+
+       /**
+        * The preference store.
+        * 
+        * @since 3.0
+        */
+       private IPreferenceStore fPreferenceStore;
+
+       /**
+        * Is this source viewer configured?
+        * 
+        * @since 3.0
+        */
+       private boolean fIsConfigured;
+
+       /**
+        * The backspace manager of this viewer.
+        * 
+        * @since 3.0
+        */
+       private SmartBackspaceManager fBackspaceManager;
+
+       public JavaSourceViewer(Composite parent, IVerticalRuler verticalRuler,
+                       IOverviewRuler overviewRuler, boolean showAnnotationsOverview,
+                       int styles, IPreferenceStore store) {
+               super(parent, verticalRuler, overviewRuler, showAnnotationsOverview,
+                               styles);
+               setPreferenceStore(store);
        }
 
        /*
+        * @see org.eclipse.jface.text.source.SourceViewer#createFormattingContext()
+        * @since 3.0
+        */
+       // public IFormattingContext createFormattingContext() {
+       //
+       // IFormattingContext context= new CommentFormattingContext();
+       // Map map= new Hashtable(JavaCore.getOptions());
+       //              
+       // context.storeToMap(PreferenceConstants.getPreferenceStore(), map, false);
+       // context.setProperty(FormattingContextProperties.CONTEXT_PREFERENCES,
+       // map);
+       //              
+       // return context;
+       // }
+       /*
         * @see ITextOperationTarget#doOperation(int)
         */
        public void doOperation(int operation) {
@@ -59,68 +142,24 @@ public class JavaSourceViewer extends SourceViewer {
                        return;
 
                switch (operation) {
-                       case SHOW_OUTLINE:
-                               fOutlinePresenter.showInformation();
-                               return;
-                       case OPEN_STRUCTURE:
-                               fStructurePresenter.showInformation();
-                               return;
-                       case FORMAT :
-                       {
-                               final Point selection= rememberSelection();
-
-                               final IDocument document= getDocument();
-                               IRegion region= new Region(selection.x, selection.y);
-                               if (region.getLength()==0) {
-                                 region = new Region(0, document.getLength());
-                               }
-                               final IRewriteTarget target= getRewriteTarget();
-                               final IFormattingContext context= createFormattingContext();
-
-                               if (selection.y == 0) {
-                                       context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.TRUE);
-                               } else {
-                                       context.setProperty(FormattingContextProperties.CONTEXT_DOCUMENT, Boolean.FALSE);
-                                       context.setProperty(FormattingContextProperties.CONTEXT_REGION, region);
-                               }
-                               try {
-                                       setRedraw(false);
-                                       startSequentialRewriteMode(false);
-                                       target.beginCompoundChange();
-
-                                       final String rememberedContents= document.get();
-                                       
-                                       try {
-                                               
-                                               if (fContentFormatter instanceof IContentFormatterExtension2) {
-                                                       
-                                                       final IContentFormatterExtension2 extension= (IContentFormatterExtension2)fContentFormatter;
-                                                       extension.format(document, context);
-                                                       
-                                               } else
-                                                       fContentFormatter.format(document, region);
-                                               
-                                       } catch (RuntimeException x) {
-                                               // firewall for https://bugs.eclipse.org/bugs/show_bug.cgi?id=47472
-                                               // if something went wrong we undo the changes we just did
-                                               // TODO to be removed
-                                               document.set(rememberedContents);
-                                               throw x;
-                                       }
-                                       
-                               } finally {
-
-                                       target.endCompoundChange();
-                                       stopSequentialRewriteMode();
-                                       setRedraw(true);
-
-                                       restoreSelection();
-                                       context.dispose();
-                               }
-                               return;
+               case SHOW_OUTLINE:
+                       fOutlinePresenter.showInformation();
+                       return;
+               case OPEN_STRUCTURE:
+                       fStructurePresenter.showInformation();
+                       return;
+               case SHOW_HIERARCHY:
+                       // fHierarchyPresenter.showInformation();
+                       return;
+               case FORMAT:
+                       Point point = getSelectedRange();
+                       if (point.y == 0) {
+                               // setSelectedRange(0, getDocument().getLength());
+                               revealRange(0, getDocument().getLength());
                        }
+                       break;
                }
-               
+
                super.doOperation(operation);
        }
 
@@ -132,6 +171,10 @@ public class JavaSourceViewer extends SourceViewer {
                        return fOutlinePresenter != null;
                if (operation == OPEN_STRUCTURE)
                        return fStructurePresenter != null;
+               if (operation == SHOW_HIERARCHY)
+                       // return fHierarchyPresenter != null;
+                       return false;
+
                return super.canDoOperation(operation);
        }
 
@@ -141,27 +184,288 @@ public class JavaSourceViewer extends SourceViewer {
        public void configure(SourceViewerConfiguration configuration) {
                super.configure(configuration);
                if (configuration instanceof PHPSourceViewerConfiguration) {
-                       fOutlinePresenter= ((PHPSourceViewerConfiguration)configuration).getOutlinePresenter(this, false);
+                       fOutlinePresenter = ((PHPSourceViewerConfiguration) configuration)
+                                       .getOutlinePresenter(this, false);
                        fOutlinePresenter.install(this);
                }
                if (configuration instanceof PHPSourceViewerConfiguration) {
-                       fStructurePresenter= ((PHPSourceViewerConfiguration)configuration).getOutlinePresenter(this, true);
+                       fStructurePresenter = ((PHPSourceViewerConfiguration) configuration)
+                                       .getOutlinePresenter(this, true);
                        fStructurePresenter.install(this);
                }
+               if (configuration instanceof PHPSourceViewerConfiguration) {
+                       // fHierarchyPresenter=
+                       // ((PHPSourceViewerConfiguration)configuration).getHierarchyPresenter(this,
+                       // true);
+                       // fHierarchyPresenter.install(this);
+
+                       if (fPreferenceStore != null) {
+                               fPreferenceStore.addPropertyChangeListener(this);
+                               initializeViewerColors();
+                       }
+               }
+               fIsConfigured = true;
+       }
+
+       protected void initializeViewerColors() {
+               if (fPreferenceStore != null) {
+
+                       StyledText styledText = getTextWidget();
+
+                       // ----------- foreground color --------------------
+                       Color color = fPreferenceStore
+                                       .getBoolean(PreferenceConstants.EDITOR_FOREGROUND_DEFAULT_COLOR) ? null
+                                       : createColor(fPreferenceStore,
+                                                       PreferenceConstants.EDITOR_FOREGROUND_COLOR,
+                                                       styledText.getDisplay());
+                       styledText.setForeground(color);
+
+                       if (fForegroundColor != null)
+                               fForegroundColor.dispose();
+
+                       fForegroundColor = color;
+
+                       // ---------- background color ----------------------
+                       color = fPreferenceStore
+                                       .getBoolean(PreferenceConstants.EDITOR_BACKGROUND_DEFAULT_COLOR) ? null
+                                       : createColor(fPreferenceStore,
+                                                       PreferenceConstants.EDITOR_BACKGROUND_COLOR,
+                                                       styledText.getDisplay());
+                       styledText.setBackground(color);
+
+                       if (fBackgroundColor != null)
+                               fBackgroundColor.dispose();
+
+                       fBackgroundColor = color;
+
+                       // ----------- selection foreground color --------------------
+                       color = fPreferenceStore
+                                       .getBoolean(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_FOREGROUND_DEFAULT_COLOR) ? null
+                                       : createColor(
+                                                       fPreferenceStore,
+                                                       AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_FOREGROUND_COLOR,
+                                                       styledText.getDisplay());
+                       styledText.setSelectionForeground(color);
+
+                       if (fSelectionForegroundColor != null)
+                               fSelectionForegroundColor.dispose();
+
+                       fSelectionForegroundColor = color;
+
+                       // ---------- selection background color ----------------------
+                       color = fPreferenceStore
+                                       .getBoolean(AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_BACKGROUND_DEFAULT_COLOR) ? null
+                                       : createColor(
+                                                       fPreferenceStore,
+                                                       AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_BACKGROUND_COLOR,
+                                                       styledText.getDisplay());
+                       styledText.setSelectionBackground(color);
+
+                       if (fSelectionBackgroundColor != null)
+                               fSelectionBackgroundColor.dispose();
+
+                       fSelectionBackgroundColor = color;
+               }
+       }
+
+       /**
+        * Creates a color from the information stored in the given preference
+        * store. Returns <code>null</code> if there is no such information
+        * available.
+        * 
+        * @param store
+        *            the store to read from
+        * @param key
+        *            the key used for the lookup in the preference store
+        * @param display
+        *            the display used create the color
+        * @return the created color according to the specification in the
+        *         preference store
+        * @since 3.0
+        */
+       private Color createColor(IPreferenceStore store, String key,
+                       Display display) {
+
+               RGB rgb = null;
+
+               if (store.contains(key)) {
+
+                       if (store.isDefault(key))
+                               rgb = PreferenceConverter.getDefaultColor(store, key);
+                       else
+                               rgb = PreferenceConverter.getColor(store, key);
+
+                       if (rgb != null)
+                               return new Color(display, rgb);
+               }
+
+               return null;
        }
 
        /*
-        * @see TextViewer#handleDispose()
+        * @see org.eclipse.jface.text.source.ISourceViewerExtension2#unconfigure()
+        * @since 3.0
         */
-       protected void handleDispose() {
+       public void unconfigure() {
                if (fOutlinePresenter != null) {
-                       fOutlinePresenter.uninstall();  
-                       fOutlinePresenter= null;
+                       fOutlinePresenter.uninstall();
+                       fOutlinePresenter = null;
                }
                if (fStructurePresenter != null) {
                        fStructurePresenter.uninstall();
-                       fStructurePresenter= null;
+                       fStructurePresenter = null;
+               }
+               // if (fHierarchyPresenter != null) {
+               // fHierarchyPresenter.uninstall();
+               // fHierarchyPresenter= null;
+               // }
+               if (fForegroundColor != null) {
+                       fForegroundColor.dispose();
+                       fForegroundColor = null;
+               }
+               if (fBackgroundColor != null) {
+                       fBackgroundColor.dispose();
+                       fBackgroundColor = null;
                }
+               if (fPreferenceStore != null)
+                       fPreferenceStore.removePropertyChangeListener(this);
+
+               super.unconfigure();
+
+               fIsConfigured = false;
+       }
+
+       /*
+        * @see org.eclipse.jface.text.source.SourceViewer#rememberSelection()
+        */
+       public Point rememberSelection() {
+               return super.rememberSelection();
+       }
+
+       /*
+        * @see org.eclipse.jface.text.source.SourceViewer#restoreSelection()
+        */
+       public void restoreSelection() {
+               super.restoreSelection();
+       }
+
+       /*
+        * @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
+        */
+       public void propertyChange(PropertyChangeEvent event) {
+               String property = event.getProperty();
+               if (PreferenceConstants.EDITOR_FOREGROUND_COLOR.equals(property)
+                               || PreferenceConstants.EDITOR_FOREGROUND_DEFAULT_COLOR
+                                               .equals(property)
+                               || PreferenceConstants.EDITOR_BACKGROUND_COLOR.equals(property)
+                               || PreferenceConstants.EDITOR_BACKGROUND_DEFAULT_COLOR
+                                               .equals(property)
+                               || AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_FOREGROUND_COLOR
+                                               .equals(property)
+                               || AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_FOREGROUND_DEFAULT_COLOR
+                                               .equals(property)
+                               || AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_BACKGROUND_COLOR
+                                               .equals(property)
+                               || AbstractDecoratedTextEditorPreferenceConstants.EDITOR_SELECTION_BACKGROUND_DEFAULT_COLOR
+                                               .equals(property)) {
+                       initializeViewerColors();
+               }
+       }
+
+       /**
+        * Sets the preference store on this viewer.
+        * 
+        * @param store
+        *            the preference store
+        * 
+        * @since 3.0
+        */
+       public void setPreferenceStore(IPreferenceStore store) {
+               if (fIsConfigured && fPreferenceStore != null)
+                       fPreferenceStore.removePropertyChangeListener(this);
+
+               fPreferenceStore = store;
+
+               if (fIsConfigured && fPreferenceStore != null) {
+                       fPreferenceStore.addPropertyChangeListener(this);
+                       initializeViewerColors();
+               }
+       }
+
+       /*
+        * @see org.eclipse.jface.text.source.SourceViewer#createControl(org.eclipse.swt.widgets.Composite,
+        *      int)
+        */
+       protected void createControl(Composite parent, int styles) {
+               super.createControl(parent, styles);
+
+               fBackspaceManager = new SmartBackspaceManager();
+               fBackspaceManager.install(this);
+       }
+
+       /**
+        * Returns the backspace manager for this viewer.
+        * 
+        * @return the backspace manager for this viewer, or <code>null</code> if
+        *         there is none
+        * @since 3.0
+        */
+       public SmartBackspaceManager getBackspaceManager() {
+               return fBackspaceManager;
+       }
+
+       /*
+        * @see org.eclipse.jface.text.source.SourceViewer#handleDispose()
+        */
+       protected void handleDispose() {
+               if (fBackspaceManager != null) {
+                       fBackspaceManager.uninstall();
+                       fBackspaceManager = null;
+               }
+
                super.handleDispose();
        }
+
+       /**
+        * Prepends the text presentation listener at the beginning of the viewer's
+        * list of text presentation listeners. If the listener is already
+        * registered with the viewer this call moves the listener to the beginning
+        * of the list.
+        * 
+        * @param listener
+        *            the text presentation listener
+        * @since 3.0
+        */
+       public void prependTextPresentationListener(
+                       ITextPresentationListener listener) {
+
+               Assert.isNotNull(listener);
+
+               if (fTextPresentationListeners == null)
+                       fTextPresentationListeners = new ArrayList();
+
+               fTextPresentationListeners.remove(listener);
+               fTextPresentationListeners.add(0, listener);
+       }
+
+       /**
+        * Sets the given reconciler.
+        * 
+        * @param reconciler
+        *            the reconciler
+        * @since 3.0
+        */
+       void setReconciler(IReconciler reconciler) {
+               fReconciler = reconciler;
+       }
+
+       /**
+        * Returns the reconciler.
+        * 
+        * @return the reconciler or <code>null</code> if not set
+        * @since 3.0
+        */
+       Object getReconciler() {
+               return fReconciler;
+       }
 }