diff options
Diffstat (limited to 'bundles/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffTreeViewer.java')
| -rw-r--r-- | bundles/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffTreeViewer.java | 700 |
1 files changed, 0 insertions, 700 deletions
diff --git a/bundles/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffTreeViewer.java b/bundles/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffTreeViewer.java deleted file mode 100644 index 90a451564..000000000 --- a/bundles/org.eclipse.compare/compare/org/eclipse/compare/structuremergeviewer/DiffTreeViewer.java +++ /dev/null @@ -1,700 +0,0 @@ -/*
- * (c) Copyright IBM Corp. 2000, 2001.
- * All Rights Reserved.
- */
-package org.eclipse.compare.structuremergeviewer;
-
-import java.util.Iterator;
-import java.util.ResourceBundle;
-
-import org.eclipse.swt.SWT;
-import org.eclipse.swt.events.DisposeEvent;
-import org.eclipse.swt.events.FocusListener;
-import org.eclipse.swt.graphics.Image;
-import org.eclipse.swt.widgets.*;
-
-import org.eclipse.jface.util.*;
-import org.eclipse.jface.action.*;
-import org.eclipse.jface.viewers.*;
-import org.eclipse.jface.preference.IPreferenceStore;
-
-import org.eclipse.compare.internal.*;
-import org.eclipse.compare.*;
-
-/**
- * A tree viewer that works on objects implementing
- * the <code>IDiffContainer</code> and <code>IDiffElement</code> interfaces.
- * <p>
- * This class may be instantiated; it is not intended to be subclassed outside
- * this package.
- * </p>
- *
- * @see IDiffContainer
- * @see IDiffElement
- */
-public class DiffTreeViewer extends TreeViewer {
-
- static class DiffViewerSorter extends ViewerSorter {
-
- public boolean isSorterProperty(Object element, Object property) {
- return false;
- }
-
- public int category(Object node) {
- if (node instanceof DiffNode) {
- Object o= ((DiffNode) node).getId();
- if (o instanceof DocumentRangeNode)
- return ((DocumentRangeNode) o).getTypeCode();
- }
- return 0;
- }
- }
-
- class DiffViewerContentProvider implements ITreeContentProvider {
-
- public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
- }
-
- public boolean isDeleted(Object element) {
- return false;
- }
-
- public void dispose() {
- inputChanged(DiffTreeViewer.this, getInput(), null);
- }
-
- public Object getParent(Object element) {
- if (element instanceof IDiffElement)
- return ((IDiffElement)element).getParent();
- return null;
- }
-
- public final boolean hasChildren(Object element) {
- if (element instanceof IDiffContainer)
- return ((IDiffContainer)element).hasChildren();
- return false;
- }
-
- public final Object[] getChildren(Object element) {
- if (element instanceof IDiffContainer)
- return ((IDiffContainer)element).getChildren();
- return new Object[0];
- }
-
- public Object[] getElements(Object element) {
- return getChildren(element);
- }
- }
-
- /*
- * Takes care of swapping left and right if fLeftIsLocal
- * is true.
- */
- class DiffViewerLabelProvider extends LabelProvider {
-
- public String getText(Object element) {
-
- if (element instanceof IDiffElement)
- return ((IDiffElement)element).getName();
-
- return Utilities.getString(fBundle, "defaultLabel"); //$NON-NLS-1$
- }
-
- public Image getImage(Object element) {
- if (element instanceof IDiffElement) {
- IDiffElement input= (IDiffElement) element;
-
- int kind= input.getKind();
- if (fLeftIsLocal) {
- switch (kind & Differencer.DIRECTION_MASK) {
- case Differencer.LEFT:
- kind= (kind &~ Differencer.LEFT) | Differencer.RIGHT;
- break;
- case Differencer.RIGHT:
- kind= (kind &~ Differencer.RIGHT) | Differencer.LEFT;
- break;
- }
- }
-
- return fCompareConfiguration.getImage(input.getImage(), kind);
- }
- return null;
- }
- }
-
- static class FilterSame extends ViewerFilter {
- public boolean select(Viewer viewer, Object parentElement, Object element) {
- if (element instanceof IDiffElement)
- return (((IDiffElement)element).getKind() & Differencer.PSEUDO_CONFLICT) == 0;
- return true;
- }
- public boolean isFilterProperty(Object element, Object property) {
- return false;
- }
- }
-
- private ResourceBundle fBundle;
- private CompareConfiguration fCompareConfiguration;
- /* package */ boolean fLeftIsLocal;
- private ViewerFilter fViewerFilter;
- private IPropertyChangeListener fPropertyChangeListener;
- private IPropertyChangeListener fPreferenceChangeListener;
-
- private Action fCopyLeftToRightAction;
- private Action fCopyRightToLeftAction;
- private Action fNextAction;
- private Action fPreviousAction;
- private Action fEmptyMenuAction;
- private Action fExpandAllAction;
-
- /**
- * Creates a new viewer for the given SWT tree control with the specified configuration.
- *
- * @param tree the tree control
- * @param configuration the configuration for this viewer
- */
- public DiffTreeViewer(Tree tree, CompareConfiguration configuration) {
- super(tree);
- initialize(configuration);
- }
-
- /**
- * Creates a new viewer under the given SWT parent and with the specified configuration.
- *
- * @param parent the SWT control under which to create the viewer
- * @param configuration the configuration for this viewer
- */
- public DiffTreeViewer(Composite parent, CompareConfiguration configuration) {
- super(new Tree(parent, SWT.MULTI));
- initialize(configuration);
- }
-
- private void initialize(CompareConfiguration configuration) {
-
- Control tree= getControl();
-
- CompareNavigator.hookNavigation(tree);
-
- INavigatable nav= new INavigatable() {
- public boolean gotoDifference(boolean next) {
- return internalNavigate(next);
- }
- };
- tree.setData(INavigatable.NAVIGATOR_PROPERTY, nav);
-
- fLeftIsLocal= Utilities.getBoolean(configuration, "LEFT_IS_LOCAL", false); //$NON-NLS-1$
-
- tree.setData(CompareUI.COMPARE_VIEWER_TITLE, getTitle());
-
- Composite parent= tree.getParent();
-
- fBundle= ResourceBundle.getBundle("org.eclipse.compare.structuremergeviewer.DiffTreeViewerResources"); //$NON-NLS-1$
-
- // register for notification with the CompareConfiguration
- fCompareConfiguration= configuration;
- if (fCompareConfiguration != null) {
- fPropertyChangeListener= new IPropertyChangeListener() {
- public void propertyChange(PropertyChangeEvent event) {
- DiffTreeViewer.this.propertyChange(event);
- }
- };
- fCompareConfiguration.addPropertyChangeListener(fPropertyChangeListener);
- }
-
- // register for notification with the Compare plugin's PreferenceStore
- fPreferenceChangeListener= new IPropertyChangeListener() {
- public void propertyChange(PropertyChangeEvent event) {
- if (event.getProperty().equals(ComparePreferencePage.SHOW_PSEUDO_CONFLICTS))
- syncShowPseudoConflictFilter();
- }
- };
- IPreferenceStore ps= CompareUIPlugin.getDefault().getPreferenceStore();
- if (ps != null)
- ps.addPropertyChangeListener(fPreferenceChangeListener);
-
-
- setContentProvider(new DiffViewerContentProvider());
- setLabelProvider(new DiffViewerLabelProvider());
-
- addSelectionChangedListener(
- new ISelectionChangedListener() {
- public void selectionChanged(SelectionChangedEvent se) {
- updateActions();
- }
- }
- );
-
- syncShowPseudoConflictFilter();
-
- setSorter(new DiffViewerSorter());
-
- ToolBarManager tbm= CompareViewerSwitchingPane.getToolBarManager(parent);
- if (tbm != null) {
- tbm.removeAll();
-
- tbm.add(new Separator("merge")); //$NON-NLS-1$
- tbm.add(new Separator("modes")); //$NON-NLS-1$
- tbm.add(new Separator("navigation")); //$NON-NLS-1$
-
- createToolItems(tbm);
- updateActions();
-
- tbm.update(true);
- }
-
- MenuManager mm= new MenuManager();
- mm.setRemoveAllWhenShown(true);
- mm.addMenuListener(
- new IMenuListener() {
- public void menuAboutToShow(IMenuManager mm) {
- fillContextMenu(mm);
- if (mm.isEmpty()) {
- if (fEmptyMenuAction == null) {
- fEmptyMenuAction=
- new Action(Utilities.getString(fBundle, "emptyMenuItem")) {}; //$NON-NLS-1$
- fEmptyMenuAction.setEnabled(false);
- }
- mm.add(fEmptyMenuAction);
- }
- }
- }
- );
- tree.setMenu(mm.createContextMenu(tree));
- }
-
- /**
- * Returns the viewer's name.
- *
- * @return the viewer's name
- */
- public String getTitle() {
- String title= Utilities.getString(fBundle, "title", null); //$NON-NLS-1$
- if (title == null)
- title= Utilities.getString("DiffTreeViewer.title"); //$NON-NLS-1$
- return title;
- }
-
- /**
- * Returns the resource bundle.
- *
- * @return the viewer's resource bundle
- */
- protected ResourceBundle getBundle() {
- return fBundle;
- }
-
- /**
- * Returns the compare configuration of this viewer.
- *
- * @return the compare configuration of this viewer
- */
- public CompareConfiguration getCompareConfiguration() {
- return fCompareConfiguration;
- }
-
- /**
- * Called on the viewer disposal.
- * Unregisters from the compare configuration.
- * Clients may extend if they have to do additional cleanup.
- */
- protected void handleDispose(DisposeEvent event) {
-
- if (fPreferenceChangeListener != null) {
- IPreferenceStore ps= CompareUIPlugin.getDefault().getPreferenceStore();
- if (ps != null)
- ps.removePropertyChangeListener(fPreferenceChangeListener);
- fPreferenceChangeListener= null;
- }
-
- if (fCompareConfiguration != null) {
- if (fPropertyChangeListener != null)
- fCompareConfiguration.removePropertyChangeListener(fPropertyChangeListener);
- fCompareConfiguration= null;
- }
- fPropertyChangeListener= null;
-
- super.handleDispose(event);
- }
-
- /**
- * Tracks property changes of the configuration object.
- * Clients may extend to track their own property changes.
- */
- protected void propertyChange(PropertyChangeEvent event) {
- }
-
- protected void inputChanged(Object in, Object oldInput) {
- super.inputChanged(in, oldInput);
-
- if (in != oldInput) {
- initialSelection();
- updateActions();
- }
- }
-
- /**
- * This hook method is called from within <code>inputChanged</code>
- * after a new input has been set but before any controls are updated.
- * This default implementation calls <code>navigate(true)<code>
- * to select and expand the first leaf node.
- * Clients can override this method and are free to decide whether
- * they want to call the inherited method.
- */
- protected void initialSelection() {
- navigate(true);
- }
-
- /**
- * Overridden to avoid expanding <code>DiffNode</code>s that shouldn't expand
- * (i.e. where the <code>dontExpand</code> method returns <code>true</code>).
- */
- protected void internalExpandToLevel(Widget node, int level) {
-
- Object data= node.getData();
-
- if (dontExpand(data))
- return;
-
- super.internalExpandToLevel(node, level);
- }
-
- protected boolean dontExpand(Object o) {
- return o instanceof DiffNode && ((DiffNode)o).dontExpand();
- }
-
- //---- merge action support
-
- /**
- * This factory method is called after the viewer's controls have been created.
- * It installs four actions in the given <code>ToolBarManager</code>. Two actions
- * allow for copying one side of a <code>DiffNode</code> to the other side.
- * Two other actions are for navigating from one node to the next (previous).
- * <p>
- * Clients can override this method and are free to decide whether they want to call
- * the inherited method.
- *
- * @param toolbarManager the toolbar manager for which to add the actions
- */
- protected void createToolItems(ToolBarManager toolbarManager) {
-
-// fCopyLeftToRightAction= new Action() {
-// public void run() {
-// copySelected(true);
-// }
-// };
-// Utilities.initAction(fCopyLeftToRightAction, fBundle, "action.TakeLeft.");
-// toolbarManager.appendToGroup("merge", fCopyLeftToRightAction);
-
-// fCopyRightToLeftAction= new Action() {
-// public void run() {
-// copySelected(false);
-// }
-// };
-// Utilities.initAction(fCopyRightToLeftAction, fBundle, "action.TakeRight.");
-// toolbarManager.appendToGroup("merge", fCopyRightToLeftAction);
-
- fNextAction= new Action() {
- public void run() {
- navigate(true);
- }
- };
- Utilities.initAction(fNextAction, fBundle, "action.NextDiff."); //$NON-NLS-1$
- toolbarManager.appendToGroup("navigation", fNextAction); //$NON-NLS-1$
-
- fPreviousAction= new Action() {
- public void run() {
- navigate(false);
- }
- };
- Utilities.initAction(fPreviousAction, fBundle, "action.PrevDiff."); //$NON-NLS-1$
- toolbarManager.appendToGroup("navigation", fPreviousAction); //$NON-NLS-1$
- }
-
- /**
- * This method is called to add actions to the viewer's context menu.
- * It installs actions for expanding tree nodes, copying one side of a <code>DiffNode</code> to the other side.
- * Clients can override this method and are free to decide whether they want to call
- * the inherited method.
- *
- * @param manager the menu manager for which to add the actions
- */
- protected void fillContextMenu(IMenuManager manager) {
- if (fExpandAllAction == null) {
- fExpandAllAction= new Action() {
- public void run() {
- expandSelection();
- }
- };
- Utilities.initAction(fExpandAllAction, fBundle, "action.ExpandAll."); //$NON-NLS-1$
- }
- manager.add(fExpandAllAction);
-
- if (fCopyLeftToRightAction != null)
- manager.add(fCopyLeftToRightAction);
- if (fCopyRightToLeftAction != null)
- manager.add(fCopyRightToLeftAction);
- }
-
- /**
- * Expands to infinity all items in the selection.
- */
- protected void expandSelection() {
- ISelection selection= getSelection();
- if (selection instanceof IStructuredSelection) {
- Iterator elements= ((IStructuredSelection)selection).iterator();
- while (elements.hasNext()) {
- Object next= elements.next();
- expandToLevel(next, ALL_LEVELS);
- }
- }
- }
-
- /**
- * Copies one side of all <code>DiffNode</code>s in the current selection to the other side.
- * Called from the (internal) actions for copying the sides of a <code>DiffNode</code>.
- * Clients may override.
- *
- * @param leftToRight if <code>true</code> the left side is copied to the right side.
- * If <code>false</code> the right side is copied to the left side
- */
- protected void copySelected(boolean leftToRight) {
- ISelection selection= getSelection();
- if (selection instanceof IStructuredSelection) {
- Iterator e= ((IStructuredSelection) selection).iterator();
- while (e.hasNext()) {
- Object element= e.next();
- if (element instanceof ICompareInput)
- copyOne((ICompareInput) element, leftToRight);
- }
- }
- }
-
- /**
- * Called to copy one side of the given node to the other.
- * This default implementation delegates the call to <code>ICompareInput.copy(...)</code>.
- * Clients may override.
- *
- * @param leftToRight if <code>true</code> the left side is copied to the right side.
- * If <code>false</code> the right side is copied to the left side
- */
- protected void copyOne(ICompareInput node, boolean leftToRight) {
-
- node.copy(leftToRight);
-
- // update node's image
- update(new Object[] { node }, null);
- }
-
- /**
- * Selects the next (or previous) node of the current selection.
- * If there is no current selection the first (last) node in the tree is selected.
- * Wraps around at end or beginning.
- * Clients may override.
- *
- * @param next if <code>true</code> the next node is selected, otherwise the previous node
- */
- protected void navigate(boolean next) {
- internalNavigate(next);
- }
-
- //---- private
-
- /**
- * Selects the next (or previous) node of the current selection.
- * If there is no current selection the first (last) node in the tree is selected.
- * Wraps around at end or beginning.
- * Clients may override.
- *
- * @param next if <code>true</code> the next node is selected, otherwise the previous node
- * @return <code>true</code> if at end (or beginning)
- */
- private boolean internalNavigate(boolean next) {
-
- Control c= getControl();
- if (!(c instanceof Tree))
- return false;
-
- Tree tree= (Tree) c;
- TreeItem item= null;
- TreeItem children[]= tree.getSelection();
- if (children != null && children.length > 0)
- item= children[0];
- if (item == null) {
- children= tree.getItems();
- if (children != null && children.length > 0) {
- item= children[0];
- if (item != null && item.getItemCount() <= 0) {
- internalSetSelection(item);
- return false;
- }
- }
- }
-
- while (true) {
- item= findNextPrev(item, next);
- if (item == null)
- break;
- if (item.getItemCount() <= 0)
- break;
- }
-
- if (item != null) {
- internalSetSelection(item);
- return false;
- }
- return true;
- }
-
- private TreeItem findNextPrev(TreeItem item, boolean next) {
-
- if (item == null)
- return null;
-
- TreeItem children[]= null;
-
- if (!next) {
-
- TreeItem parent= item.getParentItem();
- if (parent != null)
- children= parent.getItems();
- else
- children= item.getParent().getItems();
-
- if (children != null && children.length > 0) {
- // goto previous child
- int index= 0;
- for (; index < children.length; index++)
- if (children[index] == item)
- break;
-
- if (index > 0) {
-
- item= children[index-1];
-
- while (true) {
- createChildren(item);
- int n= item.getItemCount();
- if (n <= 0)
- break;
-
- item.setExpanded(true);
- item= item.getItems()[n-1];
- }
-
- // previous
- return item;
- }
- }
-
- // go up
- return parent;
-
- } else {
- item.setExpanded(true);
- createChildren(item);
-
- if (item.getItemCount() > 0) {
- // has children: go down
- children= item.getItems();
- return children[0];
- }
-
- while (item != null) {
- children= null;
- TreeItem parent= item.getParentItem();
- if (parent != null)
- children= parent.getItems();
- else
- children= item.getParent().getItems();
-
- if (children != null && children.length > 0) {
- // goto next child
- int index= 0;
- for (; index < children.length; index++)
- if (children[index] == item)
- break;
-
- if (index < children.length-1) {
- // next
- return children[index+1];
- }
- }
-
- // go up
- item= parent;
- }
- }
-
- return item;
- }
-
- private void internalSetSelection(TreeItem ti) {
- if (ti != null) {
- Object data= ti.getData();
- if (data != null)
- setSelection(new StructuredSelection(data), true);
- }
- }
-
- private void syncShowPseudoConflictFilter() {
-
- IPreferenceStore ps= CompareUIPlugin.getDefault().getPreferenceStore();
- boolean showPseudoConflicts= ps.getBoolean(ComparePreferencePage.SHOW_PSEUDO_CONFLICTS);
-
- Control tree= getControl();
- if (!tree.isDisposed()) {
- if (showPseudoConflicts) {
- if (fViewerFilter != null) {
- removeFilter(fViewerFilter);
- }
- } else {
- if (fViewerFilter == null)
- fViewerFilter= new FilterSame();
- addFilter(fViewerFilter);
- }
- }
- }
-
- private final boolean isEditable(Object element, boolean left) {
- if (element instanceof ICompareInput) {
- ICompareInput diff= (ICompareInput) element;
- Object side= left ? diff.getLeft() : diff.getRight();
- if (side == null && diff instanceof IDiffElement) {
- IDiffContainer container= ((IDiffElement)diff).getParent();
- if (container instanceof ICompareInput) {
- ICompareInput parent= (ICompareInput) container;
- side= left ? parent.getLeft() : parent.getRight();
- }
- }
- if (side instanceof IEditableContent)
- return ((IEditableContent) side).isEditable();
- }
- return false;
- }
-
- private void updateActions() {
- int leftToRight= 0;
- int rightToLeft= 0;
- ISelection selection= getSelection();
- if (selection instanceof IStructuredSelection) {
- IStructuredSelection ss= (IStructuredSelection) selection;
- Iterator e= ss.iterator();
- while (e.hasNext()) {
- Object element= e.next();
- if (element instanceof ICompareInput) {
- if (isEditable(element, false))
- leftToRight++;
- if (isEditable(element, true))
- rightToLeft++;
- if (leftToRight > 0 && rightToLeft > 0)
- break;
- }
- }
- }
- if (fCopyLeftToRightAction != null)
- fCopyLeftToRightAction.setEnabled(leftToRight > 0);
- if (fCopyRightToLeftAction != null)
- fCopyRightToLeftAction.setEnabled(rightToLeft > 0);
- }
-}
-
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