Layer removal with delete key instead of on-screen button

gitlab simantics/platform#585

Change-Id: I9b33c995cec4fc4f3fc342e09e1980d885a9ea4b

diff --git a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramLayersPage.java b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramLayersPage.java
index 3bce16ccb99da72f42c7a4fd0197c90e2cc676dd..bfbfacbc72aa1e0bed31023000fca148726b9806 100644 (file)
--- a/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramLayersPage.java
+++ b/bundles/org.simantics.modeling.ui/src/org/simantics/modeling/ui/diagramEditor/DiagramLayersPage.java
@@ -26,7 +26,6 @@ import org.eclipse.jface.viewers.ICheckStateProvider;
 import org.eclipse.jface.viewers.ISelection;
 import org.eclipse.jface.viewers.ISelectionChangedListener;
 import org.eclipse.jface.viewers.ITreeContentProvider;
-import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.jface.viewers.ViewerCell;
@@ -40,6 +39,8 @@ import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.GC;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
@@ -382,73 +383,12 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
     private void initialize2(ILayersEditor layers, IDiagram diagram) {
         layers.addLayersListener(layersListener);
 
-        Button addButton = new Button(composite, SWT.NONE);
-        addButton.setText(Messages.DiagramLayersPage_New);
-        addButton.setToolTipText(Messages.DiagramLayersPage_NewTT);
-        addButton.addSelectionListener(new SelectionListener() {
-
-            @Override
-            public void widgetSelected(SelectionEvent e) {
-                String name = findFreshName(layers, Messages.DiagramLayersPage_NewRole);
-                SimpleLayer layer = new SimpleLayer(name);
-                layers.addLayer(layer);
-                layers.activate(layer);
-            }
-
-            @Override
-            public void widgetDefaultSelected(SelectionEvent e) {
-                widgetSelected(e);
-            }
-
-        });
-
-        final Button removeButton = new Button(composite, SWT.NONE);
-        removeButton.setText(Messages.DiagramLayersPage_Remove);
-        removeButton.setToolTipText(Messages.DiagramLayersPage_RemoveTT);
-        removeButton.addSelectionListener(new SelectionListener() {
-            @Override
-            public void widgetSelected(SelectionEvent e) {
-                TreeItem[] items = viewer.getTree().getSelection();
-                if (items.length == 0)
-                    return;
-
-                TreeItem[] all = viewer.getTree().getItems();
-                int firstIndex = Arrays.indexOf(all, items[0]);
-                for (TreeItem item : items) {
-                    int index = Arrays.indexOf(all, item);
-                    all[index] = null;
-                    ILayer layer = (ILayer)item.getData();
-                    layers.removeLayer(layer);
-                }
-                int selectIndex = firstIndex - 1;
-                if (firstIndex == 0) {
-                    for (int i = firstIndex; i < all.length; ++i)
-                        if (all[i] != null) {
-                            selectIndex = i;
-                            break;
-                        }
-                }
-                if (selectIndex >= 0) {
-                    viewer.getTree().select(all[selectIndex]);
-                }
-                context.getThreadAccess().asyncExec(new Runnable() {
-
-                    @Override
-                    public void run() {
-                        if(context.isDisposed()) return;
-                        context.getContentContext().setDirty();
-                    }
-
-                });
-            }
-
-            @Override
-            public void widgetDefaultSelected(SelectionEvent e) {
-                widgetSelected(e);
-            }
-        });
-
+        GridData gridData = new GridData(GridData.FILL, GridData.FILL, true, false);
+        composite.setLayoutData(gridData);
+        composite.setLayout(new GridLayout(3, false));
+        
         ignoreVisibilityButton = new Button(composite, SWT.CHECK);
+        ignoreVisibilityButton.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1));
         ignoreVisibilityButton.setText(TEXT_IGNORE_VISIBILITY_SETTINGS);
         ignoreVisibilityButton.setToolTipText(TOOLTIP_IGNORE_VISIBILITY_SETTINGS);
         ignoreVisibilityButton.setSelection(layers.getIgnoreVisibilitySettings());
@@ -476,6 +416,7 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
         });
 
         ignoreFocusButton = new Button(composite, SWT.CHECK);
+        ignoreFocusButton.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1));
         ignoreFocusButton.setText(TEXT_IGNORE_FOCUS_SETTINGS);
         ignoreFocusButton.setToolTipText(TOOLTIP_IGNORE_FOCUS_SETTINGS);
         ignoreFocusButton.setSelection(layers.getIgnoreFocusSettings());
@@ -502,6 +443,27 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
 
         });
 
+        Button addButton = new Button(composite, SWT.NONE);
+        addButton.setLayoutData(new GridData(SWT.RIGHT, SWT.CENTER, false, false, 1, 1));
+        addButton.setText(Messages.DiagramLayersPage_New);
+        addButton.setToolTipText(Messages.DiagramLayersPage_NewTT);
+        addButton.addSelectionListener(new SelectionListener() {
+
+            @Override
+            public void widgetSelected(SelectionEvent e) {
+                String name = findFreshName(layers, Messages.DiagramLayersPage_NewRole);
+                SimpleLayer layer = new SimpleLayer(name);
+                layers.addLayer(layer);
+                layers.activate(layer);
+            }
+
+            @Override
+            public void widgetDefaultSelected(SelectionEvent e) {
+                widgetSelected(e);
+            }
+
+        });
+
         viewer = new CheckboxTreeViewer(composite, SWT.BORDER | SWT.FULL_SELECTION );
 
         GridDataFactory.fillDefaults().grab(true, true).span(4, 1).applyTo(viewer.getControl());
@@ -596,6 +558,8 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
                         return;
 
                     startEditing(layer, item);
+                } else if (event.keyCode == SWT.DEL) {
+                    removeSelectedLayers();
                 }
             }
         });
@@ -672,18 +636,6 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
             }
         });
 
-        viewer.addSelectionChangedListener(new ISelectionChangedListener() {
-            @Override
-            public void selectionChanged(SelectionChangedEvent event) {
-                ISelection s = event.getSelection();
-                if (s.isEmpty()) {
-                    removeButton.setEnabled(false);
-                } else {
-                    removeButton.setEnabled(true);
-                }
-            }
-        });
-
         viewer.setContentProvider(new ITreeContentProvider(){
             @Override
             public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
@@ -767,6 +719,41 @@ public class DiagramLayersPage extends Page implements ILayersViewPage {
     public void setSelection(ISelection selection) {
     }
 
+    private void removeSelectedLayers() {
+        TreeItem[] items = viewer.getTree().getSelection();
+        if (items.length == 0)
+            return;
+
+        TreeItem[] all = viewer.getTree().getItems();
+        int firstIndex = Arrays.indexOf(all, items[0]);
+        for (TreeItem item : items) {
+            int index = Arrays.indexOf(all, item);
+            all[index] = null;
+            ILayer layer = (ILayer)item.getData();
+            layers.removeLayer(layer);
+        }
+        int selectIndex = firstIndex - 1;
+        if (firstIndex == 0) {
+            for (int i = firstIndex; i < all.length; ++i)
+                if (all[i] != null) {
+                    selectIndex = i;
+                    break;
+                }
+        }
+        if (selectIndex >= 0) {
+            viewer.getTree().select(all[selectIndex]);
+        }
+        context.getThreadAccess().asyncExec(new Runnable() {
+
+            @Override
+            public void run() {
+                if(context.isDisposed()) return;
+                context.getContentContext().setDirty();
+            }
+
+        });
+    }
+
     private boolean startEditing(final ILayer layer, final TreeItem item/*, final int columnIndex*/) {
 
         //        Column column = columns[columnIndex];