Add initial version of regions to source control

[simantics/district.git] / org.simantics.district.region.ui / src / org / simantics / district / region / ui / CreateRegionFromSelection.java

diff --git a/org.simantics.district.region.ui/src/org/simantics/district/region/ui/CreateRegionFromSelection.java b/org.simantics.district.region.ui/src/org/simantics/district/region/ui/CreateRegionFromSelection.java
new file mode 100644 (file)
index 0000000..33759e2
--- /dev/null
+++ b/org.simantics.district.region.ui/src/org/simantics/district/region/ui/CreateRegionFromSelection.java
@@ -0,0 +1,84 @@
+package org.simantics.district.region.ui;
+
+import java.awt.geom.Rectangle2D;
+import java.util.Set;
+
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.e4.core.di.annotations.CanExecute;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.ui.workbench.modeling.ESelectionService;
+import org.eclipse.jface.dialogs.InputDialog;
+import org.eclipse.jface.window.Window;
+import org.eclipse.ui.IEditorPart;
+import org.eclipse.ui.progress.UIJob;
+import org.simantics.Simantics;
+import org.simantics.db.Resource;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.request.Write;
+import org.simantics.diagram.ui.DiagramModelHints;
+import org.simantics.district.region.DiagramRegions;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.g2d.diagram.participant.Selection;
+import org.simantics.g2d.element.ElementUtils;
+import org.simantics.g2d.element.IElement;
+import org.simantics.utils.ui.workbench.WorkbenchUtils;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class CreateRegionFromSelection {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(CreateRegionFromSelection.class);
+
+    @CanExecute
+    public boolean canExecute(ESelectionService selectionService) {
+        return selectionService.getSelection() != null;
+    }
+
+    @Execute
+    public void createRegionFromSelection() {
+        IEditorPart activeEditor = WorkbenchUtils.getActiveEditor();
+        ICanvasContext context = activeEditor.getAdapter(ICanvasContext.class);
+        if (context != null) {
+            IDiagram diagram = activeEditor.getAdapter(IDiagram.class);
+            if (diagram != null) {
+                Resource diagramResource = diagram.getHint(DiagramModelHints.KEY_DIAGRAM_RESOURCE);
+                Selection selection = context.getAtMostOneItemOfClass(Selection.class);
+                Set<IElement> allSelections = selection.getAllSelections();
+                Rectangle2D surroundingElementBoundsOnDiagram = ElementUtils.getSurroundingElementBoundsOnDiagram(allSelections);
+                double[] coordinates = DiagramRegions.shapeToCoordinates(surroundingElementBoundsOnDiagram);
+                
+                UIJob job = new UIJob("Creating new region for diagram") {
+                    
+                    @Override
+                    public IStatus runInUIThread(IProgressMonitor monitor) {
+                        InputDialog d = new InputDialog(getDisplay().getActiveShell(), "Enter label for region", "Enter region label", "", null);
+                        int status = d.open();
+                        if (status == Window.OK) {
+                            String label = d.getValue();
+                            Simantics.getSession().asyncRequest(new Write() {
+                                
+                                @Override
+                                public void perform(WriteGraph graph) throws DatabaseException {
+                                    DiagramRegions.createRegionForDiagram(graph, diagramResource, label, coordinates);
+                                }
+                            });
+                        } else {
+                            
+                        }
+                        return Status.OK_STATUS;
+                    }
+                };
+                job.setUser(true);
+                job.schedule();
+            } else {
+                LOGGER.warn("No diagram available for active editor {}", activeEditor);
+            }
+        } else {
+            LOGGER.warn("No CanvasContext available for active editor {}", activeEditor);
+        }
+    }
+}