-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.g2d.diagram.participant;\r
-\r
-import java.awt.geom.Point2D;\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.Collections;\r
-import java.util.Comparator;\r
-import java.util.HashMap;\r
-import java.util.List;\r
-import java.util.Map;\r
-\r
-import org.simantics.g2d.canvas.IMouseCaptureContext;\r
-import org.simantics.g2d.canvas.IMouseCaptureHandle;\r
-import org.simantics.g2d.canvas.IMouseCaptureHandleListener;\r
-import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;\r
-import org.simantics.g2d.diagram.handler.PickContext;\r
-import org.simantics.g2d.diagram.handler.PickRequest;\r
-import org.simantics.g2d.diagram.handler.PickRequest.PickSorter;\r
-import org.simantics.g2d.element.IElement;\r
-import org.simantics.g2d.element.handler.HandleMouseEvent;\r
-import org.simantics.g2d.participant.TransformUtil;\r
-import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseEnterEvent;\r
-import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;\r
-\r
-/**\r
- * This participant sends mouse events to elements that have a {@link HandleMouseEvent}\r
- * handler.\r
- * \r
- * @see HandleMouseEvent\r
- * @author Toni Kalajainen\r
- */\r
-public class ElementInteractor extends AbstractDiagramParticipant {\r
-\r
- @Dependency PickContext pick;\r
- @Dependency TransformUtil util;\r
-\r
- private PickSorter pickSorter;\r
- \r
- public static final int INTERACTOR_PRIORITY = Integer.MAX_VALUE-1;\r
-\r
- Map<Integer, ElementMouseCaptureHandle> mouseCaptureMap =\r
- new HashMap<Integer, ElementMouseCaptureHandle>();\r
- Map<Integer, IElement> mouseFocus = new HashMap<Integer, IElement>();\r
-\r
- public ElementInteractor() {\r
- }\r
-\r
- public ElementInteractor(PickSorter pickSorter) {\r
- this.pickSorter = pickSorter;\r
- }\r
-\r
- private class ElementMouseCaptureHandle implements IMouseCaptureHandle {\r
- IMouseCaptureHandle origHandle;\r
- IElement element;\r
- @Override\r
- public void addMouseCaptureHandleListener(IMouseCaptureHandleListener listener) {\r
- origHandle.addMouseCaptureHandleListener(listener);\r
- }\r
- @Override\r
- public int mouseId() {\r
- return origHandle.mouseId();\r
- }\r
- @Override\r
- public void release() {\r
- mouseCaptureMap.remove(origHandle.mouseId());\r
- origHandle.release();\r
- }\r
- @Override\r
- public void removeMouseCaptureHandleListener(IMouseCaptureHandleListener listener) {\r
- origHandle.removeMouseCaptureHandleListener(listener);\r
- }\r
- }\r
-\r
- /**\r
- * Capture mouse events to an element.\r
- * @param element\r
- * @param mouseId\r
- * @return capture handle or null if capture is not available in the context\r
- */\r
- public IMouseCaptureHandle captureMouse(IElement element, int mouseId)\r
- {\r
- // Release old capture\r
- ElementMouseCaptureHandle prevHnd = mouseCaptureMap.get(mouseId);\r
- if (prevHnd!=null) {\r
- prevHnd.release();\r
- mouseCaptureMap.remove(mouseId);\r
- }\r
-\r
- // Check that capture is available\r
- IMouseCaptureContext mcc = getContext().getMouseCaptureContext();\r
- if (mcc==null) return null;\r
-\r
- // make new capture\r
- ElementMouseCaptureHandle hnd = new ElementMouseCaptureHandle();\r
- hnd.origHandle = mcc.captureMouse(mouseId);\r
- hnd.element = element;\r
- mouseCaptureMap.put(mouseId, hnd);\r
- return hnd;\r
- }\r
-\r
- /**\r
- * Get all grabs of an element\r
- * @param e element\r
- * @return\r
- */\r
- public Collection<IMouseCaptureHandle> getGrabsOfElement(IElement e)\r
- {\r
- List<IMouseCaptureHandle> result = new ArrayList<IMouseCaptureHandle>();\r
- for (ElementMouseCaptureHandle eh : mouseCaptureMap.values())\r
- if (eh.element == e)\r
- result.add(eh);\r
- return result;\r
- }\r
-\r
- public IMouseCaptureHandle getGrabOfElement(IElement e, int mouseId)\r
- {\r
- for (ElementMouseCaptureHandle eh : mouseCaptureMap.values())\r
- if (eh.element == e && eh.mouseId() == mouseId)\r
- return eh;\r
- return null;\r
- }\r
-\r
- @EventHandler(priority = INTERACTOR_PRIORITY)\r
- public boolean handleMouseEvent(MouseEvent me) {\r
- assertDependencies();\r
-\r
- // Determine element for capture\r
- IElement currentFocus = null;\r
- ElementMouseCaptureHandle hnd = mouseCaptureMap.get(me.mouseId);\r
- // Mouse is captured\r
- if (hnd != null) {\r
- currentFocus = hnd.element;\r
- //System.out.println("capture: " + hnd);\r
- } else {\r
- // Pick element under the mouse\r
- Point2D controlPos = me.controlPosition;\r
- Point2D diagramPos = util.controlToCanvas(controlPos, null);\r
- PickRequest req = new PickRequest(diagramPos);\r
- req.pickSorter = pickSorter;\r
- //req.pickSorter = PickRequest.PickSorter.CONNECTIONS_LAST;\r
- ArrayList<IElement> result = new ArrayList<IElement>();\r
- pick.pick(diagram, req, result);\r
- if (result.size()>0) {\r
- _sortByOrder(result);\r
- currentFocus = result.get(result.size()-1);\r
- //System.out.println("Focus " + currentFocus + " " + result.size());\r
- }\r
-\r
- }\r
-\r
- // Send enter & exit events to elements\r
- IElement prevFocus = mouseFocus.get(me.mouseId);\r
- // Focus has changed\r
- if (currentFocus!=prevFocus) {\r
- if (prevFocus!=null) {\r
- MouseExitEvent exit = new MouseExitEvent(getContext(), me.time, me.mouseId, me.buttons, me.stateMask, me.controlPosition, me.screenPosition);\r
- sendElementMouseEvent(prevFocus, exit);\r
- }\r
- if (currentFocus!=null) {\r
- MouseEnterEvent enter = new MouseEnterEvent(getContext(), me.time, me.mouseId, me.buttons, me.stateMask, me.controlPosition, me.screenPosition);\r
- sendElementMouseEvent(currentFocus, enter);\r
- }\r
- }\r
- mouseFocus.put(me.mouseId, currentFocus);\r
-\r
- // Send event to all handlers\r
- if (currentFocus==null) return false;\r
- //return sendElementMouseEvent(currentFocus, me);\r
- sendElementMouseEvent(currentFocus, me);\r
- return false;\r
- }\r
-\r
- private boolean sendElementMouseEvent(IElement e, MouseEvent me)\r
- {\r
- //System.out.println("sendElementMouseEvent(" + e + ", " + me + ")");\r
- // FIXME: eating events here will cause DND to not work. Workaround is to not eat the events. Need proper fix.\r
- for (HandleMouseEvent eh : e.getElementClass().getItemsByClass(HandleMouseEvent.class))\r
- {\r
- if (eh.handleMouseEvent(e, getContext(), me)) return false;\r
- }\r
- return false;\r
- }\r
-\r
- // copy-paste from ZOrderhandler (list is reverse, so element on top is first)\r
- void _sortByOrder(List<IElement> list)\r
- {\r
- List<IElement> elements = diagram.getElements();\r
- final Map<IElement, Integer> position = new HashMap<IElement, Integer>();\r
- for (IElement e : list)\r
- position.put(e, elements.indexOf(e));\r
- Comparator<IElement> c = new Comparator<IElement>() {\r
- @Override\r
- public int compare(IElement o1, IElement o2) {\r
- int pos1 = position.get(o1);\r
- int pos2 = position.get(o2);\r
- return pos1-pos2;\r
- }\r
- };\r
- Collections.sort(list, c);\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.g2d.diagram.participant;
+
+import java.awt.geom.Point2D;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Comparator;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import org.simantics.g2d.canvas.IMouseCaptureContext;
+import org.simantics.g2d.canvas.IMouseCaptureHandle;
+import org.simantics.g2d.canvas.IMouseCaptureHandleListener;
+import org.simantics.g2d.canvas.impl.DependencyReflection.Dependency;
+import org.simantics.g2d.diagram.handler.PickContext;
+import org.simantics.g2d.diagram.handler.PickRequest;
+import org.simantics.g2d.diagram.handler.PickRequest.PickSorter;
+import org.simantics.g2d.element.IElement;
+import org.simantics.g2d.element.handler.HandleMouseEvent;
+import org.simantics.g2d.participant.TransformUtil;
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
+import org.simantics.scenegraph.g2d.events.MouseEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseEnterEvent;
+import org.simantics.scenegraph.g2d.events.MouseEvent.MouseExitEvent;
+
+/**
+ * This participant sends mouse events to elements that have a {@link HandleMouseEvent}
+ * handler.
+ *
+ * @see HandleMouseEvent
+ * @author Toni Kalajainen
+ */
+public class ElementInteractor extends AbstractDiagramParticipant {
+
+ @Dependency PickContext pick;
+ @Dependency TransformUtil util;
+
+ private PickSorter pickSorter;
+
+ public static final int INTERACTOR_PRIORITY = Integer.MAX_VALUE-1;
+
+ Map<Integer, ElementMouseCaptureHandle> mouseCaptureMap =
+ new HashMap<Integer, ElementMouseCaptureHandle>();
+ Map<Integer, IElement> mouseFocus = new HashMap<Integer, IElement>();
+
+ public ElementInteractor() {
+ }
+
+ public ElementInteractor(PickSorter pickSorter) {
+ this.pickSorter = pickSorter;
+ }
+
+ private class ElementMouseCaptureHandle implements IMouseCaptureHandle {
+ IMouseCaptureHandle origHandle;
+ IElement element;
+ @Override
+ public void addMouseCaptureHandleListener(IMouseCaptureHandleListener listener) {
+ origHandle.addMouseCaptureHandleListener(listener);
+ }
+ @Override
+ public int mouseId() {
+ return origHandle.mouseId();
+ }
+ @Override
+ public void release() {
+ mouseCaptureMap.remove(origHandle.mouseId());
+ origHandle.release();
+ }
+ @Override
+ public void removeMouseCaptureHandleListener(IMouseCaptureHandleListener listener) {
+ origHandle.removeMouseCaptureHandleListener(listener);
+ }
+ }
+
+ /**
+ * Capture mouse events to an element.
+ * @param element
+ * @param mouseId
+ * @return capture handle or null if capture is not available in the context
+ */
+ public IMouseCaptureHandle captureMouse(IElement element, int mouseId)
+ {
+ // Release old capture
+ ElementMouseCaptureHandle prevHnd = mouseCaptureMap.get(mouseId);
+ if (prevHnd!=null) {
+ prevHnd.release();
+ mouseCaptureMap.remove(mouseId);
+ }
+
+ // Check that capture is available
+ IMouseCaptureContext mcc = getContext().getMouseCaptureContext();
+ if (mcc==null) return null;
+
+ // make new capture
+ ElementMouseCaptureHandle hnd = new ElementMouseCaptureHandle();
+ hnd.origHandle = mcc.captureMouse(mouseId);
+ hnd.element = element;
+ mouseCaptureMap.put(mouseId, hnd);
+ return hnd;
+ }
+
+ /**
+ * Get all grabs of an element
+ * @param e element
+ * @return
+ */
+ public Collection<IMouseCaptureHandle> getGrabsOfElement(IElement e)
+ {
+ List<IMouseCaptureHandle> result = new ArrayList<IMouseCaptureHandle>();
+ for (ElementMouseCaptureHandle eh : mouseCaptureMap.values())
+ if (eh.element == e)
+ result.add(eh);
+ return result;
+ }
+
+ public IMouseCaptureHandle getGrabOfElement(IElement e, int mouseId)
+ {
+ for (ElementMouseCaptureHandle eh : mouseCaptureMap.values())
+ if (eh.element == e && eh.mouseId() == mouseId)
+ return eh;
+ return null;
+ }
+
+ @EventHandler(priority = INTERACTOR_PRIORITY)
+ public boolean handleMouseEvent(MouseEvent me) {
+ assertDependencies();
+
+ // Determine element for capture
+ IElement currentFocus = null;
+ ElementMouseCaptureHandle hnd = mouseCaptureMap.get(me.mouseId);
+ // Mouse is captured
+ if (hnd != null) {
+ currentFocus = hnd.element;
+ //System.out.println("capture: " + hnd);
+ } else {
+ // Pick element under the mouse
+ Point2D controlPos = me.controlPosition;
+ Point2D diagramPos = util.controlToCanvas(controlPos, null);
+ PickRequest req = new PickRequest(diagramPos);
+ req.pickSorter = pickSorter;
+ //req.pickSorter = PickRequest.PickSorter.CONNECTIONS_LAST;
+ ArrayList<IElement> result = new ArrayList<IElement>();
+ pick.pick(diagram, req, result);
+ if (result.size()>0) {
+ _sortByOrder(result);
+ currentFocus = result.get(result.size()-1);
+ //System.out.println("Focus " + currentFocus + " " + result.size());
+ }
+
+ }
+
+ // Send enter & exit events to elements
+ IElement prevFocus = mouseFocus.get(me.mouseId);
+ // Focus has changed
+ if (currentFocus!=prevFocus) {
+ if (prevFocus!=null) {
+ MouseExitEvent exit = new MouseExitEvent(getContext(), me.time, me.mouseId, me.buttons, me.stateMask, me.controlPosition, me.screenPosition);
+ sendElementMouseEvent(prevFocus, exit);
+ }
+ if (currentFocus!=null) {
+ MouseEnterEvent enter = new MouseEnterEvent(getContext(), me.time, me.mouseId, me.buttons, me.stateMask, me.controlPosition, me.screenPosition);
+ sendElementMouseEvent(currentFocus, enter);
+ }
+ }
+ mouseFocus.put(me.mouseId, currentFocus);
+
+ // Send event to all handlers
+ if (currentFocus==null) return false;
+ //return sendElementMouseEvent(currentFocus, me);
+ sendElementMouseEvent(currentFocus, me);
+ return false;
+ }
+
+ private boolean sendElementMouseEvent(IElement e, MouseEvent me)
+ {
+ //System.out.println("sendElementMouseEvent(" + e + ", " + me + ")");
+ // FIXME: eating events here will cause DND to not work. Workaround is to not eat the events. Need proper fix.
+ for (HandleMouseEvent eh : e.getElementClass().getItemsByClass(HandleMouseEvent.class))
+ {
+ if (eh.handleMouseEvent(e, getContext(), me)) return false;
+ }
+ return false;
+ }
+
+ // copy-paste from ZOrderhandler (list is reverse, so element on top is first)
+ void _sortByOrder(List<IElement> list)
+ {
+ List<IElement> elements = diagram.getElements();
+ final Map<IElement, Integer> position = new HashMap<IElement, Integer>();
+ for (IElement e : list)
+ position.put(e, elements.indexOf(e));
+ Comparator<IElement> c = new Comparator<IElement>() {
+ @Override
+ public int compare(IElement o1, IElement o2) {
+ int pos1 = position.get(o1);
+ int pos2 = position.get(o2);
+ return pos1-pos2;
+ }
+ };
+ Collections.sort(list, c);
+ }
+
+}
Code Review / simantics / platform.git / blobdiff