-/*******************************************************************************\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.utils;\r
-\r
-import java.util.function.Supplier;\r
-\r
-import org.simantics.g2d.canvas.Hints;\r
-import org.simantics.g2d.canvas.ICanvasContext;\r
-import org.simantics.g2d.diagram.DiagramHints;\r
-import org.simantics.g2d.diagram.IDiagram;\r
-import org.simantics.scenegraph.g2d.events.command.Command;\r
-import org.simantics.scenegraph.g2d.events.command.CommandEvent;\r
-import org.simantics.scenegraph.g2d.events.command.Commands;\r
-import org.simantics.utils.threads.IThreadWorkQueue;\r
-import org.simantics.utils.threads.ThreadUtils;\r
-\r
-/**\r
- * @author Toni Kalajainen\r
- * @author Tuukka Lehtonen\r
- */\r
-public class CanvasUtils {\r
-\r
- /**\r
- * Enqueue a command in the event queue of the specified canvas context.\r
- * \r
- * @param ctx queue context\r
- * @param commandId ID of the command to queue\r
- * \r
- * @see #sendCommand(ICanvasContext, Command)\r
- */\r
- public static void sendCommand(ICanvasContext ctx, String commandId)\r
- {\r
- sendCommand(ctx, new Command(commandId));\r
- }\r
-\r
- /**\r
- * Enqueue a command in the event queue of the specified canvas context.\r
- * \r
- * @param ctx queue context\r
- * @param cmd the command to queue\r
- */\r
- public static void sendCommand(ICanvasContext ctx, Command cmd)\r
- {\r
- CommandEvent e = new CommandEvent(ctx, System.currentTimeMillis(), cmd);\r
- ctx.getEventQueue().queueEvent(e);\r
- }\r
-\r
- /**\r
- * A utility for scheduling a zoom-to-fit operation when an Eclipse\r
- * workbench editor is initially opened.\r
- * \r
- * <p>\r
- * There are two asynchronous calls, first into the workbench (SWT) UI\r
- * thread and then into the canvas context thread. This will guarantee that\r
- * the parenting SWT control has been resized to its actual size instead of\r
- * the initial (0,0) size which widgets start out at. In order to perform a\r
- * zoom-to-fit operation we simply have to know the bounds of the parenting\r
- * control. Thus, we need to ensure that this information is available and\r
- * correct.\r
- * \r
- * @param swtThread\r
- * @param disposed\r
- * @param canvasContext\r
- * @param diagramToFit\r
- */\r
- public static void scheduleZoomToFit(IThreadWorkQueue swtThread, final Supplier<Boolean> disposed,\r
- final ICanvasContext canvasContext, final IDiagram diagramToFit)\r
- {\r
- scheduleZoomToFit(swtThread, disposed, canvasContext, diagramToFit, true);\r
- }\r
-\r
- /**\r
- * A utility for scheduling a zoom-to-fit operation when an Eclipse\r
- * workbench editor is initially opened.\r
- * \r
- * <p>\r
- * There are two asynchronous calls, first into the workbench (SWT) UI\r
- * thread and then into the canvas context thread. This will guarantee that\r
- * the parenting SWT control has been resized to its actual size instead of\r
- * the initial (0,0) size which widgets start out at. In order to perform a\r
- * zoom-to-fit operation we simply have to know the bounds of the parenting\r
- * control. Thus, we need to ensure that this information is available and\r
- * correct.\r
- * \r
- * @param swtThread\r
- * @param disposed\r
- * @param canvasContext\r
- * @param diagramToFit\r
- * @param zoomToFit\r
- */\r
- public static void scheduleZoomToFit(IThreadWorkQueue swtThread, final Supplier<Boolean> disposed,\r
- final ICanvasContext canvasContext, final IDiagram diagramToFit, boolean zoomToFit)\r
- {\r
- if (diagramToFit == null)\r
- throw new IllegalStateException("source diagram is null");\r
-\r
- Boolean canvasZoomToFit = canvasContext.getHintStack().getHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT);\r
- diagramToFit.setHint(Hints.KEY_DISABLE_PAINTING, Boolean.TRUE);\r
- if (zoomToFit && !Boolean.FALSE.equals(canvasZoomToFit))\r
- diagramToFit.setHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT, Boolean.TRUE);\r
-\r
- ThreadUtils.asyncExec(swtThread, new Runnable() {\r
- @Override\r
- public void run() {\r
- if (disposed.get() || canvasContext.isDisposed())\r
- return;\r
-\r
- ThreadUtils.asyncExec(canvasContext.getThreadAccess(), new Runnable() {\r
- @Override\r
- public void run() {\r
- if (disposed.get() || canvasContext.isDisposed())\r
- return;\r
-\r
- Boolean zoomToFit = diagramToFit.removeHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT);\r
- diagramToFit.removeHint(Hints.KEY_DISABLE_PAINTING);\r
-\r
- if (Boolean.TRUE.equals(zoomToFit))\r
- CanvasUtils.sendCommand(canvasContext, Commands.ZOOM_TO_FIT);\r
- CanvasUtils.sendCommand(canvasContext, Commands.ENABLE_PAINTING);\r
- }\r
- });\r
- }\r
- });\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.utils;
+
+import java.util.function.Supplier;
+
+import org.simantics.g2d.canvas.Hints;
+import org.simantics.g2d.canvas.ICanvasContext;
+import org.simantics.g2d.diagram.DiagramHints;
+import org.simantics.g2d.diagram.IDiagram;
+import org.simantics.scenegraph.g2d.events.command.Command;
+import org.simantics.scenegraph.g2d.events.command.CommandEvent;
+import org.simantics.scenegraph.g2d.events.command.Commands;
+import org.simantics.utils.threads.IThreadWorkQueue;
+import org.simantics.utils.threads.ThreadUtils;
+
+/**
+ * @author Toni Kalajainen
+ * @author Tuukka Lehtonen
+ */
+public class CanvasUtils {
+
+ /**
+ * Enqueue a command in the event queue of the specified canvas context.
+ *
+ * @param ctx queue context
+ * @param commandId ID of the command to queue
+ *
+ * @see #sendCommand(ICanvasContext, Command)
+ */
+ public static void sendCommand(ICanvasContext ctx, String commandId)
+ {
+ sendCommand(ctx, new Command(commandId));
+ }
+
+ /**
+ * Enqueue a command in the event queue of the specified canvas context.
+ *
+ * @param ctx queue context
+ * @param cmd the command to queue
+ */
+ public static void sendCommand(ICanvasContext ctx, Command cmd)
+ {
+ CommandEvent e = new CommandEvent(ctx, System.currentTimeMillis(), cmd);
+ ctx.getEventQueue().queueEvent(e);
+ }
+
+ /**
+ * A utility for scheduling a zoom-to-fit operation when an Eclipse
+ * workbench editor is initially opened.
+ *
+ * <p>
+ * There are two asynchronous calls, first into the workbench (SWT) UI
+ * thread and then into the canvas context thread. This will guarantee that
+ * the parenting SWT control has been resized to its actual size instead of
+ * the initial (0,0) size which widgets start out at. In order to perform a
+ * zoom-to-fit operation we simply have to know the bounds of the parenting
+ * control. Thus, we need to ensure that this information is available and
+ * correct.
+ *
+ * @param swtThread
+ * @param disposed
+ * @param canvasContext
+ * @param diagramToFit
+ */
+ public static void scheduleZoomToFit(IThreadWorkQueue swtThread, final Supplier<Boolean> disposed,
+ final ICanvasContext canvasContext, final IDiagram diagramToFit)
+ {
+ scheduleZoomToFit(swtThread, disposed, canvasContext, diagramToFit, true);
+ }
+
+ /**
+ * A utility for scheduling a zoom-to-fit operation when an Eclipse
+ * workbench editor is initially opened.
+ *
+ * <p>
+ * There are two asynchronous calls, first into the workbench (SWT) UI
+ * thread and then into the canvas context thread. This will guarantee that
+ * the parenting SWT control has been resized to its actual size instead of
+ * the initial (0,0) size which widgets start out at. In order to perform a
+ * zoom-to-fit operation we simply have to know the bounds of the parenting
+ * control. Thus, we need to ensure that this information is available and
+ * correct.
+ *
+ * @param swtThread
+ * @param disposed
+ * @param canvasContext
+ * @param diagramToFit
+ * @param zoomToFit
+ */
+ public static void scheduleZoomToFit(IThreadWorkQueue swtThread, final Supplier<Boolean> disposed,
+ final ICanvasContext canvasContext, final IDiagram diagramToFit, boolean zoomToFit)
+ {
+ if (diagramToFit == null)
+ throw new IllegalStateException("source diagram is null");
+
+ Boolean canvasZoomToFit = canvasContext.getHintStack().getHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT);
+ diagramToFit.setHint(Hints.KEY_DISABLE_PAINTING, Boolean.TRUE);
+ if (zoomToFit && !Boolean.FALSE.equals(canvasZoomToFit))
+ diagramToFit.setHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT, Boolean.TRUE);
+
+ ThreadUtils.asyncExec(swtThread, new Runnable() {
+ @Override
+ public void run() {
+ if (disposed.get() || canvasContext.isDisposed())
+ return;
+
+ ThreadUtils.asyncExec(canvasContext.getThreadAccess(), new Runnable() {
+ @Override
+ public void run() {
+ if (disposed.get() || canvasContext.isDisposed())
+ return;
+
+ Boolean zoomToFit = diagramToFit.removeHint(DiagramHints.KEY_INITIAL_ZOOM_TO_FIT);
+ diagramToFit.removeHint(Hints.KEY_DISABLE_PAINTING);
+
+ if (Boolean.TRUE.equals(zoomToFit))
+ CanvasUtils.sendCommand(canvasContext, Commands.ZOOM_TO_FIT);
+ CanvasUtils.sendCommand(canvasContext, Commands.ENABLE_PAINTING);
+ }
+ });
+ }
+ });
+ }
+
+}
Code Review / simantics / platform.git / blobdiff