Author: tfmorris
Date: 2007-08-30 11:43:19-0700
New Revision: 13457
Added:
trunk/src/model/src/org/argouml/model/CommandStack.java
trunk/src/model/src/org/argouml/model/DefaultCommandStack.java
Modified:
trunk/src/model/src/org/argouml/model/Model.java
trunk/src/model/src/org/argouml/model/ModelImplementation.java
Log:
Merge Bogdan's end of term GSoC work for eUML
Added: trunk/src/model/src/org/argouml/model/CommandStack.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src/model/src/org/argouml/model/CommandStack.java?view=auto&rev=13457
==============================================================================
--- (empty file)
+++ trunk/src/model/src/org/argouml/model/CommandStack.java 2007-08-30 11:43:19-0700
@@ -0,0 +1,128 @@
+// $Id: CommandStack.java 13420 2007-08-20 16:59:01Z b00__1 $
+// Copyright (c) 2007 The Regents of the University of California. All
+// Rights Reserved. Permission to use, copy, modify, and distribute this
+// software and its documentation without fee, and without a written
+// agreement is hereby granted, provided that the above copyright notice
+// and this paragraph appear in all copies. This software program and
+// documentation are copyrighted by The Regents of the University of
+// California. The software program and documentation are supplied "AS
+// IS", without any accompanying services from The Regents. The Regents
+// does not warrant that the operation of the program will be
+// uninterrupted or error-free. The end-user understands that the program
+// was developed for research purposes and is advised not to rely
+// exclusively on the program for any reason. IN NO EVENT SHALL THE
+// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
+// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
+// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
+// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+package org.argouml.model;
+
+/**
+ * This class contains methods for controlling the commands applied to the model
+ * as a stack of commands. There are methods to undo a command (moving the stack
+ * pointer down to the previous executed command) or to redo a command (moving
+ * the stack pointer up, to the next command in the stack)
+ */
+public interface CommandStack {
+
+ /**
+ * The event's name that is triggered when the command stack executes a
+ * command.
+ */
+ String COMMAND_STACK_UPDATE_EVENT = "COMMAND_STACK_CHANGED";
+
+ /**
+ * This is a basic default instance of this interface.
+ */
+ CommandStack DEFAULT_INSTANCE = new CommandStack() {
+
+ public boolean canRedo() {
+ return false;
+ }
+
+ public boolean canUndo() {
+ return false;
+ }
+
+ public String getRedoLabel() {
+ return null;
+ }
+
+ public String getUndoLabel() {
+ return null;
+ }
+
+ public boolean isCommandStackCapabilityAvailable() {
+ return false;
+ }
+
+ public void redo() {
+ }
+
+ public void undo() {
+ }
+
+ };
+
+ /**
+ * Determines if the command stack operations are supported by the current
+ * implementation.
+ *
+ * @return true if the operations of this interface are implemented
+ */
+ boolean isCommandStackCapabilityAvailable();
+
+ /**
+ * Undo the most recent command.
+ * <p>
+ * If canUndo() returns false this will have no effect.
+ */
+ void undo();
+
+ /**
+ * Redo the most recent undone command.
+ * <p>
+ * If canRedo() returns false this will have no effect.
+ */
+ void redo();
+
+ /**
+ * Verifies if the command stack can undo the last changes in the model.
+ *
+ * @return true if undo is possible, false otherwise
+ */
+ boolean canUndo();
+
+ /**
+ * Verifies if the command stack can redo the last undone command.
+ *
+ * @return true if redo is possible, false otherwise
+ */
+ boolean canRedo();
+
+ /**
+ * Describes the command to undo.
+ * <p>
+ * If canUndo() returns false then this will return null.
+ *
+ * @return a description of the current undo command or null
+ */
+ String getUndoLabel();
+
+ /**
+ * Describes the command to redo.
+ * <p>
+ * If canRedo() returns false then this will return null.
+ *
+ * @return a description of the current redo command or null
+ */
+ String getRedoLabel();
+
+}
Added: trunk/src/model/src/org/argouml/model/DefaultCommandStack.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src/model/src/org/argouml/model/DefaultCommandStack.java?view=auto&rev=13457
==============================================================================
--- (empty file)
+++ trunk/src/model/src/org/argouml/model/DefaultCommandStack.java 2007-08-30 11:43:19-0700
@@ -0,0 +1,62 @@
+// $Id: $
+// Copyright (c) 2007 The Regents of the University of California. All
+// Rights Reserved. Permission to use, copy, modify, and distribute this
+// software and its documentation without fee, and without a written
+// agreement is hereby granted, provided that the above copyright notice
+// and this paragraph appear in all copies. This software program and
+// documentation are copyrighted by The Regents of the University of
+// California. The software program and documentation are supplied "AS
+// IS", without any accompanying services from The Regents. The Regents
+// does not warrant that the operation of the program will be
+// uninterrupted or error-free. The end-user understands that the program
+// was developed for research purposes and is advised not to rely
+// exclusively on the program for any reason. IN NO EVENT SHALL THE
+// UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+// SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
+// ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
+// THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY
+// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE
+// PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF
+// CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT,
+// UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+package org.argouml.model;
+
+/**
+ * Default CommandStack implementation for Model subsystem implementations which
+ * don't support this capability.
+ *
+ * @author Tom Morris <[email protected]>
+ *
+ */
+public class DefaultCommandStack implements CommandStack {
+
+ public boolean canRedo() {
+ return false;
+ }
+
+ public boolean canUndo() {
+ return false;
+ }
+
+ public String getRedoLabel() {
+ return null;
+ }
+
+ public String getUndoLabel() {
+ return null;
+ }
+
+ public boolean isCommandStackCapabilityAvailable() {
+ return false;
+ }
+
+ public void redo() {
+ }
+
+ public void undo() {
+ }
+
+}
Modified: trunk/src/model/src/org/argouml/model/Model.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src/model/src/org/argouml/model/Model.java?view=diff&rev=13457&p1=trunk/src/model/src/org/argouml/model/Model.java&p2=trunk/src/model/src/org/argouml/model/Model.java&r1=13456&r2=13457
==============================================================================
--- trunk/src/model/src/org/argouml/model/Model.java (original)
+++ trunk/src/model/src/org/argouml/model/Model.java 2007-08-30 11:43:19-0700
@@ -554,4 +554,13 @@
public static CopyHelper getCopyHelper() {
return impl.getCopyHelper();
}
+
+ /**
+ * Get the command stack.
+ *
+ * @return the command stack
+ */
+ public static CommandStack getCommandStack() {
+ return impl.getCommandStack();
+ }
}
Modified: trunk/src/model/src/org/argouml/model/ModelImplementation.java
Url: http://argouml.tigris.org/source/browse/argouml/trunk/src/model/src/org/argouml/model/ModelImplementation.java?view=diff&rev=13457&p1=trunk/src/model/src/org/argouml/model/ModelImplementation.java&p2=trunk/src/model/src/org/argouml/model/ModelImplementation.java&r1=13456&r2=13457
==============================================================================
--- trunk/src/model/src/org/argouml/model/ModelImplementation.java (original)
+++ trunk/src/model/src/org/argouml/model/ModelImplementation.java 2007-08-30 11:43:19-0700
@@ -319,5 +319,12 @@
* @return the CopyHelper
*/
CopyHelper getCopyHelper();
+
+ /**
+ * Get the command stack.
+ *
+ * @return the command stack
+ */
+ CommandStack getCommandStack();
}
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