trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/dialog/treeitem/TreeCheckboxStateListener.java
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/trace/traceviewer/com.nokia.traceviewer/src/com/nokia/traceviewer/dialog/treeitem/TreeCheckboxStateListener.java Wed Jun 23 14:49:59 2010 +0300
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Nokia Corporation - initial contribution.
+ *
+ * Contributors:
+ *
+ * Description:
+ *
+ * Tree Checkbox State Listener class
+ *
+ */
+package com.nokia.traceviewer.dialog.treeitem;
+
+import org.eclipse.jface.viewers.CheckStateChangedEvent;
+import org.eclipse.jface.viewers.CheckboxTreeViewer;
+import org.eclipse.jface.viewers.ICheckStateListener;
+
+import com.nokia.traceviewer.engine.TraceViewerGlobals;
+
+/**
+ * Tree Checkbox State Listener class
+ */
+public class TreeCheckboxStateListener implements ICheckStateListener {
+
+ /**
+ * CheckboxTreeViewer
+ */
+ private final CheckboxTreeViewer viewer;
+
+ /**
+ * Constructor
+ *
+ * @param viewer
+ * checkboxviewer
+ */
+ public TreeCheckboxStateListener(CheckboxTreeViewer viewer) {
+ this.viewer = viewer;
+ }
+
+ public void checkStateChanged(CheckStateChangedEvent event) {
+ // Check and uncheck children
+ if (event.getChecked()) {
+ viewer.setSubtreeChecked(event.getElement(), true);
+ } else {
+ viewer.setSubtreeChecked(event.getElement(), false);
+ }
+ viewer.setGrayed(event.getElement(), false);
+
+ // Set something changed variable to color dialog
+ if (event.getElement() instanceof ColorTreeItem) {
+ TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+ .getColorer().getColorDialog().setSomethingChanged(true);
+
+ // Set something changed variable to filter dialog
+ } else if (event.getElement() instanceof FilterTreeItem) {
+ TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+ .getFilterProcessor().getFilterDialog()
+ .setSomethingChanged(true);
+
+ // Set something changed variable to linecount dialog
+ } else if (event.getElement() instanceof LineCountTreeItem) {
+ TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+ .getLineCountProcessor().getLineCountDialog()
+ .setSomethingChanged(true);
+
+ // Set something changed variable to variableTracing dialog
+ } else if (event.getElement() instanceof VariableTracingTreeItem) {
+ TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+ .getVariableTracingProcessor().getVariableTracingDialog()
+ .setSomethingChanged(true);
+
+ // Set something changed variable to trigger dialog
+ } else if (event.getElement() instanceof TriggerTreeItem) {
+ TraceViewerGlobals.getTraceViewer().getDataProcessorAccess()
+ .getTriggerProcessor().getTriggerDialog()
+ .setSomethingChanged(true);
+ }
+
+ // Check parents if needed
+ checkStateChanged((TreeItem) event.getElement());
+ }
+
+ /**
+ * Makes needed changes to viewer if checked state was changed manually
+ *
+ * @param item
+ * item which has checked state changed
+ */
+ public void checkStateChanged(TreeItem item) {
+ TreeItem parent = (TreeItem) item.getParent();
+ // Item checked
+ if (viewer.getChecked(item) && !viewer.getGrayed(item)
+ && parent != null) {
+
+ // If all children checked, check parent also
+ if (allChildrenChecked(parent)) {
+ viewer.setChecked(parent, true);
+ viewer.setGrayed(parent, false);
+ // Only grey check
+ } else {
+ viewer.setGrayChecked(parent, true);
+ }
+
+ checkStateChanged(parent);
+
+ // Item unchecked
+ } else if (!viewer.getChecked(item) && parent != null) {
+
+ // If any children still checked
+ if (anyChildrenChecked(parent)) {
+ viewer.setGrayChecked(parent, true);
+ } else {
+ viewer.setGrayChecked(parent, false);
+ }
+ checkStateChanged(parent);
+ } else if (viewer.getChecked(item) && viewer.getGrayed(item)
+ && parent != null) {
+
+ viewer.setGrayChecked(parent, true);
+ checkStateChanged(parent);
+ }
+ }
+
+ /**
+ * Tells if given item has any children checked
+ *
+ * @param item
+ * item to investigate
+ * @return true if this item has any children checked
+ */
+ public boolean anyChildrenChecked(TreeItem item) {
+ boolean isAnyChecked = false;
+
+ Object[] children = item.getChildren();
+
+ for (int i = 0; i < children.length; i++) {
+ if (viewer.getChecked(children[i])) {
+ isAnyChecked = true;
+ break;
+ }
+ }
+ return isAnyChecked;
+ }
+
+ /**
+ * Tells if given item has all children checked
+ *
+ * @param item
+ * item to investigate
+ * @return true if this item has all children checked
+ */
+ public boolean allChildrenChecked(TreeItem item) {
+ boolean isAllChecked = true;
+
+ Object[] children = item.getChildren();
+
+ for (int i = 0; i < children.length; i++) {
+ if (!viewer.getChecked(children[i])
+ && !viewer.getGrayed(children[i])) {
+ isAllChecked = false;
+ break;
+ }
+ }
+ return isAllChecked;
+ }
+}