Added a button in the action toolbar to toggle between snap modes (none,

grid, component)

diylc/diylc-swing/src/org/diylc/swing/ActionFactory.java

@@ -1705,7 +1705,7 @@ public class ActionFactory {
     }
   }
 
-  public static class ToggleAction extends AbstractAction {
+  public static class ToggleAction extends AbstractAction implements IConfigListener {
 
     private static final long serialVersionUID = 1L;
 
@@ -1720,6 +1720,8 @@ public class ActionFactory {
           .readString(configKey, defaultValue).equalsIgnoreCase(title));
       if (icon != null)
         putValue(AbstractAction.SMALL_ICON, icon);
+      // keep track of config changes and update the state accordingly
+      ConfigurationManager.getInstance().addConfigListener(configKey, this);
     }
 
     @Override
@@ -1727,6 +1729,11 @@ public class ActionFactory {
       LOG.info(getValue(AbstractAction.NAME) + " toggle triggered");
       ConfigurationManager.getInstance().writeValue(configKey, getValue(AbstractAction.NAME));
     }
+
+    @Override
+    public void valueChanged(String key, Object value) {
+      putValue(AbstractAction.SELECTED_KEY, getValue(AbstractAction.NAME).toString().equalsIgnoreCase(value.toString()));
+    }
   }
 
   public static class ThemeAction extends AbstractAction {

diylc/diylc-swing/src/org/diylc/swing/gui/actionbar/ActionBarPlugin.java

@@ -26,7 +26,9 @@ import java.awt.event.ComponentAdapter;
 import java.awt.event.ComponentEvent;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.util.ArrayList;
 import java.util.EnumSet;
+import java.util.List;
 
 import javax.swing.BorderFactory;
 import javax.swing.JLabel;
@@ -42,11 +44,10 @@ import org.diylc.common.EventType;
 import org.diylc.common.IComponentTransformer;
 import org.diylc.common.IPlugIn;
 import org.diylc.common.IPlugInPort;
-import org.diylc.swing.images.IconLoader;
 import org.diylc.lang.LangUtil;
 import org.diylc.swing.ActionFactory;
 import org.diylc.swing.ISwingUI;
-import org.diylc.swing.plugins.canvas.CanvasPlugin;
+import org.diylc.swing.images.IconLoader;
 import org.diylc.swing.plugins.help.HelpMenuPlugin;
 
 /**
@@ -152,6 +153,13 @@ public class ActionBarPlugin implements IPlugIn {
   public ConfigToolbar getConfigToolbar() {
     if (configToolbar == null) {
       configToolbar = new ConfigToolbar();
+
+      List<ToggleItem> toggleItems = new ArrayList<ToggleItem>();
+      toggleItems.add(new ToggleItem(IPlugInPort.SNAP_TO_NONE, IPlugInPort.SNAP_TO_NONE, IconLoader.SnapToNone.getIcon()));
+      toggleItems.add(new ToggleItem(IPlugInPort.SNAP_TO_GRID, IPlugInPort.SNAP_TO_GRID, IconLoader.SnapToGrid.getIcon()));
+      toggleItems.add(new ToggleItem(IPlugInPort.SNAP_TO_COMPONENTS, IPlugInPort.SNAP_TO_COMPONENTS, IconLoader.SnapToComponents.getIcon()));
+      configToolbar.addToggleLabel(LangUtil.translate("Snap To"), IPlugInPort.SNAP_TO_KEY, IPlugInPort.SNAP_TO_DEFAULT, toggleItems);
+      
       configToolbar.add(LangUtil.translate("Continuous Creation"), IPlugInPort.CONTINUOUS_CREATION_KEY, IconLoader.Elements.getIcon(), false);
       configToolbar.add(LangUtil.translate("Highlight Connected Areas"), IPlugInPort.HIGHLIGHT_CONTINUITY_AREA, IconLoader.LaserPointer.getIcon(), false);
       configToolbar.add(LangUtil.translate("Sticky Points"), IPlugInPort.STICKY_POINTS_KEY, IconLoader.GraphNodes.getIcon(), true);

diylc/diylc-swing/src/org/diylc/swing/gui/actionbar/ConfigToolbar.java

@@ -25,6 +25,7 @@ import java.awt.Component;
 import java.awt.Cursor;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.util.List;
 
 import javax.swing.BorderFactory;
 import javax.swing.Icon;
@@ -75,6 +76,11 @@ public class ConfigToolbar extends JPanel {
     });
   }
   
+  public void addToggleLabel(String text, String configKey, String defaultValue, List<ToggleItem> items) {
+    ToggleConfigLabel label = new ToggleConfigLabel(text, configKey, defaultValue, items);
+    add(label);
+  }
+  
   @Override
   public void setEnabled(boolean enabled) {
     for (Component c : getComponents())

diylc/diylc-swing/src/org/diylc/swing/gui/actionbar/ToggleConfigLabel.java

@@ -0,0 +1,85 @@
+/*
+
+    DIY Layout Creator (DIYLC).
+    Copyright (c) 2009-2018 held jointly by the individual authors.
+
+    This file is part of DIYLC.
+
+    DIYLC is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    DIYLC is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with DIYLC.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+package org.diylc.swing.gui.actionbar;
+
+import java.awt.Cursor;
+import java.awt.event.MouseAdapter;
+import java.awt.event.MouseEvent;
+import java.util.List;
+
+import javax.swing.JLabel;
+import javax.swing.SwingConstants;
+
+import org.diylc.appframework.miscutils.ConfigurationManager;
+import org.diylc.appframework.miscutils.IConfigListener;
+import org.diylc.lang.LangUtil;
+
+public class ToggleConfigLabel extends JLabel implements IConfigListener {
+
+  private static final long serialVersionUID = 1L;
+  
+  private List<ToggleItem> items;
+  private String configItem;
+  private String title;
+  
+  private int itemIndex = 0;  
+
+  public ToggleConfigLabel(String title, String configKey, String defaultValue, List<ToggleItem> items) {
+    super();
+    this.title = title;
+    this.configItem = configKey;
+    this.items = items;
+    setHorizontalTextPosition(SwingConstants.LEFT);
+    setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
+    
+    valueChanged(configKey, ConfigurationManager.getInstance().readString(configKey, defaultValue));
+    ConfigurationManager.getInstance().addConfigListener(configKey, this);
+    
+    addMouseListener(new MouseAdapter() {
+      @Override
+      public void mouseClicked(MouseEvent e) {
+        itemIndex++;
+        if (itemIndex >= items.size())
+          itemIndex = 0;        
+        ConfigurationManager.getInstance().writeValue(configKey, items.get(itemIndex).getConfigValue());
+      }
+    });
+  }
+  
+  @Override
+  public void valueChanged(String key, Object value) {
+    if (!this.configItem.equalsIgnoreCase(key) || value == null)
+      return;
+    
+    this.itemIndex = 0;
+    for (int i = 0; i < items.size(); i++) {
+      ToggleItem item = items.get(i);
+      if (item.getConfigValue().equalsIgnoreCase(value.toString()))
+      {
+        this.itemIndex = i;
+        setIcon(item.getIcon());
+        setToolTipText(title + " " + item.getConfigValue() + ". " + LangUtil.translate("Click to toggle to the next option"));
+        break;
+      }
+    }
+  }
+}

diylc/diylc-swing/src/org/diylc/swing/gui/actionbar/ToggleItem.java

@@ -0,0 +1,28 @@
+package org.diylc.swing.gui.actionbar;
+
+import javax.swing.Icon;
+
+public class ToggleItem {
+  private String name;
+  private String configValue;
+  private Icon icon;
+  
+  public ToggleItem(String name, String configValue, Icon icon) {
+    super();
+    this.name = name;
+    this.configValue = configValue;
+    this.icon = icon;
+  }
+
+  public String getName() {
+    return name;
+  }
+
+  public String getConfigValue() {
+    return configValue;
+  }
+
+  public Icon getIcon() {
+    return icon;
+  }
+}

diylc/diylc-swing/src/org/diylc/swing/images/IconLoader.java

@@ -66,7 +66,8 @@ public enum IconLoader {
       Node("node.png"), Web("web.png"), Guitar("guitar.png"), Scientist("scientist.png"), StarGrey("star_grey.png"), StarBlue("star_blue.png"), 
       JarBeanInto("jar_bean_into.png"), GraphEdgeDirected("graph_edge_directed.png"), LaserPointer("laserpointer.png"), TapeMeasure("tape_measure1.png"),
       Elements("elements1.png"), GraphNodes("graph_nodes.png"), User("user1.png"), FlexibleLeads("flexible_leads.png"), Pads("pads.png"), Lock("lock.png"),
-      Unlock("lock_open.png"), Earth("earth.png"), Loadline("loadline.png"), LoadlineAdd("loadline_add.png");
+      Unlock("lock_open.png"), Earth("earth.png"), Loadline("loadline.png"), LoadlineAdd("loadline_add.png"), SnapToGrid("snap_to_grid.png"),
+      SnapToComponents("snap_to_components.png"), SnapToNone("snap_to_none.png");
 
   protected String name;
 

diylc/diylc-swing/src/org/diylc/swing/plugins/canvas/CanvasPanel.java

@@ -36,7 +36,6 @@ import java.awt.event.ComponentAdapter;
 import java.awt.event.ComponentEvent;
 import java.awt.event.KeyEvent;
 import java.awt.image.VolatileImage;
-import java.util.Arrays;
 import java.util.EnumSet;
 import java.util.HashMap;
 import java.util.List;

diylc/diylc-swing/src/org/diylc/swing/plugins/config/ConfigPlugin.java

@@ -56,7 +56,7 @@ public class ConfigPlugin implements IPlugIn {
   private static final String CONFIG_MENU = "Config";
   private static final String THEME_MENU = "Theme";
   private static final String RULER_MENU = "Ruler Inch Subdivision...";
-  private static final String SNAP_MENU = "Snap To...";
+  private static final String SNAP_MENU = "Snap To";
   private static final String COMPONENT_BROWSER_MENU = "Toolbox";
   public static final String COMPONENT_BROWSER = "componentBrowser";
   public static final String SEARCHABLE_TREE = "Searchable Tree";