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26 package org.objectweb.util.explorer.interpreter.lib.swt;
27
28 import java.net.URL  ;
29
30 import org.eclipse.swt.SWT;
31 import org.eclipse.swt.graphics.Image;
32 import org.eclipse.swt.widgets.Menu;
33 import org.eclipse.swt.widgets.MenuItem;
34 import org.objectweb.fractal.api.NoSuchInterfaceException;
35 import org.objectweb.util.explorer.api.IconProvider;
36 import org.objectweb.util.explorer.api.MenuItemTreeView;
37 import org.objectweb.util.explorer.api.TreeView;
38 import org.objectweb.util.explorer.core.code.api.Code;
39 import org.objectweb.util.explorer.core.code.api.CodeProvider;
40 import org.objectweb.util.explorer.core.common.api.Description;
41 import org.objectweb.util.explorer.core.icon.api.IconDescription;
42 import org.objectweb.util.explorer.core.menu.api.AcceleratorDescription;
43 import org.objectweb.util.explorer.core.menu.api.ItemDescription;
44 import org.objectweb.util.explorer.core.menu.api.MenuDescription;
45 import org.objectweb.util.explorer.core.menu.api.MenuElement;
46 import org.objectweb.util.explorer.core.menu.api.MenuSeparator;
47 import org.objectweb.util.explorer.interpreter.api.DescriptionInterpreter;
48 import org.objectweb.util.explorer.interpreter.lib.AbstractDescriptionInterpreter;
49
50
58 public abstract class AbstractMenuInterpreter
59 extends AbstractDescriptionInterpreter
60 {
61
62
68 protected final String ICON_INTERPRETER = "icon-interpreter";
69
70
76
82
86 protected Image getIcon(IconDescription iconDesc, TreeView treeView){
87 if(iconDesc!=null){
88 IconProvider iconProvider = (IconProvider) getIconInterpreter().interprete(iconDesc, treeView);
89 if(iconProvider!=null){
90 Object object = iconProvider.newIcon(treeView.getSelectedObject());
91 if(object instanceof Image){
92 return (Image)object;
93 } else if(object instanceof String ) {
94 return (Image)(new IconFileProvider((String )object)).newIcon(treeView.getSelectedObject());
95 } else if (object instanceof URL ) {
96 return (Image)(new IconFileProvider((URL )object)).newIcon(treeView.getSelectedObject());
97 }
98 }
99 }
100 return null;
101 }
102
103 protected int getAccelerator(AcceleratorDescription accDesc){
104 int acc = 0;
105 if(accDesc!=null && !accDesc.isEmpty()){
106 if (accDesc.getCtrlKey()) acc+=SWT.CTRL;
107 if (accDesc.getAltKey()) acc+=SWT.ALT;
108 if (accDesc.getShiftKey()) acc+=SWT.SHIFT;
109 acc += accDesc.getAcceleratorCharacter();
110 }
111 return acc;
112 }
113
114 protected String getAcceleratorName(AcceleratorDescription accDesc){
115 if(accDesc!=null && !accDesc.isEmpty()){
116 return accDesc.getName();
117 }
118 return null;
119 }
120
121
124 protected void addMenuItem(Menu menu, ItemDescription itemDesc, MenuItemTreeView treeView){
125 if(itemDesc!=null && !itemDesc.isEmpty()){
126 Code actionCode = getCodeProvider().getCode(itemDesc.getCodeDescription());
127 if(actionCode!=null && actionCode.isInstanceOf(org.objectweb.util.explorer.api.MenuItem.class)){
128 org.objectweb.util.explorer.api.MenuItem action = (org.objectweb.util.explorer.api.MenuItem)actionCode.createInstance();
129 int actionStatus = action.getStatus(treeView);
130 if(actionStatus!=org.objectweb.util.explorer.api.MenuItem.NOT_VISIBLE_STATUS){
131 MenuItem menuItem = new MenuItem(menu, SWT.PUSH);
132 String acceleratorName = getAcceleratorName(itemDesc.getAcceleratorDescription());
133 if(acceleratorName!=null && !acceleratorName.equals("")){
134 menuItem.setText(itemDesc.getLabel() + "\t" + acceleratorName);
135 menuItem.setAccelerator(getAccelerator(itemDesc.getAcceleratorDescription()));
136 } else {
137 menuItem.setText(itemDesc.getLabel());
138 }
139 menuItem.addListener(SWT.Selection, new GenericAction(action, treeView));
140 menuItem.setEnabled(actionStatus!=org.objectweb.util.explorer.api.MenuItem.DISABLED_STATUS);
141 menuItem.setImage(getIcon(itemDesc.getIconDescription(), treeView));
142 }
143 } else {
144 getTrace().warn(itemDesc.getCodeDescription().getCode() + " is not a MenuItem instance!");
145 }
146 }
147 }
148
149
152 protected void addMenuSeparator(Menu menu){
153 MenuItem separator = new MenuItem(menu, SWT.SEPARATOR);
154 }
155
156 protected Menu createMenu(MenuDescription menuDesc, MenuItemTreeView treeView){
157 Menu menu = null;
158 if(menuDesc!=null && !menuDesc.isEmpty()){
159 menu = getMenu();
160 MenuElement[] menuElement = menuDesc.getAllMenuElements();
161 for (int i = 0; i < menuElement.length; i++) {
162 MenuElement element = menuElement[i];
163 if(element instanceof ItemDescription){
164 addMenuItem(menu, (ItemDescription)element, treeView);
165 } else if(element instanceof MenuSeparator){
166 addMenuSeparator(menu);
167 }
168 }
169 }
170 return menu;
171 }
172
173 protected DescriptionInterpreter getIconInterpreter(){
174 try {
175 return (DescriptionInterpreter)lookupFc(ICON_INTERPRETER);
176 } catch (NoSuchInterfaceException e) {
177 getTrace().warn(ICON_INTERPRETER + ": interface not found!");
178 return null;
179 }
180 }
181
182
188
191 public String [] clientFc() {
192 return new String []{CodeProvider.CODE_PROVIDER, ICON_INTERPRETER};
193 }
194
195
201
204 public Object interprete(Description description, TreeView treeView) {
205 MenuDescription menuDesc = (MenuDescription)description;
206 return createMenu(menuDesc, (MenuItemTreeView)treeView);
207 }
208
209
215 public abstract Menu getMenu();
216 }
217 |
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