1 |
|
---|
2 | package de.ugoe.cs.quest.jfcmonitor;
|
---|
3 |
|
---|
4 | import java.awt.Component;
|
---|
5 | import java.awt.Container;
|
---|
6 | import java.beans.PropertyChangeListener;
|
---|
7 | import java.io.File;
|
---|
8 | import java.lang.reflect.InvocationTargetException;
|
---|
9 | import java.lang.reflect.Method;
|
---|
10 | import java.security.InvalidParameterException;
|
---|
11 | import java.util.ArrayList;
|
---|
12 | import java.util.HashMap;
|
---|
13 | import java.util.LinkedList;
|
---|
14 | import java.util.List;
|
---|
15 | import java.util.Map;
|
---|
16 |
|
---|
17 | import javax.accessibility.AccessibleContext;
|
---|
18 |
|
---|
19 | import de.ugoe.cs.util.StringTools;
|
---|
20 |
|
---|
21 | /**
|
---|
22 | * <p>
|
---|
23 | * This class manages information about the current GUI. It always contains the current GUI
|
---|
24 | * hierarchy.
|
---|
25 | * </p>
|
---|
26 | *
|
---|
27 | * @author Steffen Herbold, Fabian Glaser
|
---|
28 | * @version 1.0
|
---|
29 | */
|
---|
30 | public class JFCComponent {
|
---|
31 |
|
---|
32 | /**
|
---|
33 | * <p>
|
---|
34 | * Map of all known GUI components.
|
---|
35 | * </p>
|
---|
36 | */
|
---|
37 | private static Map<Component, JFCComponent> knownComponents =
|
---|
38 | new HashMap<Component, JFCComponent>();
|
---|
39 |
|
---|
40 | /**
|
---|
41 | * <p>
|
---|
42 | * List of PropertyChangeListeners that are registered on the components.
|
---|
43 | * </p>
|
---|
44 | */
|
---|
45 |
|
---|
46 | private static List<PropertyChangeListener> propertyChangeListeners =
|
---|
47 | new ArrayList<PropertyChangeListener>();
|
---|
48 |
|
---|
49 | /**
|
---|
50 | * <p>
|
---|
51 | * Adds a AWT component to the GUI hierarchy. If the component already exists in the hierarchy,
|
---|
52 | * it is not added a second time.
|
---|
53 | * </p>
|
---|
54 | *
|
---|
55 | * @param component
|
---|
56 | * component that is added
|
---|
57 | */
|
---|
58 | public static void add(Component component) {
|
---|
59 | add(component, find(component.getParent()));
|
---|
60 | }
|
---|
61 |
|
---|
62 | public static void addListener(PropertyChangeListener list){
|
---|
63 | propertyChangeListeners.add(list);
|
---|
64 | }
|
---|
65 |
|
---|
66 | /**
|
---|
67 | * <p>
|
---|
68 | * Adds a AWT component to the GUI hierarchy. If the component already exists in the hierarchy,
|
---|
69 | * it is not added a second time.
|
---|
70 | * </p>
|
---|
71 | *
|
---|
72 | * @param component
|
---|
73 | * component that is added
|
---|
74 | * @param parent
|
---|
75 | * parent of the component
|
---|
76 | */
|
---|
77 | public static void add(Component component, JFCComponent parent) {
|
---|
78 | if (!knownComponents.containsKey(component)) {
|
---|
79 | knownComponents.put(component, new JFCComponent(component, parent));
|
---|
80 | }
|
---|
81 | }
|
---|
82 |
|
---|
83 | /**
|
---|
84 | * <p>
|
---|
85 | * Finds a component in the GUI hierarchy and returns the corresponding JFComponent instance.
|
---|
86 | * Returns null if the component is not found.
|
---|
87 | * </p>
|
---|
88 | *
|
---|
89 | * @param component
|
---|
90 | * component that is searched for
|
---|
91 | * @return corresponding JFComponent instance; null if the compenent is not found
|
---|
92 | */
|
---|
93 | public static JFCComponent find(Component component) {
|
---|
94 | return knownComponents.get(component);
|
---|
95 | }
|
---|
96 |
|
---|
97 | /**
|
---|
98 | * <p>
|
---|
99 | * Removes a component from the GUI hierarchy. In case the component is not part of the known
|
---|
100 | * hierachy, nothing happens.
|
---|
101 | * </p>
|
---|
102 | *
|
---|
103 | * @param component
|
---|
104 | * component to be removed
|
---|
105 | */
|
---|
106 | public static void remove(Component component) {
|
---|
107 | JFCComponent jfcComponent = knownComponents.remove(component);
|
---|
108 | if (jfcComponent != null) {
|
---|
109 | jfcComponent.removeFromParent();
|
---|
110 | jfcComponent.removeChildren();
|
---|
111 | }
|
---|
112 | }
|
---|
113 |
|
---|
114 | /**
|
---|
115 | * <p>
|
---|
116 | * Parent of the GUI component. null means, that the component has no parent.
|
---|
117 | * </p>
|
---|
118 | */
|
---|
119 | private JFCComponent parent = null;
|
---|
120 |
|
---|
121 | /**
|
---|
122 | * <p>
|
---|
123 | * Child components of the component.
|
---|
124 | * </p>
|
---|
125 | */
|
---|
126 | private List<JFCComponent> children = new LinkedList<JFCComponent>();
|
---|
127 |
|
---|
128 | /**
|
---|
129 | * <p>
|
---|
130 | * Reference to the actual GUI component.
|
---|
131 | * </p>
|
---|
132 | */
|
---|
133 | private Component component;
|
---|
134 |
|
---|
135 | /**
|
---|
136 | * <p>
|
---|
137 | * Helper attribute that contains the title of the component. Set by {@link #setTitle()}.
|
---|
138 | * </p>
|
---|
139 | */
|
---|
140 | private String title = null;
|
---|
141 |
|
---|
142 | /**
|
---|
143 | * <p>
|
---|
144 | * Helper attribute that contains the class of the component. Set by {@link #setClass()}.
|
---|
145 | * </p>
|
---|
146 | */
|
---|
147 | private String componentClass = null;
|
---|
148 |
|
---|
149 | /**
|
---|
150 | * <p>
|
---|
151 | * Helper attribute that contains the icon of the component. Set by {@link #setIcon()}.
|
---|
152 | * </p>
|
---|
153 | */
|
---|
154 | private String icon = null;
|
---|
155 |
|
---|
156 | /**
|
---|
157 | * <p>
|
---|
158 | * Helper attribute that contains the icon of the component. Set by {@link #setIndex()}.
|
---|
159 | * </p>
|
---|
160 | */
|
---|
161 | private int index = -1;
|
---|
162 |
|
---|
163 | /**
|
---|
164 | * <p>
|
---|
165 | * Constructor. Creates a new JFCComponent. Only used internally by
|
---|
166 | * {@link #add(Component, JFCComponent)}.
|
---|
167 | * </p>
|
---|
168 | *
|
---|
169 | * @param component
|
---|
170 | * component associated with the JFCComponent
|
---|
171 | * @param parent
|
---|
172 | * parent of the component; null if there is no parent
|
---|
173 | */
|
---|
174 | private JFCComponent(Component component, JFCComponent parent) {
|
---|
175 | if (component == null) {
|
---|
176 | throw new InvalidParameterException("parameter component must not be null");
|
---|
177 | }
|
---|
178 | this.component = component;
|
---|
179 |
|
---|
180 | AccessibleContext context = component.getAccessibleContext();
|
---|
181 | if (context != null){
|
---|
182 | for (PropertyChangeListener listener: propertyChangeListeners)
|
---|
183 | context.addPropertyChangeListener(listener);
|
---|
184 | }
|
---|
185 |
|
---|
186 | this.parent = parent;
|
---|
187 | if (parent != null) {
|
---|
188 | parent.addChild(this);
|
---|
189 | }
|
---|
190 |
|
---|
191 | if (component instanceof Container) {
|
---|
192 | for (Component childComponent : ((Container) component).getComponents()) {
|
---|
193 | add(childComponent, this);
|
---|
194 | }
|
---|
195 | }
|
---|
196 | }
|
---|
197 |
|
---|
198 | /**
|
---|
199 | * <p>
|
---|
200 | * Adds a child component to the current component.
|
---|
201 | * </p>
|
---|
202 | *
|
---|
203 | * @param child
|
---|
204 | * child component to be added
|
---|
205 | */
|
---|
206 | private void addChild(JFCComponent child) {
|
---|
207 | children.add(child);
|
---|
208 | }
|
---|
209 |
|
---|
210 | /**
|
---|
211 | * <p>
|
---|
212 | * Returns an XML representation of the component.
|
---|
213 | * </p>
|
---|
214 | *
|
---|
215 | * @return XLM snippet
|
---|
216 | */
|
---|
217 | public String getXML() {
|
---|
218 | setClass();
|
---|
219 | setIcon();
|
---|
220 | setIndex();
|
---|
221 | setTitle();
|
---|
222 | StringBuilder builder = new StringBuilder();
|
---|
223 | builder.append(" <component");
|
---|
224 | if (parent != null){
|
---|
225 | builder.append(" parent=\"" + Integer.toHexString(parent.component.hashCode()) + "\"");
|
---|
226 | }
|
---|
227 | builder.append(">"+ StringTools.ENDLINE);
|
---|
228 | builder.append(" <param name=\"title\" value=\"" + title + "\" />" + StringTools.ENDLINE);
|
---|
229 | builder.append(" <param name=\"class\" value=\"" + componentClass + "\" />" +
|
---|
230 | StringTools.ENDLINE);
|
---|
231 | builder.append(" <param name=\"icon\" value=\"" + icon + "\" />" + StringTools.ENDLINE);
|
---|
232 | builder.append(" <param name=\"index\" value=\"" + index + "\" />" + StringTools.ENDLINE);
|
---|
233 | builder.append(" <param name=\"hash\" value=\"" +
|
---|
234 | Integer.toHexString(component.hashCode()) + "\" />" + StringTools.ENDLINE);
|
---|
235 | builder.append(" </component>" + StringTools.ENDLINE);
|
---|
236 | return builder.toString();
|
---|
237 | }
|
---|
238 |
|
---|
239 | /**
|
---|
240 | * <p>
|
---|
241 | * Returns an XML representation of the components children.
|
---|
242 | * </p>
|
---|
243 | * @return XML representation of children
|
---|
244 | */
|
---|
245 | public String printChildren(){
|
---|
246 | StringBuilder builder = new StringBuilder();
|
---|
247 | for (JFCComponent child: children){
|
---|
248 | builder.append(child.getXML());
|
---|
249 | builder.append(child.printChildren());
|
---|
250 | }
|
---|
251 | return builder.toString();
|
---|
252 | }
|
---|
253 |
|
---|
254 | /**
|
---|
255 | * <p>
|
---|
256 | * Removes a child component from the current component.
|
---|
257 | * </p>
|
---|
258 | *
|
---|
259 | * @param child
|
---|
260 | * child component to be removed
|
---|
261 | */
|
---|
262 | private void removeChild(JFCComponent child) {
|
---|
263 | children.remove(child);
|
---|
264 | }
|
---|
265 |
|
---|
266 | /**
|
---|
267 | * <p>
|
---|
268 | * Removes the component from the list of children of its parent.
|
---|
269 | * </p>
|
---|
270 | */
|
---|
271 | private void removeFromParent() {
|
---|
272 | if (parent != null) {
|
---|
273 | parent.removeChild(this);
|
---|
274 | }
|
---|
275 | }
|
---|
276 |
|
---|
277 | /**
|
---|
278 | * <p>
|
---|
279 | * Triggers the removals of all child components from the GUI hierarchy, i.e., calls
|
---|
280 | * {@link #remove(Component)} for all child components.
|
---|
281 | * </p>
|
---|
282 | */
|
---|
283 | private void removeChildren() {
|
---|
284 | for (JFCComponent child : children) {
|
---|
285 | remove(child.component);
|
---|
286 | }
|
---|
287 | }
|
---|
288 |
|
---|
289 | /**
|
---|
290 | * <p>
|
---|
291 | * Sets the {@link #title} of the component. The title is defined as follows (first in the list,
|
---|
292 | * that is not null):
|
---|
293 | * <ul>
|
---|
294 | * <li>accessible name of the component if available</li>
|
---|
295 | * <li>{@link #icon} of the component</li>
|
---|
296 | * <li>name of the component</li>
|
---|
297 | * <li>coordinates of the component</li>
|
---|
298 | * </ul>
|
---|
299 | * </p>
|
---|
300 | */
|
---|
301 | private void setTitle() {
|
---|
302 | title = null; // reset title
|
---|
303 |
|
---|
304 | AccessibleContext accessibleContext = component.getAccessibleContext();
|
---|
305 | if (accessibleContext != null) {
|
---|
306 | title = accessibleContext.getAccessibleName();
|
---|
307 | }
|
---|
308 | if (title == null) {
|
---|
309 | title = icon;
|
---|
310 | }
|
---|
311 | if (title == null) {
|
---|
312 | title = component.getName();
|
---|
313 | }
|
---|
314 | if (title == null) {
|
---|
315 | // use coordinates as last resort
|
---|
316 | title = "Pos(" + component.getX() + "," + component.getY() + ")";
|
---|
317 | }
|
---|
318 | }
|
---|
319 |
|
---|
320 | /**
|
---|
321 | * <p>
|
---|
322 | * Sets the {@link #componentClass} of the component.
|
---|
323 | * </p>
|
---|
324 | */
|
---|
325 | private void setClass() {
|
---|
326 | componentClass = component.getClass().getName();
|
---|
327 | }
|
---|
328 |
|
---|
329 | /**
|
---|
330 | * <p>
|
---|
331 | * Sets the {@link #icon} of the component.
|
---|
332 | * </p>
|
---|
333 | */
|
---|
334 | private void setIcon() {
|
---|
335 | icon = null; // reset icon
|
---|
336 |
|
---|
337 | Method getIconMethod;
|
---|
338 | try {
|
---|
339 | getIconMethod = component.getClass().getMethod("getIcon", new Class[0]);
|
---|
340 | if (getIconMethod != null) {
|
---|
341 | Object iconObject = getIconMethod.invoke(component, new Object[] { });
|
---|
342 | if (iconObject != null) {
|
---|
343 | String iconPath = iconObject.toString();
|
---|
344 | if (!iconPath.contains("@")) {
|
---|
345 | System.out.println("iconPath");
|
---|
346 | String[] splitResult =
|
---|
347 | iconPath.split(File.separatorChar == '\\' ? "\\\\" : File.separator);
|
---|
348 | icon = splitResult[splitResult.length - 1];
|
---|
349 | }
|
---|
350 | }
|
---|
351 | }
|
---|
352 | }
|
---|
353 | catch (SecurityException e) {}
|
---|
354 | catch (NoSuchMethodException e) {}
|
---|
355 | catch (IllegalArgumentException e) {}
|
---|
356 | catch (IllegalAccessException e) {}
|
---|
357 | catch (InvocationTargetException e) {
|
---|
358 | System.err.println("Found method with name " + "getIcon" + " but could not access it.");
|
---|
359 | }
|
---|
360 | }
|
---|
361 |
|
---|
362 | /**
|
---|
363 | * <p>
|
---|
364 | * Sets the {@link #index} of the component as the index in the parent, if it is accessible.
|
---|
365 | * </p>
|
---|
366 | */
|
---|
367 | private void setIndex() {
|
---|
368 | index = -1; // reset index
|
---|
369 |
|
---|
370 | AccessibleContext accessibleContext = component.getAccessibleContext();
|
---|
371 | if (accessibleContext != null) {
|
---|
372 | index = accessibleContext.getAccessibleIndexInParent();
|
---|
373 | }
|
---|
374 | }
|
---|
375 | }
|
---|