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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

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java/pkg/sun/awt/NullComponentPeer.java+312−0
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1+/*
2+ * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved.
3+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4+ *
5+ * This code is free software; you can redistribute it and/or modify it
6+ * under the terms of the GNU General Public License version 2 only, as
7+ * published by the Free Software Foundation. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
9+ * by Oracle in the LICENSE file that accompanied this code.
10+ *
11+ * This code is distributed in the hope that it will be useful, but WITHOUT
12+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
18+ * 2 along with this work; if not, write to the Free Software Foundation,
19+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20+ *
21+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22+ * or visit www.oracle.com if you need additional information or have any
23+ * questions.
24+ */
25+
26+package sun.awt;
27+
28+import java.awt.AWTException;
29+import java.awt.BufferCapabilities;
30+import java.awt.Color;
31+import java.awt.Component;
32+import java.awt.Cursor;
33+import java.awt.Dimension;
34+import java.awt.Font;
35+import java.awt.FontMetrics;
36+import java.awt.Graphics;
37+import java.awt.GraphicsConfiguration;
38+import java.awt.Image;
39+import java.awt.Insets;
40+import java.awt.MenuBar;
41+import java.awt.Point;
42+import java.awt.Event;
43+import java.awt.event.PaintEvent;
44+import java.awt.image.ColorModel;
45+import java.awt.image.ImageObserver;
46+import java.awt.image.ImageProducer;
47+import java.awt.image.VolatileImage;
48+import java.awt.peer.CanvasPeer;
49+import java.awt.peer.LightweightPeer;
50+import java.awt.peer.PanelPeer;
51+import java.awt.peer.ComponentPeer;
52+import java.awt.peer.ContainerPeer;
53+import java.awt.Rectangle;
54+import sun.java2d.pipe.Region;
55+
56+
57+/**
58+ * Implements the LightweightPeer interface for use in lightweight components
59+ * that have no native window associated with them. This gets created by
60+ * default in Component so that Component and Container can be directly
61+ * extended to create useful components written entirely in java. These
62+ * components must be hosted somewhere higher up in the component tree by a
63+ * native container (such as a Frame).
64+ *
65+ * This implementation provides no useful semantics and serves only as a
66+ * marker. One could provide alternative implementations in java that do
67+ * something useful for some of the other peer interfaces to minimize the
68+ * native code.
69+ *
70+ * This was renamed from java.awt.LightweightPeer (a horrible and confusing
71+ * name) and moved from java.awt.Toolkit into sun.awt as a public class in
72+ * its own file.
73+ *
74+ * @author Timothy Prinzing
75+ * @author Michael Martak
76+ */
77+
78+public class NullComponentPeer implements LightweightPeer,
79+ CanvasPeer, PanelPeer {
80+
81+ public boolean isObscured() {
82+ return false;
83+ }
84+
85+ public boolean canDetermineObscurity() {
86+ return false;
87+ }
88+
89+ public boolean isFocusable() {
90+ return false;
91+ }
92+
93+ public void setVisible(boolean b) {
94+ }
95+
96+ public void show() {
97+ }
98+
99+ public void hide() {
100+ }
101+
102+ public void setEnabled(boolean b) {
103+ }
104+
105+ public void enable() {
106+ }
107+
108+ public void disable() {
109+ }
110+
111+ public void paint(Graphics g) {
112+ }
113+
114+ public void repaint(long tm, int x, int y, int width, int height) {
115+ }
116+
117+ public void print(Graphics g) {
118+ }
119+
120+ public void setBounds(int x, int y, int width, int height, int op) {
121+ }
122+
123+ public void reshape(int x, int y, int width, int height) {
124+ }
125+
126+ public void coalescePaintEvent(PaintEvent e) {
127+ }
128+
129+ public boolean handleEvent(Event e) {
130+ return false;
131+ }
132+
133+ public void handleEvent(java.awt.AWTEvent arg0) {
134+ }
135+
136+ public Dimension getPreferredSize() {
137+ return new Dimension(1,1);
138+ }
139+
140+ public Dimension getMinimumSize() {
141+ return new Dimension(1,1);
142+ }
143+
144+ public java.awt.Toolkit getToolkit() {
145+ return null;
146+ }
147+
148+ public ColorModel getColorModel() {
149+ return null;
150+ }
151+
152+ public Graphics getGraphics() {
153+ return null;
154+ }
155+
156+ public GraphicsConfiguration getGraphicsConfiguration() {
157+ return null;
158+ }
159+
160+ public FontMetrics getFontMetrics(Font font) {
161+ return null;
162+ }
163+
164+ public void dispose() {
165+ // no native code
166+ }
167+
168+ public void setForeground(Color c) {
169+ }
170+
171+ public void setBackground(Color c) {
172+ }
173+
174+ public void setFont(Font f) {
175+ }
176+
177+ public void updateCursorImmediately() {
178+ }
179+
180+ public void setCursor(Cursor cursor) {
181+ }
182+
183+ public boolean requestFocus
184+ (Component lightweightChild, boolean temporary,
185+ boolean focusedWindowChangeAllowed, long time, CausedFocusEvent.Cause cause) {
186+ return false;
187+ }
188+
189+ public Image createImage(ImageProducer producer) {
190+ return null;
191+ }
192+
193+ public Image createImage(int width, int height) {
194+ return null;
195+ }
196+
197+ public boolean prepareImage(Image img, int w, int h, ImageObserver o) {
198+ return false;
199+ }
200+
201+ public int checkImage(Image img, int w, int h, ImageObserver o) {
202+ return 0;
203+ }
204+
205+ public Dimension preferredSize() {
206+ return getPreferredSize();
207+ }
208+
209+ public Dimension minimumSize() {
210+ return getMinimumSize();
211+ }
212+
213+ public Point getLocationOnScreen() {
214+ return new Point(0,0);
215+ }
216+
217+ public Insets getInsets() {
218+ return insets();
219+ }
220+
221+ public void beginValidate() {
222+ }
223+
224+ public void endValidate() {
225+ }
226+
227+ public Insets insets() {
228+ return new Insets(0, 0, 0, 0);
229+ }
230+
231+ public boolean isPaintPending() {
232+ return false;
233+ }
234+
235+ public boolean handlesWheelScrolling() {
236+ return false;
237+ }
238+
239+ public VolatileImage createVolatileImage(int width, int height) {
240+ return null;
241+ }
242+
243+ public void beginLayout() {
244+ }
245+
246+ public void endLayout() {
247+ }
248+
249+ public void createBuffers(int numBuffers, BufferCapabilities caps)
250+ throws AWTException {
251+ throw new AWTException(
252+ "Page-flipping is not allowed on a lightweight component");
253+ }
254+ public Image getBackBuffer() {
255+ throw new IllegalStateException(
256+ "Page-flipping is not allowed on a lightweight component");
257+ }
258+ public void flip(int x1, int y1, int x2, int y2,
259+ BufferCapabilities.FlipContents flipAction)
260+ {
261+ throw new IllegalStateException(
262+ "Page-flipping is not allowed on a lightweight component");
263+ }
264+ public void destroyBuffers() {
265+ }
266+
267+ /**
268+ * @see java.awt.peer.ComponentPeer#isReparentSupported
269+ */
270+ public boolean isReparentSupported() {
271+ return false;
272+ }
273+
274+ /**
275+ * @see java.awt.peer.ComponentPeer#reparent
276+ */
277+ public void reparent(ContainerPeer newNativeParent) {
278+ throw new UnsupportedOperationException();
279+ }
280+
281+ public void layout() {
282+ }
283+
284+ public Rectangle getBounds() {
285+ return new Rectangle(0, 0, 0, 0);
286+ }
287+
288+
289+ /**
290+ * Applies the shape to the native component window.
291+ * @since 1.7
292+ */
293+ public void applyShape(Region shape) {
294+ }
295+
296+ /**
297+ * Lowers this component at the bottom of the above HW peer. If the above parameter
298+ * is null then the method places this component at the top of the Z-order.
299+ */
300+ public void setZOrder(ComponentPeer above) {
301+ }
302+
303+ public boolean updateGraphicsData(GraphicsConfiguration gc) {
304+ return false;
305+ }
306+
307+ public GraphicsConfiguration getAppropriateGraphicsConfiguration(
308+ GraphicsConfiguration gc)
309+ {
310+ return gc;
311+ }
312+}