1 | /*
|
---|
2 | * 12/23/2008
|
---|
3 | *
|
---|
4 | * SizeGrip.java - A size grip component that sits at the bottom of the window,
|
---|
5 | * allowing the user to easily resize that window.
|
---|
6 | *
|
---|
7 | * This library is distributed under a modified BSD license. See the included
|
---|
8 | * RSyntaxTextArea.License.txt file for details.
|
---|
9 | */
|
---|
10 | package org.fife.ui.rsyntaxtextarea.focusabletip;
|
---|
11 |
|
---|
12 | import java.awt.Color;
|
---|
13 | import java.awt.ComponentOrientation;
|
---|
14 | import java.awt.Cursor;
|
---|
15 | import java.awt.Dimension;
|
---|
16 | import java.awt.Graphics;
|
---|
17 | import java.awt.Image;
|
---|
18 | import java.awt.Point;
|
---|
19 | import java.awt.Window;
|
---|
20 | import java.awt.event.MouseEvent;
|
---|
21 | import java.io.File;
|
---|
22 | import java.io.IOException;
|
---|
23 | import java.net.MalformedURLException;
|
---|
24 | import java.net.URL;
|
---|
25 | import javax.imageio.ImageIO;
|
---|
26 | import javax.swing.JPanel;
|
---|
27 | import javax.swing.SwingUtilities;
|
---|
28 | import javax.swing.UIManager;
|
---|
29 | import javax.swing.event.MouseInputAdapter;
|
---|
30 |
|
---|
31 |
|
---|
32 | /**
|
---|
33 | * A component that allows its parent window to be resizable, similar to the
|
---|
34 | * size grip seen on status bars.
|
---|
35 | *
|
---|
36 | * @author Robert Futrell
|
---|
37 | * @version 1.0
|
---|
38 | */
|
---|
39 | class SizeGrip extends JPanel {
|
---|
40 |
|
---|
41 | /**
|
---|
42 | * The size grip to use if we're on OS X.
|
---|
43 | */
|
---|
44 | private Image osxSizeGrip;
|
---|
45 |
|
---|
46 |
|
---|
47 | public SizeGrip() {
|
---|
48 | MouseHandler adapter = new MouseHandler();
|
---|
49 | addMouseListener(adapter);
|
---|
50 | addMouseMotionListener(adapter);
|
---|
51 | setPreferredSize(new Dimension(16, 16));
|
---|
52 | }
|
---|
53 |
|
---|
54 |
|
---|
55 | /**
|
---|
56 | * Overridden to ensure that the cursor for this component is appropriate
|
---|
57 | * for the orientation.
|
---|
58 | *
|
---|
59 | * @param o The new orientation.
|
---|
60 | */
|
---|
61 | public void applyComponentOrientation(ComponentOrientation o) {
|
---|
62 | possiblyFixCursor(o.isLeftToRight());
|
---|
63 | super.applyComponentOrientation(o);
|
---|
64 | }
|
---|
65 |
|
---|
66 |
|
---|
67 | /**
|
---|
68 | * Creates and returns the OS X size grip image.
|
---|
69 | *
|
---|
70 | * @return The OS X size grip.
|
---|
71 | */
|
---|
72 | private Image createOSXSizeGrip() {
|
---|
73 | ClassLoader cl = getClass().getClassLoader();
|
---|
74 | URL url = cl.getResource("org/fife/ui/autocomplete/osx_sizegrip.png");
|
---|
75 | if (url==null) {
|
---|
76 | // We're not running in a jar - we may be debugging in Eclipse,
|
---|
77 | // for example
|
---|
78 | File f = new File("../AutoComplete/src/org/fife/ui/autocomplete/osx_sizegrip.png");
|
---|
79 | if (f.isFile()) {
|
---|
80 | try {
|
---|
81 | url = f.toURI().toURL();
|
---|
82 | } catch (MalformedURLException mue) { // Never happens
|
---|
83 | mue.printStackTrace();
|
---|
84 | return null;
|
---|
85 | }
|
---|
86 | }
|
---|
87 | else {
|
---|
88 | return null; // Can't find resource or image file
|
---|
89 | }
|
---|
90 | }
|
---|
91 | Image image = null;
|
---|
92 | try {
|
---|
93 | image = ImageIO.read(url);
|
---|
94 | } catch (IOException ioe) { // Never happens
|
---|
95 | ioe.printStackTrace();
|
---|
96 | }
|
---|
97 | return image;
|
---|
98 | }
|
---|
99 |
|
---|
100 |
|
---|
101 | /**
|
---|
102 | * Paints this panel.
|
---|
103 | *
|
---|
104 | * @param g The graphics context.
|
---|
105 | */
|
---|
106 | protected void paintComponent(Graphics g) {
|
---|
107 |
|
---|
108 | super.paintComponent(g);
|
---|
109 |
|
---|
110 | Dimension dim = getSize();
|
---|
111 | Color c1 = UIManager.getColor("Label.disabledShadow");
|
---|
112 | Color c2 = UIManager.getColor("Label.disabledForeground");
|
---|
113 |
|
---|
114 | if (osxSizeGrip!=null) {
|
---|
115 | g.drawImage(osxSizeGrip, dim.width-16, dim.height-16, null);
|
---|
116 | return;
|
---|
117 | }
|
---|
118 |
|
---|
119 | ComponentOrientation orientation = getComponentOrientation();
|
---|
120 |
|
---|
121 | if (orientation.isLeftToRight()) {
|
---|
122 | int width = dim.width -= 3;
|
---|
123 | int height = dim.height -= 3;
|
---|
124 | g.setColor(c1);
|
---|
125 | g.fillRect(width-9,height-1, 3,3);
|
---|
126 | g.fillRect(width-5,height-1, 3,3);
|
---|
127 | g.fillRect(width-1,height-1, 3,3);
|
---|
128 | g.fillRect(width-5,height-5, 3,3);
|
---|
129 | g.fillRect(width-1,height-5, 3,3);
|
---|
130 | g.fillRect(width-1,height-9, 3,3);
|
---|
131 | g.setColor(c2);
|
---|
132 | g.fillRect(width-9,height-1, 2,2);
|
---|
133 | g.fillRect(width-5,height-1, 2,2);
|
---|
134 | g.fillRect(width-1,height-1, 2,2);
|
---|
135 | g.fillRect(width-5,height-5, 2,2);
|
---|
136 | g.fillRect(width-1,height-5, 2,2);
|
---|
137 | g.fillRect(width-1,height-9, 2,2);
|
---|
138 | }
|
---|
139 | else {
|
---|
140 | int height = dim.height -= 3;
|
---|
141 | g.setColor(c1);
|
---|
142 | g.fillRect(10,height-1, 3,3);
|
---|
143 | g.fillRect(6,height-1, 3,3);
|
---|
144 | g.fillRect(2,height-1, 3,3);
|
---|
145 | g.fillRect(6,height-5, 3,3);
|
---|
146 | g.fillRect(2,height-5, 3,3);
|
---|
147 | g.fillRect(2,height-9, 3,3);
|
---|
148 | g.setColor(c2);
|
---|
149 | g.fillRect(10,height-1, 2,2);
|
---|
150 | g.fillRect(6,height-1, 2,2);
|
---|
151 | g.fillRect(2,height-1, 2,2);
|
---|
152 | g.fillRect(6,height-5, 2,2);
|
---|
153 | g.fillRect(2,height-5, 2,2);
|
---|
154 | g.fillRect(2,height-9, 2,2);
|
---|
155 | }
|
---|
156 |
|
---|
157 | }
|
---|
158 |
|
---|
159 |
|
---|
160 | /**
|
---|
161 | * Ensures that the cursor for this component is appropriate for the
|
---|
162 | * orientation.
|
---|
163 | *
|
---|
164 | * @param ltr Whether the current component orientation is LTR.
|
---|
165 | */
|
---|
166 | protected void possiblyFixCursor(boolean ltr) {
|
---|
167 | int cursor = Cursor.NE_RESIZE_CURSOR;
|
---|
168 | if (ltr) {
|
---|
169 | cursor = Cursor.NW_RESIZE_CURSOR;
|
---|
170 | }
|
---|
171 | if (cursor!=getCursor().getType()) {
|
---|
172 | setCursor(Cursor.getPredefinedCursor(cursor));
|
---|
173 | }
|
---|
174 | }
|
---|
175 |
|
---|
176 |
|
---|
177 | public void updateUI() {
|
---|
178 | super.updateUI();
|
---|
179 | // TODO: Key off of Aqua LaF, not just OS X, as this size grip looks
|
---|
180 | // bad on other LaFs on Mac such as Nimbus.
|
---|
181 | if (System.getProperty("os.name").indexOf("OS X")>-1) {
|
---|
182 | if (osxSizeGrip==null) {
|
---|
183 | osxSizeGrip = createOSXSizeGrip();
|
---|
184 | }
|
---|
185 | }
|
---|
186 | else { // Clear memory in case of runtime LaF change.
|
---|
187 | osxSizeGrip = null;
|
---|
188 | }
|
---|
189 |
|
---|
190 | }
|
---|
191 |
|
---|
192 |
|
---|
193 | /**
|
---|
194 | * Listens for mouse events on this panel and resizes the parent window
|
---|
195 | * appropriately.
|
---|
196 | *
|
---|
197 | * @author Robert Futrell
|
---|
198 | * @version 1.0
|
---|
199 | */
|
---|
200 | /*
|
---|
201 | * NOTE: We use SwingUtilities.convertPointToScreen() instead of just using
|
---|
202 | * the locations relative to the corner component because the latter proved
|
---|
203 | * buggy - stretch the window too wide and some kind of arithmetic error
|
---|
204 | * started happening somewhere - our window would grow way too large.
|
---|
205 | */
|
---|
206 | private class MouseHandler extends MouseInputAdapter {
|
---|
207 |
|
---|
208 | private Point origPos;
|
---|
209 |
|
---|
210 | public void mouseDragged(MouseEvent e) {
|
---|
211 | Point newPos = e.getPoint();
|
---|
212 | SwingUtilities.convertPointToScreen(newPos, SizeGrip.this);
|
---|
213 | int xDelta = newPos.x - origPos.x;
|
---|
214 | int yDelta = newPos.y - origPos.y;
|
---|
215 | Window wind = SwingUtilities.getWindowAncestor(SizeGrip.this);
|
---|
216 | if (wind!=null) { // Should always be true
|
---|
217 | if (getComponentOrientation().isLeftToRight()) {
|
---|
218 | int w = wind.getWidth();
|
---|
219 | if (newPos.x>=wind.getX()) {
|
---|
220 | w += xDelta;
|
---|
221 | }
|
---|
222 | int h = wind.getHeight();
|
---|
223 | if (newPos.y>=wind.getY()) {
|
---|
224 | h += yDelta;
|
---|
225 | }
|
---|
226 | wind.setSize(w,h);
|
---|
227 | }
|
---|
228 | else { // RTL
|
---|
229 | int newW = Math.max(1, wind.getWidth()-xDelta);
|
---|
230 | int newH = Math.max(1, wind.getHeight()+yDelta);
|
---|
231 | wind.setBounds(newPos.x, wind.getY(), newW, newH);
|
---|
232 | }
|
---|
233 | // invalidate()/validate() needed pre-1.6.
|
---|
234 | wind.invalidate();
|
---|
235 | wind.validate();
|
---|
236 | }
|
---|
237 | origPos.setLocation(newPos);
|
---|
238 | }
|
---|
239 |
|
---|
240 | public void mousePressed(MouseEvent e) {
|
---|
241 | origPos = e.getPoint();
|
---|
242 | SwingUtilities.convertPointToScreen(origPos, SizeGrip.this);
|
---|
243 | }
|
---|
244 |
|
---|
245 | public void mouseReleased(MouseEvent e) {
|
---|
246 | origPos = null;
|
---|
247 | }
|
---|
248 |
|
---|
249 | }
|
---|
250 |
|
---|
251 |
|
---|
252 | } |
---|