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comparison org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/custom/AnimatedProgress.d @ 0:6dd524f61e62

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add dwt win and basic java stuff
author Frank Benoit <benoit@tionex.de>
date Mon, 02 Mar 2009 14:44:16 +0100
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children 9f4c18c268b2
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-1:000000000000 0:6dd524f61e62
1 /*******************************************************************************
2 * Copyright (c) 2000, 2008 IBM Corporation and others.
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 * IBM Corporation - initial API and implementation
10 * Port to the D programming language:
11 * Frank Benoit <benoit@tionex.de>
12 *******************************************************************************/
13 module org.eclipse.swt.custom.AnimatedProgress;
14
15
16 import org.eclipse.swt.SWT;
17 import org.eclipse.swt.SWTException;
18 import org.eclipse.swt.events.ControlAdapter;
19 import org.eclipse.swt.events.ControlEvent;
20 import org.eclipse.swt.events.DisposeEvent;
21 import org.eclipse.swt.events.DisposeListener;
22 import org.eclipse.swt.events.PaintEvent;
23 import org.eclipse.swt.events.PaintListener;
24 import org.eclipse.swt.graphics.Color;
25 import org.eclipse.swt.graphics.GC;
26 import org.eclipse.swt.graphics.Point;
27 import org.eclipse.swt.graphics.Rectangle;
28 import org.eclipse.swt.widgets.Canvas;
29 import org.eclipse.swt.widgets.Composite;
30 import org.eclipse.swt.widgets.Display;
31 import java.lang.Runnable;
32
33 /**
34 * A control for showing progress feedback for a long running operation.
35 *
36 * @deprecated As of Eclipse 2.1, use ProgressBar with the style SWT.INDETERMINATE
37 *
38 * <dl>
39 * <dt><b>Styles:</b><dd>VERTICAL, HORIZONTAL, BORDER
40 * </dl>
41 *
42 * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
43 */
44 public class AnimatedProgress : Canvas {
45
46 alias Canvas.computeSize computeSize;
47
48 static const int SLEEP = 70;
49 static const int DEFAULT_WIDTH = 160;
50 static const int DEFAULT_HEIGHT = 18;
51 bool active = false;
52 bool showStripes = false;
53 int value;
54 int orientation = SWT.HORIZONTAL;
55 bool showBorder = false;
56
57 /**
58 * Constructs a new instance of this class given its parent
59 * and a style value describing its behavior and appearance.
60 * <p>
61 * The style value is either one of the style constants defined in
62 * class <code>SWT</code> which is applicable to instances of this
63 * class, or must be built by <em>bitwise OR</em>'ing together
64 * (that is, using the <code>int</code> "|" operator) two or more
65 * of those <code>SWT</code> style constants. The class description
66 * lists the style constants that are applicable to the class.
67 * Style bits are also inherited from superclasses.
68 * </p>
69 *
70 * @param parent a widget which will be the parent of the new instance (cannot be null)
71 * @param style the style of widget to construct
72 *
73 * @exception IllegalArgumentException <ul>
74 * <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
75 * </ul>
76 * @exception SWTException <ul>
77 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
78 * </ul>
79 *
80 * @see SWT#VERTICAL
81 * @see SWT#HORIZONTAL
82 * @see SWT#BORDER
83 * @see #getStyle()
84 */
85 public this(Composite parent, int style) {
86 super(parent, checkStyle(style));
87
88 if ((style & SWT.VERTICAL) !is 0) {
89 orientation = SWT.VERTICAL;
90 }
91 showBorder = (style & SWT.BORDER) !is 0;
92
93 addControlListener(new class() ControlAdapter {
94 public void controlResized(ControlEvent e) {
95 redraw();
96 }
97 });
98 addPaintListener(new class() PaintListener {
99 public void paintControl(PaintEvent e) {
100 paint(e);
101 }
102 });
103 addDisposeListener(new class() DisposeListener {
104 public void widgetDisposed(DisposeEvent e){
105 stop();
106 }
107 });
108 }
109 private static int checkStyle (int style) {
110 int mask = SWT.NONE;
111 return style & mask;
112 }
113 /**
114 * Stop the animation if it is not already stopped and
115 * reset the presentation to a blank appearance.
116 *
117 * @exception SWTException <ul>
118 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
119 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
120 * </ul>
121 */
122 public synchronized void clear(){
123 checkWidget();
124 if (active) stop();
125 showStripes = false;
126 redraw();
127 }
128 public override Point computeSize(int wHint, int hHint, bool changed) {
129 checkWidget();
130 Point size = null;
131 if (orientation is SWT.HORIZONTAL) {
132 size = new Point(DEFAULT_WIDTH, DEFAULT_HEIGHT);
133 } else {
134 size = new Point(DEFAULT_HEIGHT, DEFAULT_WIDTH);
135 }
136 if (wHint !is SWT.DEFAULT) size.x = wHint;
137 if (hHint !is SWT.DEFAULT) size.y = hHint;
138
139 return size;
140 }
141 private void drawBevelRect(GC gc, int x, int y, int w, int h, Color topleft, Color bottomright) {
142 gc.setForeground(topleft);
143 gc.drawLine(x, y, x+w-1, y);
144 gc.drawLine(x, y, x, y+h-1);
145
146 gc.setForeground(bottomright);
147 gc.drawLine(x+w, y, x+w, y+h);
148 gc.drawLine(x, y+h, x+w, y+h);
149 }
150 void paint(PaintEvent event) {
151 GC gc = event.gc;
152 Display disp= getDisplay();
153
154 Rectangle rect= getClientArea();
155 gc.fillRectangle(rect);
156 if (showBorder) {
157 drawBevelRect(gc, rect.x, rect.y, rect.width-1, rect.height-1,
158 disp.getSystemColor(SWT.COLOR_WIDGET_NORMAL_SHADOW),
159 disp.getSystemColor(SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW));
160 }
161
162 paintStripes(gc);
163 }
164 void paintStripes(GC gc) {
165
166 if (!showStripes) return;
167
168 Rectangle rect= getClientArea();
169 // Subtracted border painted by paint.
170 rect = new Rectangle(rect.x+2, rect.y+2, rect.width-4, rect.height-4);
171
172 gc.setLineWidth(2);
173 gc.setClipping(rect);
174 Color color = getDisplay().getSystemColor(SWT.COLOR_LIST_SELECTION);
175 gc.setBackground(color);
176 gc.fillRectangle(rect);
177 gc.setForeground(this.getBackground());
178 int step = 12;
179 int foregroundValue = value is 0 ? step - 2 : value - 2;
180 if (orientation is SWT.HORIZONTAL) {
181 int y = rect.y - 1;
182 int w = rect.width;
183 int h = rect.height + 2;
184 for (int i= 0; i < w; i+= step) {
185 int x = i + foregroundValue;
186 gc.drawLine(x, y, x, h);
187 }
188 } else {
189 int x = rect.x - 1;
190 int w = rect.width + 2;
191 int h = rect.height;
192
193 for (int i= 0; i < h; i+= step) {
194 int y = i + foregroundValue;
195 gc.drawLine(x, y, w, y);
196 }
197 }
198
199 if (active) {
200 value = (value + 2) % step;
201 }
202 }
203 /**
204 * Start the animation.
205 *
206 * @exception SWTException <ul>
207 * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
208 * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
209 * </ul>
210 */
211 public synchronized void start() {
212 checkWidget();
213 if (active) return;
214
215 active = true;
216 showStripes = true;
217
218 Display display = getDisplay();
219 Runnable [] timer = new Runnable [1];
220
221 timer [0] = new class( display, timer ) Runnable {
222 Display disp;
223 Runnable [] runs;
224 this( Display disp, Runnable[] runs ){
225 this.disp = disp;
226 this.runs = runs;
227 }
228 public void run () {
229 if (!active) return;
230 GC gc = new GC(this.outer);
231 paintStripes(gc);
232 gc.dispose();
233 disp.timerExec (SLEEP, runs [0]);
234 }
235 };
236 display.timerExec (SLEEP, timer [0]);
237 }
238 /**
239 * Stop the animation. Freeze the presentation at its current appearance.
240 */
241 public synchronized void stop() {
242 //checkWidget();
243 active = false;
244 }
245 }