1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
10 import java.awt.datatransfer.*;
11 import java.awt.image.*;
12 import java.awt.event.*;
14 /** Platform subclass for all VM's providing AWT 1.1 functionality */
15 public class AWT extends Platform {
17 protected String getDescriptiveName() { return "Generic JDK 1.1+ with AWT"; }
18 protected DoubleBuffer _createDoubleBuffer(int w, int h, Surface owner) { return new AWTDoubleBuffer(w, h); }
19 protected Picture _createPicture(int[] b, int w, int h) { return new AWTPicture(b, w, h); }
20 protected int _getScreenWidth() { return Toolkit.getDefaultToolkit().getScreenSize().width; }
21 protected int _getScreenHeight() { return Toolkit.getDefaultToolkit().getScreenSize().height; }
22 protected Surface _createSurface(Box b, boolean framed) { return new AWTSurface(b, framed); }
23 protected int _stringWidth(String font, String text) { return getFont(font).metrics.stringWidth(text); }
24 protected int _getMaxAscent(String font) { return getFont(font).metrics.getMaxAscent(); }
25 protected int _getMaxDescent(String font) { return getFont(font).metrics.getMaxDescent(); }
26 protected boolean _supressDirtyOnResize() { return false; }
28 protected void postInit() {
29 if (Log.on) Log.log(Platform.class, " color depth = " + Toolkit.getDefaultToolkit().getColorModel().getPixelSize() + "bpp");
32 protected void _criticalAbort(String message) {
33 if (Log.on) Log.log(this, message);
34 final Dialog d = new Dialog(new Frame(), "XWT Cannot Continue");
35 d.setLayout(new BorderLayout());
36 TextArea ta = new TextArea("XWT cannot continue because:\n\n" + message, 10, 80);
37 ta.setEditable(false);
39 Button b = new Button("OK");
40 b.addActionListener(new ActionListener() {
41 public void actionPerformed(ActionEvent e) {
49 new Semaphore().block();
52 protected String _getClipBoard() {
53 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
54 if (cb == null) return null;
55 Transferable clipdata = cb.getContents(null);
56 try { return (String)clipdata.getTransferData(DataFlavor.stringFlavor); } catch (Exception ex) { return null; }
59 protected void _setClipBoard(String s) {
60 Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
61 if (clipboard == null) return;
62 StringSelection clipString = new StringSelection(s);
63 clipboard.setContents(clipString, clipString);
66 /** some platforms (cough, cough, NetscapeVM) have totally broken modifier masks; they will need to override this */
67 protected static int modifiersToButtonNumber(int modifiers) {
68 if ((modifiers & InputEvent.BUTTON1_MASK) == InputEvent.BUTTON1_MASK) return 1;
69 if ((modifiers & InputEvent.BUTTON2_MASK) == InputEvent.BUTTON2_MASK) {
70 // ugh, MacOSX reports the right mouse button as BUTTON2_MASK...
71 if (System.getProperty("os.name", "").startsWith("Mac OS X")) return 2;
74 if ((modifiers & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK) {
75 // ugh, MacOSX reports the right mouse button as BUTTON2_MASK...
76 if (System.getProperty("os.name", "").startsWith("Mac OS X")) return 3;
82 static class FileDialogHelper extends FileDialog implements WindowListener, ComponentListener {
84 public FileDialogHelper(String suggestedFileName, Semaphore s, boolean write) {
85 super(new Frame(), write ? "Save" : "Open", write ? FileDialog.SAVE : FileDialog.LOAD);
87 addWindowListener(this);
88 addComponentListener(this);
89 if (suggestedFileName.indexOf(File.separatorChar) == -1) {
90 setFile(suggestedFileName);
92 setDirectory(suggestedFileName.substring(0, suggestedFileName.lastIndexOf(File.separatorChar)));
93 setFile(suggestedFileName.substring(suggestedFileName.lastIndexOf(File.separatorChar) + 1));
97 public void windowActivated(WindowEvent e) { }
98 public void windowClosed(WindowEvent e) { s.release(); }
99 public void windowClosing(WindowEvent e) { }
100 public void windowDeactivated(WindowEvent e) { }
101 public void windowDeiconified(WindowEvent e) { }
102 public void windowIconified(WindowEvent e) { }
103 public void windowOpened(WindowEvent e) { }
104 public void componentHidden(ComponentEvent e) { s.release(); }
105 public void componentMoved(ComponentEvent e) { }
106 public void componentResized(ComponentEvent e) { }
107 public void componentShown(ComponentEvent e) { }
110 protected String _fileDialog(String suggestedFileName, boolean write) {
111 final Semaphore s = new Semaphore();
112 FileDialogHelper fd = new FileDialogHelper(suggestedFileName, s, write);
114 return fd.getDirectory() + File.separatorChar + fd.getFile();
118 // Inner Classes /////////////////////////////////////////////////////////////////////////////////////
120 protected static class AWTPicture extends Picture {
121 public int getHeight() { return i.getHeight(null); }
122 public int getWidth() { return i.getWidth(null); }
123 public int[] getData() { return data; }
126 public Image i = null;
127 private static ColorModel cmodel = new DirectColorModel(32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000);
129 public AWTPicture(int[] b, int w, int h) {
131 Image img = Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(w, h, cmodel, b, 0, w));
132 MediaTracker mediatracker = new MediaTracker(new Canvas());
133 mediatracker.addImage(img, 1);
134 try { mediatracker.waitForAll(); } catch (InterruptedException e) { }
135 mediatracker.removeImage(img);
140 protected static class AWTDoubleBuffer extends DoubleBuffer {
142 protected Image i = null;
143 protected Graphics g = null;
145 /** JDK1.1 platforms require that a component be associated with each off-screen buffer */
146 static Component component = null;
148 protected AWTDoubleBuffer() { }
149 public AWTDoubleBuffer(int w, int h) {
150 synchronized(AWTDoubleBuffer.class) {
151 if (component == null) {
152 component = new Frame();
153 component.setVisible(false);
154 component.addNotify();
157 i = component.createImage(w, h);
161 public int getHeight() { return i == null ? 0 : i.getHeight(null); }
162 public int getWidth() { return i == null ? 0 : i.getWidth(null); }
163 public void setClip(int x, int y, int x2, int y2) { g.setClip(x, y, x2 - x, y2 - y); }
165 public void drawPicture(Picture source, int x, int y) {
166 drawPicture(source, x, y, x + source.getWidth(), y + source.getHeight(), 0, 0, source.getWidth(), source.getHeight());
169 public void drawPicture(Picture source, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2) {
170 g.drawImage(((AWTPicture)source).i, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, null);
173 public void drawString(String font, String text, int x, int y, int argb) {
174 // FEATURE: use an LRU cache for Color objects
175 g.setColor(new Color((argb & 0x00FF0000) >> 16, (argb & 0x0000FF00) >> 8, (argb & 0x000000FF)));
176 g.setFont(getFont(font));
177 g.drawString(text, x, y + 2);
180 public void fillRect(int x, int y, int x2, int y2, int argb) {
181 // FEATURE: use an LRU cache for Color objects
182 g.setColor(new Color((argb & 0x00FF0000) >> 16, (argb & 0x0000FF00) >> 8, (argb & 0x000000FF)));
183 g.fillRect(x, y, x2 - x, y2 - y);
189 protected static class AWTSurface extends Surface
190 implements MouseListener, MouseMotionListener, KeyListener, ComponentListener, WindowListener {
192 public void blit(DoubleBuffer s, int sx, int sy, int dx, int dy, int dx2, int dy2) {
193 if (ourGraphics == null) ourGraphics = window.getGraphics();
194 ourGraphics.drawImage(((AWTDoubleBuffer)s).i, dx + insets.left, dy + insets.top, dx2 + insets.left, dy2 + insets.top,
195 sx, sy, sx + (dx2 - dx), sy + (dy2 - dy), null);
198 /** if (component instanceof Frame) then frame == window else frame == null */
200 Window window = null;
202 /** our component's insets */
203 protected Insets insets = new Insets(0, 0, 0, 0);
205 /** a Graphics context on <code>window</code> */
206 protected Graphics ourGraphics = null;
208 /** some JDKs let us recycle a single Dimension object when calling getSize() */
209 Dimension singleSize = new Dimension();
211 public void toBack() { if (window != null) window.toBack(); }
212 public void toFront() { if (window != null) window.toFront(); }
213 public void setLocation(int x, int y) { window.setLocation(x, y); }
214 public void setTitleBarText(String s) { if (frame != null) frame.setTitle(s); }
215 public void setIcon(Picture i) { if (frame != null) frame.setIconImage(((AWTPicture)i).i); }
216 public void setSize(int width, int height) { window.setSize(width + (insets.left + insets.right), height + (insets.top + insets.bottom)); }
217 public void setInvisible(boolean b) { window.setVisible(!b); }
218 protected void _setMinimized(boolean b) { if (Log.on) Log.log(this, "JDK 1.1 platforms cannot minimize or unminimize windows"); }
219 protected void _setMaximized(boolean b) {
221 if (Log.on) Log.log(this, "JDK 1.1 platforms cannot unmaximize windows");
224 window.setLocation(new Point(0, 0));
225 window.setSize(Toolkit.getDefaultToolkit().getScreenSize());
228 class InnerFrame extends Frame {
229 public InnerFrame() throws java.lang.UnsupportedOperationException { }
230 public void update(Graphics gr) { paint(gr); }
231 public void paint(Graphics gr) {
232 Rectangle r = gr.getClipBounds();
234 // ugly hack for Java1.4 dynamicLayout on Win32 -- this catches expansions during smooth resize
235 int newwidth = Math.max(r.x - insets.left + r.width, root.width);
236 int newheight = Math.max(r.y - insets.top + r.height, root.height);
237 if (newwidth > root.width || newheight > root.height)
238 componentResized(window.getWidth() - insets.left - insets.right, window.getHeight() - insets.top - insets.bottom);
240 Dirty(r.x - insets.left, r.y - insets.top, r.width, r.height);
244 class InnerWindow extends Window {
245 public InnerWindow() throws java.lang.UnsupportedOperationException { super(new Frame()); }
246 public void update(Graphics gr) { paint(gr); }
247 public void paint(Graphics gr) {
248 Rectangle r = gr.getClipBounds();
249 Dirty(r.x - insets.left, r.y - insets.top, r.width, r.height);
253 AWTSurface(Box root, boolean framed) {
256 if (framed) window = frame = new InnerFrame();
257 else window = new InnerWindow();
259 // this is here to catch HeadlessException on jdk1.4
260 } catch (java.lang.UnsupportedOperationException e) {
261 if (Log.on) Log.log(this, "Exception thrown in AWTSurface$InnerFrame() -- this should never happen");
262 if (Log.on) Log.log(this, e);
265 insets = window.getInsets();
267 window.addMouseListener(this);
268 window.addKeyListener(this);
269 window.addComponentListener(this);
270 window.addMouseMotionListener(this);
271 window.addWindowListener(this);
273 // IMPORTANT: this must be called before render() to ensure
274 // that our peer has been created
278 protected void makeVisible() { window.setVisible(true); }
280 public void _dispose() {
281 window.removeMouseListener(this);
283 // removed to work around a jdk1.3 bug
284 /* window.removeKeyListener(this); */
286 window.removeComponentListener(this);
287 window.removeMouseMotionListener(this);
288 window.removeWindowListener(this);
292 public void syncCursor() {
293 if (cursor.equals("crosshair")) window.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
294 else if (cursor.equals("east")) window.setCursor(Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR));
295 else if (cursor.equals("move")) window.setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
296 else if (cursor.equals("north")) window.setCursor(Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR));
297 else if (cursor.equals("northeast")) window.setCursor(Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR));
298 else if (cursor.equals("northwest")) window.setCursor(Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR));
299 else if (cursor.equals("south")) window.setCursor(Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR));
300 else if (cursor.equals("southeast")) window.setCursor(Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR));
301 else if (cursor.equals("southwest")) window.setCursor(Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR));
302 else if (cursor.equals("text")) window.setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR));
303 else if (cursor.equals("west")) window.setCursor(Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR));
304 else if (cursor.equals("wait")) window.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
305 else if (cursor.equals("hand")) window.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
306 else window.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
309 // AWT Message translation ////////////////////////////////////////////////////////////////
311 // these functions are all executed in the AWT thread, not the
312 // MessageQueue thread. As a result, they must be *extremely*
313 // careful about invoking methods on instances of Box. Currently,
314 // they should only enqueue messages, use Box.whoIs()
315 // (unsynchronized but thought to be safe), and modify members of
318 public void componentHidden(ComponentEvent e) { }
319 public void componentShown(ComponentEvent e) { }
320 public void windowOpened(WindowEvent e) { }
321 public void windowClosed(WindowEvent e) { }
322 public void windowClosing(WindowEvent e) { Close(); }
323 public void windowIconified(WindowEvent e) { Minimized(true); }
324 public void windowDeiconified(WindowEvent e) { dirty(0, 0, root.width, root.height); Minimized(false); }
325 public void windowActivated(WindowEvent e) { Focused(true); }
326 public void windowDeactivated(WindowEvent e) { Focused(false); }
327 public void componentMoved(ComponentEvent e) { PosChange(window.getLocation().x + insets.left, window.getLocation().y + insets.top); }
329 public void componentResized(ComponentEvent e) {
330 // we have to periodically do this; I don't know why
331 insets = window.getInsets();
332 componentResized(window.getWidth() - insets.left - insets.right, window.getHeight() - insets.top - insets.bottom);
335 public void componentResized(int newwidth, int newheight) {
336 int oldwidth = root.width;
337 int oldheight = root.height;
338 SizeChange(newwidth, newheight);
340 // we do this because JVMs which don't clear the background won't force repaints of these areas
341 root.dirty(Math.min(oldwidth, newwidth), 0, Math.abs(oldwidth - newwidth), Math.max(oldheight, newheight));
342 root.dirty(0, Math.min(oldheight, newheight), Math.max(oldwidth, newwidth), Math.abs(oldheight - newheight));
347 public void keyTyped(KeyEvent k) { }
348 public void keyPressed(KeyEvent k) { KeyPressed(translateKey(k)); }
349 public void keyReleased(KeyEvent k) { KeyReleased(translateKey(k)); }
350 public void mouseExited(MouseEvent m) { mouseMoved(m); }
351 public void mouseEntered(MouseEvent m) { mouseMoved(m); }
352 public void mouseDragged(MouseEvent m) { mouseMoved(m); }
353 public void mouseMoved(MouseEvent m) {
355 // ugly hack for Java1.4 dynamicLayout on Win32 -- this catches contractions during smooth resize
356 int newwidth = window.getWidth() - insets.left - insets.right;
357 int newheight = window.getHeight() - insets.top - insets.bottom;
358 if (newwidth != root.width || newheight != root.height) componentResized(newwidth, newheight);
360 Move(m.getX() - insets.left, m.getY() - insets.top);
362 public void mousePressed(MouseEvent m) { Press(modifiersToButtonNumber(m.getModifiers())); }
363 public void mouseReleased(MouseEvent m) { Release(modifiersToButtonNumber(m.getModifiers())); }
364 public void mouseClicked(MouseEvent m) {
365 if (m.getClickCount() == 2) DoubleClick(modifiersToButtonNumber(m.getModifiers()));
366 else Click(modifiersToButtonNumber(m.getModifiers()));
369 String translateKey(KeyEvent k) {
370 switch (k.getKeyCode()) {
371 case KeyEvent.VK_ALT: return "alt";
372 case KeyEvent.VK_BACK_SPACE: return "back_space";
373 case KeyEvent.VK_CONTROL: return "control";
374 case KeyEvent.VK_DELETE: return "delete";
375 case KeyEvent.VK_DOWN: return "down";
376 case KeyEvent.VK_END: return "end";
377 case KeyEvent.VK_ENTER: return "enter";
378 case KeyEvent.VK_ESCAPE: return "escape";
379 case KeyEvent.VK_F1: return "f1";
380 case KeyEvent.VK_F10: return "f10";
381 case KeyEvent.VK_F11: return "f11";
382 case KeyEvent.VK_F12: return "f12";
383 case KeyEvent.VK_F2: return "f2";
384 case KeyEvent.VK_F3: return "f3";
385 case KeyEvent.VK_F4: return "f4";
386 case KeyEvent.VK_F5: return "f5";
387 case KeyEvent.VK_F6: return "f6";
388 case KeyEvent.VK_F7: return "f7";
389 case KeyEvent.VK_F8: return "f8";
390 case KeyEvent.VK_F9: return "f9";
391 case KeyEvent.VK_HOME: return "home";
392 case KeyEvent.VK_INSERT: return "insert";
393 case KeyEvent.VK_LEFT: return "left";
394 case KeyEvent.VK_META: return "alt";
395 case KeyEvent.VK_PAGE_DOWN: return "page_down";
396 case KeyEvent.VK_PAGE_UP: return "page_up";
397 case KeyEvent.VK_PAUSE: return "pause";
398 case KeyEvent.VK_PRINTSCREEN: return "printscreen";
399 case KeyEvent.VK_RIGHT: return "right";
400 case KeyEvent.VK_SHIFT: return "shift";
401 case KeyEvent.VK_TAB: return "tab";
402 case KeyEvent.VK_UP: return "up";
404 char c = k.getKeyChar();
405 if (c >= 1 && c <= 26) c = (char)('a' + c - 1);
406 return String.valueOf(c);
411 protected ImageDecoder _decodeJPEG(InputStream is, String name) {
413 Image i = Toolkit.getDefaultToolkit().createImage(org.xwt.Resources.isToByteArray(is));
414 MediaTracker mediatracker = new MediaTracker(new Canvas());
415 mediatracker.addImage(i, 1);
416 try { mediatracker.waitForAll(); } catch (InterruptedException e) { }
417 mediatracker.removeImage(i);
418 final int width = i.getWidth(null);
419 final int height = i.getHeight(null);
420 final int[] data = new int[width * height];
421 PixelGrabber pg = new PixelGrabber(i, 0, 0, width, height, data, 0, width);
423 if ((pg.getStatus() & ImageObserver.ABORT) != 0) {
424 Log.log(this, "PixelGrabber reported an error while decoding JPEG image " + name);
427 return new ImageDecoder() {
428 public int getWidth() { return width; }
429 public int getHeight() { return height; }
430 public int[] getData() { return data; }
432 } catch (Exception e) {
433 Log.log(this, "Exception caught while decoding JPEG image " + name);
439 // Font Handling Stuff //////////////////////////////////////////////////////////
441 protected String[] _listFonts() { return fontList; }
442 private static String[] fontList;
445 String[] awtfonts = Toolkit.getDefaultToolkit().getFontList();
446 fontList = new String[awtfonts.length * 4];
447 for(int i=0; i<awtfonts.length; i++) {
448 fontList[i * 4] = awtfonts[i] + "*";
449 fontList[i * 4 + 1] = awtfonts[i] + "*b";
450 fontList[i * 4 + 2] = awtfonts[i] + "*i";
451 fontList[i * 4 + 3] = awtfonts[i] + "*bi";
454 fontList = new String[] { };
457 private static Hash fontCache = new Hash();
458 private static ParsedFont pf = new ParsedFont();
459 private static MetricatedFont getFont(String font) {
460 MetricatedFont ret = (MetricatedFont)fontCache.get(font);
463 if (pf.name.equals("tty")) pf.name = "monospace";
465 // Java's fonts tend to be, on average, two points smaller than Win32/X11 fonts. This is most acute in
466 // the proxy password dialog on Linux
467 ret = new MetricatedFont(pf.name, (pf.bold ? Font.BOLD : 0) | (pf.italic ? Font.ITALIC : 0), pf.size + 2);
469 fontCache.put(font, ret);
474 private static class MetricatedFont extends Font {
475 public FontMetrics metrics = null;
476 public MetricatedFont(String name, int size, int style) {
477 super(name, size, style);
478 metrics = Toolkit.getDefaultToolkit().getFontMetrics(this);