1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
6 import org.mozilla.javascript.*;
11 import java.awt.datatransfer.*;
12 import java.awt.image.*;
13 import java.awt.event.*;
16 /** Platform subclass for all VM's providing AWT 1.1 functionality */
17 public class AWT extends Platform {
19 protected String getDescriptiveName() { return "Generic JDK 1.1+ with AWT"; }
20 protected DoubleBuffer _createDoubleBuffer(int w, int h, Surface owner) { return new AWTDoubleBuffer(w, h); }
21 protected Picture _createPicture(int[] b, int w, int h) { return new AWTPicture(b, w, h); }
22 protected int _getScreenWidth() { return Toolkit.getDefaultToolkit().getScreenSize().width; }
23 protected int _getScreenHeight() { return Toolkit.getDefaultToolkit().getScreenSize().height; }
24 protected Surface _createSurface(Box b, boolean framed) { return new AWTSurface(b, framed); }
25 protected int _stringWidth(String font, String text) { return getFont(font).metrics.stringWidth(text); }
26 protected int _getMaxAscent(String font) { return getFont(font).metrics.getMaxAscent(); }
27 protected int _getMaxDescent(String font) { return getFont(font).metrics.getMaxDescent(); }
28 protected boolean _supressDirtyOnResize() { return true; }
30 protected void _criticalAbort(String message) {
31 if (Log.on) Log.log(this, message);
32 final Dialog d = new Dialog(new Frame(), "XWT Cannot Continue");
33 d.setLayout(new BorderLayout());
34 TextArea ta = new TextArea("XWT cannot continue because:\n\n" + message, 10, 80);
35 ta.setEditable(false);
37 Button b = new Button("OK");
38 b.addActionListener(new ActionListener() {
39 public void actionPerformed(ActionEvent e) {
47 new Semaphore().block();
50 protected String _getClipBoard() {
51 Clipboard cb = Toolkit.getDefaultToolkit().getSystemClipboard();
52 if (cb == null) return null;
53 Transferable clipdata = cb.getContents(null);
54 try { return (String)clipdata.getTransferData(DataFlavor.stringFlavor); } catch (Exception ex) { return null; }
57 protected void _setClipBoard(String s) {
58 Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
59 if (clipboard == null) return;
60 StringSelection clipString = new StringSelection(s);
61 clipboard.setContents(clipString, clipString);
64 /** some platforms (cough, cough, NetscapeVM) have totally broken modifier masks; they will need to override this */
65 protected static int modifiersToButtonNumber(int modifiers) {
66 if ((modifiers & InputEvent.BUTTON1_MASK) == InputEvent.BUTTON1_MASK) return 1;
67 if ((modifiers & InputEvent.BUTTON2_MASK) == InputEvent.BUTTON2_MASK) return 3;
68 if ((modifiers & InputEvent.BUTTON3_MASK) == InputEvent.BUTTON3_MASK) return 2;
72 static class FileDialogHelper extends FileDialog implements WindowListener, ComponentListener {
74 public FileDialogHelper(String suggestedFileName, Semaphore s, boolean write) {
75 super(new Frame(), write ? "Save" : "Open", write ? FileDialog.SAVE : FileDialog.LOAD);
77 addWindowListener(this);
78 addComponentListener(this);
79 if (suggestedFileName.indexOf(File.separatorChar) == -1) {
80 setFile(suggestedFileName);
82 setDirectory(suggestedFileName.substring(0, suggestedFileName.lastIndexOf(File.separatorChar)));
83 setFile(suggestedFileName.substring(suggestedFileName.lastIndexOf(File.separatorChar) + 1));
87 public void windowActivated(WindowEvent e) { }
88 public void windowClosed(WindowEvent e) { s.release(); }
89 public void windowClosing(WindowEvent e) { }
90 public void windowDeactivated(WindowEvent e) { }
91 public void windowDeiconified(WindowEvent e) { }
92 public void windowIconified(WindowEvent e) { }
93 public void windowOpened(WindowEvent e) { }
94 public void componentHidden(ComponentEvent e) { s.release(); }
95 public void componentMoved(ComponentEvent e) { }
96 public void componentResized(ComponentEvent e) { }
97 public void componentShown(ComponentEvent e) { }
100 protected String _fileDialog(String suggestedFileName, boolean write) {
101 final Semaphore s = new Semaphore();
102 FileDialogHelper fd = new FileDialogHelper(suggestedFileName, s, write);
104 return fd.getDirectory() + File.separatorChar + fd.getFile();
108 // Inner Classes /////////////////////////////////////////////////////////////////////////////////////
110 protected static class AWTPicture implements Picture {
111 public int getHeight() { return i.getHeight(null); }
112 public int getWidth() { return i.getWidth(null); }
113 public int[] getData() { return data; }
116 public Image i = null;
117 private static MediaTracker mediatracker = new MediaTracker(new Canvas());
118 private static ColorModel cmodel = new DirectColorModel(32, 0x00FF0000, 0x0000FF00, 0x000000FF, 0xFF000000);
120 public AWTPicture(int[] b, int w, int h) {
122 Image img = Toolkit.getDefaultToolkit().createImage(new MemoryImageSource(w, h, cmodel, b, 0, w));
123 mediatracker.addImage(img, 1);
124 try { mediatracker.waitForAll(); } catch (InterruptedException e) { }
125 mediatracker.removeImage(img);
130 protected static class AWTDoubleBuffer implements DoubleBuffer {
132 protected Image i = null;
133 protected Graphics g = null;
135 /** JDK1.1 platforms require that a component be associated with each off-screen buffer */
136 static Component component = null;
138 protected AWTDoubleBuffer() { }
139 public AWTDoubleBuffer(int w, int h) {
140 synchronized(AWTDoubleBuffer.class) {
141 if (component == null) {
142 component = new Frame();
143 component.setVisible(false);
144 component.addNotify();
147 i = component.createImage(w, h);
151 public int getHeight() { return i == null ? 0 : i.getHeight(null); }
152 public int getWidth() { return i == null ? 0 : i.getWidth(null); }
153 public void setClip(int x, int y, int x2, int y2) { g.setClip(x, y, x2 - x, y2 - y); }
155 public void drawPicture(Picture source, int x, int y) {
156 drawPicture(source, x, y, x + source.getWidth(), y + source.getHeight(), 0, 0, source.getWidth(), source.getHeight());
159 public void drawPicture(Picture source, int dx1, int dy1, int dx2, int dy2, int sx1, int sy1, int sx2, int sy2) {
160 g.drawImage(((AWTPicture)source).i, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2, null);
163 public void drawString(String font, String text, int x, int y, int argb) {
164 // FEATURE: use an LRU cache for Color objects
165 g.setColor(new Color((argb & 0x00FF0000) >> 16, (argb & 0x0000FF00) >> 8, (argb & 0x000000FF)));
166 g.setFont(getFont(font));
167 g.drawString(text, x, y + 2);
170 public void fillRect(int x, int y, int x2, int y2, int argb) {
171 // FEATURE: use an LRU cache for Color objects
172 g.setColor(new Color((argb & 0x00FF0000) >> 16, (argb & 0x0000FF00) >> 8, (argb & 0x000000FF)));
173 g.fillRect(x, y, x2 - x, y2 - y);
179 protected static class AWTSurface extends Surface
180 implements MouseListener, MouseMotionListener, KeyListener, ComponentListener, WindowListener {
182 public void blit(DoubleBuffer s, int sx, int sy, int dx, int dy, int dx2, int dy2) {
183 if (ourGraphics == null) ourGraphics = window.getGraphics();
184 ourGraphics.drawImage(((AWTDoubleBuffer)s).i, dx + insets.left, dy + insets.top, dx2 + insets.left, dy2 + insets.top,
185 sx, sy, sx + (dx2 - dx), sy + (dy2 - dy), null);
188 /** if (component instanceof Frame) then frame == window else frame == null */
190 Window window = null;
192 /** our component's insets */
193 protected Insets insets = new Insets(0, 0, 0, 0);
195 /** a Graphics context on <code>window</code> */
196 protected Graphics ourGraphics = null;
198 /** some JDKs let us recycle a single Dimension object when calling getSize() */
199 Dimension singleSize = new Dimension();
201 public void toBack() { if (window != null) window.toBack(); }
202 public void toFront() { if (window != null) window.toFront(); }
203 public void setLocation(int x, int y) { window.setLocation(x, y); }
204 public void setTitleBarText(String s) { if (frame != null) frame.setTitle(s); }
205 public void setIcon(Picture i) { if (frame != null) frame.setIconImage(((AWTPicture)i).i); }
206 public void setSize(int width, int height) { window.setSize(width + (insets.left + insets.right), height + (insets.top + insets.bottom)); }
207 public void setInvisible(boolean b) { window.setVisible(!b); }
208 protected void _setMinimized(boolean b) { if (Log.on) Log.log(this, "JDK 1.1 platforms cannot minimize or unminimize windows"); }
209 protected void _setMaximized(boolean b) {
211 if (Log.on) Log.log(this, "JDK 1.1 platforms cannot unmaximize windows");
214 window.setLocation(new Point(0, 0));
215 window.setSize(Toolkit.getDefaultToolkit().getScreenSize());
218 class InnerFrame extends Frame {
219 public InnerFrame() throws java.lang.UnsupportedOperationException { }
220 public void update(Graphics gr) { paint(gr); }
221 public void paint(Graphics gr) {
222 Rectangle r = gr.getClipBounds();
224 // ugly hack for Java1.4 dynamicLayout on Win32 -- this catches expansions during smooth resize
225 int newwidth = Math.max(r.x - insets.left + r.width, width);
226 int newheight = Math.max(r.y - insets.top + r.height, height);
227 if (newwidth > width || newheight > height)
228 componentResized(window.getWidth() - insets.left - insets.right, window.getHeight() - insets.top - insets.bottom);
230 Dirty(r.x - insets.left, r.y - insets.top, r.width, r.height);
232 // this is safe because AWT's low-level drawing functions are threadsafe
233 blitDirtyScreenRegions();
237 class InnerWindow extends Window {
238 public InnerWindow() throws java.lang.UnsupportedOperationException { super(new Frame()); }
239 public void update(Graphics gr) { paint(gr); }
240 public void paint(Graphics gr) {
241 Rectangle r = gr.getClipBounds();
242 Dirty(r.x - insets.left, r.y - insets.top, r.width, r.height);
244 // this is safe because AWT's low-level drawing functions are threadsafe
245 blitDirtyScreenRegions();
249 AWTSurface(Box root, boolean framed) {
252 if (framed) window = frame = new InnerFrame();
253 else window = new InnerWindow();
255 // this is here to catch HeadlessException on jdk1.4
256 } catch (java.lang.UnsupportedOperationException e) {
257 if (Log.on) Log.log(this, "Exception thrown in AWTSurface$InnerFrame() -- this should never happen");
258 if (Log.on) Log.log(this, e);
261 insets = window.getInsets();
263 window.addMouseListener(this);
264 window.addKeyListener(this);
265 window.addComponentListener(this);
266 window.addMouseMotionListener(this);
267 window.addWindowListener(this);
269 // IMPORTANT: this must be called before render() to ensure
270 // that our peer has been created
271 window.setVisible(true);
275 public void _dispose() {
276 window.removeMouseListener(this);
278 // removed to work around a jdk1.3 bug
279 /* window.removeKeyListener(this); */
281 window.removeComponentListener(this);
282 window.removeMouseMotionListener(this);
283 window.removeWindowListener(this);
287 public void syncCursor() {
288 if (cursor.equals("crosshair")) window.setCursor(Cursor.getPredefinedCursor(Cursor.CROSSHAIR_CURSOR));
289 else if (cursor.equals("east")) window.setCursor(Cursor.getPredefinedCursor(Cursor.E_RESIZE_CURSOR));
290 else if (cursor.equals("move")) window.setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR));
291 else if (cursor.equals("north")) window.setCursor(Cursor.getPredefinedCursor(Cursor.N_RESIZE_CURSOR));
292 else if (cursor.equals("northeast")) window.setCursor(Cursor.getPredefinedCursor(Cursor.NE_RESIZE_CURSOR));
293 else if (cursor.equals("northwest")) window.setCursor(Cursor.getPredefinedCursor(Cursor.NW_RESIZE_CURSOR));
294 else if (cursor.equals("south")) window.setCursor(Cursor.getPredefinedCursor(Cursor.S_RESIZE_CURSOR));
295 else if (cursor.equals("southeast")) window.setCursor(Cursor.getPredefinedCursor(Cursor.SE_RESIZE_CURSOR));
296 else if (cursor.equals("southwest")) window.setCursor(Cursor.getPredefinedCursor(Cursor.SW_RESIZE_CURSOR));
297 else if (cursor.equals("text")) window.setCursor(Cursor.getPredefinedCursor(Cursor.TEXT_CURSOR));
298 else if (cursor.equals("west")) window.setCursor(Cursor.getPredefinedCursor(Cursor.W_RESIZE_CURSOR));
299 else if (cursor.equals("wait")) window.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
300 else if (cursor.equals("hand")) window.setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR));
301 else window.setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR));
304 // AWT Message translation ////////////////////////////////////////////////////////////////
306 // these functions are all executed in the AWT thread, not the
307 // MessageQueue thread. As a result, they must be *extremely*
308 // careful about invoking methods on instances of Box. Currently,
309 // they should only enqueue messages, use Box.whoIs()
310 // (unsynchronized but thought to be safe), and modify members of
313 public void componentHidden(ComponentEvent e) { }
314 public void componentShown(ComponentEvent e) { }
315 public void windowOpened(WindowEvent e) { }
316 public void windowClosed(WindowEvent e) { }
317 public void windowClosing(WindowEvent e) { Close(); }
318 public void windowIconified(WindowEvent e) { Minimized(true); }
319 public void windowDeiconified(WindowEvent e) { dirty(0, 0, width, height); Minimized(false); }
320 public void windowActivated(WindowEvent e) { Focused(true); }
321 public void windowDeactivated(WindowEvent e) { Focused(false); }
322 public void componentMoved(ComponentEvent e) { PosChange(window.getLocation().x, window.getLocation().y); }
324 public void componentResized(ComponentEvent e) {
325 // we have to periodically do this; I don't know why
326 insets = window.getInsets();
327 componentResized(window.getWidth() - insets.left - insets.right, window.getHeight() - insets.top - insets.bottom);
330 public void componentResized(int newwidth, int newheight) {
331 int oldwidth = width;
332 int oldheight = height;
333 SizeChange(newwidth, newheight);
335 // we do this because JVMs which don't clear the background won't force repaints of these areas
336 root.dirty(Math.min(oldwidth, newwidth), 0, Math.abs(oldwidth - newwidth), Math.max(oldheight, newheight));
337 root.dirty(0, Math.min(oldheight, newheight), Math.max(oldwidth, newwidth), Math.abs(oldheight - newheight));
342 public void keyTyped(KeyEvent k) { }
343 public void keyPressed(KeyEvent k) { KeyPressed(translateKey(k)); }
344 public void keyReleased(KeyEvent k) { KeyReleased(translateKey(k)); }
345 public void mouseExited(MouseEvent m) { mouseMoved(m); }
346 public void mouseEntered(MouseEvent m) { mouseMoved(m); }
347 public void mouseDragged(MouseEvent m) { mouseMoved(m); }
348 public void mouseMoved(MouseEvent m) {
350 // ugly hack for Java1.4 dynamicLayout on Win32 -- this catches contractions during smooth resize
351 int newwidth = window.getWidth() - insets.left - insets.right;
352 int newheight = window.getHeight() - insets.top - insets.bottom;
353 if (newwidth != width || newheight != height) componentResized(newwidth, newheight);
355 Move(m.getX() - insets.left, m.getY() - insets.top);
357 public void mousePressed(MouseEvent m) { Press(modifiersToButtonNumber(m.getModifiers())); }
358 public void mouseReleased(MouseEvent m) { Release(modifiersToButtonNumber(m.getModifiers())); }
359 public void mouseClicked(MouseEvent m) {
360 if (m.getClickCount() == 2) DoubleClick(modifiersToButtonNumber(m.getModifiers()));
361 else Click(modifiersToButtonNumber(m.getModifiers()));
364 String translateKey(KeyEvent k) {
365 switch (k.getKeyCode()) {
366 case KeyEvent.VK_ALT: return "alt";
367 case KeyEvent.VK_BACK_SPACE: return "back_space";
368 case KeyEvent.VK_CONTROL: return "control";
369 case KeyEvent.VK_DELETE: return "delete";
370 case KeyEvent.VK_DOWN: return "down";
371 case KeyEvent.VK_END: return "end";
372 case KeyEvent.VK_ENTER: return "enter";
373 case KeyEvent.VK_ESCAPE: return "escape";
374 case KeyEvent.VK_F1: return "f1";
375 case KeyEvent.VK_F10: return "f10";
376 case KeyEvent.VK_F11: return "f11";
377 case KeyEvent.VK_F12: return "f12";
378 case KeyEvent.VK_F2: return "f2";
379 case KeyEvent.VK_F3: return "f3";
380 case KeyEvent.VK_F4: return "f4";
381 case KeyEvent.VK_F5: return "f5";
382 case KeyEvent.VK_F6: return "f6";
383 case KeyEvent.VK_F7: return "f7";
384 case KeyEvent.VK_F8: return "f8";
385 case KeyEvent.VK_F9: return "f9";
386 case KeyEvent.VK_HOME: return "home";
387 case KeyEvent.VK_INSERT: return "insert";
388 case KeyEvent.VK_LEFT: return "left";
389 case KeyEvent.VK_META: return "alt";
390 case KeyEvent.VK_PAGE_DOWN: return "page_down";
391 case KeyEvent.VK_PAGE_UP: return "page_up";
392 case KeyEvent.VK_PAUSE: return "pause";
393 case KeyEvent.VK_PRINTSCREEN: return "printscreen";
394 case KeyEvent.VK_RIGHT: return "right";
395 case KeyEvent.VK_SHIFT: return "shift";
396 case KeyEvent.VK_TAB: return "tab";
397 case KeyEvent.VK_UP: return "up";
399 char c = k.getKeyChar();
400 if (c >= 1 && c <= 26) c = (char)('a' + c - 1);
401 return String.valueOf(c);
406 // Font Handling Stuff //////////////////////////////////////////////////////////
408 protected String[] _listFonts() { return fontList; }
409 private static String[] fontList;
411 String[] awtfonts = Toolkit.getDefaultToolkit().getFontList();
412 fontList = new String[awtfonts.length * 4];
413 for(int i=0; i<awtfonts.length; i++) {
414 fontList[i * 4] = awtfonts[i] + "*";
415 fontList[i * 4 + 1] = awtfonts[i] + "*b";
416 fontList[i * 4 + 2] = awtfonts[i] + "*i";
417 fontList[i * 4 + 3] = awtfonts[i] + "*bi";
421 private static Hash fontCache = new Hash();
422 private static ParsedFont pf = new ParsedFont();
423 private static MetricatedFont getFont(String font) {
424 MetricatedFont ret = (MetricatedFont)fontCache.get(font);
427 if (pf.name.equals("tty")) pf.name = "monospace";
428 ret = new MetricatedFont(pf.name, (pf.bold ? Font.BOLD : 0) | (pf.italic ? Font.ITALIC : 0), pf.size);
429 fontCache.put(font, ret);
434 private static class MetricatedFont extends Font {
435 public FontMetrics metrics = null;
436 public MetricatedFont(String name, int size, int style) {
437 super(name, size, style);
438 metrics = Toolkit.getDefaultToolkit().getFontMetrics(this);