1 // Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL]
4 // **** This file must be preprocessed before compilation ****
6 // RULE: coordinates on non-static methods are ALWAYS relative to the
7 // upper-left hand corner of <tt>this</tt>
9 // FIXME: font color, italicization, bolding, and underlining
11 // FIXME: fixed aspect
12 // FEATURE: reflow before allowing js to read from width/height
13 // FEATURE: fastpath for rows=1/cols=1
14 // FEATURE: reflow starting with a certain child
15 // FEATURE: separate mark_for_reflow and mark_for_resize
21 import org.xwt.util.*;
22 import org.xwt.translators.*;
26 * Encapsulates the data for a single XWT box as well as all layout
31 * This is the real meat of XWT. Part of its monolithic design is for
32 * performance reasons: deep inheritance heirarchies are slow, and
33 * neither javago nor GCJ can inline across class boundaries.
36 * <p>The rendering process consists of three phases; each requires
37 * one DFS pass over the tree</p>
39 * <ol><li> <b>repacking</b>: children of a box are packed into columns
40 * and rows according to their colspan/rowspan attributes and
41 * ordering. Minimum and maximum sizes of columns are computed.
43 * <li> <b>resizing</b>: width/height and x/y positions of children
44 * are assigned. If a PosChange or SizeChange is triggered,
45 * <tt>Surface.abort</tt> will be set and the resizing process will
48 * <li> <b>repainting</b>: children draw their content onto the
52 * The first two passes together are called the <i>reflow</i> phase.
54 * Reflowing is done in a seperate pass since PosChanges and
55 * SizeChanges trigger an Surface.abort; if rendering were done in the same
56 * pass, rendering work done prior to the Surface.abort would be wasted.
58 * The two passes are repack and resize. Together they are known as
59 * reflow. Repacking assigns boxes to the appropriate grid
60 * coordinates within the parents and computes
61 * contentwidth/contentheight. Resize computes actual size and
64 * A note on coordinates: the Box class represents regions
65 * internally as x,y,w,h tuples, even though the DoubleBuffer class
66 * uses x1,y1,x2,y2 tuples.
68 public final class Box extends JS.Scope {
70 public Box() { super(null); }
73 // Misc instance data ////////////////////////////////////////////////////////////////
75 private static int sizePosChangesSinceLastRender = 0;
78 // Misc instance data ////////////////////////////////////////////////////////////////
80 boolean needs_reflow = true;
81 //#define MARK_FOR_REFLOW_this for(Box b2 = this; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
82 //#define MARK_FOR_REFLOW_b for(Box b2 = b; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
83 //#define MARK_FOR_REFLOW_b_parent for(Box b2 = b.parent; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
86 Surface surface = null; // null on all non-root boxen
88 // FEATURE: combine this with the JSObject Hash
92 // Flags ///////////////////////////////////////////////////////////////////////////////
93 static int MOUSEINSIDE_FLAG = 0x00000001;
94 static int INVISIBLE_FLAG = 0x00000002;
95 static int ABSOLUTE_FLAG = 0x00000004;
96 static int HSHRINK_FLAG = 0x00000010;
97 static int VSHRINK_FLAG = 0x00000020;
98 static int TILE_FLAG = 0x00000040;
101 * Set when the font changes, cleared during repack. If set
102 * during repack, all font==null children are marked for reflow
103 * and given the font_changed_flag. We use this flag to avoid
104 * having to iterate over all descendents of a box when its font
107 static int FONT_CHANGED_FLAG = 0x00000100;
109 static int ALIGN_FLAG = 0x00000000;
110 static int FIXEDASPECT_FLAG = 0x00000000;
114 // Geometry ////////////////////////////////////////////////////////////////////////////
116 // xwt can be compiled with 16-bit lengths to save memory on small devices
118 //#define MAX_LENGTH Integer.MAX_VALUE
119 //#define MIN_LENGTH Integer.MIN_VALUE
121 // always correct (set directly by user)
123 LENGTH minheight = 0;
124 LENGTH maxwidth = MAX_LENGTH;
125 LENGTH maxheight = MAX_LENGTH;
126 private LENGTH hpad = 0;
127 private LENGTH vpad = 0;
128 private String text = null;
129 private String font = null;
130 private LENGTH textwidth = 0;
131 private LENGTH textheight = 0;
133 // FEATURE: use shorts
134 private int rows = 1;
135 private int cols = 0;
136 private int rowspan = 1;
137 private int colspan = 1;
139 // computed during reflow
142 public LENGTH width = 0;
143 public LENGTH height = 0;
144 private int row = 0; // FEATURE use a short
145 private int col = 0; // FEATURE use a short
146 private LENGTH contentwidth = 0; // == max(minwidth, textwidth+pad, sum(child.contentwidth) + pad)
147 private LENGTH contentheight = 0;
150 // Rendering Properties ///////////////////////////////////////////////////////////
152 //private SVG.VP path = null;
153 //private SVG.Paint fill = null;
154 //private SVG.Paint stroke = null;
156 private Picture image; // will disappear
157 private int fillcolor = 0x00000000; // will become SVG.Paint
158 private int strokecolor = 0xFF000000; // will become SVG.Paint
160 private String cursor = null; // the cursor for this box
163 // Instance Methods /////////////////////////////////////////////////////////////////////
165 /** Adds the intersection of (x,y,w,h) and the node's current actual geometry to the Surface's dirty list */
166 public final void dirty() { dirty(0, 0, width, height); }
167 public final void dirty(int x, int y, int w, int h) {
169 for(Box cur = this; cur != null; cur = cur.parent) {
170 w = min(x + w, cur.width) - max(x, 0);
171 h = min(y + h, cur.height) - max(y, 0);
174 if (w <= 0 || h <= 0) return;
175 if (cur.parent == null && cur.surface != null) cur.surface.dirty(x, y, w, h);
181 for(cur = this; cur.parent != null; cur = cur.parent);
182 if (cur.surface != null) cur.surface.dirty(0, 0, cur.width, cur.height);
186 * Given an old and new mouse position, this will update <tt>mouseinside</tt> and check
187 * to see if this node requires any Enter, Leave, or Move notifications.
189 * @param forceleave set to true by the box's parent if the mouse is inside an older
190 * sibling, which is covering up this box.
192 void Move(int oldmousex, int oldmousey, int mousex, int mousey) { Move(oldmousex, oldmousey, mousex, mousey, false); }
193 void Move(int oldmousex, int oldmousey, int mousex, int mousey, boolean forceleave) {
195 boolean wasinside = (flags & MOUSEINSIDE_FLAG) != 0;
196 boolean isinside = !((flags & INVISIBLE_FLAG) != 0) && inside(mousex, mousey) && !forceleave;
197 if (isinside) flags |= MOUSEINSIDE_FLAG; else flags &= ~MOUSEINSIDE_FLAG;
199 if (!wasinside && !isinside) return;
201 if (traps == null) { }
202 else if (!wasinside && isinside && traps.get("Enter") != null) put("Enter", Boolean.TRUE);
203 else if (wasinside && !isinside && traps.get("Leave") != null) put("Leave", Boolean.TRUE);
204 else if (wasinside && isinside && (mousex != oldmousex || mousey != oldmousey) && traps.get("Move") != null) put("Move", Boolean.TRUE);
206 if (isinside && cursor != null) getRoot().cursor = cursor;
208 // if the mouse has moved into our padding region, it is considered 'outside' all our children
209 if (!(mousex >= hpad && mousey >= vpad && mousex < width - hpad && mousey < height + vpad)) forceleave = true;
211 for(Box b = getChild(numChildren() - 1); b != null; b = b.prevSibling()) {
212 b.Move(oldmousex - b.x, oldmousey - b.y, mousex - b.x, mousey - b.y, forceleave);
213 if (b.inside(mousex - b.x, mousey - b.y)) forceleave = true;
218 // Reflow ////////////////////////////////////////////////////////////////////////////////////////
222 if (Surface.abort) return;
223 resize(x, y, width, height);
226 /** Checks if the Box's size has changed, dirties it if necessary, and makes sure childrens' sizes are up to date */
228 if (!needs_reflow) return;
229 if (numChildren() == 0) {
230 contentwidth = max(textwidth + 2 * hpad, minwidth);
231 contentheight = max(textheight + 2 * vpad, minheight);
235 // --- Phase 0 ----------------------------------------------------------------------
237 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
238 if (((flags & FONT_CHANGED_FLAG) != 0) && child.font == null) {
239 child.flags |= FONT_CHANGED_FLAG;
240 child.needs_reflow = true;
243 if (Surface.abort) { MARK_FOR_REFLOW_this; return; }
245 flags &= ~FONT_CHANGED_FLAG;
247 // --- Phase 1 ----------------------------------------------------------------------
248 // assign children to their row/column positions (assuming constrained columns)
249 if ((rows == 0 && cols == 0) || (rows != 0 && cols != 0)) throw new Error("rows == " + rows + " cols == " + cols);
250 //#repeat x/y y/x width/height col/row row/col cols/rows rows/cols colspan/rowspan rowspan/colspan colWidth/rowHeight numRowsInCol/numColsInRow INNER/INNER2 maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight OUTER/OUTER2 INNER/INNER2
252 int[] numRowsInCol = new int[cols]; // the number of cells occupied in each column
253 Box child = getChild(0);
254 for(; child != null && (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)); child = child.nextSibling());
255 OUTER: for(int row=0; child != null; row++) {
256 for(int col=0; child != null && col < cols;) {
257 INNER: while(true) { // scan across the row, looking for an unoccupied gap at least as wide as the child
258 while(col < cols && numRowsInCol[col] > row) col++;
259 for(int i=col; i < cols && i < col + min(cols, child.colspan); i++)
260 if (numRowsInCol[col] > row) { col = i + 1; continue INNER; }
263 if (col + min(cols, child.colspan) > cols) break;
264 for(int i=col; i < col + min(cols, child.colspan); i++) numRowsInCol[i] += child.rowspan;
267 col += min(cols, child.colspan);
268 child = child.nextSibling();
269 for(; child != null && (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)); child = child.nextSibling());
275 // --- Phase 2 ----------------------------------------------------------------------
276 // compute the min/max sizes of the columns and rows and set our contentwidth
277 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight numCols/numRows hpad/vpad
278 contentwidth = 2 * hpad;
281 for(Box child = getChild(0); child != null; child = child.nextSibling())
282 numCols = max(numCols, child.col + child.colspan);
283 LENGTH[] colWidth = new LENGTH[numCols];
284 for(Box child = getChild(0); child != null; child = child.nextSibling())
285 if (!(((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)))
286 colWidth[child.col] = max(colWidth[child.col], child.contentwidth / child.colspan);
287 for(int col=0; col<numCols; col++) contentwidth += colWidth[col];
288 contentwidth = max(textwidth + 2 * hpad, contentwidth);
289 contentwidth = bound(minwidth, contentwidth, maxwidth);
294 void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
296 // --- Phase 1 ----------------------------------------------------------------------
297 // run PosChange/SizeChange, dirty as needed
298 if (x != this.x || y != this.y || width != this.width || height != this.height) {
299 (parent == null ? this : parent).dirty(this.x, this.y, this.width, this.height);
300 boolean sizechange = false, poschange = false;
301 if (traps != null && (this.width != width || this.height != height) && traps.get("SizeChange") != null) sizechange = true;
302 if (traps != null && (this.x != x || this.y != y) && traps.get("PosChange") != null) poschange = true;
303 this.width = width; this.height = height; this.x = x; this.y = y;
305 if (sizechange || poschange)
306 if (sizePosChangesSinceLastRender == 500) {
307 if (Log.on) Log.logJS(this, "Warning, more than 500 SizeChange/PosChange traps triggered since last complete render");
309 sizePosChangesSinceLastRender++;
310 if (sizechange) put("SizeChange", Boolean.TRUE);
311 if (poschange) put("PosChange", Boolean.TRUE);
312 Surface.abort = true;
318 // --- short circuit ----------------------------------------------------------------
319 if (!needs_reflow) return;
320 needs_reflow = false;
321 if (numChildren() == 0) return;
323 // --- Phase 2 ----------------------------------------------------------------------
324 // compute the min/max sizes of the columns and rows and set initial width/height to minimums
326 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight marginWidth/marginHeight numCols/numRows
329 for(Box child = getChild(0); child != null; child = child.nextSibling())
330 numCols = max(numCols, child.col + child.colspan);
331 LENGTH[] colWidth = new LENGTH[numCols];
332 LENGTH[] colMaxWidth = new LENGTH[numCols];
333 int marginWidth = width;
334 for(int i=0; i<colMaxWidth.length; i++) colMaxWidth[i] = -1;
337 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
338 if (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)) continue;
339 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight HSHRINK_FLAG/VSHRINK_FLAG numCols/numRows
340 colWidth[child.col] = max(colWidth[child.col], child.contentwidth / child.colspan);
341 for(int i=child.col; i<child.col+child.colspan && i<numCols; i++)
342 colMaxWidth[i] = max(colMaxWidth[i], (((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : child.maxwidth) / child.colspan);
346 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight marginWidth/marginHeight
347 for(int i=0; i<colMaxWidth.length; i++) if (colMaxWidth[i] == -1) colMaxWidth[i] = MAX_LENGTH;
349 for(int i=0; i<colMaxWidth.length; i++) {
350 if (colMaxWidth[i] == MAX_LENGTH) { marginWidth = 0; break; }
351 marginWidth -= colMaxWidth[i];
352 if (marginWidth < 0) { marginWidth = 0; break; }
357 // --- Phase 3 ----------------------------------------------------------------------
358 // hand out the slack
360 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight numCols/numRows hpad/vpad
361 slack = width - 2 * hpad;
362 for(int i=0; i<numCols; i++) slack -= colWidth[i];
363 if (numChildren() > 0)
365 // FEATURE: inefficient
366 int startslack = slack;
367 int increment = max(1, slack / numCols);
368 for(int col=0; col < numCols && slack > 0; col++) {
369 slack += colWidth[col];
370 colWidth[col] = min(colMaxWidth[col], colWidth[col] + increment);
371 slack -= colWidth[col];
373 if (slack == startslack) break;
378 // --- Phase 4 ----------------------------------------------------------------------
379 // assign children's new sizes and positions and recurse
380 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
381 if ((child.flags & INVISIBLE_FLAG) != 0) continue;
382 int child_x = 0, child_y = 0, child_width = 0, child_height = 0;
383 if ((child.flags & ABSOLUTE_FLAG) != 0) {
386 child_width = ((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : min(child.maxwidth, width - child.x - hpad);
387 child_height = ((child.flags & VSHRINK_FLAG) != 0) ? child.contentheight : min(child.maxheight, height - child.y - vpad);
390 //#repeat x/y y/x width/height col/row cols/rows colspan/rowspan colWidth/rowHeight maxwidth/maxheight minwidth/minheight contentwidth/contentheight colMaxWidth/rowMaxHeight HSHRINK_FLAG/VSHRINK_FLAG marginWidth/marginHeight hpad/vpad child_x/child_y child_width/child_height
391 child_width = 0; for(int i=child.col; i<child.col+child.colspan && i<colWidth.length; i++) child_width += colWidth[i];
392 diff = bound(child.contentwidth, child_width, ((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : child.maxwidth) - child_width;
393 child_x = max(hpad, marginWidth / 2); for(int i=0; i<child.col; i++) child_x += colWidth[i];
394 if (diff < 0) child_x += -1 * (diff / 2);
398 child.resize(child_x, child_y, child_width, child_height);
405 // Rendering Pipeline /////////////////////////////////////////////////////////////////////
407 /** Renders self and children within the specified region. All rendering operations are clipped to xIn,yIn,wIn,hIn */
408 void render(int parentx, int parenty, int clipx, int clipy, int clipw, int cliph, DoubleBuffer buf) {
409 if (Surface.abort || (flags & INVISIBLE_FLAG) != 0) return;
410 int globalx = parentx + (parent == null ? 0 : x);
411 int globaly = parenty + (parent == null ? 0 : y);
413 // intersect the x,y,w,h rendering window with ourselves; quit if it's empty
414 clipw = min(max(clipx, parent == null ? 0 : globalx) + clipw,
415 (parent == null ? 0 : globalx) + width) - globalx;
416 cliph = min(max(clipy, parent == null ? 0 : globaly) + cliph,
417 (parent == null ? 0 : globaly) + height) - globaly;
418 clipx = max(clipx, parent == null ? 0 : globalx);
419 clipy = max(clipy, parent == null ? 0 : globaly);
420 if (clipw <= 0 || cliph <= 0) return;
422 if ((fillcolor & 0xFF000000) != 0x00000000 || parent == null)
423 buf.fillRect(clipx, clipy, clipx + clipw, clipy + cliph,
424 (fillcolor & 0xFF000000) != 0 ? fillcolor : 0xFF777777);
427 if ((flags & TILE_FLAG) != 0) renderTiledImage(globalx, globaly, clipx, clipy, clipw, cliph, buf);
428 else renderStretchedImage(globalx, globaly, clipx, clipy, clipw, cliph, buf);
430 if (text != null && !text.equals(""))
431 renderText(x, y, clipx, clipy, clipw, cliph, buf);
433 // now subtract the pad region from the clip region before proceeding
434 clipw = min(max(clipx, globalx + hpad) + clipw, globalx + width - hpad) - clipx;
435 cliph = min(max(clipy, globaly + vpad) + cliph, globaly + height - vpad) - clipy;
436 clipx = max(clipx, globalx + hpad);
437 clipy = max(clipy, globaly + vpad);
439 for(Box b = getChild(0); b != null; b = b.nextSibling())
440 b.render(globalx, globaly, clipx, clipy, clipw, cliph, buf);
443 void renderStretchedImage(int globalx, int globaly, int clipx, int clipy, int clipw, int cliph, DoubleBuffer buf) {
444 //buf.setClip(x, y, w + x, h + y);
445 System.out.println("draw " + clipx + " " + clipy + " " + (clipx + clipw) + " " + (clipy + cliph));
446 buf.drawPicture(image,
447 clipx, clipy, clipx + clipw, clipy + cliph,
448 0, 0, image.getWidth(), image.getHeight());
449 //buf.setClip(0, 0, buf.getWidth(), buf.getHeight());
452 void renderTiledImage(int globalx, int globaly, int x, int y, int w, int h, DoubleBuffer buf) {
453 int iw = image.getWidth();
454 int ih = image.getHeight();
455 for(int i=(x - x)/iw; i <= (x + w - x)/iw; i++) {
456 for(int j=(y - y)/ih; j<= (y + h - y)/ih; j++) {
458 int dx1 = max(i * iw + x, x);
459 int dy1 = max(j * ih + y, y);
460 int dx2 = min((i+1) * iw + x, x + w);
461 int dy2 = min((j+1) * ih + y, y + h);
463 int sx1 = dx1 - (i*iw) - x;
464 int sy1 = dy1 - (j*ih) - y;
465 int sx2 = dx2 - (i*iw) - x;
466 int sy2 = dy2 - (j*ih) - y;
468 if (dx2 - dx1 > 0 && dy2 - dy1 > 0 && sx2 - sx1 > 0 && sy2 - sy1 > 0)
469 buf.drawPicture(image, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2);
474 void renderText(int x, int y, int clipx, int clipy, int clipw, int cliph, DoubleBuffer buf) {
476 // hack because (believe it or not) libgcj doesn't support UTF16.
477 byte[] b = new byte[text.length() * 2 + 2];
478 for(int i=0; i<text.length(); i++) {
479 b[i * 2] = (byte)((((short)text.charAt(i)) & 0xff00) >> 8);
480 b[i * 2 + 1] = (byte)(((short)text.charAt(i)) & 0xff);
482 b[text.length()] = 0;
483 b[text.length() + 1] = 0;
487 ImageDecoder id = org.xwt.translators.Font.render(new FileInputStream("COMIC.TTF"), 24, text, false);
488 Picture p = Platform.createPicture(id);
489 // FIXME: clipping (don't use setClip)
492 x + hpad + p.getWidth(), y + vpad + p.getHeight(),
494 p.getWidth(), p.getHeight());
495 } catch (Exception e) {
502 // Methods to implement org.xwt.js.JS //////////////////////////////////////
504 public Object callMethod(Object method, JS.Array args, boolean checkOnly) throws JS.Exn {
505 if ("indexof".equals(method)) {
506 if (checkOnly) return Boolean.TRUE;
507 if (args.length() != 1 || args.elementAt(0) == null || !(args.elementAt(0) instanceof Box)) return new Integer(-1);
508 Box b = (Box)args.elementAt(0);
509 if (b.parent != Box.this) {
510 if (redirect == null || redirect == Box.this) return new Integer(-1);
511 return redirect.callMethod(method, args, checkOnly);
513 return new Integer(b.getIndexInParent());
515 } else if ("apply".equals(method)) {
516 if (checkOnly) return Boolean.TRUE;
517 if (args.elementAt(0) instanceof Res) {
518 Res res = (Res)args.elementAt(0);
519 res = res.addExtension(".xwt");
520 Template t = Template.buildTemplate(res, "fromResource");
521 if (ThreadMessage.suspendThread()) try {
522 JS.Callable callback = args.length() < 2 ? null : (Callable)args.elementAt(1);
523 t.apply(this, null, null, callback, 0, t.numUnits());
525 ThreadMessage.resumeThread();
527 } else if (args.elementAt(0) instanceof String) {
528 String templatename = (String)args.elementAt(0);
529 Template t = Template.getTemplate(templatename, null);
531 if (Log.on) Log.logJS(this, "template " + templatename + " not found");
533 if (ThreadMessage.suspendThread()) try {
534 JS.Callable callback = args.length() < 2 ? null : (Callable)args.elementAt(1);
535 t.apply(this, null, null, callback, 0, t.numUnits());
537 ThreadMessage.resumeThread();
540 } else if (args.elementAt(0) instanceof JS && !(args.elementAt(0) instanceof Box)) {
541 JS s = (JS)args.elementAt(0);
542 Object[] keys = s.keys();
543 for(int j=0; j<keys.length; j++) put(keys[j].toString(), s.get(keys[j]));
550 /** Returns the i_th child */
551 public Object get(int i) {
552 if (redirect == null) return null;
553 if (redirect != this) return redirect.get(i);
554 return i >= numChildren() || i < 0 ? null : getChild(i);
558 * Inserts value as child i; calls remove() if necessary.
559 * This method handles "reinserting" one of your children properly.
560 * INVARIANT: after completion, getChild(min(i, numChildren())) == newnode
561 * WARNING: O(n) runtime, unless i == numChildren()
563 public void put(int i, Object value) {
566 if (value != null && !(value instanceof Box)) {
567 if (Log.on) Log.logJS(this, "attempt to set a numerical property on a box to anything other than a box");
568 } else if (redirect == null) {
569 if (Log.on) Log.logJS(this, "attempt to add/remove children to/from a node with a null redirect");
570 } else if (redirect != this) {
571 Box b = value == null ? (Box)redirect.get(i) : (Box)value;
572 redirect.put(i, value);
574 } else if (value == null) {
575 if (i >= 0 && i < numChildren()) {
580 } else if (value instanceof RootProxy) {
581 if (Log.on) Log.logJS(this, "attempt to reparent a box via its proxy object");
583 Box newnode = (Box)value;
585 // check if box being moved is currently target of a redirect
586 for(Box cur = newnode.parent; cur != null; cur = cur.parent)
587 if (cur.redirect == newnode) {
588 if (Log.on) Log.logJS(this, "attempt to move a box that is the target of a redirect");
592 // check for recursive ancestor violation
593 for(Box cur = this; cur != null; cur = cur.parent)
594 if (cur == newnode) {
595 if (Log.on) Log.logJS(this, "attempt to make a node a parent of its own ancestor");
596 if (Log.on) Log.log(this, "box == " + this + " ancestor == " + newnode);
600 if (numKids > 15 && children == null) convert_to_array();
602 newnode.parent = this;
604 if (children == null) {
605 if (firstKid == null) {
607 newnode.prevSibling = newnode;
608 newnode.nextSibling = newnode;
609 } else if (i >= numKids) {
610 newnode.prevSibling = firstKid.prevSibling;
611 newnode.nextSibling = firstKid;
612 firstKid.prevSibling.nextSibling = newnode;
613 firstKid.prevSibling = newnode;
616 for(int j=0; j<i; j++) cur = cur.nextSibling;
617 newnode.prevSibling = cur.prevSibling;
618 newnode.nextSibling = cur;
619 cur.prevSibling.nextSibling = newnode;
620 cur.prevSibling = newnode;
621 if (i == 0) firstKid = newnode;
626 if (i >= children.size()) {
627 newnode.indexInParent = children.size();
628 children.addElement(newnode);
630 children.insertElementAt(newnode, i);
631 for(int j=i; j<children.size(); j++)
632 getChild(j).indexInParent = j;
636 // need both of these in case child was already uncalc'ed
639 MARK_FOR_REFLOW_this;
643 // note that JavaScript box[0] will invoke put(int i), not put(String s)
648 public Object get_(Object name) { return super.get(name); }
649 public Object get(Object name) { return get(name, false); }
650 public Object get(Object name_, boolean ignoretraps) {
651 if (name_ instanceof Number) return get(((Number)name_).intValue());
653 if (!(name_ instanceof String)) return null;
654 String name = (String)name_;
655 if (name.equals("")) return null;
657 // See if we're reading back the function value of a trap
658 if (name.charAt(0) == '_') {
659 if (name.charAt(1) == '_') name = name.substring(2);
660 else name = name.substring(1);
661 Trap t = Trap.getTrap(this, name);
662 return t == null ? null : t.f;
665 // See if we're triggering a trap
666 Trap t = traps == null || ignoretraps ? null : (Trap)traps.get(name);
667 if (t != null && t.isreadtrap) return t.perform(Trap.emptyargs);
669 // Check for a special handler
670 SpecialBoxProperty gph = (SpecialBoxProperty)SpecialBoxProperty.specialBoxProperties.get(name);
671 if (gph != null) return gph.get(this);
673 Object ret = super.get(name);
674 if (name.startsWith("$") && ret == null)
675 if (Log.on) Log.logJS(this, "WARNING: attempt to access " + name + ", but no child with id=\"" + name.substring(1) + "\" found");
679 public Object[] keys() {
680 Object[] ret = new Object[numChildren()];
681 for(int i=0; i<ret.length; i++) ret[i] = new Integer(i);
687 * @param ignoretraps if set, no traps will be triggered (set when 'cascade' reaches the bottom of the trap stack)
688 * @param rp if this put is being performed via a root proxy, rp is the root proxy.
690 public void put_(Object name, Object value) { super.put(name, value); }
691 public void put(Object name, Object value) { put(name, value, false, null); }
692 public void put(Object name, Object value, boolean ignoretraps) { put(name, value, ignoretraps, null); }
693 public void put(Object name_, Object value, boolean ignoretraps, RootProxy rp) {
694 if (name_ instanceof Number) { put(((Number)name_).intValue(), value); return; }
695 if (!(name_ instanceof String)) { super.put(name_,value); return; }
696 String name = name_.toString();
697 if (!ignoretraps && traps != null) {
698 Trap t = (Trap)traps.get(name);
700 JS.Array arg = new JS.Array();
701 arg.addElement(value);
703 arg.setElementAt(null, 0);
708 // don't want to really cascade down to the box on this one
709 if (name.equals("0")) return;
711 SpecialBoxProperty gph = (SpecialBoxProperty)SpecialBoxProperty.specialBoxProperties.get(name);
712 if (gph != null) { gph.put(name, this, value); return; }
714 if (name.charAt(0) == '_') {
715 if (value != null && !(value instanceof JS.Callable)) {
716 if (Log.on) Log.logJS(this, "attempt to put a non function value (" + value + ") to " + name);
717 } else if (value != null && !(value instanceof JS.CompiledFunction)) {
718 if (Log.on) Log.logJS(this, "attempt to put a non-compiled function value (" + value + ") to " + name);
719 } else if (name.charAt(1) == '_') {
720 name = name.substring(2).intern();
721 Trap t = Trap.getTrap(this, name);
722 if (t != null) t.delete();
723 if (value != null) Trap.addTrap(this, name, ((JS.CompiledFunction)value), true, rp);
725 name = name.substring(1).intern();
726 Trap t = Trap.getTrap(this, name);
727 if (t != null) t.delete();
728 if (value != null) Trap.addTrap(this, name, ((JS.CompiledFunction)value), false, rp);
733 super.put(name, value);
737 // Tree Manipulation /////////////////////////////////////////////////////////////////////
739 /** The parent of this node */
740 private Box parent = null;
742 // Variables used in Vector mode */
743 /** INVARIANT: if (parent != null) parent.children.elementAt(indexInParent) == this */
744 private int indexInParent;
745 private Vec children = null;
747 // Variables used in linked-list mode
748 private int numKids = 0;
749 private Box nextSibling = null;
750 private Box prevSibling = null;
751 private Box firstKid = null;
753 // when we get more than 15 children, we switch to array-mode
754 private void convert_to_array() {
755 children = new Vec(numKids);
758 children.addElement(cur);
759 cur.indexInParent = children.size() - 1;
760 cur = cur.nextSibling;
761 } while (cur != firstKid);
764 /** remove this node from its parent; INVARIANT: whenever the parent of a node is changed, remove() gets called. */
765 public void remove() {
766 if (parent == null) {
767 if (surface != null) surface.dispose(true);
770 Box oldparent = parent;
771 if (oldparent == null) return;
772 MARK_FOR_REFLOW_this;
774 flags &= ~MOUSEINSIDE_FLAG;
776 if (parent.children != null) {
777 parent.children.removeElementAt(indexInParent);
778 for(int j=indexInParent; j<parent.children.size(); j++)
779 (parent.getChild(j)).indexInParent = j;
782 if (parent.firstKid == this) {
783 if (nextSibling == this) parent.firstKid = null;
784 else parent.firstKid = nextSibling;
787 prevSibling.nextSibling = nextSibling;
788 nextSibling.prevSibling = prevSibling;
794 if (oldparent != null) { Box b = oldparent; MARK_FOR_REFLOW_b; }
796 // note that JavaScript box[0] will invoke put(int i), not put(String s)
797 if (oldparent != null) oldparent.put("0", this);
800 /** returns our next sibling (parent[ourindex + 1]) */
801 public final Box nextSibling() {
802 if (parent == null) return null;
803 if (parent.children == null) {
804 if (nextSibling == parent.firstKid) return null;
807 if (indexInParent >= parent.children.size() - 1) return null;
808 return (Box)parent.children.elementAt(indexInParent + 1);
812 /** returns our next sibling (parent[ourindex + 1]) */
813 public final Box prevSibling() {
814 if (parent == null) return null;
815 if (parent.children == null) {
816 if (this == parent.firstKid) return null;
819 if (indexInParent == 0) return null;
820 return (Box)parent.children.elementAt(indexInParent - 1);
824 /** Returns the parent of this node */
825 public Box getParent() { return parent; }
827 /** Returns ith child */
828 public Box getChild(int i) {
829 if (children == null) {
830 if (firstKid == null) return null;
831 if (i >= numKids) return null;
832 if (i == numKids - 1) return firstKid.prevSibling;
834 for(int j=0; j<i; j++) cur = cur.nextSibling;
837 if (i >= children.size() || i < 0) return null;
838 return (Box)children.elementAt(i);
842 /** Returns the number of children */
843 public int numChildren() {
844 if (children == null) {
845 if (firstKid == null) return 0;
847 for(Box cur = firstKid.nextSibling; cur != firstKid; i++) cur = cur.nextSibling;
850 return children.size();
854 /** Returns our index in our parent */
855 public int getIndexInParent() {
856 if (parent == null) return 0;
857 if (parent.children == null) {
859 for(Box cur = this; cur != parent.firstKid; i++) cur = cur.prevSibling;
862 return indexInParent;
866 /** returns the root of the surface that this box belongs to */
867 public final Box getRoot() {
868 if (parent == null && surface != null) return this;
869 if (parent == null) return null;
870 return parent.getRoot();
874 // Root Proxy ///////////////////////////////////////////////////////////////////////////////
876 // FEATURE: use xwt.graft() here
877 RootProxy myproxy = null;
878 public JS getRootProxy() {
879 if (myproxy == null) myproxy = new RootProxy(this);
883 private static class RootProxy extends JS {
885 RootProxy(Box b) { this.box = b; }
886 public Object get(Object name) { return box.get(name); }
887 public void put(Object name, Object value) { box.put(name, value, false, this); }
888 public Object[] keys() { return box.keys(); }
889 public Object callMethod(Object method, JS.Array args, boolean justChecking) {
890 return ((Box)box).callMethod(method,args,justChecking);
895 // Trivial Helper Methods (should be inlined) /////////////////////////////////////////
897 static final int min(int a, int b) { if (a<b) return a; else return b; }
898 static final double min(double a, double b) { if (a<b) return a; else return b; }
899 static final int max(int a, int b) { if (a>b) return a; else return b; }
900 static final int min(int a, int b, int c) { if (a<=b && a<=c) return a; else if (b<=c && b<=a) return b; else return c; }
901 static final int max(int a, int b, int c) { if (a>=b && a>=c) return a; else if (b>=c && b>=a) return b; else return c; }
902 static final int bound(int a, int b, int c) { if (c < b) return c; if (a > b) return a; return b; }
903 final boolean inside(int x, int y) { return (!((flags & INVISIBLE_FLAG) != 0) && x >= 0 && y >= 0 && x < width && y < height); }
905 /** figures out what box in this subtree of the Box owns the pixel at x,y relitave to the Surface */
906 public static Box whoIs(Box cur, int x, int y) {
908 if (cur.parent != null) throw new Error("whoIs may only be invoked on the root box of a surface");
912 // WARNING: this method is called from the event-queueing
913 // thread -- it may run concurrently with ANY part of XWT, and
914 // is UNSYNCHRONIZED for performance reasons. BE CAREFUL
917 if ((cur.flags & INVISIBLE_FLAG) != 0) return null;
918 if (!cur.inside(x - globalx, y - globaly)) return cur.parent == null ? cur : null;
920 for(int i=cur.numChildren() - 1; i>=0; i--) {
921 Box child = cur.getChild(i);
922 if (child == null) continue; // since this method is unsynchronized, we have to double-check
925 if (!((child.flags & INVISIBLE_FLAG) != 0) && child.inside(x - globalx, y - globaly)) { cur = child; continue OUTER; }
935 * A helper class for properties of Box which require special
938 * To avoid excessive use of String.equals(), the Box.get() and
939 * Box.put() methods employ a Hash keyed on property names that
940 * require special handling. The value stored in the Hash is an
941 * instance of an anonymous subclass of SpecialBoxProperty, which knows
942 * how to handle get()s and put()s for that property name. There
943 * should be one anonymous subclass of SpecialBoxProperty for each
944 * specially-handled property on Box.
946 static class SpecialBoxProperty {
948 SpecialBoxProperty() { }
950 /** stores instances of SpecialBoxProperty; keyed on property name */
951 static Hash specialBoxProperties = new Hash(200, 3);
953 /** this method defines the behavior when the property is get()ed from b */
954 Object get(Box b) { return null; }
956 /** this method defines the behavior when the property is put() to b */
957 void put(Box b, Object value) { }
959 /** this method defines the behavior when the property is put() to b, allows a single SpecialBoxProperty to serve multiple properties */
960 void put(String name, Box b, Object value) { put(b, value); }
963 //#repeat fillcolor/strokecolor
964 specialBoxProperties.put("fillcolor", new SpecialBoxProperty() {
965 public Object get(Box b) {
966 if ((b.fillcolor & 0xFF000000) == 0) return null;
967 String red = Integer.toHexString((b.fillcolor & 0x00FF0000) >> 16);
968 String green = Integer.toHexString((b.fillcolor & 0x0000FF00) >> 8);
969 String blue = Integer.toHexString(b.fillcolor & 0x000000FF);
970 if (red.length() < 2) red = "0" + red;
971 if (blue.length() < 2) blue = "0" + blue;
972 if (green.length() < 2) green = "0" + green;
973 return "#" + red + green + blue;
975 public void put(Box b, Object value) {
976 int newcolor = b.fillcolor;
977 String s = value == null ? null : value.toString();
978 if (value == null) newcolor = 0x00000000;
979 else if (s.length() > 0 && s.charAt(0) == '#')
981 newcolor = 0xFF000000 |
982 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
983 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
984 Integer.parseInt(s.substring(5, 7), 16);
985 } catch (NumberFormatException e) {
986 Log.log(this, "invalid color " + s);
989 else if (SVG.colors.get(s) != null)
990 newcolor = 0xFF000000 | ((Integer)SVG.colors.get(s)).intValue();
991 if (newcolor == b.fillcolor) return;
992 b.fillcolor = newcolor;
998 specialBoxProperties.put("color", new SpecialBoxProperty() {
999 public Object get(Box b) { return b.get("fillcolor"); }
1000 public void put(Box b, Object value) { b.put("fillcolor", value); }
1003 specialBoxProperties.put("textcolor", new SpecialBoxProperty() {
1004 public Object get(Box b) { return b.get("strokecolor"); }
1005 public void put(Box b, Object value) { b.put("strokecolor", value); }
1008 specialBoxProperties.put("text", new SpecialBoxProperty() {
1009 public Object get(Box b) { return b.text; }
1010 public void put(Box b, Object value) {
1011 String t = value == null ? "null" : value.toString();
1012 if (t.equals(b.text)) return;
1015 if (b.textwidth != 0 || b.textheight != 0) MARK_FOR_REFLOW_b;
1016 b.textwidth = b.textheight = 0;
1019 ImageDecoder id = org.xwt.translators.Font.render(new FileInputStream("COMIC.TTF"), 24, b.text, true);
1020 if (id.getWidth() != b.textwidth || id.getHeight() != b.textheight) MARK_FOR_REFLOW_b;
1021 b.textwidth = id.getWidth();
1022 b.textheight = id.getHeight();
1023 } catch (Exception e) {
1030 specialBoxProperties.put("font", new SpecialBoxProperty() {
1031 public Object get(Box b) { return b.font; }
1032 public void put(Box b, Object value) {
1033 b.font = value == null ? null : value.toString();
1034 // FIXME: translate value into a resource
1036 b.flags |= FONT_CHANGED_FLAG;
1040 specialBoxProperties.put("thisbox", new SpecialBoxProperty() {
1041 public Object get(Box b) { return b; }
1042 public void put(Box b, Object value) {
1043 if (value == null) b.remove();
1044 else if (value.equals("window") || value.equals("frame")) Platform.createSurface(b, value.equals("frame"), true);
1045 else if (Log.on) Log.log(this, "put invalid value to 'thisbox' property: " + value);
1049 specialBoxProperties.put("orient", new SpecialBoxProperty() {
1050 public Object get(Box b) {
1051 Log.log(this, "warning: the orient property is deprecated");
1052 if (b.redirect == null) return "horizontal";
1053 else if (b.redirect != b) return get(b.redirect);
1054 else if (b.cols == 1) return "vertical";
1055 else if (b.rows == 1) return "horizontal";
1058 public void put(Box b, Object value) {
1059 Log.log(this, "warning: the orient property is deprecated");
1060 if (value == null) return;
1061 if (b.redirect == null) return;
1062 if (b.redirect != b) { put(b.redirect, value); return; }
1063 if (value.equals("vertical")) {
1064 if (b.rows == 0) return;
1065 b.rows = 0; b.cols = 1;
1066 } else if (value.equals("horizontal")) {
1067 if (b.cols == 0) return;
1068 b.cols = 0; b.rows = 1;
1070 Log.log(this, "invalid value put to orient property: " + value);
1074 specialBoxProperties.put("static", new SpecialBoxProperty() {
1075 public Object get(Box b) {
1077 JS.Thread.fromJavaThread(java.lang.Thread.currentThread()).getCurrentCompiledFunction().getSourceName();
1078 for(int i=0; i<cfsn.length() - 1; i++)
1079 if (cfsn.charAt(i) == '.' && (cfsn.charAt(i+1) == '_' || Character.isDigit(cfsn.charAt(i+1)))) {
1080 cfsn = cfsn.substring(0, i);
1083 return Static.getStatic(cfsn);
1087 specialBoxProperties.put("shrink", new SpecialBoxProperty() {
1088 public Object get(Box b) { return (((b.flags & HSHRINK_FLAG) != 0) || ((b.flags & VSHRINK_FLAG) != 0)) ? Boolean.TRUE : Boolean.FALSE; }
1089 public void put(Box b, Object value) { b.put("hshrink", value); b.put("vshrink", value); }
1092 //#repeat hshrink/vshrink HSHRINK_FLAG/VSHRINK_FLAG
1093 specialBoxProperties.put("hshrink", new SpecialBoxProperty() {
1094 public Object get(Box b) { return new Boolean((b.flags & HSHRINK_FLAG) != 0); }
1095 public void put(Box b, Object value) {
1096 boolean newshrink = stob(value);
1097 if (((b.flags & HSHRINK_FLAG) != 0) == newshrink) return;
1098 if (newshrink) b.flags |= HSHRINK_FLAG; else b.flags &= ~HSHRINK_FLAG;
1105 specialBoxProperties.put("x", new SpecialBoxProperty() {
1106 public Object get(Box b) {
1107 if (b.surface == null) return new Integer(0);
1108 if ((b.flags & INVISIBLE_FLAG) != 0) return new Integer(0);
1109 return new Integer(b.x);
1111 public void put(Box b, Object value) {
1112 if (!((b.flags & ABSOLUTE_FLAG) != 0)) return;
1113 int x = stoi(value);
1114 if (x == b.x) return;
1117 if (b.parent == null && b.surface != null) {
1118 b.surface.setLocation();
1119 b.surface.centerSurfaceOnRender = false;
1127 //#repeat width/height minwidth/minheight maxwidth/maxheight
1128 specialBoxProperties.put("width", new SpecialBoxProperty() {
1129 public Object get(Box b) { return new Integer(b.width); }
1130 public void put(Box b, Object value) {
1131 b.width = stoi(value);
1132 if (b.parent == null && b.surface != null) {
1133 b.surface.setSize();
1136 if (b.minwidth == b.width && b.maxwidth == b.width) return;
1137 b.minwidth = b.maxwidth = b.width;
1143 //#repeat cols/rows rows/cols
1144 specialBoxProperties.put("cols", new SpecialBoxProperty() {
1145 public Object get(Box b) { return new Double(b.cols); }
1146 public void put(Box b, Object value) {
1147 if (b.cols == stoi(value)) return;
1148 b.cols = stoi(value);
1149 if (b.cols == 0 && b.rows == 0) b.rows = 1;
1150 if (b.cols != 0 && b.rows != 0) b.rows = 0;
1155 //#repeat colspan/rowspan
1156 specialBoxProperties.put("colspan", new SpecialBoxProperty() {
1157 public Object get(Box b) { return new Double(b.colspan); }
1158 public void put(Box b, Object value) {
1159 if (b.colspan == stoi(value)) return;
1160 b.colspan = stoi(value);
1166 specialBoxProperties.put("tile", new SpecialBoxProperty() {
1167 public Object get(Box b) { return ((b.flags & TILE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1168 public void put(Box b, Object value) {
1169 if (((b.flags & TILE_FLAG) != 0) == stob(value)) return;
1170 if (stob(value)) b.flags |= TILE_FLAG; else b.flags &= ~TILE_FLAG;
1174 specialBoxProperties.put("invisible", new SpecialBoxProperty() {
1175 public Object get(Box b) {
1176 for (Box cur = b; cur != null; cur = cur.parent) {
1177 if ((cur.flags & INVISIBLE_FLAG) != 0) return Boolean.TRUE; }
1178 return Boolean.FALSE;
1180 public void put(Box b, Object value) {
1181 if (stob(value) == ((b.flags & INVISIBLE_FLAG) != 0)) return;
1182 if (stob(value)) b.flags |= INVISIBLE_FLAG; else b.flags &= ~INVISIBLE_FLAG;
1183 if (b.parent == null) {
1184 if (b.surface != null) b.surface.setInvisible((b.flags & INVISIBLE_FLAG) != 0);
1187 MARK_FOR_REFLOW_b_parent;
1188 b.parent.dirty(b.x, b.y, b.width, b.height);
1192 specialBoxProperties.put("absolute", new SpecialBoxProperty() {
1193 public Object get(Box b) { return ((b.flags & ABSOLUTE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1194 public void put(Box b, Object value) {
1195 if (stob(value) == ((b.flags & ABSOLUTE_FLAG) != 0)) return;
1196 if (stob(value)) b.flags |= ABSOLUTE_FLAG; else b.flags &= ~ABSOLUTE_FLAG;
1197 if ((b.flags & ABSOLUTE_FLAG) != 0) { b.x = 0; b.y = 0; }
1198 if (b.parent != null) MARK_FOR_REFLOW_b_parent;
1201 specialBoxProperties.put("image", new SpecialBoxProperty() {
1202 public Object get(Box b) { return b.image == null ? null : ImageDecoder.imageToNameMap.get(b.image); }
1203 public void put(Box b, Object value) {
1204 if ((value == null && b.image == null) ||
1205 (value != null && b.image != null && value.equals(ImageDecoder.imageToNameMap.get(b.image)))) return;
1206 String s = value == null ? null : value.toString();
1207 if (s == null || s.equals("")) b.image = null;
1209 if ((b.image = ImageDecoder.getPicture(s)) == null) {
1210 if (Log.on) Log.logJS(Box.class, "unable to load image " + s);
1212 b.minwidth = b.image.getWidth();
1213 b.minheight = b.image.getHeight();
1221 //#repeat globalx/globaly x/y
1222 specialBoxProperties.put("globalx", new SpecialBoxProperty() {
1223 public Object get(Box b) { return new Integer(b.parent == null || b.surface == null ? 0 : b.x); }
1224 public void put(Box b, Object value) {
1225 if (b.surface == null || b.parent == null) return;
1226 b.put("x", new Integer(stoi(value) - stoi(get(b.parent))));
1232 specialBoxProperties.put("cursor", new SpecialBoxProperty() {
1233 public Object get(Box b) { return b.cursor; }
1234 public void put(Box b, Object value) {
1235 b.cursor = (String)value;
1236 if (b.surface == null) return;
1238 // see if we need to update the surface cursor
1239 Surface surface = b.getRoot().surface;
1240 String tempcursor = surface.cursor;
1241 b.Move(surface.mousex, surface.mousey, surface.mousex, surface.mousey);
1242 if (surface.cursor != tempcursor) surface.syncCursor();
1246 //#repeat mousex/mousey x/y
1247 specialBoxProperties.put("mousex", new SpecialBoxProperty() {
1248 public Object get(Box b) {
1249 Surface surface = b.getRoot().surface;
1250 if (surface == null) return new Integer(0);
1251 int mousex = surface.mousex;
1252 for(Box cur = b; cur != null && cur.parent != null; cur = cur.parent) mousex -= cur.x;
1253 return new Integer(mousex);
1258 specialBoxProperties.put("xwt", new SpecialBoxProperty() {
1259 public Object get(Box b) { return XWT.singleton; }
1262 specialBoxProperties.put("mouseinside", new SpecialBoxProperty() {
1263 public Object get(Box b) {
1264 return ((b.flags & MOUSEINSIDE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1267 specialBoxProperties.put("numchildren", new SpecialBoxProperty() {
1268 public Object get(Box b) {
1269 if (b.redirect == null) return new Integer(0);
1270 if (b.redirect != b) return get(b.redirect);
1271 return new Integer(b.numChildren());
1274 SpecialBoxProperty mouseEventHandler = new SpecialBoxProperty() {
1275 public void put(String name, Box b, Object value) {
1276 Surface surface = b.getRoot().surface;
1277 if (surface == null) return;
1278 int mousex = surface.mousex;
1279 int mousey = surface.mousey;
1280 for(Box c = b.parent; c != null && c.parent != null; c = c.parent) {
1284 for(Box c = b.prevSibling(); c != null; c = c.prevSibling()) {
1285 if (c.inside(mousex - c.x, mousey - c.y)) {
1290 if (b.parent != null) b.parent.put(name, value);
1293 specialBoxProperties.put("Press1", mouseEventHandler);
1294 specialBoxProperties.put("Press2", mouseEventHandler);
1295 specialBoxProperties.put("Press3", mouseEventHandler);
1296 specialBoxProperties.put("Release1", mouseEventHandler);
1297 specialBoxProperties.put("Release2", mouseEventHandler);
1298 specialBoxProperties.put("Release3", mouseEventHandler);
1299 specialBoxProperties.put("Click1", mouseEventHandler);
1300 specialBoxProperties.put("Click2", mouseEventHandler);
1301 specialBoxProperties.put("Click3", mouseEventHandler);
1302 specialBoxProperties.put("DoubleClick1", mouseEventHandler);
1303 specialBoxProperties.put("DoubleClick2", mouseEventHandler);
1304 specialBoxProperties.put("DoubleClick3", mouseEventHandler);
1306 specialBoxProperties.put("root", new SpecialBoxProperty() {
1307 public Object get(Box b) {
1308 if (b.getRoot() == null) return null;
1309 else if (b.parent == null) return b;
1310 else return b.getRoot().getRootProxy();
1313 specialBoxProperties.put("Minimized", new SpecialBoxProperty() {
1314 public Object get(Box b) {
1315 if (b.parent == null && b.surface != null) return b.surface.minimized ? Boolean.TRUE : Boolean.FALSE;
1318 public void put(Box b, Object value) {
1319 if (b.surface == null) return;
1320 boolean val = stob(value);
1321 if (b.parent == null && b.surface.minimized != val) b.surface.setMinimized(val);
1325 specialBoxProperties.put("Maximized", new SpecialBoxProperty() {
1326 public Object get(Box b) {
1327 if (b.parent == null && b.surface != null) return b.surface.maximized ? Boolean.TRUE : Boolean.FALSE;
1330 public void put(Box b, Object value) {
1331 if (b.surface == null) return;
1332 boolean val = stob(value);
1333 if (b.parent == null && b.surface.maximized != val) b.surface.setMaximized(val);
1337 specialBoxProperties.put("toback", new SpecialBoxProperty() {
1338 public void put(Box b, Object value) {
1339 if (b.parent == null && stob(value) && b.surface != null) b.surface.toBack();
1343 specialBoxProperties.put("tofront", new SpecialBoxProperty() {
1344 public void put(Box b, Object value) {
1345 if (b.parent == null && stob(value) && b.surface != null) b.surface.toFront();
1349 //#repeat hscar/vscar
1350 specialBoxProperties.put("hscar", new SpecialBoxProperty() {
1351 public void put(Box b, Object value) {
1352 if (b.parent == null && b.surface != null) {
1353 b.surface.hscar = stoi(value);
1354 b.surface.dirty(0, 0, b.width, b.height);
1355 b.surface.Refresh();
1361 specialBoxProperties.put("Close", new SpecialBoxProperty() {
1362 public void put(Box b, Object value) {
1363 if (b.parent == null && b.surface != null) b.surface.dispose(true);
1367 // these are all do-nothings; just to prevent space from getting taken up in the params Hash.
1368 specialBoxProperties.put("KeyPressed", new SpecialBoxProperty());
1369 specialBoxProperties.put("KeyReleased", new SpecialBoxProperty());
1370 specialBoxProperties.put("PosChange", new SpecialBoxProperty());
1371 specialBoxProperties.put("SizeChange", new SpecialBoxProperty());
1374 specialBoxProperties.put("hpad", new SpecialBoxProperty() {
1375 public Object get(Box b) {
1376 if (b.redirect == null) return new Integer(0);
1377 if (b.redirect != b) return get(b.redirect);
1378 return new Integer(b.hpad);
1380 public void put(Box b, Object value) {
1381 if (b.redirect == null) return;
1382 if (b.redirect != b) { put(b.redirect, value); return; }
1383 int newval = stoi(value);
1384 if (newval == b.hpad) return;
1391 //#repeat minwidth/minheight maxwidth/maxheight
1392 specialBoxProperties.put("minwidth", new SpecialBoxProperty() {
1393 public Object get(Box b) { return new Integer(b.minwidth); }
1394 public void put(Box b, Object value) {
1395 if (stoi(value) == b.minwidth) return;
1396 b.minwidth = stoi(value);
1400 specialBoxProperties.put("maxwidth", new SpecialBoxProperty() {
1401 public Object get(Box b) { return new Integer(b.maxwidth); }
1402 public void put(Box b, Object value) {
1403 if (stoi(value) == b.maxwidth) return;
1404 b.maxwidth = stoi(value);
1410 specialBoxProperties.put("redirect", new SpecialBoxProperty() {
1411 public void put(Box b, Object value) { }
1412 public Object get(Box b) {
1413 if (b.redirect == null) return null;
1414 if (b.redirect == b) return Boolean.TRUE;
1415 return get(b.redirect);
1419 // FEATURE: this still isn't totally harmonious; when you createSurface, these aren't checked
1420 specialBoxProperties.put("titlebar", new SpecialBoxProperty() {
1421 public void put(Box b, Object value) {
1422 if (b.surface != null) b.surface.setTitleBarText(value.toString());
1423 b.put_("titlebar", value);
1425 public Object get(Box b) { return b.get_("titlebar"); }
1428 specialBoxProperties.put("icon", new SpecialBoxProperty() {
1429 public void put(Box b, Object value) {
1430 b.put_("icon", value);
1431 if (b.surface == null) return;
1432 Picture pic = ImageDecoder.getPicture(value.toString());
1433 if (pic != null) b.surface.setIcon(pic);
1434 else if (Log.on) Log.log(this, "unable to load icon " + value);
1436 public Object get(Box b) { return b.get_("icon"); }
1441 /** helper that converts a String to a boolean according to JavaScript coercion rules */
1442 public static boolean stob(Object o) {
1443 if (o == null) return false;
1444 return Boolean.TRUE.equals(o) || "true".equals(o);
1447 /** helper that converts a String to an int according to JavaScript coercion rules */
1448 public static int stoi(Object o) {
1449 if (o == null) return 0;
1450 if (o instanceof Integer) return ((Integer)o).intValue();
1453 if (!(o instanceof String)) s = o.toString();
1456 try { return Integer.parseInt(s.indexOf('.') == -1 ? s : s.substring(0, s.indexOf('.'))); }
1457 catch (NumberFormatException e) { return 0; }