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 // FEATURE: reflow before allowing js to read from width/height
10 // FEATURE: fastpath for rows=1/cols=1
11 // FEATURE: reflow starting with a certain child
12 // FEATURE: separate mark_for_reflow and mark_for_resize
18 import org.xwt.util.*;
19 import org.xwt.translators.*;
23 * Encapsulates the data for a single XWT box as well as all layout
28 * This is the real meat of XWT. Part of its monolithic design is for
29 * performance reasons: deep inheritance heirarchies are slow, and
30 * neither javago nor GCJ can inline across class boundaries.
33 * <p>The rendering process consists of three phases; each requires
34 * one DFS pass over the tree</p>
36 * <ol><li> <b>repacking</b>: children of a box are packed into columns
37 * and rows according to their colspan/rowspan attributes and
38 * ordering. Minimum and maximum sizes of columns are computed.
40 * <li> <b>resizing</b>: width/height and x/y positions of children
41 * are assigned. If a PosChange or SizeChange is triggered,
42 * <tt>Surface.abort</tt> will be set and the resizing process will
45 * <li> <b>repainting</b>: children draw their content onto the
49 * The first two passes together are called the <i>reflow</i> phase.
51 * Reflowing is done in a seperate pass since PosChanges and
52 * SizeChanges trigger an Surface.abort; if rendering were done in the same
53 * pass, rendering work done prior to the Surface.abort would be wasted.
55 * The two passes are repack and resize. Together they are known as
56 * reflow. Repacking assigns boxes to the appropriate grid
57 * coordinates within the parents and computes
58 * contentwidth/contentheight. Resize computes actual size and
61 * A note on coordinates: the Box class represents regions
62 * internally as x,y,w,h tuples, even though the PixelBuffer class
63 * uses x1,y1,x2,y2 tuples.
65 public final class Box extends JS.Scope {
67 public Box() { super(null); }
70 // Misc instance data ////////////////////////////////////////////////////////////////
72 static int sizePosChangesSinceLastRender = 0;
75 // Misc instance data ////////////////////////////////////////////////////////////////
77 boolean needs_reflow = true;
78 //#define MARK_FOR_REFLOW_this for(Box b2 = this; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
79 //#define MARK_FOR_REFLOW_b for(Box b2 = b; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
80 //#define MARK_FOR_REFLOW_b_parent for(Box b2 = b.parent; b2 != null && !b2.needs_reflow; b2 = b2.parent) b2.needs_reflow = true;
83 Surface surface = null; // null on all non-root boxen
85 // Flags ///////////////////////////////////////////////////////////////////////////////
87 static int MOUSEINSIDE_FLAG = 0x00000001;
88 static int INVISIBLE_FLAG = 0x00000002;
89 static int ABSOLUTE_FLAG = 0x00000004;
90 static int HSHRINK_FLAG = 0x00000008;
91 static int VSHRINK_FLAG = 0x00000010;
92 static int TILE_FLAG = 0x00000020;
93 static int FONT_CHANGED_FLAG = 0x00000040; // set when font changes, cleared during repack
94 static int ISROOT_FLAG = 0x00000080;
95 static int NOCLIP_FLAG = 0x00000100;
98 // Geometry ////////////////////////////////////////////////////////////////////////////
100 // xwt can be compiled with 16-bit lengths to save memory on small devices
102 //#define MAX_LENGTH Integer.MAX_VALUE
103 //#define MIN_LENGTH Integer.MIN_VALUE
105 // always correct (set directly by user)
106 public LENGTH minwidth = 0;
107 public LENGTH minheight = 0;
108 public LENGTH maxwidth = MAX_LENGTH;
109 public LENGTH maxheight = MAX_LENGTH;
110 private LENGTH hpad = 0;
111 private LENGTH vpad = 0;
112 private String text = null;
113 private Res font = null;
114 private int fontsize = 10;
115 private LENGTH textwidth = 0;
116 private LENGTH textheight = 0;
118 // FEATURE: use shorts
119 private int rows = 1;
120 private int cols = 0;
121 private int rowspan = 1;
122 private int colspan = 1;
124 // computed during reflow
127 public LENGTH width = 0;
128 public LENGTH height = 0;
129 private int row = 0; // FEATURE use a short
130 private int col = 0; // FEATURE use a short
131 private LENGTH contentwidth = 0; // == max(minwidth, textwidth+pad, sum(child.contentwidth) + pad)
132 private LENGTH contentheight = 0;
135 // Rendering Properties ///////////////////////////////////////////////////////////
137 private VectorGraphics.VectorPath path = null;
138 private VectorGraphics.Affine transform = null;
139 //private VectorGraphics.Paint fill = null;
140 //private VectorGraphics.Paint stroke = null;
143 public Picture image; // will disappear
144 private int fillcolor = 0x00000000; // will become VectorGraphics.Paint
145 private int strokecolor = 0xFF000000; // will become VectorGraphics.Paint
147 private String cursor = null; // the cursor for this box
150 // Instance Methods /////////////////////////////////////////////////////////////////////
152 /** Adds the intersection of (x,y,w,h) and the node's current actual geometry to the Surface's dirty list */
153 public final void dirty() {
154 if ((flags & NOCLIP_FLAG) != 0 && parent != null) parent.dirty();
155 else dirty(0, 0, width, height);
157 public final void dirty(int x, int y, int w, int h) {
158 for(Box cur = this; cur != null; cur = cur.parent) {
159 if ((flags & NOCLIP_FLAG) == 0) {
160 w = min(x + w, cur.width) - max(x, 0);
161 h = min(y + h, cur.height) - max(y, 0);
165 if (w <= 0 || h <= 0) return;
166 if (cur.parent == null && cur.surface != null) cur.surface.dirty(x, y, w, h);
173 * Given an old and new mouse position, this will update <tt>mouseinside</tt> and check
174 * to see if this node requires any Enter, Leave, or Move notifications.
176 * @param forceleave set to true by the box's parent if the mouse is inside an older
177 * sibling, which is covering up this box.
179 void Move(int oldmousex, int oldmousey, int mousex, int mousey) { Move(oldmousex, oldmousey, mousex, mousey, false); }
180 void Move(int oldmousex, int oldmousey, int mousex, int mousey, boolean forceleave) {
182 boolean wasinside = (flags & MOUSEINSIDE_FLAG) != 0;
183 boolean isinside = !((flags & INVISIBLE_FLAG) != 0) && inside(mousex, mousey) && !forceleave;
184 if (isinside) flags |= MOUSEINSIDE_FLAG; else flags &= ~MOUSEINSIDE_FLAG;
186 if (!wasinside && !isinside) return;
188 if (!wasinside && isinside && get("Enter", Trap.class) != null) put("Enter", Boolean.TRUE);
189 else if (wasinside && !isinside && get("Leave", Trap.class) != null) put("Leave", Boolean.TRUE);
190 else if (wasinside && isinside && (mousex != oldmousex || mousey != oldmousey) && get("Move", Trap.class) != null)
191 put("Move", Boolean.TRUE);
193 if (isinside && cursor != null) getRoot().cursor = cursor;
195 // if the mouse has moved into our padding region, it is considered 'outside' all our children
196 if (!(mousex >= hpad && mousey >= vpad && mousex < width - hpad && mousey < height + vpad)) forceleave = true;
198 for(Box b = getChild(numChildren() - 1); b != null; b = b.prevSibling()) {
199 b.Move(oldmousex - b.x, oldmousey - b.y, mousex - b.x, mousey - b.y, forceleave);
200 if (b.inside(mousex - b.x, mousey - b.y)) forceleave = true;
205 // Reflow ////////////////////////////////////////////////////////////////////////////////////////
207 void reflow() { reflow(width, height); }
208 void reflow(int new_width, int new_height) {
210 if (Surface.abort) return;
211 resize(x, y, new_width, new_height);
214 /** Checks if the Box's size has changed, dirties it if necessary, and makes sure childrens' sizes are up to date */
216 if (!needs_reflow) return;
217 if (numChildren() == 0) {
218 contentwidth = max(textwidth + 2 * hpad, minwidth);
219 contentheight = max(textheight + 2 * vpad, minheight);
221 contentwidth = max(contentwidth, path.boundingBoxWidth());
222 contentheight = max(contentheight, path.boundingBoxHeight());
227 // --- Phase 0 ----------------------------------------------------------------------
229 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
230 if (((flags & FONT_CHANGED_FLAG) != 0) && child.font == null) {
231 child.flags |= FONT_CHANGED_FLAG;
232 child.needs_reflow = true;
235 if (Surface.abort) { MARK_FOR_REFLOW_this; return; }
237 flags &= ~FONT_CHANGED_FLAG;
239 // --- Phase 1 ----------------------------------------------------------------------
240 // assign children to their row/column positions (assuming constrained columns)
241 if ((rows == 0 && cols == 0) || (rows != 0 && cols != 0)) throw new Error("rows == " + rows + " cols == " + cols);
242 //#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
244 int[] numRowsInCol = new int[cols]; // the number of cells occupied in each column
245 Box child = getChild(0);
246 for(; child != null && (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)); child = child.nextSibling());
247 OUTER: for(int row=0; child != null; row++) {
248 for(int col=0; child != null && col < cols;) {
249 INNER: while(true) { // scan across the row, looking for an unoccupied gap at least as wide as the child
250 while(col < cols && numRowsInCol[col] > row) col++;
251 for(int i=col; i < cols && i < col + min(cols, child.colspan); i++)
252 if (numRowsInCol[col] > row) { col = i + 1; continue INNER; }
255 if (col + min(cols, child.colspan) > cols) break;
256 for(int i=col; i < col + min(cols, child.colspan); i++) numRowsInCol[i] += child.rowspan;
259 col += min(cols, child.colspan);
260 child = child.nextSibling();
261 for(; child != null && (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)); child = child.nextSibling());
267 // --- Phase 2 ----------------------------------------------------------------------
268 // compute the min/max sizes of the columns and rows and set our contentwidth
269 //#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
270 contentwidth = 2 * hpad;
273 for(Box child = getChild(0); child != null; child = child.nextSibling())
274 numCols = max(numCols, child.col + child.colspan);
275 LENGTH[] colWidth = new LENGTH[numCols];
276 for(Box child = getChild(0); child != null; child = child.nextSibling())
277 if (!(((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)))
278 colWidth[child.col] = max(colWidth[child.col], child.contentwidth / child.colspan);
279 for(int col=0; col<numCols; col++) contentwidth += colWidth[col];
280 contentwidth = max(textwidth + 2 * hpad, contentwidth);
281 contentwidth = bound(minwidth, contentwidth, maxwidth);
283 contentwidth = max(contentwidth, path.boundingBoxWidth());
284 contentheight = max(contentheight, path.boundingBoxHeight());
290 private void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
292 // --- Phase 1 ----------------------------------------------------------------------
293 // run PosChange/SizeChange, dirty as needed
294 if (x != this.x || y != this.y || width != this.width || height != this.height) {
295 (parent == null ? this : parent).dirty(this.x, this.y, this.width, this.height);
296 boolean sizechange = false, poschange = false;
297 if ((this.width != width || this.height != height) && get("SizeChange", Trap.class) != null) sizechange = true;
298 if ((this.x != x || this.y != y) && get("PosChange", Trap.class) != null) poschange = true;
299 this.width = width; this.height = height; this.x = x; this.y = y;
301 if (sizechange || poschange)
302 if (sizePosChangesSinceLastRender == 500) {
303 if (Log.on) Log.logJS(this, "Warning, more than 500 SizeChange/PosChange traps triggered since last complete render");
305 sizePosChangesSinceLastRender++;
306 try { if (sizechange) put("SizeChange", Boolean.TRUE); } catch (Exception e) { Log.log(this, e); }
307 try { if (poschange) put("PosChange", Boolean.TRUE); } catch (Exception e) { Log.log(this, e); }
308 Surface.abort = true;
314 // --- short circuit ----------------------------------------------------------------
315 if (!needs_reflow) return;
316 needs_reflow = false;
317 if (numChildren() == 0) return;
319 // --- Phase 2 ----------------------------------------------------------------------
320 // compute the min/max sizes of the columns and rows and set initial width/height to minimums
322 //#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
325 for(Box child = getChild(0); child != null; child = child.nextSibling())
326 numCols = max(numCols, child.col + child.colspan);
327 LENGTH[] colWidth = new LENGTH[numCols];
328 LENGTH[] colMaxWidth = new LENGTH[numCols];
329 int marginWidth = width;
330 for(int i=0; i<colMaxWidth.length; i++) colMaxWidth[i] = -1;
333 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
334 if (((child.flags & ABSOLUTE_FLAG) != 0) || ((child.flags & INVISIBLE_FLAG) != 0)) continue;
335 //#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
336 colWidth[child.col] = max(colWidth[child.col], child.contentwidth / child.colspan);
337 for(int i=child.col; i<child.col+child.colspan && i<numCols; i++)
338 colMaxWidth[i] = max(colMaxWidth[i], (((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : child.maxwidth) / child.colspan);
342 //#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
343 for(int i=0; i<colMaxWidth.length; i++) if (colMaxWidth[i] == -1) colMaxWidth[i] = MAX_LENGTH;
345 for(int i=0; i<colMaxWidth.length; i++) {
346 if (colMaxWidth[i] == MAX_LENGTH) { marginWidth = 0; break; }
347 marginWidth -= colMaxWidth[i];
348 if (marginWidth < 0) { marginWidth = 0; break; }
353 // --- Phase 3 ----------------------------------------------------------------------
354 // hand out the slack
356 //#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
357 slack = width - 2 * hpad;
358 for(int i=0; i<numCols; i++) slack -= colWidth[i];
359 if (numChildren() > 0)
361 // FEATURE: inefficient
362 int startslack = slack;
363 int increment = max(1, slack / numCols);
364 for(int col=0; col < numCols && slack > 0; col++) {
365 slack += colWidth[col];
366 colWidth[col] = min(colMaxWidth[col], colWidth[col] + increment);
367 slack -= colWidth[col];
369 if (slack == startslack) break;
374 // --- Phase 4 ----------------------------------------------------------------------
375 // assign children's new sizes and positions and recurse
376 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
377 if ((child.flags & INVISIBLE_FLAG) != 0) continue;
378 int child_x = 0, child_y = 0, child_width = 0, child_height = 0;
379 if ((child.flags & ABSOLUTE_FLAG) != 0) {
382 child_width = ((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : min(child.maxwidth, width - child.x - hpad);
383 child_height = ((child.flags & VSHRINK_FLAG) != 0) ? child.contentheight : min(child.maxheight, height - child.y - vpad);
386 //#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
387 child_width = 0; for(int i=child.col; i<child.col+child.colspan && i<colWidth.length; i++) child_width += colWidth[i];
388 diff = bound(child.contentwidth, child_width, ((child.flags & HSHRINK_FLAG) != 0) ? child.contentwidth : child.maxwidth) - child_width;
389 child_x = max(hpad, marginWidth / 2); for(int i=0; i<child.col; i++) child_x += colWidth[i];
390 if (diff < 0) child_x += -1 * (diff / 2);
394 child.resize(child_x, child_y, child_width, child_height);
401 // Rendering Pipeline /////////////////////////////////////////////////////////////////////
403 /** Renders self and children within the specified region. All rendering operations are clipped to xIn,yIn,wIn,hIn */
404 void render(int parentx, int parenty, int clipx, int clipy, int clipw, int cliph, PixelBuffer buf, VectorGraphics.Affine a) {
405 if (Surface.abort || (flags & INVISIBLE_FLAG) != 0) return;
406 int globalx = parentx + (parent == null ? 0 : x);
407 int globaly = parenty + (parent == null ? 0 : y);
409 // intersect the x,y,w,h rendering window with ourselves; quit if it's empty
410 if ((flags & NOCLIP_FLAG) == 0) {
411 clipw = min(max(clipx, parent == null ? 0 : globalx) + clipw, (parent == null ? 0 : globalx) + width) - globalx;
412 cliph = min(max(clipy, parent == null ? 0 : globaly) + cliph, (parent == null ? 0 : globaly) + height) - globaly;
413 clipx = max(clipx, parent == null ? 0 : globalx);
414 clipy = max(clipy, parent == null ? 0 : globaly);
416 if (clipw <= 0 || cliph <= 0) return;
418 if ((fillcolor & 0xFF000000) != 0x00000000)
419 buf.fillTrapezoid(clipx, clipx + clipw, clipy, clipx, clipx + clipw, clipy + cliph, fillcolor);
422 if ((flags & TILE_FLAG) != 0) renderTiledImage(globalx, globaly, clipx, clipy, clipw, cliph, buf);
423 else renderStretchedImage(globalx, globaly, clipx, clipy, clipw, cliph, buf);
425 if (text != null && !text.equals(""))
426 renderText(globalx, globaly, clipx, clipy, clipw, cliph, buf);
429 VectorGraphics.RasterPath rp = path.realize(a);
430 if ((strokecolor & 0xff000000) != 0) rp.stroke(buf, 1, strokecolor);
431 if ((fillcolor & 0xff000000) != 0) rp.fill(buf, new VectorGraphics.SingleColorPaint(fillcolor));
434 // now subtract the pad region from the clip region before proceeding
435 if ((flags & NOCLIP_FLAG) == 0) {
436 clipw = min(max(clipx, globalx + hpad) + clipw, globalx + width - hpad) - clipx;
437 cliph = min(max(clipy, globaly + vpad) + cliph, globaly + height - vpad) - clipy;
438 clipx = max(clipx, globalx + hpad);
439 clipy = max(clipy, globaly + vpad);
442 for(Box b = getChild(0); b != null; b = b.nextSibling()) {
443 a.translate(b.x, b.y);
444 b.render(globalx, globaly, clipx, clipy, clipw, cliph, buf, a);
445 a.translate(-1 * b.x, -1 * b.y);
449 void renderStretchedImage(int globalx, int globaly, int clipx, int clipy, int clipw, int cliph, PixelBuffer buf) {
451 buf.drawPicture(image, clipx, clipy, clipx + clipw, clipy + cliph, 0, 0, image.getWidth(), image.getHeight());
454 void renderTiledImage(int globalx, int globaly, int x, int y, int w, int h, PixelBuffer buf) {
455 int iw = image.getWidth();
456 int ih = image.getHeight();
457 for(int i=(x - x)/iw; i <= (x + w - x)/iw; i++) {
458 for(int j=(y - y)/ih; j<= (y + h - y)/ih; j++) {
460 int dx1 = max(i * iw + x, x);
461 int dy1 = max(j * ih + y, y);
462 int dx2 = min((i+1) * iw + x, x + w);
463 int dy2 = min((j+1) * ih + y, y + h);
465 int sx1 = dx1 - (i*iw) - x;
466 int sy1 = dy1 - (j*ih) - y;
467 int sx2 = dx2 - (i*iw) - x;
468 int sy2 = dy2 - (j*ih) - y;
470 if (dx2 - dx1 > 0 && dy2 - dy1 > 0 && sx2 - sx1 > 0 && sy2 - sy1 > 0)
471 buf.drawPicture(image, dx1, dy1, dx2, dy2, sx1, sy1, sx2, sy2);
476 void renderText(int x, int y, int clipx, int clipy, int clipw, int cliph, PixelBuffer buf) {
477 for(int i=0; i<text.length(); i++) {
479 char c = text.charAt(i);
480 Glyph g = Glyph.getGlyph(font, fontsize, c);
481 buf.drawPictureAlphaOnly(g.p,
483 y + vpad + g.max_ascent - g.baseline,
484 x + hpad + g.p.getWidth(),
485 y + vpad + g.max_ascent - g.baseline + g.p.getHeight(),
487 g.p.getWidth(), g.p.getHeight(),
494 // Methods to implement org.xwt.js.JS //////////////////////////////////////
496 public Object callMethod(Object method, JS.Array args, boolean checkOnly) throws JS.Exn {
497 if ("indexof".equals(method)) {
498 if (checkOnly) return Boolean.TRUE;
499 if (args.length() != 1 || args.elementAt(0) == null || !(args.elementAt(0) instanceof Box)) return new Integer(-1);
500 Box b = (Box)args.elementAt(0);
501 if (b.parent != Box.this) {
502 if (redirect == null || redirect == Box.this) return new Integer(-1);
503 return redirect.callMethod(method, args, checkOnly);
505 return new Integer(b.getIndexInParent());
510 /** Returns the i_th child */
511 public Object get(int i) {
512 if (redirect == null) return null;
513 if (redirect != this) return redirect.get(i);
514 return i >= numChildren() || i < 0 ? null : getChild(i);
518 * Inserts value as child i; calls remove() if necessary.
519 * This method handles "reinserting" one of your children properly.
520 * INVARIANT: after completion, getChild(min(i, numChildren())) == newnode
521 * WARNING: O(n) runtime, unless i == numChildren()
523 public void put(int i, Object value) {
526 if (value != null && !(value instanceof Box)) {
527 if (Log.on) Log.logJS(this, "attempt to set a numerical property on a box to anything other than a box");
528 } else if (redirect == null) {
529 if (Log.on) Log.logJS(this, "attempt to add/remove children to/from a node with a null redirect");
530 put("0", (Box)value);
531 } else if (redirect != this) {
532 Box b = value == null ? (Box)redirect.get(i) : (Box)value;
533 redirect.put(i, value);
535 } else if (value == null) {
536 if (i >= 0 && i < numChildren()) {
542 Box newnode = (Box)value;
544 // check if box being moved is currently target of a redirect
545 for(Box cur = newnode.parent; cur != null; cur = cur.parent)
546 if (cur.redirect == newnode) {
547 if (Log.on) Log.logJS(this, "attempt to move a box that is the target of a redirect");
551 // check for recursive ancestor violation
552 for(Box cur = this; cur != null; cur = cur.parent)
553 if (cur == newnode) {
554 if (Log.on) Log.logJS(this, "attempt to make a node a parent of its own ancestor");
555 if (Log.on) Log.log(this, "box == " + this + " ancestor == " + newnode);
559 if (numKids > 15 && children == null) convert_to_array();
561 newnode.parent = this;
563 if (children == null) {
564 if (firstKid == null) {
566 newnode.prevSibling = newnode;
567 newnode.nextSibling = newnode;
568 } else if (i >= numKids) {
569 newnode.prevSibling = firstKid.prevSibling;
570 newnode.nextSibling = firstKid;
571 firstKid.prevSibling.nextSibling = newnode;
572 firstKid.prevSibling = newnode;
575 for(int j=0; j<i; j++) cur = cur.nextSibling;
576 newnode.prevSibling = cur.prevSibling;
577 newnode.nextSibling = cur;
578 cur.prevSibling.nextSibling = newnode;
579 cur.prevSibling = newnode;
580 if (i == 0) firstKid = newnode;
585 if (i >= children.size()) {
586 newnode.indexInParent = children.size();
587 children.addElement(newnode);
589 children.insertElementAt(newnode, i);
590 for(int j=i; j<children.size(); j++)
591 getChild(j).indexInParent = j;
595 // need both of these in case child was already uncalc'ed
598 MARK_FOR_REFLOW_this;
602 // note that JavaScript box[0] will invoke put(int i), not put(String s)
607 public Object get(Object key, Object key2) { return super.get(key, key2); }
608 public void put(Object key, Object key2, Object val) { super.put(key, key2, val); }
610 public Object get_(Object name) { return super.get(name); }
611 public Object get(Object name) { return get(name, false); }
612 public Object get(Object name_, boolean ignoretraps) {
613 if (name_ instanceof Number) return get(((Number)name_).intValue());
615 if (!(name_ instanceof String)) return null;
616 String name = (String)name_;
617 if (name.equals("")) return null;
619 // See if we're triggering a trap
620 Trap t = ignoretraps ? (Trap)null : (Trap)get(name, Trap.class);
621 if (t != null) return t.perform();
623 // Check for a special handler
624 SpecialBoxProperty gph = (SpecialBoxProperty)SpecialBoxProperty.specialBoxProperties.get(name);
625 if (gph != null) return gph.get(this);
627 Object ret = super.get(name);
628 if (name.startsWith("$") && ret == null)
629 if (Log.on) Log.logJS(this, "WARNING: attempt to access " + name + ", but no child with id=\"" +
630 name.substring(1) + "\" found");
634 public Object[] keys() {
635 Object[] ret = new Object[numChildren()];
636 for(int i=0; i<ret.length; i++) ret[i] = new Integer(i);
640 public void addTrap(Object name, Object value) { Trap.addTrap(this, name, ((JS.CompiledFunction)value)); }
641 public void delTrap(Object name, Object value) { Trap.delTrap(this, name, ((JS.CompiledFunction)value)); }
646 * @param ignoretraps if set, no traps will be triggered (set when 'cascade' reaches the bottom of the trap stack)
647 * @param rp if this put is being performed via a root proxy, rp is the root proxy.
649 public void put_(Object name, Object value) { super.put(name, value); }
650 public void put(Object name, Object value) { put(name, value, false); }
651 public void put(Object name_, Object value, boolean ignoretraps) {
652 if (name_ instanceof Number) { put(((Number)name_).intValue(), value); return; }
653 if (!(name_ instanceof String)) { super.put(name_,value); return; }
654 String name = name_.toString();
656 Trap t = (Trap)get(name, Trap.class);
663 // don't want to really cascade down to the box on this one
664 if (name.equals("0")) return;
666 SpecialBoxProperty gph = (SpecialBoxProperty)SpecialBoxProperty.specialBoxProperties.get(name);
667 if (gph != null) { gph.put(name, this, value); return; }
669 super.put(name, value);
673 // Tree Manipulation /////////////////////////////////////////////////////////////////////
675 /** The parent of this node */
676 private Box parent = null;
678 // Variables used in Vector mode */
679 /** INVARIANT: if (parent != null) parent.children.elementAt(indexInParent) == this */
680 private int indexInParent;
681 private Vec children = null;
683 // Variables used in linked-list mode
684 private int numKids = 0;
685 private Box nextSibling = null;
686 private Box prevSibling = null;
687 private Box firstKid = null;
689 // when we get more than 15 children, we switch to array-mode
690 private void convert_to_array() {
691 children = new Vec(numKids);
694 children.addElement(cur);
695 cur.indexInParent = children.size() - 1;
696 cur = cur.nextSibling;
697 } while (cur != firstKid);
700 /** remove this node from its parent; INVARIANT: whenever the parent of a node is changed, remove() gets called. */
701 public void remove() {
702 if (parent == null) {
703 if (surface != null) surface.dispose(true);
706 Box oldparent = parent;
707 if (oldparent == null) return;
708 MARK_FOR_REFLOW_this;
710 flags &= ~MOUSEINSIDE_FLAG;
712 if (parent.children != null) {
713 parent.children.removeElementAt(indexInParent);
714 for(int j=indexInParent; j<parent.children.size(); j++)
715 (parent.getChild(j)).indexInParent = j;
718 if (parent.firstKid == this) {
719 if (nextSibling == this) parent.firstKid = null;
720 else parent.firstKid = nextSibling;
723 prevSibling.nextSibling = nextSibling;
724 nextSibling.prevSibling = prevSibling;
730 if (oldparent != null) { Box b = oldparent; MARK_FOR_REFLOW_b; }
732 // note that JavaScript box[0] will invoke put(int i), not put(String s)
733 if (oldparent != null) oldparent.put("0", this);
736 /** returns our next sibling (parent[ourindex + 1]) */
737 public final Box nextSibling() {
738 if (parent == null) return null;
739 if (parent.children == null) {
740 if (nextSibling == parent.firstKid) return null;
743 if (indexInParent >= parent.children.size() - 1) return null;
744 return (Box)parent.children.elementAt(indexInParent + 1);
748 /** returns our next sibling (parent[ourindex + 1]) */
749 public final Box prevSibling() {
750 if (parent == null) return null;
751 if (parent.children == null) {
752 if (this == parent.firstKid) return null;
755 if (indexInParent == 0) return null;
756 return (Box)parent.children.elementAt(indexInParent - 1);
760 /** Returns the parent of this node */
761 public Box getParent() { return parent; }
763 /** Returns ith child */
764 public Box getChild(int i) {
765 if (children == null) {
766 if (firstKid == null) return null;
767 if (i >= numKids) return null;
768 if (i == numKids - 1) return firstKid.prevSibling;
770 for(int j=0; j<i; j++) cur = cur.nextSibling;
773 if (i >= children.size() || i < 0) return null;
774 return (Box)children.elementAt(i);
778 /** Returns the number of children */
779 public int numChildren() {
780 if (children == null) {
781 if (firstKid == null) return 0;
783 for(Box cur = firstKid.nextSibling; cur != firstKid; i++) cur = cur.nextSibling;
786 return children.size();
790 /** Returns our index in our parent */
791 public int getIndexInParent() {
792 if (parent == null) return 0;
793 if (parent.children == null) {
795 for(Box cur = this; cur != parent.firstKid; i++) cur = cur.prevSibling;
798 return indexInParent;
802 /** returns the root of the surface that this box belongs to */
803 public final Box getRoot() {
804 if (parent == null && surface != null) return this;
805 if (parent == null) return null;
806 return parent.getRoot();
810 // Trivial Helper Methods (should be inlined) /////////////////////////////////////////
812 static final int min(int a, int b) { if (a<b) return a; else return b; }
813 static final double min(double a, double b) { if (a<b) return a; else return b; }
814 static final int max(int a, int b) { if (a>b) return a; else return b; }
815 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; }
816 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; }
817 static final int bound(int a, int b, int c) { if (c < b) return c; if (a > b) return a; return b; }
818 final boolean inside(int x, int y) { return (!((flags & INVISIBLE_FLAG) != 0) && x >= 0 && y >= 0 && x < width && y < height); }
820 /** figures out what box in this subtree of the Box owns the pixel at x,y relitave to the Surface */
821 public static Box whoIs(Box cur, int x, int y) {
823 if (cur.parent != null) throw new Error("whoIs may only be invoked on the root box of a surface");
827 // WARNING: this method is called from the event-queueing
828 // thread -- it may run concurrently with ANY part of XWT, and
829 // is UNSYNCHRONIZED for performance reasons. BE CAREFUL
832 if ((cur.flags & INVISIBLE_FLAG) != 0) return null;
833 if (!cur.inside(x - globalx, y - globaly)) return cur.parent == null ? cur : null;
835 for(int i=cur.numChildren() - 1; i>=0; i--) {
836 Box child = cur.getChild(i);
837 if (child == null) continue; // since this method is unsynchronized, we have to double-check
840 if (!((child.flags & INVISIBLE_FLAG) != 0) && child.inside(x - globalx, y - globaly)) { cur = child; continue OUTER; }
850 * A helper class for properties of Box which require special
853 * To avoid excessive use of String.equals(), the Box.get() and
854 * Box.put() methods employ a Hash keyed on property names that
855 * require special handling. The value stored in the Hash is an
856 * instance of an anonymous subclass of SpecialBoxProperty, which knows
857 * how to handle get()s and put()s for that property name. There
858 * should be one anonymous subclass of SpecialBoxProperty for each
859 * specially-handled property on Box.
861 static class SpecialBoxProperty {
863 SpecialBoxProperty() { }
865 /** stores instances of SpecialBoxProperty; keyed on property name */
866 static Hash specialBoxProperties = new Hash(200, 3);
868 /** this method defines the behavior when the property is get()ed from b */
869 Object get(Box b) { return null; }
871 /** this method defines the behavior when the property is put() to b */
872 void put(Box b, Object value) { }
874 /** this method defines the behavior when the property is put() to b, allows a single SpecialBoxProperty to serve multiple properties */
875 void put(String name, Box b, Object value) { put(b, value); }
878 //#repeat fill/stroke fillcolor/strokecolor
879 specialBoxProperties.put("fill", new SpecialBoxProperty() {
880 public Object get(Box b) {
881 if ((b.fillcolor & 0xFF000000) == 0) return null;
882 String red = Integer.toHexString((b.fillcolor & 0x00FF0000) >> 16);
883 String green = Integer.toHexString((b.fillcolor & 0x0000FF00) >> 8);
884 String blue = Integer.toHexString(b.fillcolor & 0x000000FF);
885 if (red.length() < 2) red = "0" + red;
886 if (blue.length() < 2) blue = "0" + blue;
887 if (green.length() < 2) green = "0" + green;
888 return "#" + red + green + blue;
890 public void put(Box b, Object value) {
891 int newcolor = b.fillcolor;
892 String s = value == null ? null : value.toString();
893 if (value == null) newcolor = 0x00000000;
894 else if (s.length() > 0 && s.charAt(0) == '#')
896 newcolor = 0xFF000000 |
897 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
898 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
899 Integer.parseInt(s.substring(5, 7), 16);
900 } catch (NumberFormatException e) {
901 Log.log(this, "invalid color " + s);
904 else if (org.xwt.translators.SVG.colors.get(s) != null)
905 newcolor = 0xFF000000 | ((Integer)org.xwt.translators.SVG.colors.get(s)).intValue();
906 if (newcolor == b.fillcolor) return;
907 b.fillcolor = newcolor;
913 specialBoxProperties.put("color", new SpecialBoxProperty() {
914 public Object get(Box b) { return b.get("fill"); }
915 public void put(Box b, Object value) { b.put("fill", value); }
918 specialBoxProperties.put("textcolor", new SpecialBoxProperty() {
919 public Object get(Box b) { return b.get("stroke"); }
920 public void put(Box b, Object value) { b.put("stroke", value); }
923 specialBoxProperties.put("text", new SpecialBoxProperty() {
924 public Object get(Box b) { return b.text; }
925 public void put(Box b, Object value) {
926 String t = value == null ? "null" : value.toString();
927 if (t.equals(b.text)) return;
930 if (b.textwidth != 0 || b.textheight != 0) MARK_FOR_REFLOW_b;
931 b.textwidth = b.textheight = 0;
936 for(int i=0; i<b.text.length(); i++) {
937 Glyph g = Glyph.getGlyph(b.font, b.fontsize, b.text.charAt(i));
938 b.textwidth += g.advance;
939 b.textheight = g.max_ascent + g.max_descent;
941 } catch (Exception e) {
948 specialBoxProperties.put("path", new SpecialBoxProperty() {
949 public Object get(Box b) { throw new JS.Exn("cannot read from the path property"); }
950 public void put(Box b, Object value) {
951 String t = value == null ? "null" : value.toString();
952 b.path = value == null ? null : VectorGraphics.parseVectorPath(value.toString());
957 specialBoxProperties.put("transform", new SpecialBoxProperty() {
958 public void put(Box b, Object value) {
959 String t = value.toString().trim();
960 b.transform = VectorGraphics.Affine.identity();
961 while (t.length() > 0) {
962 if (t.startsWith("skewX(")) {
965 } else if (t.startsWith("shear(")) {
966 // FIXME: nonstandard; remove this
967 b.transform.multiply(VectorGraphics.Affine.shear(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(')')))));
969 } else if (t.startsWith("skewY(")) {
972 } else if (t.startsWith("rotate(")) {
973 String sub = t.substring(t.indexOf('(') + 1, t.indexOf(')'));
974 if (sub.indexOf(',') != -1) {
975 float angle = Float.parseFloat(sub.substring(0, sub.indexOf(',')));
976 sub = sub.substring(sub.indexOf(',') + 1);
977 float cx = Float.parseFloat(sub.substring(0, sub.indexOf(',')));
978 sub = sub.substring(sub.indexOf(',') + 1);
979 float cy = Float.parseFloat(sub);
980 b.transform.multiply(VectorGraphics.Affine.translate(cx, cy));
981 b.transform.multiply(VectorGraphics.Affine.rotate(angle));
982 b.transform.multiply(VectorGraphics.Affine.translate(-1 * cx, -1 * cy));
984 b.transform.multiply(VectorGraphics.Affine.rotate(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(')')))));
987 } else if (t.startsWith("translate(")) {
988 String sub = t.substring(t.indexOf('(') + 1, t.indexOf(')'));
989 if (sub.indexOf(',') > -1) {
990 b.transform.multiply(VectorGraphics.Affine.translate(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(','))),
991 Float.parseFloat(t.substring(t.indexOf(',') + 1, t.indexOf(')')))));
993 b.transform.multiply(VectorGraphics.Affine.translate(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(','))), 0));
996 } else if (t.startsWith("flip(")) {
997 String which = t.substring(t.indexOf('(') + 1, t.indexOf(')'));
998 b.transform.multiply(VectorGraphics.Affine.flip(which.equals("horizontal"), which.equals("vertical")));
1000 } else if (t.startsWith("scale(")) {
1001 String sub = t.substring(t.indexOf('(') + 1, t.indexOf(')'));
1002 if (sub.indexOf(',') > -1) {
1003 b.transform.multiply(VectorGraphics.Affine.scale(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(','))),
1004 Float.parseFloat(t.substring(t.indexOf(',') + 1, t.indexOf(')')))));
1006 b.transform.multiply(VectorGraphics.Affine.scale(Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(','))),
1007 Float.parseFloat(t.substring(t.indexOf('(') + 1, t.indexOf(',')))));
1010 } else if (t.startsWith("matrix(")) {
1011 // FIXME: is this mapped right?
1012 float d[] = new float[6];
1013 StringTokenizer st = new StringTokenizer(t, ",", false);
1014 for(int i=0; i<6; i++)
1015 d[i] = Float.parseFloat(st.nextToken());
1016 b.transform.multiply(new VectorGraphics.Affine(d[0], d[1], d[2], d[3], d[4], d[5]));
1018 t = t.substring(t.indexOf(')') + 1).trim();
1022 public Object get(Box b) { return b.transform.toString(); }
1025 specialBoxProperties.put("font", new SpecialBoxProperty() {
1026 public Object get(Box b) { return b.font; }
1027 public void put(Box b, Object value) {
1028 // FIXME: translate value into a resource if it is a string
1029 b.font = value == null ? null : (Res)value;
1031 b.flags |= FONT_CHANGED_FLAG;
1035 specialBoxProperties.put("fontsize", new SpecialBoxProperty() {
1036 public Object get(Box b) { return b.font; }
1037 public void put(Box b, Object value) {
1038 if (b.fontsize == stoi(value)) return;
1039 b.fontsize = stoi(value);
1041 b.flags |= FONT_CHANGED_FLAG;
1045 specialBoxProperties.put("strokewidth", new SpecialBoxProperty() {
1046 public Object get(Box b) { return new Integer(b.strokewidth); }
1047 public void put(Box b, Object value) {
1048 if (b.strokewidth == stoi(value)) return;
1049 b.strokewidth = stoi(value);
1053 specialBoxProperties.put("thisbox", new SpecialBoxProperty() {
1054 public Object get(Box b) { return b; }
1055 public void put(Box b, Object value) {
1056 if (value == null) b.remove();
1057 else if (value.equals("window") || value.equals("frame")) Platform.createSurface(b, value.equals("frame"), true);
1058 else if (Log.on) Log.log(this, "put invalid value to 'thisbox' property: " + value);
1062 specialBoxProperties.put("orient", new SpecialBoxProperty() {
1063 public Object get(Box b) {
1064 Log.log(this, "warning: the orient property is deprecated");
1065 if (b.redirect == null) return "horizontal";
1066 else if (b.redirect != b) return get(b.redirect);
1067 else if (b.cols == 1) return "vertical";
1068 else if (b.rows == 1) return "horizontal";
1071 public void put(Box b, Object value) {
1072 Log.log(this, "warning: the orient property is deprecated");
1073 if (value == null) return;
1074 if (b.redirect == null) return;
1075 if (b.redirect != b) { put(b.redirect, value); return; }
1076 if (value.equals("vertical")) {
1077 if (b.rows == 0) return;
1078 b.rows = 0; b.cols = 1;
1079 } else if (value.equals("horizontal")) {
1080 if (b.cols == 0) return;
1081 b.cols = 0; b.rows = 1;
1083 Log.log(this, "invalid value put to orient property: " + value);
1088 specialBoxProperties.put("static", new SpecialBoxProperty() {
1091 specialBoxProperties.put("shrink", new SpecialBoxProperty() {
1092 public Object get(Box b) { return (((b.flags & HSHRINK_FLAG) != 0) || ((b.flags & VSHRINK_FLAG) != 0)) ? Boolean.TRUE : Boolean.FALSE; }
1093 public void put(Box b, Object value) { b.put("hshrink", value); b.put("vshrink", value); }
1096 //#repeat hshrink/vshrink HSHRINK_FLAG/VSHRINK_FLAG
1097 specialBoxProperties.put("hshrink", new SpecialBoxProperty() {
1098 public Object get(Box b) { return new Boolean((b.flags & HSHRINK_FLAG) != 0); }
1099 public void put(Box b, Object value) {
1100 boolean newshrink = stob(value);
1101 if (((b.flags & HSHRINK_FLAG) != 0) == newshrink) return;
1102 if (newshrink) b.flags |= HSHRINK_FLAG; else b.flags &= ~HSHRINK_FLAG;
1109 specialBoxProperties.put("x", new SpecialBoxProperty() {
1110 public Object get(Box b) {
1111 if (b.surface == null) return new Integer(0);
1112 if ((b.flags & INVISIBLE_FLAG) != 0) return new Integer(0);
1113 return new Integer(b.x);
1115 public void put(Box b, Object value) {
1116 if (!((b.flags & ABSOLUTE_FLAG) != 0)) return;
1117 int x = stoi(value);
1118 if (x == b.x) return;
1121 if (b.parent == null && b.surface != null) b.surface.setLocation();
1128 //#repeat width/height minwidth/minheight maxwidth/maxheight
1129 specialBoxProperties.put("width", new SpecialBoxProperty() {
1130 public Object get(Box b) { return new Integer(b.width); }
1131 public void put(Box b, Object value) {
1132 b.width = stoi(value);
1133 if (b.parent == null && b.surface != null) {
1134 b.surface.setSize();
1137 if (b.minwidth == b.width && b.maxwidth == b.width) return;
1138 b.minwidth = b.maxwidth = b.width;
1144 //#repeat cols/rows rows/cols
1145 specialBoxProperties.put("cols", new SpecialBoxProperty() {
1146 public Object get(Box b) { return new Double(b.cols); }
1147 public void put(Box b, Object value) {
1148 if (b.cols == stoi(value)) return;
1149 b.cols = stoi(value);
1150 if (b.cols == 0 && b.rows == 0) b.rows = 1;
1151 if (b.cols != 0 && b.rows != 0) b.rows = 0;
1156 //#repeat colspan/rowspan
1157 specialBoxProperties.put("colspan", new SpecialBoxProperty() {
1158 public Object get(Box b) { return new Double(b.colspan); }
1159 public void put(Box b, Object value) {
1160 if (b.colspan == stoi(value)) return;
1161 b.colspan = stoi(value);
1167 specialBoxProperties.put("tile", new SpecialBoxProperty() {
1168 public Object get(Box b) { return ((b.flags & TILE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1169 public void put(Box b, Object value) {
1170 if (((b.flags & TILE_FLAG) != 0) == stob(value)) return;
1171 if (stob(value)) b.flags |= TILE_FLAG; else b.flags &= ~TILE_FLAG;
1175 specialBoxProperties.put("noclip", new SpecialBoxProperty() {
1176 public Object get(Box b) { return ((b.flags & NOCLIP_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1177 public void put(Box b, Object value) {
1178 if (((b.flags & NOCLIP_FLAG) != 0) == stob(value)) return;
1179 if (stob(value)) b.flags |= NOCLIP_FLAG; else b.flags &= ~NOCLIP_FLAG;
1184 specialBoxProperties.put("invisible", new SpecialBoxProperty() {
1185 public Object get(Box b) {
1186 for (Box cur = b; cur != null; cur = cur.parent) {
1187 if ((cur.flags & INVISIBLE_FLAG) != 0) return Boolean.TRUE; }
1188 return Boolean.FALSE;
1190 public void put(Box b, Object value) {
1191 if (stob(value) == ((b.flags & INVISIBLE_FLAG) != 0)) return;
1192 if (stob(value)) b.flags |= INVISIBLE_FLAG; else b.flags &= ~INVISIBLE_FLAG;
1193 if (b.parent == null) {
1194 if (b.surface != null) b.surface.setInvisible((b.flags & INVISIBLE_FLAG) != 0);
1197 MARK_FOR_REFLOW_b_parent;
1198 b.parent.dirty(b.x, b.y, b.width, b.height);
1202 specialBoxProperties.put("absolute", new SpecialBoxProperty() {
1203 public Object get(Box b) { return ((b.flags & ABSOLUTE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1204 public void put(Box b, Object value) {
1205 if (stob(value) == ((b.flags & ABSOLUTE_FLAG) != 0)) return;
1206 if (stob(value)) b.flags |= ABSOLUTE_FLAG; else b.flags &= ~ABSOLUTE_FLAG;
1207 if ((b.flags & ABSOLUTE_FLAG) != 0) { b.x = 0; b.y = 0; }
1208 if (b.parent != null) MARK_FOR_REFLOW_b_parent;
1211 specialBoxProperties.put("image", new SpecialBoxProperty() {
1213 public Object get(Box b) { return b.image == null ? null : ImageDecoder.imageToNameMap.get(b.image); }
1215 public void put(Box b, Object value) {
1216 //if (image != null) System.out.println("hit");
1217 if (value == null) {
1219 } else if (value instanceof Res) {
1220 b.image = Picture.fromRes((Res)value);
1224 b.minwidth = min(b.maxwidth, max(b.minwidth, b.image == null ? 0 : b.image.getWidth()));
1225 b.minheight = min(b.maxheight, max(b.minheight, b.image == null ? 0 : b.image.getHeight()));
1231 //#repeat globalx/globaly x/y
1232 specialBoxProperties.put("globalx", new SpecialBoxProperty() {
1233 public Object get(Box b) { return new Integer(b.parent == null || b.surface == null ? 0 : b.x); }
1234 public void put(Box b, Object value) {
1235 if (b.surface == null || b.parent == null) return;
1236 b.put("x", new Integer(stoi(value) - stoi(get(b.parent))));
1242 specialBoxProperties.put("cursor", new SpecialBoxProperty() {
1243 public Object get(Box b) { return b.cursor; }
1244 public void put(Box b, Object value) {
1245 b.cursor = (String)value;
1246 if (b.surface == null) return;
1248 // see if we need to update the surface cursor
1249 Surface surface = b.getRoot().surface;
1250 String tempcursor = surface.cursor;
1251 b.Move(surface.mousex, surface.mousey, surface.mousex, surface.mousey);
1252 if (surface.cursor != tempcursor) surface.syncCursor();
1256 //#repeat mousex/mousey x/y
1257 specialBoxProperties.put("mousex", new SpecialBoxProperty() {
1258 public Object get(Box b) {
1259 Surface surface = b.getRoot().surface;
1260 if (surface == null) return new Integer(0);
1261 int mousex = surface.mousex;
1262 for(Box cur = b; cur != null && cur.parent != null; cur = cur.parent) mousex -= cur.x;
1263 return new Integer(mousex);
1268 specialBoxProperties.put("mouseinside", new SpecialBoxProperty() {
1269 public Object get(Box b) {
1270 return ((b.flags & MOUSEINSIDE_FLAG) != 0) ? Boolean.TRUE : Boolean.FALSE; }
1273 specialBoxProperties.put("numchildren", new SpecialBoxProperty() {
1274 public Object get(Box b) {
1275 if (b.redirect == null) return new Integer(0);
1276 if (b.redirect != b) return get(b.redirect);
1277 return new Integer(b.numChildren());
1280 SpecialBoxProperty mouseEventHandler = new SpecialBoxProperty() {
1281 public void put(String name, Box b, Object value) {
1282 Surface surface = b.getRoot().surface;
1283 if (surface == null) return;
1284 int mousex = surface.mousex;
1285 int mousey = surface.mousey;
1286 for(Box c = b.parent; c != null && c.parent != null; c = c.parent) {
1290 for(Box c = b.prevSibling(); c != null; c = c.prevSibling()) {
1291 if (c.inside(mousex - c.x, mousey - c.y)) {
1296 if (b.parent != null) b.parent.put(name, value);
1299 specialBoxProperties.put("Press1", mouseEventHandler);
1300 specialBoxProperties.put("Press2", mouseEventHandler);
1301 specialBoxProperties.put("Press3", mouseEventHandler);
1302 specialBoxProperties.put("Release1", mouseEventHandler);
1303 specialBoxProperties.put("Release2", mouseEventHandler);
1304 specialBoxProperties.put("Release3", mouseEventHandler);
1305 specialBoxProperties.put("Click1", mouseEventHandler);
1306 specialBoxProperties.put("Click2", mouseEventHandler);
1307 specialBoxProperties.put("Click3", mouseEventHandler);
1308 specialBoxProperties.put("DoubleClick1", mouseEventHandler);
1309 specialBoxProperties.put("DoubleClick2", mouseEventHandler);
1310 specialBoxProperties.put("DoubleClick3", mouseEventHandler);
1312 specialBoxProperties.put("root", new SpecialBoxProperty() {
1313 public void put(Box b, Object value) {
1314 if (stob(value)) b.flags |= ISROOT_FLAG;
1315 else b.flags &= ~ISROOT_FLAG;
1317 public Object get(Box b) {
1318 if (b.parent == null || ((b.flags & ISROOT_FLAG) != 0)) return b;
1319 else return get(b.parent);
1322 specialBoxProperties.put("Minimized", new SpecialBoxProperty() {
1323 public Object get(Box b) {
1324 if (b.parent == null && b.surface != null) return b.surface.minimized ? Boolean.TRUE : Boolean.FALSE;
1327 public void put(Box b, Object value) {
1328 if (b.surface == null) return;
1329 boolean val = stob(value);
1330 if (b.parent == null && b.surface.minimized != val) b.surface.setMinimized(val);
1334 specialBoxProperties.put("Maximized", new SpecialBoxProperty() {
1335 public Object get(Box b) {
1336 if (b.parent == null && b.surface != null) return b.surface.maximized ? Boolean.TRUE : Boolean.FALSE;
1339 public void put(Box b, Object value) {
1340 if (b.surface == null) return;
1341 boolean val = stob(value);
1342 if (b.parent == null && b.surface.maximized != val) b.surface.setMaximized(val);
1346 specialBoxProperties.put("toback", new SpecialBoxProperty() {
1347 public void put(Box b, Object value) {
1348 if (b.parent == null && stob(value) && b.surface != null) b.surface.toBack();
1352 specialBoxProperties.put("tofront", new SpecialBoxProperty() {
1353 public void put(Box b, Object value) {
1354 if (b.parent == null && stob(value) && b.surface != null) b.surface.toFront();
1358 specialBoxProperties.put("Close", new SpecialBoxProperty() {
1359 public void put(Box b, Object value) {
1360 if (b.parent == null && b.surface != null) b.surface.dispose(true);
1364 // these are all do-nothings; just to prevent space from getting taken up in the params Hash.
1365 specialBoxProperties.put("KeyPressed", new SpecialBoxProperty());
1366 specialBoxProperties.put("KeyReleased", new SpecialBoxProperty());
1367 specialBoxProperties.put("PosChange", new SpecialBoxProperty());
1368 specialBoxProperties.put("SizeChange", new SpecialBoxProperty());
1371 specialBoxProperties.put("hpad", new SpecialBoxProperty() {
1372 public Object get(Box b) {
1373 if (b.redirect == null) return new Integer(0);
1374 if (b.redirect != b) return get(b.redirect);
1375 return new Integer(b.hpad);
1377 public void put(Box b, Object value) {
1378 if (b.redirect == null) return;
1379 if (b.redirect != b) { put(b.redirect, value); return; }
1380 int newval = stoi(value);
1381 if (newval == b.hpad) return;
1388 //#repeat minwidth/minheight maxwidth/maxheight
1389 specialBoxProperties.put("minwidth", new SpecialBoxProperty() {
1390 public Object get(Box b) { return new Integer(b.minwidth); }
1391 public void put(Box b, Object value) {
1392 if (stoi(value) == b.minwidth) return;
1393 b.minwidth = stoi(value);
1397 specialBoxProperties.put("maxwidth", new SpecialBoxProperty() {
1398 public Object get(Box b) { return new Integer(b.maxwidth); }
1399 public void put(Box b, Object value) {
1400 if (stoi(value) == b.maxwidth) return;
1401 b.maxwidth = stoi(value);
1407 specialBoxProperties.put("redirect", new SpecialBoxProperty() {
1408 public void put(Box b, Object value) {
1409 if (b.redirect != b) Log.log(this, "cannot change the redirect of a box once it is set");
1410 else if (value == null) b.redirect = null;
1412 Box b2 = (Box)value;
1413 while(b2 != b && b2 != null) b2 = b2.parent;
1414 if (b2 == null) Log.log(this, "a box's redirect must be one of its descendants");
1415 b.redirect = (Box)value;
1418 public Object get(Box b) {
1419 if (b.redirect == null) return null;
1420 if (b.redirect == b) return Boolean.TRUE;
1421 return get(b.redirect);
1425 // FEATURE: this still isn't totally harmonious; when you createSurface, these aren't checked
1426 specialBoxProperties.put("titlebar", new SpecialBoxProperty() {
1427 public void put(Box b, Object value) {
1428 if (b.surface != null) b.surface.setTitleBarText(value.toString());
1429 b.put_("titlebar", value);
1431 public Object get(Box b) { return b.get_("titlebar"); }
1434 specialBoxProperties.put("icon", new SpecialBoxProperty() {
1437 public void put(Box b, Object value) {
1438 b.put_("icon", value);
1439 if (b.surface == null) return;
1440 Picture pic = ImageDecoder.getPicture(value.toString());
1441 if (pic != null) b.surface.setIcon(pic);
1442 else if (Log.on) Log.log(this, "unable to load icon " + value);
1444 public Object get(Box b) { return b.get_("icon"); }
1450 /** helper that converts a String to a boolean according to JavaScript coercion rules */
1451 public static boolean stob(Object o) {
1452 if (o == null) return false;
1453 return Boolean.TRUE.equals(o) || "true".equals(o);
1456 /** helper that converts a String to an int according to JavaScript coercion rules */
1457 public static int stoi(Object o) {
1458 if (o == null) return 0;
1459 if (o instanceof Integer) return ((Integer)o).intValue();
1462 if (!(o instanceof String)) s = o.toString();
1465 try { return Integer.parseInt(s.indexOf('.') == -1 ? s : s.substring(0, s.indexOf('.'))); }
1466 catch (NumberFormatException e) { return 0; }