1
2
3 package org.xwt;
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11
12
13
14 import java.io.*;
15 import java.net.*;
16 import java.util.*;
17 import org.xwt.js.*;
18 import org.xwt.util.*;
19 import org.xwt.translators.*;
20
21
43 public final class Box extends JSScope implements Scheduler.Task {
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61 void mark_for_repack() { MARK_REPACK; }
62
63 protected Box() { super(null); }
64
65 static Hash boxToCursor = new Hash(500, 3);
66 public static final int MAX_LENGTH = Integer.MAX_VALUE;
67 static final Font DEFAULT_FONT;
68
69 static {
70 Font f = null;
71 try { f = Font.getFont((Stream)Main.builtin.get("fonts/vera/Vera.ttf"), 10); }
72 catch(JSExn e) { Log.info(Box.class, "should never happen: "+e); }
73 DEFAULT_FONT = f;
74 }
75
76
77
78 static final String[] props = new String[] {
79 "shrink", "hshrink", "vshrink", "x", "y", "width", "height", "cols", "rows",
80 "colspan", "rowspan", "align", "visible", "packed", "globalx", "globaly",
81 "minwidth", "maxwidth", "minheight", "maxheight", "indexof", "thisbox", "clip",
82 "numchildren", "redirect", "cursor", "mouse"
83 };
84
85
86
87 static final String[] events = new String[] {
88 "Press1", "Press2", "Press3",
89 "Release1", "Release2", "Release3",
90 "Click1", "Click2", "Click3",
91 "DoubleClick1", "DoubleClick2", "DoubleClick3",
92 "Enter", "Leave", "Move",
93 "KeyPressed", "KeyReleased", "PosChange", "SizeChange",
94 "childadded", "childremoved",
95 "Focused", "Maximized", "Minimized", "Close",
96 "icon", "titlebar", "toback", "tofront"
97 };
98
99
100
101 static final int MOUSEINSIDE = 0x00000001;
102 static final int VISIBLE = 0x00000002;
103 static final int PACKED = 0x00000004;
104 static final int HSHRINK = 0x00000008;
105 static final int VSHRINK = 0x00000010;
106 static final int BLACK = 0x00000020;
107
108 static final int FIXED = 0x00000040;
109 static final boolean ROWS = true;
110 static final boolean COLS = false;
111
112 static final int ISROOT = 0x00000080;
113 static final int REPACK = 0x00000100;
114 static final int REFLOW = 0x00000200;
115 static final int RESIZE = 0x00000400;
116 static final int RECONSTRAIN = 0x00000800;
117 static final int ALIGN_TOP = 0x00001000;
118 static final int ALIGN_BOTTOM = 0x00002000;
119 static final int ALIGN_LEFT = 0x00004000;
120 static final int ALIGN_RIGHT = 0x00008000;
121 static final int ALIGNS = 0x0000f000;
122 static final int CURSOR = 0x00010000;
123 static final int CLIP = 0x00020000;
124 static final int STOP_UPWARD_PROPAGATION = 0x00040000;
125
126
127
128
129 Box parent = null;
130 Box redirect = this;
131 int flags = VISIBLE | PACKED | REPACK | REFLOW | RESIZE | FIXED | STOP_UPWARD_PROPAGATION | CLIP;
132
133 private String text = null;
134 private Font font = DEFAULT_FONT;
135 private Picture texture = null;
136 private short strokewidth = 1;
137 public int fillcolor = 0x00000000;
138 private int strokecolor = 0xFF000000;
139
140 private int aspect = 0;
141
142
143 public LENGTH minwidth = 0;
144 public LENGTH maxwidth = MAX_LENGTH;
145 public LENGTH minheight = 0;
146 public LENGTH maxheight = MAX_LENGTH;
147 private short rows = 1;
148 private short cols = 0;
149 private short rowspan = 1;
150 private short colspan = 1;
151
152
153 private short row = 0;
154 private short col = 0;
155 public LENGTH x = 0;
156 public LENGTH y = 0;
157 public LENGTH width = 0;
158 public LENGTH height = 0;
159 private LENGTH contentwidth = 0;
160 private LENGTH contentheight = 0;
161
162
168
169
170
171
172
173 public void perform() throws JSExn {
174
175
176
177 if (texture != null) {
178 if (texture.isLoaded) { minwidth = min(texture.width, maxwidth); minheight = min(texture.height, maxheight); }
179 else { JS res = texture.stream; texture = null; throw new JSExn("image not found: "+res); }
180 }
181
182 MARK_REPACK;
183 MARK_REFLOW;
184 MARK_RESIZE;
185 dirty();
186 }
187
188 public Box getRoot() { return parent == null ? this : parent.getRoot(); }
189 public Surface getSurface() { return Surface.fromBox(getRoot()); }
190
191
192
193 public void dirty() { dirty(0, 0, width, height); }
194 public void dirty(int x, int y, int w, int h) {
195 for(Box cur = this; cur != null; cur = cur.parent) {
196
197 if (cur.parent != null && cur.test(CLIP)) {
198 w = min(x + w, cur.width) - max(x, 0);
199 h = min(y + h, cur.height) - max(y, 0);
200 x = max(x, 0);
201 y = max(y, 0);
202 }
203 if (w <= 0 || h <= 0) return;
204 if (cur.parent == null && cur.getSurface() != null) cur.getSurface().dirty(x, y, w, h);
205 x += cur.x;
206 y += cur.y;
207 }
208 }
209
210
211
212
213
214 private static int[] numRowsInCol = new int[65535];
215 private static LENGTH[] colWidth = new LENGTH[65535];
216 private static LENGTH[] colMaxWidth = new LENGTH[65535];
217 private static LENGTH[] rowHeight = new LENGTH[65535];
218 private static LENGTH[] rowMaxHeight = new LENGTH[65535];
219 static { for(int i=0; i<rowMaxHeight.length; i++) { rowMaxHeight[i] = MAX_LENGTH; colMaxWidth[i] = MAX_LENGTH; } }
220
221 Box nextPackedSibling() { Box b = nextSibling(); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
222 Box firstPackedChild() { Box b = getChild(0); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
223
224
225 void repack() {
226 for(Box child = getChild(0); child != null; child = child.nextSibling()) child.repack();
227
228
229 if (test(FIXED) == COLS) {
230 short r = 0;
231 for(Box child = firstPackedChild(); child != null; r++) {
232 for(shortshort numclear=0; child != null && c < cols; c++) {
233 if (numRowsInCol[c] > r) { numclear = 0; continue; }
234 if (c != 0 && c + min(cols, child.colspan) - numclear > cols) break;
235 if (++numclear < min(cols, child.colspan)) continue;
236 for(int i=c - numclear + 1; i <= c; i++) numRowsInCol[i] += child.rowspan;
237 child.col = (short)(c - numclear + 1); child.row = r;
238 rows = (short)max(rows, child.row + child.rowspan);
239 child = child.nextPackedSibling();
240 numclear = 0;
241 }
242 }
243 for(int i=0; i<cols; i++) numRowsInCol[i] = 0;
244 }
245
246
247
248
249 contentwidth = 0;
250 for(Box child = firstPackedChild(); child != null; child = child.nextPackedSibling())
251 colWidth[child.col] = max(colWidth[child.col], child.contentwidth / child.colspan);
252 for(int i=0; i<cols; i++) { contentwidth += colWidth[i]; colWidth[i] = 0; }
253 contentwidth = bound(minwidth, max(font == null || text == null ? 0 : font.textwidth(text), contentwidth), maxwidth);
254
255 }
256
257 void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
258 if (x != this.x || y != this.y || width != this.width || height != this.height) {
259 boolean sizechange = (this.width != width || this.height != height) && getTrap("SizeChange") != null;
260 boolean poschange = (this.x != x || this.y != y) && getTrap("PosChange") != null;
261
262 int thisx = parent == null ? 0 : this.x;
263 int thisy = parent == null ? 0 : this.y;
264
265
266
267
268
269
281 (parent == null ? this : parent).dirty(thisx, thisy, this.width, this.height);
282 this.width = width; this.height = height; this.x = x; this.y = y;
283 dirty();
284
285
286 if (sizechange) putAndTriggerTrapsAndCatchExceptions("SizeChange", T);
287 if (poschange) putAndTriggerTrapsAndCatchExceptions("PosChange", T);
288 }
289 }
290
291 void resize_children() {
292
293
294
295
296 int x_slack = width;
297 for(int i=0; i<cols; i++) x_slack -= colWidth[i];
298 for(Box child = firstPackedChild(); child != null; child = child.nextPackedSibling())
299 for(int i=child.col; i < child.col + child.colspan; i++) {
300 x_slack += colWidth[i];
301 colWidth[i] = max(colWidth[i], child.contentwidth / child.colspan);
302 x_slack -= colWidth[i];
303 colMaxWidth[i] = min(colMaxWidth[i], child.test(HSHRINK) ? child.contentwidth : child.maxwidth) / child.colspan;
304 }
305
306
307 for(int startslack = 0; x_slack > 0 && cols > 0 && startslack != x_slack;) {
308 int increment = max(1, x_slack / cols);
309 startslack = x_slack;
310 for(short col=0; col < cols; col++) {
311
312 int diff = min(min(colMaxWidth[col], colWidth[col] + increment) - colWidth[col], x_slack);
313 x_slack -= diff;
314 colWidth[col] += diff;
315 }
316 }
317
318
319
320 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
321 if (!child.test(VISIBLE)) continue;
322 intintintintdth, child_height, child_x, child_y;
323 if (!child.test(PACKED)) {
324 child_x = child.x;
325 child_y = child.y;
326 child_width = child.test(HSHRINK) ? child.contentwidth : min(child.maxwidth, width - child_x);
327 child_height = child.test(VSHRINK) ? child.contentheight : min(child.maxheight, height - child_y);
328 child_width = max(child.minwidth, child_width);
329 child_height = max(child.minheight, child_height);
330 } else {
331 int unbounded;
332
333
334
335 unbounded = 0;
336 for(int i = child.col; i < child.col + child.colspan; i++) unbounded += colWidth[i];
337 child_width = min(unbounded, child.test(HSHRINK) ? child.contentwidth : child.maxwidth);
338 child_x = test(ALIGN_RIGHT) ? x_slack : test(ALIGN_LEFT) ? 0 : x_slack / 2;
339 for(int i=0; i < child.col; i++) child_x += colWidth[i];
340 if (child_width > unbounded) child_x -= (child_width - unbounded) / 2;
341
342 }
343 child.resize(child_x, child_y, child_width, child_height);
344 }
345
346
347 for(int i=0; i<cols; i++) { colWidth[i] = 0; colMaxWidth[i] = MAX_LENGTH; }
348 for(int i=0; i<rows; i++) { rowHeight[i] = 0; rowMaxHeight[i] = MAX_LENGTH; }
349
350 for(Box child = getChild(0); child != null; child = child.nextSibling())
351 if (test(VISIBLE))
352 child.resize_children();
353 }
354
355
356
357
358
359
360 void render(int parentx, int parenty, int cx1, int cy1, int cx2, int cy2, PixelBuffer buf, VectorGraphics.Affine a) {
361 if (!test(VISIBLE)) return;
362 int globalx = parentx + (parent == null ? 0 : x);
363 int globaly = parenty + (parent == null ? 0 : y);
364
365
366
367 if (test(CLIP)) {
368 cx1 = max(cx1, parent == null ? 0 : globalx);
369 cy1 = max(cy1, parent == null ? 0 : globaly);
370 cx2 = min(cx2, globalx + width);
371 cy2 = min(cy2, globaly + height);
372 if (cx2 <= cx1 || cy2 <= cy1) return;
373 }
374
375 if ((fillcolor & 0xFF000000) != 0x00000000 || parent == null)
376 buf.fillTrapezoid(cx1, cx2, cy1, cx1, cx2, cy2, (fillcolor & 0xFF000000) == 0 ? 0xffffffff : fillcolor);
377
378
379 if (texture != null && texture.isLoaded)
380 for(int x = globalx; x < cx2; x += texture.width)
381 for(int y = globaly; y < cy2; y += texture.height)
382 buf.drawPicture(texture, x, y, cx1, cy1, cx2, cy2);
383
384 if (text != null && !text.equals("") && font != null)
385 if (font.rasterizeGlyphs(text, buf, strokecolor, globalx, globaly, cx1, cy1, cx2, cy2, null) == -1)
386 font.rasterizeGlyphs(text, buf, strokecolor, globalx, globaly, cx1, cy1, cx2, cy2, this);
387
388 for(Box b = getChild(0); b != null; b = b.nextSibling())
389 b.render(globalx, globaly, cx1, cy1, cx2, cy2, buf, null);
390 }
391
392
393
394
395 public int globalToLocalX(int x) { return parent == null ? x : parent.globalToLocalX(x - this.x); }
396 public int globalToLocalY(int y) { return parent == null ? y : parent.globalToLocalY(y - this.y); }
397 public int localToGlobalX(int x) { return parent == null ? x : parent.globalToLocalX(x + this.x); }
398 public int localToGlobalY(int y) { return parent == null ? y : parent.globalToLocalY(y + this.y); }
399
400 public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
401 if (nargs != 1 || !"indexof".equals(method)) return super.callMethod(method, a0, a1, a2, rest, nargs);
402 Box b = (Box)a0;
403 if (b.parent != this)
404 return (redirect == null || redirect == this) ?
405 N(-1) :
406 redirect.callMethod(method, a0, a1, a2, rest, nargs);
407 return N(b.getIndexInParent());
408 }
409
410 public Enumeration keys() { throw new Error("you cannot apply for..in to a " + this.getClass().getName()); }
411
412 protected boolean isTrappable(Object key, boolean isRead) {
413 if (key == null) return false;
414 else if (key instanceof String) {
415
416 String name = (String)key;
417 for (int i=0; i < props.length; i++) if (name.equals(props[i])) return false;
418 if (isRead) for (int i=0; i < events.length; i++) if (name.equals(events[i])) return false;
419 }
420
421 return true;
422 }
423
424 public Object get(Object name) throws JSExn {
425 if (name instanceof Number)
426 return redirect == null ? null : redirect == this ? getChild(toInt(name)) : redirect.get(name);
427
428
429 case "surface": return parent == null ? null : parent.getAndTriggerTraps("surface");
430 case "indexof": return METHOD;
431 case "text": return text;
432 case "path": throw new JSExn("cannot read from the path property");
433 case "fill": return colorToString(fillcolor);
434 case "strokecolor": return colorToString(strokecolor);
435 case "textcolor": return colorToString(strokecolor);
436 case "font": return font == null ? null : font.stream;
437 case "fontsize": return font == null ? N(10) : N(font.pointsize);
438 case "strokewidth": return N(strokewidth);
439 case "align": return alignToString();
440 case "thisbox": return this;
441 case "shrink": return B(test(HSHRINK) || test(VSHRINK));
442 case "hshrink": return B(test(HSHRINK));
443 case "vshrink": return B(test(VSHRINK));
444 case "aspect": return N(aspect);
445 case "x": return (parent == null || !test(VISIBLE)) ? N(0) : N(x);
446 case "y": return (parent == null || !test(VISIBLE)) ? N(0) : N(y);
447 case "cols": return test(FIXED) == COLS ? N(cols) : N(0);
448 case "rows": return test(FIXED) == ROWS ? N(rows) : N(0);
449 case "colspan": return N(colspan);
450 case "rowspan": return N(rowspan);
451 case "width": return N(width);
452 case "height": return N(height);
453 case "minwidth": return N(minwidth);
454 case "maxwidth": return N(maxwidth);
455 case "minheight": return N(minheight);
456 case "maxheight": return N(maxheight);
457 case "clip": return B(test(CLIP));
458 case "visible": return B(test(VISIBLE) && (parent == null || (parent.get("visible") == T)));
459 case "packed": return B(test(PACKED));
460 case "globalx": return N(localToGlobalX(0));
461 case "globaly": return N(localToGlobalY(0));
462 case "cursor": return test(CURSOR) ? boxToCursor.get(this) : null;
463 case "mouse":
464 if (getSurface() == null) return null;
465 if (getSurface()._mousex == Integer.MAX_VALUE)
466 throw new JSExn("you cannot read from the box.mouse property in background thread context");
467 return new Mouse();
468 case "numchildren": return redirect == null ? N(0) : redirect == this ? N(treeSize()) : redirect.get("numchildren");
469 case "redirect": return redirect == null ? null : redirect == this ? T : redirect.get("redirect");
470 case "Minimized": if (parent == null && getSurface() != null) return B(getSurface().minimized);
471 default: return super.get(name);
472 //#end
473 throw new Error("unreachable"); // unreachable
474 }
475
476 private class Mouse extends JS.Cloneable {
477 public Object get(Object key) {
478 //#switch(key)
479 case "x": return N(globalToLocalX(getSurface()._mousex));
480 case "y": return N(globalToLocalY(getSurface()._mousey));
481
482 // this might not get recomputed if we change mousex/mousey...
483 case "inside": return B(test(MOUSEINSIDE));
484 //#end
485 return null;
486 }
487 }
488
489 void setMaxWidth(Object value) {
490 do { CHECKSET_INT(maxwidth); MARK_RESIZE; } while(false);
491 if (parent == null && getSurface() != null) getSurface().pendingWidth = maxwidth;
492 }
493 void setMaxHeight(Object value) {
494 do { CHECKSET_INT(maxheight); MARK_RESIZE; } while(false);
495 if (parent == null && getSurface() != null) getSurface().pendingHeight = maxheight;
496 }
497
498 public void put(Object name, Object value) throws JSExn {
499 if (name instanceof Number) { put(toInt(name), value); return; }
500 //#switch(name)
501 case "text": CHECKSET_STRING(text); MARK_RESIZE; dirty();
502 case "strokecolor": value = N(stringToColor((String)value)); CHECKSET_INT(strokecolor); MARK_RESIZE; dirty();
503 case "textcolor": value = N(stringToColor((String)value)); CHECKSET_INT(strokecolor); MARK_RESIZE; dirty();
504 case "text": CHECKSET_STRING(text); MARK_RESIZE; dirty();
505 case "strokewidth": CHECKSET_SHORT(strokewidth); dirty();
506 case "shrink": put("hshrink", value); put("vshrink", value);
507 case "hshrink": CHECKSET_FLAG(HSHRINK); MARK_RESIZE;
508 case "vshrink": CHECKSET_FLAG(VSHRINK); MARK_RESIZE;
509 case "width": put("maxwidth", value); put("minwidth", value); MARK_RESIZE;
510 case "height": put("maxheight", value); put("minheight", value); MARK_RESIZE;
511 case "maxwidth": setMaxWidth(value);
512 case "minwidth": CHECKSET_INT(minwidth); MARK_RESIZE;
513 if (parent == null && getSurface() != null)
514 getSurface().setMinimumSize(minwidth, minheight, minwidth != maxwidth || minheight != maxheight);
515 case "maxheight": setMaxHeight(value);
516 case "minheight": CHECKSET_INT(minheight); MARK_RESIZE;
517 if (parent == null && getSurface() != null)
518 getSurface().setMinimumSize(minwidth, minheight, minwidth != maxwidth || minheight != maxheight);
519 case "colspan": CHECKSET_SHORT(colspan); MARK_REPACK_parent;
520 case "rowspan": CHECKSET_SHORT(rowspan); MARK_REPACK_parent;
521 case "rows": CHECKSET_SHORT(rows); if (rows==0){set(FIXED, COLS);if(cols==0)cols=1;} else set(FIXED, ROWS); MARK_REPACK;
522 case "cols": CHECKSET_SHORT(cols); if (cols==0){set(FIXED, ROWS);if(rows==0)rows=1;} else set(FIXED, COLS); MARK_REPACK;
523 case "clip": CHECKSET_FLAG(CLIP); if (parent == null) dirty(); else parent.dirty();
524 case "visible": CHECKSET_FLAG(VISIBLE); dirty(); MARK_RESIZE; dirty();
525 case "packed": CHECKSET_FLAG(PACKED); MARK_REPACK_parent;
526 case "aspect": CHECKSET_INT(aspect); dirty();
527 case "globalx": put("x", N(globalToLocalX(toInt(value))));
528 case "globaly": put("y", N(globalToLocalY(toInt(value))));
529 case "align": clear(ALIGNS); setAlign(value == null ? "center" : value); MARK_RESIZE;
530 case "cursor": setCursor(value);
531 case "fill": setFill(value);
532 case "mouse":
533 int mousex = toInt(((JS)value).get("x"));
534 int mousey = toInt(((JS)value).get("y"));
535 getSurface()._mousex = localToGlobalX(mousex);
536 getSurface()._mousey = localToGlobalY(mousey);
537 case "Minimized": if (parent == null && getSurface() != null) getSurface().minimized = toBoolean(value); // FEATURE
538 case "Maximized": if (parent == null && getSurface() != null) getSurface().maximized = toBoolean(value); // FEATURE
539 case "Close": if (parent == null && getSurface() != null) getSurface().dispose(true);
540 case "redirect": if (redirect == this) redirect = (Box)value; else Log.info(this, "redirect can only be set once");
541 case "font":
542 if(!(value instanceof Stream)) throw new JSExn("You can only put streams to the font property");
543 font = value == null ? null : Font.getFont((Stream)value, font == null ? 10 : font.pointsize);
544 MARK_RESIZE;
545 dirty();
546 case "fontsize": font = Font.getFont(font == null ? null : font.stream, toInt(value)); MARK_RESIZE; dirty();
547 case "x": if (parent==null && Surface.fromBox(this)!=null) { CHECKSET_INT(x); } else { if (test(PACKED) && parent != null) return; dirty(); CHECKSET_INT(x); dirty(); MARK_RESIZE; dirty(); }
548 case "y": if (parent==null && Surface.fromBox(this)!=null) { CHECKSET_INT(y); } else { if (test(PACKED) && parent != null) return; dirty(); CHECKSET_INT(y); dirty(); MARK_RESIZE; dirty(); }
549 case "titlebar":
550 if (getSurface() != null && value != null) getSurface().setTitleBarText(JS.toString(value));
551 super.put(name,value);
552
553 case "Press1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
554 case "Press2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
555 case "Press3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
556 case "Release1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
557 case "Release2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
558 case "Release3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
559 case "Click1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
560 case "Click2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
561 case "Click3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
562 case "DoubleClick1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
563 case "DoubleClick2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
564 case "DoubleClick3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
565 case "KeyPressed": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
566 case "KeyReleased": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
567 case "Move": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
568 case "Enter": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
569 case "Leave": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
570
571 case "_Move": propagateDownward(name, value, false);
572 case "_Press1": propagateDownward(name, value, false);
573 case "_Press2": propagateDownward(name, value, false);
574 case "_Press3": propagateDownward(name, value, false);
575 case "_Release1": propagateDownward(name, value, false);
576 case "_Release2": propagateDownward(name, value, false);
577 case "_Release3": propagateDownward(name, value, false);
578 case "_Click1": propagateDownward(name, value, false);
579 case "_Click2": propagateDownward(name, value, false);
580 case "_Click3": propagateDownward(name, value, false);
581 case "_DoubleClick1": propagateDownward(name, value, false);
582 case "_DoubleClick2": propagateDownward(name, value, false);
583 case "_DoubleClick3": propagateDownward(name, value, false);
584 case "_KeyPressed": propagateDownward(name, value, false);
585 case "_KeyReleased": propagateDownward(name, value, false);
586
587 case "PosChange": return;
588 case "SizeChange": return;
589 case "childadded": return;
590 case "childremoved": return;
591
592 case "thisbox": if (value == null) removeSelf();
593
594 default: super.put(name, value);
595 //#end
596 }
597
598 private String alignToString() {
599 switch(flags & ALIGNS) {
600 case (ALIGN_TOP | ALIGN_LEFT): return "topleft";
601 case (ALIGN_BOTTOM | ALIGN_LEFT): return "bottomleft";
602 case (ALIGN_TOP | ALIGN_RIGHT): return "topright";
603 case (ALIGN_BOTTOM | ALIGN_RIGHT): return "bottomright";
604 case ALIGN_TOP: return "top";
605 case ALIGN_BOTTOM: return "bottom";
606 case ALIGN_LEFT: return "left";
607 case ALIGN_RIGHT: return "right";
608 case 0: return "center";
609 default: throw new Error("invalid alignment flags: " + (flags & ALIGNS));
610 }
611 }
612
613 private void setAlign(Object value) {
614 //#switch(value)
615 case "center": clear(ALIGNS);
616 case "topleft": set(ALIGN_TOP | ALIGN_LEFT);
617 case "bottomleft": set(ALIGN_BOTTOM | ALIGN_LEFT);
618 case "topright": set(ALIGN_TOP | ALIGN_RIGHT);
619 case "bottomright": set(ALIGN_BOTTOM | ALIGN_RIGHT);
620 case "top": set(ALIGN_TOP);
621 case "bottom": set(ALIGN_BOTTOM);
622 case "left": set(ALIGN_LEFT);
623 case "right": set(ALIGN_RIGHT);
624 default: JS.log("invalid alignment \"" + value + "\"");
625 //#end
626 }
627
628 private void setCursor(Object value) {
629 if (value == null) { clear(CURSOR); boxToCursor.remove(this); return; }
630 if (value.equals(boxToCursor.get(this))) return;
631 set(CURSOR);
632 boxToCursor.put(this, value);
633 Surface surface = getSurface();
634 String tempcursor = surface.cursor;
635 // FIXME
636 //Move(surface.mousex, surface.mousey, surface.mousex, surface.mousey);
637 if (surface.cursor != tempcursor) surface.syncCursor();
638 }
639
640 private void setFill(Object value) throws JSExn {
641 if (value == null) {
642 // FIXME: Check this... does this make it transparent?
643 texture = null;
644 fillcolor = 0;
645 } else if (value instanceof String) {
646 // FIXME check double set
647 int newfillcolor = stringToColor((String)value);
648 if (newfillcolor == fillcolor) return;
649 fillcolor = newfillcolor;
650 } else if(value instanceof JS) {
651 texture = Picture.load((JS)value, this);
652 } else {
653 throw new JSExn("fill must be null, a String, or a stream, not a " + value.getClass());
654 }
655 dirty();
656 }
657
658 // FIXME: mouse move/release still needs to propagate to boxen in which the mouse was pressed and is still held down
659 /**
660 * Handles events which propagate down the box tree. If obscured
661 * is set, then we merely check for Enter/Leave.
662 */
663 private void propagateDownward(Object name_, Object value, boolean obscured) {
664
665 String name = (String)name_;
666 if (getSurface() == null) return;
667 int x = globalToLocalX(getSurface()._mousex);
668 int y = globalToLocalY(getSurface()._mousey);
669 boolean wasinside = test(MOUSEINSIDE);
670 boolean isinside = test(VISIBLE) && inside(x, y) && !obscured;
671 if (!wasinside && isinside) { set(MOUSEINSIDE); putAndTriggerTrapsAndCatchExceptions("Enter", T); }
672 if (wasinside && !isinside) { clear(MOUSEINSIDE); putAndTriggerTrapsAndCatchExceptions("Leave", T); }
673
674 boolean found = false;
675 if (wasinside || isinside)
676 for(Box child = getChild(treeSize() - 1); child != null; child = child.prevSibling()) {
677 boolean save_stop = child.test(STOP_UPWARD_PROPAGATION);
678 if (obscured || !child.inside(x - child.x, y - child.y)) {
679 child.propagateDownward(name, value, true);
680 } else try {
681 found = true;
682 child.clear(STOP_UPWARD_PROPAGATION);
683 child.putAndTriggerTrapsAndCatchExceptions(name, value);
684 } finally {
685 if (save_stop) child.set(STOP_UPWARD_PROPAGATION); else child.clear(STOP_UPWARD_PROPAGATION);
686 }
687 if (child.inside(x - child.x, y - child.y))
688 if (name.equals("_Move")) obscured = true;
689 else break;
690 }
691
692 if (!obscured && !found)
693 if (!name.equals("_Move") || wasinside) putAndTriggerTrapsAndCatchExceptions(name.substring(1), value);
694 }
695
696 private static int stringToColor(String s) {
697 // FIXME support three-char strings by doubling digits
698 if (s == null) return 0x00000000;
699 else if (SVG.colors.get(s) != null) return 0xFF000000 | toInt(SVG.colors.get(s));
700 else if (s.length() == 7 && s.charAt(0) == '#') try {
701 // FEATURE alpha
702 return 0xFF000000 |
703 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
704 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
705 Integer.parseInt(s.substring(5, 7), 16);
706 } catch (NumberFormatException e) {
707 Log.info(Box.class, "invalid color " + s);
708 return 0;
709 }
710 else return 0; // FEATURE: error?
711 }
712
713 private static String colorToString(int argb) {
714 if ((argb & 0xFF000000) == 0) return null;
715 String red = Integer.toHexString((argb & 0x00FF0000) >> 16);
716 String green = Integer.toHexString((argb & 0x0000FF00) >> 8);
717 String blue = Integer.toHexString(argb & 0x000000FF);
718 if (red.length() < 2) red = "0" + red;
719 if (blue.length() < 2) blue = "0" + blue;
720 if (green.length() < 2) green = "0" + green;
721 return "#" + red + green + blue;
722 }
723
724 /** figures out what box in this subtree of the Box owns the pixel at x,y relitave to the Surface */
725 public static Box whoIs(Box cur, int x, int y) {
726
727 if (cur.parent != null) throw new Error("whoIs may only be invoked on the root box of a surface");
728 int globalx = 0;
729 int globaly = 0;
730
731 // WARNING: this method is called from the event-queueing thread -- it may run concurrently with
732 // ANY part of XWT, and is UNSYNCHRONIZED for performance reasons. BE CAREFUL HERE.
733
734 if (!cur.test(VISIBLE)) return null;
735 if (!cur.inside(x - globalx, y - globaly)) return cur.parent == null ? cur : null;
736 OUTER: while(true) {
737 for(int i=cur.treeSize() - 1; i>=0; i--) {
738 Box child = cur.getChild(i);
739 if (child == null) continue; // since this method is unsynchronized, we have to double-check
740 globalx += child.x;
741 globaly += child.y;
742 if (child.test(VISIBLE) && child.inside(x - globalx, y - globaly)) { cur = child; continue OUTER; }
743 globalx -= child.x;
744 globaly -= child.y;
745 }
746 break;
747 }
748 return cur;
749 }
750
751
752 // Trivial Helper Methods (should be inlined) /////////////////////////////////////////
753
754 static short min(short a, short b) { if (a<b) return a; else return b; }
755 static int min(int a, int b) { if (a<b) return a; else return b; }
756 static float min(float a, float b) { if (a<b) return a; else return b; }
757
758 static short max(short a, short b) { if (a>b) return a; else return b; }
759 static int max(int a, int b) { if (a>b) return a; else return b; }
760 static float max(float a, float b) { if (a>b) return a; else return b; }
761
762 static 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; }
763 static 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; }
764 static int bound(int a, int b, int c) { if (c < b) return c; if (a > b) return a; return b; }
765 final boolean inside(int x, int y) { return test(VISIBLE) && x >= 0 && y >= 0 && x < width && y < height; }
766
767 void set(int mask) { flags |= mask; }
768 void set(int mask, boolean setclear) { if (setclear) set(mask); else clear(mask); }
769 void clear(int mask) { flags &= ~mask; }
770 boolean test(int mask) { return ((flags & mask) == mask); }
771
772
773 // Tree Handling //////////////////////////////////////////////////////////////////////
774
775 public final int getIndexInParent() { return parent == null ? 0 : parent.indexNode(this); }
776 public final Box nextSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) + 1); }
777 public final Box prevSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) - 1); }
778 public final Box getChild(int i) {
779 if (i < 0) return null;
780 if (i >= treeSize()) return null;
781 return (Box)getNode(i);
782 }
783
784 // Tree Manipulation /////////////////////////////////////////////////////////////////////
785
786 void removeSelf() {
787 if (parent != null) { parent.removeChild(parent.indexNode(this)); return; }
788 Surface surface = Surface.fromBox(this);
789 if (surface != null) surface.dispose(true);
790 }
791
792 /** remove the i^th child */
793 public void removeChild(int i) {
794 Box b = getChild(i);
795 MARK_REFLOW_b;
796 b.dirty();
797 b.clear(MOUSEINSIDE);
798 deleteNode(i);
799 b.parent = null;
800 MARK_REFLOW;
801 putAndTriggerTrapsAndCatchExceptions("childremoved", b);
802 }
803
804 public void put(int i, Object value) throws JSExn {
805 if (i < 0) return;
806
807 if (value != null && !(value instanceof Box)) {
808 if (Log.on) JS.warn("attempt to set a numerical property on a box to a non-box");
809 return;
810 }
811
812 if (redirect == null) {
813 if (value == null) putAndTriggerTrapsAndCatchExceptions("childremoved", getChild(i));
814 else JS.warn("attempt to add/remove children to/from a node with a null redirect");
815
816 } else if (redirect != this) {
817 if (value != null) putAndTriggerTrapsAndCatchExceptions("childadded", value);
818 redirect.put(i, value);
819 if (value == null) {
820 Box b = (Box)redirect.get(new Integer(i));
821 if (b != null) putAndTriggerTrapsAndCatchExceptions("childremoved", b);
822 }
823
824 } else if (value == null) {
825 if (i < 0 || i > treeSize()) return;
826 Box b = getChild(i);
827 removeChild(i);
828 putAndTriggerTrapsAndCatchExceptions("childremoved", b);
829
830 } else {
831 Box b = (Box)value;
832
833 // check if box being moved is currently target of a redirect
834 for(Box cur = b.parent; cur != null; cur = cur.parent)
835 if (cur.redirect == b) {
836 if (Log.on) JS.warn("attempt to move a box that is the target of a redirect");
837 return;
838 }
839
840 // check for recursive ancestor violation
841 for(Box cur = this; cur != null; cur = cur.parent)
842 if (cur == b) {
843 if (Log.on) JS.warn("attempt to make a node a parent of its own ancestor");
844 if (Log.on) Log.info(this, "box == " + this + " ancestor == " + b);
845 return;
846 }
847
848 if (b.parent != null) b.parent.removeChild(b.parent.indexNode(b));
849 insertNode(i, b);
850 b.parent = this;
851
852 // need both of these in case child was already uncalc'ed
853 MARK_REFLOW_b;
854 MARK_REFLOW;
855
856 b.dirty();
857 putAndTriggerTrapsAndCatchExceptions("childadded", b);
858 }
859 }
860
861 void putAndTriggerTrapsAndCatchExceptions(Object name, Object val) {
862 try {
863 putAndTriggerTraps(name, val);
864 } catch (JSExn e) {
865 JS.log("caught js exception while putting to trap \""+name+"\"");
866 JS.log(e);
867 } catch (Exception e) {
868 JS.log("caught exception while putting to trap \""+name+"\"");
869 JS.log(e);
870 }
871 }
872
873 }
874
875
876
877
878
879
880 /*
881 offset_x = 0;
882 if (path != null) {
883 if (rpath == null) rpath = path.realize(transform == null ? VectorGraphics.Affine.identity() : transform);
884 if ((flags & HSHRINK) != 0) contentwidth = max(contentwidth, rpath.boundingBoxWidth());
885 if ((flags & VSHRINK) != 0) contentheight = max(contentheight, rpath.boundingBoxHeight());
886 // FIXME: separate offset_x needed for the path
887 }
888 // #repeat x1/y1 x2/y2 x3/y3 x4/y4 contentwidth/contentheight left/top right/bottom
889 int x1 = transform == null ? 0 : (int)transform.multiply_px(0, 0);
890 int x2 = transform == null ? 0 : (int)transform.multiply_px(contentwidth, 0);
891 int x3 = transform == null ? contentwidth : (int)transform.multiply_px(contentwidth, contentheight);
892 int x4 = transform == null ? contentwidth : (int)transform.multiply_px(0, contentheight);
893 int left = min(min(x1, x2), min(x3, x4));
894 int right = max(max(x1, x2), max(x3, x4));
895 contentwidth = max(contentwidth, right - left);
896 offset_x = -1 * left;
897 // #end
898 */
899
900
901 /*
902 if (path != null) {
903 if (rtransform == null) rpath = null;
904 else if (!rtransform.equalsIgnoringTranslation(a)) rpath = null;
905 else {
906 rpath.translate((int)(a.e - rtransform.e), (int)(a.f - rtransform.f));
907 rtransform = a.copy();
908 }
909 if (rpath == null) rpath = path.realize((rtransform = a) == null ? VectorGraphics.Affine.identity() : a);
910 if ((strokecolor & 0xff000000) != 0) rpath.stroke(buf, 1, strokecolor);
911 if ((fillcolor & 0xff000000) != 0) rpath.fill(buf, new VectorGraphics.SingleColorPaint(fillcolor));
912 }
913 */
914
915
916 /*
917 VectorGraphics.Affine a2 = VectorGraphics.Affine.translate(b.x, b.y);
918 if (transform != null) a2.multiply(transform);
919 a2.multiply(VectorGraphics.Affine.translate(offset_x, offset_y));
920 a2.multiply(a);
921 */
922