1 // Copyright 2000-2005 the Contributors, as shown in the revision logs.
2 // Licensed under the GNU General Public License version 2 ("the License").
3 // You may not use this file except in compliance with the License.
8 // FIXME: are traps on x/y meaningful?
9 // FIXME: if we trap on cols, then set rows to 0 (forcing cols to 1), does the cols trap get triggered?
10 // FIXME: if we change min{width/height}, thereby forcing a change to max{min/height}, does a trap on those get triggered?
11 // FIXME: trap on numchildren? replaces ChildChanged?
12 // FIXME: trap on visible, trigger when parent visibility changes
14 // FIXME: ax/ay nonsense
15 // FIXME: mouse move/release still needs to propagate to boxen in which the mouse was pressed and is still held down
17 // FEATURE: mark to reflow starting with a certain child
18 // FEATURE: reintroduce surface.abort
22 import org.ibex.util.*;
23 import org.ibex.graphics.*;
27 * Encapsulates the data for a single Ibex box as well as all layout
31 * <p>The rendering process consists of four phases; each requires
32 * one DFS pass over the tree</p>
33 * <ol><li> <b>pack()</b>: each box sets its childrens' row/col
34 * <ol><li> <b>constrain()</b>: contentwidth is computed
35 * <li> <b>resize()</b>: width/height and x/y positions are set
36 * <li> <b>render()</b>: children draw their content onto the PixelBuffer.
39 * The first three passes together are called the <i>reflow</i>
40 * phase. Reflowing is done in a seperate pass since SizeChanges
41 * trigger a Surface.abort; if rendering were done in the same pass,
42 * rendering work done prior to the Surface.abort would be wasted.
44 public final class Box extends JS.Obj implements Callable {
46 private static final JS.Method METHOD = new JS.Method();
48 // Macros //////////////////////////////////////////////////////////////////////
50 final void REPLACE() { for(Box b2 = this; b2 != null && !b2.test(REPLACE); b2 = b2.parent) b2.set(REPLACE); }
51 final void RECONSTRAIN() { for(Box b2 = this; b2 != null && !b2.test(RECONSTRAIN); b2 = b2.parent) b2.set(RECONSTRAIN); }
52 final void REPACK() { for(Box b2 = this; b2 != null && !b2.test(REPACK); b2 = b2.parent) b2.set(REPACK); }
54 //#define CHECKSET_SHORT(prop) short nu = (short)JSU.toInt(value); if (nu == prop) break; prop = nu;
55 //#define CHECKSET_INT(prop) int nu = JSU.toInt(value); if (nu == prop) break; prop = nu;
56 //#define CHECKSET_FLAG(flag) boolean nu = JSU.toBoolean(value); if (nu == test(flag)) break; if (nu) set(flag); else clear(flag);
57 //#define CHECKSET_BOOLEAJSU.N(prop) boolean nu = JSU.toBoolean(value); if (nu == prop) break; prop = nu;
58 //#define CHECKSET_STRING(prop) if ((value==null&&prop==null)||(value!=null&&JSU.toString(value).equals(prop))) break; prop=JSU.toString(value);
61 static Basket.Map boxToCursor = new Basket.Hash(500, 3);
63 static final Font DEFAULT_FONT;
65 try { DEFAULT_FONT = Font.getFont((JS)Main.builtin.get(JSU.S("fonts/vera/Vera.ttf")), 10); }
66 catch(JSExn e) { throw new Error("Error loading default font: " + e); }
70 // Flags //////////////////////////////////////////////////////////////////////
72 static final int MOUSEINSIDE = 0x00000001;
73 static final int VISIBLE = 0x00000002;
74 static final int PACKED = 0x00000004;
75 public static final int HSHRINK = 0x00000008;
76 public static final int VSHRINK = 0x00000010;
77 static final int BLACK = 0x00000020; // for red-black code
79 static final int FIXED = 0x00000040;
80 static final boolean ROWS = true;
81 static final boolean COLS = false;
83 static final int ISROOT = 0x00000080;
84 static final int REPACK = 0x00000100;
85 static final int RECONSTRAIN = 0x00000200;
86 static final int REPLACE = 0x00000400;
88 static final int ALIGN_TOP = 0x00001000;
89 static final int ALIGN_BOTTOM = 0x00002000;
90 static final int ALIGN_LEFT = 0x00004000;
91 static final int ALIGN_RIGHT = 0x00008000;
92 static final int ALIGNS = 0x0000f000;
93 static final int CURSOR = 0x00010000; // if true, this box has a cursor in the cursor hash; FEATURE: GC issues?
94 static final int CLIP = 0x00020000;
95 static final int STOP_UPWARD_PROPAGATION = 0x00040000;
96 static final int MOVED = 0x00080000;
99 // Instance Data //////////////////////////////////////////////////////////////////////
103 int flags = VISIBLE | PACKED | REPACK | RECONSTRAIN | REPLACE | FIXED | STOP_UPWARD_PROPAGATION | CLIP | MOVED;
105 private BalancedTree bt;
107 private String text = null;
108 private Font font = DEFAULT_FONT;
109 private Picture texture = null;
110 private short strokewidth = 1;
111 public int fillcolor = 0x00000000;
112 private int strokecolor = 0xFF000000;
114 private int aspect = 0;
116 // specified directly by user
117 public int minwidth = 0;
118 public int maxwidth = Integer.MAX_VALUE;
119 public int minheight = 0;
120 public int maxheight = Integer.MAX_VALUE;
121 public int minwidth() { return minwidth; }
122 public int minheight() { return minheight; }
123 public int maxwidth() { return maxwidth; }
124 public int maxheight() { return maxheight; }
125 private short rows = 1;
126 private short cols = 0;
127 private short rowspan = 1;
128 private short colspan = 1;
130 // computed during reflow
131 private short row = 0;
132 private short col = 0;
135 public int ax = 0; // FEATURE: roll these into x/y; requires lots of changes
136 public int ay = 0; // FEATURE: roll these into x/y; requires lots of changes; perhaps y()?
137 public int width = 0;
138 public int height = 0;
139 public int contentwidth = 0; // == max(minwidth, textwidth, sum(child.contentwidth))
140 public int contentheight = 0;
142 private Path path = null;
144 private Affine transform = null;
145 private VectorGraphics.RasterPath rpath = null;
146 private Affine rtransform = null;
149 // Instance Methods /////////////////////////////////////////////////////////////////////
151 public final int fontSize() { return font == null ? DEFAULT_FONT.pointsize : font.pointsize; }
153 /** invoked when a resource needed to render ourselves finishes loading */
154 public Object run(Object o) throws JSExn {
155 if (texture == null) { Log.warn(Box.class, "perform() called with null texture"); return null; }
156 if (texture.isLoaded) {
157 setWidth(max(texture.width, minwidth), maxwidth);
158 setHeight(max(texture.height, minheight), maxheight);
160 else { JS res = texture.stream; texture = null; throw new JSExn("image not found: "+res.unclone()); }
164 // FEATURE: use cx2/cy2 format
165 /** Adds the intersection of (x,y,w,h) and the node's current actual geometry to the Surface's dirty list */
166 public void dirty() { dirty(0, 0, width, height); }
167 public void dirty(int x, int y, int w, int h) {
168 for(Box cur = this; cur != null; cur = cur.parent) {
169 // x and y have a different meaning on the root box
170 if (cur.parent != null && cur.test(CLIP)) {
171 w = min(x + w, cur.width) - max(x, 0);
172 h = min(y + h, cur.height) - max(y, 0);
176 if (w <= 0 || h <= 0) return;
177 if (cur.parent == null && cur.getSurface() != null) cur.getSurface().dirty(x, y, w, h);
184 // Reflow ////////////////////////////////////////////////////////////////////////////////////////
186 /** should only be invoked on the root box */
187 public void reflow() {
190 test(HSHRINK) ? contentwidth : maxwidth,
191 test(VSHRINK) ? contentheight : maxheight);
195 private static Box[] frontier = new Box[65535];
196 /** pack the boxes into rows and columns, compute contentwidth */
198 if (!test(REPACK)) { constrain(); return; }
199 boolean haskid = false;
200 for(Box child = getChild(0); child != null; child = child.nextSibling()) { haskid = true; child.pack(); }
201 if (!haskid) { clear(REPACK); constrain(); return; }
202 int frontier_size = 0;
203 //#repeat COLS/ROWS rows/cols cols/rows col/row row/col colspan/rowspan rowspan/colspan \
204 // contentheight/contentwidth contentwidth/contentheight
205 if (test(FIXED) == COLS) {
207 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
208 if (!child.test(PACKED) || !child.test(VISIBLE)) continue;
209 if (cols == 1) { child.row = rows; rows += child.rowspan; child.col = 0; continue; }
210 child.col = (short)(frontier_size <= 0 ? 0 : (frontier[frontier_size-1].col + frontier[frontier_size-1].colspan));
211 child.row = (short)(frontier_size <= 0 ? 0 : frontier[frontier_size-1].row);
212 if (child.col + min(cols,child.colspan) > cols) { child.col = 0; child.row++; }
213 for(int i=0; i<frontier_size; i++)
214 if (frontier[i].row + frontier[i].rowspan <= child.row) {
215 frontier[i--] = frontier[--frontier_size]; frontier[frontier_size] = null;
216 } else if (frontier[i].col<child.col+min(cols,child.colspan)&&frontier[i].col+frontier[i].colspan>child.col) {
217 child.col = (short)(frontier[i].col + frontier[i].colspan);
218 if (child.col + min(cols,child.colspan) > cols) {
219 child.row = (short)(frontier[i].row + frontier[i].rowspan);
220 for(i--; i>0; i--) child.row = (short)min(row, frontier[i].row + frontier[i].rowspan);
221 child.col = (short)0;
225 frontier[frontier_size++] = child;
227 for(int i=0; i<frontier_size; i++){ rows=(short)max(rows, frontier[i].row + frontier[i].rowspan); frontier[i] = null; }
231 set(RECONSTRAIN); // FIXME: be smarter / more incremental
235 public void constrain() {
236 if (!test(RECONSTRAIN)) return;
238 //#repeat contentwidth/contentheight contentheight/contentwidth minwidth/minheight row/col col/row \
239 // textwidth/textheight maxwidth/maxheight cols/rows rows/cols colspan/rowspan rowspan/colspan
240 contentwidth = bound(minwidth,
241 max(contentwidth, font == null || text == null ? 0 : font.textwidth(text)),
244 set(REPLACE); // FIXME: be smarter / more incremental
247 private final static JS SIZECHANGE = JSU.S("SizeChange");
249 void resize(int x, int y, int width, int height) {
250 if (x == this.x && y == this.y && width == this.width && height == this.height) return;
251 boolean sizechange = (this.width != width || this.height != height);
252 try { sizechange = sizechange && getTrap(SIZECHANGE) != null; } catch (JSExn e) {}
253 int thisx = parent == null ? 0 : this.x;
254 int thisy = parent == null ? 0 : this.y;
255 Box who = (parent == null ? this : parent);
256 if (this.x != x || this.y != y) set(MOVED);
257 if (texture == null && (text == null || text.equals("")) && !test(MOVED)) {
258 if ((fillcolor & 0xff000000) != 0 || parent == null) {
259 who.dirty(thisx+min(this.width,width), thisy, Math.abs(width-this.width), max(this.height, height));
260 who.dirty(thisx, thisy+min(this.height,height), max(this.width, width), Math.abs(height-this.height));
262 this.width = width; this.height = height; this.x = x; this.y = y;
264 who.dirty(thisx, thisy, this.width, this.height);
265 this.width = width; this.height = height; this.x = x; this.y = y;
268 if (sizechange) putAndTriggerTrapsAndCatchExceptions(SIZECHANGE, JSU.T);
271 private float targetColumnSize = (float)0.0;
272 private float targetRowSize = (float)0.0;
273 private static float[] sizes = new float[65535];
274 private static float[] sizes_v = new float[65535];
275 private static int[] regions = new int[65535];
276 private static int[] regions_v = new int[65535];
277 private static int numregions = 0;
278 private static int numregions_v = 0;
280 void solve(boolean findMinimum) {
281 int numkids = 0; for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling()) numkids++;
282 //#repeat col/row colspan/rowspan contentwidth/contentheight width/height HSHRINK/VSHRINK numregions/numregions_v \
283 // maxwidth/maxheight cols/rows minwidth/minheight regions/regions_v targetColumnSize/targetRowSize sizes/sizes_v \
286 if (findMinimum) contentwidth = 0;
287 else targetColumnSize = 0;
288 } else if (cols == 1) {
291 for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling())
292 contentwidth = max(contentwidth, c.contentwidth);
294 targetColumnSize = width;
296 } else if (cols > 1) do {
298 // FIXME: cache these?
301 for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling()) {
302 regions[numregions++] = c.col;
303 regions[numregions++] = min(cols, c.col+c.colspan);
305 Vec.sortInts(regions, 0, numregions);
307 int newnumregions = numregions;
308 for(int i=1; i<numregions; i++) {
309 if (regions[j] != regions[i]) j++;
310 else newnumregions--;
311 regions[j] = regions[i];
313 numregions = newnumregions;
314 if (regions[numregions-1] == cols) numregions--;
315 else regions[numregions] = cols;
317 int target = findMinimum ? 0 : Math.max(width, contentwidth);
318 // priority 0: (inviolable) honor minwidths
319 // priority 1: sum of columns no greater than parent
320 // priority 2: honor maxwidths
321 // priority 3: equalize columns
322 float targetColumnSize = target == 0 ? 0 : this.targetColumnSize;
323 float last_columnsize = 0;
324 float last_total = 0;
326 boolean first = true;
329 for(int r=0; r<numregions; r++) total += (sizes[r] = (float)(targetColumnSize * (regions[r+1]-regions[r])));
331 for(Box child = firstPackedChild(); child != null; child = child.nextPackedSibling())
332 for(int r=(child.col==0?0:minregion); r<numregions; r++) {
333 if (regions[r+1] < child.col) continue;
334 if (regions[r] >= min(child.col+child.colspan,cols)) { minregion = r; break; }
336 int child_maxwidth = child.test(HSHRINK)?child.contentwidth:child.maxwidth;
337 if (sizes[r] <= (float)(targetColumnSize*(regions[r+1]-regions[r])))
338 if ((child.colspan * targetColumnSize) > (child_maxwidth + (float)0.5))
339 sizes[r] = (float)Math.min(sizes[r], (regions[r+1]-regions[r])*(child_maxwidth/child.colspan));
340 if ((child.colspan * targetColumnSize) < (child.contentwidth - (float)0.5))
341 sizes[r] = (float)Math.max(sizes[r], (regions[r+1]-regions[r])*(child.contentwidth/child.colspan));
344 float save = targetColumnSize;
345 if (Math.abs(total - target) <= (float)1.0) break;
347 if (Math.abs(total - last_total) <= (float)1.0) break;
349 last_columnsize = ((total - target) / (float)cols) + targetColumnSize;
351 if (total < target) targetColumnSize += Math.abs((last_columnsize - targetColumnSize) / (float)1.1);
352 else if (total > target) targetColumnSize -= Math.abs((last_columnsize - targetColumnSize) / (float)1.1);
353 last_columnsize = save;
357 if (findMinimum) contentwidth = Math.round(total);
358 else this.targetColumnSize = targetColumnSize;
365 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
366 if (!child.test(VISIBLE)) continue;
367 if (!child.test(REPLACE)) continue;
368 int child_width, child_height, child_x, child_y;
369 if (!child.test(PACKED)) {
370 child_width = child.test(HSHRINK) ? child.contentwidth : min(child.maxwidth, width - Math.abs(child.ax));
371 child_height = child.test(VSHRINK) ? child.contentheight : min(child.maxheight, height - Math.abs(child.ay));
372 child_width = max(child.minwidth, child_width);
373 child_height = max(child.minheight, child_height);
374 int gap_x = width - child_width;
375 int gap_y = height - child_height;
376 child_x = child.ax + (child.test(ALIGN_RIGHT) ? gap_x : !child.test(ALIGN_LEFT) ? gap_x / 2 : 0);
377 child_y = child.ay + (child.test(ALIGN_BOTTOM) ? gap_y : !child.test(ALIGN_TOP) ? gap_y / 2 : 0);
380 //#repeat col/row colspan/rowspan contentwidth/contentheight width/height colMaxWidth/rowMaxHeight \
381 // child_x/child_y x/y HSHRINK/VSHRINK maxwidth/maxheight cols/rows minwidth/minheight x_slack/y_slack \
382 // child_width/child_height ALIGN_RIGHT/ALIGN_BOTTOM ALIGN_LEFT/ALIGN_TOP lp_h/lp \
383 // numregions/numregions_v regions/regions_v targetColumnSize/targetRowSize sizes/sizes_v
389 for(int r=0; r<numregions; r++) {
390 if (regions[r] < child.col) child_x += Math.round(sizes[r]);
391 else if (regions[r] < child.col+child.colspan) child_width += Math.round(sizes[r]);
394 diff = (child_width - (child.test(HSHRINK) ? child.contentwidth : min(child_width, child.maxwidth)));
395 child_x += (child.test(ALIGN_RIGHT) ? diff : child.test(ALIGN_LEFT) ? 0 : diff / 2);
399 if (test(MOVED)) child.set(MOVED);
400 child.resize(child_x, child_y, child_width, child_height);
404 for(Box child = getChild(0); child != null; child = child.nextSibling())
405 if (child.test(VISIBLE) && child.treeSize() > 0)
411 // Rendering Pipeline /////////////////////////////////////////////////////////////////////
413 /** Renders self and children within the specified region. All rendering operations are clipped to xIn,yIn,wIn,hIn */
414 public void render(int parentx, int parenty, int cx1, int cy1, int cx2, int cy2, PixelBuffer buf, Affine a) {
415 if (!test(VISIBLE)) return;
416 int globalx = parentx + (parent == null ? 0 : x);
417 int globaly = parenty + (parent == null ? 0 : y);
419 // intersect the x,y,w,h rendering window with ourselves; quit if it's empty
421 cx1 = max(cx1, globalx);
422 cy1 = max(cy1, globaly);
423 cx2 = min(cx2, globalx + width);
424 cy2 = min(cy2, globaly + height);
425 if (cx2 <= cx1 || cy2 <= cy1) return;
428 if ((fillcolor & 0xFF000000) != 0x00000000 || parent == null)
429 buf.fillTrapezoid(cx1, cx2, cy1, cx1, cx2, cy2, (fillcolor & 0xFF000000) == 0 ? 0xffffffff : fillcolor);
431 if (texture != null && texture.isLoaded)
432 for(int x = globalx; x < cx2; x += texture.width)
433 for(int y = globaly; y < cy2; y += texture.height)
434 buf.drawPicture(texture, x, y, cx1, cy1, cx2, cy2);
436 if (text != null && !text.equals("") && font != null) {
437 int gap_x = width - font.textwidth(text);
438 int gap_y = height - font.textheight(text);
439 int text_x = globalx + (test(ALIGN_RIGHT) ? gap_x : !test(ALIGN_LEFT) ? gap_x/2 : 0);
440 int text_y = globaly + (test(ALIGN_BOTTOM) ? gap_y : !test(ALIGN_TOP) ? gap_y/2 : 0);
441 font.rasterizeGlyphs(text, buf, strokecolor, text_x, text_y, cx1, cy1, cx2, cy2);
444 if (path != null) new Polygon(path, Affine.translate(globalx, globaly)).stroke(buf, strokecolor);
446 for(Box b = getChild(0); b != null; b = b.nextSibling())
447 b.render(globalx, globaly, cx1, cy1, cx2, cy2, buf, null);
451 // Methods to implement org.ibex.js.JS //////////////////////////////////////
454 public JS call(JS method, JS[] args) throws JSExn {
455 switch (args.length) {
457 //#switch(JSU.toString(method))
459 Box b = (Box)args[0];
460 if (b.parent != this)
461 return (redirect == null || redirect == this) ?
462 JSU.N(-1) : redirect.call(method, args);
463 return JSU.N(b.getIndexInParent());
466 Box b = (Box)args[0];
467 JS ret = new JS.Obj();
468 ret.put(JSU.S("x"), JSU.N(b.localToGlobalX(0) - localToGlobalX(0)));
469 ret.put(JSU.S("y"), JSU.N(b.localToGlobalY(0) - localToGlobalY(0)));
475 return super.call(method, args);
478 public JS get(JS name) throws JSExn {
480 return redirect == null ? null : redirect == this ? getChild(JSU.toInt(name)) : redirect.get(name);
482 //#switch(JSU.toString(name))
483 case "surface": return parent == null ? null : parent.getAndTriggerTraps(name);
484 case "indexof": return METHOD;
485 case "distanceto": return METHOD;
486 case "text": return JSU.S(text);
488 if (path != null) return JSU.S(path.toString());
489 if (text == null) return null;
490 if (font == null) return null;
492 for(int i=0; i<text.length(); i++) ret += font.glyphs[text.charAt(i)].path;
495 case "fill": return JSU.S(Color.colorToString(fillcolor));
496 case "strokecolor": return JSU.S(Color.colorToString(strokecolor));
497 case "textcolor": return JSU.S(Color.colorToString(strokecolor));
498 case "font": return font == null ? null : font.stream;
499 case "fontsize": return font == null ? JSU.N(10) : JSU.N(font.pointsize);
500 case "strokewidth": return JSU.N(strokewidth);
501 case "align": return JSU.S(alignToString());
502 case "thisbox": return this;
503 case "shrink": return JSU.B(test(HSHRINK) || test(VSHRINK));
504 case "hshrink": return JSU.B(test(HSHRINK));
505 case "vshrink": return JSU.B(test(VSHRINK));
506 case "aspect": return JSU.N(aspect);
507 case "x": return (parent == null || !test(VISIBLE)) ? JSU.N(0) : test(PACKED) ? JSU.N(x) : JSU.N(ax);
508 case "y": return (parent == null || !test(VISIBLE)) ? JSU.N(0) : test(PACKED) ? JSU.N(y) : JSU.N(ay);
509 case "cols": return test(FIXED) == COLS ? JSU.N(cols) : JSU.N(0);
510 case "rows": return test(FIXED) == ROWS ? JSU.N(rows) : JSU.N(0);
511 case "colspan": return JSU.N(colspan);
512 case "rowspan": return JSU.N(rowspan);
513 case "width": getRoot().reflow(); return JSU.N(width);
514 case "height": getRoot().reflow(); return JSU.N(height);
515 case "minwidth": return JSU.N(minwidth);
516 case "maxwidth": return JSU.N(maxwidth);
517 case "minheight": return JSU.N(minheight);
518 case "maxheight": return JSU.N(maxheight);
519 case "clip": return JSU.B(test(CLIP));
520 case "visible": return JSU.B(test(VISIBLE) && (parent == null || (parent.get(JSU.S("visible")) == JSU.T)));
521 case "packed": return JSU.B(test(PACKED));
522 case "globalx": return JSU.N(localToGlobalX(0));
523 case "globaly": return JSU.N(localToGlobalY(0));
524 case "cursor": return test(CURSOR) ? JSU.S((String)boxToCursor.get(this)) : null;
526 if (getSurface() == null) return null;
527 if (getSurface()._mousex == Integer.MAX_VALUE)
528 throw new JSExn("you cannot read from the box.mouse property in background thread context");
530 case "numchildren": return redirect == null ? JSU.N(0) : redirect == this ? JSU.N(treeSize()) : redirect.get(JSU.S("numchildren"));
531 case "redirect": return redirect == null ? null : redirect == this ? JSU.T : redirect.get(JSU.S("redirect"));
532 case "Minimized": if (parent == null && getSurface() != null) return JSU.B(getSurface().minimized);
533 default: return super.get(name);
535 throw new Error("unreachable"); // unreachable
538 private class Mouse extends JS.Immutable implements JS.Cloneable {
539 public JS get(JS key) throws JSExn {
540 //#switch(JSU.toString(key))
541 case "x": return JSU.N(globalToLocalX(getSurface()._mousex));
542 case "y": return JSU.N(globalToLocalY(getSurface()._mousey));
544 // this might not get recomputed if we change mousex/mousey...
545 case "inside": return JSU.B(test(MOUSEINSIDE));
547 return super.get(key);
551 //#repeat setWidth/setHeight minwidth/minheight maxwidth/maxheight pendingWidth/pendingHeight
552 public void setWidth(int min, int max) {
553 // FIXME: deal with conflicting min/max
554 if (this.minwidth == min && this.maxwidth == max) return;
558 if (parent != null || getSurface() == null) return;
559 getSurface().pendingWidth = maxwidth;
561 // FIXME: the repeat doesn't work right here
562 getSurface().setMinimumSize(minwidth, minheight, minwidth != maxwidth || minheight != maxheight);
566 public void put(JS name, JS value) throws JSExn {
567 if (JSU.isInt(name)) { put(JSU.toInt(name), value); return; }
568 //#switch(JSU.toString(name))
569 case "thisbox": if (value == null) removeSelf();
570 case "text": { String s = value == null ? "" : JSU.toString(value); CHECKSET_STRING(text); RECONSTRAIN(); dirty(); }
571 case "strokecolor": value = JSU.N(Color.stringToColor(JSU.toString(value))); CHECKSET_INT(strokecolor); dirty();
572 case "textcolor": value = JSU.N(Color.stringToColor(JSU.toString(value))); CHECKSET_INT(strokecolor); dirty();
573 case "strokewidth": CHECKSET_SHORT(strokewidth); dirty();
574 case "shrink": CHECKSET_FLAG(HSHRINK | VSHRINK); RECONSTRAIN();
575 case "hshrink": CHECKSET_FLAG(HSHRINK); RECONSTRAIN();
576 case "vshrink": CHECKSET_FLAG(VSHRINK); RECONSTRAIN();
577 case "path": path = new Path(JSU.toString(value)); RECONSTRAIN(); dirty();
578 case "width": setWidth(JSU.toInt(value), JSU.toInt(value));
579 case "height": setHeight(JSU.toInt(value), JSU.toInt(value));
580 case "maxwidth": setWidth(minwidth, JSU.toInt(value));
581 case "minwidth": setWidth(JSU.toInt(value), maxwidth);
582 case "maxheight": setHeight(minheight, JSU.toInt(value));
583 case "minheight": setHeight(JSU.toInt(value), maxheight);
584 case "colspan": if (JSU.toInt(value) > 0) { CHECKSET_SHORT(colspan); if (parent != null) parent.REPACK(); }
585 case "rowspan": if (JSU.toInt(value) > 0) { CHECKSET_SHORT(rowspan); if (parent != null) parent.REPACK(); }
586 case "visible": CHECKSET_FLAG(VISIBLE); RECONSTRAIN(); dirty();
587 case "packed": CHECKSET_FLAG(PACKED); if (parent != null) { parent.REPACK(); } else { REPACK(); }
588 case "align": clear(ALIGNS); setAlign(value); REPLACE();
589 case "cursor": setCursor(JSU.toString(value));
590 case "fill": setFill(value);
591 case "clip": CHECKSET_FLAG(CLIP); if (parent == null) dirty(); else parent.dirty();
592 case "rows": CHECKSET_SHORT(rows); if (rows==0){set(FIXED, COLS);if(cols==0)cols=1;} else set(FIXED, ROWS); REPACK();
593 case "cols": CHECKSET_SHORT(cols); if (cols==0){set(FIXED, ROWS);if(rows==0)rows=1;} else set(FIXED, COLS); REPACK();
597 int mousex = JSU.toInt(((JS)value).get(JSU.S("x")));
598 int mousey = JSU.toInt(((JS)value).get(JSU.S("y")));
599 getSurface()._mousex = localToGlobalX(mousex);
600 getSurface()._mousey = localToGlobalY(mousey);
602 case "Minimized": if (parent == null && getSurface() != null) getSurface().minimized = JSU.toBoolean(value); // FEATURE
603 case "Maximized": if (parent == null && getSurface() != null) getSurface().maximized = JSU.toBoolean(value); // FEATURE
604 case "Close": if (parent == null && getSurface() != null) getSurface().dispose(true);
606 for(Box cur = (Box)value; cur != null || cur == redirect; cur = cur.parent)
607 if (cur == redirect) { redirect = (Box)value; return; }
608 JSU.error("redirect can only be set to a descendant of its current value");
609 case "fontsize": font = Font.getFont(font == null ? null : font.stream, JSU.toInt(value)); RECONSTRAIN(); dirty();
611 if(!(value instanceof Fountain)) throw new JSExn("You can only put streams to the font property");
612 //FIXME: if (font == value) return; // FIXME: unclone()
613 font = value == null ? null : Font.getFont((Fountain)value, font == null ? 10 : font.pointsize);
616 case "x": if (parent==null && Surface.fromBox(this)!=null) {
619 if (test(PACKED) && parent != null) return;
623 case "y": if (parent==null && Surface.fromBox(this)!=null) {
626 if (test(PACKED) && parent != null) return;
630 case "titlebar": if (getSurface()!=null) getSurface().setTitleBarText(JSU.toString(value)); super.put(name,value);
633 case "Press1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
634 case "Press2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
635 case "Press3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
636 case "Release1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
637 case "Release2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
638 case "Release3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
639 case "Click1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
640 case "Click2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
641 case "Click3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
642 case "DoubleClick1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
643 case "DoubleClick2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
644 case "DoubleClick3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
645 case "KeyPressed": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
646 case "KeyReleased": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
647 case "Move": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
648 case "HScroll": if (!test(STOP_UPWARD_PROPAGATION) && parent != null)
649 parent.putAndTriggerTraps(name, JSU.N(JSU.toFloat(value) * ((float)parent.fontSize()) / ((float)fontSize())));
650 case "VScroll": if (!test(STOP_UPWARD_PROPAGATION) && parent != null)
651 parent.putAndTriggerTraps(name, JSU.N(JSU.toFloat(value) * ((float)parent.fontSize()) / ((float)fontSize())));
653 case "_Move": propagateDownward(name, value, false);
654 case "_Press1": propagateDownward(name, value, false);
655 case "_Press2": propagateDownward(name, value, false);
656 case "_Press3": propagateDownward(name, value, false);
657 case "_Release1": propagateDownward(name, value, false);
658 case "_Release2": propagateDownward(name, value, false);
659 case "_Release3": propagateDownward(name, value, false);
660 case "_Click1": propagateDownward(name, value, false);
661 case "_Click2": propagateDownward(name, value, false);
662 case "_Click3": propagateDownward(name, value, false);
663 case "_DoubleClick1": propagateDownward(name, value, false);
664 case "_DoubleClick2": propagateDownward(name, value, false);
665 case "_DoubleClick3": propagateDownward(name, value, false);
666 case "_KeyPressed": propagateDownward(name, value, false);
667 case "_KeyReleased": propagateDownward(name, value, false);
668 case "_HScroll": propagateDownward(name, value, false);
669 case "_VScroll": propagateDownward(name, value, false);
671 case "SizeChange": return;
672 case "ChildChange": return;
673 case "Enter": return;
674 case "Leave": return;
676 default: super.put(name, value);
680 private String alignToString() {
681 switch(flags & ALIGNS) {
682 case (ALIGN_TOP | ALIGN_LEFT): return "topleft";
683 case (ALIGN_BOTTOM | ALIGN_LEFT): return "bottomleft";
684 case (ALIGN_TOP | ALIGN_RIGHT): return "topright";
685 case (ALIGN_BOTTOM | ALIGN_RIGHT): return "bottomright";
686 case ALIGN_TOP: return "top";
687 case ALIGN_BOTTOM: return "bottom";
688 case ALIGN_LEFT: return "left";
689 case ALIGN_RIGHT: return "right";
690 case 0: return "center";
691 default: throw new Error("invalid alignment flags: " + (flags & ALIGNS));
695 private void setAlign(JS value) throws JSExn {
697 //#switch(JSU.toString(value))
698 case "topleft": set(ALIGN_TOP | ALIGN_LEFT);
699 case "bottomleft": set(ALIGN_BOTTOM | ALIGN_LEFT);
700 case "topright": set(ALIGN_TOP | ALIGN_RIGHT);
701 case "bottomright": set(ALIGN_BOTTOM | ALIGN_RIGHT);
702 case "top": set(ALIGN_TOP);
703 case "bottom": set(ALIGN_BOTTOM);
704 case "left": set(ALIGN_LEFT);
705 case "right": set(ALIGN_RIGHT);
706 default: JSU.log("invalid alignment \"" + JSU.str(value) + "\"");
710 private void setCursor(String value) throws JSExn {
711 if (value == null) { clear(CURSOR); boxToCursor.remove(this); return; }
712 if (value.equals(boxToCursor.get(this))) return;
714 boxToCursor.put(this, value);
715 Surface surface = getSurface();
716 if (surface == null) return;
717 String tempcursor = surface.cursor;
718 propagateDownward(null, null, false);
719 if (surface.cursor != tempcursor) surface.syncCursor();
722 private void setFill(JS value) throws JSExn {
724 if (texture == null && fillcolor == 0) return;
727 } else if (JSU.isString(value)) {
728 int newfillcolor = Color.stringToColor(JSU.toString(value));
729 if (newfillcolor == fillcolor) return;
730 fillcolor = newfillcolor;
733 Picture newtex = Picture.load((JS)value, this);
734 if (texture == newtex) return;
737 if (texture != null && texture.isLoaded) run(null);
743 * Handles events which propagate down the box tree. If obscured
744 * is set, then we merely check for Enter/Leave.
746 private void propagateDownward(JS name_, JS value, boolean obscured) throws JSExn {
748 String name = JSU.toString(name_);
749 if (getSurface() == null) return;
750 int x = globalToLocalX(getSurface()._mousex);
751 int y = globalToLocalY(getSurface()._mousey);
752 boolean wasinside = test(MOUSEINSIDE);
753 boolean isinside = test(VISIBLE) && inside(x, y) && !obscured;
754 if (!wasinside && isinside) {
756 putAndTriggerTrapsAndCatchExceptions(JSU.S("Enter"), JSU.T);
758 if (isinside && test(CURSOR)) getSurface().cursor = (String)boxToCursor.get(this);
759 if (wasinside && !isinside) {
761 putAndTriggerTrapsAndCatchExceptions(JSU.S("Leave"), JSU.T);
764 boolean found = false;
765 if (wasinside || isinside)
766 for(Box child = getChild(treeSize() - 1); child != null; child = child.prevSibling()) {
767 boolean save_stop = child.test(STOP_UPWARD_PROPAGATION);
769 if (name.equals("_HScroll") || name.equals("_VScroll"))
770 value2 = JSU.N(JSU.toFloat(value) * ((float)child.fontSize()) / (float)fontSize());
771 if (obscured || !child.inside(x - child.x, y - child.y)) {
772 child.propagateDownward(name_, value2, true);
775 child.clear(STOP_UPWARD_PROPAGATION);
776 if (name != null) child.putAndTriggerTrapsAndCatchExceptions(name_, value2);
777 else child.propagateDownward(name_, value2, obscured);
779 if (save_stop) child.set(STOP_UPWARD_PROPAGATION); else child.clear(STOP_UPWARD_PROPAGATION);
781 if (child.inside(x - child.x, y - child.y))
782 if (name != null && name.equals("_Move")) obscured = true;
786 if (!obscured && !found)
787 if ("_Move".equals(name) || name.startsWith("_Release") || wasinside)
789 putAndTriggerTrapsAndCatchExceptions(JSU.S(name.substring(1)), value);
792 /** figures out what box in this subtree of the Box owns the pixel at x,y relitave to the Surface */
793 public static Box whoIs(Box cur, int x, int y) {
795 if (cur.parent != null) throw new Error("whoIs may only be invoked on the root box of a surface");
799 // WARNING: this method is called from the event-queueing thread -- it may run concurrently with
800 // ANY part of Ibex, and is UNSYNCHRONIZED for performance reasons. BE CAREFUL HERE.
802 if (!cur.test(VISIBLE)) return null;
803 if (!cur.inside(x - globalx, y - globaly)) return cur.parent == null ? cur : null;
805 for(int i=cur.treeSize() - 1; i>=0; i--) {
806 Box child = cur.getChild(i);
807 if (child == null) continue; // since this method is unsynchronized, we have to double-check
810 if (child.test(VISIBLE) && child.inside(x - globalx, y - globaly)) { cur = child; continue OUTER; }
820 // Trivial Helper Methods (should be inlined) /////////////////////////////////////////
822 void mark_for_repack() { REPACK(); }
823 public Enumeration keys() { throw new Error("you cannot apply for..in to a " + this.getClass().getName()); }
824 public Box getRoot() { return parent == null ? this : parent.getRoot(); }
825 public Surface getSurface() { return Surface.fromBox(getRoot()); }
826 Box nextPackedSibling() { Box b = nextSibling(); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
827 Box firstPackedChild() { Box b = getChild(0); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
828 public int globalToLocalX(int x) { return parent == null ? x : parent.globalToLocalX(x - this.x); }
829 public int globalToLocalY(int y) { return parent == null ? y : parent.globalToLocalY(y - this.y); }
830 public int localToGlobalX(int x) { return parent == null ? x : parent.globalToLocalX(x + this.x); }
831 public int localToGlobalY(int y) { return parent == null ? y : parent.globalToLocalY(y + this.y); }
833 static short min(short a, short b) { if (a<b) return a; else return b; }
834 static int min(int a, int b) { if (a<b) return a; else return b; }
835 static float min(float a, float b) { if (a<b) return a; else return b; }
837 static short max(short a, short b) { if (a>b) return a; else return b; }
838 static int max(int a, int b) { if (a>b) return a; else return b; }
839 static float max(float a, float b) { if (a>b) return a; else return b; }
841 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; }
842 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; }
843 static int bound(int a, int b, int c) { if (c < b) return c; if (a > b) return a; return b; }
844 final boolean inside(int x, int y) { return test(VISIBLE) && x >= 0 && y >= 0 && x < width && y < height; }
846 void set(int mask) { flags |= mask; }
847 void set(int mask, boolean setclear) { if (setclear) set(mask); else clear(mask); }
848 void clear(int mask) { flags &= ~mask; }
849 public boolean test(int mask) { return ((flags & mask) == mask); }
852 // Tree Handling //////////////////////////////////////////////////////////////////////
854 public final int getIndexInParent() { return parent == null ? 0 : parent.indexNode(this); }
855 public final Box nextSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) + 1); }
856 public final Box prevSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) - 1); }
857 public final Box getChild(int i) {
858 if (i < 0) return null;
859 if (i >= treeSize()) return null;
860 return (Box)getNode(i);
863 // Tree Manipulation /////////////////////////////////////////////////////////////////////
865 public void removeSelf() {
866 if (parent != null) { parent.removeChild(parent.indexNode(this)); return; }
867 Surface surface = Surface.fromBox(this);
868 if (surface != null) surface.dispose(true);
871 /** remove the i^th child */
872 public void removeChild(int i) {
876 b.clear(MOUSEINSIDE);
880 putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), b);
883 public void put(int i, JS value) throws JSExn {
886 if (value != null && !(value instanceof Box)) {
887 if (Log.on) JSU.warn("attempt to set a numerical property on a box to a non-box");
891 if (redirect == null) {
892 if (value == null) putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), getChild(i));
893 else JSU.warn("attempt to add/remove children to/from a node with a null redirect");
895 } else if (redirect != this) {
896 if (value != null) putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), value);
897 redirect.put(i, value);
899 Box b = (Box)redirect.get(JSU.N(i));
900 if (b != null) putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), b);
903 } else if (value == null) {
904 if (i < 0 || i > treeSize()) return;
907 putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), b);
912 // check if box being moved is currently target of a redirect
913 for(Box cur = b.parent; cur != null; cur = cur.parent)
914 if (cur.redirect == b) {
915 if (Log.on) JSU.warn("attempt to move a box that is the target of a redirect");
919 // check for recursive ancestor violation
920 for(Box cur = this; cur != null; cur = cur.parent)
922 if (Log.on) JSU.warn("attempt to make a node a parent of its own ancestor");
923 if (Log.on) Log.info(this, "box == " + this + " ancestor == " + b);
927 if (b.parent != null) b.parent.removeChild(b.parent.indexNode(b));
931 // need both of these in case child was already uncalc'ed
936 putAndTriggerTrapsAndCatchExceptions(JSU.S("ChildChange"), b);
940 public void putAndTriggerTrapsAndCatchExceptions(JS name, JS val) {
942 putAndTriggerTraps(name, val);
944 JSU.log("caught js exception while putting to trap \""+ JSU.str(name)+"\"");
946 } catch (Exception e) {
947 JSU.log("caught exception while putting to trap \""+ JSU.str(name)+"\"");
952 // BalancedTree functions
953 private void insertNode(int p, Box b) {
954 if(bt == null) bt = new BalancedTree();
958 private int treeSize() { return bt == null ? 0 : bt.treeSize(); }
959 private int indexNode(Box b) { return bt == null ? -1 : bt.indexNode(b); }
960 private void deleteNode(int p) { bt.deleteNode(p); }
961 private Box getNode(int p) { return (Box)bt.getNode(p); }