2 // Copyright 2004 Adam Megacz, see the COPYING file for licensing [GPL]
5 // FEATURE: mark to reflow starting with a certain child
6 // FEATURE: reintroduce surface.abort
10 import org.ibex.util.*;
11 import org.ibex.translators.*;
15 * Encapsulates the data for a single Ibex box as well as all layout
19 * <p>The rendering process consists of four phases; each requires
20 * one DFS pass over the tree</p>
21 * <ol><li> <b>repacking</b>: children of a box are packed into columns
22 * and rows according to their colspan/rowspan attributes and
24 * <ol><li> <b>reconstraining</b>: Minimum and maximum sizes of columns are computed.
25 * <li> <b>resizing</b>: width/height and x/y positions of children
26 * are assigned, and PosChange/SizeChanges are triggered.
27 * <li> <b>repainting</b>: children draw their content onto the PixelBuffer.
30 * The first three passes together are called the <i>reflow</i> phase.
31 * Reflowing is done in a seperate pass since PosChanges and
32 * SizeChanges trigger an Surface.abort; if rendering were done in the same
33 * pass, rendering work done prior to the Surface.abort would be wasted.
35 public final class Box extends JSScope implements Scheduler.Task {
37 // Macros //////////////////////////////////////////////////////////////////////
41 final void REPLACE() { for(Box b2 = this; b2 != null && !b2.test(REPLACE); b2 = b2.parent) b2.set(REPLACE); }
42 final void RECONSTRAIN() { for(Box b2 = this; b2 != null && !b2.test(RECONSTRAIN); b2 = b2.parent) b2.set(RECONSTRAIN); }
43 final void REPACK() { for(Box b2 = this; b2 != null && !b2.test(REPACK); b2 = b2.parent) b2.set(REPACK); }
45 //#define CHECKSET_SHORT(prop) short nu = (short)toInt(value); if (nu == prop) break; prop = nu;
46 //#define CHECKSET_INT(prop) int nu = toInt(value); if (nu == prop) break; prop = nu;
47 //#define CHECKSET_FLAG(flag) boolean nu = toBoolean(value); if (nu == test(flag)) break; if (nu) set(flag); else clear(flag);
48 //#define CHECKSET_BOOLEAN(prop) boolean nu = toBoolean(value); if (nu == prop) break; prop = nu;
49 //#define CHECKSET_STRING(prop) if ((value==null&&prop==null)||(value!=null&&JS.toString(value).equals(prop))) break; prop=JS.toString(value);
51 protected Box() { super(null); }
53 static Hash boxToCursor = new Hash(500, 3); // FIXME memory leak
54 public static final int MAX_LENGTH = Integer.MAX_VALUE;
55 static final Font DEFAULT_FONT;
59 try { f = Font.getFont((Stream)Main.builtin.get("fonts/vera/Vera.ttf"), 10); }
60 catch(JSExn e) { Log.info(Box.class, "should never happen: "+e); }
65 // box properties can not be trapped
66 static final String[] props = new String[] {
67 "shrink", "hshrink", "vshrink", "x", "y", "width", "height", "cols", "rows",
68 "colspan", "rowspan", "align", "visible", "packed", "globalx", "globaly",
69 "minwidth", "maxwidth", "minheight", "maxheight", "indexof", "thisbox", "clip",
70 "numchildren", "redirect", "cursor", "mouse"
74 // events can have write traps, but not read traps
75 static final String[] events = new String[] {
76 "Press1", "Press2", "Press3",
77 "Release1", "Release2", "Release3",
78 "Click1", "Click2", "Click3",
79 "DoubleClick1", "DoubleClick2", "DoubleClick3",
80 "Enter", "Leave", "Move", "ChildChange",
81 "KeyPressed", "KeyReleased", "SizeChange",
82 "Focused", "Maximized", "Minimized", "Close"
85 // Flags //////////////////////////////////////////////////////////////////////
87 static final int MOUSEINSIDE = 0x00000001;
88 static final int VISIBLE = 0x00000002;
89 static final int PACKED = 0x00000004;
90 static final int HSHRINK = 0x00000008;
91 static final int VSHRINK = 0x00000010;
92 static final int BLACK = 0x00000020; // for red-black code
94 static final int FIXED = 0x00000040;
95 static final boolean ROWS = true;
96 static final boolean COLS = false;
98 static final int ISROOT = 0x00000080;
99 static final int REPACK = 0x00000100;
100 static final int RECONSTRAIN = 0x00000200;
101 static final int REPLACE = 0x00000400;
103 static final int ALIGN_TOP = 0x00001000;
104 static final int ALIGN_BOTTOM = 0x00002000;
105 static final int ALIGN_LEFT = 0x00004000;
106 static final int ALIGN_RIGHT = 0x00008000;
107 static final int ALIGNS = 0x0000f000;
108 static final int CURSOR = 0x00010000; // if true, this box has a cursor in the cursor hash; FEATURE: GC issues?
109 static final int CLIP = 0x00020000;
110 static final int STOP_UPWARD_PROPAGATION = 0x00040000;
111 static final int MOVED = 0x00080000;
114 // Instance Data //////////////////////////////////////////////////////////////////////
118 int flags = VISIBLE | PACKED | REPACK | RECONSTRAIN | REPLACE | FIXED | STOP_UPWARD_PROPAGATION | CLIP | MOVED;
120 private String text = null;
121 private Font font = DEFAULT_FONT;
122 private Picture texture = null;
123 private short strokewidth = 1;
124 public int fillcolor = 0x00000000;
125 private int strokecolor = 0xFF000000;
127 private int aspect = 0;
129 // specified directly by user
130 public LENGTH minwidth = 0;
131 public LENGTH maxwidth = MAX_LENGTH;
132 public LENGTH minheight = 0;
133 public LENGTH maxheight = MAX_LENGTH;
134 private short rows = 1;
135 private short cols = 0;
136 private short rowspan = 1;
137 private short colspan = 1;
139 // computed during reflow
140 private short row = 0;
141 private short col = 0;
144 public LENGTH ax = 0; // FEATURE: roll these into x/y; requires lots of changes
145 public LENGTH ay = 0; // FEATURE: roll these into x/y; requires lots of changes; perhaps y()?
146 public LENGTH width = 0;
147 public LENGTH height = 0;
148 private LENGTH contentwidth = 0; // == max(minwidth, textwidth, sum(child.contentwidth))
149 private LENGTH contentheight = 0;
152 private VectorGraphics.VectorPath path = null;
153 private VectorGraphics.Affine transform = null;
154 private VectorGraphics.RasterPath rpath = null;
155 private VectorGraphics.Affine rtransform = null;
158 //#define DIRTY dirty()
160 // Instance Methods /////////////////////////////////////////////////////////////////////
162 public final int fontSize() { return font == null ? DEFAULT_FONT.pointsize : font.pointsize; }
164 /** invoked when a resource needed to render ourselves finishes loading */
165 public void perform() throws JSExn {
166 if (texture == null) { Log.warn(Box.class, "perform() called with null texture"); return; }
167 if (texture.isLoaded) {
168 setMinWidth(max(texture.width, minwidth));
169 setMinHeight(max(texture.height, minheight));
171 else { JS res = texture.stream; texture = null; throw new JSExn("image not found: "+res.unclone()); }
174 // FEATURE: use cx2/cy2 format
175 /** Adds the intersection of (x,y,w,h) and the node's current actual geometry to the Surface's dirty list */
176 public void dirty() { dirty(0, 0, width, height); }
177 public void dirty(int x, int y, int w, int h) {
178 for(Box cur = this; cur != null; cur = cur.parent) {
179 // x and y have a different meaning on the root box
180 if (cur.parent != null && cur.test(CLIP)) {
181 w = min(x + w, cur.width) - max(x, 0);
182 h = min(y + h, cur.height) - max(y, 0);
186 if (w <= 0 || h <= 0) return;
187 if (cur.parent == null && cur.getSurface() != null) cur.getSurface().dirty(x, y, w, h);
194 // Reflow ////////////////////////////////////////////////////////////////////////////////////////
196 /** should only be invoked on the root box */
197 void reflow() { pack(); resize(x, y, maxwidth, maxheight); place(); }
199 private static Box[] frontier = new Box[65535];
200 /** pack the boxes into rows and columns, compute contentwidth */
202 if (!test(REPACK)) { constrain(); return; }
203 boolean haskid = false;
204 for(Box child = getChild(0); child != null; child = child.nextSibling()) { haskid = true; child.pack(); }
205 if (!haskid) { clear(REPACK); constrain(); return; }
206 int frontier_size = 0;
207 //#repeat COLS/ROWS rows/cols cols/rows col/row row/col colspan/rowspan rowspan/colspan \
208 // contentheight/contentwidth contentwidth/contentheight
209 if (test(FIXED) == COLS) {
211 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
212 if (!child.test(PACKED) || !child.test(VISIBLE)) continue;
213 if (cols == 1) { child.row = rows; rows += child.rowspan; child.col = 0; continue; }
214 child.col = (short)(frontier_size <= 0 ? 0 : (frontier[frontier_size-1].col + frontier[frontier_size-1].colspan));
215 child.row = (short)(frontier_size <= 0 ? 0 : frontier[frontier_size-1].row);
216 if (child.col + min(cols,child.colspan) > cols) { child.col = 0; child.row++; }
217 for(int i=0; i<frontier_size; i++)
218 if (frontier[i].row + frontier[i].rowspan <= child.row) {
219 frontier[i--] = frontier[--frontier_size]; frontier[frontier_size] = null;
220 } else if (frontier[i].col<child.col+min(cols,child.colspan)&&frontier[i].col+frontier[i].colspan>child.col) {
221 child.col = (short)(frontier[i].col + frontier[i].colspan);
222 if (child.col + min(cols,child.colspan) > cols) {
223 child.row = (short)(frontier[i].row + frontier[i].rowspan);
224 for(i--; i>0; i--) child.row = (short)min(row, frontier[i].row + frontier[i].rowspan);
225 child.col = (short)0;
229 frontier[frontier_size++] = child;
231 for(int i=0; i<frontier_size; i++){ rows=(short)max(rows, frontier[i].row + frontier[i].rowspan); frontier[i] = null; }
235 set(RECONSTRAIN); // FIXME: be smarter / more incremental
239 public void constrain() {
240 if (!test(RECONSTRAIN)) return;
242 //#repeat contentwidth/contentheight contentheight/contentwidth minwidth/minheight row/col col/row \
243 // textwidth/textheight maxwidth/maxheight cols/rows rows/cols colspan/rowspan rowspan/colspan
244 contentwidth = bound(minwidth,
245 max(contentwidth, font == null || text == null ? 0 : font.textwidth(text)),
248 set(REPLACE); // FIXME: be smarter / more incremental
251 void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
252 if (x == this.x && y == this.y && width == this.width && height == this.height) return;
253 boolean sizechange = (this.width != width || this.height != height) && getTrap("SizeChange") != null;
254 int thisx = parent == null ? 0 : this.x;
255 int thisy = parent == null ? 0 : this.y;
256 Box who = (parent == null ? this : parent);
257 if (this.x != x || this.y != y) set(MOVED);
258 if (texture == null && (text == null || text.equals("")) && !test(MOVED)) {
259 if ((fillcolor & 0xff000000) != 0 || parent == null) {
260 who.dirty(thisx+min(this.width,width), thisy, Math.abs(width-this.width), max(this.height, height));
261 who.dirty(thisx, thisy+min(this.height,height), max(this.width, width), Math.abs(height-this.height));
263 this.width = width; this.height = height; this.x = x; this.y = y;
265 who.dirty(thisx, thisy, this.width, this.height);
266 this.width = width; this.height = height; this.x = x; this.y = y;
269 if (sizechange) putAndTriggerTrapsAndCatchExceptions("SizeChange", T);
272 private float targetColumnSize = (float)0.0;
273 private float targetRowSize = (float)0.0;
274 private static float[] sizes = new float[65535];
275 private static float[] sizes_v = new float[65535];
276 private static int[] regions = new int[65535];
277 private static int[] regions_v = new int[65535];
278 private static int numregions = 0;
279 private static int numregions_v = 0;
281 void solve(boolean findMinimum) {
282 int numkids = 0; for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling()) numkids++;
283 //#repeat col/row colspan/rowspan contentwidth/contentheight width/height HSHRINK/VSHRINK numregions/numregions_v \
284 // maxwidth/maxheight cols/rows minwidth/minheight regions/regions_v targetColumnSize/targetRowSize sizes/sizes_v \
287 if (findMinimum) contentwidth = 0;
288 else targetColumnSize = 0;
289 } else if (cols == 1) {
292 for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling())
293 contentwidth = max(contentwidth, c.contentwidth);
295 targetColumnSize = width;
297 } else if (cols > 1) do {
299 // FIXME: cache these?
302 for(Box c = firstPackedChild(); c != null; c = c.nextPackedSibling()) {
303 regions[numregions++] = c.col;
304 regions[numregions++] = min(cols, c.col+c.colspan);
306 Vec.sortInts(regions, 0, numregions);
308 int newnumregions = numregions;
309 for(int i=1; i<numregions; i++) {
310 if (regions[j] != regions[i]) j++;
311 else newnumregions--;
312 regions[j] = regions[i];
314 numregions = newnumregions;
315 if (regions[numregions-1] == cols) numregions--;
316 else regions[numregions] = cols;
318 int target = findMinimum ? 0 : Math.max(width, contentwidth);
319 // priority 0: (inviolable) honor minwidths
320 // priority 1: sum of columns no greater than parent
321 // priority 2: honor maxwidths
322 // priority 3: equalize columns
323 float targetColumnSize = target == 0 ? 0 : this.targetColumnSize;
324 float last_columnsize = 0;
325 float last_total = 0;
327 boolean first = true;
330 for(int r=0; r<numregions; r++) total += (sizes[r] = (float)(targetColumnSize * (regions[r+1]-regions[r])));
332 for(Box child = firstPackedChild(); child != null; child = child.nextPackedSibling())
333 for(int r=(child.col==0?0:minregion); r<numregions; r++) {
334 if (regions[r+1] < child.col) continue;
335 if (regions[r] >= min(child.col+child.colspan,cols)) { minregion = r; break; }
337 int child_maxwidth = child.test(HSHRINK)?child.contentwidth:child.maxwidth;
338 if (sizes[r] <= (float)(targetColumnSize*(regions[r+1]-regions[r])))
339 if ((child.colspan * targetColumnSize) > (child_maxwidth + (float)0.5))
340 sizes[r] = (float)Math.min(sizes[r], (regions[r+1]-regions[r])*(child_maxwidth/child.colspan));
341 if ((child.colspan * targetColumnSize) < (child.contentwidth - (float)0.5))
342 sizes[r] = (float)Math.max(sizes[r], (regions[r+1]-regions[r])*(child.contentwidth/child.colspan));
345 float save = targetColumnSize;
346 if (Math.abs(total - target) <= (float)1.0) break;
348 if (Math.abs(total - last_total) <= (float)1.0) break;
350 last_columnsize = ((total - target) / (float)cols) + targetColumnSize;
352 if (total < target) targetColumnSize += Math.abs((last_columnsize - targetColumnSize) / (float)1.1);
353 else if (total > target) targetColumnSize -= Math.abs((last_columnsize - targetColumnSize) / (float)1.1);
354 last_columnsize = save;
358 if (findMinimum) contentwidth = Math.round(total);
359 else this.targetColumnSize = targetColumnSize;
366 for(Box child = getChild(0); child != null; child = child.nextSibling()) {
367 if (!child.test(VISIBLE)) continue;
368 if (!child.test(REPLACE)) continue;
369 int child_width, child_height, child_x, child_y;
370 if (!child.test(PACKED)) {
371 child_width = child.test(HSHRINK) ? child.contentwidth : min(child.maxwidth, width - Math.abs(child.ax));
372 child_height = child.test(VSHRINK) ? child.contentheight : min(child.maxheight, height - Math.abs(child.ay));
373 child_width = max(child.minwidth, child_width);
374 child_height = max(child.minheight, child_height);
375 int gap_x = width - child_width;
376 int gap_y = height - child_height;
377 child_x = child.ax + (child.test(ALIGN_RIGHT) ? gap_x : !child.test(ALIGN_LEFT) ? gap_x / 2 : 0);
378 child_y = child.ay + (child.test(ALIGN_BOTTOM) ? gap_y : !child.test(ALIGN_TOP) ? gap_y / 2 : 0);
381 //#repeat col/row colspan/rowspan contentwidth/contentheight width/height colMaxWidth/rowMaxHeight \
382 // child_x/child_y x/y HSHRINK/VSHRINK maxwidth/maxheight cols/rows minwidth/minheight x_slack/y_slack \
383 // child_width/child_height ALIGN_RIGHT/ALIGN_BOTTOM ALIGN_LEFT/ALIGN_TOP lp_h/lp \
384 // numregions/numregions_v regions/regions_v targetColumnSize/targetRowSize sizes/sizes_v
390 for(int r=0; r<numregions; r++) {
391 if (regions[r] < child.col) child_x += Math.round(sizes[r]);
392 else if (regions[r] < child.col+child.colspan) child_width += Math.round(sizes[r]);
395 diff = (child_width - (child.test(HSHRINK) ? child.contentwidth : min(child_width, child.maxwidth)));
396 child_x += (child.test(ALIGN_RIGHT) ? diff : child.test(ALIGN_LEFT) ? 0 : diff / 2);
400 if (test(MOVED)) child.set(MOVED);
401 child.resize(child_x, child_y, child_width, child_height);
405 for(Box child = getChild(0); child != null; child = child.nextSibling())
406 if (child.test(VISIBLE) && child.treeSize() > 0)
412 // Rendering Pipeline /////////////////////////////////////////////////////////////////////
414 /** Renders self and children within the specified region. All rendering operations are clipped to xIn,yIn,wIn,hIn */
415 void render(int parentx, int parenty, int cx1, int cy1, int cx2, int cy2, PixelBuffer buf, VectorGraphics.Affine a) {
416 if (!test(VISIBLE)) return;
417 int globalx = parentx + (parent == null ? 0 : x);
418 int globaly = parenty + (parent == null ? 0 : y);
420 // intersect the x,y,w,h rendering window with ourselves; quit if it's empty
422 cx1 = max(cx1, globalx);
423 cy1 = max(cy1, globaly);
424 cx2 = min(cx2, globalx + width);
425 cy2 = min(cy2, globaly + height);
426 if (cx2 <= cx1 || cy2 <= cy1) return;
429 if ((fillcolor & 0xFF000000) != 0x00000000 || parent == null)
430 buf.fillTrapezoid(cx1, cx2, cy1, cx1, cx2, cy2, (fillcolor & 0xFF000000) == 0 ? 0xffffffff : fillcolor);
432 if (texture != null && texture.isLoaded)
433 for(int x = globalx; x < cx2; x += texture.width)
434 for(int y = globaly; y < cy2; y += texture.height)
435 buf.drawPicture(texture, x, y, cx1, cy1, cx2, cy2);
437 if (text != null && !text.equals("") && font != null) {
438 int gap_x = width - font.textwidth(text);
439 int gap_y = height - font.textheight(text);
440 int text_x = globalx + (test(ALIGN_RIGHT) ? gap_x : !test(ALIGN_LEFT) ? gap_x/2 : 0);
441 int text_y = globaly + (test(ALIGN_BOTTOM) ? gap_y : !test(ALIGN_TOP) ? gap_y/2 : 0);
442 font.rasterizeGlyphs(text, buf, strokecolor, text_x, text_y, cx1, cy1, cx2, cy2);
445 for(Box b = getChild(0); b != null; b = b.nextSibling())
446 b.render(globalx, globaly, cx1, cy1, cx2, cy2, buf, null);
450 // Methods to implement org.ibex.js.JS //////////////////////////////////////
453 public Object callMethod(Object method, Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn {
459 if (b.parent != this)
460 return (redirect == null || redirect == this) ?
462 redirect.callMethod(method, a0, a1, a2, rest, nargs);
463 return N(b.getIndexInParent());
468 ret.put("x", N(b.localToGlobalX(0) - localToGlobalX(0)));
469 ret.put("y", N(b.localToGlobalY(0) - localToGlobalY(0)));
475 return super.callMethod(method, a0, a1, a2, rest, nargs);
478 protected boolean isTrappable(Object key, boolean isRead) {
479 if (key == null) return false;
480 else if (key instanceof String) {
481 // not allowed to trap box properties, and no read traps on events
482 String name = (String)key;
483 for (int i=0; i < props.length; i++) if (name.equals(props[i])) return false;
484 if (isRead) for (int i=0; i < events.length; i++) if (name.equals(events[i])) return false;
490 public Object get(Object name) throws JSExn {
491 if (name instanceof Number)
492 return redirect == null ? null : redirect == this ? getChild(toInt(name)) : redirect.get(name);
495 case "surface": return parent == null ? null : parent.getAndTriggerTraps("surface");
496 case "indexof": return METHOD;
497 case "distanceto": return METHOD;
498 case "text": return text;
499 case "path": throw new JSExn("cannot read from the path property");
500 case "fill": return colorToString(fillcolor);
501 case "strokecolor": return colorToString(strokecolor);
502 case "textcolor": return colorToString(strokecolor);
503 case "font": return font == null ? null : font.stream;
504 case "fontsize": return font == null ? N(10) : N(font.pointsize);
505 case "strokewidth": return N(strokewidth);
506 case "align": return alignToString();
507 case "thisbox": return this;
508 case "shrink": return B(test(HSHRINK) || test(VSHRINK));
509 case "hshrink": return B(test(HSHRINK));
510 case "vshrink": return B(test(VSHRINK));
511 case "aspect": return N(aspect);
512 case "x": return (parent == null || !test(VISIBLE)) ? N(0) : test(PACKED) ? N(x) : N(ax);
513 case "y": return (parent == null || !test(VISIBLE)) ? N(0) : test(PACKED) ? N(y) : N(ay);
514 case "cols": return test(FIXED) == COLS ? N(cols) : N(0);
515 case "rows": return test(FIXED) == ROWS ? N(rows) : N(0);
516 case "colspan": return N(colspan);
517 case "rowspan": return N(rowspan);
518 case "width": getRoot().reflow(); return N(width);
519 case "height": getRoot().reflow(); return N(height);
520 case "minwidth": return N(minwidth);
521 case "maxwidth": return N(maxwidth);
522 case "minheight": return N(minheight);
523 case "maxheight": return N(maxheight);
524 case "clip": return B(test(CLIP));
525 case "visible": return B(test(VISIBLE) && (parent == null || (parent.get("visible") == T)));
526 case "packed": return B(test(PACKED));
527 case "globalx": return N(localToGlobalX(0));
528 case "globaly": return N(localToGlobalY(0));
529 case "cursor": return test(CURSOR) ? boxToCursor.get(this) : null;
531 if (getSurface() == null) return null;
532 if (getSurface()._mousex == Integer.MAX_VALUE)
533 throw new JSExn("you cannot read from the box.mouse property in background thread context");
535 case "numchildren": return redirect == null ? N(0) : redirect == this ? N(treeSize()) : redirect.get("numchildren");
536 case "redirect": return redirect == null ? null : redirect == this ? T : redirect.get("redirect");
537 case "Minimized": if (parent == null && getSurface() != null) return B(getSurface().minimized);
538 default: return super.get(name);
540 throw new Error("unreachable"); // unreachable
543 private class Mouse extends JS.Cloneable {
544 public Object get(Object key) {
546 case "x": return N(globalToLocalX(getSurface()._mousex));
547 case "y": return N(globalToLocalY(getSurface()._mousey));
549 // this might not get recomputed if we change mousex/mousey...
550 case "inside": return B(test(MOUSEINSIDE));
556 public void setMaxWidth(Object value) {
557 do { CHECKSET_INT(maxwidth); RECONSTRAIN(); } while(false);
558 if (parent == null && getSurface() != null) getSurface().pendingWidth = maxwidth;
560 public void setMaxHeight(Object value) {
561 do { CHECKSET_INT(maxheight); RECONSTRAIN(); } while(false);
562 if (parent == null && getSurface() != null) getSurface().pendingHeight = maxheight;
565 private void setMinWidth(int m) { if (this.minwidth != m) { RECONSTRAIN(); this.minwidth = m; } }
566 private void setMinHeight(int m) { if (this.minheight != m) { RECONSTRAIN(); this.minheight = m; } }
568 public void put(Object name, Object value) throws JSExn {
569 if (name instanceof Number) { put(toInt(name), value); return; }
571 case "text": if (value == null) value = ""; CHECKSET_STRING(text); RECONSTRAIN(); DIRTY;
572 case "strokecolor": value = N(stringToColor((String)value)); CHECKSET_INT(strokecolor); DIRTY;
573 case "textcolor": value = N(stringToColor((String)value)); CHECKSET_INT(strokecolor); DIRTY;
574 case "strokewidth": CHECKSET_SHORT(strokewidth); DIRTY;
575 case "shrink": put("hshrink", value); put("vshrink", value);
576 case "hshrink": CHECKSET_FLAG(HSHRINK); RECONSTRAIN();
577 case "vshrink": CHECKSET_FLAG(VSHRINK); RECONSTRAIN();
578 case "width": put("maxwidth", value); put("minwidth", value);
579 case "height": put("maxheight", value); put("minheight", value);
580 case "maxwidth": setMaxWidth(value);
581 case "minwidth": CHECKSET_INT(minwidth); RECONSTRAIN();
582 if (parent == null && getSurface() != null)
583 getSurface().setMinimumSize(minwidth, minheight, minwidth != maxwidth || minheight != maxheight);
584 case "maxheight": setMaxHeight(value);
585 case "minheight": CHECKSET_INT(minheight); RECONSTRAIN();
586 if (parent == null && getSurface() != null)
587 getSurface().setMinimumSize(minwidth, minheight, minwidth != maxwidth || minheight != maxheight);
588 case "colspan": if (toInt(value) > 0) { CHECKSET_SHORT(colspan); if (parent != null) parent.REPACK(); }
589 case "rowspan": if (toInt(value) > 0) { CHECKSET_SHORT(rowspan); if (parent != null) parent.REPACK(); }
590 case "rows": CHECKSET_SHORT(rows); if (rows==0){set(FIXED, COLS);if(cols==0)cols=1;} else set(FIXED, ROWS); REPACK();
591 case "cols": CHECKSET_SHORT(cols); if (cols==0){set(FIXED, ROWS);if(rows==0)rows=1;} else set(FIXED, COLS); REPACK();
592 case "clip": CHECKSET_FLAG(CLIP); if (parent == null) DIRTY; else parent.DIRTY;
593 case "visible": CHECKSET_FLAG(VISIBLE); RECONSTRAIN(); DIRTY;
594 case "packed": CHECKSET_FLAG(PACKED); if (parent != null) parent.REPACK();
595 case "align": clear(ALIGNS); setAlign(value == null ? "center" : value); REPLACE();
596 case "cursor": setCursor(value);
597 case "fill": setFill(value);
599 int mousex = toInt(((JS)value).get("x"));
600 int mousey = toInt(((JS)value).get("y"));
601 getSurface()._mousex = localToGlobalX(mousex);
602 getSurface()._mousey = localToGlobalY(mousey);
603 case "Minimized": if (parent == null && getSurface() != null) getSurface().minimized = toBoolean(value); // FEATURE
604 case "Maximized": if (parent == null && getSurface() != null) getSurface().maximized = toBoolean(value); // FEATURE
605 case "Close": if (parent == null && getSurface() != null) getSurface().dispose(true);
607 if (value == null) { redirect = null; return; }
608 for(Box cur = (Box)value; cur != null; cur = cur.parent)
609 if (cur == redirect) {
610 redirect = (Box)value;
613 JS.error("redirect can only be set to a descendant of its current value");
615 if(!(value instanceof Stream)) throw new JSExn("You can only put streams to the font property");
616 font = value == null ? null : Font.getFont((Stream)value, font == null ? 10 : font.pointsize);
619 case "fontsize": font = Font.getFont(font == null ? null : font.stream, toInt(value)); RECONSTRAIN(); DIRTY;
620 case "x": if (parent==null && Surface.fromBox(this)!=null) {
623 if (test(PACKED) && parent != null) return;
627 case "y": if (parent==null && Surface.fromBox(this)!=null) {
630 if (test(PACKED) && parent != null) return;
635 if (getSurface() != null && value != null) getSurface().setTitleBarText(JS.toString(value));
636 super.put(name,value);
638 case "Press1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
639 case "Press2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
640 case "Press3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
641 case "Release1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
642 case "Release2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
643 case "Release3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
644 case "Click1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
645 case "Click2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
646 case "Click3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
647 case "DoubleClick1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
648 case "DoubleClick2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
649 case "DoubleClick3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
650 case "KeyPressed": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
651 case "KeyReleased": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
652 case "Move": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.putAndTriggerTraps(name, value);
654 case "HScroll": if (!test(STOP_UPWARD_PROPAGATION) && parent != null)
655 parent.putAndTriggerTraps(name, N(((Number)value).floatValue() * ((float)parent.fontSize()) / ((float)fontSize())));
656 case "VScroll": if (!test(STOP_UPWARD_PROPAGATION) && parent != null)
657 parent.putAndTriggerTraps(name, N(((Number)value).floatValue() * ((float)parent.fontSize()) / ((float)fontSize())));
659 case "_Move": propagateDownward(name, value, false);
660 case "_Press1": propagateDownward(name, value, false);
661 case "_Press2": propagateDownward(name, value, false);
662 case "_Press3": propagateDownward(name, value, false);
663 case "_Release1": propagateDownward(name, value, false);
664 case "_Release2": propagateDownward(name, value, false);
665 case "_Release3": propagateDownward(name, value, false);
666 case "_Click1": propagateDownward(name, value, false);
667 case "_Click2": propagateDownward(name, value, false);
668 case "_Click3": propagateDownward(name, value, false);
669 case "_DoubleClick1": propagateDownward(name, value, false);
670 case "_DoubleClick2": propagateDownward(name, value, false);
671 case "_DoubleClick3": propagateDownward(name, value, false);
672 case "_KeyPressed": propagateDownward(name, value, false);
673 case "_KeyReleased": propagateDownward(name, value, false);
674 case "_HScroll": propagateDownward(name, value, false);
675 case "_VScroll": propagateDownward(name, value, false);
677 case "SizeChange": return;
678 case "ChildChange": return;
679 case "Enter": return;
680 case "Leave": return;
682 case "thisbox": if (value == null) removeSelf();
684 default: super.put(name, value);
688 private String alignToString() {
689 switch(flags & ALIGNS) {
690 case (ALIGN_TOP | ALIGN_LEFT): return "topleft";
691 case (ALIGN_BOTTOM | ALIGN_LEFT): return "bottomleft";
692 case (ALIGN_TOP | ALIGN_RIGHT): return "topright";
693 case (ALIGN_BOTTOM | ALIGN_RIGHT): return "bottomright";
694 case ALIGN_TOP: return "top";
695 case ALIGN_BOTTOM: return "bottom";
696 case ALIGN_LEFT: return "left";
697 case ALIGN_RIGHT: return "right";
698 case 0: return "center";
699 default: throw new Error("invalid alignment flags: " + (flags & ALIGNS));
703 private void setAlign(Object value) {
705 case "center": clear(ALIGNS);
706 case "topleft": set(ALIGN_TOP | ALIGN_LEFT);
707 case "bottomleft": set(ALIGN_BOTTOM | ALIGN_LEFT);
708 case "topright": set(ALIGN_TOP | ALIGN_RIGHT);
709 case "bottomright": set(ALIGN_BOTTOM | ALIGN_RIGHT);
710 case "top": set(ALIGN_TOP);
711 case "bottom": set(ALIGN_BOTTOM);
712 case "left": set(ALIGN_LEFT);
713 case "right": set(ALIGN_RIGHT);
714 default: JS.log("invalid alignment \"" + value + "\"");
718 private void setCursor(Object value) {
719 if (value == null) { clear(CURSOR); boxToCursor.remove(this); return; }
720 if (value.equals(boxToCursor.get(this))) return;
722 boxToCursor.put(this, value);
723 Surface surface = getSurface();
724 if (surface != null) {
725 String tempcursor = surface.cursor;
726 propagateDownward(null, null, false);
727 if (surface.cursor != tempcursor) surface.syncCursor();
731 private void setFill(Object value) throws JSExn {
733 // FIXME: Check this... does this make it transparent?
736 } else if (value instanceof String) {
737 // FIXME check double set
738 int newfillcolor = stringToColor((String)value);
739 if (newfillcolor == fillcolor) return;
740 fillcolor = newfillcolor;
741 } else if(value instanceof JS) {
742 texture = Picture.load((JS)value, this);
743 if (texture != null && texture.isLoaded) perform();
745 throw new JSExn("fill must be null, a String, or a stream, not a " + value.getClass());
750 // FIXME: mouse move/release still needs to propagate to boxen in which the mouse was pressed and is still held down
752 * Handles events which propagate down the box tree. If obscured
753 * is set, then we merely check for Enter/Leave.
755 private void propagateDownward(Object name_, Object value, boolean obscured) {
757 String name = (String)name_;
758 if (getSurface() == null) return;
759 int x = globalToLocalX(getSurface()._mousex);
760 int y = globalToLocalY(getSurface()._mousey);
761 boolean wasinside = test(MOUSEINSIDE);
762 boolean isinside = test(VISIBLE) && inside(x, y) && !obscured;
763 if (!wasinside && isinside) {
765 putAndTriggerTrapsAndCatchExceptions("Enter", T);
767 if (isinside && test(CURSOR)) getSurface().cursor = (String)boxToCursor.get(this);
768 if (wasinside && !isinside) {
770 putAndTriggerTrapsAndCatchExceptions("Leave", T);
773 boolean found = false;
774 if (wasinside || isinside)
775 for(Box child = getChild(treeSize() - 1); child != null; child = child.prevSibling()) {
776 boolean save_stop = child.test(STOP_UPWARD_PROPAGATION);
777 Object value2 = value;
778 if (name.equals("_HScroll") || name.equals("_VScroll"))
779 value2 = N(((Number)value).floatValue() * ((float)child.fontSize()) / (float)fontSize());
780 if (obscured || !child.inside(x - child.x, y - child.y)) {
781 child.propagateDownward(name, value2, true);
784 child.clear(STOP_UPWARD_PROPAGATION);
785 if (name != null) child.putAndTriggerTrapsAndCatchExceptions(name, value2);
786 else child.propagateDownward(name, value2, obscured);
788 if (save_stop) child.set(STOP_UPWARD_PROPAGATION); else child.clear(STOP_UPWARD_PROPAGATION);
790 if (child.inside(x - child.x, y - child.y))
791 if (name != null && name.equals("_Move")) obscured = true;
795 if (!obscured && !found)
796 if ("_Move".equals(name) || name.startsWith("_Release") || wasinside)
798 putAndTriggerTrapsAndCatchExceptions(name.substring(1), value);
801 private static int stringToColor(String s) {
802 // FIXME support three-char strings by doubling digits
803 if (s == null) return 0x00000000;
804 else if (SVG.colors.get(s) != null) return 0xFF000000 | toInt(SVG.colors.get(s));
805 else if (s.length() == 7 && s.charAt(0) == '#') try {
808 (Integer.parseInt(s.substring(1, 3), 16) << 16) |
809 (Integer.parseInt(s.substring(3, 5), 16) << 8) |
810 Integer.parseInt(s.substring(5, 7), 16);
811 } catch (NumberFormatException e) {
812 Log.info(Box.class, "invalid color " + s);
815 else return 0; // FEATURE: error?
818 private static String colorToString(int argb) {
819 if ((argb & 0xFF000000) == 0) return null;
820 String red = Integer.toHexString((argb & 0x00FF0000) >> 16);
821 String green = Integer.toHexString((argb & 0x0000FF00) >> 8);
822 String blue = Integer.toHexString(argb & 0x000000FF);
823 if (red.length() < 2) red = "0" + red;
824 if (blue.length() < 2) blue = "0" + blue;
825 if (green.length() < 2) green = "0" + green;
826 return "#" + red + green + blue;
829 /** figures out what box in this subtree of the Box owns the pixel at x,y relitave to the Surface */
830 public static Box whoIs(Box cur, int x, int y) {
832 if (cur.parent != null) throw new Error("whoIs may only be invoked on the root box of a surface");
836 // WARNING: this method is called from the event-queueing thread -- it may run concurrently with
837 // ANY part of Ibex, and is UNSYNCHRONIZED for performance reasons. BE CAREFUL HERE.
839 if (!cur.test(VISIBLE)) return null;
840 if (!cur.inside(x - globalx, y - globaly)) return cur.parent == null ? cur : null;
842 for(int i=cur.treeSize() - 1; i>=0; i--) {
843 Box child = cur.getChild(i);
844 if (child == null) continue; // since this method is unsynchronized, we have to double-check
847 if (child.test(VISIBLE) && child.inside(x - globalx, y - globaly)) { cur = child; continue OUTER; }
857 // Trivial Helper Methods (should be inlined) /////////////////////////////////////////
859 void mark_for_repack() { REPACK(); }
860 public Enumeration keys() { throw new Error("you cannot apply for..in to a " + this.getClass().getName()); }
861 public Box getRoot() { return parent == null ? this : parent.getRoot(); }
862 public Surface getSurface() { return Surface.fromBox(getRoot()); }
863 Box nextPackedSibling() { Box b = nextSibling(); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
864 Box firstPackedChild() { Box b = getChild(0); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
865 public int globalToLocalX(int x) { return parent == null ? x : parent.globalToLocalX(x - this.x); }
866 public int globalToLocalY(int y) { return parent == null ? y : parent.globalToLocalY(y - this.y); }
867 public int localToGlobalX(int x) { return parent == null ? x : parent.globalToLocalX(x + this.x); }
868 public int localToGlobalY(int y) { return parent == null ? y : parent.globalToLocalY(y + this.y); }
870 static short min(short a, short b) { if (a<b) return a; else return b; }
871 static int min(int a, int b) { if (a<b) return a; else return b; }
872 static float min(float a, float b) { if (a<b) return a; else return b; }
874 static short max(short a, short b) { if (a>b) return a; else return b; }
875 static int max(int a, int b) { if (a>b) return a; else return b; }
876 static float max(float a, float b) { if (a>b) return a; else return b; }
878 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; }
879 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; }
880 static int bound(int a, int b, int c) { if (c < b) return c; if (a > b) return a; return b; }
881 final boolean inside(int x, int y) { return test(VISIBLE) && x >= 0 && y >= 0 && x < width && y < height; }
883 void set(int mask) { flags |= mask; }
884 void set(int mask, boolean setclear) { if (setclear) set(mask); else clear(mask); }
885 void clear(int mask) { flags &= ~mask; }
886 boolean test(int mask) { return ((flags & mask) == mask); }
889 // Tree Handling //////////////////////////////////////////////////////////////////////
891 public final int getIndexInParent() { return parent == null ? 0 : parent.indexNode(this); }
892 public final Box nextSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) + 1); }
893 public final Box prevSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) - 1); }
894 public final Box getChild(int i) {
895 if (i < 0) return null;
896 if (i >= treeSize()) return null;
897 return (Box)getNode(i);
900 // Tree Manipulation /////////////////////////////////////////////////////////////////////
903 if (parent != null) { parent.removeChild(parent.indexNode(this)); return; }
904 Surface surface = Surface.fromBox(this);
905 if (surface != null) surface.dispose(true);
908 /** remove the i^th child */
909 public void removeChild(int i) {
913 b.clear(MOUSEINSIDE);
917 putAndTriggerTrapsAndCatchExceptions("ChildChange", b);
920 public void put(int i, Object value) throws JSExn {
923 if (value != null && !(value instanceof Box)) {
924 if (Log.on) JS.warn("attempt to set a numerical property on a box to a non-box");
928 if (redirect == null) {
929 if (value == null) putAndTriggerTrapsAndCatchExceptions("ChildChange", getChild(i));
930 else JS.warn("attempt to add/remove children to/from a node with a null redirect");
932 } else if (redirect != this) {
933 if (value != null) putAndTriggerTrapsAndCatchExceptions("ChildChange", value);
934 redirect.put(i, value);
936 Box b = (Box)redirect.get(new Integer(i));
937 if (b != null) putAndTriggerTrapsAndCatchExceptions("ChildChange", b);
940 } else if (value == null) {
941 if (i < 0 || i > treeSize()) return;
944 putAndTriggerTrapsAndCatchExceptions("ChildChange", b);
949 // check if box being moved is currently target of a redirect
950 for(Box cur = b.parent; cur != null; cur = cur.parent)
951 if (cur.redirect == b) {
952 if (Log.on) JS.warn("attempt to move a box that is the target of a redirect");
956 // check for recursive ancestor violation
957 for(Box cur = this; cur != null; cur = cur.parent)
959 if (Log.on) JS.warn("attempt to make a node a parent of its own ancestor");
960 if (Log.on) Log.info(this, "box == " + this + " ancestor == " + b);
964 if (b.parent != null) b.parent.removeChild(b.parent.indexNode(b));
968 // need both of these in case child was already uncalc'ed
973 putAndTriggerTrapsAndCatchExceptions("ChildChange", b);
977 void putAndTriggerTrapsAndCatchExceptions(Object name, Object val) {
979 putAndTriggerTraps(name, val);
981 JS.log("caught js exception while putting to trap \""+name+"\"");
983 } catch (Exception e) {
984 JS.log("caught exception while putting to trap \""+name+"\"");
999 if (rpath == null) rpath = path.realize(transform == null ? VectorGraphics.Affine.identity() : transform);
1000 if ((flags & HSHRINK) != 0) contentwidth = max(contentwidth, rpath.boundingBoxWidth());
1001 if ((flags & VSHRINK) != 0) contentheight = max(contentheight, rpath.boundingBoxHeight());
1002 // FIXME: separate offset_x needed for the path
1004 // #repeat x1/y1 x2/y2 x3/y3 x4/y4 contentwidth/contentheight left/top right/bottom
1005 int x1 = transform == null ? 0 : (int)transform.multiply_px(0, 0);
1006 int x2 = transform == null ? 0 : (int)transform.multiply_px(contentwidth, 0);
1007 int x3 = transform == null ? contentwidth : (int)transform.multiply_px(contentwidth, contentheight);
1008 int x4 = transform == null ? contentwidth : (int)transform.multiply_px(0, contentheight);
1009 int left = min(min(x1, x2), min(x3, x4));
1010 int right = max(max(x1, x2), max(x3, x4));
1011 contentwidth = max(contentwidth, right - left);
1012 offset_x = -1 * left;
1019 if (rtransform == null) rpath = null;
1020 else if (!rtransform.equalsIgnoringTranslation(a)) rpath = null;
1022 rpath.translate((int)(a.e - rtransform.e), (int)(a.f - rtransform.f));
1023 rtransform = a.copy();
1025 if (rpath == null) rpath = path.realize((rtransform = a) == null ? VectorGraphics.Affine.identity() : a);
1026 if ((strokecolor & 0xff000000) != 0) rpath.stroke(buf, 1, strokecolor);
1027 if ((fillcolor & 0xff000000) != 0) rpath.fill(buf, new VectorGraphics.SingleColorPaint(fillcolor));
1033 VectorGraphics.Affine a2 = VectorGraphics.Affine.translate(b.x, b.y);
1034 if (transform != null) a2.multiply(transform);
1035 a2.multiply(VectorGraphics.Affine.translate(offset_x, offset_y));