* SizeChanges trigger an Surface.abort; if rendering were done in the same
* pass, rendering work done prior to the Surface.abort would be wasted.
*/
-public final class Box extends JSScope {
+public final class Box extends JSScope implements Scheduler.Task {
// Macros //////////////////////////////////////////////////////////////////////
static Hash boxToCursor = new Hash(500, 3);
public static final int MAX_LENGTH = Integer.MAX_VALUE;
+ static final Font DEFAULT_FONT = Font.getFont((Res)Main.builtin.get("fonts/vera/Vera.ttf"), 10);
+
+ // box properties can not be trapped
+ static final String[] props = new String[] {
+ "fill", "stroke", "image", "tile", "fixedaspect", "text", "path", "font",
+ "shrink", "hshrink", "vshrink", "x", "y", "width", "height", "cols", "rows",
+ "colspan", "rowspan", "align", "invisible", "absolute", "globalx", "globaly",
+ "minwidth", "maxwidth", "minheight", "maxheight",
+ "numchildren", "redirect", "cursor", "mousex", "mousey", "xwt", "static",
+ "mouseinside", "root", "thisbox", "indexof"
+ };
+
+ // events can have write traps, but not read traps
+ static final String[] events = new String[] {
+ "Press1", "Press2", "Press3",
+ "Release1", "Release2", "Release3",
+ "Click1", "Click2", "Click3",
+ "DoubleClick1", "DoubleClick2", "DoubleClick3",
+ "Enter", "Leave", "Move",
+ "KeyPressed", "KeyReleased", "PosChange", "SizeChange",
+
+ "childadded", "childremoved",
+
+ "Focused", "Maximized", "Minimized", "Close",
+ "icon", "titlebar", "toback", "tofront"
+ };
// Flags //////////////////////////////////////////////////////////////////////
int flags = VISIBLE | PACKED | REPACK | REFLOW | RESIZE | FIXED /* ROWS */;
private String text = null;
- private Font font = null;
- private Picture.Holder texture;
+ private Font font = DEFAULT_FONT;
+ private Picture texture;
private short strokewidth = 1;
private int fillcolor = 0x00000000;
private int strokecolor = 0xFF000000;
// Instance Methods /////////////////////////////////////////////////////////////////////
+
+ /** invoked when a resource needed to render ourselves finishes loading */
+ public void perform() {
+ MARK_REPACK;
+ MARK_REFLOW;
+ MARK_RESIZE;
+ dirty();
+ }
+
public Box getRoot() { return parent == null ? this : parent.getRoot(); }
public Surface getSurface() { return Surface.fromBox(getRoot()); }
private void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
// FEATURE reimplement, but we're destroying this
- if (x != this.x || y != this.y || width != this.width || height != this.height) {
+ // FIXME: uncommenting this breaks; see http://bugs.xwt.org/show_bug.cgi?id=345
+ //if (x != this.x || y != this.y || width != this.width || height != this.height) {
(parent == null ? this : parent).dirty(this.x, this.y, this.width, this.height);
boolean sizechange = (this.width != width || this.height != height) && getTrap("SizeChange") != null;
boolean poschange = (this.x != x || this.y != y) && getTrap("PosChange") != null;
this.width = width; this.height = height; this.x = x; this.y = y;
dirty();
- try { if (sizechange) putAndTriggerTraps("SizeChange", T); /*Surface.abort = true;*/ }
- catch (Exception e) { Log.log(this, e); }
- try { if (poschange) putAndTriggerTraps("PosChange", T); /*Surface.abort = true;*/ }
- catch (Exception e) { Log.log(this, e); }
- }
+ if (sizechange) try { putAndTriggerTraps("SizeChange", T); /*Surface.abort = true;*/ }
+ catch (Exception e) { Log.log(this, e); }
+ if (poschange) try { putAndTriggerTraps("PosChange", T); /*Surface.abort = true;*/ }
+ catch (Exception e) { Log.log(this, e); }
+ //}
}
private void resize_children() {
if ((fillcolor & 0xFF000000) != 0x00000000)
buf.fillTrapezoid(globalx, globalx + width, globaly, globalx, globalx + width, globaly + height, fillcolor);
- if (texture != null && texture.picture != null)
- for(int x = globalx; x < cx2; x += texture.picture.getWidth())
- for(int y = globaly; y < cy2; y += texture.picture.getHeight())
- buf.drawPicture(texture.picture, x, y, cx1, cy1, cx2, cy2);
+ if (texture != null && texture.isLoaded)
+ for(int x = globalx; x < cx2; x += texture.width)
+ for(int y = globaly; y < cy2; y += texture.height)
+ buf.drawPicture(texture, x, y, cx1, cy1, cx2, cy2);
- if (text != null && !text.equals("") && font != null)
+ if (text != null && !text.equals("") && font != null)
if (font.rasterizeGlyphs(text, buf, strokecolor, globalx, globaly, cx1, cy1, cx2, cy2, null) == -1)
- font.rasterizeGlyphs(text, buf, strokecolor, globalx, globaly, cx1, cy1, cx2, cy2,
- new Scheduler.Task() { public void perform() { Box b = Box.this; MARK_REFLOW_b; dirty(); }});
+ font.rasterizeGlyphs(text, buf, strokecolor, globalx, globaly, cx1, cy1, cx2, cy2, this);
for(Box b = getChild(0); b != null; b = b.nextSibling())
b.render(globalx, globaly, cx1, cy1, cx2, cy2, buf, null);
public Enumeration keys() { throw new Error("you cannot apply for..in to a " + this.getClass().getName()); }
- protected boolean isTrappable() { return true; }
- public Object get(Object name) {
+ protected boolean isTrappable(Object key, boolean isRead) {
+ if (key == null) return false;
+ else if (key instanceof String) {
+ // not allowed to trap box properties, and no read traps on events
+ String name = (String)key;
+ for (int i=0; i < props.length; i++) if (name.equals(props[i])) return false;
+ if (isRead) for (int i=0; i < events.length; i++) if (name.equals(events[i])) return false;
+ }
+
+ return true;
+ }
+
+ public Object get(Object name) throws JSExn {
if (name instanceof Number)
return redirect == null ? null : redirect == this ? getChild(toInt(name)) : redirect.get(name);
throw new Error("unreachable"); // unreachable
}
- public void put(Object name, Object value) {
+ public void put(Object name, Object value) throws JSExn {
if (name instanceof Number) { put(toInt(name), value); return; }
//#switch(name)
case "text": CHECKSET_STRING(text); MARK_RESIZE; dirty();
case "shrink": put("hshrink", value); put("vshrink", value);
case "hshrink": CHECKSET_FLAG(HSHRINK); MARK_RESIZE;
case "vshrink": CHECKSET_FLAG(VSHRINK); MARK_RESIZE;
- case "width": if (parent==null&&Surface.fromBox(this)!=null) { CHECKSET_INT(width); } else { put("maxwidth", value); put("minwidth", value); MARK_RESIZE; }
- case "height": if (parent == null&&Surface.fromBox(this)!=null) { CHECKSET_INT(height); } else { put("maxheight", value); put("minheight", value); MARK_RESIZE; }
+ case "width": if (parent==null&&Surface.fromBox(this)!=null) { Surface.fromBox(this).setWidth(toInt(value)); } else { put("maxwidth", value); put("minwidth", value); MARK_RESIZE; }
+ case "height": if (parent == null&&Surface.fromBox(this)!=null) { Surface.fromBox(this).setHeight(toInt(value)); } else { put("maxheight", value); put("minheight", value); MARK_RESIZE; }
case "maxwidth": CHECKSET_INT(maxwidth); MARK_RESIZE;
case "minwidth": CHECKSET_INT(minwidth); MARK_RESIZE;
case "maxheight": CHECKSET_INT(maxheight); MARK_RESIZE;
case "redirect": if (redirect == this) redirect = (Box)value; else Log.log(this, "redirect can only be set once");
case "font": font = value == null ? null : Font.getFont((Res)value, font == null ? 10 : font.pointsize); MARK_RESIZE; dirty();
case "fontsize": font = Font.getFont(font == null ? null : font.res, toInt(value)); MARK_RESIZE; dirty();
- case "x": if (test(PACKED) && parent != null) return; CHECKSET_INT(x); dirty(); MARK_RESIZE; dirty();
- case "y": if (test(PACKED) && parent != null) return; CHECKSET_INT(y); dirty(); MARK_RESIZE; dirty();
+ case "x": if (parent==null && Surface.fromBox(this)!=null) { CHECKSET_INT(x); } else { if (test(PACKED) && parent != null) return; CHECKSET_INT(x); dirty(); MARK_RESIZE; dirty(); }
+ case "y": if (parent==null && Surface.fromBox(this)!=null) { CHECKSET_INT(y); } else { if (test(PACKED) && parent != null) return; CHECKSET_INT(y); dirty(); MARK_RESIZE; dirty(); }
case "KeyPressed": return; // prevent stuff from hitting the Hash
case "KeyReleased": return; // prevent stuff from hitting the Hash
case "PosChange": return; // prevent stuff from hitting the Hash
case "SizeChange": return; // prevent stuff from hitting the Hash
case "childadded": return; // prevent stuff from hitting the Hash
case "childremoved": return; // prevent stuff from hitting the Hash
- case "thisbox": {
- if (value != null) break;
- if (parent != null) { parent.removeChild(parent.indexNode(this)); return; }
- Surface surface = Surface.fromBox(this);
- if (surface != null) surface.dispose(true);
- }
+ case "thisbox": if (value == null) removeSelf();
default: super.put(name, value);
//#end
}
return;
}
if (!(value instanceof Res)) return;
- texture = Picture.fromRes((Res)value, null);
- if (texture != null) {
- minwidth = texture.picture.getWidth();
- minheight = texture.picture.getHeight();
+
+
+ // FIXME
+ texture = Picture.load((Res)value, this);
+ if (texture.isLoaded) {
+ minwidth = texture.width;
+ minheight = texture.height;
MARK_REFLOW;
dirty();
return;
}
- texture = Picture.fromRes((Res)value, new Scheduler.Task() { public void perform() {
- minwidth = texture.picture.getWidth();
- minheight = texture.picture.getHeight();
+ texture = Picture.load((Res)value, new Scheduler.Task() { public void perform() {
+ // FIXME pass this instead of a new Task?
+ minwidth = texture.width;
+ minheight = texture.height;
Box b = Box.this; MARK_REFLOW_b;
dirty();
} });
// Tree Handling //////////////////////////////////////////////////////////////////////
- // FIXME inefficient
- public final Box nextSibling() {
- int index = parent.indexNode(this);
- if (index >= parent.treeSize() - 1) return null;
- return parent.getChild(index + 1);
- }
-
- // FIXME inefficient
- public final Box prevSibling() {
- int index = parent.indexNode(this);
- if (index <= 0) return null;
- return parent.getChild(index - 1);
- }
-
+ public final int getIndexInParent() { return parent == null ? 0 : parent.indexNode(this); }
+ public final Box nextSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) + 1); }
+ public final Box prevSibling() { return parent == null ? null : parent.getChild(parent.indexNode(this) - 1); }
public final Box getChild(int i) {
if (i < 0) return null;
if (i >= treeSize()) return null;
return (Box)getNode(i);
}
- public final int getIndexInParent() { return parent == null ? 0 : parent.indexNode(this); }
// Tree Manipulation /////////////////////////////////////////////////////////////////////
+ void removeSelf() {
+ if (parent != null) { parent.removeChild(parent.indexNode(this)); return; }
+ Surface surface = Surface.fromBox(this);
+ if (surface != null) surface.dispose(true);
+ }
+
/** remove the i^th child */
public void removeChild(int i) {
Box b = getChild(i);
putAndTriggerTraps("childremoved", b);
}
- public void put(int i, Object value) {
+ public void put(int i, Object value) throws JSExn {
if (i < 0) return;
if (value != null && !(value instanceof Box)) {
}
}
+
+ public final void putAndTriggerTraps(Object key, Object value) {
+ try {
+ super.putAndTriggerTraps(key, value);
+ } catch (JSExn jse) {
+ Log.logJS("attempt to put value " + value + " to key " + key + " on a box triggered a trap which threw:");
+ Log.logJS(jse);
+ }
+ }
+
+ public final Object getAndTriggerTraps(Object key) {
+ try {
+ return super.getAndTriggerTraps(key);
+ } catch (JSExn jse) {
+ Log.logJS("attempt to get key " + key + " on a box triggered a trap which threw:");
+ Log.logJS(jse);
+ return null;
+ }
+ }
}