* 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 //////////////////////////////////////////////////////////////////////
//#define CHECKSET_BOOLEAN(prop) boolean nu = toBoolean(value); if (nu == prop) break; prop = nu;
//#define CHECKSET_STRING(prop) if ((value==null&&prop==null)||(value!=null&&value.equals(prop))) break; prop=(String)value;
+ void mark_for_repack() { MARK_REPACK; }
+
protected Box() { super(null); }
static Hash boxToCursor = new Hash(500, 3);
public static final int MAX_LENGTH = Integer.MAX_VALUE;
+ static final Font DEFAULT_FONT;
+
+ static {
+ Font f = null;
+ try { f = Font.getFont((Res)Main.builtin.get("fonts/vera/Vera.ttf"), 10); }
+ catch(JSExn e) { Log.log(Box.class, "should never happen: "+e); }
+ DEFAULT_FONT = f;
+ }
+
+ // FIXME update these
+ // 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", "visible", "absolute", "globalx", "globaly",
+ "minwidth", "maxwidth", "minheight", "maxheight",
+ "numchildren", "redirect", "cursor", "mousex", "mousey", "xwt", "static",
+ "mouseinside", "root", "thisbox", "indexof"
+ };
+
+ // FIXME update these
+ // 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 //////////////////////////////////////////////////////////////////////
static final int ALIGNS = 0x0000f000;
static final int CURSOR = 0x00010000; // if true, this box has a cursor in the cursor hash; FEATURE: GC issues?
static final int NOCLIP = 0x00020000;
+ static final int STOP_UPWARD_PROPAGATION = 0x00040000;
// Instance Data //////////////////////////////////////////////////////////////////////
Box parent = null;
Box redirect = this;
- int flags = VISIBLE | PACKED | REPACK | REFLOW | RESIZE | FIXED /* ROWS */;
+ int flags = VISIBLE | PACKED | REPACK | REFLOW | RESIZE | FIXED /* ROWS */ | STOP_UPWARD_PROPAGATION;
private String text = null;
- private Font font = null;
- private Picture.Holder texture;
+ private Font font = DEFAULT_FONT;
+ private Picture texture = null;
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() throws JSExn {
+ // as external events have occured, check the state of box
+ if (texture != null) {
+ if (texture.isLoaded) { minwidth = texture.width; minheight = texture.height; }
+ else { Res res = texture.res; texture = null; throw new JSExn("image not found: "+res); }
+ }
+
+ MARK_REPACK;
+ MARK_REFLOW;
+ MARK_RESIZE;
+ dirty();
+ }
+
public Box getRoot() { return parent == null ? this : parent.getRoot(); }
public Surface getSurface() { return Surface.fromBox(getRoot()); }
}
}
- /** update MOUSEINSIDE, check for Enter/Leave/Move */
- void Move(int oldmousex, int oldmousey, int mousex, int mousey) { Move(oldmousex, oldmousey, mousex, mousey, false); }
- void Move(int oldmousex, int oldmousey, int mousex, int mousey, boolean forceleave) {
- boolean wasinside = test(MOUSEINSIDE);
- boolean isinside = test(VISIBLE) && inside(mousex, mousey) && !forceleave;
- if (isinside) set(MOUSEINSIDE); else clear(MOUSEINSIDE);
- if (!wasinside && !isinside) return;
-
- if (isinside && test(CURSOR)) Surface.fromBox(getRoot()).cursor = (String)boxToCursor.get(this);
- if (!wasinside && isinside && getTrap("Enter") != null) putAndTriggerTraps("Enter", T);
- else if (wasinside && !isinside && getTrap("Leave") != null) putAndTriggerTraps("Leave", T);
- else if (wasinside && isinside && (mousex != oldmousex || mousey != oldmousey) && getTrap("Move")!= null)
- putAndTriggerTraps("Move", T);
- for(Box b = getChild(treeSize() - 1); b != null; b = b.prevSibling()) {
- b.Move(oldmousex - b.x, oldmousey - b.y, mousex - b.x, mousey - b.y, forceleave);
- if (b.inside(mousex - b.x, mousey - b.y)) forceleave = true;
- }
- }
-
// Reflow ////////////////////////////////////////////////////////////////////////////////////////
Box nextPackedSibling() { Box b = nextSibling(); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
Box firstPackedChild() { Box b = getChild(0); return b == null || (b.test(PACKED | VISIBLE)) ? b : b.nextPackedSibling(); }
- /** only for use on the root box */
- void reflow(int new_width, int new_height) {
- repack();
- /*
- new_width = bound(max(contentwidth, minwidth), new_width, test(HSHRINK) ? max(contentwidth, minwidth) : maxwidth);
- new_height = bound(max(contentheight, minheight), new_height, test(VSHRINK) ? max(contentheight, minheight) : maxheight);
- */
- resize(x, y, new_width, new_height);
- resize_children();
- }
-
/** pack the boxes into rows and columns; also computes contentwidth */
void repack() {
for(Box child = getChild(0); child != null; child = child.nextSibling()) child.repack();
//#end
}
- private void resize(LENGTH x, LENGTH y, LENGTH width, LENGTH height) {
+ 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) putAndTriggerTrapsAndCatchExceptions("SizeChange", T);
+ if (poschange) putAndTriggerTrapsAndCatchExceptions("PosChange", T);
+ //}
}
- private void resize_children() {
+ void resize_children() {
//#repeat col/row colspan/rowspan contentwidth/contentheight x/y width/height colMaxWidth/rowMaxHeight colWidth/rowHeight \
// HSHRINK/VSHRINK maxwidth/maxheight cols/rows minwidth/minheight colWidth/rowHeight x_slack/y_slack
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; }
+ 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
}
+ void setMaxWidth(Object value) { do { CHECKSET_INT(maxwidth); MARK_RESIZE; } while(false); }
+ void setMaxHeight(Object value) { do { CHECKSET_INT(maxheight); MARK_RESIZE; } while(false); }
+
public void put(Object name, Object value) throws JSExn {
if (name instanceof Number) { put(toInt(name), value); return; }
//#switch(name)
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 "maxwidth": CHECKSET_INT(maxwidth); MARK_RESIZE;
+ case "width": put("maxwidth", value); put("minwidth", value); MARK_RESIZE;
+ case "height": put("maxheight", value); put("minheight", value); MARK_RESIZE;
+ case "maxwidth": setMaxWidth(value);
case "minwidth": CHECKSET_INT(minwidth); MARK_RESIZE;
- case "maxheight": CHECKSET_INT(maxheight); MARK_RESIZE;
+ case "maxheight": setMaxHeight(value);
case "minheight": CHECKSET_INT(minheight); MARK_RESIZE;
case "colspan": CHECKSET_SHORT(colspan); MARK_REPACK_parent;
case "rowspan": CHECKSET_SHORT(rowspan); MARK_REPACK_parent;
case "align": clear(ALIGNS); setAlign(value == null ? "center" : value); MARK_RESIZE;
case "cursor": setCursor(value);
case "fill": setFill(value);
- case "Press1": mouseEvent("Press1", value);
- case "Press2": mouseEvent("Press2", value);
- case "Press3": mouseEvent("Press3", value);
- case "Release1": mouseEvent("Release1", value);
- case "Release2": mouseEvent("Release2", value);
- case "Release3": mouseEvent("Release3", value);
- case "Click1": mouseEvent("Click1", value);
- case "Click2": mouseEvent("Click2", value);
- case "Click3": mouseEvent("Click3", value);
- case "DoubleClick1": mouseEvent("DoubleClick1", value);
- case "DoubleClick2": mouseEvent("DoubleClick2", value);
- case "DoubleClick3": mouseEvent("DoubleClick3", value);
case "Minimized": if (parent == null && getSurface() != null) getSurface().minimized = toBoolean(value); // FEATURE
case "Maximized": if (parent == null && getSurface() != null) getSurface().maximized = toBoolean(value); // FEATURE
case "Close": if (parent == null && getSurface() != null) getSurface().dispose(true);
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 "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);
- }
- default: super.put(name, value);
+ 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 "Press1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Press2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Press3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Release1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Release2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Release3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Click1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Click2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Click3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "DoubleClick1": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "DoubleClick2": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "DoubleClick3": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "KeyPressed": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "KeyReleased": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Move": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Enter": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+ case "Leave": if (!test(STOP_UPWARD_PROPAGATION) && parent != null) parent.put(name, value);
+
+ case "_Move": propagateDownward(name, value, false);
+ case "_Press1": propagateDownward(name, value, false);
+ case "_Press2": propagateDownward(name, value, false);
+ case "_Press3": propagateDownward(name, value, false);
+ case "_Release1": propagateDownward(name, value, false);
+ case "_Release2": propagateDownward(name, value, false);
+ case "_Release3": propagateDownward(name, value, false);
+ case "_Click1": propagateDownward(name, value, false);
+ case "_Click2": propagateDownward(name, value, false);
+ case "_Click3": propagateDownward(name, value, false);
+ case "_DoubleClick1": propagateDownward(name, value, false);
+ case "_DoubleClick2": propagateDownward(name, value, false);
+ case "_DoubleClick3": propagateDownward(name, value, false);
+ case "_KeyPressed": propagateDownward(name, value, false);
+ case "_KeyReleased": propagateDownward(name, value, false);
+
+ case "PosChange": return;
+ case "SizeChange": return;
+ case "childadded": return;
+ case "childremoved": return;
+
+ case "thisbox": if (value == null) removeSelf();
+
+ default: super.put(name, value);
//#end
}
boxToCursor.put(this, value);
Surface surface = getSurface();
String tempcursor = surface.cursor;
- Move(surface.mousex, surface.mousey, surface.mousex, surface.mousey);
+ // FIXME
+ //Move(surface.mousex, surface.mousey, surface.mousex, surface.mousey);
if (surface.cursor != tempcursor) surface.syncCursor();
}
return;
}
if (!(value instanceof Res)) return;
- texture = Picture.fromRes((Res)value, null);
- if (texture != null) {
- minwidth = texture.picture.getWidth();
- minheight = texture.picture.getHeight();
- MARK_REFLOW;
- dirty();
- return;
- }
- texture = Picture.fromRes((Res)value, new Scheduler.Task() { public void perform() {
- minwidth = texture.picture.getWidth();
- minheight = texture.picture.getHeight();
- Box b = Box.this; MARK_REFLOW_b;
- dirty();
- } });
+
+ texture = Picture.load((Res)value, this);
}
-
- private void mouseEvent(String name, Object value) {
- Surface surface = getSurface();
- if (surface == null) return;
- int mousex = globalToLocalX(surface.mousex);
- int mousey = globalToLocalY(surface.mousey);
- for(Box c = prevSibling(); c != null; c = c.prevSibling())
- if (c.inside(mousex - c.x, mousey - c.y)) { c.putAndTriggerTraps(name, value); return; }
- if (parent != null) parent.putAndTriggerTraps(name, value);
+
+ /**
+ * Handles events which propagate down the box tree. If obscured
+ * is set, then we merely check for Enter/Leave.
+ */
+ private void propagateDownward(Object name_, Object value, boolean obscured) {
+
+ String name = (String)name_;
+ if (getSurface() == null) return;
+ int x = globalToLocalX(getSurface().mousex);
+ int y = globalToLocalY(getSurface().mousey);
+ boolean wasinside = test(MOUSEINSIDE);
+ boolean isinside = test(VISIBLE) && inside(x, y) && !obscured;
+ if (!wasinside && isinside) { set(MOUSEINSIDE); putAndTriggerTrapsAndCatchExceptions("Enter", T); }
+ if (wasinside && !isinside) { clear(MOUSEINSIDE); putAndTriggerTrapsAndCatchExceptions("Leave", T); }
+
+ boolean found = false;
+ if (wasinside || isinside)
+ for(Box child = getChild(treeSize() - 1); child != null; child = child.prevSibling()) {
+ boolean save_stop = child.test(STOP_UPWARD_PROPAGATION);
+ if (obscured || !child.inside(x - child.x, y - child.y)) {
+ child.propagateDownward(name, value, true);
+ } else try {
+ found = true;
+ child.clear(STOP_UPWARD_PROPAGATION);
+ child.putAndTriggerTrapsAndCatchExceptions(name, value);
+ } finally {
+ if (save_stop) child.set(STOP_UPWARD_PROPAGATION); else child.clear(STOP_UPWARD_PROPAGATION);
+ }
+ if (child.inside(x - child.x, y - child.y))
+ if (name.equals("_Move")) obscured = true;
+ else break;
+ }
+
+ if (!obscured && !found)
+ if (!name.equals("_Move") || wasinside) putAndTriggerTrapsAndCatchExceptions(name.substring(1), value);
}
private static int stringToColor(String s) {
// 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);
deleteNode(i);
b.parent = null;
MARK_REFLOW;
- putAndTriggerTraps("childremoved", b);
+ putAndTriggerTrapsAndCatchExceptions("childremoved", b);
}
public void put(int i, Object value) throws JSExn {
}
if (redirect == null) {
- if (value == null) putAndTriggerTraps("childremoved", getChild(i));
+ if (value == null) putAndTriggerTrapsAndCatchExceptions("childremoved", getChild(i));
else Log.logJS(this, "attempt to add/remove children to/from a node with a null redirect");
} else if (redirect != this) {
- if (value != null) putAndTriggerTraps("childadded", value);
+ if (value != null) putAndTriggerTrapsAndCatchExceptions("childadded", value);
redirect.put(i, value);
if (value == null) {
Box b = (Box)redirect.get(new Integer(i));
- if (b != null) putAndTriggerTraps("childremoved", b);
+ if (b != null) putAndTriggerTrapsAndCatchExceptions("childremoved", b);
}
} else if (value == null) {
if (i < 0 || i > treeSize()) return;
Box b = getChild(i);
removeChild(i);
- putAndTriggerTraps("childremoved", b);
+ putAndTriggerTrapsAndCatchExceptions("childremoved", b);
} else {
Box b = (Box)value;
MARK_REFLOW;
b.dirty();
- putAndTriggerTraps("childadded", b);
+ putAndTriggerTrapsAndCatchExceptions("childadded", b);
}
}
-
- public final void putAndTriggerTraps(Object key, Object value) {
+ void putAndTriggerTrapsAndCatchExceptions(Object name, Object val) {
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);
+ putAndTriggerTraps(name, val);
+ } catch (Exception e) {
+ Log.logJS("caught exception while putting to trap \""+name+"\"");
+ Log.logJS(e);
}
}
- 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;
- }
- }
}
projects / org.ibex.core.git / blobdiff