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Allow Item#_changed() to function before #_project is set.

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This commit is contained in:
Jürg Lehni 2013-07-21 15:44:18 -07:00
parent 86a8f85874
commit 5e2654b490
1 changed files with 25 additions and 20 deletions

45
src/item/Item.js
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@ -183,17 +183,20 @@ var Item = Base.extend(Callback, /** @lends Item# */{
* @param {ChangeFlag} flags describes what exactly has changed.
*/
_changed: function(flags) {
var parent = this._parent,
project = this._project,
symbol = this._parentSymbol;
if (flags & /*#=*/ ChangeFlag.GEOMETRY) {
// Clear cached bounds and position whenever geometry changes
delete this._bounds;
delete this._position;
}
if (this._parent
&& (flags & (/*#=*/ ChangeFlag.GEOMETRY | /*#=*/ ChangeFlag.STROKE))) {
if (parent && (flags
& (/*#=*/ ChangeFlag.GEOMETRY | /*#=*/ ChangeFlag.STROKE))) {
// Clear cached bounds of all items that this item contributes to.
// We call this on the parent, since the information is cached on
// the parent, see getBounds().
this._parent._clearBoundsCache();
parent._clearBoundsCache();
}
if (flags & /*#=*/ ChangeFlag.HIERARCHY) {
// Clear cached bounds of all items that this item contributes to.
@ -202,25 +205,27 @@ var Item = Base.extend(Callback, /** @lends Item# */{
// HIERARCHY notifications go)
this._clearBoundsCache();
}
if (flags & /*#=*/ ChangeFlag.APPEARANCE) {
this._project._needsRedraw = true;
}
// If this item is a symbol's definition, notify it of the change too
if (this._parentSymbol)
this._parentSymbol._changed(flags);
// Have project keep track of changed items, so they can be iterated.
// This can be used for example to update the SVG tree. Needs to be
// activated in Project
if (this._project._changes) {
var entry = this._project._changesById[this._id];
if (entry) {
entry.flags |= flags;
} else {
entry = { item: this, flags: flags };
this._project._changesById[this._id] = entry;
this._project._changes.push(entry);
if (project) {
if (flags & /*#=*/ ChangeFlag.APPEARANCE) {
project._needsRedraw = true;
}
// Have project keep track of changed items so they can be iterated.
// This can be used for example to update the SVG tree. Needs to be
// activated in Project
if (project._changes) {
var entry = project._changesById[this._id];
if (entry) {
entry.flags |= flags;
} else {
entry = { item: this, flags: flags };
project._changesById[this._id] = entry;
project._changes.push(entry);
}
}
}
// If this item is a symbol's definition, notify it of the change too
if (symbol)
symbol._changed(flags);
},
/**