Finally I found a working solution. I'm not sure if I like that way but it
works and its not that much more code.
Following is the wrapper-class. It contains a new property which is set as
the formatted date-string:
qx.Class.define("mkss.data.DateWrapper", {
extend: qx.core.Object,
properties: {
date: {
check: "Date",
apply: "_applyDate"
},
formattedDateString: {
check: "String",
event: "changeFormattedString"
}
},
construct: function (date, format) {
this.base(arguments);
this.dateFormat = new qx.util.format.DateFormat(format);
this.setDate(date);
},
members: {
_applyDate : function() {
this.setFormattedDateString(this._getFormattedDate());
},
_getFormattedDate: function () {
return this.dateFormat.format(this.getDate());
},
addDays: function (incDays) {
// found here: http://jsfiddle.net/sparebytes/XrWzq/
var tmpDate = new Date(this.getDate());
tmpDate.setDate(this.getDate().getDate() + incDays);
this.setDate(tmpDate);
}
}
});
This new property now is bound to the label which no longer needs to access
the format-method because everything is done in the wrapper.
var lblDate = new qx.ui.basic.Label();
this.bind("gameData.date.formattedDateString", lblDate, "value", {
converter: function (data) {
return "Datum: " + data;
}
});
this.add(lblDate);
Now in a loop by my manager-object I did not show here, the addDays-method
is called incrementally which updates the formatted value in the bound
label.
If anybody knows a better way, please let me know.
Thank you again and have a good night
LoneSurvivor
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