Hi Ulrich,
oh yes, this was exact the problem.
Thanks a lot for your help.
best regards
Hansjoerg
Ulrich Schreiner wrote:
>
> change
> BiggerButton.addListener("execute", this.bigfont);
> SmallerButton.addListener("execute", this.smallfont);
>
> to
>
> BiggerButton.addListener("execute", this.bigfont, this);
> SmallerButton.addListener("execute", this.smallfont, this);
>
> otherwise your functions are not executed in the right scope.
>
>
> Qoodary <[email protected]> hat am 18. September 2010 um 16:34
> geschrieben:
>
>>
>> Has nobody an advice for me? :-)
>>
>> I know that my problem is;
>> this.getRoot() in the function "bigfont"
>> But I do not understand in the moment why this cause a problem.
>> If I add
>> var doc = this.getRoot(); in the "main" function it is no problem.
>>
>> thanks a lot for any help.
>> regards
>> Hansjoerg
>>
>>
>>
>> Qoodary wrote:
>> >
>> > Hi all,
>> > I want to add an option for users to change the font size by hand.
>> > I add this menu:
>> > getFontSizeMenu : function()
>> > {
>> > var menu = new qx.ui.menu.Menu;
>> > var BiggerButton = new qx.ui.menu.Button(this.tr("Bigger
>> ++"));
>> > var SmallerButton = new qx.ui.menu.Button(this.tr("Smaller --"));
>> >
>> > BiggerButton.addListener("execute", this.bigfont);
>> > SmallerButton.addListener("execute", this.smallfont);
>> >
>> > menu.add(BiggerButton);
>> > menu.add(SmallerButton);
>> > return menu;
>> > },
>> >
>> > Functions:
>> > ---------------------------------
>> > bigfont : function() {
>> > var doc = this.getRoot();
>> > doc.setFont(new qx.bom.Font(20));
>> > }
>> > smallfont : function() {
>> > var doc = this.getRoot();
>> > doc.setFont(new qx.bom.Font(10));
>> > }
>> >
>> > I dont know if this is the correct way. If you click in the menu at
>> > "Bigger" I receive the error message
>> > this.getRoot is not a function
>> > [Break on this error] var doc = this.getRoot();
>> >
>> > What is wrong?
>> > How can you change the font in steps like +2 . -2 ?
>> >
>> > regards
>> > Hansjoerg
>> >
>>
>> --
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>>
>>
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> ------------------------------------------------------------------------------
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> and start using them to simplify application deployment and
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------------------------------------------------------------------------------
Start uncovering the many advantages of virtual appliances
and start using them to simplify application deployment and
accelerate your shift to cloud computing.
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