Re: Two Marker Styles and SetMarkerAttributes

Hi Rene,

I draw a class A which paints (in Paint) some TLine. I have two different kind of lines which are painted and I want to be able to open the corresponding dialog to change the line style. The two line styles TAttLine are a datamember in my clas A.

For several reasons it is not possible to draw each graphical object, I can only draw the container and than paint the graphical elements in Paint() of this object.

None of the examples you mention has two different line styles. Assume a very simple example: You have a box in which the two parallel border lines should have different line styles and the user should be able to change it.

Thomas.

Rene Brun wrote:
> Thomas,
>
> It does not make sense to draw a TAttxxx class.
> What do you want to draw? where?
> These classes make sense only when used with multiple inheritance
> in TObject derived objects. See plenty of examples in ROOT classes
> Tline, TBix, TText, TH1, etc.
>
> Rene Brun
>
> On Fri, 29 Jul 2005, Thomas Bretz wrote:
>

>> How can I draw a TAtt*, this classes do not derive from TObject.
>>
>> Do I have to make a workaround as
>> class MyAtt : public TObject, public TAttMarker
>> {
>> }
>>
>> Thomas.
>>
>> Rene Brun wrote:
>>
>>> Two points:
>>>  -the object must be drawn in the pad
>>>  -the function with *MENU* must be a public function
>>>
>>> Rene
>>>
>>> On Thu, 28 Jul 2005, Thomas Bretz wrote:
>>>
>>>> Dear all,
>>>>
>>>> I have a class which contains two TAttMarkerStyle for two different 
>>>> purposes. I thought, I could add both to the context menu by:
>>>>
>>>> class A : public TAttLine
>>>> {
>>>> TAttMarker m1;
>>>> TAttMarker m2;
>>>> void SetAtt1() { m1.SetMarkerAttributes; } //*MENU*
>>>> void SetAtt2() { m2.SetMarkerAttributes; } //*MENU*
>>>> }
>>>> But using the corresponding menu entries in the context menu I 
>>>> always get the SetLineAttributes() menu...
>>>>
>>>> You can reproduce it in the interpreter by:
>>>> new TCanvas;
>>>> TAttMarker m;
>>>> m.SetMarkerAttributes();
>>>>
>>>> --> You get the SetPadAttributes() menu.
>>>>
>>>> I'm using root 4.04/02.
>>>>
>>>> Can somebody help me?
>>>>
>>>> Thanks in advance,
>>>> Thomas.
>>>>
>>>
>>