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digitalmars.D.learn - GTKD - get CSS class for button

reply TheDGuy <a.b gmail.de> writes:
Hello,
i would like to know if it possible to get the CSS-class which is 
asigned to a button (for example)? I didn't find any 
documentation about this, just the function 
"getStyleContext().getProperty()", my current attempt:

Value value;
bArr[0].getStyleContext().getProperty("Class",StateFlags.NORMAL,value);


(bArr is an array of buttons).

I get the error, that 'Value' is not defined, if i use 'GValue' 
(as it is described here: 
https://developer.gnome.org/gtk3/stable/GtkStyleContext.html#gtk-style-c
ntext-get-property) i get 'function is not callable with GValue'

Any ideas? Thanks alot!
Jun 22 2016
parent reply Gerald <gerald.b.nunn gmail.com> writes:
On Wednesday, 22 June 2016 at 08:08:20 UTC, TheDGuy wrote:

 Hello,
 i would like to know if it possible to get the CSS-class which 
 is asigned to a button (for example)? I didn't find any 
 documentation about this, just the function 
 "getStyleContext().getProperty()", my current attempt:

 Value value;
 bArr[0].getStyleContext().getProperty("Class",StateFlags.NORMAL,value);


 (bArr is an array of buttons).

 I get the error, that 'Value' is not defined, if i use 'GValue' 
 (as it is described here: 
 https://developer.gnome.org/gtk3/stable/GtkStyleContext.html#gtk-style-c
ntext-get-property) i get 'function is not callable with GValue'

 Any ideas? Thanks alot!


widget.getStyleContext().listClasses() to get a list of all 
classes assigned to the widget. If you just want to see if a 
specific class is assigned to the widget you can use 
widget.getStyleContext().hasClass()
Jun 22 2016
parent reply TheDGuy <a.b gmail.de> writes:
 widget.getStyleContext().listClasses() to get a list of all 
 classes assigned to the widget. If you just want to see if a 
 specific class is assigned to the widget you can use 
 widget.getStyleContext().hasClass()


Thanks a lot for your answer. Do you know how i can get the first 
classname as string from the widget? I don't understand how the 
return type 'GList' is organized.
Jun 22 2016
parent reply Gerald <gerald.b.nunn gmail.com> writes:
On Wednesday, 22 June 2016 at 12:57:51 UTC, TheDGuy wrote:

 widget.getStyleContext().listClasses() to get a list of all 
 classes assigned to the widget. If you just want to see if a 
 specific class is assigned to the widget you can use 
 widget.getStyleContext().hasClass()


 Thanks a lot for your answer. Do you know how i can get the 
 first classname as string from the widget? I don't understand 
 how the return type 'GList' is organized.


ListG has a D specific method called toArray that allows you to 
convert it to a typed array, so you could use it in this case to 
get a string[] out of it.

http://api.gtkd.org/src/glib/ListG.html
Jun 22 2016
parent reply TheDGuy <a.b gmail.de> writes:
On Wednesday, 22 June 2016 at 13:47:01 UTC, Gerald wrote:

 On Wednesday, 22 June 2016 at 12:57:51 UTC, TheDGuy wrote:

 widget.getStyleContext().listClasses() to get a list of all 
 classes assigned to the widget. If you just want to see if a 
 specific class is assigned to the widget you can use 
 widget.getStyleContext().hasClass()


 Thanks a lot for your answer. Do you know how i can get the 
 first classname as string from the widget? I don't understand 
 how the return type 'GList' is organized.


 ListG has a D specific method called toArray that allows you to 
 convert it to a typed array, so you could use it in this case 
 to get a string[] out of it.

 http://api.gtkd.org/src/glib/ListG.html


"Type T wraps should match the type of the data"

Does string match the type of the data? What is the type of the 
data? How do i tell the function that i want the Array as a 
string array? I am not familiar with Types and what 'TC' or 'T' 
is, i am afraid.
Jun 22 2016
parent reply Mike Wey <mike-wey example.com> writes:
On 06/22/2016 05:16 PM, TheDGuy wrote:

 On Wednesday, 22 June 2016 at 13:47:01 UTC, Gerald wrote:

 On Wednesday, 22 June 2016 at 12:57:51 UTC, TheDGuy wrote:

 widget.getStyleContext().listClasses() to get a list of all classes
 assigned to the widget. If you just want to see if a specific class
 is assigned to the widget you can use
 widget.getStyleContext().hasClass()


 Thanks a lot for your answer. Do you know how i can get the first
 classname as string from the widget? I don't understand how the
 return type 'GList' is organized.


 ListG has a D specific method called toArray that allows you to
 convert it to a typed array, so you could use it in this case to get a
 string[] out of it.

 http://api.gtkd.org/src/glib/ListG.html


 "Type T wraps should match the type of the data"

 Does string match the type of the data? What is the type of the data?
 How do i tell the function that i want the Array as a string array? I am
 not familiar with Types and what 'TC' or 'T' is, i am afraid.


toArray currently only works for GtkD classes, so it doesn't work for 
lists of stings.

ListG is a linked list, the data is stored in the data property. to 
iterate over the list do something like this:

```
ListG list = widget.getStyleContext().listClasses();

while(list !is null)
{
	string str = to!string(cast(char*)list.data);

	//do something with str.

	list = list.next;
}
```

-- 
Mike Wey
Jun 22 2016
parent TheDGuy <a.b gmail.de> writes:
On Wednesday, 22 June 2016 at 17:50:53 UTC, Mike Wey wrote:

 "Type T wraps should match the type of the data"

 Does string match the type of the data? What is the type of 
 the data?
 How do i tell the function that i want the Array as a string 
 array? I am
 not familiar with Types and what 'TC' or 'T' is, i am afraid.


 toArray currently only works for GtkD classes, so it doesn't 
 work for lists of stings.

 ListG is a linked list, the data is stored in the data 
 property. to iterate over the list do something like this:

 ```
 ListG list = widget.getStyleContext().listClasses();

 while(list !is null)
 {
 	string str = to!string(cast(char*)list.data);

 	//do something with str.

 	list = list.next;
 }
 ```


Thanks alot! Works perfectly!
Jun 22 2016