subject:"Re\: Fetching gtkmm custom css style properties"

Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Daniel Boles via gtkmm-list

you can just type any property name though. the argument is just a string.
the symbols in the header are just macros and not exhaustive.

glad to help. have fun!


On Wed, 19 Feb 2020, 11:23 Mohith Manoj via gtkmm-list, <
gtkmm-list@gnome.org> wrote:

> viola... that gets the wheel rolling.
>
> *gtk_style_context_get* works. However, there are only 10 style
> properties defined in gtkstylecontext.h that we can retrieve this way and
> not all the style properties listed in Gtk-Inspector. For example there is
> a single definition for border radius as,
> #define GTK_STYLE_PROPERTY_BORDER_RADIUS "border-radius"
> While Gtk-Inspector lists one radii for each of the four corners. Which
> makes sense because in cases where you have linked buttons inside a button
> box (with 'linked' style class added), individual corners needs to be
> manipulated depending on the position of the button in the group and
> whether they are vertically stacked or horizontally.
>
> Anyway this is a good starting point. Many thanks to Daniel Boles.
> This post in Stackoverflow confirms the findings.
>
> https://stackoverflow.com/questions/47371967/getting-objects-out-of-a-gvalue
>
>
>
>
>
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Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Mohith Manoj via gtkmm-list

viola... that gets the wheel rolling.

*gtk_style_context_get* works. However, there are only 10 style properties
defined in gtkstylecontext.h that we can retrieve this way and not all the
style properties listed in Gtk-Inspector. For example there is a single
definition for border radius as,
#define GTK_STYLE_PROPERTY_BORDER_RADIUS "border-radius"
While Gtk-Inspector lists one radii for each of the four corners. Which
makes sense because in cases where you have linked buttons inside a button
box (with 'linked' style class added), individual corners needs to be
manipulated depending on the position of the button in the group and
whether they are vertically stacked or horizontally.

Anyway this is a good starting point. Many thanks to Daniel Boles.
This post in Stackoverflow confirms the findings.
https://stackoverflow.com/questions/47371967/getting-objects-out-of-a-gvalue

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Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Daniel Boles via gtkmm-list

-- Forwarded message -
From: Daniel Boles 
Date: Wed, 19 Feb 2020, 10:31
Subject: Re: Fetching gtkmm custom css style properties
To: Mohith Manoj 


Oh, sorry.

What you want is not Object.get_property but rather StyleContext.get, but
the latter is not wrapped in gtkmm yet.

So you would have to use C code, something like

auto opacity = double{};
gtk_style_context_get(styleContext->gobj(), styleContext->get_state(),
"opacity", , NULL);

you may need to cast the state too, but you get the idea i hope :-) this
can be hidden in a helper function, made into a template, etc.





On Wed, 19 Feb 2020, 10:24 Mohith Manoj via gtkmm-list, <
gtkmm-list@gnome.org> wrote:

> Sorry I felt a bit dumb at this point, so I though I'll try all
> combinations. Following code is executed on a button press from a custom
> widget derived from Gtk::ToggleButton.
>   int nValue;
>   Glib::RefPtr refStyleContext =
> get_style_context();
>
>   refStyleContext->get_property("color", nValue);
>   refStyleContext->get_property("css-color", nValue);
>
>   refStyleContext->get_style_property("color", nValue);
>   refStyleContext->get_style_property("css-color", nValue);
>
>   get_property("color", nValue);
>   get_property("css-color", nValue);
>
> All six lines threw warnings as below.
>
>
>
>
>
>
>
>
>
>
>
> *(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
> g_object_get_is_valid_property: object class 'GtkStyleContext' has no
> property named 'color'(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
> g_object_get_is_valid_property: object class 'GtkStyleContext' has no
> property named 'css-color'(TV_UI:21972): Gtk-WARNING **: 15:49:20.480:
> ../../../../gtk/gtkstylecontext.c:1796: widget class
> 'gtkmm__GtkToggleButton' has no style property named 'color'(TV_UI:21972):
> Gtk-WARNING **: 15:49:20.480: ../../../../gtk/gtkstylecontext.c:1796:
> widget class 'gtkmm__GtkToggleButton' has no style property named
> 'css-color'(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
> g_object_get_is_valid_property: object class 'gtkmm__GtkToggleButton' has
> no property named 'color'(TV_UI:21972): GLib-GObject-WARNING **:
> 15:49:20.480: g_object_get_is_valid_property: object class
> 'gtkmm__GtkToggleButton' has no property named 'css-color'*
>
>
>
>
>
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Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Mohith Manoj via gtkmm-list

Sorry I felt a bit dumb at this point, so I though I'll try all
combinations. Following code is executed on a button press from a custom
widget derived from Gtk::ToggleButton.
  int nValue;
  Glib::RefPtr refStyleContext = get_style_context();

  refStyleContext->get_property("color", nValue);
  refStyleContext->get_property("css-color", nValue);

  refStyleContext->get_style_property("color", nValue);
  refStyleContext->get_style_property("css-color", nValue);

  get_property("color", nValue);
  get_property("css-color", nValue);

All six lines threw warnings as below.











*(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
g_object_get_is_valid_property: object class 'GtkStyleContext' has no
property named 'color'(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
g_object_get_is_valid_property: object class 'GtkStyleContext' has no
property named 'css-color'(TV_UI:21972): Gtk-WARNING **: 15:49:20.480:
../../../../gtk/gtkstylecontext.c:1796: widget class
'gtkmm__GtkToggleButton' has no style property named 'color'(TV_UI:21972):
Gtk-WARNING **: 15:49:20.480: ../../../../gtk/gtkstylecontext.c:1796:
widget class 'gtkmm__GtkToggleButton' has no style property named
'css-color'(TV_UI:21972): GLib-GObject-WARNING **: 15:49:20.480:
g_object_get_is_valid_property: object class 'gtkmm__GtkToggleButton' has
no property named 'color'(TV_UI:21972): GLib-GObject-WARNING **:
15:49:20.480: g_object_get_is_valid_property: object class
'gtkmm__GtkToggleButton' has no property named 'css-color'*

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Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Daniel Boles via gtkmm-list

it doesnt work because those are CSS properties, which are not widget style
properties.

use get_property("css-prop-name", dst_value)


On Wed, 19 Feb 2020, 09:51 Mohith Manoj via gtkmm-list, <
gtkmm-list@gnome.org> wrote:

> Of course... get_color() works as we have seen in the example code. But to
> get a property like 'border-top-left-radius' or 'border-right-color' there
> is no direct API and we are dependent on something like
> Gtk::StyleContext::get_style_property, but since this doesn't work we have
> our hunting hat on.
>
> On Wed, Feb 19, 2020 at 12:27 PM Daniel Boles via gtkmm-list <
> gtkmm-list@gnome.org> wrote:
>
>> color is a normal css property, not a widget style property. use the
>> right api for that. there is get_property() and iirc maybe even get_color().
>>
>> don't use widget style properties in new code because they are removed in
>> gtk 4.
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>>
>
>
>
> *Please consider the Environment before printing this e-mail.*
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> The information contained in this message (including any attachments) is
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> If you are not the intended recipient, you must not copy this message or
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Re: Fetching gtkmm custom css style properties

2020-02-19 Thread Mohith Manoj via gtkmm-list

Of course... get_color() works as we have seen in the example code. But to
get a property like 'border-top-left-radius' or 'border-right-color' there
is no direct API and we are dependent on something like
Gtk::StyleContext::get_style_property, but since this doesn't work we have
our hunting hat on.

On Wed, Feb 19, 2020 at 12:27 PM Daniel Boles via gtkmm-list <
gtkmm-list@gnome.org> wrote:

> color is a normal css property, not a widget style property. use the right
> api for that. there is get_property() and iirc maybe even get_color().
>
> don't use widget style properties in new code because they are removed in
> gtk 4.
> ___
> gtkmm-list mailing list
> gtkmm-list@gnome.org
> https://mail.gnome.org/mailman/listinfo/gtkmm-list
>

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Re: Fetching gtkmm custom css style properties

2020-02-18 Thread Daniel Boles via gtkmm-list

color is a normal css property, not a widget style property. use the right
api for that. there is get_property() and iirc maybe even get_color().

don't use widget style properties in new code because they are removed in
gtk 4.
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Re: Fetching gtkmm custom css style properties

Re: Fetching gtkmm custom css style properties

Re: Fetching gtkmm custom css style properties

Re: Fetching gtkmm custom css style properties

Re: Fetching gtkmm custom css style properties

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Re: Fetching gtkmm custom css style properties

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