Inkscape::UI::Widget::WidgetVfuncsClassInit Class Reference

A class you can inherit to access GTK4ʼs Widget.css_changed & .focus vfuncs, missing in gtkmm4. More...

#include <widget-vfuncs-class-init.h>

Inheritance diagram for Inkscape::UI::Widget::WidgetVfuncsClassInit:

Classes
struct	CFuncs
	Holds pointers to C vfunc implementations. More...

Protected Member Functions
	WidgetVfuncsClassInit ()
	~WidgetVfuncsClassInit () override
virtual void	css_changed (GtkCssStyleChange *change)
	Called after gtk_widget_css_changed(): when a CSS widget node is validated & style changed.
virtual std::optional< bool >	focus (Gtk::DirectionType direction)
	Called before gtk_widget_focus(): return true if moving in direction keeps focus w/in self, false if moving left focus outside widget, or nullopt for no decision & to call base vfunc.

Static Private Attributes
static CFuncs::CssChanged	_css_changed
static CFuncs::Focus	_focus
static constexpr CFuncs	cfuncs

Detailed Description

A class you can inherit to access GTK4ʼs Widget.css_changed & .focus vfuncs, missing in gtkmm4.

Use this if in gtkmm 3, you were connecting to ::style-updated or overriding on_style_updated() – or overriding on_focus() in a way that needs to change the result from that of the base vfunc See https://gitlab.gnome.org/GNOME/gtkmm/-/issues/147 The subclass must also inherit from Gtk::Widget or a subclass thereof.

Definition at line 29 of file widget-vfuncs-class-init.h.

Constructor & Destructor Documentation

WidgetVfuncsClassInit()

Inkscape::UI::Widget::WidgetVfuncsClassInit::WidgetVfuncsClassInit ( )

protected

Definition at line 85 of file widget-vfuncs-class-init.cpp.

~WidgetVfuncsClassInit()

Inkscape::UI::Widget::WidgetVfuncsClassInit::~WidgetVfuncsClassInit ( )

overrideprotected

Definition at line 94 of file widget-vfuncs-class-init.cpp.

Member Function Documentation

css_changed()

virtual void Inkscape::UI::Widget::WidgetVfuncsClassInit::css_changed ( GtkCssStyleChange *  change )

inlineprotectedvirtual

Called after gtk_widget_css_changed(): when a CSS widget node is validated & style changed.

Reimplemented in Inkscape::UI::Widget::Ruler, Inkscape::UI::Widget::GradientWithStops, Inkscape::UI::Widget::ImageProperties, Inkscape::UI::Dialog::FilterEffectsDialog::PrimitiveList, and Inkscape::UI::Widget::MarkerComboBox.

Definition at line 45 of file widget-vfuncs-class-init.h.

focus()

virtual std::optional< bool > Inkscape::UI::Widget::WidgetVfuncsClassInit::focus ( Gtk::DirectionType  direction )

inlineprotectedvirtual

Called before gtk_widget_focus(): return true if moving in direction keeps focus w/in self, false if moving left focus outside widget, or nullopt for no decision & to call base vfunc.

Reimplemented in Inkscape::UI::Widget::GradientWithStops, and Inkscape::UI::Widget::ColorWheelHSL.

Definition at line 49 of file widget-vfuncs-class-init.h.

Member Data Documentation

_css_changed

void Inkscape::UI::Widget::WidgetVfuncsClassInit::_css_changed

staticprivate

Definition at line 53 of file widget-vfuncs-class-init.h.

_focus

gboolean Inkscape::UI::Widget::WidgetVfuncsClassInit::_focus

staticprivate

Definition at line 54 of file widget-vfuncs-class-init.h.

cfuncs

constexpr CFuncs Inkscape::UI::Widget::WidgetVfuncsClassInit::cfuncs

staticconstexprprivate

Initial value:

= {
        &_css_changed,
        &_focus      ,
    }

Definition at line 56 of file widget-vfuncs-class-init.h.

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The documentation for this class was generated from the following files:

• /builds/inkscape/inkscape/src/ui/widget/widget-vfuncs-class-init.h
• /builds/inkscape/inkscape/src/ui/widget/widget-vfuncs-class-init.cpp