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gtkmm
3.9.10
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This interface can be implemented by widgets which allow the user to choose a color. More...

Public Member Functions | |
| virtual | ~ColorChooser () |
| GtkColorChooser* | gobj () |
| Provides access to the underlying C GObject. More... | |
| const GtkColorChooser* | gobj () const |
| Provides access to the underlying C GObject. More... | |
| Gdk::RGBA | get_rgba () const |
| void | set_rgba (const Gdk::RGBA& color) |
| Sets the color. More... | |
| bool | get_use_alpha () const |
| Returns whether the color chooser shows the alpha channel. More... | |
| void | set_use_alpha (bool use_alpha=true) |
| Sets whether or not the color chooser should use the alpha channel. More... | |
| void | add_palette (Orientation orientation, int colors_per_line, const std::vector< Gdk::RGBA >& colors) |
| Adds a palette to the color chooser. More... | |
| Glib::SignalProxy1< void, const Gdk::RGBA& > | signal_color_activated () |
| Glib::PropertyProxy< Gdk::RGBA > | property_rgba () |
| Current color, as a GdkRGBA. More... | |
| Glib::PropertyProxy_ReadOnly < Gdk::RGBA > | property_rgba () const |
| Current color, as a GdkRGBA. More... | |
| Glib::PropertyProxy< bool > | property_use_alpha () |
| Whether alpha should be shown. More... | |
| Glib::PropertyProxy_ReadOnly < bool > | property_use_alpha () const |
| Whether alpha should be shown. More... | |
Static Public Member Functions | |
| static void | add_interface (GType gtype_implementer) |
| static GType | get_type () |
| Get the GType for this class, for use with the underlying GObject type system. More... | |
Protected Member Functions | |
| ColorChooser () | |
| You should derive from this class to use it. More... | |
| virtual void | on_color_activated (const Gdk::RGBA& color) |
| This is a default handler for the signal signal_color_activated(). More... | |
Related Functions | |
(Note that these are not member functions.) | |
| Glib::RefPtr< Gtk::ColorChooser > | wrap (GtkColorChooser* object, bool take_copy=false) |
| A Glib::wrap() method for this object. More... | |
This interface can be implemented by widgets which allow the user to choose a color.
Depending on the situation, colors may be allowed to have alpha (translucency). The main widgets that implement this interface are ColorChooserWidget, ColorChooserDialog and ColorChooserButton.
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protected |
You should derive from this class to use it.
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virtual |
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static |
| void Gtk::ColorChooser::add_palette | ( | Orientation | orientation, |
| int | colors_per_line, | ||
| const std::vector< Gdk::RGBA >& | colors | ||
| ) |
Adds a palette to the color chooser.
If orientation is horizontal, the colors are grouped in rows, with colors_per_line colors in each row. If orientation is vertical, the colors are grouped in columns instead.
The default color palette of ColorChooserWidget has 27 colors, organized in columns of 3 colors. The default gray palette has 9 grays in a single row.
The layout of the color chooser widget works best when the palettes have 9-10 columns.
Calling this function for the first time has the side effect of removing the default color and gray palettes from the color chooser.
| orientation | ORIENTATION_HORIZONTAL if the palette should be displayed in rows, or ORIENTATION_VERTICAL for columns |
| colors_per_line | The number of colors to show in each row/column. |
| colors | The colors of the palette. |
| Gdk::RGBA Gtk::ColorChooser::get_rgba | ( | ) | const |
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static |
Get the GType for this class, for use with the underlying GObject type system.
| bool Gtk::ColorChooser::get_use_alpha | ( | ) | const |
Returns whether the color chooser shows the alpha channel.
true if the color chooser uses the alpha channel, false if not.
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inline |
Provides access to the underlying C GObject.
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inline |
Provides access to the underlying C GObject.
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protectedvirtual |
This is a default handler for the signal signal_color_activated().
| Glib::PropertyProxy< Gdk::RGBA > Gtk::ColorChooser::property_rgba | ( | ) |
Current color, as a GdkRGBA.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
| Glib::PropertyProxy_ReadOnly< Gdk::RGBA > Gtk::ColorChooser::property_rgba | ( | ) | const |
Current color, as a GdkRGBA.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
| Glib::PropertyProxy< bool > Gtk::ColorChooser::property_use_alpha | ( | ) |
Whether alpha should be shown.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
| Glib::PropertyProxy_ReadOnly< bool > Gtk::ColorChooser::property_use_alpha | ( | ) | const |
Whether alpha should be shown.
You rarely need to use properties because there are get_ and set_ methods for almost all of them.
| void Gtk::ColorChooser::set_rgba | ( | const Gdk::RGBA& | color | ) |
| void Gtk::ColorChooser::set_use_alpha | ( | bool | use_alpha = true | ) |
Sets whether or not the color chooser should use the alpha channel.
| use_alpha | true if color chooser should use alpha channel, false if not. |
| Glib::SignalProxy1< void,const Gdk::RGBA& > Gtk::ColorChooser::signal_color_activated | ( | ) |
void on_my_color_activated(const Gdk::RGBA& color)Emitted when a color is activated from the color chooser. This usually happens when the user clicks a color swatch, or a color is selected and the user presses one of the keys Space, Shift+Space, Return or Enter.
| color | The color. |
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related |
A Glib::wrap() method for this object.
| object | The C instance. |
| take_copy | False if the result should take ownership of the C instance. True if it should take a new copy or ref. |
1.8.3.1