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Normally, a widget is allocated at least as much size as it requests, and, most widgets expand to fill any extra allocated space, but sometimes this behavior is not desired. The alignment widget allows the programmer to specify how a widget should expand and position itself to fill the area it is allocated.
It has four settings: xscale, yscale, xalign, and yalign: The scale settings specify how much the child widget should expand to fill the space allocated to the Gtk::Alignment. The values can range from 0 (meaning the child doesn't expand at all) to 1 (meaning the child expands to fill all of the available space). The align settings place the child widget within the available area. The values range from 0 (top or left) to 1 (bottom or right). Of course, if the scale settings are both set to 1, the alignment settings have no effect.
Public Member Functions | |
Alignment (AlignmentEnum xalign, AlignmentEnum yalign=Gtk::ALIGN_CENTER, float xscale=1.0, float yscale=1.0) | |
Constructor to create an Alignment object. | |
Alignment (float xalign=0.5, float yalign=0.5, float xscale=1.0, float yscale=1.0) | |
Constructor to create an Alignment object. | |
void | get_padding (guint& padding_top, guint& padding_bottom, guint& padding_left, guint& padding_right) |
Gets the padding on the different sides of the widget. | |
const GtkAlignment* | gobj () const |
Provides access to the underlying C GtkObject. | |
GtkAlignment* | gobj () |
Provides access to the underlying C GtkObject. | |
Glib::PropertyProxy_ReadOnly< guint > | property_bottom_padding () const |
The padding to insert at the bottom of the widget. | |
Glib::PropertyProxy<guint> | property_bottom_padding () |
The padding to insert at the bottom of the widget. | |
Glib::PropertyProxy_ReadOnly< guint > | property_left_padding () const |
The padding to insert at the left of the widget. | |
Glib::PropertyProxy<guint> | property_left_padding () |
The padding to insert at the left of the widget. | |
Glib::PropertyProxy_ReadOnly< guint > | property_right_padding () const |
The padding to insert at the right of the widget. | |
Glib::PropertyProxy<guint> | property_right_padding () |
The padding to insert at the right of the widget. | |
Glib::PropertyProxy_ReadOnly< guint > | property_top_padding () const |
The padding to insert at the top of the widget. | |
Glib::PropertyProxy<guint> | property_top_padding () |
The padding to insert at the top of the widget. | |
Glib::PropertyProxy_ReadOnly< float > | property_xalign () const |
Horizontal position of child in available space. | |
Glib::PropertyProxy<float> | property_xalign () |
Horizontal position of child in available space. | |
Glib::PropertyProxy_ReadOnly< float > | property_xscale () const |
If available horizontal space is bigger than needed for the child. | |
Glib::PropertyProxy<float> | property_xscale () |
If available horizontal space is bigger than needed for the child. | |
Glib::PropertyProxy_ReadOnly< float > | property_yalign () const |
Vertical position of child in available space. | |
Glib::PropertyProxy<float> | property_yalign () |
Vertical position of child in available space. | |
Glib::PropertyProxy_ReadOnly< float > | property_yscale () const |
If available vertical space is bigger than needed for the child. | |
Glib::PropertyProxy<float> | property_yscale () |
If available vertical space is bigger than needed for the child. | |
void | set (AlignmentEnum xalign, AlignmentEnum yalign=Gtk::ALIGN_CENTER, float xscale=1.0, float yscale=1.0) |
Sets the Alignment values. | |
void | set (float xalign=0.5, float yalign=0.5, float xscale=1.0, float yscale=1.0) |
Sets the Alignment values. | |
void | set_padding (guint padding_top, guint padding_bottom, guint padding_left, guint padding_right) |
Sets the padding on the different sides of the widget. | |
virtual | ~Alignment () |
Related Functions | |
(Note that these are not member functions.) | |
Gtk::Alignment* | wrap (GtkAlignment* object, bool take_copy=false) |
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Constructor to create an Alignment object.
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Constructor to create an Alignment object.
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Gets the padding on the different sides of the widget. See set_padding().
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Provides access to the underlying C GtkObject.
Reimplemented from Gtk::Bin. |
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Provides access to the underlying C GtkObject.
Reimplemented from Gtk::Bin. |
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The padding to insert at the bottom of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the bottom of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the left of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the left of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the right of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the right of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the top of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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The padding to insert at the top of the widget. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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Horizontal position of child in available space. 0.0 is left aligned You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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Horizontal position of child in available space. 0.0 is left aligned You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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If available horizontal space is bigger than needed for the child. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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If available horizontal space is bigger than needed for the child. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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Vertical position of child in available space. 0.0 is top aligned You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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Vertical position of child in available space. 0.0 is top aligned You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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If available vertical space is bigger than needed for the child. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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If available vertical space is bigger than needed for the child. You rarely need to use properties because there are get_ and set_ methods for almost all of them.
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Sets the Alignment values.
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Sets the Alignment values.
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Sets the padding on the different sides of the widget. The padding adds blank space to the sides of the widget. For instance, this can be used to indent the child widget towards the right by adding padding on the left.
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