enum Gtk::Align

Overview

Controls how a widget deals with extra space in a single dimension.

Alignment only matters if the widget receives a “too large” allocation, for example if you packed the widget with the Gtk::Widget#hexpand property inside a #Box, then the widget might get extra space. If you have for example a 16x16 icon inside a 32x32 space, the icon could be scaled and stretched, it could be centered, or it could be positioned to one side of the space.

Note that in horizontal context GTK_ALIGN_START and GTK_ALIGN_END are interpreted relative to text direction.

Baseline support is optional for containers and widgets, and is only available for vertical alignment. GTK_ALIGN_BASELINE_CENTER and GTK_ALIGN_BASELINE_FILL are treated similar to GTK_ALIGN_CENTER and GTK_ALIGN_FILL, except that it positions the widget to line up the baselines, where that is supported.

Defined in:

lib/gi-crystal/src/auto/gtk-4.0/gtk.cr

Enum Members

Fill = 0_u32

stretch to fill all space if possible, center if no meaningful way to stretch

Start = 1_u32

snap to left or top side, leaving space on right or bottom

End = 2_u32

snap to right or bottom side, leaving space on left or top

Center = 3_u32

center natural width of widget inside the allocation

BaselineFill = 4_u32

a different name for GTK_ALIGN_BASELINE.

Baseline = 4_u32

align the widget according to the baseline.

BaselineCenter = 5_u32

stretch to fill all space, but align the baseline.

Class Method Summary

• .g_type : UInt64

  Returns the type id (GType) registered in GLib type system.

Instance Method Summary

• #baseline?
• #baseline_center?
• #baseline_fill?
• #center?
• #end?
• #fill?
• #start?

Class Method Detail

Instance Method Detail