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GTK+ Reference Manual | ![]() |
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#include <gtk/gtk.h> GtkAspectFrame; GtkWidget* gtk_aspect_frame_new (const gchar *label, gfloat xalign, gfloat yalign, gfloat ratio, gboolean obey_child); void gtk_aspect_frame_set (GtkAspectFrame *aspect_frame, gfloat xalign, gfloat yalign, gfloat ratio, gboolean obey_child);
The GtkAspectFrame is useful when you want pack a widget so that it can resize but always retains the same aspect ratio. For instance, one might be drawing a small preview of a larger image. GtkAspectFrame derives from GtkFrame, so it can draw a label and a frame around the child. The frame will be "shrink-wrapped" to the size of the child.
typedef struct { GtkFrame frame; gfloat xalign; gfloat yalign; gfloat ratio; gboolean obey_child; GtkAllocation center_allocation; } GtkAspectFrame;
GtkWidget* gtk_aspect_frame_new (const gchar *label, gfloat xalign, gfloat yalign, gfloat ratio, gboolean obey_child);
Create a new GtkAspectFrame.
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Label text. |
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Horizontal alignment of the child within the allocation of the GtkAspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned) |
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Vertical alignment of the child within the allocation of the GtkAspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned) |
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The desired aspect ratio. |
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If TRUE , ratio is ignored, and the aspect
ratio is taken from the requistion of the child.
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Returns : |
the new GtkAspectFrame. |
void gtk_aspect_frame_set (GtkAspectFrame *aspect_frame, gfloat xalign, gfloat yalign, gfloat ratio, gboolean obey_child);
Set parameters for an existing GtkAspectFrame.
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a GtkAspectFrame |
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Horizontal alignment of the child within the allocation of the GtkAspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned) |
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Vertical alignment of the child within the allocation of the GtkAspectFrame. This ranges from 0.0 (left aligned) to 1.0 (right aligned) |
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The desired aspect ratio. |
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If TRUE , ratio is ignored, and the aspect
ratio is taken from the requistion of the child.
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