Class
GtkCellAreaContext
Description [src]
class Gtk.CellAreaContext : GObject.Object
{
/* No available fields */
}The GtkCellAreaContext object is created by a given GtkCellArea
implementation via its GtkCellAreaClass.create_context() virtual
method and is used to store cell sizes and alignments for a series of
GtkTreeModel rows that are requested and rendered in the same context.
GtkCellLayout widgets can create any number of contexts in which to
request and render groups of data rows. However, it’s important that the
same context which was used to request sizes for a given GtkTreeModel
row also be used for the same row when calling other GtkCellArea APIs
such as gtk_cell_area_render() and gtk_cell_area_event().
Instance methods
gtk_cell_area_context_allocate
Allocates a width and/or a height for all rows which are to be
rendered with context.
gtk_cell_area_context_get_preferred_height
Gets the accumulative preferred height for all rows which have been requested with this context.
since: 3.0
gtk_cell_area_context_get_preferred_height_for_width
Gets the accumulative preferred height for width for all rows
which have been requested for the same said width with this context.
since: 3.0
gtk_cell_area_context_get_preferred_width
Gets the accumulative preferred width for all rows which have been requested with this context.
since: 3.0
gtk_cell_area_context_get_preferred_width_for_height
Gets the accumulative preferred width for height for all rows which
have been requested for the same said height with this context.
since: 3.0
gtk_cell_area_context_push_preferred_height
Causes the minimum and/or natural height to grow if the new proposed sizes exceed the current minimum and natural height.
since: 3.0
gtk_cell_area_context_push_preferred_width
Causes the minimum and/or natural width to grow if the new proposed sizes exceed the current minimum and natural width.
since: 3.0
Properties
Gtk.CellAreaContext:minimum-height
The minimum height for the GtkCellArea in this context
for all GtkTreeModel rows that this context was requested
for using gtk_cell_area_get_preferred_height().
since: 3.0
Gtk.CellAreaContext:minimum-width
The minimum width for the GtkCellArea in this context
for all GtkTreeModel rows that this context was requested
for using gtk_cell_area_get_preferred_width().
since: 3.0
Gtk.CellAreaContext:natural-height
The natural height for the GtkCellArea in this context
for all GtkTreeModel rows that this context was requested
for using gtk_cell_area_get_preferred_height().
since: 3.0
Gtk.CellAreaContext:natural-width
The natural width for the GtkCellArea in this context
for all GtkTreeModel rows that this context was requested
for using gtk_cell_area_get_preferred_width().
since: 3.0
Signals
Signals inherited from GObject (1)
GObject::notify
The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.
Class structure
struct GtkCellAreaContextClass {
void (* allocate) (
GtkCellAreaContext* context,
gint width,
gint height
);
void (* reset) (
GtkCellAreaContext* context
);
void (* get_preferred_height_for_width) (
GtkCellAreaContext* context,
gint width,
gint* minimum_height,
gint* natural_height
);
void (* get_preferred_width_for_height) (
GtkCellAreaContext* context,
gint height,
gint* minimum_width,
gint* natural_width
);
void (* _gtk_reserved1) (
void
);
void (* _gtk_reserved2) (
void
);
void (* _gtk_reserved3) (
void
);
void (* _gtk_reserved4) (
void
);
void (* _gtk_reserved5) (
void
);
void (* _gtk_reserved6) (
void
);
}No description available.
Class members
allocate: void (* allocate) ( GtkCellAreaContext* context, gint width, gint height )This tells the context that an allocation width or height (or both) have been decided for a group of rows. The context should store any allocations for internally aligned cells at this point so that they dont need to be recalculated at
gtk_cell_area_render()time.reset: void (* reset) ( GtkCellAreaContext* context )Clear any previously stored information about requested and allocated sizes for the context.
get_preferred_height_for_width: void (* get_preferred_height_for_width) ( GtkCellAreaContext* context, gint width, gint* minimum_height, gint* natural_height )Returns the aligned height for the given width that context must store while collecting sizes for it’s rows.
get_preferred_width_for_height: void (* get_preferred_width_for_height) ( GtkCellAreaContext* context, gint height, gint* minimum_width, gint* natural_width )Returns the aligned width for the given height that context must store while collecting sizes for it’s rows.
_gtk_reserved1: void (* _gtk_reserved1) ( void )No description available.
_gtk_reserved2: void (* _gtk_reserved2) ( void )No description available.
_gtk_reserved3: void (* _gtk_reserved3) ( void )No description available.
_gtk_reserved4: void (* _gtk_reserved4) ( void )No description available.
_gtk_reserved5: void (* _gtk_reserved5) ( void )No description available.
_gtk_reserved6: void (* _gtk_reserved6) ( void )No description available.
Virtual methods
Gtk.CellAreaContextClass.allocate
Allocates a width and/or a height for all rows which are to be
rendered with context.
Gtk.CellAreaContextClass.get_preferred_height_for_width
Gets the accumulative preferred height for width for all rows
which have been requested for the same said width with this context.
since: 3.0
Gtk.CellAreaContextClass.get_preferred_width_for_height
Gets the accumulative preferred width for height for all rows which
have been requested for the same said height with this context.
since: 3.0