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gridview: Add API for setting number of columns

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The API isn't used yet.
This commit is contained in:
Benjamin Otte 2019-01-28 02:24:34 +01:00 committed by Matthias Clasen
parent 70aaecc937
commit 86a75abe51
3 changed files with 151 additions and 0 deletions
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4
docs/reference/gtk/gtk4-sections.txt
View File

@ -454,6 +454,10 @@ GtkGridView
gtk_grid_view_new
gtk_grid_view_set_model
gtk_grid_view_get_model
gtk_grid_view_set_max_columns
gtk_grid_view_get_max_columns
gtk_grid_view_set_min_columns
gtk_grid_view_get_min_columns
<SUBSECTION Standard>
GTK_GRID_VIEW
GTK_GRID_VIEW_CLASS

137
gtk/gtkgridview.c
View File

@ -24,6 +24,8 @@
#include "gtkintl.h"
#include "gtkprivate.h"
#define DEFAULT_MAX_COLUMNS (7)
/**
* SECTION:gtkgridview
* @title: GtkGridView
@ -38,11 +40,15 @@ struct _GtkGridView
GtkWidget parent_instance;
GListModel *model;
guint min_columns;
guint max_columns;
};
enum
{
PROP_0,
PROP_MAX_COLUMNS,
PROP_MIN_COLUMNS,
PROP_MODEL,
N_PROPS
@ -129,6 +135,14 @@ gtk_grid_view_get_property (GObject *object,
switch (property_id)
{
case PROP_MAX_COLUMNS:
g_value_set_uint (value, self->max_columns);
break;
case PROP_MIN_COLUMNS:
g_value_set_uint (value, self->min_columns);
break;
case PROP_MODEL:
g_value_set_object (value, self->model);
break;
@ -149,6 +163,14 @@ gtk_grid_view_set_property (GObject *object,
switch (property_id)
{
case PROP_MAX_COLUMNS:
gtk_grid_view_set_max_columns (self, g_value_get_uint (value));
break;
case PROP_MIN_COLUMNS:
gtk_grid_view_set_min_columns (self, g_value_get_uint (value));
break;
case PROP_MODEL:
gtk_grid_view_set_model (self, g_value_get_object (value));
break;
@ -172,6 +194,33 @@ gtk_grid_view_class_init (GtkGridViewClass *klass)
gobject_class->get_property = gtk_grid_view_get_property;
gobject_class->set_property = gtk_grid_view_set_property;
/**
* GtkGridView:max-columns:
*
* Maximum number of columns per row
*
* If this number is smaller than GtkGridView:min-columns, that value
* is used instead.
*/
properties[PROP_MAX_COLUMNS] =
g_param_spec_uint ("max-columns",
P_("Max columns"),
P_("Maximum number of columns per row"),
1, G_MAXUINT, DEFAULT_MAX_COLUMNS,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkGridView:min-columns:
*
* Minimum number of columns per row
*/
properties[PROP_MIN_COLUMNS] =
g_param_spec_uint ("min-columns",
P_("Min columns"),
P_("Minimum number of columns per row"),
1, G_MAXUINT, 1,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_STRINGS);
/**
* GtkGridView:model:
*
@ -192,6 +241,8 @@ gtk_grid_view_class_init (GtkGridViewClass *klass)
static void
gtk_grid_view_init (GtkGridView *self)
{
self->min_columns = 1;
self->max_columns = DEFAULT_MAX_COLUMNS;
}
/**
@ -258,3 +309,89 @@ gtk_grid_view_set_model (GtkGridView *self,
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MODEL]);
}
/**
* gtk_grid_view_get_max_columns:
* @self: a #GtkGridView
*
* Gets the maximum number of columns that the grid will use.
*
* Returns: The maximum number of columns
**/
guint
gtk_grid_view_get_max_columns (GtkGridView *self)
{
g_return_val_if_fail (GTK_IS_GRID_VIEW (self), DEFAULT_MAX_COLUMNS);
return self->max_columns;
}
/**
* gtk_grid_view_set_max_columns:
* @self: a #GtkGridView
* @max_columns: The maximum number of columns
*
* Sets the maximum number of columns to use. This number must be at least 1.
*
* If @max_columns is smaller than the minimum set via
* gtk_grid_view_set_min_columns(), that value is used instead.
**/
void
gtk_grid_view_set_max_columns (GtkGridView *self,
guint max_columns)
{
g_return_if_fail (GTK_IS_GRID_VIEW (self));
g_return_if_fail (max_columns > 0);
if (self->max_columns == max_columns)
return;
self->max_columns = max_columns;
gtk_widget_queue_resize (GTK_WIDGET (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MAX_COLUMNS]);
}
/**
* gtk_grid_view_get_min_columns:
* @self: a #GtkGridView
*
* Gets the minimum number of columns that the grid will use.
*
* Returns: The minimum number of columns
**/
guint
gtk_grid_view_get_min_columns (GtkGridView *self)
{
g_return_val_if_fail (GTK_IS_GRID_VIEW (self), 1);
return self->min_columns;
}
/**
* gtk_grid_view_set_min_columns:
* @self: a #GtkGridView
* @min_columns: The minimum number of columns
*
* Sets the minimum number of columns to use. This number must be at least 1.
*
* If @min_columns is smaller than the minimum set via
* gtk_grid_view_set_max_columns(), that value is ignored.
**/
void
gtk_grid_view_set_min_columns (GtkGridView *self,
guint min_columns)
{
g_return_if_fail (GTK_IS_GRID_VIEW (self));
g_return_if_fail (min_columns > 0);
if (self->min_columns == min_columns)
return;
self->min_columns = min_columns;
gtk_widget_queue_resize (GTK_WIDGET (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_MIN_COLUMNS]);
}

10
gtk/gtkgridview.h
View File

@ -41,6 +41,16 @@ GListModel * gtk_grid_view_get_model (GtkGridView
GDK_AVAILABLE_IN_ALL
void gtk_grid_view_set_model (GtkGridView *self,
GListModel *model);
GDK_AVAILABLE_IN_ALL
guint gtk_grid_view_get_min_columns (GtkGridView *self);
GDK_AVAILABLE_IN_ALL
void gtk_grid_view_set_min_columns (GtkGridView *self,
guint min_columns);
GDK_AVAILABLE_IN_ALL
guint gtk_grid_view_get_max_columns (GtkGridView *self);
GDK_AVAILABLE_IN_ALL
void gtk_grid_view_set_max_columns (GtkGridView *self,
guint max_columns);
G_END_DECLS