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treeexpander: Add indent-for-depth property

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When set to TRUE, indent-for-depth indents each level of
depth with an additional indent
This commit is contained in:
Corey Berla 2022-11-26 21:28:22 -08:00
parent 2b578a24e4
commit 648b38761c
2 changed files with 72 additions and 1 deletions
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68
gtk/gtktreeexpander.c
View File

@ -93,6 +93,7 @@ struct _GtkTreeExpander
guint notify_handler;
gboolean hide_expander;
gboolean indent_for_depth;
gboolean indent_for_icon;
guint expand_timer;
@ -103,6 +104,7 @@ enum
PROP_0,
PROP_CHILD,
PROP_HIDE_EXPANDER,
PROP_INDENT_FOR_DEPTH,
PROP_ITEM,
PROP_LIST_ROW,
PROP_INDENT_FOR_ICON,
@ -178,7 +180,7 @@ gtk_tree_expander_update_for_list_row (GtkTreeExpander *self)
GtkWidget *child;
guint i, depth;
depth = gtk_tree_list_row_get_depth (self->list_row);
depth = self->indent_for_depth ? gtk_tree_list_row_get_depth (self->list_row) : 0;
if (gtk_tree_list_row_is_expandable (self->list_row) && !self->hide_expander)
{
if (self->expander_icon == NULL)
@ -407,6 +409,10 @@ gtk_tree_expander_get_property (GObject *object,
g_value_set_boolean (value, gtk_tree_expander_get_hide_expander (self));
break;
case PROP_INDENT_FOR_DEPTH:
g_value_set_boolean (value, gtk_tree_expander_get_indent_for_depth (self));
break;
case PROP_ITEM:
g_value_take_object (value, gtk_tree_expander_get_item (self));
break;
@ -443,6 +449,10 @@ gtk_tree_expander_set_property (GObject *object,
gtk_tree_expander_set_hide_expander (self, g_value_get_boolean (value));
break;
case PROP_INDENT_FOR_DEPTH:
gtk_tree_expander_set_indent_for_depth (self, g_value_get_boolean (value));
break;
case PROP_LIST_ROW:
gtk_tree_expander_set_list_row (self, g_value_get_object (value));
break;
@ -566,6 +576,18 @@ gtk_tree_expander_class_init (GtkTreeExpanderClass *klass)
FALSE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeExpander:indent-for-depth: (attributes org.gtk.Property.get=gtk_tree_expander_get_indent_for_depth org.gtk.Property.set=gtk_tree_expander_set_indent_for_depth)
*
* TreeExpander indents the child according to its depth.
*
* Since: 4.10
*/
properties[PROP_INDENT_FOR_DEPTH] =
g_param_spec_boolean ("indent-for-depth", NULL, NULL,
TRUE,
G_PARAM_READWRITE | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkTreeExpander:item: (attributes org.gtk.Property.get=gtk_tree_expander_get_item)
*
@ -731,6 +753,7 @@ gtk_tree_expander_init (GtkTreeExpander *self)
gtk_widget_set_focusable (GTK_WIDGET (self), TRUE);
self->indent_for_icon = TRUE;
self->indent_for_depth = TRUE;
controller = gtk_drop_controller_motion_new ();
g_signal_connect (controller, "enter", G_CALLBACK (gtk_tree_expander_drag_enter), self);
@ -883,6 +906,49 @@ gtk_tree_expander_set_list_row (GtkTreeExpander *self,
g_object_thaw_notify (G_OBJECT (self));
}
/**
* gtk_tree_expander_get_indent_for_depth: (attributes org.gtk.Method.get_property=indent-for-depth)
* @self: a `GtkTreeExpander`
*
* TreeExpander indents each level of depth with an additional indent.
*
* Returns: TRUE if the child should be indented . Otherwise FALSE.
*
* Since: 4.10
*/
gboolean
gtk_tree_expander_get_indent_for_depth (GtkTreeExpander *self)
{
g_return_val_if_fail (GTK_IS_TREE_EXPANDER (self), FALSE);
return self->indent_for_depth;
}
/**
* gtk_tree_expander_set_indent_for_depth: (attributes org.gtk.Method.set_property=indent-for-depth)
* @self: a `GtkTreeExpander` widget
* @indent_for_depth: TRUE if the child should be indented. Otherwise FALSE.
*
* Sets if the TreeExpander should indent the child according to its depth.
*
* Since: 4.10
*/
void
gtk_tree_expander_set_indent_for_depth (GtkTreeExpander *self,
gboolean indent_for_depth)
{
g_return_if_fail (GTK_IS_TREE_EXPANDER (self));
if (indent_for_depth == self->indent_for_depth)
return;
self->indent_for_depth = indent_for_depth;
gtk_tree_expander_update_for_list_row (self);
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_INDENT_FOR_DEPTH]);
}
/**
* gtk_tree_expander_get_indent_for_icon: (attributes org.gtk.Method.get_property=indent-for-icon)
* @self: a `GtkTreeExpander`

5
gtk/gtktreeexpander.h
View File

@ -50,6 +50,11 @@ GtkTreeListRow * gtk_tree_expander_get_list_row (GtkTreeExpander
GDK_AVAILABLE_IN_ALL
void gtk_tree_expander_set_list_row (GtkTreeExpander *self,
GtkTreeListRow *list_row);
GDK_AVAILABLE_IN_4_10
gboolean gtk_tree_expander_get_indent_for_depth (GtkTreeExpander *self);
GDK_AVAILABLE_IN_4_10
void gtk_tree_expander_set_indent_for_depth (GtkTreeExpander *self,
gboolean indent_for_depth);
GDK_AVAILABLE_IN_4_6
gboolean gtk_tree_expander_get_indent_for_icon (GtkTreeExpander *self);
GDK_AVAILABLE_IN_4_6