[gtk/wip/otte/listview: 40/133] listitemmanager: Simplify
- From: Benjamin Otte <otte src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gtk/wip/otte/listview: 40/133] listitemmanager: Simplify
- Date: Wed, 11 Dec 2019 04:03:50 +0000 (UTC)
commit 4713655c1552fd8e646e54e03522c0160524bf9b
Author: Benjamin Otte <otte redhat com>
Date: Fri Feb 22 03:05:54 2019 +0100
listitemmanager: Simplify
Remove a bunch of API from the headers that isn't used anymore and then
refactor code to not call it anymore.
In particular, get rid of GtkListItemManagerChange and replace it with a
GHashTable.
gtk/gtklistitemmanager.c | 195 ++++++++++++----------------------------
gtk/gtklistitemmanagerprivate.h | 28 +-----
2 files changed, 60 insertions(+), 163 deletions(-)
---
diff --git a/gtk/gtklistitemmanager.c b/gtk/gtklistitemmanager.c
index 6cadec777b..ac922cc709 100644
--- a/gtk/gtklistitemmanager.c
+++ b/gtk/gtklistitemmanager.c
@@ -48,11 +48,24 @@ struct _GtkListItemManagerClass
GObjectClass parent_class;
};
-struct _GtkListItemManagerChange
-{
- GHashTable *items;
-};
-
+static GtkWidget * gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
+ guint position,
+ GtkWidget *prev_sibling);
+static GtkWidget * gtk_list_item_manager_try_reacquire_list_item
+ (GtkListItemManager *self,
+ GHashTable *change,
+ guint position,
+ GtkWidget *prev_sibling);
+static void gtk_list_item_manager_update_list_item (GtkListItemManager *self,
+ GtkWidget *item,
+ guint position);
+static void gtk_list_item_manager_move_list_item (GtkListItemManager *self,
+ GtkWidget *list_item,
+ guint position,
+ GtkWidget *prev_sibling);
+static void gtk_list_item_manager_release_list_item (GtkListItemManager *self,
+ GHashTable *change,
+ GtkWidget *widget);
G_DEFINE_TYPE (GtkListItemManager, gtk_list_item_manager, G_TYPE_OBJECT)
void
@@ -227,10 +240,10 @@ gtk_list_item_manager_get_item_augment (GtkListItemManager *self,
}
static void
-gtk_list_item_manager_remove_items (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- guint position,
- guint n_items)
+gtk_list_item_manager_remove_items (GtkListItemManager *self,
+ GHashTable *change,
+ guint position,
+ guint n_items)
{
GtkListItemManagerItem *item;
@@ -371,9 +384,9 @@ gtk_list_item_manager_release_items (GtkListItemManager *self,
}
static void
-gtk_list_item_manager_ensure_items (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- guint update_start)
+gtk_list_item_manager_ensure_items (GtkListItemManager *self,
+ GHashTable *change,
+ guint update_start)
{
GtkListItemManagerItem *item, *new_item;
guint i, offset;
@@ -447,11 +460,11 @@ gtk_list_item_manager_ensure_items (GtkListItemManager *self,
}
void
-gtk_list_item_manager_set_anchor (GtkListItemManager *self,
- guint position,
- double align,
- GtkListItemManagerChange *change,
- guint update_start)
+gtk_list_item_manager_set_anchor (GtkListItemManager *self,
+ guint position,
+ double align,
+ GHashTable *change,
+ guint update_start)
{
GtkListItemManagerItem *item;
guint items_before, items_after, total_items, n_items;
@@ -494,15 +507,17 @@ gtk_list_item_manager_model_items_changed_cb (GListModel *model,
guint added,
GtkListItemManager *self)
{
- GtkListItemManagerChange *change;
+ GHashTable *change;
+ GHashTableIter iter;
+ gpointer list_item;
- change = gtk_list_item_manager_begin_change (self);
+ change = g_hash_table_new (g_direct_hash, g_direct_equal);
gtk_list_item_manager_remove_items (self, change, position, removed);
gtk_list_item_manager_add_items (self, position, added);
/* The anchor was removed, but it may just have moved to a different position */
- if (self->anchor && gtk_list_item_manager_change_contains (change, self->anchor))
+ if (self->anchor && g_hash_table_lookup (change, gtk_list_item_get_item (GTK_LIST_ITEM (self->anchor))) ==
self->anchor)
{
/* The anchor was removed, do a more expensive rebuild trying to find if
* the anchor maybe got readded somewhere else */
@@ -600,7 +615,16 @@ gtk_list_item_manager_model_items_changed_cb (GListModel *model,
gtk_list_item_manager_set_anchor (self, anchor_pos, self->anchor_align, change, position);
}
- gtk_list_item_manager_end_change (self, change);
+ g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
+ g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
+
+ g_hash_table_iter_init (&iter, change);
+ while (g_hash_table_iter_next (&iter, NULL, &list_item))
+ {
+ gtk_list_item_manager_release_list_item (self, NULL, list_item);
+ }
+
+ g_hash_table_unref (change);
}
static void
@@ -767,107 +791,6 @@ gtk_list_item_manager_get_model (GtkListItemManager *self)
return self->model;
}
-#if 0
-/*
- * gtk_list_item_manager_get_size:
- * @self: a #GtkListItemManager
- *
- * Queries the number of widgets currently handled by @self.
- *
- * This includes both widgets that have been acquired and
- * those currently waiting to be used again.
- *
- * Returns: Number of widgets handled by @self
- **/
-guint
-gtk_list_item_manager_get_size (GtkListItemManager *self)
-{
- return g_hash_table_size (self->pool);
-}
-#endif
-
-/*
- * gtk_list_item_manager_begin_change:
- * @self: a #GtkListItemManager
- *
- * Begins a change operation in response to a model's items-changed
- * signal.
- * During an ongoing change operation, list items will not be discarded
- * when released but will be kept around in anticipation of them being
- * added back in a different posiion later.
- *
- * Once it is known that no more list items will be reused,
- * gtk_list_item_manager_end_change() should be called. This should happen
- * as early as possible, so the list items held for the change can be
- * reqcquired.
- *
- * Returns: The object to use for this change
- **/
-GtkListItemManagerChange *
-gtk_list_item_manager_begin_change (GtkListItemManager *self)
-{
- GtkListItemManagerChange *change;
-
- g_return_val_if_fail (GTK_IS_LIST_ITEM_MANAGER (self), NULL);
-
- change = g_slice_new (GtkListItemManagerChange);
- change->items = g_hash_table_new (g_direct_hash, g_direct_equal);
-
- return change;
-}
-
-/*
- * gtk_list_item_manager_end_change:
- * @self: a #GtkListItemManager
- * @change: a change
- *
- * Ends a change operation begun with gtk_list_item_manager_begin_change()
- * and releases all list items still cached.
- **/
-void
-gtk_list_item_manager_end_change (GtkListItemManager *self,
- GtkListItemManagerChange *change)
-{
- GHashTableIter iter;
- gpointer list_item;
-
- g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
- g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
-
- g_hash_table_iter_init (&iter, change->items);
- while (g_hash_table_iter_next (&iter, NULL, &list_item))
- {
- gtk_list_item_manager_release_list_item (self, NULL, list_item);
- }
-
- g_hash_table_unref (change->items);
- g_slice_free (GtkListItemManagerChange, change);
-}
-
-/*
- * gtk_list_item_manager_change_contains:
- * @change: a #GtkListItemManagerChange
- * @list_item: The item that may have been released into this change set
- *
- * Checks if @list_item has been released as part of @change but not been
- * reacquired yet.
- *
- * This is useful to test before calling gtk_list_item_manager_end_change()
- * if special actions need to be performed when important list items - like
- * the focused item - are about to be deleted.
- *
- * Returns: %TRUE if the item is part of this change
- **/
-gboolean
-gtk_list_item_manager_change_contains (GtkListItemManagerChange *change,
- GtkWidget *list_item)
-{
- g_return_val_if_fail (change != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_LIST_ITEM (list_item), FALSE);
-
- return g_hash_table_lookup (change->items, gtk_list_item_get_item (GTK_LIST_ITEM (list_item))) ==
list_item;
-}
-
/*
* gtk_list_item_manager_acquire_list_item:
* @self: a #GtkListItemManager
@@ -886,7 +809,7 @@ gtk_list_item_manager_change_contains (GtkListItemManagerChange *change,
*
* Returns: a properly setup widget to use in @position
**/
-GtkWidget *
+static GtkWidget *
gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
guint position,
GtkWidget *prev_sibling)
@@ -925,11 +848,11 @@ gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
* Returns: (nullable): a properly setup widget to use in @position or %NULL if
* no item for reuse existed
**/
-GtkWidget *
-gtk_list_item_manager_try_reacquire_list_item (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- guint position,
- GtkWidget *prev_sibling)
+static GtkWidget *
+gtk_list_item_manager_try_reacquire_list_item (GtkListItemManager *self,
+ GHashTable *change,
+ guint position,
+ GtkWidget *prev_sibling)
{
GtkListItem *result;
gpointer item;
@@ -939,7 +862,7 @@ gtk_list_item_manager_try_reacquire_list_item (GtkListItemManager *self,
/* XXX: can we avoid temporarily allocating items on failure? */
item = g_list_model_get_item (G_LIST_MODEL (self->model), position);
- if (g_hash_table_steal_extended (change->items, item, NULL, (gpointer *) &result))
+ if (g_hash_table_steal_extended (change, item, NULL, (gpointer *) &result))
{
gtk_list_item_factory_update (self->factory, result, position, FALSE);
gtk_widget_insert_after (GTK_WIDGET (result), self->widget, prev_sibling);
@@ -968,7 +891,7 @@ gtk_list_item_manager_try_reacquire_list_item (GtkListItemManager *self,
*
* This is most useful when scrolling.
**/
-void
+static void
gtk_list_item_manager_move_list_item (GtkListItemManager *self,
GtkWidget *list_item,
guint position,
@@ -993,7 +916,7 @@ gtk_list_item_manager_move_list_item (GtkListItemManager *self,
* Updates the position of the given @item. This function must be called whenever
* the position of an item changes, like when new items are added before it.
**/
-void
+static void
gtk_list_item_manager_update_list_item (GtkListItemManager *self,
GtkWidget *item,
guint position)
@@ -1018,17 +941,17 @@ gtk_list_item_manager_update_list_item (GtkListItemManager *self,
* Releases an item that was previously acquired via
* gtk_list_item_manager_acquire_list_item() and is no longer in use.
**/
-void
-gtk_list_item_manager_release_list_item (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- GtkWidget *item)
+static void
+gtk_list_item_manager_release_list_item (GtkListItemManager *self,
+ GHashTable *change,
+ GtkWidget *item)
{
g_return_if_fail (GTK_IS_LIST_ITEM_MANAGER (self));
g_return_if_fail (GTK_IS_LIST_ITEM (item));
if (change != NULL)
{
- if (g_hash_table_insert (change->items, gtk_list_item_get_item (GTK_LIST_ITEM (item)), item))
+ if (g_hash_table_insert (change, gtk_list_item_get_item (GTK_LIST_ITEM (item)), item))
return;
g_warning ("FIXME: Handle the same item multiple times in the list.\nLars says this totally should not
happen, but here we are.");
diff --git a/gtk/gtklistitemmanagerprivate.h b/gtk/gtklistitemmanagerprivate.h
index 9e1ebab073..9a506c7573 100644
--- a/gtk/gtklistitemmanagerprivate.h
+++ b/gtk/gtklistitemmanagerprivate.h
@@ -38,7 +38,6 @@ G_BEGIN_DECLS
typedef struct _GtkListItemManager GtkListItemManager;
typedef struct _GtkListItemManagerClass GtkListItemManagerClass;
-typedef struct _GtkListItemManagerChange GtkListItemManagerChange;
typedef struct _GtkListItemManagerItem GtkListItemManagerItem; /* sorry */
typedef struct _GtkListItemManagerItemAugment GtkListItemManagerItemAugment;
@@ -90,36 +89,11 @@ guint gtk_list_item_manager_get_size (GtkListItemMana
void gtk_list_item_manager_set_anchor (GtkListItemManager *self,
guint position,
double align,
- GtkListItemManagerChange *change,
+ GHashTable *change,
guint update_start);
guint gtk_list_item_manager_get_anchor (GtkListItemManager *self,
double *align);
-GtkListItemManagerChange *
- gtk_list_item_manager_begin_change (GtkListItemManager *self);
-void gtk_list_item_manager_end_change (GtkListItemManager *self,
- GtkListItemManagerChange *change);
-gboolean gtk_list_item_manager_change_contains (GtkListItemManagerChange *change,
- GtkWidget *list_item);
-
-GtkWidget * gtk_list_item_manager_acquire_list_item (GtkListItemManager *self,
- guint position,
- GtkWidget *prev_sibling);
-GtkWidget * gtk_list_item_manager_try_reacquire_list_item
- (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- guint position,
- GtkWidget *prev_sibling);
-void gtk_list_item_manager_update_list_item (GtkListItemManager *self,
- GtkWidget *item,
- guint position);
-void gtk_list_item_manager_move_list_item (GtkListItemManager *self,
- GtkWidget *list_item,
- guint position,
- GtkWidget *prev_sibling);
-void gtk_list_item_manager_release_list_item (GtkListItemManager *self,
- GtkListItemManagerChange *change,
- GtkWidget *widget);
G_END_DECLS
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