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authorMilan Crha <mcrha@redhat.com>2010-10-20 19:31:46 +0800
committerMilan Crha <mcrha@redhat.com>2010-10-20 19:34:53 +0800
commit7a07c80767950787601924b2b8091c8a0cb3371a (patch)
treeeaf24f2ab4aca5795ebac2353e7dbde991d962c9 /widgets/text
parentb1f84e3c36a3e64caa8eac4b7f88252225cbf405 (diff)
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Bug #630504 - Precache collate keys before sorting in EReflowModel
Diffstat (limited to 'widgets/text')
-rw-r--r--widgets/text/e-reflow-model.c30
-rw-r--r--widgets/text/e-reflow-model.h7
-rw-r--r--widgets/text/e-reflow.c13
3 files changed, 43 insertions, 7 deletions
diff --git a/widgets/text/e-reflow-model.c b/widgets/text/e-reflow-model.c
index 6f8223ae9a..d7a5ffec48 100644
--- a/widgets/text/e-reflow-model.c
+++ b/widgets/text/e-reflow-model.c
@@ -109,24 +109,50 @@ e_reflow_model_incarnate (EReflowModel *e_reflow_model, gint n, GnomeCanvasGroup
}
/**
+ * e_reflow_model_create_cmp_cache:
+ * @e_reflow_model: The e-reflow-model to operate on
+ *
+ * Creates a compare cache for quicker sorting. The sorting function
+ * may not depend on the cache, but it should benefit from it if available.
+ *
+ * Returns: Newly created GHashTable with cached compare values. This will be
+ * automatically freed with g_hash_table_destroy() when no longer needed.
+ **/
+GHashTable *
+e_reflow_model_create_cmp_cache (EReflowModel *e_reflow_model)
+{
+ g_return_val_if_fail (e_reflow_model != NULL, NULL);
+ g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), NULL);
+
+ if (!E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->create_cmp_cache)
+ return NULL;
+
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->create_cmp_cache (e_reflow_model);
+}
+
+/**
* e_reflow_model_compare:
* @e_reflow_model: The e-reflow-model to operate on
* @n1: The first item to compare
* @n2: The second item to compare
+ * @cmp_cache: #GHashTable of cached compare values, created by
+ * e_reflow_model_create_cmp_cache(). This can be NULL, when
+ * caching is not available, even when @e_reflow_model defines
+ * the create_cmp_cache function.
*
* Compares item n1 and item n2 to see which should come first.
*
* Returns: strcmp like semantics for the comparison value.
*/
gint
-e_reflow_model_compare (EReflowModel *e_reflow_model, gint n1, gint n2)
+e_reflow_model_compare (EReflowModel *e_reflow_model, gint n1, gint n2, GHashTable *cmp_cache)
{
#if 0
g_return_val_if_fail (e_reflow_model != NULL, 0);
g_return_val_if_fail (E_IS_REFLOW_MODEL (e_reflow_model), 0);
#endif
- return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->compare (e_reflow_model, n1, n2);
+ return E_REFLOW_MODEL_GET_CLASS (e_reflow_model)->compare (e_reflow_model, n1, n2, cmp_cache);
}
/**
diff --git a/widgets/text/e-reflow-model.h b/widgets/text/e-reflow-model.h
index ebbf3c1f75..f6f096df0a 100644
--- a/widgets/text/e-reflow-model.h
+++ b/widgets/text/e-reflow-model.h
@@ -51,7 +51,8 @@ typedef struct {
gint (*count) (EReflowModel *etm);
gint (*height) (EReflowModel *etm, gint n, GnomeCanvasGroup *parent);
GnomeCanvasItem *(*incarnate) (EReflowModel *etm, gint n, GnomeCanvasGroup *parent);
- gint (*compare) (EReflowModel *etm, gint n1, gint n2);
+ GHashTable * (*create_cmp_cache) (EReflowModel *etm);
+ gint (*compare) (EReflowModel *etm, gint n1, gint n2, GHashTable *cmp_cache);
void (*reincarnate) (EReflowModel *etm, gint n, GnomeCanvasItem *item);
/*
@@ -83,9 +84,11 @@ gint e_reflow_model_height (EReflowModel *e_reflow_mod
GnomeCanvasItem *e_reflow_model_incarnate (EReflowModel *e_reflow_model,
gint n,
GnomeCanvasGroup *parent);
+GHashTable * e_reflow_model_create_cmp_cache (EReflowModel *e_reflow_model);
gint e_reflow_model_compare (EReflowModel *e_reflow_model,
gint n1,
- gint n2);
+ gint n2,
+ GHashTable *cmp_cache);
void e_reflow_model_reincarnate (EReflowModel *e_reflow_model,
gint n,
GnomeCanvasItem *item);
diff --git a/widgets/text/e-reflow.c b/widgets/text/e-reflow.c
index d7522d6344..a796d92bba 100644
--- a/widgets/text/e-reflow.c
+++ b/widgets/text/e-reflow.c
@@ -74,11 +74,18 @@ enum {
static guint signals[LAST_SIGNAL] = {0, };
+static GHashTable *
+er_create_cmp_cache (gpointer user_data)
+{
+ EReflow *reflow = user_data;
+ return e_reflow_model_create_cmp_cache (reflow->model);
+}
+
static gint
-er_compare (gint i1, gint i2, gpointer user_data)
+er_compare (gint i1, gint i2, GHashTable *cmp_cache, gpointer user_data)
{
EReflow *reflow = user_data;
- return e_reflow_model_compare (reflow->model, i1, i2);
+ return e_reflow_model_compare (reflow->model, i1, i2, cmp_cache);
}
static gint
@@ -1594,7 +1601,7 @@ e_reflow_init (EReflow *reflow)
reflow->set_scroll_adjustments_id = 0;
reflow->selection = E_SELECTION_MODEL (e_selection_model_simple_new ());
- reflow->sorter = e_sorter_array_new (er_compare, reflow);
+ reflow->sorter = e_sorter_array_new (er_create_cmp_cache, er_compare, reflow);
g_object_set (reflow->selection,
"sorter", reflow->sorter,