g_free (foo);
}
}
- // g_print ("Max Number of delimiters per row: %d\n", tf->max_delimiters);
+}
+
+static void
+cache_invalidate (PsppireDelimitedText *tf)
+{
+ memset (tf->cache_starts, 0, 512);
+ if (tf->const_cache.string)
+ {
+ ss_dealloc (&tf->const_cache);
+ tf->const_cache.string = NULL;
+ tf->cache_row = -1;
+ }
}
static void
{
case PROP_FIRST_LINE:
tf->first_line = g_value_get_int (value);
- if (tf->const_cache.string)
- {
- ss_dealloc (&tf->const_cache);
- tf->cache_row = -1;
- }
break;
case PROP_CHILD:
tf->child = g_value_get_object (value);
+ g_return_if_fail (PSPPIRE_IS_TEXT_FILE (tf->child));
break;
case PROP_DELIMITERS:
g_slist_free (tf->delimiters);
break;
};
- if (tf->child)
- count_delims (tf);
+ cache_invalidate (tf);
+ count_delims (tf);
}
static void
static GObjectClass *parent_class = NULL;
+static gint
+n_lines (PsppireDelimitedText *file)
+{
+ PsppireTextFile *child = PSPPIRE_TEXT_FILE (file->child);
+
+ return child->maximum_lines;
+}
static gboolean
__tree_get_iter (GtkTreeModel *tree_model,
if (path == NULL)
return FALSE;
- // g_print ("%s:%d %s %s\n", __FILE__, __LINE__, __FUNCTION__, gtk_tree_path_to_string (path));
-
+
gint *indices = gtk_tree_path_get_indices (path);
if (!indices)
gint n = *indices;
- gint children = gtk_tree_model_iter_n_children (file->child, NULL);
+ gint children = n_lines (file);
if (n >= children - file->first_line)
return FALSE;
-
- // g_print ("%s:%d %s %d Children: %d\n", __FILE__, __LINE__, __FUNCTION__, n, children);
-
+
+
iter->user_data = GINT_TO_POINTER (n);
iter->stamp = file->stamp;
g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
gint n = GPOINTER_TO_INT (iter->user_data);
-
- // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
- gint children = gtk_tree_model_iter_n_children (file->child, NULL);
+
+ gint children = n_lines (file);
if (n + 1 >= children - file->first_line)
return FALSE;
__tree_get_column_type (GtkTreeModel *tree_model,
gint index)
{
- // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
if (index == 0)
return G_TYPE_INT;
__iter_has_child (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
- g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
return 0;
}
GtkTreeIter *iter,
GtkTreeIter *child)
{
- g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
return 0;
}
__tree_get_path (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
- // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
g_return_val_if_fail (file->stamp == iter->stamp, FALSE);
gint n = GPOINTER_TO_INT (iter->user_data);
- gint children = gtk_tree_model_iter_n_children (file->child, NULL);
+ gint children = n_lines (file);
if (n >= children - file->first_line)
return NULL;
-
+
return gtk_tree_path_new_from_indices (n, -1);
}
GtkTreeIter *iter,
GtkTreeIter *parent)
{
- g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
return 0;
}
__tree_model_iter_n_children (GtkTreeModel *tree_model,
GtkTreeIter *iter)
{
- g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
g_assert (iter == NULL);
- return 0;
+
+ gint children = n_lines (file);
+
+ return children - file->first_line;
}
static GtkTreeModelFlags
__tree_model_get_flags (GtkTreeModel *model)
{
- // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
g_return_val_if_fail (PSPPIRE_IS_DELIMITED_TEXT (model), (GtkTreeModelFlags) 0);
return GTK_TREE_MODEL_LIST_ONLY;
static gint
__tree_model_get_n_columns (GtkTreeModel *tree_model)
{
- // g_print ("%s:%d %s\n", __FILE__, __LINE__, __FUNCTION__);
PsppireDelimitedText *tf = PSPPIRE_DELIMITED_TEXT (tree_model);
/* + 1 for the trailing field and +1 for the leading line number column */
GtkTreeIter *parent,
gint n)
{
- // g_print ("%s:%d %s %d\n", __FILE__, __LINE__, __FUNCTION__, n);
PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
g_assert (parent == NULL);
}
+/* Split row N into it's delimited fields (if it is not already cached)
+ and set this row as the current cache. */
+static void
+split_row_into_fields (PsppireDelimitedText *file, gint n)
+{
+ if (n == file->cache_row) /* Cache hit */
+ {
+ return;
+ }
+
+ memset (file->cache_starts, 0, 512);
+ /* Cache miss */
+ if (file->const_cache.string)
+ {
+ ss_dealloc (&file->const_cache);
+ }
+ ss_alloc_substring_pool (&file->const_cache,
+ PSPPIRE_TEXT_FILE (file->child)->lines[n], NULL);
+ struct substring cs = file->const_cache;
+ int field = 0;
+ file->cache_starts[0] = cs.string;
+ for (;
+ UINT32_MAX != ss_first_mb (cs);
+ ss_get_mb (&cs))
+ {
+ ucs4_t xx = ss_first_mb (cs);
+ GSList *del;
+ for (del = file->delimiters; del; del = g_slist_next (del))
+ {
+ if (xx == GPOINTER_TO_INT (del->data))
+ {
+ field++;
+ int char_len = ss_first_mblen (cs);
+ file->cache_starts[field] = cs.string + char_len;
+ while (char_len > 0)
+ {
+ cs.string[char_len - 1] = '\0';
+ char_len--;
+ }
+ break;
+ }
+ }
+ }
+
+ file->cache_row = n;
+}
+
+const gchar *
+psppire_delimited_text_get_header_title (PsppireDelimitedText *file, gint column)
+{
+ if (file->first_line <= 0)
+ return NULL;
+
+ split_row_into_fields (file, file->first_line - 1);
+
+ return file->cache_starts [column];
+}
+
static void
__get_value (GtkTreeModel *tree_model,
GtkTreeIter *iter,
gint column,
GValue *value)
{
- // g_print ("%s:%d %s Col: %d\n", __FILE__, __LINE__, __FUNCTION__, column);
PsppireDelimitedText *file = PSPPIRE_DELIMITED_TEXT (tree_model);
g_return_if_fail (iter->stamp == file->stamp);
gint n = GPOINTER_TO_INT (iter->user_data) + file->first_line;
- // g_print ("%s:%d Row: %d\n", __FILE__, __LINE__, n);
-
+
if (column == 0)
{
g_value_init (value, G_TYPE_INT);
g_value_init (value, G_TYPE_STRING);
- if (n != file->cache_row)
- {
- if (file->const_cache.string)
- {
- ss_dealloc (&file->const_cache);
- }
- ss_alloc_substring (&file->const_cache, PSPPIRE_TEXT_FILE (file->child)->lines[n]);
- file->cache = file->const_cache;
- int field = 0;
- file->cache_starts[0] = file->cache.string;
- for (;
- UINT32_MAX != ss_first_mb (file->cache);
- ss_get_mb (&file->cache))
- {
- ucs4_t xx = ss_first_mb (file->cache);
- GSList *del;
- for (del = file->delimiters; del; del = g_slist_next (del))
- {
- if (xx == GPOINTER_TO_INT (del->data))
- {
- field++;
- int char_len = ss_first_mblen (file->cache);
- file->cache_starts[field] = file->cache.string + char_len;
- while (char_len > 0)
- {
- file->cache.string[char_len - 1] = '\0';
- char_len--;
- }
- break;
- }
- }
- }
+ split_row_into_fields (file, n);
- file->cache_row = n;
- }
-
g_value_set_string (value, file->cache_starts [column - 1]);
}
P_("The first line to be considered."),
0, 1000, 0,
G_PARAM_READWRITE);
-
+
GParamSpec *delimiters_spec =
g_param_spec_pointer ("delimiters",
"Field Delimiters",
P_("A GSList of gunichars which delimit the fields."),
G_PARAM_READWRITE);
- GParamSpec *child_spec =
+ GParamSpec *child_spec =
g_param_spec_object ("child",
"Child Model",
P_("The GtkTextModel which this object wraps."),
GTK_TYPE_TREE_MODEL,
G_PARAM_CONSTRUCT_ONLY |G_PARAM_READWRITE);
-
+
object_class->set_property = psppire_delimited_text_set_property;
object_class->get_property = psppire_delimited_text_get_property;
g_object_class_install_property (object_class,
PROP_FIRST_LINE,
first_line_spec);
-
+
object_class->finalize = psppire_delimited_text_finalize;
object_class->dispose = psppire_delimited_text_dispose;
}
text_file->const_cache.string = NULL;
text_file->const_cache.length = 0;
text_file->cache_row = -1;
+ memset (text_file->cache_starts, 0, 512);
text_file->max_delimiters = 0;
}
-PsppireDelimitedText *
+GtkTreeModel *
psppire_delimited_text_new (GtkTreeModel *child)
{
PsppireDelimitedText *retval =
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