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Simplify with a macro. This bloats the compiled code, but at least it

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2003-10-01  Federico Mena Quintero  <federico@ximian.com>

	* gtkfilechooserimpldefault.c (name_sort_func): Simplify with a
	macro.  This bloats the compiled code, but at least it makes the
	human-readable code not egregiously ugly.
	(size_sort_func): Likewise.
	(mtime_sort_func): Likewise.
This commit is contained in:
Federico Mena Quintero 2003-10-01 21:40:17 +00:00 committed by Federico Mena Quintero
parent 40743e126f
commit feb412c194
1 changed files with 26 additions and 74 deletions
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100
gtk/gtkfilechooserdefault.c
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@ -1398,73 +1398,15 @@ set_current_filter (GtkFileChooserImplDefault *impl,
}
}
typedef gint (* FileCompareFunc) (const GtkFileInfo *info_a, const GtkFileInfo *info_b);
/* Helper function for comparers. Makes sure that directories always go first,
* regardless of the sort order of the list.
*/
static gint
compare_with_folders_first (GtkFileChooserImplDefault *impl,
GtkTreeIter *a,
GtkTreeIter *b,
FileCompareFunc func)
{
const GtkFileInfo *info_a = _gtk_file_system_model_get_info (impl->tree_model, a);
const GtkFileInfo *info_b = _gtk_file_system_model_get_info (impl->tree_model, b);
gboolean dir_a = gtk_file_info_get_is_folder (info_a);
gboolean dir_b = gtk_file_info_get_is_folder (info_b);
/* You know why we should *not* be programming in C?
*
* (set-sort-func sortable NAME_COLUMN
* (make-comparer impl (lambda (a b) (strcmp (get-name a) (get-name b)))))
* (set-sort-func sortable SIZE_COLUMN
* (make-comparer impl (lambda (a b) (compare (get-size a) (get-size b)))))
* ... etc ...
*
* (define (make-comparer impl f)
* (lambda (a b)
* (if (eq (is-dir? a) (is-dir? b))
* (f a b)
* (if (sort-ascending? impl)
* (if (is-dir? a) -1 1)
* (if (is-dir? a) 1 -1)))))
*
* Rather than all this callback mess.
*/
if (dir_a == dir_b)
return (* func) (info_a, info_b);
else
return impl->list_sort_ascending ? (dir_a ? -1 : 1) : (dir_a ? 1 : -1); /* Directories *always* go first */
}
static gint
compare_names (const GtkFileInfo *info_a,
const GtkFileInfo *info_b)
{
return strcmp (gtk_file_info_get_display_key (info_a), gtk_file_info_get_display_key (info_b));
}
static gint
compare_sizes (const GtkFileInfo *info_a,
const GtkFileInfo *info_b)
{
gint64 size_a = gtk_file_info_get_size (info_a);
gint64 size_b = gtk_file_info_get_size (info_b);
return size_a > size_b ? -1 : (size_a == size_b ? 0 : 1);
}
static gint
compare_mtime (const GtkFileInfo *info_a,
const GtkFileInfo *info_b)
{
GtkFileTime ta = gtk_file_info_get_modification_time (info_a);
GtkFileTime tb = gtk_file_info_get_modification_time (info_b);
return ta > tb ? -1 : (ta == tb ? 0 : 1);
}
#define COMPARE_DIRECTORIES \
GtkFileChooserImplDefault *impl = user_data; \
const GtkFileInfo *info_a = _gtk_file_system_model_get_info (impl->tree_model, a); \
const GtkFileInfo *info_b = _gtk_file_system_model_get_info (impl->tree_model, b); \
gboolean dir_a = gtk_file_info_get_is_folder (info_a); \
gboolean dir_b = gtk_file_info_get_is_folder (info_b); \
\
if (dir_a != dir_b) \
return impl->list_sort_ascending ? (dir_a ? -1 : 1) : (dir_a ? 1 : -1) /* Directories *always* go first */
/* Sort callback for the filename column */
static gint
@ -1473,9 +1415,9 @@ name_sort_func (GtkTreeModel *model,
GtkTreeIter *b,
gpointer user_data)
{
GtkFileChooserImplDefault *impl = user_data;
return compare_with_folders_first (impl, a, b, compare_names);
COMPARE_DIRECTORIES;
else
return strcmp (gtk_file_info_get_display_key (info_a), gtk_file_info_get_display_key (info_b));
}
/* Sort callback for the size column */
@ -1485,9 +1427,14 @@ size_sort_func (GtkTreeModel *model,
GtkTreeIter *b,
gpointer user_data)
{
GtkFileChooserImplDefault *impl = user_data;
COMPARE_DIRECTORIES;
else
{
gint64 size_a = gtk_file_info_get_size (info_a);
gint64 size_b = gtk_file_info_get_size (info_b);
return compare_with_folders_first (impl, a, b, compare_sizes);
return size_a > size_b ? -1 : (size_a == size_b ? 0 : 1);
}
}
/* Sort callback for the mtime column */
@ -1497,9 +1444,14 @@ mtime_sort_func (GtkTreeModel *model,
GtkTreeIter *b,
gpointer user_data)
{
GtkFileChooserImplDefault *impl = user_data;
COMPARE_DIRECTORIES;
else
{
GtkFileTime ta = gtk_file_info_get_modification_time (info_a);
GtkFileTime tb = gtk_file_info_get_modification_time (info_b);
return compare_with_folders_first (impl, a, b, compare_mtime);
return ta > tb ? -1 : (ta == tb ? 0 : 1);
}
}
static void