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Added multiple selection API

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2002-02-16  Manish Singh  <yosh@gimp.org>

        * gtk/gtkfilesel.[ch]: Added multiple selection API
This commit is contained in:
Manish Singh 2002-02-17 00:07:48 +00:00 committed by Manish Singh
parent 665723279c
commit ff612419cd
9 changed files with 323 additions and 46 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-0
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@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-10
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@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-2
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@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-4
View File

@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-6
View File

@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

4
ChangeLog.pre-2-8
View File

@ -1,3 +1,7 @@
2002-02-16 Manish Singh <yosh@gimp.org>
* gtk/gtkfilesel.[ch]: Added multiple selection API
2002-02-16 Manish Singh <yosh@gimp.org>
* gdk/linux-fb/miarc.c: use fabs() on a double instead of abs()

322
gtk/gtkfilesel.c
View File

@ -396,10 +396,17 @@ static void gtk_file_selection_abort (GtkFileSelection *fs);
static void gtk_file_selection_update_history_menu (GtkFileSelection *fs,
gchar *current_dir);
static void gtk_file_selection_create_dir (GtkWidget *widget, gpointer data);
static void gtk_file_selection_create_dir (GtkWidget *widget, gpointer data);
static void gtk_file_selection_delete_file (GtkWidget *widget, gpointer data);
static void gtk_file_selection_rename_file (GtkWidget *widget, gpointer data);
static void free_selected_names (GPtrArray *names);
#if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
#define compare_filenames(a, b) strcmp(a, b)
#else
#define compare_filenames(a, b) g_ascii_strcasecmp(a, b)
#endif
static GtkWindowClass *parent_class = NULL;
@ -1116,8 +1123,8 @@ gtk_file_selection_set_filename (GtkFileSelection *filesel,
* gtk_file_selection_get_filename:
* @filesel: a #GtkFileSelection
*
* This function returns the selected filename in the C runtime's
* multibyte string encoding, which may or may not be the same as that
* This function returns the selected filename in encoding of
* g_filename_from_utf8(), which may or may not be the same as that
* used by GTK+ (UTF-8). To convert to UTF-8, call g_filename_to_utf8().
* The returned string points to a statically allocated buffer and
* should be copied if you plan to keep it around.
@ -1199,7 +1206,19 @@ gtk_file_selection_destroy (GtkObject *object)
cmpl_free_state (filesel->cmpl_state);
filesel->cmpl_state = NULL;
}
if (filesel->selected_names)
{
free_selected_names (filesel->selected_names);
filesel->selected_names = NULL;
}
if (filesel->last_selected)
{
g_free (filesel->last_selected);
filesel->last_selected = NULL;
}
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
@ -1815,7 +1834,8 @@ gtk_file_selection_update_history_menu (GtkFileSelection *fs,
}
static gchar *
get_real_filename (gchar *filename)
get_real_filename (gchar *filename,
gboolean free_old)
{
#ifdef G_WITH_CYGWIN
/* Check to see if the selection was a drive selector */
@ -1823,7 +1843,10 @@ get_real_filename (gchar *filename)
{
/* It is... map it to a CYGWIN32 drive */
gchar *temp_filename = g_strdup_printf ("//%c/", tolower (filename[0]));
g_free(filename);
if (free_old)
g_free (filename);
return temp_filename;
}
#else
@ -1844,7 +1867,7 @@ gtk_file_selection_file_activate (GtkTreeView *tree_view,
gtk_tree_model_get_iter (model, &iter, path);
gtk_tree_model_get (model, &iter, FILE_COLUMN, &filename, -1);
filename = get_real_filename (filename);
filename = get_real_filename (filename, TRUE);
gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
gtk_button_clicked (GTK_BUTTON (fs->ok_button));
@ -1852,27 +1875,6 @@ gtk_file_selection_file_activate (GtkTreeView *tree_view,
g_free (filename);
}
static void
gtk_file_selection_file_changed (GtkTreeSelection *selection,
gpointer user_data)
{
GtkFileSelection *fs = GTK_FILE_SELECTION (user_data);
GtkTreeModel *model;
GtkTreeIter iter;
if (gtk_tree_selection_get_selected (selection, &model, &iter))
{
gchar *filename;
gtk_tree_model_get (model, &iter, FILE_COLUMN, &filename, -1);
filename = get_real_filename (filename);
gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
g_free (filename);
}
}
static void
gtk_file_selection_dir_activate (GtkTreeView *tree_view,
GtkTreePath *path,
@ -2091,6 +2093,261 @@ gtk_file_selection_abort (GtkFileSelection *fs)
gtk_label_set_text (GTK_LABEL (fs->selection_text), err_buf);
}
/**
* gtk_file_selection_set_select_multiple:
* @filesel: a #GtkFileSelection
* @select_multiple: whether or not the user is allowed to select multiple
* files in the file list.
*
* Sets whether the user is allowed to select multiple files in the file list.
* Use gtk_file_selection_get_selections () to get the list of selected files.
**/
void
gtk_file_selection_set_select_multiple (GtkFileSelection *filesel,
gboolean select_multiple)
{
GtkTreeSelection *sel;
GtkSelectionMode mode;
g_return_if_fail (GTK_IS_FILE_SELECTION (filesel));
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (filesel->file_list));
mode = select_multiple ? GTK_SELECTION_MULTIPLE : GTK_SELECTION_SINGLE;
gtk_tree_selection_set_mode (sel, mode);
}
/**
* gtk_file_selection_get_select_multiple:
* @filesel: a #GtkFileSelection
*
* Determines whether or not the user is allowed to select multiple files in
* the file list. See gtk_file_selection_set_select_multiple().
*
* Return value: %TRUE if the user is allowed to select multiple files in the
* file list
**/
gboolean
gtk_file_selection_get_select_multiple (GtkFileSelection *filesel)
{
GtkTreeSelection *sel;
g_return_val_if_fail (GTK_IS_FILE_SELECTION (filesel), FALSE);
sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (filesel->file_list));
return (gtk_tree_selection_get_mode (sel) == GTK_SELECTION_MULTIPLE);
}
static void
multiple_changed_foreach (GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
GPtrArray *names = data;
gchar *filename;
gtk_tree_model_get (model, iter, FILE_COLUMN, &filename, -1);
g_ptr_array_add (names, filename);
}
static void
free_selected_names (GPtrArray *names)
{
gint i;
for (i = 0; i < names->len; i++)
g_free (g_ptr_array_index (names, i));
g_ptr_array_free (names, TRUE);
}
static void
gtk_file_selection_file_changed (GtkTreeSelection *selection,
gpointer user_data)
{
GtkFileSelection *fs = GTK_FILE_SELECTION (user_data);
GPtrArray *new_names;
gchar *filename;
const gchar *entry;
gint index = -1;
new_names = g_ptr_array_sized_new (8);
gtk_tree_selection_selected_foreach (selection,
multiple_changed_foreach,
new_names);
/* nothing selected */
if (new_names->len == 0)
{
g_ptr_array_free (new_names, TRUE);
if (fs->selected_names != NULL)
{
free_selected_names (fs->selected_names);
fs->selected_names = NULL;
}
goto maybe_clear_entry;
}
if (new_names->len != 1)
{
GPtrArray *old_names = fs->selected_names;
if (old_names != NULL)
{
/* A common case is selecting a range of files from top to bottom,
* so quickly check for that to avoid looping over the entire list
*/
if (compare_filenames (g_ptr_array_index (old_names, old_names->len - 1),
g_ptr_array_index (new_names, new_names->len - 1)) != 0)
index = new_names->len - 1;
else
{
gint i = 0, j = 0, cmp;
/* do a quick diff, stopping at the first file not in the
* old list
*/
while (i < old_names->len && j < new_names->len)
{
cmp = compare_filenames (g_ptr_array_index (old_names, i),
g_ptr_array_index (new_names, j));
if (cmp < 0)
{
i++;
}
else if (cmp == 0)
{
i++;
j++;
}
else if (cmp > 0)
{
index = j;
break;
}
}
/* we ran off the end of the old list */
if (index == -1 && i < new_names->len)
index = j;
}
}
else
{
/* A phantom anchor still exists at the point where the last item
* was selected, which is used for subsequent range selections.
* So search up from there.
*/
if (compare_filenames (fs->last_selected,
g_ptr_array_index (new_names, 0)) == 0)
index = new_names->len - 1;
else
index = 0;
}
}
else
index = 0;
if (fs->selected_names != NULL)
free_selected_names (fs->selected_names);
fs->selected_names = new_names;
if (index != -1)
{
if (fs->last_selected != NULL)
g_free (fs->last_selected);
fs->last_selected = g_strdup (g_ptr_array_index (new_names, index));
filename = get_real_filename (fs->last_selected, FALSE);
gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), filename);
if (filename != fs->last_selected)
g_free (filename);
return;
}
maybe_clear_entry:
entry = gtk_entry_get_text (GTK_ENTRY (fs->selection_entry));
if ((entry != NULL) && (fs->last_selected != NULL) &&
(compare_filenames (entry, fs->last_selected) == 0))
gtk_entry_set_text (GTK_ENTRY (fs->selection_entry), "");
}
/**
* gtk_file_selection_get_selections:
* @filesel: a #GtkFileSelection
*
* Retrieves the list of file selections the user has made in the dialog box.
* This function is intended for use when the user can select multiple files
* in the file list. The first file in the list is equivalent to what
* gtk_file_selection_get_filename() would return.
*
* The filenames are in the encoding of g_filename_from_utf8, which may or may
* not be the same as that used by GTK+ (UTF-8). To convert to UTF-8, call
* g_filename_to_utf8() on each string.
*
* Return value: a newly-allocated %NULL-terminated array of strings. Use
* g_strfreev() to free it.
**/
gchar **
gtk_file_selection_get_selections (GtkFileSelection *filesel)
{
GPtrArray *names;
gchar **selections;
gchar *filename, *dirname;
gchar *current, *buf;
gint i, count;
g_return_val_if_fail (GTK_IS_FILE_SELECTION (filesel), NULL);
names = filesel->selected_names;
selections = g_new (gchar *, names->len + 2);
filename = g_strdup (gtk_file_selection_get_filename (filesel));
if (strlen (filename) == 0)
{
g_free (filename);
return NULL;
}
count = 0;
selections[count++] = filename;
if (names != NULL)
{
dirname = g_path_get_dirname (filename);
for (i = 0; i < names->len; i++)
{
buf = g_filename_from_utf8 (g_ptr_array_index (names, i), -1,
NULL, NULL, NULL);
current = g_build_filename (dirname, buf, NULL);
g_free (buf);
if (compare_filenames (current, filename) != 0)
selections[count++] = current;
else
g_free (current);
}
}
selections[count] = NULL;
return selections;
}
/**********************************************************************/
/* External Interface */
/**********************************************************************/
@ -3524,13 +3781,8 @@ static gint
compare_cmpl_dir (const void *a,
const void *b)
{
#if !defined(G_OS_WIN32) && !defined(G_WITH_CYGWIN)
return strcmp ((((CompletionDirEntry*)a))->entry_name,
(((CompletionDirEntry*)b))->entry_name);
#else
return g_strcasecmp ((((CompletionDirEntry*)a))->entry_name,
(((CompletionDirEntry*)b))->entry_name);
#endif
return compare_filenames ((((CompletionDirEntry*)a))->entry_name,
(((CompletionDirEntry*)b))->entry_name);
}
static gint

19
gtk/gtkfilesel.h
View File

@ -74,7 +74,9 @@ struct _GtkFileSelection
GtkWidget *button_area;
GtkWidget *action_area;
GPtrArray *selected_names;
gchar *last_selected;
};
struct _GtkFileSelectionClass
@ -100,6 +102,11 @@ void gtk_file_selection_complete (GtkFileSelection *filesel,
void gtk_file_selection_show_fileop_buttons (GtkFileSelection *filesel);
void gtk_file_selection_hide_fileop_buttons (GtkFileSelection *filesel);
gchar** gtk_file_selection_get_selections (GtkFileSelection *filesel);
void gtk_file_selection_set_select_multiple (GtkFileSelection *filesel,
gboolean select_multiple);
gboolean gtk_file_selection_get_select_multiple (GtkFileSelection *filesel);
#ifdef __cplusplus
}
@ -107,13 +114,3 @@ void gtk_file_selection_hide_fileop_buttons (GtkFileSelection *filesel);
#endif /* __GTK_FILESEL_H__ */