AuroraMiddleware/gtk2
1
0
Fork 0
forked from AuroraMiddleware/gtk
Code Issues Pull Requests Projects Releases Wiki Activity
55b9aa0309
gtk2/tests/testlistview.c

668 lines
18 KiB
C
Raw Normal View History

listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
#include <gtk/gtk.h>
tests: Add a rough form of multiselection Just store a "filechooser::selected" attribute in the GFileInfo if the file is meant to be selected.
2019-10-06 02:17:14 +00:00
#define FILE_INFO_TYPE_SELECTION (file_info_selection_get_type ())
G_DECLARE_FINAL_TYPE (FileInfoSelection, file_info_selection, FILE_INFO, SELECTION, GObject)
struct _FileInfoSelection
{
GObject parent_instance;
GListModel *model;
};
struct _FileInfoSelectionClass
{
GObjectClass parent_class;
};
static GType
file_info_selection_get_item_type (GListModel *list)
{
FileInfoSelection *self = FILE_INFO_SELECTION (list);
return g_list_model_get_item_type (self->model);
}
static guint
file_info_selection_get_n_items (GListModel *list)
{
FileInfoSelection *self = FILE_INFO_SELECTION (list);
return g_list_model_get_n_items (self->model);
}
static gpointer
file_info_selection_get_item (GListModel *list,
guint position)
{
FileInfoSelection *self = FILE_INFO_SELECTION (list);
return g_list_model_get_item (self->model, position);
}
static void
file_info_selection_list_model_init (GListModelInterface *iface)
{
iface->get_item_type = file_info_selection_get_item_type;
iface->get_n_items = file_info_selection_get_n_items;
iface->get_item = file_info_selection_get_item;
}
static gboolean
file_info_selection_is_selected (GtkSelectionModel *model,
guint position)
{
FileInfoSelection *self = FILE_INFO_SELECTION (model);
gpointer item;
item = g_list_model_get_item (self->model, position);
if (item == NULL)
return FALSE;
if (GTK_IS_TREE_LIST_ROW (item))
{
GtkTreeListRow *row = item;
item = gtk_tree_list_row_get_item (row);
g_object_unref (row);
}
return g_file_info_get_attribute_boolean (item, "filechooser::selected");
}
static void
file_info_selection_set_selected (FileInfoSelection *self,
guint position,
gboolean selected)
{
gpointer item;
item = g_list_model_get_item (self->model, position);
if (item == NULL)
return;
if (GTK_IS_TREE_LIST_ROW (item))
{
GtkTreeListRow *row = item;
item = gtk_tree_list_row_get_item (row);
g_object_unref (row);
}
g_file_info_set_attribute_boolean (item, "filechooser::selected", selected);
}
static gboolean
file_info_selection_select_item (GtkSelectionModel *model,
guint position,
gboolean exclusive)
{
FileInfoSelection *self = FILE_INFO_SELECTION (model);
if (exclusive)
{
guint i;
for (i = 0; i < g_list_model_get_n_items (self->model); i++)
file_info_selection_set_selected (self, i, i == position);
gtk_selection_model_selection_changed (model, 0, g_list_model_get_n_items (self->model));
}
else
{
file_info_selection_set_selected (self, position, TRUE);
gtk_selection_model_selection_changed (model, position, 1);
}
return TRUE;
}
static gboolean
file_info_selection_unselect_item (GtkSelectionModel *model,
guint position)
{
FileInfoSelection *self = FILE_INFO_SELECTION (model);
file_info_selection_set_selected (self, position, FALSE);
gtk_selection_model_selection_changed (model, position, 1);
return TRUE;
}
static gboolean
file_info_selection_select_range (GtkSelectionModel *model,
guint position,
guint n_items,
gboolean exclusive)
{
FileInfoSelection *self = FILE_INFO_SELECTION (model);
guint i;
if (exclusive)
for (i = 0; i < position; i++)
file_info_selection_set_selected (self, i, FALSE);
for (i = position; i < position + n_items; i++)
file_info_selection_set_selected (self, i, TRUE);
if (exclusive)
for (i = position + n_items; i < g_list_model_get_n_items (self->model); i++)
file_info_selection_set_selected (self, i, FALSE);
if (exclusive)
gtk_selection_model_selection_changed (model, 0, g_list_model_get_n_items (self->model));
else
gtk_selection_model_selection_changed (model, position, n_items);
return TRUE;
}
static gboolean
file_info_selection_unselect_range (GtkSelectionModel *model,
guint position,
guint n_items)
{
FileInfoSelection *self = FILE_INFO_SELECTION (model);
guint i;
for (i = position; i < position + n_items; i++)
file_info_selection_set_selected (self, i, FALSE);
gtk_selection_model_selection_changed (model, position, n_items);
return TRUE;
}
static void
file_info_selection_selection_model_init (GtkSelectionModelInterface *iface)
{
iface->is_selected = file_info_selection_is_selected;
iface->select_item = file_info_selection_select_item;
iface->unselect_item = file_info_selection_unselect_item;
iface->select_range = file_info_selection_select_range;
iface->unselect_range = file_info_selection_unselect_range;
}
G_DEFINE_TYPE_EXTENDED (FileInfoSelection, file_info_selection, G_TYPE_OBJECT, 0,
G_IMPLEMENT_INTERFACE (G_TYPE_LIST_MODEL,
file_info_selection_list_model_init)
G_IMPLEMENT_INTERFACE (GTK_TYPE_SELECTION_MODEL,
file_info_selection_selection_model_init))
static void
file_info_selection_items_changed_cb (GListModel *model,
guint position,
guint removed,
guint added,
FileInfoSelection *self)
{
g_list_model_items_changed (G_LIST_MODEL (self), position, removed, added);
}
static void
file_info_selection_clear_model (FileInfoSelection *self)
{
if (self->model == NULL)
return;
g_signal_handlers_disconnect_by_func (self->model,
file_info_selection_items_changed_cb,
self);
g_clear_object (&self->model);
}
static void
file_info_selection_dispose (GObject *object)
{
FileInfoSelection *self = FILE_INFO_SELECTION (object);
file_info_selection_clear_model (self);
G_OBJECT_CLASS (file_info_selection_parent_class)->dispose (object);
}
static void
file_info_selection_class_init (FileInfoSelectionClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->dispose = file_info_selection_dispose;
}
static void
file_info_selection_init (FileInfoSelection *self)
{
}
static FileInfoSelection *
file_info_selection_new (GListModel *model)
{
FileInfoSelection *result;
result = g_object_new (FILE_INFO_TYPE_SELECTION, NULL);
result->model = g_object_ref (model);
g_signal_connect (result->model, "items-changed",
G_CALLBACK (file_info_selection_items_changed_cb), result);
return result;
}
/*** ---------------------- ***/
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
GSList *pending = NULL;
guint active = 0;
static void
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
loading_cb (GtkDirectoryList *dir,
GParamSpec *pspec,
gpointer unused)
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
if (gtk_directory_list_is_loading (dir))
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
active++;
/* HACK: ensure loading finishes and the dir doesn't get destroyed */
g_object_ref (dir);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
else
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
active--;
g_object_unref (dir);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
while (active < 20 && pending)
{
GtkDirectoryList *dir2 = pending->data;
pending = g_slist_remove (pending, dir2);
gtk_directory_list_set_file (dir2, g_object_get_data (G_OBJECT (dir2), "file"));
g_object_unref (dir2);
}
}
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
static GtkDirectoryList *
create_directory_list (GFile *file)
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
GtkDirectoryList *dir;
dir = gtk_directory_list_new (G_FILE_ATTRIBUTE_STANDARD_TYPE
"," G_FILE_ATTRIBUTE_STANDARD_NAME
"," G_FILE_ATTRIBUTE_STANDARD_DISPLAY_NAME,
NULL);
gtk_directory_list_set_io_priority (dir, G_PRIORITY_DEFAULT_IDLE);
g_signal_connect (dir, "notify::loading", G_CALLBACK (loading_cb), NULL);
g_assert (!gtk_directory_list_is_loading (dir));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
if (active > 20)
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
g_object_set_data_full (G_OBJECT (dir), "file", g_object_ref (file), g_object_unref);
pending = g_slist_prepend (pending, g_object_ref (dir));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
else
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
gtk_directory_list_set_file (dir, file);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
return dir;
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
static char *
get_file_path (GFileInfo *info)
{
GFile *file;
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
file = G_FILE (g_file_info_get_attribute_object (info, "standard::file"));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
return g_file_get_path (file);
}
static GListModel *
create_list_model_for_directory (gpointer file)
{
GtkSortListModel *sort;
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
GtkDirectoryList *dir;
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
GtkSorter *sorter;
if (g_file_query_file_type (file, G_FILE_QUERY_INFO_NOFOLLOW_SYMLINKS, NULL) != G_FILE_TYPE_DIRECTORY)
return NULL;
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
dir = create_directory_list (file);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
sorter = gtk_string_sorter_new (gtk_cclosure_expression_new (G_TYPE_STRING, NULL, 0, NULL, (GCallback) get_file_path, NULL, NULL));
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
sort = gtk_sort_list_model_new (G_LIST_MODEL (dir), sorter);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
g_object_unref (sorter);
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
g_object_unref (dir);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
return G_LIST_MODEL (sort);
}
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
typedef struct _RowData RowData;
struct _RowData
{
GtkWidget *expander;
GtkWidget *icon;
GtkWidget *name;
testlistview: Load icons async Speeds up loading by 4x, because out of view icons aren't loaded anymore.
2019-10-03 04:50:51 +00:00
GCancellable *cancellable;
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
GtkTreeListRow *current_item;
};
static void row_data_notify_item (GtkListItem *item,
GParamSpec *pspec,
RowData *data);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
static void
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
row_data_unbind (RowData *data)
{
if (data->current_item == NULL)
return;
testlistview: Load icons async Speeds up loading by 4x, because out of view icons aren't loaded anymore.
2019-10-03 04:50:51 +00:00
if (data->cancellable)
{
g_cancellable_cancel (data->cancellable);
g_clear_object (&data->cancellable);
}
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
g_clear_object (&data->current_item);
}
testlistview: Load icons async Speeds up loading by 4x, because out of view icons aren't loaded anymore.
2019-10-03 04:50:51 +00:00
static void
row_data_update_info (RowData *data,
GFileInfo *info)
{
GIcon *icon;
const char *thumbnail_path;
thumbnail_path = g_file_info_get_attribute_byte_string (info, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
if (thumbnail_path)
{
/* XXX: not async */
GFile *thumbnail_file = g_file_new_for_path (thumbnail_path);
icon = g_file_icon_new (thumbnail_file);
g_object_unref (thumbnail_file);
}
else
{
icon = g_file_info_get_icon (info);
}
gtk_widget_set_visible (data->icon, icon != NULL);
gtk_image_set_from_gicon (GTK_IMAGE (data->icon), icon);
}
static void
copy_attribute (GFileInfo *to,
GFileInfo *from,
const gchar *attribute)
{
GFileAttributeType type;
gpointer value;
if (g_file_info_get_attribute_data (from, attribute, &type, &value, NULL))
g_file_info_set_attribute (to, attribute, type, value);
}
static void
row_data_got_thumbnail_info_cb (GObject *source,
GAsyncResult *res,
gpointer _data)
{
RowData *data = _data; /* invalid if operation was cancelled */
GFile *file = G_FILE (source);
GFileInfo *queried, *info;
queried = g_file_query_info_finish (file, res, NULL);
if (queried == NULL)
return;
/* now we know row is valid */
info = gtk_tree_list_row_get_item (data->current_item);
copy_attribute (info, queried, G_FILE_ATTRIBUTE_THUMBNAIL_PATH);
copy_attribute (info, queried, G_FILE_ATTRIBUTE_THUMBNAILING_FAILED);
copy_attribute (info, queried, G_FILE_ATTRIBUTE_STANDARD_ICON);
g_object_unref (queried);
row_data_update_info (data, info);
g_clear_object (&data->cancellable);
}
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
static void
row_data_bind (RowData *data,
GtkTreeListRow *item)
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
{
GFileInfo *info;
listview: Change how binding is done We now don't let the functions create widgets for the item from the listmodel, instead we hand out a GtkListItem for them to add a widget to. GtkListItems are created in advance and can only be filled in by the binding code by gtk_container_add()ing a widget. However, they are GObjects, so they can provide properties that the binding code can make use of - either via notify signals or GBinding.
2018-09-24 02:42:15 +00:00
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
row_data_unbind (data);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
if (item == NULL)
return;
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
data->current_item = g_object_ref (item);
testlistview: Show the row number Always show the current row. This is mostly useful for debugging, not for beauty.
2018-09-25 23:41:39 +00:00
Add GtkTreeExpander This is a container widget that takes over all the duties of tree expanding and collapsing. It has to be a container so it can capture keybindings while focus is inside the listitem. So far, this widget does not allow interacting with it, but it shows the expander arrow in its correct state. Also, testlistview uses this widget now instead of implementing expanding itself.
2019-10-14 02:31:20 +00:00
gtk_tree_expander_set_list_row (GTK_TREE_EXPANDER (data->expander), item);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
info = gtk_tree_list_row_get_item (item);
testlistview: Load icons async Speeds up loading by 4x, because out of view icons aren't loaded anymore.
2019-10-03 04:50:51 +00:00
if (!g_file_info_has_attribute (info, "filechooser::queried"))
{
data->cancellable = g_cancellable_new ();
g_file_info_set_attribute_boolean (info, "filechooser::queried", TRUE);
g_file_query_info_async (G_FILE (g_file_info_get_attribute_object (info, "standard::file")),
G_FILE_ATTRIBUTE_THUMBNAIL_PATH ","
G_FILE_ATTRIBUTE_THUMBNAILING_FAILED ","
G_FILE_ATTRIBUTE_STANDARD_ICON,
G_FILE_QUERY_INFO_NONE,
G_PRIORITY_DEFAULT,
data->cancellable,
row_data_got_thumbnail_info_cb,
data);
}
row_data_update_info (data, info);
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
gtk_label_set_label (GTK_LABEL (data->name), g_file_info_get_display_name (info));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
g_object_unref (info);
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
}
static void
row_data_notify_item (GtkListItem *item,
GParamSpec *pspec,
RowData *data)
{
row_data_bind (data, gtk_list_item_get_item (item));
}
static void
row_data_free (gpointer _data)
{
RowData *data = _data;
row_data_unbind (data);
g_slice_free (RowData, data);
}
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
static void
setup_widget (GtkListItem *list_item,
gpointer unused)
{
GtkWidget *box, *child;
RowData *data;
data = g_slice_new0 (RowData);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_list_item_set_child (list_item, box);
child = gtk_label_new (NULL);
gtk_label_set_width_chars (GTK_LABEL (child), 5);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
gtk_box_append (GTK_BOX (box), child);
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
Add GtkTreeExpander This is a container widget that takes over all the duties of tree expanding and collapsing. It has to be a container so it can capture keybindings while focus is inside the listitem. So far, this widget does not allow interacting with it, but it shows the expander arrow in its correct state. Also, testlistview uses this widget now instead of implementing expanding itself.
2019-10-14 02:31:20 +00:00
data->expander = gtk_tree_expander_new ();
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
gtk_box_append (GTK_BOX (box), data->expander);
Add GtkTreeExpander This is a container widget that takes over all the duties of tree expanding and collapsing. It has to be a container so it can capture keybindings while focus is inside the listitem. So far, this widget does not allow interacting with it, but it shows the expander arrow in its correct state. Also, testlistview uses this widget now instead of implementing expanding itself.
2019-10-14 02:31:20 +00:00
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_tree_expander_set_child (GTK_TREE_EXPANDER (data->expander), box);
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
data->icon = gtk_image_new ();
gtk_box_append (GTK_BOX (box), data->icon);
data->name = gtk_label_new (NULL);
gridview: Implement minimum row height We only allocate a certain amount of widgets - and we don't want to run out of them. So we make all widgets high enough for this to never happen.
2019-10-19 19:45:24 +00:00
gtk_label_set_max_width_chars (GTK_LABEL (data->name), 25);
gtk_label_set_ellipsize (GTK_LABEL (data->name), PANGO_ELLIPSIZE_END);
testlistview: Create widgets only once Previously, we were recreating all widgets every time the list item was rebound, which caused a lot of extra work every time we scrolled. Now we keep the widgets around and only set their properties again when the item changes.
2018-09-26 00:18:13 +00:00
gtk_box_append (GTK_BOX (box), data->name);
listitem: Make this a GObject This splits GtkListItem into 2 parts: 1. GtkListItem This is purely a GObject with public API for developers who want to populate lists. There is no chance to cause conflict with GtkWidget properties that the list implementation assumed control over and defines a clear boundary. 2. GtkListItemWidget The widget part of the listitem. This is not only fully in control of the list machinery, the machinery can also use different widget implementations for different list widgets like I inted to for GtkColumnView.
2019-11-01 06:31:38 +00:00
g_signal_connect (list_item, "notify::item", G_CALLBACK (row_data_notify_item), data);
g_object_set_data_full (G_OBJECT (list_item), "row-data", data, row_data_free);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
}
static GListModel *
create_list_model_for_file_info (gpointer file_info,
gpointer unused)
{
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
GFile *file = G_FILE (g_file_info_get_attribute_object (file_info, "standard::file"));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
if (file == NULL)
return NULL;
return create_list_model_for_directory (file);
}
static gboolean
update_statusbar (GtkStatusbar *statusbar)
{
GListModel *model = g_object_get_data (G_OBJECT (statusbar), "model");
GString *string = g_string_new (NULL);
guint n;
gboolean result = G_SOURCE_REMOVE;
gtk_statusbar_remove_all (statusbar, 0);
n = g_list_model_get_n_items (model);
g_string_append_printf (string, "%u", n);
if (GTK_IS_FILTER_LIST_MODEL (model))
{
guint n_unfiltered = g_list_model_get_n_items (gtk_filter_list_model_get_model (GTK_FILTER_LIST_MODEL (model)));
if (n != n_unfiltered)
g_string_append_printf (string, "/%u", n_unfiltered);
}
g_string_append (string, " items");
if (pending || active)
{
g_string_append_printf (string, " (%u directories remaining)", active + g_slist_length (pending));
result = G_SOURCE_CONTINUE;
}
listview: Expose GtkListItemFactory APIs Due to the many different ways to set factories, it makes sense to expose them as custom objects. This makes the actual APIs for the list widgets simpler, because they can just have a regular "factory" property. As a convenience function, gtk_list_view_new_with_factory() was added to make this whole approach easy to use from C.
2019-10-08 22:07:07 +00:00
result = G_SOURCE_CONTINUE;
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
gtk_statusbar_push (statusbar, 0, string->str);
g_free (string->str);
return result;
}
static gboolean
match_file (gpointer item, gpointer data)
{
GtkWidget *search_entry = data;
GFileInfo *info = gtk_tree_list_row_get_item (item);
testlistview: Port to directory list
2019-11-25 07:26:55 +00:00
GFile *file = G_FILE (g_file_info_get_attribute_object (info, "standard::file"));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
char *path;
gboolean result;
path = g_file_get_path (file);
result = strstr (path, gtk_editable_get_text (GTK_EDITABLE (search_entry))) != NULL;
g_object_unref (info);
g_free (path);
return result;
}
static void
search_changed_cb (GtkSearchEntry *entry,
GtkFilter *custom_filter)
{
gtk_filter_changed (custom_filter, GTK_FILTER_CHANGE_DIFFERENT);
}
int
main (int argc, char *argv[])
{
GtkWidget *win, *vbox, *sw, *listview, *search_entry, *statusbar;
GListModel *dirmodel;
GtkTreeListModel *tree;
GtkFilterListModel *filter;
GtkFilter *custom_filter;
tests: Add a rough form of multiselection Just store a "filechooser::selected" attribute in the GFileInfo if the file is meant to be selected.
2019-10-06 02:17:14 +00:00
FileInfoSelection *selectionmodel;
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
GFile *root;
GListModel *toplevels;
gtk_init ();
win = gtk_window_new ();
gtk_window_set_default_size (GTK_WINDOW (win), 400, 600);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_window_set_child (GTK_WINDOW (win), vbox);
search_entry = gtk_search_entry_new ();
gtk_box_append (GTK_BOX (vbox), search_entry);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_widget_set_vexpand (sw, TRUE);
gtk_search_entry_set_key_capture_widget (GTK_SEARCH_ENTRY (search_entry), sw);
gtk_box_append (GTK_BOX (vbox), sw);
gridview: Implement minimum row height We only allocate a certain amount of widgets - and we don't want to run out of them. So we make all widgets high enough for this to never happen.
2019-10-19 19:45:24 +00:00
listview = gtk_grid_view_new_with_factory (
listview: Expose GtkListItemFactory APIs Due to the many different ways to set factories, it makes sense to expose them as custom objects. This makes the actual APIs for the list widgets simpler, because they can just have a regular "factory" property. As a convenience function, gtk_list_view_new_with_factory() was added to make this whole approach easy to use from C.
2019-10-08 22:07:07 +00:00
gtk_functions_list_item_factory_new (setup_widget,
NULL,
NULL, NULL));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), listview);
if (argc > 1)
root = g_file_new_for_commandline_arg (argv[1]);
else
root = g_file_new_for_path (g_get_current_dir ());
dirmodel = create_list_model_for_directory (root);
tree = gtk_tree_list_model_new (FALSE,
dirmodel,
TRUE,
create_list_model_for_file_info,
NULL, NULL);
g_object_unref (dirmodel);
g_object_unref (root);
custom_filter = gtk_custom_filter_new (match_file, search_entry, NULL);
filter = gtk_filter_list_model_new (G_LIST_MODEL (tree), custom_filter);
g_signal_connect (search_entry, "search-changed", G_CALLBACK (search_changed_cb), custom_filter);
g_object_unref (custom_filter);
tests: Add a rough form of multiselection Just store a "filechooser::selected" attribute in the GFileInfo if the file is meant to be selected.
2019-10-06 02:17:14 +00:00
selectionmodel = file_info_selection_new (G_LIST_MODEL (filter));
g_object_unref (filter);
gridview: Implement minimum row height We only allocate a certain amount of widgets - and we don't want to run out of them. So we make all widgets high enough for this to never happen.
2019-10-19 19:45:24 +00:00
gtk_grid_view_set_model (GTK_GRID_VIEW (listview), G_LIST_MODEL (selectionmodel));
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
statusbar = gtk_statusbar_new ();
gtk_widget_add_tick_callback (statusbar, (GtkTickCallback) update_statusbar, NULL, NULL);
g_object_set_data (G_OBJECT (statusbar), "model", filter);
g_signal_connect_swapped (filter, "items-changed", G_CALLBACK (update_statusbar), statusbar);
update_statusbar (GTK_STATUSBAR (statusbar));
gtk_box_append (GTK_BOX (vbox), statusbar);
g_object_unref (tree);
tests: Add a rough form of multiselection Just store a "filechooser::selected" attribute in the GFileInfo if the file is meant to be selected.
2019-10-06 02:17:14 +00:00
g_object_unref (selectionmodel);
listview: Make widget actually do something The thing we're actually doing is create and maintain a widget for every row. That's it. Also add a testcase using this. The testcase quickly allocates too many rows though and then becomes unresponsive though. You have been warned.
2018-09-18 02:56:19 +00:00
gtk_widget_show (win);
toplevels = gtk_window_get_toplevels ();
while (g_list_model_get_n_items (toplevels))
g_main_context_iteration (NULL, TRUE);
return 0;
}
Reference in New Issue Copy Permalink