search.c

Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。

	/* clear it here, so that the FileData in list is not freed */
	gtk_list_store_clear(GTK_LIST_STORE(store));

	return g_list_reverse(list);
}

static gboolean search_result_free_node(GtkTreeModel *store, GtkTreePath *tpath,
					GtkTreeIter *iter, gpointer data)
{
	FileData *fd;

	gtk_tree_model_get(store, iter, SEARCH_COLUMN_POINTER, &fd, -1);
	file_data_free(fd);

	return FALSE;
}

static void search_result_clear(SearchData *sd)
{
	GtkListStore *store;

	store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view)));

	gtk_tree_model_foreach(GTK_TREE_MODEL(store), search_result_free_node, sd);
	gtk_list_store_clear(store);

	sd->click_fd = NULL;

	thumb_loader_free(sd->thumb_loader);
	sd->thumb_loader = NULL;
	sd->thumb_fd = NULL;

	search_status_update(sd);
}

static void search_result_remove_item(SearchData *sd, FileData *fd, GtkTreeIter *iter)
{
	GtkTreeModel *store;

	if (!fd || !iter) return;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view));

	tree_view_move_cursor_away(GTK_TREE_VIEW(sd->result_view), iter, TRUE);

	gtk_list_store_remove(GTK_LIST_STORE(store), iter);
	if (sd->click_fd == fd) sd->click_fd = NULL;
	if (sd->thumb_fd == fd) sd->thumb_fd = NULL;
	file_data_free(fd);
}

static void search_result_remove(SearchData *sd, FileData *fd)
{
	GtkTreeModel *store;
	GtkTreeIter iter;
	gint valid;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view));
	valid = gtk_tree_model_get_iter_first(store, &iter);
	while (valid)
		{
		FileData *fd_n;

		gtk_tree_model_get(store, &iter, SEARCH_COLUMN_POINTER, &fd_n, -1);
		if (fd_n == fd)
			{
			search_result_remove_item(sd, fd_n, &iter);
			return;
			}

		valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), &iter);
		}
}

static void search_result_remove_selection(SearchData *sd)
{
	GtkTreeSelection *selection;
	GtkTreeModel *store;
	GList *slist;
	GList *flist = NULL;
	GList *work;

	selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(sd->result_view));
	slist = gtk_tree_selection_get_selected_rows(selection, &store);
	work = slist;
	while (work)
		{
		GtkTreePath *tpath = work->data;
		GtkTreeIter iter;
		FileData *fd;

		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, SEARCH_COLUMN_POINTER, &fd, -1);
		flist = g_list_prepend(flist, fd);
		work = work->next;
		}
	g_list_foreach(slist, (GFunc)gtk_tree_path_free, NULL);
	g_list_free(slist);

	work = flist;
	while (work)
		{
		FileData *fd = work->data;
		work = work->next;

		search_result_remove(sd, fd);
		}
	g_list_free(flist);

	search_status_update(sd);
}

static void search_result_edit_selected(SearchData *sd, gint n)
{
	GList *list;

	list = search_result_selection_list(sd);
	start_editor_from_path_list(n, list);
	path_list_free(list);
}

static void search_result_collection_from_selection(SearchData *sd)
{
	CollectWindow *w;
	GList *list;

	list = search_result_selection_list(sd);
	w = collection_window_new(NULL);
	collection_table_add_path_list(w->table, list);
	path_list_free(list);
}

static gint search_result_update_idle_cb(gpointer data)
{
	SearchData *sd = data;

	search_status_update(sd);

	sd->update_idle_id = -1;
	return FALSE;
}

static void search_result_update_idle_cancel(SearchData *sd)
{
	if (sd->update_idle_id != -1) g_source_remove(sd->update_idle_id);
	sd->update_idle_id = -1;
}

static gboolean search_result_select_cb(GtkTreeSelection *selection, GtkTreeModel *store,
					GtkTreePath *tpath, gboolean selected, gpointer data)
{
	SearchData *sd = data;

	if (sd->update_idle_id == -1)
		{
		sd->update_idle_id = g_idle_add(search_result_update_idle_cb, sd);
		}

	return TRUE;
}

/*
 *-------------------------------------------------------------------
 * result list thumbs
 *-------------------------------------------------------------------
 */

static void search_result_thumb_step(SearchData *sd);


static void search_result_thumb_set(SearchData *sd, FileData *fd, GtkTreeIter *iter)
{
	GtkListStore *store;
	GtkTreeIter iter_n;

	store = GTK_LIST_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view)));
	if (!iter)
		{
		if (search_result_find_row(sd, fd, &iter_n) >= 0) iter = &iter_n;
		}

	if (iter) gtk_list_store_set(store, iter, SEARCH_COLUMN_THUMB, fd->pixbuf, -1);
}

static void search_result_thumb_do(SearchData *sd)
{
	FileData *fd;

	if (!sd->thumb_loader || !sd->thumb_fd) return;
	fd = sd->thumb_fd;

	if (fd->pixbuf) g_object_unref(fd->pixbuf);
	fd->pixbuf = thumb_loader_get_pixbuf(sd->thumb_loader, TRUE);

	search_result_thumb_set(sd, fd, NULL);
}

static void search_result_thumb_done_cb(ThumbLoader *tl, gpointer data)
{
	SearchData *sd = data;

	search_result_thumb_do(sd);
	search_result_thumb_step(sd);
}

static void search_result_thumb_step(SearchData *sd)
{
	GtkTreeModel *store;
	GtkTreeIter iter;
	FileData *fd = NULL;
	gint valid;
	gint row = 0;
	gint length = 0;

	if (!sd->thumb_enable) return;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view));

	valid = gtk_tree_model_get_iter_first(store, &iter);
	while (!fd && valid)
		{
		GdkPixbuf *pixbuf;

		length++;
		gtk_tree_model_get(store, &iter, SEARCH_COLUMN_POINTER, &fd, SEARCH_COLUMN_THUMB, &pixbuf, -1);
		if (pixbuf || fd->pixbuf)
			{
			if (!pixbuf) gtk_list_store_set(GTK_LIST_STORE(store), &iter, SEARCH_COLUMN_THUMB, fd->pixbuf, -1);
			row++;
			fd = NULL;
			}
		valid = gtk_tree_model_iter_next(store, &iter);
		}
	if (valid)
		{
		while (gtk_tree_model_iter_next(store, &iter)) length++;
		}

	if (!fd)
		{
		sd->thumb_fd = NULL;
		thumb_loader_free(sd->thumb_loader);
		sd->thumb_loader = NULL;

		search_progress_update(sd, TRUE, -1.0);
		return;
		}

	search_progress_update(sd, FALSE, (gdouble)row/length);

	sd->thumb_fd = fd;
	thumb_loader_free(sd->thumb_loader);
	sd->thumb_loader = thumb_loader_new(thumb_max_width, thumb_max_height);

	thumb_loader_set_callbacks(sd->thumb_loader,
				   search_result_thumb_done_cb,
				   search_result_thumb_done_cb,
				   NULL,
				   sd);
	if (!thumb_loader_start(sd->thumb_loader, fd->path))
		{
		search_result_thumb_do(sd);
		search_result_thumb_step(sd);
		}
}

static void search_result_thumb_height(SearchData *sd)
{
	GtkTreeViewColumn *column;
	GtkCellRenderer *cell;
	GList *list;

	column = gtk_tree_view_get_column(GTK_TREE_VIEW(sd->result_view), SEARCH_COLUMN_THUMB - 1);
	if (!column) return;

	gtk_tree_view_column_set_fixed_width(column, (sd->thumb_enable) ? thumb_max_width : 4);

	list = gtk_tree_view_column_get_cell_renderers(column);
	if (!list) return;
	cell = list->data;
	g_list_free(list);

	g_object_set(G_OBJECT(cell), "height", (sd->thumb_enable) ? thumb_max_height : -1, NULL);
	gtk_tree_view_columns_autosize(GTK_TREE_VIEW(sd->result_view));
}

static void search_result_thumb_enable(SearchData *sd, gint enable)
{
	if (sd->thumb_enable == enable) return;

	if (sd->thumb_enable)
		{
		GtkTreeModel *store;
		GtkTreeIter iter;
		gint valid;

		thumb_loader_free(sd->thumb_loader);
		sd->thumb_loader = NULL;

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(sd->result_view));
		valid = gtk_tree_model_get_iter_first(store, &iter);
		while (valid)
			{
			gtk_list_store_set(GTK_LIST_STORE(store), &iter, SEARCH_COLUMN_THUMB, NULL, -1);
			valid = gtk_tree_model_iter_next(store, &iter);
			}
		search_progress_update(sd, TRUE, -1.0);
		}

	sd->thumb_enable = enable;

	search_result_thumb_height(sd);
	if (!sd->search_folder_list && !sd->search_file_list) search_result_thumb_step(sd);
}

/*
 *-------------------------------------------------------------------
 * result list menu
 *-------------------------------------------------------------------
 */

static void sr_menu_view_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	if (sd->click_fd) layout_image_set_path(NULL, sd->click_fd->path);
}

static void sr_menu_viewnew_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;
	GList *list;

	list = search_result_selection_list(sd);
	view_window_new_from_list(list);
	path_list_free(list);
}

static void sr_menu_select_all_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;
	GtkTreeSelection *selection;

	selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(sd->result_view));
	gtk_tree_selection_select_all(selection);
}

static void sr_menu_select_none_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;
	GtkTreeSelection *selection;

	selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(sd->result_view));
	gtk_tree_selection_unselect_all(selection);
}

static void sr_menu_edit_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd;
	gint n;

	sd = submenu_item_get_data(widget);
	n = GPOINTER_TO_INT(data);
	if (!sd) return;

	search_result_edit_selected(sd, n);
}

static void sr_menu_info_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	info_window_new(NULL, search_result_selection_list(sd));
}

static void sr_menu_collection_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	search_result_collection_from_selection(sd);
}

static void sr_menu_print_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;
	const gchar *path;

	path = (sd->click_fd) ? sd->click_fd->path : NULL;

	print_window_new(path, search_result_selection_list(sd),
			 search_result_get_path_list(sd), sd->window);
}

static void sr_menu_copy_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	file_util_copy(NULL, search_result_selection_list(sd), NULL, sd->window);
}

static void sr_menu_move_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	file_util_move(NULL, search_result_selection_list(sd), NULL, sd->window);
}

static void sr_menu_rename_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	file_util_rename(NULL, search_result_selection_list(sd), sd->window);
}

static void sr_menu_delete_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	file_util_delete(NULL, search_result_selection_list(sd), sd->window);
}

static void sr_menu_remove_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	search_result_remove_selection(sd);
}

static void sr_menu_clear_cb(GtkWidget *widget, gpointer data)
{
	SearchData *sd = data;

	search_result_clear(sd);
}

static GtkWidget *search_result_menu(SearchData *sd, gint on_row, gint empty)
{
	GtkWidget *menu;
	GtkWidget *item;

	menu = popup_menu_short_lived();
	menu_item_add_sensitive(menu, _("_View"), on_row,
				G_CALLBACK(sr_menu_view_cb), sd);
	menu_item_add_stock_sensitive(menu, _("View in _new window"), GTK_STOCK_NEW, on_row,
				      G_CALLBACK(sr_menu_viewnew_cb), sd);
	menu_item_add_divider(menu);
	menu_item_add_sensitive(menu, _("Select all"), !empty,
				G_CALLBACK(sr_menu_select_all_cb), sd);
	menu_item_add_sensitive(menu, _("Select none"), !empty,
				G_CALLBACK(sr_menu_select_none_cb), sd);
	menu_item_add_divider(menu);
	submenu_add_edit(menu, &item, G_CALLBACK(sr_menu_edit_cb), sd);
	if (!on_row) gtk_widget_set_sensitive(item, FALSE);
	menu_item_add_stock_sensitive(menu, _("_Properties"), GTK_STOCK_PROPERTIES, on_row,
				      G_CALLBACK(sr_menu_info_cb), sd);
	menu_item_add_stock_sensitive(menu, _("Add to new collection"), GTK_STOCK_INDEX, on_row,
				      G_CALLBACK(sr_menu_collection_cb), sd);
	menu_item_add_stock_sensitive(menu, _("Print..."), GTK_STOCK_PRINT, on_row,
				      G_CALLBACK(sr_menu_print_cb), sd);
	menu_item_add_divider(menu);
	menu_item_add_stock_sensitive(menu, _("_Copy..."), GTK_STOCK_COPY, on_row,
				      G_CALLBACK(sr_menu_copy_cb), sd);
	menu_item_add_sensitive(menu, _("_Move..."), on_row,
				G_CALLBACK(sr_menu_move_cb), sd);
	menu_item_add_sensitive(menu, _("_Rename..."), on_row,
				G_CALLBACK(sr_menu_rename_cb), sd);
	menu_item_add_stock_sensitive(menu, _("_Delete..."), GTK_STOCK_DELETE, on_row,
				      G_CALLBACK(sr_menu_delete_cb), sd);
	menu_item_add_divider(menu);
	menu_item_add_stock_sensitive(menu, _("Rem_ove"), GTK_STOCK_REMOVE, on_row,
				      G_CALLBACK(sr_menu_remove_cb), sd);
	menu_item_add_stock_sensitive(menu, _("C_lear"), GTK_STOCK_CLEAR, !empty,
				      G_CALLBACK(sr_menu_clear_cb), sd);

	return menu;
}

static void search_result_menu_pos_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
{
	SearchData *sd = data;
	GtkTreePath *tpath;
	gint cx, cy, cw, ch;

	gtk_tree_view_get_cursor(GTK_TREE_VIEW(sd->result_view), &tpath, NULL);
	if (!tpath) return;

	tree_view_get_cell_clamped(GTK_TREE_VIEW(sd->result_view), tpath,
				   SEARCH_COLUMN_NAME - 1, TRUE, &cx, &cy, &cw, &ch);
	gtk_tree_path_free(tpath);
	cy += ch;
	popup_menu_position_clamp(menu, &cx, &cy, 0);
	*x = cx;
	*y = cy;
}

/*
 *-------------------------------------------------------------------
 * result list input
 *-------------------------------------------------------------------
 */

static gint search_result_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
{
	SearchData *sd = data;
	GtkTreeModel *store;
	GtkTreePath *tpath;
	GtkTreeIter iter;
	FileData *fd = NULL;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));

	if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
					  &tpath, NULL, NULL, NULL))
		{
		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, SEARCH_COLUMN_POINTER, &fd, -1);
		gtk_tree_path_free(tpath);
		}

	sd->click_fd = fd;

	if (bevent->button == 3)
		{
		GtkWidget *menu;

		menu = search_result_menu(sd, (fd != NULL), (search_result_count(sd, NULL) == 0));
		gtk_menu_popup(GTK_MENU(menu), NULL, NULL, NULL, NULL, bevent->button, bevent->time);