view_file_list.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。

/*
 * GQview
 * (C) 2004 John Ellis
 *
 * Author: John Ellis
 *
 * This software is released under the GNU General Public License (GNU GPL).
 * Please read the included file COPYING for more information.
 * This software comes with no warranty of any kind, use at your own risk!
 */

#include "gqview.h"
#include "view_file_list.h"

#include "cache_maint.h"
#include "dnd.h"
#include "editors.h"
#include "img-view.h"
#include "info.h"
#include "layout.h"
#include "layout_image.h"
#include "menu.h"
#include "thumb.h"
#include "utilops.h"
#include "ui_bookmark.h"
#include "ui_fileops.h"
#include "ui_menu.h"
#include "ui_tree_edit.h"

#include <gdk/gdkkeysyms.h> /* for keyboard values */


enum {
	FILE_COLUMN_POINTER = 0,
	FILE_COLUMN_THUMB,
	FILE_COLUMN_NAME,
	FILE_COLUMN_SIZE,
	FILE_COLUMN_DATE,
	FILE_COLUMN_COLOR,
	FILE_COLUMN_COUNT
};


static gint vflist_row_is_selected(ViewFileList *vfl, FileData *fd);
static gint vflist_row_rename_cb(TreeEditData *td, const gchar *old, const gchar *new, gpointer data);
static void vflist_populate_view(ViewFileList *vfl);

/*
 *-----------------------------------------------------------------------------
 * signals
 *-----------------------------------------------------------------------------
 */

static void vflist_send_update(ViewFileList *vfl)
{
	if (vfl->func_status) vfl->func_status(vfl, vfl->data_status);
}

/*
 *-----------------------------------------------------------------------------
 * misc
 *-----------------------------------------------------------------------------
 */

static gint vflist_find_row(ViewFileList *vfl, FileData *fd, GtkTreeIter *iter)
{
	GtkTreeModel *store;
	gint valid;
	gint row = 0;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(vfl->listview));
	valid = gtk_tree_model_get_iter_first(store, iter);
	while (valid)
		{
		FileData *fd_n;
		gtk_tree_model_get(GTK_TREE_MODEL(store), iter, FILE_COLUMN_POINTER, &fd_n, -1);
		if (fd_n == fd) return row;

		valid = gtk_tree_model_iter_next(GTK_TREE_MODEL(store), iter);
		row++;
		}

	return -1;
}

static void vflist_color_set(ViewFileList *vfl, FileData *fd, gint color_set)
{
	GtkTreeModel *store;
	GtkTreeIter iter;

	if (vflist_find_row(vfl, fd, &iter) < 0) return;
	store = gtk_tree_view_get_model(GTK_TREE_VIEW(vfl->listview));
	gtk_list_store_set(GTK_LIST_STORE(store), &iter, FILE_COLUMN_COLOR, color_set, -1);
}

static void vflist_move_cursor(ViewFileList *vfl, GtkTreeIter *iter)
{
	GtkTreeModel *store;
	GtkTreePath *tpath;

	store = gtk_tree_view_get_model(GTK_TREE_VIEW(vfl->listview));

	tpath = gtk_tree_model_get_path(store, iter);
	gtk_tree_view_set_cursor(GTK_TREE_VIEW(vfl->listview), tpath, NULL, FALSE);
	gtk_tree_path_free(tpath);
}

/*
 *-----------------------------------------------------------------------------
 * dnd
 *-----------------------------------------------------------------------------
 */

static void vflist_dnd_get(GtkWidget *widget, GdkDragContext *context,
			   GtkSelectionData *selection_data, guint info,
			   guint time, gpointer data)
{
	ViewFileList *vfl = data;
	GList *list = NULL;
	gchar *uri_text = NULL;
	gint total;

	if (!vfl->click_fd) return;

	if (vflist_row_is_selected(vfl, vfl->click_fd))
		{
		list = vflist_selection_get_list(vfl);
		}
	else
		{
		list = g_list_append(NULL, g_strdup(vfl->click_fd->path));
		}

	if (!list) return;

	uri_text = uri_text_from_list(list, &total, (info == TARGET_TEXT_PLAIN));
	path_list_free(list);

	if (debug) printf(uri_text);

	gtk_selection_data_set(selection_data, selection_data->target, 8, uri_text, total);
	g_free(uri_text);
}

static void vflist_dnd_begin(GtkWidget *widget, GdkDragContext *context, gpointer data)
{
	ViewFileList *vfl = data;

	vflist_color_set(vfl, vfl->click_fd, TRUE);

	if (vfl->thumbs_enabled &&
	    vfl->click_fd && vfl->click_fd->pixbuf)
		{
		gint items;

		if (vflist_row_is_selected(vfl, vfl->click_fd))
			items = vflist_selection_count(vfl, NULL);
		else
			items = 1;

		dnd_set_drag_icon(widget, context, vfl->click_fd->pixbuf, items);
		}
}

static void vflist_dnd_end(GtkWidget *widget, GdkDragContext *context, gpointer data)
{
	ViewFileList *vfl = data;

	vflist_color_set(vfl, vfl->click_fd, FALSE);

	if (context->action == GDK_ACTION_MOVE)
		{
		vflist_refresh(vfl);
		}
}

static void vflist_dnd_init(ViewFileList *vfl)
{
	gtk_drag_source_set(vfl->listview, GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
			    dnd_file_drag_types, dnd_file_drag_types_count,
			    GDK_ACTION_COPY | GDK_ACTION_MOVE | GDK_ACTION_LINK);
	g_signal_connect(G_OBJECT(vfl->listview), "drag_data_get",
			 G_CALLBACK(vflist_dnd_get), vfl);
	g_signal_connect(G_OBJECT(vfl->listview), "drag_begin",
			 G_CALLBACK(vflist_dnd_begin), vfl);
	g_signal_connect(G_OBJECT(vfl->listview), "drag_end",
			 G_CALLBACK(vflist_dnd_end), vfl);
}

/*
 *-----------------------------------------------------------------------------
 * pop-up menu
 *-----------------------------------------------------------------------------
 */

static GList *vflist_pop_menu_file_list(ViewFileList *vfl)
{
	if (!vfl->click_fd) return NULL;

	if (vflist_row_is_selected(vfl, vfl->click_fd))
		{
		return vflist_selection_get_list(vfl);
		}

	return g_list_append(NULL, g_strdup(vfl->click_fd->path));
}

static void vflist_pop_menu_edit_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl;
	gint n;
	GList *list;

	vfl = submenu_item_get_data(widget);
	n = GPOINTER_TO_INT(data);

	if (!vfl) return;

	list = vflist_pop_menu_file_list(vfl);
	start_editor_from_path_list(n, list);
	path_list_free(list);
}

static void vflist_pop_menu_info_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	info_window_new(NULL, vflist_pop_menu_file_list(vfl));
}

static void vflist_pop_menu_view_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	if (vflist_row_is_selected(vfl, vfl->click_fd))
		{
		GList *list;

		list = vflist_selection_get_list(vfl);
		view_window_new_from_list(list);
		path_list_free(list);
		}
	else
		{
		const gchar *path;
		
		path = vfl->click_fd->path;
		view_window_new(path);
		}
}

static void vflist_pop_menu_copy_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	file_util_copy(NULL, vflist_pop_menu_file_list(vfl), NULL, vfl->listview);
}

static void vflist_pop_menu_move_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	file_util_move(NULL, vflist_pop_menu_file_list(vfl), NULL, vfl->listview);
}

static void vflist_pop_menu_rename_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;
	GList *list;

	list = vflist_pop_menu_file_list(vfl);
	if (enable_in_place_rename &&
	    list && !list->next && vfl->click_fd)
		{
		GtkTreeModel *store;
		GtkTreeIter iter;

		path_list_free(list);

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(vfl->listview));
		if (vflist_find_row(vfl, vfl->click_fd, &iter) >= 0)
			{
			GtkTreePath *tpath;

			tpath = gtk_tree_model_get_path(store, &iter);
			tree_edit_by_path(GTK_TREE_VIEW(vfl->listview), tpath,
					  FILE_COLUMN_NAME -1, vfl->click_fd->name,
					  vflist_row_rename_cb, vfl);
			gtk_tree_path_free(tpath);
			}
		return;
		}

	file_util_rename(NULL, list, vfl->listview);
}

static void vflist_pop_menu_delete_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	file_util_delete(NULL, vflist_pop_menu_file_list(vfl), vfl->listview);
}

static void vflist_pop_menu_sort_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl;
	SortType type;
	
	vfl = submenu_item_get_data(widget);
	if (!vfl) return;

	type = (SortType)GPOINTER_TO_INT(data);

	if (vfl->layout)
		{
		layout_sort_set(vfl->layout, type, vfl->sort_ascend);
		}
	else
		{
		vflist_sort_set(vfl, type, vfl->sort_ascend);
		}
}

static void vflist_pop_menu_sort_ascend_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	if (vfl->layout)
		{
		layout_sort_set(vfl->layout, vfl->sort_method, !vfl->sort_ascend);
		}
	else
		{
		vflist_sort_set(vfl, vfl->sort_method, !vfl->sort_ascend);
		}
}

static void vflist_pop_menu_icons_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	if (vfl->layout) layout_views_set(vfl->layout, vfl->layout->tree_view, TRUE);
}

static void vflist_pop_menu_thumbs_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	vflist_color_set(vfl, vfl->click_fd, FALSE);
	if (vfl->layout)
		{
		layout_thumb_set(vfl->layout, !vfl->thumbs_enabled);
		}
	else
		{
		vflist_thumb_set(vfl, !vfl->thumbs_enabled);
		}
}

static void vflist_pop_menu_refresh_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;

	vflist_color_set(vfl, vfl->click_fd, FALSE);
	vflist_refresh(vfl);
}

static void vflist_popup_destroy_cb(GtkWidget *widget, gpointer data)
{
	ViewFileList *vfl = data;
	vflist_color_set(vfl, vfl->click_fd, FALSE);
	vfl->click_fd = NULL;
	vfl->popup = NULL;
}

static GtkWidget *vflist_pop_menu(ViewFileList *vfl, FileData *fd)
{
	GtkWidget *menu;
	GtkWidget *item;
	GtkWidget *submenu;
	gint active;

	vflist_color_set(vfl, fd, TRUE);
	active = (fd != NULL);

	menu = popup_menu_short_lived();
	g_signal_connect(G_OBJECT(menu), "destroy",
			 G_CALLBACK(vflist_popup_destroy_cb), vfl);

	submenu_add_edit(menu, &item, G_CALLBACK(vflist_pop_menu_edit_cb), vfl);
	gtk_widget_set_sensitive(item, active);

	menu_item_add_stock_sensitive(menu, _("_Properties"), GTK_STOCK_PROPERTIES, active,
				      G_CALLBACK(vflist_pop_menu_info_cb), vfl);
	menu_item_add_stock_sensitive(menu, _("View in _new window"), GTK_STOCK_NEW, active,
				      G_CALLBACK(vflist_pop_menu_view_cb), vfl);

	menu_item_add_divider(menu);
	menu_item_add_stock_sensitive(menu, _("_Copy..."), GTK_STOCK_COPY, active,
				      G_CALLBACK(vflist_pop_menu_copy_cb), vfl);
	menu_item_add_sensitive(menu, _("_Move..."), active,
				G_CALLBACK(vflist_pop_menu_move_cb), vfl);
	menu_item_add_sensitive(menu, _("_Rename..."), active,
				G_CALLBACK(vflist_pop_menu_rename_cb), vfl);
	menu_item_add_stock_sensitive(menu, _("_Delete..."), GTK_STOCK_DELETE, active,
				G_CALLBACK(vflist_pop_menu_delete_cb), vfl);

	menu_item_add_divider(menu);

	submenu = submenu_add_sort(NULL, G_CALLBACK(vflist_pop_menu_sort_cb), vfl,
				   FALSE, FALSE, TRUE, vfl->sort_method);
	menu_item_add_divider(submenu);
	menu_item_add_check(submenu, _("Ascending"), vfl->sort_ascend,
			    G_CALLBACK(vflist_pop_menu_sort_ascend_cb), vfl);

	item = menu_item_add(menu, _("_Sort"), NULL, NULL);
	gtk_menu_item_set_submenu(GTK_MENU_ITEM(item), submenu);

	menu_item_add_check(menu, _("View as _icons"), FALSE,
			    G_CALLBACK(vflist_pop_menu_icons_cb), vfl);
	menu_item_add_check(menu, _("Show _thumbnails"), vfl->thumbs_enabled,
			    G_CALLBACK(vflist_pop_menu_thumbs_cb), vfl);
	menu_item_add_stock(menu, _("Re_fresh"), GTK_STOCK_REFRESH, G_CALLBACK(vflist_pop_menu_refresh_cb), vfl);

	return menu;
}

/*
 *-----------------------------------------------------------------------------
 * callbacks
 *-----------------------------------------------------------------------------
 */

static gint vflist_row_rename_cb(TreeEditData *td, const gchar *old, const gchar *new, gpointer data)
{
	ViewFileList *vfl = data;
	gchar *old_path;
	gchar *new_path;

	if (strlen(new) == 0) return FALSE;

	old_path = concat_dir_and_file(vfl->path, old);
	new_path = concat_dir_and_file(vfl->path, new);

	if (strchr(new, '/') != NULL)
		{
		gchar *text = g_strdup_printf(_("Invalid file name:\n%s"), new);
		file_util_warning_dialog(_("Error renaming file"), text, GTK_STOCK_DIALOG_ERROR, vfl->listview);
		g_free(text);
		}
	else if (isfile(new_path))
		{
		gchar *text = g_strdup_printf(_("A file with name %s already exists."), new);
		file_util_warning_dialog(_("Error renaming file"), text, GTK_STOCK_DIALOG_ERROR, vfl->listview);
		g_free(text);
		}
	else if (!rename_file(old_path, new_path))
		{
		gchar *text = g_strdup_printf(_("Unable to rename file:\n%s\nto:\n%s"), old, new);
		file_util_warning_dialog(_("Error renaming file"), text, GTK_STOCK_DIALOG_ERROR, vfl->listview);
		g_free(text);
		}
	else
		{
		file_maint_renamed(old_path, new_path);
		}

	g_free(old_path);
	g_free(new_path);

	return FALSE;
}

static void vflist_menu_position_cb(GtkMenu *menu, gint *x, gint *y, gboolean *push_in, gpointer data)
{
	ViewFileList *vfl = data;
	GtkTreeModel *store;
	GtkTreeIter iter;
	GtkTreePath *tpath;
	gint cw, ch;

	if (vflist_find_row(vfl, vfl->click_fd, &iter) < 0) return;
	store = gtk_tree_view_get_model(GTK_TREE_VIEW(vfl->listview));
	tpath = gtk_tree_model_get_path(store, &iter);
	tree_view_get_cell_clamped(GTK_TREE_VIEW(vfl->listview), tpath, FILE_COLUMN_NAME - 1, TRUE, x, y, &cw, &ch);
	gtk_tree_path_free(tpath);
	*y += ch;
	popup_menu_position_clamp(menu, x, y, 0);
}

static gint vflist_press_key_cb(GtkWidget *widget, GdkEventKey *event, gpointer data)
{
	ViewFileList *vfl = data;
	GtkTreePath *tpath;

	if (event->keyval != GDK_Menu) return FALSE;

	gtk_tree_view_get_cursor(GTK_TREE_VIEW(vfl->listview), &tpath, NULL);
	if (tpath)
		{
		GtkTreeModel *store;
		GtkTreeIter iter;

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, FILE_COLUMN_POINTER, &vfl->click_fd, -1);
		gtk_tree_path_free(tpath);
		}
	else
		{
		vfl->click_fd = NULL;
		}

	vfl->popup = vflist_pop_menu(vfl, vfl->click_fd);
	gtk_menu_popup(GTK_MENU(vfl->popup), NULL, NULL, vflist_menu_position_cb, vfl, 0, GDK_CURRENT_TIME);

	return TRUE;
}

static gint vflist_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
{
	ViewFileList *vfl = data;
	GtkTreePath *tpath;
	GtkTreeIter iter;
	FileData *fd = NULL;

	if (gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
					  &tpath, NULL, NULL, NULL))
		{
		GtkTreeModel *store;

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, FILE_COLUMN_POINTER, &fd, -1);
#if 0
		gtk_tree_view_set_cursor(GTK_TREE_VIEW(widget), tpath, NULL, FALSE);
#endif
		gtk_tree_path_free(tpath);
		}

	vfl->click_fd = fd;

	if (bevent->button == 3)
		{
		vfl->popup = vflist_pop_menu(vfl, vfl->click_fd);
		gtk_menu_popup(GTK_MENU(vfl->popup), NULL, NULL, NULL, NULL,
				bevent->button, bevent->time);
		return TRUE;
		}

	if (!fd) return FALSE;

	if (bevent->button == 2)
		{
		if (!vflist_row_is_selected(vfl, fd))
			{
			vflist_color_set(vfl, fd, TRUE);
			}
		return TRUE;
		}


	if (bevent->button == 1 && bevent->type == GDK_BUTTON_PRESS &&
	    !(bevent->state & GDK_SHIFT_MASK ) &&
	    !(bevent->state & GDK_CONTROL_MASK ) &&
	    vflist_row_is_selected(vfl, fd))
		{
		gtk_widget_grab_focus(widget);
		return TRUE;
		}

#if 0
	if (bevent->button == 1 && bevent->type == GDK_2BUTTON_PRESS)
		{
		if (vfl->layout) layout_image_full_screen_start(vfl->layout);
		}
#endif

	return FALSE;
}

static gint vflist_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
{
	ViewFileList *vfl = data;
	GtkTreePath *tpath;
	GtkTreeIter iter;
	FileData *fd = NULL;

	if (bevent->button == 2)
		{
		vflist_color_set(vfl, vfl->click_fd, FALSE);
		}

	if (bevent->button != 1 && bevent->button != 2)
		{
		return TRUE;
		}

	if ((bevent->x != 0 || bevent->y != 0) &&
	    gtk_tree_view_get_path_at_pos(GTK_TREE_VIEW(widget), bevent->x, bevent->y,
					  &tpath, NULL, NULL, NULL))
		{
		GtkTreeModel *store;

		store = gtk_tree_view_get_model(GTK_TREE_VIEW(widget));
		gtk_tree_model_get_iter(store, &iter, tpath);
		gtk_tree_model_get(store, &iter, FILE_COLUMN_POINTER, &fd, -1);