dirbrowser.c

来自「A GTK sound font editor. Sound font file」· C语言 代码 · 共 373 行

/*==================================================================
 * dirbrowser.c - Directory browser widget
 *
 * Smurf Sound Font Editor
 * Copyright (C) 1999-2001 Josh Green
 *
 * Modified source code from:
 * XMMS - Cross-platform multimedia player
 * Copyright (C) 1998-2000  Peter Alm, Mikael Alm, Olle Hallnas,
 * Thomas Nilsson and 4Front Technologies
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA or point your web browser to http://www.gnu.org.
 *
 * To contact the author of this program:
 * Email: Josh Green <[e-mail]>
 * Smurf homepage: http://smurf.sourceforge.net
 *==================================================================*/

#include <sys/types.h>
#include <sys/stat.h>

#include <dirent.h>
#include <unistd.h>

#include <string.h>

#include <gtk/gtk.h>
#include <stdio.h>

#include "i18n.h"

static char *folder[] = {
  "16 16 8 1",
  " 	c None",
  ".	c #909000",
  "+	c #000000",
  "@	c #EFE8EF",
  "#	c #FFF8CF",
  "$	c #FFF890",
  "%	c #CFC860",
  "&	c #FFC890",
  "                ",
  "  .....+        ",
  " .@##$$.+       ",
  ".%%%%%%%......  ",
  ".###########$%+ ",
  ".#$$$$$$$$$$&%+ ",
  ".#$$$$$$$&$&$%+ ",
  ".#$$$$$$$$&$&%+ ",
  ".#$$$$$&$&$&$%+ ",
  ".#$$$$$$&$&$&%+ ",
  ".#$$$&$&$&$&&%+ ",
  ".#&$&$&$&$&&&%+ ",
  ".%%%%%%%%%%%%%+ ",
  " ++++++++++++++ ",
  "                ",
  "                "
};

/* XPM */
static char *ofolder[] = {
  "16 16 12 1",
  " 	c None",
  ".	c #808080",
  "+	c #E0E0D0",
  "@	c #4F484F",
  "#	c #909000",
  "$	c #FFF8EF",
  "%	c #CFC860",
  "&	c #003090",
  "*	c #7F7800",
  "=	c #FFC890",
  "-	c #FFF890",
  ";	c #2F3000",
  "        .       ",
  "       .+@      ",
  "   ###.$$+@     ",
  "  #%%.$$$$+@    ",
  "  #%.$$$&$$+@** ",
  "  #.+++&+&+++@* ",
  "############++@ ",
  "#$$$$$$$$$=%#++@",
  "#$-------=-=#+; ",
  " #---=--=-==%#; ",
  " #-----=-=-==#; ",
  " #-=--=-=-=-=#; ",
  "  #=-=-=-=-==#; ",
  "  ############; ",
  "   ;;;;;;;;;;;  ",
  "                "
};

static GdkPixmap *folder_pixmap = NULL, *ofolder_pixmap;
static GdkBitmap *folder_mask, *ofolder_mask;

typedef struct
{
  gboolean scanned;
  gchar *path;
}
DirNode;

static gboolean
check_for_subdir (gchar * path)
{
  DIR *dir;
  struct dirent *dirent;
  struct stat statbuf;
  gchar *npath;

  if ((dir = opendir (path)) != NULL)
    {
      while ((dirent = readdir (dir)) != NULL)
	{
	  if (dirent->d_name[0] != '.')
	    {
	      npath = g_strconcat (path, dirent->d_name, NULL);
	      if (stat (npath, &statbuf) != -1 && S_ISDIR (statbuf.st_mode))
		{
		  g_free (npath);
		  closedir (dir);
		  return TRUE;
		}
	      g_free (npath);
	    }
	}
      closedir (dir);
    }
  return FALSE;
}

static void
destroy_cb (gpointer data)
{
  DirNode *node = data;

  g_free (node->path);
  g_free (node);
}

static void
expand_cb (GtkWidget * widget, GtkCTreeNode * parent_node)
{
  DIR *dir;
  struct dirent *dirent;
  gchar *path, *text, *dummy = "dummy";
  struct stat statbuf;
  GtkCTreeNode *node, *sub_node;
  DirNode *parent_dirnode, *dirnode;
  gboolean has_subdir = FALSE;

  parent_dirnode =
    gtk_ctree_node_get_row_data (GTK_CTREE (widget), parent_node);
  if (!parent_dirnode->scanned)
    {
      gtk_clist_freeze (GTK_CLIST (widget));
      node =
	gtk_ctree_find_by_row_data (GTK_CTREE (widget), parent_node, NULL);
      gtk_ctree_remove_node (GTK_CTREE (widget), node);
      if ((dir = opendir (parent_dirnode->path)) != NULL)
	{
	  while ((dirent = readdir (dir)) != NULL)
	    {
	      path = g_strconcat (parent_dirnode->path, dirent->d_name, NULL);
	      if (stat (path, &statbuf) != -1 && S_ISDIR (statbuf.st_mode)
		  && dirent->d_name[0] != '.')
		{
		  dirnode = g_malloc0 (sizeof (DirNode));
		  dirnode->path = g_strconcat (path, G_DIR_SEPARATOR_S, NULL);
		  text = dirent->d_name;
		  if (check_for_subdir (dirnode->path))
		    has_subdir = TRUE;
		  else
		    has_subdir = FALSE;
		  node =
		    gtk_ctree_insert_node (GTK_CTREE (widget), parent_node,
					   NULL, &text, 4, folder_pixmap,
					   folder_mask, ofolder_pixmap,
					   ofolder_mask, !has_subdir, FALSE);
		  gtk_ctree_node_set_row_data_full (GTK_CTREE (widget), node,
						    dirnode, destroy_cb);
		  if (has_subdir)
		    sub_node =
		      gtk_ctree_insert_node (GTK_CTREE (widget), node, NULL,
					     &dummy, 4, NULL, NULL, NULL,
					     NULL, FALSE, FALSE);
		}
	      g_free (path);
	    }
	  closedir (dir);
	  gtk_ctree_sort_node (GTK_CTREE (widget), parent_node);
	}
      gtk_clist_thaw (GTK_CLIST (widget));
      parent_dirnode->scanned = TRUE;
    }
}

static void
ok_clicked (GtkWidget * widget, GtkWidget * tree)
{
  GtkCTreeNode *node;
  DirNode *dirnode;
  GList *list_node;
  GtkWidget *window;
  void (*handler) (gchar *);

  window = gtk_object_get_user_data (GTK_OBJECT (widget));
  gtk_widget_hide (window);
  list_node = GTK_CLIST (tree)->selection;
  while (list_node)
    {
      node = list_node->data;
      dirnode = gtk_ctree_node_get_row_data (GTK_CTREE (tree), node);
      handler =
	(void (*)(gchar *)) gtk_object_get_user_data (GTK_OBJECT (tree));
      if (handler)
	handler (dirnode->path);
      list_node = g_list_next (list_node);
    }
  gtk_widget_destroy (window);

}

static int
filetreeent_compare_func (const void *a, const void *b)
{
  if (!a || !b || !((DirNode *) a)->path)
    return -1;
  return strcmp (((DirNode *) a)->path, (gchar *) b);
}

GtkWidget *
dirbrowse_create (gchar * title, gchar * current_path,
		  gtkselectionmode mode, void (*handler) (gchar *))
{
  GtkWidget *window, *scroll_win, *tree, *vbox, *bbox, *ok, *cancel, *sep;
  gchar *root_text = G_DIR_SEPARATOR_S, *node_text = "dummy";
  gchar *currentdir, *pos, *tpath, *tpathnew;
  GtkCTreeNode *root_node, *node, *nextnode;
  DirNode *dirnode;
  gboolean leaf;

  window = gtk_window_new (GTK_WINDOW_DIALOG);
  gtk_window_set_title (GTK_WINDOW (window), title);
  gtk_container_border_width (GTK_CONTAINER (window), 10);

  vbox = gtk_vbox_new (FALSE, 10);
  gtk_container_add (GTK_CONTAINER (window), vbox);

  scroll_win = gtk_scrolled_window_new (NULL, NULL);
  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scroll_win),
				  GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
  gtk_widget_set_usize (scroll_win, 250, 200);
  gtk_box_pack_start (GTK_BOX (vbox), scroll_win, TRUE, TRUE, 0);
  gtk_widget_show (scroll_win);

  gtk_widget_realize (window);
  if (!folder_pixmap)
    {
      folder_pixmap =
	gdk_pixmap_create_from_xpm_d (window->window, &folder_mask, NULL,
				      folder);
      ofolder_pixmap =
	gdk_pixmap_create_from_xpm_d (window->window, &ofolder_mask, NULL,
				      ofolder);
    }

  tree = gtk_ctree_new (1, 0);
  gtk_clist_set_column_auto_resize (GTK_CLIST (tree), 0, TRUE);
  gtk_clist_set_selection_mode (GTK_CLIST (tree), mode);
  gtk_ctree_set_line_style (GTK_CTREE (tree), GTK_CTREE_LINES_DOTTED);
  gtk_signal_connect (GTK_OBJECT (tree), "tree_expand",
		      GTK_SIGNAL_FUNC (expand_cb), NULL);
  gtk_container_add (GTK_CONTAINER (scroll_win), tree);
  gtk_object_set_user_data (GTK_OBJECT (tree), (gpointer) handler);

  root_node =
    gtk_ctree_insert_node (GTK_CTREE (tree), NULL, NULL, &root_text, 4,
			   folder_pixmap, folder_mask, ofolder_pixmap,
			   ofolder_mask, FALSE, FALSE);
  dirnode = g_malloc0 (sizeof (DirNode));
  dirnode->path = g_strdup (G_DIR_SEPARATOR_S);
  gtk_ctree_node_set_row_data_full (GTK_CTREE (tree), root_node, dirnode,
				    destroy_cb);
  node =
    gtk_ctree_insert_node (GTK_CTREE (tree), root_node, NULL, &node_text, 4,
			   NULL, NULL, NULL, NULL, TRUE, TRUE);
  gtk_ctree_expand (GTK_CTREE (tree), root_node);
  gtk_widget_show (tree);

  sep = gtk_hseparator_new ();
  gtk_box_pack_start (GTK_BOX (vbox), sep, FALSE, FALSE, 0);
  gtk_widget_show (sep);

  bbox = gtk_hbutton_box_new ();
  gtk_button_box_set_layout (GTK_BUTTON_BOX (bbox), GTK_BUTTONBOX_END);
  gtk_button_box_set_spacing (GTK_BUTTON_BOX (bbox), 5);

  ok = gtk_button_new_with_label (_("Ok"));
  gtk_object_set_user_data (GTK_OBJECT (ok), window);
  GTK_WIDGET_SET_FLAGS (ok, GTK_CAN_DEFAULT);
  gtk_window_set_default (GTK_WINDOW (window), ok);
  gtk_box_pack_start (GTK_BOX (bbox), ok, TRUE, TRUE, 0);
  gtk_signal_connect (GTK_OBJECT (ok), "clicked",
		      GTK_SIGNAL_FUNC (ok_clicked), tree);
  gtk_widget_show (ok);

  cancel = gtk_button_new_with_label (_("Cancel"));
  GTK_WIDGET_SET_FLAGS (cancel, GTK_CAN_DEFAULT);
  gtk_box_pack_start (GTK_BOX (bbox), cancel, TRUE, TRUE, 0);
  gtk_signal_connect_object (GTK_OBJECT (cancel), "clicked",
			     GTK_SIGNAL_FUNC (gtk_widget_destroy),
			     GTK_OBJECT (window));
  gtk_widget_show (cancel);

  gtk_box_pack_start (GTK_BOX (vbox), bbox, FALSE, FALSE, 0);
  gtk_widget_show (bbox);
  gtk_widget_show (vbox);

  if (current_path && *current_path)
    {
      currentdir = g_strdup (current_path);
      tpath = g_strdup (G_DIR_SEPARATOR_S);
      pos = strtok (currentdir, G_DIR_SEPARATOR_S);
      node =
	gtk_ctree_find_by_row_data_custom (GTK_CTREE (tree), NULL,
					   G_DIR_SEPARATOR_S,
					   filetreeent_compare_func);
      do
	{
	  tpathnew = g_strconcat (tpath, pos, G_DIR_SEPARATOR_S, NULL);
	  g_free (tpath);
	  tpath = tpathnew;
	  nextnode =
	    gtk_ctree_find_by_row_data_custom (GTK_CTREE (tree), node, tpath,
					       filetreeent_compare_func);
	  if (!nextnode)
	    break;
	  node = nextnode;
	  pos = strtok (NULL, G_DIR_SEPARATOR_S);
	  gtk_ctree_get_node_info (GTK_CTREE (tree), node, NULL, NULL, NULL,
				   NULL, NULL, NULL, &leaf, NULL);
	  if (!leaf && pos)
	    gtk_ctree_expand (GTK_CTREE (tree), node);
	  else
	    {
	      gtk_ctree_select (GTK_CTREE (tree), node);
	      break;
	    }
	}
      while (pos);
      g_free (tpath);
      g_free (currentdir);
    }
  else
    gtk_ctree_select (GTK_CTREE (tree), root_node);

  return window;
}