@@ -1,3 +1,6 @@ 
+2009-07-14
+- play with some tint2conf code
+
 2009-07-04
 - fixed 'defunct' process after fork
 

@@ -0,0 +1,54 @@ 
+/**************************************************************************
+*
+* Tint2conf
+*
+* Copyright (C) 2009 Thierry lorthiois (lorthiois@bbsoft.fr)
+*
+* This program is free software; you can redistribute it and/or
+* modify it under the terms of the GNU General Public License version 2
+* as published by the Free Software Foundation.
+*
+* 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+**************************************************************************/
+
+#include <string>
+#include <stdio.h>
+#include <gtkmm.h>
+#include <glib.h>
+
+#include "mainwin.h"
+
+
+// g++ `pkg-config --libs --cflags gtkmm-2.4 --libs gthread-2.0` -o tint2conf main.cpp mainwin.cpp thumbview.cpp
+
+int main (int argc, char ** argv)
+{
+	// set up i18n
+	//bindtextdomain(PACKAGE, LOCALEDIR);
+	//bind_textdomain_codeset(PACKAGE, "UTF-8");
+	//textdomain(PACKAGE);
+
+	Gtk::Main kit(argc, argv);
+	Glib::thread_init();
+
+	MainWin window;
+
+	window.view.set_dir("");
+	window.view.load_dir();
+
+	// rig up idle/thread routines
+	Glib::Thread::create(sigc::mem_fun(window.view, &Thumbview::load_cache_images), true);
+	Glib::Thread::create(sigc::mem_fun(window.view, &Thumbview::create_cache_images), true);
+
+	//Shows the window and returns when it is closed.
+	Gtk::Main::run(window);
+
+	return 0;
+}
+

@@ -0,0 +1,140 @@ 
+
+#include <gtkmm/stock.h>
+#include <iostream>
+#include "mainwin.h"
+
+
+MainWin::MainWin()
+{
+	set_title("Tint2 config");
+	set_default_size(600, 350);
+
+	add(m_Box); // put a MenuBar at the top of the box and other stuff below it.
+
+	//Create actions for menus and toolbars:
+	m_refActionGroup = Gtk::ActionGroup::create();
+
+	//File menu:
+	m_refActionGroup->add(Gtk::Action::create("FileMenu", "File"));
+	//Sub-menu.
+	m_refActionGroup->add(Gtk::Action::create("FileOpen", Gtk::Stock::OPEN, "_Open", "Open config file"), sigc::mem_fun(*this, &MainWin::on_menu_file_new_generic));
+	m_refActionGroup->add(Gtk::Action::create("FileSaveAs", Gtk::Stock::SAVE_AS, "_Save As", "Save config as"), sigc::mem_fun(*this, &MainWin::on_menu_file_new_generic));
+	m_refActionGroup->add(Gtk::Action::create("FileRefreshAll", Gtk::Stock::REFRESH, "_Refresh all", "Refresh all config file"), sigc::mem_fun(*this, &MainWin::on_menu_file_new_generic));
+	m_refActionGroup->add(Gtk::Action::create("FileQuit", Gtk::Stock::QUIT), sigc::mem_fun(*this, &MainWin::on_menu_file_quit));
+
+	//Edit menu:
+	m_refActionGroup->add(Gtk::Action::create("EditMenu", "Edit"));
+	m_refActionGroup->add(Gtk::Action::create("EditProperties", Gtk::Stock::PROPERTIES, "_Properties...", "Show properties"), sigc::mem_fun(*this, &MainWin::on_menu_others));
+	m_refActionGroup->add(Gtk::Action::create("EditRename", "_Rename...", "Rename current config"), sigc::mem_fun(*this, &MainWin::on_menu_others));
+	m_refActionGroup->add(Gtk::Action::create("EditDelete", Gtk::Stock::DELETE), sigc::mem_fun(*this, &MainWin::on_menu_others));
+	m_refActionGroup->add(Gtk::Action::create("EditApply", Gtk::Stock::APPLY, "_Apply", "Apply current config"), sigc::mem_fun(*this, &MainWin::on_menu_others));
+	m_refActionGroup->add(Gtk::Action::create("EditRefresh", Gtk::Stock::REFRESH), sigc::mem_fun(*this, &MainWin::on_menu_others));
+
+	//Help menu:
+	m_refActionGroup->add( Gtk::Action::create("HelpMenu", "Help") );
+	m_refActionGroup->add( Gtk::Action::create("About", Gtk::Stock::ABOUT), sigc::mem_fun(*this, &MainWin::on_menu_about) );
+
+	m_refUIManager = Gtk::UIManager::create();
+	m_refUIManager->insert_action_group(m_refActionGroup);
+
+	add_accel_group(m_refUIManager->get_accel_group());
+
+	//Layout the actions in a menubar and toolbar:
+	Glib::ustring ui_info =
+        "<ui>"
+        "  <menubar name='MenuBar'>"
+        "    <menu action='FileMenu'>"
+        "      <menuitem action='FileOpen'/>"
+        "      <menuitem action='FileSaveAs'/>"
+        "      <separator/>"
+        "      <menuitem action='FileRefreshAll'/>"
+        "      <separator/>"
+        "      <menuitem action='FileQuit'/>"
+        "    </menu>"
+        "    <menu action='EditMenu'>"
+        "      <menuitem action='EditProperties'/>"
+        "      <menuitem action='EditRename'/>"
+        "      <separator/>"
+        "      <menuitem action='EditDelete'/>"
+        "      <separator/>"
+        "      <menuitem action='EditRefresh'/>"
+        "    </menu>"
+        "    <menu action='HelpMenu'>"
+        "      <menuitem action='About'/>"
+        "    </menu>"
+        "  </menubar>"
+        "  <toolbar  name='ToolBar'>"
+        "    <toolitem action='FileRefreshAll'/>"
+        "    <separator/>"
+        "    <toolitem action='EditProperties'/>"
+        "    <toolitem action='EditApply'/>"
+        "  </toolbar>"
+        "</ui>";
+
+	#ifdef GLIBMM_EXCEPTIONS_ENABLED
+	try
+	{
+		m_refUIManager->add_ui_from_string(ui_info);
+	}
+	catch(const Glib::Error& ex)
+	{
+		std::cerr << "building menus failed: " <<  ex.what();
+	}
+	#else
+	std::auto_ptr<Glib::Error> ex;
+	m_refUIManager->add_ui_from_string(ui_info, ex);
+	if(ex.get())
+	{
+		std::cerr << "building menus failed: " <<  ex->what();
+	}
+	#endif //GLIBMM_EXCEPTIONS_ENABLED
+
+  //Get the menubar and toolbar widgets, and add them to a container widget:
+  Gtk::Widget* pMenubar = m_refUIManager->get_widget("/MenuBar");
+  if(pMenubar)
+		m_Box.pack_start(*pMenubar, Gtk::PACK_SHRINK);
+
+  Gtk::Widget* pToolbar = m_refUIManager->get_widget("/ToolBar") ;
+  if(pToolbar)
+		m_Box.pack_start(*pToolbar, Gtk::PACK_SHRINK);
+
+
+	m_Box.add(view);
+
+	show_all_children();
+}
+
+MainWin::~MainWin()
+{
+}
+
+
+void MainWin::on_menu_file_quit()
+{
+	hide();
+}
+
+
+void MainWin::on_menu_file_new_generic()
+{
+	std::cout << "A File|New menu item was selected." << std::endl;
+}
+
+
+void MainWin::on_menu_others()
+{
+	std::cout << "A menu item was selected." << std::endl;
+}
+
+
+void MainWin::on_menu_about()
+{
+	Glib::ustring message = "tint2conf " + Glib::ustring(VERSION);
+	Gtk::MessageDialog dialog(*this, message);
+
+	dialog.set_title("About tint2conf");
+	dialog.set_secondary_text("Config tool for tint2.\n\nCopyright (C) 2009 Thierry lorthiois.    \nRefer to source code from Nitrogen\nby Dave Foster & Javeed Shaikh.");
+
+	dialog.run();
+}
+

@@ -0,0 +1,33 @@ 
+#ifndef TINT2CONF_MAINWIN_H
+#define TINT2CONF_MAINWIN_H
+
+#include <gtkmm.h>
+#include "thumbview.h"
+
+#define VERSION "0.2"
+
+
+class MainWin : public Gtk::Window
+{
+public:
+  MainWin();
+  virtual ~MainWin();
+
+	Thumbview view;
+protected:
+  //Signal handlers:
+  void on_menu_file_new_generic();
+  void on_menu_file_quit();
+  void on_menu_others();
+  void on_menu_about();
+
+  //Child widgets:
+  Gtk::VBox m_Box;
+
+  Glib::RefPtr<Gtk::UIManager> m_refUIManager;
+  Glib::RefPtr<Gtk::ActionGroup> m_refActionGroup;
+  Glib::RefPtr<Gtk::RadioAction> m_refChoiceOne, m_refChoiceTwo;
+};
+
+#endif
+

@@ -0,0 +1,641 @@ 
+/*
+
+This file is from Nitrogen, an X11 background setter.
+Copyright (C) 2006  Dave Foster & Javeed Shaikh
+
+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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+*/
+
+//#include "md5.h"
+#include <glib/gstdio.h>
+#include <png.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <iostream>
+#include "thumbview.h"
+//#include "Config.h"
+//#include "Util.h"
+//#include "gcs-i18n.h"
+
+/**
+ * Returns the last modified time of a file.
+ * @param file The name of the file to get the modified time for.
+ */
+static time_t get_file_mtime(std::string file) {
+	struct stat buf;
+	if (stat(file.c_str(), &buf) == -1) return 0; // error
+	return buf.st_mtime;
+}
+
+/**
+ * Returns the value of the "tEXt::Thumb::MTime" key for fd.o style thumbs.
+ * @param pixbuf The pixbuf of the fd.o thumbnail.
+ */
+static time_t get_fdo_thumbnail_mtime(Glib::RefPtr<Gdk::Pixbuf> pixbuf) {
+	std::string mtime_str = pixbuf->get_option("tEXt::Thumb::MTime");
+	std::stringstream stream(mtime_str);
+	time_t mtime = 0;
+	stream >> mtime;
+	return mtime;
+}
+
+void DelayLoadingStore::get_value_vfunc (const iterator& iter, int column, Glib::ValueBase& value) const
+{
+	g_async_queue_ref(aqueue_loadthumbs);
+	Gtk::ListStore::get_value_vfunc(iter, column, value);
+
+	Gtk::TreeModel::Row row = *iter;
+	if (column == 0)
+	{
+		Glib::Value< Glib::RefPtr<Gdk::Pixbuf> > base;
+		Gtk::ListStore::get_value_vfunc(iter, column, base);
+
+		Glib::RefPtr<Gdk::Pixbuf> thumb = base.get();
+
+		if (thumb == thumbview->loading_image && !row[thumbview->record.LoadingThumb])
+		{
+			TreePair* tp = new TreePair();
+			tp->file = row[thumbview->record.Filename];
+			tp->iter = iter;
+
+			row[thumbview->record.LoadingThumb] = true;
+
+			//Util::program_log("Custom model: planning on loading %s\n", tp->file.c_str());
+
+			g_async_queue_push(aqueue_loadthumbs, (gpointer)tp);
+		}
+	}
+	g_async_queue_unref(aqueue_loadthumbs);
+}
+
+/**
+ * Constructor, sets up gtk stuff, inits data and queues
+ */
+Thumbview::Thumbview() : dir("") {
+	set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
+	set_shadow_type (Gtk::SHADOW_IN);
+
+    // load map of setbgs (need this for add_file)
+    load_map_setbgs();
+
+	// make our async queues
+	this->aqueue_loadthumbs = g_async_queue_new();
+	this->aqueue_createthumbs = g_async_queue_new();
+	this->aqueue_donethumbs = g_async_queue_new();
+
+	// create store
+	store = DelayLoadingStore::create (record);
+	store->set_queue(aqueue_loadthumbs);
+	store->set_thumbview(this);
+
+	// setup view
+	view.set_model (store);
+	view.set_headers_visible (FALSE);
+	view.set_fixed_height_mode (TRUE);
+	view.set_rules_hint (TRUE);
+
+	// set cell renderer proprties
+	rend.property_ellipsize () = Pango::ELLIPSIZE_END;
+	rend.set_property ("ellipsize", Pango::ELLIPSIZE_END);
+	rend.property_weight () = Pango::WEIGHT_BOLD;
+
+	rend_img.set_fixed_size(105, 82);
+
+	// make treeviewcolumns
+	this->col_thumb = new Gtk::TreeViewColumn("thumbnail", this->rend_img);
+	this->col_desc = new Gtk::TreeViewColumn("description", this->rend);
+
+	col_thumb->add_attribute (rend_img, "pixbuf", record.Thumbnail);
+	col_thumb->set_sizing(Gtk::TREE_VIEW_COLUMN_FIXED);
+	col_thumb->set_fixed_width(105);
+	col_desc->add_attribute (rend, "markup", record.Description);
+	col_desc->set_sort_column (record.Filename);
+	col_desc->set_sort_indicator (true);
+	col_desc->set_sort_order (Gtk::SORT_ASCENDING);
+	col_desc->set_sizing(Gtk::TREE_VIEW_COLUMN_FIXED);
+
+	view.append_column (*col_thumb);
+	view.append_column (*col_desc);
+
+	// enable search
+	view.set_search_column (record.Description);
+	view.set_search_equal_func (sigc::mem_fun (this, &Thumbview::search_compare));
+
+	// load loading image, which not all themes seem to provide
+	try {
+		this->loading_image = Gtk::IconTheme::get_default()->load_icon("image-loading", 64, Gtk::ICON_LOOKUP_FORCE_SVG);
+	} catch (Gtk::IconThemeError e) {}
+
+	// init dispatcher
+	this->dispatch_thumb.connect(sigc::mem_fun(this, &Thumbview::handle_dispatch_thumb));
+
+	col_desc->set_expand ();
+
+	add (view);
+
+	view.show ();
+	show ();
+}
+
+/**
+ * Destructor
+ */
+Thumbview::~Thumbview() {
+	g_async_queue_unref(this->aqueue_loadthumbs);
+	g_async_queue_unref(this->aqueue_createthumbs);
+	g_async_queue_unref(this->aqueue_donethumbs);
+}
+
+/**
+ * Adds the given file to the tree view and pushes it onto the thumbnail
+ * creation queue.
+ *
+ * @param filename The name of the file to add.
+ *
+ */
+void Thumbview::add_file(std::string filename) {
+    Gtk::Window *window = dynamic_cast<Gtk::Window*>(get_toplevel());
+	Gtk::TreeModel::iterator iter = this->store->append ();
+	Gtk::TreeModel::Row row = *iter;
+	Glib::RefPtr<Gdk::Pixbuf> thumb = this->loading_image;
+	row[record.Thumbnail] = thumb;
+	row[record.Filename] = filename;
+	row[record.Description] = Glib::ustring(filename, filename.rfind ("/")+1);
+
+    for (std::map<Glib::ustring, Glib::ustring>::iterator i = map_setbgs.begin(); i!=map_setbgs.end(); i++)
+    {
+        if (filename == (*i).second)
+        {
+            row[record.CurBGOnDisp] = (*i).first;
+//            row[record.Description] = Util::make_current_set_string(window, filename, (*i).first);
+        }
+    }
+
+	// for modified time
+	row[record.Time] = get_file_mtime(filename);
+
+//	Util::program_log("add_file(): Adding file %s\n", filename.c_str());
+
+	// push it on the thumb queue
+//	TreePair *tp = new TreePair();
+//	tp->file = filename;
+//	tp->iter = iter;
+
+//	queue_thumbs.push(tp);
+}
+
+
+/**
+ * Opens the internal directory and starts reading files into the async queue.
+ */
+void Thumbview::load_dir(std::string dir) {
+	if (!dir.length()) dir = this->dir;
+
+	std::queue<Glib::ustring> subdirs;
+	Glib::Dir *dirhandle;
+
+	// push the initial dir back onto subdirs
+	subdirs.push(dir);
+
+	// loop it
+	while ( ! subdirs.empty() ) {
+
+		// pop first
+		Glib::ustring curdir = subdirs.front();
+		subdirs.pop();
+
+		try {
+			dirhandle = new Glib::Dir(curdir);
+//			Util::program_log("load_dir(): Opening dir %s\n", curdir.c_str());
+
+		} catch (Glib::FileError e) {
+			std::cerr << "Could not open dir" << " " << this->dir << ": " << e.what() << "\n";
+			continue;
+		}
+
+#ifdef USE_INOTIFY
+
+		// check if we're already monitoring this dir.
+		if (watches.find(curdir) == watches.end()) {
+			// this dir was successfully opened. monitor it for changes with inotify.
+			// the Watch will be cleaned up automatically if the dir is deleted.
+			Inotify::Watch * watch = Inotify::Watch::create(curdir);
+			if (watch) {
+				// no error occurred.
+
+				// emitted when a file is deleted in this dir.
+				watch->signal_deleted.connect(sigc::mem_fun(this,
+					&Thumbview::file_deleted_callback));
+				// emitted when a file is modified or created in this dir.
+				watch->signal_write_closed.connect(sigc::mem_fun(this,
+					&Thumbview::file_changed_callback));
+				// two signals that are emitted when a file is renamed in this dir.
+				// the best way to handle this IMO is to remove the file upon receiving
+				// 'moved_from', and then to add the file upon receiving 'moved_to'.
+				watch->signal_moved_from.connect(sigc::mem_fun(this,
+					&Thumbview::file_deleted_callback));
+				watch->signal_moved_to.connect(sigc::mem_fun(this,
+					&Thumbview::file_changed_callback));
+				watch->signal_created.connect(sigc::mem_fun(this,
+					&Thumbview::file_created_callback));
+
+				watches[curdir] = watch;
+			}
+		}
+
+#endif
+
+		for (Glib::Dir::iterator i = dirhandle->begin(); i != dirhandle->end(); i++) {
+			Glib::ustring fullstr = curdir + Glib::ustring("/");
+			try {
+				fullstr += /*Glib::filename_to_utf8(*/*i;//);
+			} catch (Glib::ConvertError& error) {
+				std::cerr << "Invalid UTF-8 encountered. Skipping file" << " " << *i << std::endl;
+				continue;
+			}
+
+			if ( Glib::file_test(fullstr, Glib::FILE_TEST_IS_DIR) )
+			{
+//				if ( Config::get_instance()->get_recurse() )
+//					subdirs.push(fullstr);
+			}
+			else {
+				if ( this->is_image(fullstr) ) {
+					add_file(fullstr);
+				}
+			}
+		}
+
+		delete dirhandle;
+	}
+}
+
+/**
+ * Tests the file to see if it is an image
+ * TODO: come up with less sux way of doing it than extension
+ *
+ * @param	file	The filename to test
+ * @return			If its an image or not
+ */
+bool Thumbview::is_image(std::string file) {
+	if (file.find (".jpg")  != std::string::npos ||
+		file.find (".JPG")  != std::string::npos ||
+		file.find (".jpeg") != std::string::npos ||
+		file.find (".JPEG") != std::string::npos )
+		return true;
+
+	return false;
+}
+
+/**
+ * Determines the full path to a cache file.  Does all creation of dirs.
+ * TODO: should throw exception if we cannot create the dirs!
+ *
+ * @param	file	The file to convert, calls cache_name on it
+ * @return			The full path to
+ */
+Glib::ustring Thumbview::cache_file(Glib::ustring file) {
+
+	Glib::ustring urifile = Glib::filename_to_uri(file);
+/*
+	// compute md5 of file's uri
+	md5_state_t state;
+	md5_byte_t digest[16];
+	md5_init(&state);
+	md5_append(&state, (const md5_byte_t *)urifile.c_str(), strlen(urifile.c_str()));
+	md5_finish(&state, digest);
+
+	char *buf = new char[3];
+	char *full = new char[33];
+	full[0] = '\0';
+
+	for (int di = 0; di < 16; ++di) {
+		sprintf(buf, "%02x", digest[di]);
+		strcat(full, buf);
+	}
+
+	Glib::ustring md5file = Glib::ustring(full) + Glib::ustring(".png");
+	delete [] buf;
+	delete [] full;
+
+	// build dir paths
+	Glib::ustring halfref = Glib::build_filename(Glib::get_home_dir(),".thumbnails/");
+	halfref = Glib::build_filename(halfref, "normal/");
+
+	if ( !Glib::file_test(halfref, Glib::FILE_TEST_EXISTS) )
+		if ( g_mkdir_with_parents(halfref.c_str(), 0700) == -1)
+			// TODO: exception
+			return "FAIL";
+
+	// add and return
+	return Glib::build_filename(halfref, md5file);
+*/
+	return urifile;
+}
+
+/**
+ * Creates cache images that show up in its queue.
+ */
+void Thumbview::load_cache_images()
+{
+	g_async_queue_ref(this->aqueue_loadthumbs);
+	g_async_queue_ref(this->aqueue_donethumbs);
+
+	while(1)
+	{
+		// remove first item (blocks until an item occurs)
+		TreePair *p = (TreePair*)g_async_queue_pop(this->aqueue_loadthumbs);
+
+		Glib::ustring file = p->file;
+		Glib::ustring cachefile = this->cache_file(file);
+
+		// branch to see if we need to load or create cache file
+		if ( !Glib::file_test(cachefile, Glib::FILE_TEST_EXISTS) ) {
+			g_async_queue_push(this->aqueue_createthumbs,(gpointer)p);
+		} else {
+			// load thumb
+			Glib::RefPtr<Gdk::Pixbuf> pb = Gdk::Pixbuf::create_from_file(this->cache_file(file));
+
+			// resize if we need to
+			if (pb->get_width() > 100 || pb->get_height() > 80)
+			{
+				int pbwidth = pb->get_width();
+				int pbheight = pb->get_height();
+				float ratio = (float)pbwidth / (float)pbheight;
+
+				int newwidth, newheight;
+
+				if (abs(100 - pbwidth) > abs(80 - pbheight))
+				{
+					// cap to vertical
+					newheight = 80;
+					newwidth = newheight * ratio;
+				}
+				else
+				{
+					// cap to horiz
+					newwidth = 100;
+					newheight = newwidth / ratio;
+				}
+
+				pb = pb->scale_simple(newwidth, newheight, Gdk::INTERP_NEAREST);
+			}
+
+			if (get_fdo_thumbnail_mtime(pb) < get_file_mtime(file)) {
+				// the thumbnail is old. we need to make a new one.
+				pb.clear();
+				g_async_queue_push(this->aqueue_createthumbs,(gpointer)p);
+			} else {
+				// display it
+				TreePair *sendp = new TreePair();
+				sendp->file = file;
+				sendp->iter = p->iter;
+				sendp->thumb = pb;
+
+				g_async_queue_push(this->aqueue_donethumbs, (gpointer)sendp);
+
+				this->dispatch_thumb.emit();
+
+				delete p;
+			}
+		}
+	}
+
+	g_async_queue_unref(this->aqueue_loadthumbs);
+	g_async_queue_unref(this->aqueue_donethumbs);
+	throw Glib::Thread::Exit();
+}
+
+/**
+ * Thread function to create thumbnail cache images for those that do not exist.
+ */
+void Thumbview::create_cache_images()
+{
+	Glib::RefPtr<Gdk::Pixbuf> thumb;
+
+	g_async_queue_ref(this->aqueue_createthumbs);
+	g_async_queue_ref(this->aqueue_donethumbs);
+
+	// always work!
+	while (1) {
+
+		// remove first item (blocks when no items occur)
+		TreePair *p = (TreePair*)g_async_queue_pop(this->aqueue_createthumbs);
+
+		// get filenames
+		Glib::ustring file = p->file;
+		Glib::ustring cachefile = this->cache_file(file);
+
+//		Util::program_log("create_cache_images(): Caching file %s\n", file.c_str());
+
+		// open image
+		try {
+			thumb = Gdk::Pixbuf::create_from_file(file);
+		} catch (...) {
+			// forget it, move on
+			delete p;
+			continue;
+		}
+
+		// eliminate zero heights (due to really tiny images :/)
+		int height = (int)(100*((float)thumb->get_height()/(float)thumb->get_width()));
+		if (!height) height = 1;
+
+		// create thumb
+		thumb = thumb->scale_simple(100, height, Gdk::INTERP_TILES);
+
+		// create required fd.o png tags
+		std::list<Glib::ustring> opts, vals;
+		opts.push_back(Glib::ustring("tEXt::Thumb::URI"));
+		vals.push_back(Glib::filename_to_uri(file));
+
+		time_t mtime = get_file_mtime(file);
+
+		char *bufout = new char[20];
+		sprintf(bufout, "%d", mtime);
+
+		opts.push_back(Glib::ustring("tEXt::Thumb::MTime"));
+		vals.push_back(Glib::ustring(bufout));
+
+		delete [] bufout;
+
+		thumb->save(cachefile, "png", opts, vals);
+
+		// send it to the display
+		TreePair *sendp = new TreePair();
+		sendp->file = file;
+		sendp->iter = p->iter;
+		sendp->thumb = thumb;
+		g_async_queue_push(this->aqueue_donethumbs, (gpointer)sendp);
+
+		// emit dispatcher
+		this->dispatch_thumb.emit();
+
+		delete p;
+	}
+
+	g_async_queue_unref(this->aqueue_createthumbs);
+	g_async_queue_unref(this->aqueue_donethumbs);
+	throw Glib::Thread::Exit();
+}
+
+void Thumbview::handle_dispatch_thumb() {
+	g_async_queue_ref(this->aqueue_donethumbs);
+
+	TreePair *donep = (TreePair*)g_async_queue_pop(this->aqueue_donethumbs);
+	this->update_thumbnail(donep->file, donep->iter, donep->thumb);
+	delete donep;
+
+	g_async_queue_unref(this->aqueue_donethumbs);
+}
+
+/**
+ * Updates the treeview to show the passed in thumbnail.
+ *
+ */
+void Thumbview::update_thumbnail(Glib::ustring file, Gtk::TreeModel::iterator iter, Glib::RefPtr<Gdk::Pixbuf> pb)
+{
+	Gtk::TreeModel::Row row = *iter;
+	row[record.Thumbnail] = pb;
+	// desc
+	//row[record.Description] = Glib::ustring(file, file.rfind("/")+1);
+
+	// emit a changed signal
+	store->row_changed(store->get_path(iter), iter);
+}
+
+/**
+ * Used by GTK to see whether or not an iterator matches a search string.
+ */
+bool Thumbview::search_compare (const Glib::RefPtr<Gtk::TreeModel>& model, int column, const Glib::ustring& key, const Gtk::TreeModel::iterator& iter) {
+	Glib::ustring target = (*iter)[record.Description];
+	if (target.find (key) != Glib::ustring::npos) {
+		return false;
+	}
+	return true;
+}
+
+/**
+ * Sets the sort mode. This tells the view how it should sort backgrounds.
+ */
+void Thumbview::set_sort_mode (Thumbview::SortMode mode) {
+	switch (mode) {
+		case SORT_ALPHA:
+			store->set_sort_column (record.Description, Gtk::SORT_ASCENDING);
+			break;
+		case SORT_RALPHA:
+			store->set_sort_column (record.Description, Gtk::SORT_DESCENDING);
+			break;
+		case SORT_TIME:
+			store->set_sort_column (record.Time, Gtk::SORT_ASCENDING);
+			break;
+		case SORT_RTIME:
+			store->set_sort_column (record.Time, Gtk::SORT_DESCENDING);
+			break;
+	}
+}
+
+/**
+ * Loads the map of displays and their set bgs. Used to indicate which
+ * files are currently set as a background.
+ */
+void Thumbview::load_map_setbgs()
+{
+    map_setbgs.clear();
+
+    std::vector<Glib::ustring> vecgroups;
+    bool ret = false;
+//    bool ret = Config::get_instance()->get_bg_groups(vecgroups);
+    if (!ret)
+        return;
+
+    for (std::vector<Glib::ustring>::iterator i = vecgroups.begin(); i!=vecgroups.end(); i++)
+    {
+        Glib::ustring file;
+//        SetBG::SetMode mode;
+        Gdk::Color bgcolor;
+
+//        ret = Config::get_instance()->get_bg(*i, file, mode, bgcolor);
+        if (!ret)
+        {
+            std::cerr << "(load_map_setbgs) Could not get background stored info for " << *i << "\n";
+            return;
+        }
+
+        map_setbgs[*i] = file;
+    }
+}
+
+#ifdef USE_INOTIFY
+
+/**
+ * Called when a file in a directory being monitored by inotify is deleted.
+ * Removes the file from the tree view.
+ *
+ * @param filename The name of the file to remove.
+ */
+void Thumbview::file_deleted_callback(std::string filename) {
+	if (watches.find(filename) != watches.end()) {
+		watches.erase(filename);
+		return;
+	}
+	Gtk::TreeIter iter;
+	Gtk::TreeModel::Children children = store->children();
+	for (iter = children.begin(); iter != children.end(); iter++) {
+		Glib::ustring this_filename = (*iter)[record.Filename];
+		if (this_filename == filename) {
+			// remove this iter.
+			store->erase(iter);
+			break;
+		}
+	}
+}
+
+/**
+ * Called when a file in a directory being monitored by inotify is modified
+ * or a new file is created. Adds the file to the tree view.
+ *
+ * @param filename The name of the file modified or created.
+ */
+void Thumbview::file_changed_callback(std::string filename) {
+	// first remove the old instance of this file.
+	file_deleted_callback(filename);
+	if ( Glib::file_test(filename, Glib::FILE_TEST_IS_DIR) ) {
+		// this is a directory; use load_dir() to set us up the bomb.
+		load_dir(filename);
+	} else if (is_image(filename)) {
+		// this is a file.
+		add_file(filename);
+	}
+	// restart the idle function
+	//Glib::signal_idle().connect(sigc::mem_fun(this, &Thumbview::load_cache_images));
+}
+
+/**
+ * Called when a new file or directory is created in a directory being
+ * monitored. Discards the event for non-directories, because
+ * file_changed_callback will be called for those.
+ *
+ * @param filename The name of the file modified or created.
+ */
+void Thumbview::file_created_callback(std::string filename) {
+	if ( Glib::file_test(filename, Glib::FILE_TEST_IS_DIR) ) {
+		file_changed_callback(filename);
+	}
+}
+
+#endif

@@ -0,0 +1,162 @@ 
+/*
+
+This file is from Nitrogen, an X11 background setter.
+Copyright (C) 2006  Dave Foster & Javeed Shaikh
+
+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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+*/
+
+#include <queue>
+#include <errno.h>
+#include <gtkmm.h>
+
+#ifdef USE_INOTIFY
+//#include "Inotify.h"
+#endif
+
+struct TreePair {
+	Glib::ustring file;
+	Gtk::TreeModel::iterator iter;
+	Glib::RefPtr<Gdk::Pixbuf> thumb;
+};
+
+class Thumbview;
+
+class DelayLoadingStore : public Gtk::ListStore
+{
+	public:
+		static Glib::RefPtr<DelayLoadingStore> create(const Gtk::TreeModelColumnRecord& columns)
+		{
+			return Glib::RefPtr<DelayLoadingStore>(new DelayLoadingStore(columns));
+		}
+
+	protected:
+		DelayLoadingStore() : Gtk::ListStore() {}
+		DelayLoadingStore(const Gtk::TreeModelColumnRecord& columns) : Gtk::ListStore(columns) {}
+
+	protected:
+		virtual void 	get_value_vfunc (const iterator& iter, int column, Glib::ValueBase& value) const;
+
+	public:
+		void set_queue(GAsyncQueue *queue) { aqueue_loadthumbs = queue; }
+		void set_thumbview(Thumbview *view) { thumbview = view; }
+
+	protected:
+		GAsyncQueue *aqueue_loadthumbs;
+		Thumbview *thumbview;
+
+
+};
+
+/////////////////////////////////////////////////////////////////////////////
+
+/**
+ * Column record for the Thumbview store.
+ */
+class ThumbviewRecord : public Gtk::TreeModelColumnRecord
+{
+    public:
+        ThumbviewRecord()
+        {
+            add(Thumbnail);
+            add(Description);
+            add(Filename);
+            add(Time);
+            add(LoadingThumb);
+            add(CurBGOnDisp);
+        }
+
+		Gtk::TreeModelColumn<Glib::ustring> Filename;
+		Gtk::TreeModelColumn<Glib::ustring> Description;
+		Gtk::TreeModelColumn< Glib::RefPtr<Gdk::Pixbuf> > Thumbnail;
+		Gtk::TreeModelColumn<time_t> Time;
+		Gtk::TreeModelColumn<bool> LoadingThumb;
+        Gtk::TreeModelColumn<Glib::ustring> CurBGOnDisp;
+};
+
+
+/////////////////////////////////////////////////////////////////////////////
+
+class Thumbview : public Gtk::ScrolledWindow {
+	public:
+		Thumbview ();
+		~Thumbview ();
+
+		typedef enum {
+			SORT_ALPHA,
+			SORT_RALPHA,
+			SORT_TIME,
+			SORT_RTIME
+		} SortMode;
+
+		void set_dir(std::string indir) { this->dir = indir; }
+
+		Glib::RefPtr<DelayLoadingStore> store;
+		Gtk::TreeView view;
+        ThumbviewRecord record;
+
+		// dispatcher
+		Glib::Dispatcher dispatch_thumb;
+
+		// thread/idle funcs
+		void load_cache_images();
+		void create_cache_images();
+		void load_dir(std::string dir = "");
+
+		void set_sort_mode (SortMode mode);
+		// search compare function
+		bool search_compare (const Glib::RefPtr<Gtk::TreeModel>& model, int column, const Glib::ustring& key, const Gtk::TreeModel::iterator& iter);
+
+		// loading image
+		Glib::RefPtr<Gdk::Pixbuf> loading_image;
+
+        // "cache" of config - maps displays to full filenames
+        std::map<Glib::ustring, Glib::ustring> map_setbgs;
+        void load_map_setbgs();
+
+	protected:
+
+#ifdef USE_INOTIFY
+		void file_deleted_callback(std::string filename);
+		void file_changed_callback(std::string filename);
+		void file_created_callback(std::string filename);
+		std::map<std::string, Inotify::Watch*> watches;
+#endif
+
+		void add_file(std::string filename);
+		void handle_dispatch_thumb();
+
+		Gtk::TreeViewColumn *col_thumb;
+		Gtk::TreeViewColumn *col_desc;
+
+		Gtk::CellRendererPixbuf rend_img;
+		Gtk::CellRendererText rend;
+
+		// utility functions
+		bool is_image(std::string file);
+		Glib::ustring cache_file(Glib::ustring file);
+		void update_thumbnail(Glib::ustring file, Gtk::TreeModel::iterator iter, Glib::RefPtr<Gdk::Pixbuf> pb);
+
+		// base dir
+		// TODO: remove when we get a proper db
+		std::string dir;
+
+		// load thumbnail queue
+		GAsyncQueue* aqueue_loadthumbs;
+		GAsyncQueue* aqueue_createthumbs;
+		GAsyncQueue* aqueue_donethumbs;
+
+};