- adds the new gui renderer also a new implementation for the classic gui

 - adds a ImageMan and ImageDec class for loading and managing image files
 - adds a loader for zip files which is used by the new theme and the image manager
 - changes the widgets to use the new gui code
 - changes the scumm dialogs to use the new gui code
 - fixes a #include problem in the sky debugger with the new gui code

 To use the new gui copy gui/themes/default-theme.zip to your extrapath.
If the theme zip can not be found the gui will fallback to the classic theme.
If you want to change the gui styles use "gui_theme=classic" for the classic theme
and "gui_theme=default-theme" for the new theme.

Thanks to eriktorbjorn for testing and help with the new theme and to sev for
reviewing this patch.

svn-id: r20227

1 files changed, 103 insertions, 0 deletions

diff --git a/graphics/imageman.h b/graphics/imageman.h
new file mode 100644
index 0000000000..ff48701cce
--- /dev/null
+++ b/graphics/imageman.h
@@ -0,0 +1,103 @@
+/* ScummVM - Scumm Interpreter
+ * Copyright (C) 2006 The ScummVM project
+ *
+ * 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.
+ *
+ * $Header $
+ */
+
+#ifndef GRAPHICS_IMAGEMAN_H
+#define GRAPHICS_IMAGEMAN_H
+
+#include "common/stdafx.h"
+#include "common/scummsys.h"
+#include "common/singleton.h"
+#include "common/str.h"
+#include "common/list.h"
+#include "common/unzip.h"
+
+namespace Graphics {
+struct Surface;
+ 
+class ImageManager : public Common::Singleton<ImageManager> {
+public:
+	~ImageManager();
+
+	/**
+	 * adds an .zip archive to the pool there the ImagaManager searches
+	 * for image files
+	 *
+	 * @param name the name of the archive
+	 * @return true on success and false on failure
+	 */
+	bool addArchive(const Common::String &name);
+
+	/** 
+	 * registers a surface to the ImageManager.
+	 * surf->free(), also delete surf, will be called when the ImageManager will
+	 * be destroyed or if ImageManager::unregisterSurface is called.
+	 * if the parameter 'surf' is 0 the Manger will try to load an image with
+	 * the filename 'name'
+	 *
+	 * @param name the name of the new handle
+	 * @param surf the surface which should be associated to the given name
+	 * @return returns true on success and false on failure
+	 */
+	bool registerSurface(const Common::String &name, Surface *surf);
+
+	/**
+	 * unregisters a surface, after this the returned surface from
+	 * getSurface should NOT be used anymore
+	 *
+	 * @param name the handle
+	 * @return true on success, false on failure
+	 */
+	bool unregisterSurface(const Common::String &name);
+
+	/**
+	 * gets a surface registered to a handle
+	 *
+	 * @param name the name of the handle
+	 * @return returns an pointer to an Surface object or 0 on failure
+	 */
+	Surface *getSurface(const Common::String &name);
+private:
+	friend class Common::Singleton<SingletonBaseType>;
+	ImageManager();
+
+	struct Entry {
+		Common::String name;
+		Surface *surface;
+	};
+	typedef Common::List<Entry*>::iterator Iterator;
+#ifdef USE_ZLIB
+	typedef Common::List<unzFile>::iterator ZipIterator;
+#endif
+	
+	Iterator searchHandle(const Common::String &name);
+
+	Common::List<Entry*> _surfaces;
+#ifdef USE_ZLIB
+	Common::List<unzFile> _archives;
+#endif
+};
+
+} // end of namespace Graphics
+
+/** Shortcut for accessing the font manager. */
+#define ImageMan		(Graphics::ImageManager::instance())
+
+#endif
+