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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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.
+ *
+ */
+
+#ifndef SHERLOCK_TATTOO_WIDGET_BASE_H
+#define SHERLOCK_TATTOO_WIDGET_BASE_H
+
+#include "common/scummsys.h"
+#include "common/rect.h"
+#include "common/str-array.h"
+#include "sherlock/surface.h"
+
+namespace Sherlock {
+
+class SherlockEngine;
+class ImageFile;
+
+namespace Tattoo {
+
+class WidgetBase {
+protected:
+ SherlockEngine *_vm;
+ Common::Rect _bounds;
+ Common::Rect _oldBounds;
+ Surface _surface;
+ bool _outsideMenu;
+ bool _scroll;
+
+ /**
+ * Used by descendent classes to split up long text for display across multiple lines
+ */
+ Common::String splitLines(const Common::String &str, Common::StringArray &lines, int maxWidth, uint maxLines);
+
+ /**
+ * Ensure that menu is drawn entirely on-screen
+ */
+ void restrictToScreen();
+
+ /**
+ * Draw a window frame around the dges of the passed surface
+ */
+ void makeInfoArea(Surface &s);
+
+ /**
+ * Draw a window frame around the widget's surface
+ */
+ void makeInfoArea();
+
+ /**
+ * Draw the scrollbar for the dialog
+ */
+ void drawScrollBar(int index, int pageSize, int count);
+
+ /**
+ * Handles any events when the mouse is on the scrollbar
+ */
+ void handleScrollbarEvents(int index, int pageSize, int count);
+
+ /**
+ * Handle drawing the background on the area the widget is going to cover
+ */
+ virtual void drawBackground();
+public:
+ WidgetBase(SherlockEngine *vm);
+ virtual ~WidgetBase() {}
+
+ /**
+ * Returns true if the given widget is active in the user interface's widget list
+ */
+ bool active() const;
+
+ /**
+ * Erase any previous display of the widget on the screen
+ */
+ virtual void erase();
+
+ /**
+ * Update the display of the widget on the screen
+ */
+ virtual void draw();
+
+ /**
+ * Used by some descendents to check for keys to mouse the mouse within the dialog
+ */
+ void checkTabbingKeys(int numOptions);
+
+ /**
+ * Summon the window
+ */
+ virtual void summonWindow();
+
+ /**
+ * Close a currently active menu
+ */
+ virtual void banishWindow();
+
+ /**
+ * Handle event processing
+ */
+ virtual void handleEvents() {}
+};
+
+} // End of namespace Tattoo
+
+} // End of namespace Sherlock
+
+#endif