TITANIC: Change mouse cursor to use transparency

1 files changed, 63 insertions, 0 deletions

diff --git a/engines/titanic/support/transparency_surface.h b/engines/titanic/support/transparency_surface.h
new file mode 100644
index 0000000000..5593dfa66d
--- /dev/null
+++ b/engines/titanic/support/transparency_surface.h
@@ -0,0 +1,63 @@
+/* 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 TITANIC_TRANSPARENCY_SURFACE_H
+#define TITANIC_TRANSPARENCY_SURFACE_H
+
+#include "common/rect.h"
+#include "graphics/surface.h"
+
+namespace Titanic {
+
+enum TransparencyMode {
+	TRANS_MASK0 = 0, TRANS_MASK255 = 1, TRANS_ALPHA0 = 2,
+	TRANS_ALPHA255 = 3, TRANS_DEFAULT = 4
+};
+
+class CTransparencySurface {
+private:
+	const Graphics::Surface *_surface;
+	Common::Point _pos;
+	int _pitch;
+	int _runLength;
+	bool _flag;
+	bool _flag1;
+	bool _flag2;
+public:
+	CTransparencySurface(const Graphics::Surface *surface, TransparencyMode transMode);
+
+	void setRow(int yp) { _pos.y = yp; }
+
+	void setCol(int xp) { _pos.x = xp; }
+
+	uint getPixel() const;
+
+	bool isPixelTransparent1() const;
+
+	bool isPixelTransparent2() const;
+
+	int moveX();
+};
+
+} // End of namespace Titanic
+
+#endif /* TITANIC_TRANSPARENCY_SURFACE_H */