aboutsummaryrefslogtreecommitdiff
path: root/engines/pegasus/neighborhood/norad/alpha/panorama.h
diff options
context:
space:
mode:
Diffstat (limited to 'engines/pegasus/neighborhood/norad/alpha/panorama.h')
-rw-r--r--engines/pegasus/neighborhood/norad/alpha/panorama.h98
1 files changed, 98 insertions, 0 deletions
diff --git a/engines/pegasus/neighborhood/norad/alpha/panorama.h b/engines/pegasus/neighborhood/norad/alpha/panorama.h
new file mode 100644
index 0000000000..3ca2c1e305
--- /dev/null
+++ b/engines/pegasus/neighborhood/norad/alpha/panorama.h
@@ -0,0 +1,98 @@
+/* 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.
+ *
+ * Additional copyright for this file:
+ * Copyright (C) 1995-1997 Presto Studios, Inc.
+ *
+ * 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 PEGASUS_NEIGHBORHOOD_NORAD_ALPHA_PANORAMA_H
+#define PEGASUS_NEIGHBORHOOD_NORAD_ALPHA_PANORAMA_H
+
+#include "pegasus/movie.h"
+
+namespace Pegasus {
+
+/*
+
+ Panorama implements a wide image using a specially constructed movie file.
+ The movie holds the image as a series of vertical strips, say 16 or 32 pixels wide.
+
+ The panorama bounds defines the entire panorama. The view bounds represents the
+ area on the panorama that is kept in memory.
+
+ The panorama bounds is also stored in the movie file; it cannot be changed. The
+ view bounds must always be a subset of the panorama bounds.
+
+ In actuality, the area kept in memory is at least as wide as the view bounds (but
+ may be wider to coincide with the width of the movies slices), and is as tall as
+ the panorama bounds. The view bounds is used by the drawPanorama function to draw
+ a piece of the panorama to the current screen.
+
+ The panorama movie is built at a time scale of 1, with each strip lasting for one
+ second, so that strip number corresponds exactly with the time value at which the
+ strip is stored.
+
+ TO USE:
+
+ Call one initFromMovieFile to open the movie. Then set up a view rect by
+ calling setViewBounds. Once these two functions have been called, drawPanorama
+ will draw the panorama.
+
+*/
+
+class Panorama {
+public:
+ Panorama();
+ virtual ~Panorama();
+
+ void initFromMovieFile(const Common::String &);
+ void releasePanorama();
+ bool isPanoramaOpen() { return _panoramaMovie.isMovieValid(); }
+
+ void setViewBounds(const Common::Rect &);
+ void getViewBounds(Common::Rect &) const;
+
+ void setMask(Surface *);
+
+ void getPanoramaBounds(Common::Rect &) const;
+
+ void drawPanorama(const Common::Rect &);
+
+protected:
+ void blankFields();
+ void makeNewSurface(const Common::Rect &);
+ void calcStripRange(const Common::Rect &, CoordType &, CoordType &);
+ void loadStrips(CoordType, CoordType);
+ void loadOneStrip(CoordType, CoordType);
+
+ Movie _panoramaMovie;
+ Surface _panoramaWorld, *_mask;
+ Common::Rect _viewBounds;
+ Common::Rect _drawBounds;
+ CoordType _panoramaWidth, _panoramaHeight;
+ CoordType _stripWidth; // Pixels per strip.
+ CoordType _numStrips;
+ CoordType _stripLeft, _stripRight;
+};
+
+} // End of namespace Pegasus
+
+#endif