Add missing file audio_rendering_style.h

Originally committed to SVN as r5891.

aegisub/src/audio_rendering_style.h

@@ -0,0 +1,63 @@
+// Copyright (c) 2010, Niels Martin Hansen
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// Aegisub Project http://www.aegisub.org/
+//
+// $Id$
+
+/// @brief Styles audio may be rendered in
+///
+/// The constants are ordered by priority:
+/// Selected has highest priority and should overlap active, which should
+/// overlap inactive, which should overlap normal regions.
+enum AudioRenderingStyle {
+	/// Regular audio with no special properties
+	AudioStyle_Normal,
+	/// Audio belonging to objects that can not be manipulated currently
+	AudioStyle_Inactive,
+	/// Audio that may be manipulated indirectly, usually part of selected lines
+	AudioStyle_Active,
+	/// Primary selection for work, usually coinciding with the primary playback range
+	AudioStyle_Selected,
+	/// Number of audio styles
+	AudioStyle_MAX
+};
+
+
+/// @class AudioRenderingStyleRanges
+/// @brief Abstract container for ranges of audio rendering styles
+///
+/// Interface for producers of audio rendering ranges, consumers should
+/// implement this interface for objects to pass to producers.
+class AudioRenderingStyleRanges {
+public:
+	/// @brief Add a range to the line
+	/// @param start First sample index in range
+	/// @param end   One past last sample index in range
+	/// @param style Style of the range added
+	virtual void AddRange(int64_t start, int64_t end, AudioRenderingStyle style) = 0;
+};