Aegisub/core/subtitle_provider.h

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// Copyright (c) 2006, David Lamparter
// 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
//
// Website: http://aegisub.cellosoft.com
// Contact: mailto:zeratul@cellosoft.com
//
#pragma once
#include <map>
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#include <wx/wxprec.h>
class VideoProvider;
class AssFile;
/////////////////////////////////////////
// Subtitle provider (renderer) interface
class SubtitleProvider {
public:
// Video overlay interface. Renderers MAY implement it,
// but do not need to. VideoProvider::SetOverlay takes it.
class Overlay {
public:
virtual void SetParams(int width, int height) = 0;
virtual void Render(wxImage &frame, int ms) = 0;
virtual void Unbind() = 0; // Called when VideoProvider is destroyed
virtual ~Overlay() { };
};
// Renderer Class. Manages the different types of renderers.
// Derivate a class off it, override its Get method and its constructor,
// and create one single instance of it for your renderer,
// as a static element in your SubtitleProvider derivated class. Example:
// class MyFancyRenderer : public SubtitleProvider {
// class MyClass : public Class { public:
// MyClass() : Class("FancyRenderer") { };
// virtual SubtitleProvider *Get(AssFile *subs) { return new MyFancyRenderer(subs); };
// };
// static MyClass me;
// };
class Class {
private:
static std::map<wxString, SubtitleProvider::Class *> *classes;
public:
Class(wxString name);
virtual SubtitleProvider *Get(AssFile *subs) = 0;
virtual ~Class() {};
static SubtitleProvider *GetProvider(wxString provider_name, AssFile *subs);
};
virtual ~SubtitleProvider() { };
virtual void Bind(VideoProvider *vpro) = 0;
};