mirror of
https://github.com/aseprite/aseprite.git
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100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
/* Aseprite
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* Copyright (C) 2001-2013 David Capello
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef APP_FILE_FILE_FORMAT_H_INCLUDED
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#define APP_FILE_FILE_FORMAT_H_INCLUDED
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#pragma once
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#include "base/shared_ptr.h"
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#include <vector>
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#define FILE_SUPPORT_LOAD 0x00000001
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#define FILE_SUPPORT_SAVE 0x00000002
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#define FILE_SUPPORT_RGB 0x00000004
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#define FILE_SUPPORT_RGBA 0x00000008
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#define FILE_SUPPORT_GRAY 0x00000010
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#define FILE_SUPPORT_GRAYA 0x00000020
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#define FILE_SUPPORT_INDEXED 0x00000040
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#define FILE_SUPPORT_LAYERS 0x00000080
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#define FILE_SUPPORT_FRAMES 0x00000100
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#define FILE_SUPPORT_PALETTES 0x00000200
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#define FILE_SUPPORT_SEQUENCES 0x00000400
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#define FILE_SUPPORT_GET_FORMAT_OPTIONS 0x00000800
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namespace app {
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class FormatOptions;
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class FileFormat;
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struct FileOp;
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// A file format supported by ASE. It is the base class to extend if
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// you want to add support to load and/or save a new kind of
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// image/animation format.
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class FileFormat {
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public:
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FileFormat();
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virtual ~FileFormat();
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const char* name() const; // File format name
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const char* extensions() const; // Extensions (e.g. "jpeg,jpg")
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bool load(FileOp* fop);
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#ifdef ENABLE_SAVE
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bool save(FileOp* fop);
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#endif
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// Does post-load operation which require user intervention.
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// Returns false cancelled the operation.
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bool postLoad(FileOp* fop);
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// Destroys the custom data stored in "fop->format_data" field.
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void destroyData(FileOp* fop);
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// Returns extra options for this format. It can return != NULL
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// only if flags() returns FILE_SUPPORT_GET_FORMAT_OPTIONS.
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SharedPtr<FormatOptions> getFormatOptions(FileOp* fop) {
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return onGetFormatOptions(fop);
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}
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// Returns true if this file format supports the given flag.
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bool support(int f) const {
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return ((onGetFlags() & f) == f);
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}
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protected:
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virtual const char* onGetName() const = 0;
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virtual const char* onGetExtensions() const = 0;
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virtual int onGetFlags() const = 0;
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virtual bool onLoad(FileOp* fop) = 0;
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virtual bool onPostLoad(FileOp* fop) { return true; }
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#ifdef ENABLE_SAVE
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virtual bool onSave(FileOp* fop) = 0;
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#endif
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virtual void onDestroyData(FileOp* fop) { }
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virtual SharedPtr<FormatOptions> onGetFormatOptions(FileOp* fop) {
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return SharedPtr<FormatOptions>(0);
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}
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};
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} // namespace app
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#endif
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