85 lines
2.2 KiB
C
85 lines
2.2 KiB
C
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// * This file is part of the COLOBOT source code
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// * Copyright (C) 2012, Polish Portal of Colobot (PPC)
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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 3 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, see http://www.gnu.org/licenses/.
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// image.h
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#pragma once
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#include <stddef.h>
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#include <string>
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// Forward declaration without including headers to clutter the code
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struct SDL_Surface;
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//! Implementation-specific image data
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/** Note that the struct has no destructor and the surface
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will not be freed at destruction. */
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struct ImageData
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{
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//! SDL surface with image data
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SDL_Surface* surface;
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ImageData() { surface = NULL; }
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};
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/**
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\class CImage
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\brief Image loaded from file
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Wrapper around SDL_Image library to load images. Also contains
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function for saving images to PNG.
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*/
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class CImage
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{
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private:
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//! Blocked!
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CImage(const CImage &other) {}
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//! Blocked!
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void operator=(const CImage &other) {}
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public:
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//! Constructs empty image (with NULL data)
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CImage();
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//! Destroys image, calling Free()
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virtual ~CImage();
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//! Frees the allocated image data
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void Free();
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//! Returns whether the image is empty (has NULL data)
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bool IsEmpty();
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//! Returns the image data; if empty - returns NULL
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ImageData* GetData();
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//! Loads an image from the specified file
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bool Load(const std::string &fileName);
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//! Saves the image to the specified file in PNG format
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bool SavePNG(const std::string &fileName);
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//! Returns the last error
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std::string GetError();
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private:
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//! Last encountered error
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std::string m_error;
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//! Image data
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ImageData* m_data;
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};
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