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Diffstat (limited to 'src/common/image.h')
-rw-r--r-- | src/common/image.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/common/image.h b/src/common/image.h new file mode 100644 index 0000000..4d86d31 --- /dev/null +++ b/src/common/image.h @@ -0,0 +1,84 @@ +// * This file is part of the COLOBOT source code +// * Copyright (C) 2012, Polish Portal of Colobot (PPC) +// * +// * 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 3 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, see http://www.gnu.org/licenses/. + +// image.h + +#pragma once + + +#include <stddef.h> +#include <string> + + +// Forward declaration without including headers to clutter the code +struct SDL_Surface; + +//! Implementation-specific image data +/** Note that the struct has no destructor and the surface + will not be freed at destruction. */ +struct ImageData +{ + //! SDL surface with image data + SDL_Surface* surface; + + ImageData() { surface = NULL; } +}; + +/** + \class CImage + \brief Image loaded from file + + Wrapper around SDL_Image library to load images. Also contains + function for saving images to PNG. + */ +class CImage +{ +private: + //! Blocked! + CImage(const CImage &other) {} + //! Blocked! + void operator=(const CImage &other) {} + +public: + //! Constructs empty image (with NULL data) + CImage(); + //! Destroys image, calling Free() + virtual ~CImage(); + + //! Frees the allocated image data + void Free(); + + //! Returns whether the image is empty (has NULL data) + bool IsEmpty(); + + //! Returns the image data; if empty - returns NULL + ImageData* GetData(); + + //! Loads an image from the specified file + bool Load(const std::string &fileName); + + //! Saves the image to the specified file in PNG format + bool SavePNG(const std::string &fileName); + + //! Returns the last error + std::string GetError(); + +private: + //! Last encountered error + std::string m_error; + //! Image data + ImageData* m_data; +}; |