87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/************************************************************************
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MeOS - Orienteering Software
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Copyright (C) 2009-2024 Melin Software HB
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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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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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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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Melin Software HB - software@melin.nu - www.melin.nu
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Eksoppsvägen 16, SE-75646 UPPSALA, Sweden
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************************************************************************/
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#pragma once
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#include <map>
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#include <vector>
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class Image {
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public:
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enum class ImageMethod {
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Default,
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MonoAlpha,
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WhiteTransparent
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};
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private:
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static uint64_t computeHash(const vector<uint8_t>& data);
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static void read_file(const wstring& filename, vector<uint8_t>& data);
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static HBITMAP read_png_file(const wstring &filename, int &width, int &height, uint64_t &hash, ImageMethod method);
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static HBITMAP read_png_resource(LPCTSTR lpName, LPCTSTR lpType, int &width, int &height, ImageMethod method);
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static HBITMAP read_png(vector<uint8_t> &&data, int &width, int &height, ImageMethod method);
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struct Bmp {
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HBITMAP image = nullptr;
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int width = -1;
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int height = -1;
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wstring fileName;
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vector<uint8_t> rawData;
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~Bmp();
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void destroy();
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};
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map<uint64_t, Bmp> images;
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public:
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HBITMAP loadImage(uint64_t resource, ImageMethod method);
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static vector<uint8_t> loadResourceToMemory(LPCTSTR lpName, LPCTSTR lpType);
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int getWidth(uint64_t resource);
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int getHeight(uint64_t resource);
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void drawImage(uint64_t resource, ImageMethod method, HDC hDC, int x, int y, int width, int height);
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uint64_t loadFromFile(const wstring& path, ImageMethod method);
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uint64_t loadFromMemory(const wstring& fileName, const vector<uint8_t> &bytes, ImageMethod method);
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void provideFromMemory(uint64_t id, const wstring& fileName, const vector<uint8_t>& bytes);
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void addImage(uint64_t id, const wstring& fileName);
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void clearLoaded();
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void enumerateImages(vector<pair<wstring, size_t>>& img) const;
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uint64_t getIdFromEnumeration(int enumerationIx) const;
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int getEnumerationIxFromId(uint64_t imgId) const;
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bool hasImage(uint64_t imgId) const;
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void reloadImage(uint64_t imgId, ImageMethod method);
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const wstring& getFileName(uint64_t imgId) const;
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const vector<uint8_t> &getRawData(uint64_t imgId) const;
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Image();
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~Image();
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};
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