102 lines
3.1 KiB
C++
102 lines
3.1 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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 along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef KICAD_BITMAP_STORE_H
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#define KICAD_BITMAP_STORE_H
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#include <memory>
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#include <unordered_map>
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#include <bitmaps/bitmap_info.h>
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class ASSET_ARCHIVE;
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class wxImage;
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namespace std
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{
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template<> struct hash<std::pair<BITMAPS, int>>
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{
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size_t operator()( const std::pair<BITMAPS, int>& aPair ) const;
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};
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}
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/**
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* Helper to retreive bitmaps while handling icon themes and scaling
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*/
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class BITMAP_STORE
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{
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public:
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BITMAP_STORE();
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~BITMAP_STORE() = default;
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/**
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* Retreives a bitmap from the given bitmap id
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* @param aBitmapId is from the BITMAPS enum in bitmaps_list.h
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* @param aHeight is the requested height in pixels of the source image, or -1 for any height
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*/
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wxBitmap GetBitmap( BITMAPS aBitmapId, int aHeight = -1 );
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/**
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* Retrieves a bitmap from the given bitmap id, scaled to a given factor.
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*
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* This factor is for legacy reasons divided by 4, so a scale factor of 4 will return the
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* original image.
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*
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* @todo this should be improved to take advantage of a number of different resolution PNGs
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* stored in the asset archive, so we take the closest PNG and scale it rather than always
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* starting with a low-resolution version.
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*
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* @param aBitmapId is from the BITMAPS enum in bitmaps_list.h
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* @param aScaleFactor is used to scale the bitmap uniformly
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* @param aHeight is the requested height in pixels of the source image to scale from
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*/
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wxBitmap GetBitmapScaled( BITMAPS aBitmapId, int aScaleFactor, int aHeight = -1 );
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/**
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* Notifies the store that the icon theme has been changed by the user, so caches must be
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* invalidated.
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* @return true if the new theme is different than what was previously in use
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*/
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bool ThemeChanged();
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bool IsDarkTheme() const { return m_theme == wxT( "dark" ); }
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private:
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wxImage getImage( BITMAPS aBitmapId, int aHeight = -1 );
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const wxString& bitmapName( BITMAPS aBitmapId, int aHeight = -1 );
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wxString computeBitmapName( BITMAPS aBitmapId, int aHeight = -1 );
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void buildBitmapInfoCache();
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std::unique_ptr<ASSET_ARCHIVE> m_archive;
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std::unordered_map<std::pair<BITMAPS, int>, wxString> m_bitmapNameCache;
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std::unordered_map<BITMAPS, std::vector<BITMAP_INFO>> m_bitmapInfoCache;
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wxString m_theme;
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};
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#endif // KICAD_BITMAP_STORE_H
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