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							120 lines
						
					
					
						
							4.0 KiB
						
					
					
				
			
		
		
		
			
			
			
		
		
	
	
							120 lines
						
					
					
						
							4.0 KiB
						
					
					
				
								/*
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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 The 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 <wx/bmpbndl.h>
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								#include <bitmaps/bitmap_info.h>
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								#include <kicommon.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 KICOMMON_API 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 retrieve bitmaps while handling icon themes and scaling
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								 */
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								class KICOMMON_API 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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								     * Retrieves 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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								     * Constructs and returns a bitmap bundle containing all available sizes of the given ID
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								     * @param aBitmapId is from the BITMAPS enum in bitmaps_list.h
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								     * @param aMinHeight is the minimum height of the bitmaps to include in the bundle.
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								     * This is important for uses of GetPreferredBitmap and more on wxBitmap bundles because
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								     * wx assumes the smallest bitmap is the "original" intended size. This is a problem where
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								     * some icons may be reused between controls at different intended sizes.
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								     */
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								    wxBitmapBundle GetBitmapBundle( BITMAPS aBitmapId, int aMinHeight = -1 );
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								    /**
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								     * Constructs and returns a bitmap bundle for the given icon ID, with the bitmaps
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								     * converted to disabled state according to the current UI theme.
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								     * @param aBitmapId is from the BITMAPS enum in bitmaps_list.h
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								     */
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								    wxBitmapBundle GetDisabledBitmapBundle( BITMAPS aBitmapId );
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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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								     */
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								    void 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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