bitmap_store.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2021 KiCad Developers, see AUTHORS.txt for contributors.
 *
 * 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/>.
 */
 
#include <wx/bitmap.h>
#include <wx/filename.h>
#include <wx/log.h>
#include <wx/mstream.h>
#include <wx/stdpaths.h>
 
#include <advanced_config.h>
#include <asset_archive.h>
#include <bitmaps.h>
#include <bitmap_store.h>
#include <bitmaps/bitmap_info.h>
#include <hash.h>
#include <kiplatform/ui.h>
#include <paths.h>
#include <pgm_base.h>
#include <settings/common_settings.h>
 
 
static const unsigned char s_imageNotFound[] = {
 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x18, 0x08, 0x04, 0x00, 0x00, 0x00, 0x4a, 0x7e, 0xf5,
 0x73, 0x00, 0x00, 0x01, 0xab, 0x49, 0x44, 0x41, 0x54, 0x38, 0xcb, 0x8d, 0xd4, 0x3f, 0x2c, 0x03,
 0x51, 0x18, 0x00, 0xf0, 0x4b, 0x0c, 0x22, 0xb1, 0x19, 0x8c, 0x46, 0x09, 0x62, 0x60, 0x68, 0x62,
 0x20, 0xb1, 0x98, 0x24, 0x24, 0x77, 0x08, 0xd2, 0x10, 0x03, 0x06, 0x8b, 0x90, 0x98, 0x48, 0x25,
 0x3a, 0x34, 0x12, 0xb1, 0x19, 0x0c, 0xa2, 0x34, 0xfe, 0xc4, 0x24, 0x29, 0x93, 0xa1, 0x0c, 0x52,
 0x7f, 0xe2, 0xcf, 0x20, 0x5a, 0x83, 0xa1, 0xb4, 0xf7, 0xa7, 0x77, 0xef, 0xde, 0xdd, 0xd3, 0xde,
 0xd1, 0x7e, 0x7a, 0x17, 0xda, 0xe2, 0xb5, 0xee, 0x7d, 0xdb, 0x7d, 0xdf, 0xef, 0xde, 0xbb, 0xfb,
 0xde, 0x7b, 0x0c, 0x0b, 0x6c, 0xfa, 0x77, 0x70, 0x46, 0x9f, 0x69, 0x05, 0x67, 0xfe, 0xc9, 0x01,
 0xc3, 0xa6, 0x99, 0xa2, 0xa1, 0xb5, 0x8b, 0x81, 0xa4, 0x9a, 0x20, 0xf7, 0xca, 0x39, 0x0a, 0x2b,
 0x11, 0x84, 0x0c, 0xe1, 0x20, 0x55, 0x57, 0xc8, 0xe7, 0xaa, 0x0b, 0x80, 0xb4, 0xf0, 0x77, 0xcf,
 0xda, 0x7a, 0x66, 0x02, 0xd8, 0x7c, 0xb8, 0x61, 0xf3, 0x3d, 0x89, 0x71, 0x1b, 0x15, 0x68, 0x4d,
 0xb2, 0x31, 0x54, 0x54, 0xfc, 0x1d, 0x0b, 0x20, 0x21, 0x5c, 0x43, 0x01, 0x0c, 0x23, 0x04, 0xd7,
 0x3f, 0x58, 0x98, 0x85, 0x7d, 0xf3, 0x46, 0x89, 0xa2, 0x4b, 0xe4, 0xfb, 0x22, 0xc1, 0x94, 0x32,
 0x4f, 0x05, 0x7a, 0xb3, 0xf0, 0xf6, 0xa8, 0x4a, 0xbc, 0xb2, 0xa8, 0x77, 0x91, 0x56, 0xdc, 0x2b,
 0x3e, 0x2f, 0x67, 0x2d, 0xe0, 0x81, 0x78, 0x98, 0x0a, 0x18, 0x46, 0xf1, 0xe0, 0x1e, 0xa8, 0xc8,
 0xbf, 0x60, 0xf8, 0x04, 0x5b, 0x60, 0x06, 0x12, 0xd1, 0x12, 0xe0, 0xe7, 0x10, 0xd7, 0x02, 0xa6,
 0x05, 0xbc, 0x10, 0x0f, 0x39, 0x00, 0xc9, 0xf9, 0x17, 0x32, 0x62, 0x7f, 0xc3, 0x99, 0xae, 0x4d,
 0xfd, 0x03, 0xa0, 0x52, 0xdc, 0x79, 0xd0, 0xc7, 0xec, 0xf2, 0xd5, 0x8c, 0x14, 0x83, 0xaa, 0xb2,
 0x40, 0xa8, 0x16, 0xaf, 0x4f, 0x89, 0xf5, 0x8b, 0x39, 0xf0, 0x9b, 0xa2, 0x80, 0xeb, 0xa9, 0x7d,
 0x28, 0x02, 0x87, 0xc7, 0x29, 0x2e, 0x57, 0x3e, 0x08, 0x21, 0x22, 0xde, 0xea, 0xb5, 0x25, 0x3a,
 0x9d, 0x6f, 0x60, 0x43, 0x9c, 0x0c, 0xd8, 0xe5, 0x8f, 0xba, 0xb4, 0x0d, 0x95, 0xc5, 0x39, 0x3a,
 0x18, 0x3f, 0x22, 0xd6, 0xda, 0x77, 0x0d, 0x69, 0xeb, 0x77, 0x8e, 0x0a, 0xd4, 0x85, 0xbd, 0xac,
 0x3b, 0xb7, 0x8b, 0x2e, 0x54, 0xdc, 0xed, 0x08, 0xe0, 0x39, 0xf9, 0xcd, 0x0a, 0x45, 0xd7, 0x3a,
 0x1d, 0x81, 0x72, 0xa3, 0x04, 0x50, 0x5d, 0xc8, 0x2b, 0xfb, 0xb4, 0x0e, 0x87, 0x40, 0x19, 0x7d,
 0xd5, 0xfd, 0x99, 0x8d, 0x6c, 0x4c, 0x4b, 0x4e, 0x3b, 0x02, 0x7c, 0x6c, 0xc6, 0xee, 0xf0, 0x64,
 0xee, 0x1c, 0x38, 0x02, 0x32, 0x71, 0xdb, 0xa0, 0x1f, 0xd4, 0x8f, 0xc2, 0xce, 0x2d, 0x37, 0xc3,
 0xd5, 0x8a, 0x7d, 0x0a, 0x96, 0x80, 0x7f, 0x72, 0x34, 0x83, 0xd6, 0x28, 0xf1, 0x4f, 0x28, 0x82,
 0x24, 0x59, 0x75, 0xd1, 0x00, 0xe5, 0x9a, 0xb1, 0x2e, 0x1a, 0xce, 0xa0, 0x3d, 0x67, 0xe1, 0x13,
 0xb5, 0xc5, 0x7e, 0xb7, 0x69, 0x08, 0x53, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x49, 0x45, 0x4e, 0x44,
 0xae, 0x42, 0x60, 0x82,
};
 
 
static const unsigned char s_dummyItem[] = {
 0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x10, 0x08, 0x06, 0x00, 0x00, 0x00, 0x1f, 0xf3, 0xff,
 0x61, 0x00, 0x00, 0x00, 0x5f, 0x49, 0x44, 0x41, 0x54, 0x38, 0xcb, 0x63, 0xf8, 0xff, 0xff, 0x3f,
 0x03, 0x25, 0x98, 0x61, 0x68, 0x1a, 0x00, 0x04, 0x46, 0x40, 0xfc, 0x02, 0x88, 0x45, 0x41, 0x1c,
 0x76, 0x20, 0xfe, 0x01, 0xc4, 0xbe, 0x24, 0x18, 0x60, 0x01, 0xc4, 0x20, 0x86, 0x04, 0x88, 0xc3,
 0x01, 0xe5, 0x04, 0x0c, 0xb8, 0x01, 0x37, 0x81, 0xf8, 0x04, 0x91, 0xf8, 0x0a, 0x54, 0x8f, 0x06,
 0xb2, 0x01, 0x9b, 0x81, 0x78, 0x02, 0x91, 0x78, 0x05, 0x54, 0x8f, 0xca, 0xe0, 0x08, 0x03, 0x36,
 0xa8, 0xbf, 0xec, 0xc8, 0x32, 0x80, 0xcc, 0x84, 0x04, 0x0a, 0xbc, 0x1d, 0x40, 0x2c, 0xc8, 0x30,
 0xf4, 0x33, 0x13, 0x00, 0x6b, 0x1a, 0x46, 0x7b, 0x68, 0xe7, 0x0f, 0x0b, 0x00, 0x00, 0x00, 0x00,
 0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
};
 
 
static const wxString traceBitmaps = wxT( "KICAD_BITMAPS" );
 
static const wxString IMAGE_ARCHIVE = wxT( "images.tar.gz" );
 
 
size_t std::hash<std::pair<BITMAPS, int>>::operator()( const std::pair<BITMAPS, int>& aPair ) const
{
 std::size_t seed = 0xa82de1c0;
 hash_combine( seed, static_cast<size_t>( aPair.first ), static_cast<size_t>( aPair.second ) );
 
 return seed;
}
 
 
BITMAP_STORE::BITMAP_STORE()
{
 wxFileName path( PATHS::GetStockDataPath() + wxT( "/resources" ), IMAGE_ARCHIVE );
 
 wxLogTrace( traceBitmaps, "Loading bitmaps from " + path.GetFullPath() );
 
 m_archive = std::make_unique<ASSET_ARCHIVE>( path.GetFullPath() );
 
 buildBitmapInfoCache();
 
 ThemeChanged();
}
 
 
wxBitmap BITMAP_STORE::GetBitmap( BITMAPS aBitmapId, int aHeight )
{
 return wxBitmap( getImage( aBitmapId, aHeight ) );
}
 
 
wxBitmap BITMAP_STORE::GetBitmapScaled( BITMAPS aBitmapId, int aScaleFactor, int aHeight )
{
 wxImage image = getImage( aBitmapId, aHeight );
 
 // Bilinear seems to genuinely look better for these line-drawing icons
 // than bicubic, despite claims in the wx documentation that bicubic is
 // "highest quality". I don't recommend changing this. Bicubic looks
 // blurry and makes me want an eye exam.
 image.Rescale( aScaleFactor * image.GetWidth() / 4, aScaleFactor * image.GetHeight() / 4,
 wxIMAGE_QUALITY_BILINEAR );
 
 return wxBitmap( image );
}
 
 
wxImage BITMAP_STORE::getImage( BITMAPS aBitmapId, int aHeight )
{
 const unsigned char* data = nullptr;
 long count;
 
 if( aBitmapId == BITMAPS::dummy_item )
 {
 data = s_dummyItem;
 count = sizeof( s_dummyItem );
 }
 else
 {
 count = m_archive->GetFilePointer( bitmapName( aBitmapId, aHeight ), &data );
 
 if( count < 0 )
 {
 wxLogTrace( traceBitmaps, "Bitmap for %d, %d, %s has an info tag with file %s,"
 "but that file could not be found in the archive!",
 aBitmapId, aHeight, m_theme );
 data = s_imageNotFound;
 count = sizeof( s_imageNotFound );
 }
 }
 
 wxMemoryInputStream is( data, count );
 wxImage image( is, wxBITMAP_TYPE_PNG );
 
 return image;
}
 
 
void BITMAP_STORE::ThemeChanged()
{
 COMMON_SETTINGS* settings = Pgm().GetCommonSettings();
 wxString oldTheme = m_theme;
 
 if( settings )
 {
 switch( settings->m_Appearance.icon_theme )
 {
 case ICON_THEME::LIGHT: m_theme = wxT( "light" ); break;
 case ICON_THEME::DARK: m_theme = wxT( "dark" ); break;
 case ICON_THEME::AUTO:
 m_theme = KIPLATFORM::UI::IsDarkTheme() ? wxT( "dark" ) : wxT( "light" );
 break;
 }
 }
 else
 {
 m_theme = wxT( "light" );
 }
 
 if( !oldTheme.IsSameAs( m_theme ) )
 m_bitmapNameCache.clear();
}
 
 
const wxString& BITMAP_STORE::bitmapName( BITMAPS aBitmapId, int aHeight )
{
 std::pair<BITMAPS, int> key = std::make_pair( aBitmapId, aHeight );
 
 if( !m_bitmapNameCache.count( key ) )
 m_bitmapNameCache[key] = computeBitmapName( aBitmapId, aHeight );
 
 return m_bitmapNameCache.at( key );
}
 
 
wxString BITMAP_STORE::computeBitmapName( BITMAPS aBitmapId, int aHeight )
{
 if( !m_bitmapInfoCache.count( aBitmapId ) )
 {
 wxLogTrace( traceBitmaps, "No bitmap info available for %d", aBitmapId );
 return wxEmptyString;
 }
 
 wxString fn;
 
 for( const BITMAP_INFO& info : m_bitmapInfoCache.at( aBitmapId ) )
 {
 if( info.theme != m_theme )
 continue;
 
 if( aHeight < 0 || info.height == aHeight )
 {
 fn = info.filename;
 break;
 }
 }
 
 if( fn.IsEmpty() )
 {
 wxLogTrace( traceBitmaps, "No bitmap found matching ID %d, height %d, theme %s",
 aBitmapId, aHeight, m_theme );
 return m_bitmapInfoCache.at( aBitmapId ).begin()->filename;
 }
 
 return fn;
}
 
 
void BITMAP_STORE::buildBitmapInfoCache()
{
 BuildBitmapInfo( m_bitmapInfoCache );
}