Plot SVG embedded
ADDED: embedded image support for SVG files Fixes #3643 | https://gitlab.com/kicad/code/kicad/issues/3643
This commit is contained in:
Seth Hillbrand
parent
b6b805548d
commit
fa133f3f5c
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@ -257,6 +257,7 @@ set( COMMON_SRCS
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advanced_config.cpp
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array_axis.cpp
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array_options.cpp
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base64.cpp
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base_struct.cpp
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bezier_curves.cpp
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bin_mod.cpp
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@ -0,0 +1,157 @@
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/*
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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) 2019 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* @author Seth Hillbrand <seth@kipro-pcb.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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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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*
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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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#include <base64.h>
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#include <cstdint>
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#include <cstddef>
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#include <limits>
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#include <vector>
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namespace {
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static const uint8_t ENCODE_BASE64[64] = {
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0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
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0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
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0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
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0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
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0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E,
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0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
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0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33,
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0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F,
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};
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static const uint8_t E = -1;
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static const uint8_t DECODE_BASE64[128] = {
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/* 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF */
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E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E,
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E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E,
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E, E, E, E, E, E, E, E, E, E, E, 62, E, E, E, 63,
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52, 53, 54, 55, 56, 57, 58, 59, 60, 61, E, E, E, E, E, E,
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E, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
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15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, E, E, E, E, E,
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E, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
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41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, E, E, E, E, E,
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};
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} // namespace
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namespace base64
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{
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size_t encode_length( size_t aInputLen )
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{
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return 4 * ( ( aInputLen + 2 ) / 3 ) + ( aInputLen + 2 ) % 3 - 2;
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}
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size_t decode_length( size_t aInputLen )
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{
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if( aInputLen % 4 == 1 )
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return 0;
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else
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return 3 * ( ( aInputLen + 2 ) / 4 ) + ( aInputLen + 2 ) % 4 - 2;
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}
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void encode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput )
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{
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size_t end = ( aInput.size() / 3 ) * 3;
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aOutput.reserve( encode_length( aInput.size() ) );
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for( size_t i = 0; i < end; i += 3 )
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{
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unsigned value = ( aInput[i] << 16 ) | ( aInput[i + 1] << 8 ) | aInput[i + 2] ;
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aOutput.emplace_back( ENCODE_BASE64[( value >> 18 ) & 0x3F] );
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aOutput.emplace_back( ENCODE_BASE64[( value >> 12 ) & 0x3F] );
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aOutput.emplace_back( ENCODE_BASE64[( value >> 6 ) & 0x3F] );
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aOutput.emplace_back( ENCODE_BASE64[value & 0x3F] );
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}
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size_t remainder = aInput.size() - end;
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if( remainder )
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{
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unsigned value = aInput[end];
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if( remainder == 2 )
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{
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value = ( value << 10 ) | ( aInput[end + 1] << 2 );
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aOutput.emplace_back( ENCODE_BASE64[( value >> 12 ) & 0x3F] );
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}
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else
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{
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value <<= 4;
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}
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aOutput.emplace_back( ENCODE_BASE64[( value >> 6 ) & 0x3F] );
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aOutput.emplace_back( ENCODE_BASE64[value & 0x3F] );
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}
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}
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void decode(const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput )
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{
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size_t end = ( aInput.size() / 4 ) * 4;
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size_t decode_size = decode_length( aInput.size() );
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if( !decode_size )
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return;
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aOutput.reserve( decode_size );
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for( size_t i = 0; i < end; i++ )
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{
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unsigned value = ( DECODE_BASE64[aInput[i] & 0x7F] << 18 ) |
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( DECODE_BASE64[aInput[i + 1] & 0x7F] << 12 ) |
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( DECODE_BASE64[aInput[i + 2] & 0x7F] << 6 ) |
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DECODE_BASE64[aInput[i + 3] & 0x7F];
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aOutput.emplace_back( ( value >> 16 ) & 0xff );
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aOutput.emplace_back( ( value >> 8 ) & 0xff );
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aOutput.emplace_back( value & 0xff );
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}
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size_t remainder = aInput.size() - end;
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if( remainder )
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{
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unsigned value = ( ( DECODE_BASE64[aInput[end] & 0x7F] ) << 6 ) |
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( DECODE_BASE64[aInput[end + 1] & 0x7F] );
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if( remainder == 3 )
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{
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value = ( value << 6 ) | ( DECODE_BASE64[aInput[end + 2] & 0x7F] );
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value >>= 2;
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aOutput.emplace_back( ( value >> 8 ) & 0xff );
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}
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else
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{
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value >>= 4;
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}
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aOutput[0] = value & 0xff ;
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}
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}
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} // base64
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@ -90,6 +90,8 @@
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* flag_sweep : 0 = CCW, 1 = CW
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* The center of ellipse is automatically calculated.
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*/
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#include <base64.h>
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#include <fctsys.h>
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#include <trigo.h>
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#include <eda_base_frame.h>
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@ -100,6 +102,8 @@
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#include <macros.h>
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#include <kicad_string.h>
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#include <cstdint>
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#include <wx/mstream.h>
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/**
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@ -577,12 +581,51 @@ void SVG_PLOTTER::PlotPoly( const std::vector<wxPoint>& aCornerList,
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void SVG_PLOTTER::PlotImage( const wxImage& aImage, const wxPoint& aPos,
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double aScaleFactor )
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{
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// in svg file we must insert a link to a png image file to plot an image
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// the image itself is not included in the svg file.
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// So we prefer skip the image, and just draw a rectangle,
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// like other plotters which do not support images
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wxSize pix_size( aImage.GetWidth(), aImage.GetHeight() );
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// Requested size (in IUs)
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DPOINT drawsize( aScaleFactor * pix_size.x,
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aScaleFactor * pix_size.y );
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// calculate the bitmap start position
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wxPoint start( aPos.x - drawsize.x / 2,
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aPos.y - drawsize.y / 2);
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// Rectangles having a 0 size value for height or width are just not drawn on Inscape,
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// so use a line when happens.
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if( drawsize.x == 0.0 || drawsize.y == 0.0 ) // Draw a line
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{
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PLOTTER::PlotImage( aImage, aPos, aScaleFactor );
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}
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else
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{
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wxMemoryOutputStream img_stream;
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aImage.SaveFile( img_stream, wxBITMAP_TYPE_PNG );
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size_t input_len = img_stream.GetOutputStreamBuffer()->GetBufferSize();
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std::vector<uint8_t> buffer( input_len );
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std::vector<uint8_t> encoded;
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img_stream.CopyTo( buffer.data(), buffer.size() );
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base64::encode( buffer, encoded );
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fprintf( outputFile,
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"<image x=\"%g\" y=\"%g\" xlink:href=\"data:image/png;base64,",
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userToDeviceSize( start.x ), userToDeviceSize( start.y )
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);
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for( size_t i = 0; i < encoded.size(); i++ )
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{
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fprintf( outputFile, "%c", static_cast<char>( encoded[i] ) );
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if( ( i % 64 ) == 63 )
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fprintf( outputFile, "\n" );
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}
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fprintf( outputFile, "\"\npreserveAspectRatio=\"none\" height=\"%g\" width=\"%g\" />",
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userToDeviceSize( drawsize.x ), userToDeviceSize( drawsize.y ) );
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}
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}
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@ -0,0 +1,41 @@
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/*
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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) 2019 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* @author Seth Hillbrand <seth@kipro-pcb.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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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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*
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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 INCLUDE_BASE64_H_
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#define INCLUDE_BASE64_H_
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#include <cstddef>
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#include <cstdint>
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#include <vector>
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namespace base64
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{
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size_t encode_length( size_t aInputLen );
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size_t decode_length( size_t aInputLen );
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void encode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput );
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void decode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput );
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}
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#endif /* INCLUDE_BASE64_H_ */
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