Plot SVG embedded

ADDED: embedded image support for SVG files

Fixes #3643 | https://gitlab.com/kicad/code/kicad/issues/3643

(cherry picked from commit fa133f3f5c)
This commit is contained in:
Seth Hillbrand 2019-12-08 08:47:04 -08:00
parent 58fd6ac03e
commit dbfaf568fc
4 changed files with 250 additions and 8 deletions

View File

@ -278,6 +278,7 @@ set( COMMON_SRCS
${PLOTTERS_CONTROL_SRCS}
advanced_config.cpp
array_options.cpp
base64.cpp
base_struct.cpp
bezier_curves.cpp
bin_mod.cpp

157
common/base64.cpp Normal file
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@ -0,0 +1,157 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
*
* @author Seth Hillbrand <seth@kipro-pcb.com>
*
* 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 <base64.h>
#include <cstdint>
#include <cstddef>
#include <limits>
#include <vector>
namespace {
static const uint8_t ENCODE_BASE64[64] = {
0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,
0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
0x59, 0x5A, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66,
0x67, 0x68, 0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E,
0x6F, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76,
0x77, 0x78, 0x79, 0x7A, 0x30, 0x31, 0x32, 0x33,
0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x2B, 0x2F,
};
static const uint8_t E = -1;
static const uint8_t DECODE_BASE64[128] = {
/* 0x0 0x1 0x2 0x3 0x4 0x5 0x6 0x7 0x8 0x9 0xA 0xB 0xC 0xD 0xE 0xF */
E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E,
E, E, E, E, E, E, E, E, E, E, E, E, E, E, E, E,
E, E, E, E, E, E, E, E, E, E, E, 62, E, E, E, 63,
52, 53, 54, 55, 56, 57, 58, 59, 60, 61, E, E, E, E, E, E,
E, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, E, E, E, E, E,
E, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, E, E, E, E, E,
};
} // namespace
namespace base64
{
size_t encode_length( size_t aInputLen )
{
return 4 * ( ( aInputLen + 2 ) / 3 ) + ( aInputLen + 2 ) % 3 - 2;
}
size_t decode_length( size_t aInputLen )
{
if( aInputLen % 4 == 1 )
return 0;
else
return 3 * ( ( aInputLen + 2 ) / 4 ) + ( aInputLen + 2 ) % 4 - 2;
}
void encode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput )
{
size_t end = ( aInput.size() / 3 ) * 3;
aOutput.reserve( encode_length( aInput.size() ) );
for( size_t i = 0; i < end; i += 3 )
{
unsigned value = ( aInput[i] << 16 ) | ( aInput[i + 1] << 8 ) | aInput[i + 2] ;
aOutput.emplace_back( ENCODE_BASE64[( value >> 18 ) & 0x3F] );
aOutput.emplace_back( ENCODE_BASE64[( value >> 12 ) & 0x3F] );
aOutput.emplace_back( ENCODE_BASE64[( value >> 6 ) & 0x3F] );
aOutput.emplace_back( ENCODE_BASE64[value & 0x3F] );
}
size_t remainder = aInput.size() - end;
if( remainder )
{
unsigned value = aInput[end];
if( remainder == 2 )
{
value = ( value << 10 ) | ( aInput[end + 1] << 2 );
aOutput.emplace_back( ENCODE_BASE64[( value >> 12 ) & 0x3F] );
}
else
{
value <<= 4;
}
aOutput.emplace_back( ENCODE_BASE64[( value >> 6 ) & 0x3F] );
aOutput.emplace_back( ENCODE_BASE64[value & 0x3F] );
}
}
void decode(const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput )
{
size_t end = ( aInput.size() / 4 ) * 4;
size_t decode_size = decode_length( aInput.size() );
if( !decode_size )
return;
aOutput.reserve( decode_size );
for( size_t i = 0; i < end; i++ )
{
unsigned value = ( DECODE_BASE64[aInput[i] & 0x7F] << 18 ) |
( DECODE_BASE64[aInput[i + 1] & 0x7F] << 12 ) |
( DECODE_BASE64[aInput[i + 2] & 0x7F] << 6 ) |
DECODE_BASE64[aInput[i + 3] & 0x7F];
aOutput.emplace_back( ( value >> 16 ) & 0xff );
aOutput.emplace_back( ( value >> 8 ) & 0xff );
aOutput.emplace_back( value & 0xff );
}
size_t remainder = aInput.size() - end;
if( remainder )
{
unsigned value = ( ( DECODE_BASE64[aInput[end] & 0x7F] ) << 6 ) |
( DECODE_BASE64[aInput[end + 1] & 0x7F] );
if( remainder == 3 )
{
value = ( value << 6 ) | ( DECODE_BASE64[aInput[end + 2] & 0x7F] );
value >>= 2;
aOutput.emplace_back( ( value >> 8 ) & 0xff );
}
else
{
value >>= 4;
}
aOutput[0] = value & 0xff ;
}
}
} // base64

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@ -90,6 +90,8 @@
* flag_sweep : 0 = CCW, 1 = CW
* The center of ellipse is automatically calculated.
*/
#include <base64.h>
#include <fctsys.h>
#include <trigo.h>
#include <eda_base_frame.h>
@ -100,6 +102,8 @@
#include <macros.h>
#include <kicad_string.h>
#include <cstdint>
#include <wx/mstream.h>
/**
@ -499,7 +503,7 @@ void SVG_PLOTTER::Arc( const wxPoint& centre, double StAngle, double EndAngle, i
setFillMode( NO_FILL );
SetCurrentLineWidth( width );
fprintf( outputFile, "<path d=\"M%g %g A%g %g 0.0 %d %d %g %g \" />\n",
fprintf( outputFile, "<path d=\"M%g %g A%g %g 0.0 %d %d %g %g\" />\n",
start.x, start.y, radius_dev, radius_dev,
flg_arc, flg_sweep,
end.x, end.y );
@ -554,12 +558,51 @@ void SVG_PLOTTER::PlotPoly( const std::vector<wxPoint>& aCornerList,
void SVG_PLOTTER::PlotImage( const wxImage& aImage, const wxPoint& aPos,
double aScaleFactor )
{
// in svg file we must insert a link to a png image file to plot an image
// the image itself is not included in the svg file.
// So we prefer skip the image, and just draw a rectangle,
// like other plotters which do not support images
wxSize pix_size( aImage.GetWidth(), aImage.GetHeight() );
// Requested size (in IUs)
DPOINT drawsize( aScaleFactor * pix_size.x,
aScaleFactor * pix_size.y );
// calculate the bitmap start position
wxPoint start( aPos.x - drawsize.x / 2,
aPos.y - drawsize.y / 2);
// Rectangles having a 0 size value for height or width are just not drawn on Inscape,
// so use a line when happens.
if( drawsize.x == 0.0 || drawsize.y == 0.0 ) // Draw a line
{
PLOTTER::PlotImage( aImage, aPos, aScaleFactor );
}
else
{
wxMemoryOutputStream img_stream;
aImage.SaveFile( img_stream, wxBITMAP_TYPE_PNG );
size_t input_len = img_stream.GetOutputStreamBuffer()->GetBufferSize();
std::vector<uint8_t> buffer( input_len );
std::vector<uint8_t> encoded;
img_stream.CopyTo( buffer.data(), buffer.size() );
base64::encode( buffer, encoded );
fprintf( outputFile,
"<image x=\"%g\" y=\"%g\" xlink:href=\"data:image/png;base64,",
userToDeviceSize( start.x ), userToDeviceSize( start.y )
);
for( size_t i = 0; i < encoded.size(); i++ )
{
fprintf( outputFile, "%c", static_cast<char>( encoded[i] ) );
if( ( i % 64 ) == 63 )
fprintf( outputFile, "\n" );
}
fprintf( outputFile, "\"\npreserveAspectRatio=\"none\" height=\"%g\" width=\"%g\" />",
userToDeviceSize( drawsize.x ), userToDeviceSize( drawsize.y ) );
}
PLOTTER::PlotImage( aImage, aPos, aScaleFactor );
}
@ -633,7 +676,7 @@ bool SVG_PLOTTER::StartPlot()
// Write viewport pos and size
wxPoint origin; // TODO set to actual value
fprintf( outputFile,
" width=\"%gcm\" height=\"%gcm\" viewBox=\"%d %d %d %d \">\n",
" width=\"%gcm\" height=\"%gcm\" viewBox=\"%d %d %d %d\">\n",
(double) paperSize.x / m_IUsPerDecimil * 2.54 / 10000,
(double) paperSize.y / m_IUsPerDecimil * 2.54 / 10000,
origin.x, origin.y,
@ -660,7 +703,7 @@ bool SVG_PLOTTER::StartPlot()
m_brush_rgb_color, opacity, m_pen_rgb_color, opacity );
// output the pen cap and line joint
fputs( "stroke-linecap:round; stroke-linejoin:round; \"\n", outputFile );
fputs( "stroke-linecap:round; stroke-linejoin:round;\"\n", outputFile );
fputs( " transform=\"translate(0 0) scale(1 1)\">\n", outputFile );
return true;
}

41
include/base64.h Normal file
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@ -0,0 +1,41 @@
/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2019 KiCad Developers, see AUTHORS.txt for contributors.
*
* @author Seth Hillbrand <seth@kipro-pcb.com>
*
* 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/>.
*/
#ifndef INCLUDE_BASE64_H_
#define INCLUDE_BASE64_H_
#include <cstddef>
#include <cstdint>
#include <vector>
namespace base64
{
size_t encode_length( size_t aInputLen );
size_t decode_length( size_t aInputLen );
void encode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput );
void decode( const std::vector<uint8_t>& aInput, std::vector<uint8_t>& aOutput );
}
#endif /* INCLUDE_BASE64_H_ */