PS_plotter.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
 * Copyright (C) 2020-2022 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 2
 * 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, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <convert_basic_shapes_to_polygon.h>
#include <macros.h>
#include <math/util.h> // for KiROUND
#include <trigo.h>
 
#include <plotters/plotters_pslike.h>
 
 
/* Forward declaration of the font width metrics
 (yes extern! this is the way to forward declare variables */
extern const double hv_widths[256];
extern const double hvb_widths[256];
extern const double hvo_widths[256];
extern const double hvbo_widths[256];
 
const double PSLIKE_PLOTTER::postscriptTextAscent = 0.718;
 
 
// return a id used to select a ps macro (see StartPlot() ) from a FILL_TYPE
// fill mode, for arc, rect, circle and poly draw primitives
static int getFillId( FILL_T aFill )
{
 if( aFill == FILL_T::NO_FILL )
 return 0;
 
 if( aFill == FILL_T::FILLED_SHAPE )
 return 1;
 
 return 2;
}
 
 
void PSLIKE_PLOTTER::SetColor( const COLOR4D& color )
{
 if( m_colorMode )
 {
 if( m_negativeMode )
 emitSetRGBColor( 1 - color.r, 1 - color.g, 1 - color.b, color.a );
 else
 emitSetRGBColor( color.r, color.g, color.b, color.a );
 }
 else
 {
 /* B/W Mode - Use BLACK or WHITE for all items
 * note the 2 colors are used in B&W mode, mainly by Pcbnew to draw
 * holes in white on pads in black
 */
 double k = 1; // White
 
 if( color != COLOR4D::WHITE )
 k = 0;
 
 if( m_negativeMode )
 emitSetRGBColor( 1 - k, 1 - k, 1 - k, 1.0 );
 else
 emitSetRGBColor( k, k, k, 1.0 );
 }
}
 
 
void PSLIKE_PLOTTER::FlashPadOval( const VECTOR2I& aPadPos, const VECTOR2I& aSize,
  const EDA_ANGLE& aPadOrient, OUTLINE_MODE aTraceMode,
 void* aData )
{
 wxASSERT( m_outputFile );
 
 VECTOR2I size( aSize );
 EDA_ANGLE orient( aPadOrient );
 
 // The pad is reduced to an oval by dy > dx
 if( size.x > size.y )
 {
 std::swap( size.x, size.y );
 orient += ANGLE_90;
 }
 
 int delta = size.y - size.x;
 VECTOR2I a( 0, -delta / 2 );
 VECTOR2I b( 0, delta / 2 );
 
 RotatePoint( a, orient );
 RotatePoint( b, orient );
 
 if( aTraceMode == FILLED )
 ThickSegment( a + aPadPos, b + aPadPos, size.x, aTraceMode, nullptr );
 else
 sketchOval( aPadPos, size, orient, -1 );
}
 
 
void PSLIKE_PLOTTER::FlashPadCircle( const VECTOR2I& aPadPos, int aDiameter,
 OUTLINE_MODE aTraceMode, void* aData )
{
 if( aTraceMode == FILLED )
 {
 Circle( aPadPos, aDiameter, FILL_T::FILLED_SHAPE, 0 );
 }
 else // Plot a ring:
 {
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
 Circle( aPadPos, aDiameter, FILL_T::NO_FILL, GetCurrentLineWidth() );
 }
 
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
}
 
 
void PSLIKE_PLOTTER::FlashPadRect( const VECTOR2I& aPadPos, const VECTOR2I& aSize,
 const EDA_ANGLE& aPadOrient, OUTLINE_MODE aTraceMode,
 void* aData )
{
 std::vector<VECTOR2I> cornerList;
 VECTOR2I size( aSize );
 cornerList.reserve( 4 );
 
 if( aTraceMode == FILLED )
 SetCurrentLineWidth( 0 );
 else
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
 
 int dx = size.x / 2;
 int dy = size.y / 2;
 
 VECTOR2I corner;
 corner.x = aPadPos.x - dx;
 corner.y = aPadPos.y + dy;
 cornerList.push_back( corner );
 corner.x = aPadPos.x - dx;
 corner.y = aPadPos.y - dy;
 cornerList.push_back( corner );
 corner.x = aPadPos.x + dx;
 corner.y = aPadPos.y - dy;
 cornerList.push_back( corner );
 corner.x = aPadPos.x + dx;
 corner.y = aPadPos.y + dy,
 cornerList.push_back( corner );
 
 for( unsigned ii = 0; ii < cornerList.size(); ii++ )
 RotatePoint( cornerList[ii], aPadPos, aPadOrient );
 
 cornerList.push_back( cornerList[0] );
 
 PlotPoly( cornerList, ( aTraceMode == FILLED ) ? FILL_T::FILLED_SHAPE : FILL_T::NO_FILL,
 GetCurrentLineWidth() );
}
 
 
void PSLIKE_PLOTTER::FlashPadRoundRect( const VECTOR2I& aPadPos, const VECTOR2I& aSize,
 int aCornerRadius, const EDA_ANGLE& aOrient,
 OUTLINE_MODE aTraceMode, void* aData )
{
 VECTOR2I size( aSize );
 
 if( aTraceMode == FILLED )
 {
 SetCurrentLineWidth( 0 );
 }
 else
 {
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
 }
 
 
 SHAPE_POLY_SET outline;
 TransformRoundChamferedRectToPolygon( outline, aPadPos, size, aOrient, aCornerRadius, 0.0, 0,
 0, GetPlotterArcHighDef(), ERROR_INSIDE );
 
 std::vector<VECTOR2I> cornerList;
 
 // TransformRoundRectToPolygon creates only one convex polygon
 SHAPE_LINE_CHAIN& poly = outline.Outline( 0 );
 cornerList.reserve( poly.PointCount() );
 
 for( int ii = 0; ii < poly.PointCount(); ++ii )
 cornerList.emplace_back( poly.CPoint( ii ).x, poly.CPoint( ii ).y );
 
 // Close polygon
 cornerList.push_back( cornerList[0] );
 
 PlotPoly( cornerList, ( aTraceMode == FILLED ) ? FILL_T::FILLED_SHAPE : FILL_T::NO_FILL,
 GetCurrentLineWidth() );
}
 
 
void PSLIKE_PLOTTER::FlashPadCustom( const VECTOR2I& aPadPos, const VECTOR2I& aSize,
 const EDA_ANGLE& aOrient, SHAPE_POLY_SET* aPolygons,
 OUTLINE_MODE aTraceMode, void* aData )
{
 VECTOR2I size( aSize );
 
 if( aTraceMode == FILLED )
 {
 SetCurrentLineWidth( 0 );
 }
 else
 {
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
 }
 
 
 std::vector<VECTOR2I> cornerList;
 
 for( int cnt = 0; cnt < aPolygons->OutlineCount(); ++cnt )
 {
 SHAPE_LINE_CHAIN& poly = aPolygons->Outline( cnt );
 cornerList.clear();
 
 for( int ii = 0; ii < poly.PointCount(); ++ii )
 cornerList.emplace_back( poly.CPoint( ii ).x, poly.CPoint( ii ).y );
 
 // Close polygon
 cornerList.push_back( cornerList[0] );
 
 PlotPoly( cornerList, ( aTraceMode == FILLED ) ? FILL_T::FILLED_SHAPE : FILL_T::NO_FILL,
 GetCurrentLineWidth() );
 }
}
 
 
void PSLIKE_PLOTTER::FlashPadTrapez( const VECTOR2I& aPadPos, const VECTOR2I* aCorners,
 const EDA_ANGLE& aPadOrient, OUTLINE_MODE aTraceMode,
 void* aData )
{
 static std::vector<VECTOR2I> cornerList;
 cornerList.clear();
 
 for( int ii = 0; ii < 4; ii++ )
 cornerList.push_back( aCorners[ii] );
 
 if( aTraceMode == FILLED )
 {
 SetCurrentLineWidth( 0 );
 }
 else
 {
 SetCurrentLineWidth( USE_DEFAULT_LINE_WIDTH );
 }
 
 for( int ii = 0; ii < 4; ii++ )
 {
 RotatePoint( cornerList[ii], aPadOrient );
 cornerList[ii] += aPadPos;
 }
 
 cornerList.push_back( cornerList[0] );
 PlotPoly( cornerList, ( aTraceMode == FILLED ) ? FILL_T::FILLED_SHAPE : FILL_T::NO_FILL,
 GetCurrentLineWidth() );
}
 
 
void PSLIKE_PLOTTER::FlashRegularPolygon( const VECTOR2I& aShapePos, int aRadius, int aCornerCount,
 const EDA_ANGLE& aOrient, OUTLINE_MODE aTraceMode,
 void* aData )
{
 // Do nothing
 wxASSERT( 0 );
}
 
 
std::string PSLIKE_PLOTTER::encodeStringForPlotter( const wxString& aUnicode )
{
 // Write on a std::string a string escaped for postscript/PDF
 std::string converted;
 
 converted += '(';
 
 for( unsigned i = 0; i < aUnicode.Len(); i++ )
 {
 // Laziness made me use stdio buffering yet another time...
 wchar_t ch = aUnicode[i];
 
 if( ch < 256 )
 {
 switch (ch)
 {
 // The ~ shouldn't reach the outside
 case '~':
 break;
 
 // These characters must be escaped
 case '(':
 case ')':
 case '\\':
 converted += '\\';
 KI_FALLTHROUGH;
 
 default:
 converted += ch;
 break;
 }
 }
 }
 
 converted += ')';
 
 return converted;
}
 
 
int PSLIKE_PLOTTER::returnPostscriptTextWidth( const wxString& aText, int aXSize,
 bool aItalic, bool aBold )
{
 const double *width_table = aBold ? ( aItalic ? hvbo_widths : hvb_widths )
 : ( aItalic ? hvo_widths : hv_widths );
 double tally = 0;
 
 for( unsigned i = 0; i < aText.length(); i++ )
 {
 wchar_t AsciiCode = aText[i];
 
 // Skip the negation marks and untabled points.
 if( AsciiCode != '~' && AsciiCode < 256 )
 {
 tally += width_table[AsciiCode];
 }
 }
 
 // Widths are proportional to height, but height is enlarged by a scaling factor.
 return KiROUND( aXSize * tally / postscriptTextAscent );
}
 
 
void PSLIKE_PLOTTER::postscriptOverlinePositions( const wxString& aText, int aXSize,
 bool aItalic, bool aBold,
 std::vector<int> *pos_pairs )
{
 /* XXX This function is *too* similar to returnPostscriptTextWidth.
 Consider merging them... */
 const double *width_table = aBold ? ( aItalic ? hvbo_widths : hvb_widths )
 : ( aItalic ? hvo_widths : hv_widths );
 double tally = 0;
 
 for( unsigned i = 0; i < aText.length(); i++ )
 {
 wchar_t AsciiCode = aText[i];
 
 // Skip the negation marks and untabled points
 if( AsciiCode != '~' && AsciiCode < 256 )
 {
 tally += width_table[AsciiCode];
 }
 else
 {
 if( AsciiCode == '~' )
 pos_pairs->push_back( KiROUND( aXSize * tally / postscriptTextAscent ) );
 }
 }
 
 // Special rule: we have to complete the last bar if the ~ aren't matched
 if( pos_pairs->size() % 2 == 1 )
 pos_pairs->push_back( KiROUND( aXSize * tally / postscriptTextAscent ) );
}
 
 
void PS_PLOTTER::SetViewport( const VECTOR2I& aOffset, double aIusPerDecimil,
 double aScale, bool aMirror )
{
 wxASSERT( !m_outputFile );
 m_plotMirror = aMirror;
 m_plotOffset = aOffset;
 m_plotScale = aScale;
 m_IUsPerDecimil = aIusPerDecimil;
 m_iuPerDeviceUnit = 1.0 / aIusPerDecimil;
 
 /* Compute the paper size in IUs */
 m_paperSize = m_pageInfo.GetSizeMils();
 m_paperSize.x *= 10.0 * aIusPerDecimil;
 m_paperSize.y *= 10.0 * aIusPerDecimil;
}
 
 
void PSLIKE_PLOTTER::computeTextParameters( const VECTOR2I& aPos,
 const wxString& aText,
 const EDA_ANGLE& aOrient,
 const VECTOR2I& aSize,
 bool aMirror,
 enum GR_TEXT_H_ALIGN_T aH_justify,
 enum GR_TEXT_V_ALIGN_T aV_justify,
 int aWidth,
 bool aItalic,
 bool aBold,
 double *wideningFactor,
 double *ctm_a,
 double *ctm_b,
 double *ctm_c,
 double *ctm_d,
 double *ctm_e,
 double *ctm_f,
 double *heightFactor )
{
 // Compute the starting position (compensated for alignment)
 VECTOR2I start_pos = aPos;
 
 // This is an approximation of the text bounds (in IUs)
 int tw = returnPostscriptTextWidth( aText, aSize.x, aItalic, aWidth );
 int th = aSize.y;
 int dx, dy;
 
 switch( aH_justify )
 {
 case GR_TEXT_H_ALIGN_CENTER: dx = -tw / 2; break;
 case GR_TEXT_H_ALIGN_RIGHT: dx = -tw; break;
 case GR_TEXT_H_ALIGN_LEFT: dx = 0; break;
 }
 
 switch( aV_justify )
 {
 case GR_TEXT_V_ALIGN_CENTER: dy = th / 2; break;
 case GR_TEXT_V_ALIGN_TOP: dy = th; break;
 case GR_TEXT_V_ALIGN_BOTTOM: dy = 0; break;
 }
 
 RotatePoint( &dx, &dy, aOrient );
 RotatePoint( &tw, &th, aOrient );
 start_pos.x += dx;
 start_pos.y += dy;
 VECTOR2D pos_dev = userToDeviceCoordinates( start_pos );
 VECTOR2D sz_dev = userToDeviceSize( aSize );
 
 // Now returns the final values... the widening factor
 *wideningFactor = sz_dev.x / sz_dev.y;
 
 // Mirrored texts must be plotted as mirrored!
 if( m_plotMirror )
 *wideningFactor = -*wideningFactor;
 
 // The CTM transformation matrix
 double alpha = m_plotMirror ? aOrient.Invert().AsRadians() : aOrient.AsRadians();
 double sinalpha = sin( alpha );
 double cosalpha = cos( alpha );
 
 *ctm_a = cosalpha;
 *ctm_b = sinalpha;
 *ctm_c = -sinalpha;
 *ctm_d = cosalpha;
 *ctm_e = pos_dev.x;
 *ctm_f = pos_dev.y;
 
 // This is because the letters are less than 1 unit high
 *heightFactor = sz_dev.y / postscriptTextAscent;
}
 
 
void PS_PLOTTER::SetCurrentLineWidth( int aWidth, void* aData )
{
 wxASSERT( m_outputFile );
 
 if( aWidth == DO_NOT_SET_LINE_WIDTH )
 return;
 else if( aWidth == USE_DEFAULT_LINE_WIDTH )
 aWidth = m_renderSettings->GetDefaultPenWidth();
 else if( aWidth == 0 )
 aWidth = 1;
 
 wxASSERT_MSG( aWidth > 0, "Plotter called to set negative pen width" );
 
 if( aWidth != GetCurrentLineWidth() )
 fprintf( m_outputFile, "%g setlinewidth\n", userToDeviceSize( aWidth ) );
 
 m_currentPenWidth = aWidth;
}
 
 
void PS_PLOTTER::emitSetRGBColor( double r, double g, double b, double a )
{
 wxASSERT( m_outputFile );
 
 // Postscript treats all colors as opaque, so the best we can do with alpha is generate
 // an appropriate blended color assuming white paper. (It's possible that a halftone would
 // work better on *some* drivers, but most drivers are known to still treat halftones as
 // opaque and remove any colors underneath them.)
 if( a < 1.0 )
 {
 r = ( r * a ) + ( 1 - a );
 g = ( g * a ) + ( 1 - a );
 b = ( b * a ) + ( 1 - a );
 }
 
 // XXX why %.3g ? shouldn't %g suffice? who cares...
 fprintf( m_outputFile, "%.3g %.3g %.3g setrgbcolor\n", r, g, b );
}
 
 
void PS_PLOTTER::SetDash( int aLineWidth, PLOT_DASH_TYPE aLineStyle )
{
 switch( aLineStyle )
 {
 case PLOT_DASH_TYPE::DASH:
 fprintf( m_outputFile, "[%d %d] 0 setdash\n",
 (int) GetDashMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ) );
 break;
 
 case PLOT_DASH_TYPE::DOT:
 fprintf( m_outputFile, "[%d %d] 0 setdash\n",
 (int) GetDotMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ) );
 break;
 
 case PLOT_DASH_TYPE::DASHDOT:
 fprintf( m_outputFile, "[%d %d %d %d] 0 setdash\n",
 (int) GetDashMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ),
 (int) GetDotMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ) );
 break;
 
 case PLOT_DASH_TYPE::DASHDOTDOT:
 fprintf( m_outputFile, "[%d %d %d %d %d %d] 0 setdash\n",
 (int) GetDashMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ),
 (int) GetDotMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ),
 (int) GetDotMarkLenIU( aLineWidth ), (int) GetDashGapLenIU( aLineWidth ) );
 break;
 
 default:
 fputs( "solidline\n", m_outputFile );
 }
}
 
 
void PS_PLOTTER::Rect( const VECTOR2I& p1, const VECTOR2I& p2, FILL_T fill, int width )
{
 VECTOR2D p1_dev = userToDeviceCoordinates( p1 );
 VECTOR2D p2_dev = userToDeviceCoordinates( p2 );
 
 SetCurrentLineWidth( width );
 fprintf( m_outputFile, "%g %g %g %g rect%d\n", p1_dev.x, p1_dev.y,
 p2_dev.x - p1_dev.x, p2_dev.y - p1_dev.y, getFillId( fill ) );
}
 
 
void PS_PLOTTER::Circle( const VECTOR2I& pos, int diametre, FILL_T fill, int width )
{
 wxASSERT( m_outputFile );
 VECTOR2D pos_dev = userToDeviceCoordinates( pos );
 double radius = userToDeviceSize( diametre / 2.0 );
 
 SetCurrentLineWidth( width );
 fprintf( m_outputFile, "%g %g %g cir%d\n", pos_dev.x, pos_dev.y, radius, getFillId( fill ) );
}
 
 
VECTOR2D mapCoords( const VECTOR2D& aSource )
{
 return VECTOR2D( aSource.x, aSource.y );
}
 
 
void PS_PLOTTER::Arc( const VECTOR2I& aCenter, const VECTOR2I& aStart, const VECTOR2I& aEnd,
 FILL_T aFill, int aWidth, int aMaxError )
{
 wxASSERT( m_outputFile );
 
 VECTOR2D center_device = userToDeviceCoordinates( aCenter );
 VECTOR2D start_device = userToDeviceCoordinates( aStart );
 VECTOR2D end_device = userToDeviceCoordinates( aEnd );
 double radius_device = ( start_device - center_device ).EuclideanNorm();
 EDA_ANGLE startAngle( mapCoords( start_device - center_device ) );
 EDA_ANGLE endAngle( mapCoords( end_device - center_device ) );
 
 // userToDeviceCoordinates gets our start/ends out of order
 std::swap( startAngle, endAngle );
 
 SetCurrentLineWidth( aWidth );
 
 fprintf( m_outputFile, "%g %g %g %g %g arc%d\n",
 center_device.x,
 center_device.y,
 radius_device,
 startAngle.AsDegrees(),
 endAngle.AsDegrees(),
 getFillId( aFill ) );
}
 
void PS_PLOTTER::PlotPoly( const std::vector<VECTOR2I>& aCornerList, FILL_T aFill, int aWidth,
 void* aData )
{
 if( aCornerList.size() <= 1 )
 return;
 
 SetCurrentLineWidth( aWidth );
 
 VECTOR2D pos = userToDeviceCoordinates( aCornerList[0] );
 fprintf( m_outputFile, "newpath\n%g %g moveto\n", pos.x, pos.y );
 
 for( unsigned ii = 1; ii < aCornerList.size(); ii++ )
 {
 pos = userToDeviceCoordinates( aCornerList[ii] );
 fprintf( m_outputFile, "%g %g lineto\n", pos.x, pos.y );
 }
 
 // Close/(fill) the path
 fprintf( m_outputFile, "poly%d\n", getFillId( aFill ) );
}
 
 
void PS_PLOTTER::PlotImage( const wxImage& aImage, const VECTOR2I& aPos, double aScaleFactor )
{
 VECTOR2I pix_size; // size of the bitmap in pixels
 pix_size.x = aImage.GetWidth();
 pix_size.y = aImage.GetHeight();
 VECTOR2D drawsize( aScaleFactor * pix_size.x,
 aScaleFactor * pix_size.y ); // requested size of image
 
 // calculate the bottom left corner position of bitmap
 VECTOR2I start = aPos;
 start.x -= drawsize.x / 2; // left
 start.y += drawsize.y / 2; // bottom (Y axis reversed)
 
 // calculate the top right corner position of bitmap
 VECTOR2I end;
 end.x = start.x + drawsize.x;
 end.y = start.y - drawsize.y;
 
 fprintf( m_outputFile, "/origstate save def\n" );
 fprintf( m_outputFile, "/pix %d string def\n", pix_size.x );
 
 // Locate lower-left corner of image
 VECTOR2D start_dev = userToDeviceCoordinates( start );
 fprintf( m_outputFile, "%g %g translate\n", start_dev.x, start_dev.y );
 
 // Map image size to device
 VECTOR2D end_dev = userToDeviceCoordinates( end );
 fprintf( m_outputFile, "%g %g scale\n",
 std::abs( end_dev.x - start_dev.x ),
 std::abs( end_dev.y - start_dev.y ) );
 
 // Dimensions of source image (in pixels
 fprintf( m_outputFile, "%d %d 8", pix_size.x, pix_size.y );
 
 // Map unit square to source
 fprintf( m_outputFile, " [%d 0 0 %d 0 %d]\n", pix_size.x, -pix_size.y , pix_size.y);
 
 // include image data in ps file
 fprintf( m_outputFile, "{currentfile pix readhexstring pop}\n" );
 
 if( m_colorMode )
 fputs( "false 3 colorimage\n", m_outputFile );
 else
 fputs( "image\n", m_outputFile );
 
 // Single data source, 3 colors, Output RGB data (hexadecimal)
 // (or the same downscaled to gray)
 int jj = 0;
 
 for( int yy = 0; yy < pix_size.y; yy ++ )
 {
 for( int xx = 0; xx < pix_size.x; xx++, jj++ )
 {
 if( jj >= 16 )
 {
 jj = 0;
 fprintf( m_outputFile, "\n");
 }
 
 int red, green, blue;
 red = aImage.GetRed( xx, yy) & 0xFF;
 green = aImage.GetGreen( xx, yy) & 0xFF;
 blue = aImage.GetBlue( xx, yy) & 0xFF;
 
 // PS doesn't support alpha, so premultiply against white background
 if( aImage.HasAlpha() )
 {
 unsigned char alpha = aImage.GetAlpha( xx, yy ) & 0xFF;
 
 if( alpha < 0xFF )
 {
 float a = 1.0 - ( (float) alpha / 255.0 );
 red = ( int )( red + ( a * 0xFF ) ) & 0xFF;
 green = ( int )( green + ( a * 0xFF ) ) & 0xFF;
 blue = ( int )( blue + ( a * 0xFF ) ) & 0xFF;
 }
 }
 
 if( aImage.HasMask() )
 {
 if( red == aImage.GetMaskRed() && green == aImage.GetMaskGreen()
 && blue == aImage.GetMaskBlue() )
 {
 red = 0xFF;
 green = 0xFF;
 blue = 0xFF;
 }
 }
 
 if( m_colorMode )
 {
 fprintf( m_outputFile, "%2.2X%2.2X%2.2X", red, green, blue );
 }
 else
 {
 // Greyscale conversion (CIE 1931)
 unsigned char grey = KiROUND( red * 0.2126 + green * 0.7152 + blue * 0.0722 );
 
 fprintf( m_outputFile, "%2.2X", grey );
 }
 }
 }
 
 fprintf( m_outputFile, "\n");
 fprintf( m_outputFile, "origstate restore\n" );
}
 
 
void PS_PLOTTER::PenTo( const VECTOR2I& pos, char plume )
{
 wxASSERT( m_outputFile );
 
 if( plume == 'Z' )
 {
 if( m_penState != 'Z' )
 {
 fputs( "stroke\n", m_outputFile );
 m_penState = 'Z';
 m_penLastpos.x = -1;
 m_penLastpos.y = -1;
 }
 
 return;
 }
 
 if( m_penState == 'Z' )
 {
 fputs( "newpath\n", m_outputFile );
 }
 
 if( m_penState != plume || pos != m_penLastpos )
 {
 VECTOR2D pos_dev = userToDeviceCoordinates( pos );
 fprintf( m_outputFile, "%g %g %sto\n",
  pos_dev.x, pos_dev.y,
 ( plume=='D' ) ? "line" : "move" );
 }
 
 m_penState = plume;
 m_penLastpos = pos;
}
 
 
bool PS_PLOTTER::StartPlot( const wxString& aPageNumber )
{
 wxASSERT( m_outputFile );
 
 static const char* PSMacro[] =
 {
 "%%BeginProlog\n",
 "/line { newpath moveto lineto stroke } bind def\n",
 "/cir0 { newpath 0 360 arc stroke } bind def\n",
 "/cir1 { newpath 0 360 arc gsave fill grestore stroke } bind def\n",
 "/cir2 { newpath 0 360 arc gsave fill grestore stroke } bind def\n",
 "/arc0 { newpath arc stroke } bind def\n",
 "/arc1 { newpath 4 index 4 index moveto arc closepath gsave fill\n",
 " grestore stroke } bind def\n",
 "/arc2 { newpath 4 index 4 index moveto arc closepath gsave fill\n",
 " grestore stroke } bind def\n",
 "/poly0 { stroke } bind def\n",
 "/poly1 { closepath gsave fill grestore stroke } bind def\n",
 "/poly2 { closepath gsave fill grestore stroke } bind def\n",
 "/rect0 { rectstroke } bind def\n",
 "/rect1 { rectfill } bind def\n",
 "/rect2 { rectfill } bind def\n",
 "/linemode0 { 0 setlinecap 0 setlinejoin 0 setlinewidth } bind def\n",
 "/linemode1 { 1 setlinecap 1 setlinejoin } bind def\n",
 "/dashedline { [200] 100 setdash } bind def\n",
 "/solidline { [] 0 setdash } bind def\n",
 
 // This is for 'hidden' text (search anchors for PDF)
 "/phantomshow { moveto\n",
 " /KicadFont findfont 0.000001 scalefont setfont\n",
 " show } bind def\n",
 
 // This is for regular postscript text
 "/textshow { gsave\n",
 " findfont exch scalefont setfont concat 1 scale 0 0 moveto show\n",
 " } bind def\n",
 
 // Utility for getting Latin1 encoded fonts
 "/reencodefont {\n",
 " findfont dup length dict begin\n",
 " { 1 index /FID ne\n",
 " { def }\n",
 " { pop pop } ifelse\n",
 " } forall\n",
 " /Encoding ISOLatin1Encoding def\n",
 " currentdict\n",
 " end } bind def\n"
 
 // Remap AdobeStandard fonts to Latin1
 "/KicadFont /Helvetica reencodefont definefont pop\n",
 "/KicadFont-Bold /Helvetica-Bold reencodefont definefont pop\n",
 "/KicadFont-Oblique /Helvetica-Oblique reencodefont definefont pop\n",
 "/KicadFont-BoldOblique /Helvetica-BoldOblique reencodefont definefont pop\n",
 "%%EndProlog\n",
 nullptr
 };
 
 time_t time1970 = time( nullptr );
 
 fputs( "%!PS-Adobe-3.0\n", m_outputFile ); // Print header
 
 fprintf( m_outputFile, "%%%%Creator: %s\n", TO_UTF8( m_creator ) );
 
 /* A "newline" character ("\n") is not included in the following string,
 because it is provided by the ctime() function. */
 fprintf( m_outputFile, "%%%%CreationDate: %s", ctime( &time1970 ) );
 fprintf( m_outputFile, "%%%%Title: %s\n", encodeStringForPlotter( m_title ).c_str() );
 fprintf( m_outputFile, "%%%%Pages: 1\n" );
 fprintf( m_outputFile, "%%%%PageOrder: Ascend\n" );
 
 // Print boundary box in 1/72 pixels per inch, box is in mils
 const double BIGPTsPERMIL = 0.072;
 
 /* The coordinates of the lower left corner of the boundary
 box need to be "rounded down", but the coordinates of its
 upper right corner need to be "rounded up" instead. */
 VECTOR2I psPaperSize = m_pageInfo.GetSizeMils();
 
 if( !m_pageInfo.IsPortrait() )
 {
 psPaperSize.x = m_pageInfo.GetHeightMils();
 psPaperSize.y = m_pageInfo.GetWidthMils();
 }
 
 fprintf( m_outputFile, "%%%%BoundingBox: 0 0 %d %d\n",
 (int) ceil( psPaperSize.x * BIGPTsPERMIL ),
 (int) ceil( psPaperSize.y * BIGPTsPERMIL ) );
 
 // Specify the size of the sheet and the name associated with that size.
 // (If the "User size" option has been selected for the sheet size,
 // identify the sheet size as "Custom" (rather than as "User"), but
 // otherwise use the name assigned by KiCad for each sheet size.)
 //
 // (The Document Structuring Convention also supports sheet weight,
 // sheet color, and sheet type properties being specified within a
 // %%DocumentMedia comment, but they are not being specified here;
 // a zero and two null strings are subsequently provided instead.)
 //
 // (NOTE: m_Size.y is *supposed* to be listed before m_Size.x;
 // the order in which they are specified is not wrong!)
 // Also note pageSize is given in mils, not in internal units and must be
 // converted to internal units.
 
 if( m_pageInfo.IsCustom() )
 {
 fprintf( m_outputFile, "%%%%DocumentMedia: Custom %d %d 0 () ()\n",
 KiROUND( psPaperSize.x * BIGPTsPERMIL ),
 KiROUND( psPaperSize.y * BIGPTsPERMIL ) );
 }
 else // a standard paper size
 {
 fprintf( m_outputFile, "%%%%DocumentMedia: %s %d %d 0 () ()\n",
 TO_UTF8( m_pageInfo.GetType() ),
 KiROUND( psPaperSize.x * BIGPTsPERMIL ),
 KiROUND( psPaperSize.y * BIGPTsPERMIL ) );
 }
 
 if( m_pageInfo.IsPortrait() )
 fprintf( m_outputFile, "%%%%Orientation: Portrait\n" );
 else
 fprintf( m_outputFile, "%%%%Orientation: Landscape\n" );
 
  fprintf( m_outputFile, "%%%%EndComments\n" );
 
 // Now specify various other details.
 
 for( int ii = 0; PSMacro[ii] != nullptr; ii++ )
 {
 fputs( PSMacro[ii], m_outputFile );
 }
 
 // The following strings are output here (rather than within PSMacro[])
 // to highlight that it has been provided to ensure that the contents of
 // the postscript file comply with the Document Structuring Convention.
 std::string page_num = encodeStringForPlotter( aPageNumber );
 
 fprintf( m_outputFile, "%%Page: %s 1\n", page_num.c_str() );
 
 fputs( "%%BeginPageSetup\n"
 "gsave\n"
 "0.0072 0.0072 scale\n" // Configure postscript for decimils coordinates
 "linemode1\n", m_outputFile );
 
 
 // Rototranslate the coordinate to achieve the landscape layout
 if( !m_pageInfo.IsPortrait() )
 fprintf( m_outputFile, "%d 0 translate 90 rotate\n", 10 * psPaperSize.x );
 
 // Apply the user fine scale adjustments
 if( plotScaleAdjX != 1.0 || plotScaleAdjY != 1.0 )
 fprintf( m_outputFile, "%g %g scale\n", plotScaleAdjX, plotScaleAdjY );
 
 // Set default line width
 fprintf( m_outputFile, "%g setlinewidth\n",
 userToDeviceSize( m_renderSettings->GetDefaultPenWidth() ) );
 fputs( "%%EndPageSetup\n", m_outputFile );
 
 return true;
}
 
 
bool PS_PLOTTER::EndPlot()
{
 wxASSERT( m_outputFile );
 fputs( "showpage\n"
 "grestore\n"
 "%%EOF\n", m_outputFile );
 fclose( m_outputFile );
 m_outputFile = nullptr;
 
 return true;
}
 
 
 
void PS_PLOTTER::Text( const VECTOR2I& aPos,
 const COLOR4D& aColor,
 const wxString& aText,
 const EDA_ANGLE& aOrient,
 const VECTOR2I& aSize,
 enum GR_TEXT_H_ALIGN_T aH_justify,
 enum GR_TEXT_V_ALIGN_T aV_justify,
 int aWidth,
 bool aItalic,
 bool aBold,
 bool aMultilineAllowed,
 KIFONT::FONT* aFont,
 void* aData )
{
 SetCurrentLineWidth( aWidth );
 SetColor( aColor );
 
 // Draw the hidden postscript text (if requested)
 if( m_textMode == PLOT_TEXT_MODE::PHANTOM )
 {
 std::string ps_test = encodeStringForPlotter( aText );
 VECTOR2D pos_dev = userToDeviceCoordinates( aPos );
 fprintf( m_outputFile, "%s %g %g phantomshow\n", ps_test.c_str(), pos_dev.x, pos_dev.y );
 }
 
 PLOTTER::Text( aPos, aColor, aText, aOrient, aSize, aH_justify, aV_justify, aWidth, aItalic,
 aBold, aMultilineAllowed, aFont, aData );
}
 
 
const double hv_widths[256] = {
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.355, 0.556, 0.556, 0.889, 0.667, 0.191,
 0.333, 0.333, 0.389, 0.584, 0.278, 0.333, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556,
 0.556, 0.556, 0.278, 0.278, 0.584, 0.584, 0.584, 0.556,
 1.015, 0.667, 0.667, 0.722, 0.722, 0.667, 0.611, 0.778,
 0.722, 0.278, 0.500, 0.667, 0.556, 0.833, 0.722, 0.778,
 0.667, 0.778, 0.722, 0.667, 0.611, 0.722, 0.667, 0.944,
 0.667, 0.667, 0.611, 0.278, 0.278, 0.278, 0.469, 0.556,
 0.333, 0.556, 0.556, 0.500, 0.556, 0.556, 0.278, 0.556,
 0.556, 0.222, 0.222, 0.500, 0.222, 0.833, 0.556, 0.556,
 0.556, 0.556, 0.333, 0.500, 0.278, 0.556, 0.500, 0.722,
 0.500, 0.500, 0.500, 0.334, 0.260, 0.334, 0.584, 0.278,
 0.278, 0.278, 0.222, 0.556, 0.333, 1.000, 0.556, 0.556,
 0.333, 1.000, 0.667, 0.333, 1.000, 0.278, 0.278, 0.278,
 0.278, 0.222, 0.222, 0.333, 0.333, 0.350, 0.556, 1.000,
 0.333, 1.000, 0.500, 0.333, 0.944, 0.278, 0.278, 0.667,
 0.278, 0.333, 0.556, 0.556, 0.556, 0.556, 0.260, 0.556,
 0.333, 0.737, 0.370, 0.556, 0.584, 0.333, 0.737, 0.333,
 0.400, 0.584, 0.333, 0.333, 0.333, 0.556, 0.537, 0.278,
 0.333, 0.333, 0.365, 0.556, 0.834, 0.834, 0.834, 0.611,
 0.667, 0.667, 0.667, 0.667, 0.667, 0.667, 1.000, 0.722,
 0.667, 0.667, 0.667, 0.667, 0.278, 0.278, 0.278, 0.278,
 0.722, 0.722, 0.778, 0.778, 0.778, 0.778, 0.778, 0.584,
 0.778, 0.722, 0.722, 0.722, 0.722, 0.667, 0.667, 0.611,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.889, 0.500,
 0.556, 0.556, 0.556, 0.556, 0.278, 0.278, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.584,
 0.611, 0.556, 0.556, 0.556, 0.556, 0.500, 0.556, 0.500
};
 
 
const double hvb_widths[256] = {
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.333, 0.474, 0.556, 0.556, 0.889, 0.722, 0.238,
 0.333, 0.333, 0.389, 0.584, 0.278, 0.333, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556,
 0.556, 0.556, 0.333, 0.333, 0.584, 0.584, 0.584, 0.611,
 0.975, 0.722, 0.722, 0.722, 0.722, 0.667, 0.611, 0.778,
 0.722, 0.278, 0.556, 0.722, 0.611, 0.833, 0.722, 0.778,
 0.667, 0.778, 0.722, 0.667, 0.611, 0.722, 0.667, 0.944,
 0.667, 0.667, 0.611, 0.333, 0.278, 0.333, 0.584, 0.556,
 0.333, 0.556, 0.611, 0.556, 0.611, 0.556, 0.333, 0.611,
 0.611, 0.278, 0.278, 0.556, 0.278, 0.889, 0.611, 0.611,
 0.611, 0.611, 0.389, 0.556, 0.333, 0.611, 0.556, 0.778,
 0.556, 0.556, 0.500, 0.389, 0.280, 0.389, 0.584, 0.278,
 0.278, 0.278, 0.278, 0.556, 0.500, 1.000, 0.556, 0.556,
 0.333, 1.000, 0.667, 0.333, 1.000, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.500, 0.500, 0.350, 0.556, 1.000,
 0.333, 1.000, 0.556, 0.333, 0.944, 0.278, 0.278, 0.667,
 0.278, 0.333, 0.556, 0.556, 0.556, 0.556, 0.280, 0.556,
 0.333, 0.737, 0.370, 0.556, 0.584, 0.333, 0.737, 0.333,
 0.400, 0.584, 0.333, 0.333, 0.333, 0.611, 0.556, 0.278,
 0.333, 0.333, 0.365, 0.556, 0.834, 0.834, 0.834, 0.611,
 0.722, 0.722, 0.722, 0.722, 0.722, 0.722, 1.000, 0.722,
 0.667, 0.667, 0.667, 0.667, 0.278, 0.278, 0.278, 0.278,
 0.722, 0.722, 0.778, 0.778, 0.778, 0.778, 0.778, 0.584,
 0.778, 0.722, 0.722, 0.722, 0.722, 0.667, 0.667, 0.611,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.889, 0.556,
 0.556, 0.556, 0.556, 0.556, 0.278, 0.278, 0.278, 0.278,
 0.611, 0.611, 0.611, 0.611, 0.611, 0.611, 0.611, 0.584,
 0.611, 0.611, 0.611, 0.611, 0.611, 0.556, 0.611, 0.556
};
 
 
const double hvo_widths[256] = {
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.355, 0.556, 0.556, 0.889, 0.667, 0.191,
 0.333, 0.333, 0.389, 0.584, 0.278, 0.333, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556,
 0.556, 0.556, 0.278, 0.278, 0.584, 0.584, 0.584, 0.556,
 1.015, 0.667, 0.667, 0.722, 0.722, 0.667, 0.611, 0.778,
 0.722, 0.278, 0.500, 0.667, 0.556, 0.833, 0.722, 0.778,
 0.667, 0.778, 0.722, 0.667, 0.611, 0.722, 0.667, 0.944,
 0.667, 0.667, 0.611, 0.278, 0.278, 0.278, 0.469, 0.556,
 0.333, 0.556, 0.556, 0.500, 0.556, 0.556, 0.278, 0.556,
 0.556, 0.222, 0.222, 0.500, 0.222, 0.833, 0.556, 0.556,
 0.556, 0.556, 0.333, 0.500, 0.278, 0.556, 0.500, 0.722,
 0.500, 0.500, 0.500, 0.334, 0.260, 0.334, 0.584, 0.278,
 0.278, 0.278, 0.222, 0.556, 0.333, 1.000, 0.556, 0.556,
 0.333, 1.000, 0.667, 0.333, 1.000, 0.278, 0.278, 0.278,
 0.278, 0.222, 0.222, 0.333, 0.333, 0.350, 0.556, 1.000,
 0.333, 1.000, 0.500, 0.333, 0.944, 0.278, 0.278, 0.667,
 0.278, 0.333, 0.556, 0.556, 0.556, 0.556, 0.260, 0.556,
 0.333, 0.737, 0.370, 0.556, 0.584, 0.333, 0.737, 0.333,
 0.400, 0.584, 0.333, 0.333, 0.333, 0.556, 0.537, 0.278,
 0.333, 0.333, 0.365, 0.556, 0.834, 0.834, 0.834, 0.611,
 0.667, 0.667, 0.667, 0.667, 0.667, 0.667, 1.000, 0.722,
 0.667, 0.667, 0.667, 0.667, 0.278, 0.278, 0.278, 0.278,
 0.722, 0.722, 0.778, 0.778, 0.778, 0.778, 0.778, 0.584,
 0.778, 0.722, 0.722, 0.722, 0.722, 0.667, 0.667, 0.611,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.889, 0.500,
 0.556, 0.556, 0.556, 0.556, 0.278, 0.278, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.584,
 0.611, 0.556, 0.556, 0.556, 0.556, 0.500, 0.556, 0.500
};
 
 
const double hvbo_widths[256] = {
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278, 0.278,
 0.278, 0.333, 0.474, 0.556, 0.556, 0.889, 0.722, 0.238,
 0.333, 0.333, 0.389, 0.584, 0.278, 0.333, 0.278, 0.278,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.556,
 0.556, 0.556, 0.333, 0.333, 0.584, 0.584, 0.584, 0.611,
 0.975, 0.722, 0.722, 0.722, 0.722, 0.667, 0.611, 0.778,
 0.722, 0.278, 0.556, 0.722, 0.611, 0.833, 0.722, 0.778,
 0.667, 0.778, 0.722, 0.667, 0.611, 0.722, 0.667, 0.944,
 0.667, 0.667, 0.611, 0.333, 0.278, 0.333, 0.584, 0.556,
 0.333, 0.556, 0.611, 0.556, 0.611, 0.556, 0.333, 0.611,
 0.611, 0.278, 0.278, 0.556, 0.278, 0.889, 0.611, 0.611,
 0.611, 0.611, 0.389, 0.556, 0.333, 0.611, 0.556, 0.778,
 0.556, 0.556, 0.500, 0.389, 0.280, 0.389, 0.584, 0.278,
 0.278, 0.278, 0.278, 0.556, 0.500, 1.000, 0.556, 0.556,
 0.333, 1.000, 0.667, 0.333, 1.000, 0.278, 0.278, 0.278,
 0.278, 0.278, 0.278, 0.500, 0.500, 0.350, 0.556, 1.000,
 0.333, 1.000, 0.556, 0.333, 0.944, 0.278, 0.278, 0.667,
 0.278, 0.333, 0.556, 0.556, 0.556, 0.556, 0.280, 0.556,
 0.333, 0.737, 0.370, 0.556, 0.584, 0.333, 0.737, 0.333,
 0.400, 0.584, 0.333, 0.333, 0.333, 0.611, 0.556, 0.278,
 0.333, 0.333, 0.365, 0.556, 0.834, 0.834, 0.834, 0.611,
 0.722, 0.722, 0.722, 0.722, 0.722, 0.722, 1.000, 0.722,
 0.667, 0.667, 0.667, 0.667, 0.278, 0.278, 0.278, 0.278,
 0.722, 0.722, 0.778, 0.778, 0.778, 0.778, 0.778, 0.584,
 0.778, 0.722, 0.722, 0.722, 0.722, 0.667, 0.667, 0.611,
 0.556, 0.556, 0.556, 0.556, 0.556, 0.556, 0.889, 0.556,
 0.556, 0.556, 0.556, 0.556, 0.278, 0.278, 0.278, 0.278,
 0.611, 0.611, 0.611, 0.611, 0.611, 0.611, 0.611, 0.584,
 0.611, 0.611, 0.611, 0.611, 0.611, 0.556, 0.611, 0.556
};