kicad/include/plotters/plotter_hpgl.h

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2016-2021 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/>.
*/
/**
* Plotting engine (HPGL)
*
* @file plotter_hpgl.h
*/
#pragma once
#include <list>
#include "plotter.h"
class HPGL_PLOTTER : public PLOTTER
{
public:
HPGL_PLOTTER();
virtual PLOT_FORMAT GetPlotterType() const override
{
return PLOT_FORMAT::HPGL;
}
static wxString GetDefaultFileExtension()
{
return wxString( wxT( "plt" ) );
}
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/**
* Set the target length of chords used to draw approximated circles and arcs.
*
* @param chord_len the chord length in IUs.
*/
void SetTargetChordLength( double chord_len );
/// Switch to the user coordinate system
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void SetUserCoords( bool user_coords ) { useUserCoords = user_coords; }
/// Set whether the user coordinate system is fit to content
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void SetUserCoordsFit( bool user_coords_fit ) { fitUserCoords = user_coords_fit; }
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/**
* At the start of the HPGL plot pen speed and number are requested.
*/
virtual bool StartPlot() override;
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/**
* HPGL end of plot: sort and emit graphics, pen return and release.
*/
virtual bool EndPlot() override;
/// HPGL doesn't handle line thickness or color
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virtual void SetCurrentLineWidth( int width, void* aData = nullptr ) override
{
// This is the truth
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m_currentPenWidth = userToDeviceSize( penDiameter );
}
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/**
* HPGL supports dashed lines.
*/
virtual void SetDash( PLOT_DASH_TYPE dashed ) override;
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virtual void SetColor( const COLOR4D& color ) override {}
virtual void SetPenSpeed( int speed )
{
penSpeed = speed;
}
virtual void SetPenNumber( int number )
{
penNumber = number;
}
virtual void SetPenDiameter( double diameter );
virtual void SetViewport( const wxPoint& aOffset, double aIusPerDecimil,
double aScale, bool aMirror ) override;
virtual void Rect( const wxPoint& p1, const wxPoint& p2, FILL_T fill,
int width = USE_DEFAULT_LINE_WIDTH ) override;
virtual void Circle( const wxPoint& pos, int diametre, FILL_T fill,
int width = USE_DEFAULT_LINE_WIDTH ) override;
virtual void PlotPoly( const std::vector< wxPoint >& aCornerList, FILL_T aFill,
int aWidth = USE_DEFAULT_LINE_WIDTH, void* aData = nullptr ) override;
virtual void ThickSegment( const wxPoint& start, const wxPoint& end, int width,
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OUTLINE_MODE tracemode, void* aData ) override;
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/**
* Plot an arc.
*
* Command
* PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, NbSegm; PU;
* Or PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, PU;
*
* center is the center of the arc.
* StAngled is the start angle of the arc.
* EndAngle is end angle the arc.
* Radius is the radius of the arc.
*/
virtual void Arc( const wxPoint& centre, double StAngle, double EndAngle, int rayon,
FILL_T fill, int width = USE_DEFAULT_LINE_WIDTH ) override;
virtual void PenTo( const wxPoint& pos, char plume ) override;
virtual void FlashPadCircle( const wxPoint& aPadPos, int aDiameter,
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OUTLINE_MODE aTraceMode, void* aData ) override;
virtual void FlashPadOval( const wxPoint& aPadPos, const wxSize& aSize, double aPadOrient,
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OUTLINE_MODE aTraceMode, void* aData ) override;
virtual void FlashPadRect( const wxPoint& aPadPos, const wxSize& aSize,
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double aOrient, OUTLINE_MODE aTraceMode, void* aData ) override;
virtual void FlashPadRoundRect( const wxPoint& aPadPos, const wxSize& aSize,
int aCornerRadius, double aOrient,
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OUTLINE_MODE aTraceMode, void* aData ) override;
virtual void FlashPadCustom( const wxPoint& aPadPos, const wxSize& aSize, double aOrient,
SHAPE_POLY_SET* aPolygons,
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OUTLINE_MODE aTraceMode, void* aData ) override;
virtual void FlashPadTrapez( const wxPoint& aPadPos, const wxPoint *aCorners,
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double aPadOrient, OUTLINE_MODE aTraceMode,
void* aData ) override;
virtual void FlashRegularPolygon( const wxPoint& aShapePos, int aDiameter, int aCornerCount,
double aOrient, OUTLINE_MODE aTraceMode,
void* aData ) override;
protected:
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/**
* Start a new HPGL_ITEM if necessary, keeping the current one if it exists.
*
* @param location is the location of the item.
* @return whether a new item was made.
*/
bool startItem( const DPOINT& location );
/// Flush the current HPGL_ITEM and clear out the current item pointer.
void flushItem();
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/**
* Start a new HPGL_ITEM with the given string if necessary, or append the
* string to the current item.
*
* @param location is the location of the item, if a new one is made.
* @param content is the content substring.
* @return whether a new item was made.
*/
bool startOrAppendItem( const DPOINT& location, const wxString& content );
int penSpeed;
int penNumber;
double penDiameter;
double arcTargetChordLength;
double arcMinChordDegrees;
PLOT_DASH_TYPE dashType;
bool useUserCoords;
bool fitUserCoords;
struct HPGL_ITEM
{
HPGL_ITEM() :
lift_before( false ),
lift_after( false ),
pen_returns( false ),
pen( 0 ),
dashType( PLOT_DASH_TYPE::SOLID ) {}
/// Location the pen should start at
DPOINT loc_start;
/// Location the pen will be at when it finishes. If this is not known,
/// leave it equal to loc_start and set lift_after.
DPOINT loc_end;
/// Bounding box of this item
BOX2D bbox;
/// Whether the command should be executed with the pen lifted
bool lift_before;
/// Whether the pen must be lifted after the command. If the location of the pen
/// is not known, this must be set (so that another command starting at loc_end
/// is not immediately executed with no lift).
bool lift_after;
/// Whether the pen returns to its original state after the command. Otherwise,
/// the pen is assumed to be down following the command.
bool pen_returns;
/// Pen number for this command
int pen;
/// Line style for this command
PLOT_DASH_TYPE dashType;
/// Text of the command
wxString content;
};
/// Sort a list of HPGL items to improve plotting speed on mechanical plotters.
///
/// @param items - items to sort
static void sortItems( std::list<HPGL_ITEM>& items );
/// Return the plot command corresponding to a line type
static const char* lineTypeCommand( PLOT_DASH_TYPE linetype );
std::list<HPGL_ITEM> m_items;
HPGL_ITEM* m_current_item;
};