227 lines
8.0 KiB
C++
227 lines
8.0 KiB
C++
/*
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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) 2016-2021 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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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/**
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* Plotting engine (HPGL)
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*
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* @file plotter_hpgl.h
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*/
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#pragma once
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#include <list>
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#include "plotter.h"
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class HPGL_PLOTTER : public PLOTTER
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{
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public:
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HPGL_PLOTTER();
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virtual PLOT_FORMAT GetPlotterType() const override
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{
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return PLOT_FORMAT::HPGL;
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}
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static wxString GetDefaultFileExtension()
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{
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return wxString( wxT( "plt" ) );
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}
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/**
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* Set the target length of chords used to draw approximated circles and arcs.
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*
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* @param chord_len the chord length in IUs.
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*/
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void SetTargetChordLength( double chord_len );
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/// Switch to the user coordinate system
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void SetUserCoords( bool user_coords ) { useUserCoords = user_coords; }
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/// 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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/**
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* At the start of the HPGL plot pen speed and number are requested.
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*/
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virtual bool StartPlot() override;
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/**
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* HPGL end of plot: sort and emit graphics, pen return and release.
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*/
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virtual bool EndPlot() override;
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/// HPGL doesn't handle line thickness or color
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virtual void SetCurrentLineWidth( int width, void* aData = nullptr ) override
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{
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// This is the truth
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m_currentPenWidth = userToDeviceSize( penDiameter );
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}
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/**
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* HPGL supports dashed lines.
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*/
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virtual void SetDash( PLOT_DASH_TYPE dashed ) override;
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virtual void SetColor( const COLOR4D& color ) override {}
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virtual void SetPenSpeed( int speed )
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{
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penSpeed = speed;
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}
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virtual void SetPenNumber( int number )
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{
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penNumber = number;
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}
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virtual void SetPenDiameter( double diameter );
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virtual void SetViewport( const wxPoint& aOffset, double aIusPerDecimil,
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double aScale, bool aMirror ) override;
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virtual void Rect( const wxPoint& p1, const wxPoint& p2, FILL_TYPE fill,
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int width = USE_DEFAULT_LINE_WIDTH ) override;
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virtual void Circle( const wxPoint& pos, int diametre, FILL_TYPE fill,
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int width = USE_DEFAULT_LINE_WIDTH ) override;
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virtual void PlotPoly( const std::vector< wxPoint >& aCornerList,
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FILL_TYPE aFill, int aWidth = USE_DEFAULT_LINE_WIDTH,
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void* aData = nullptr ) override;
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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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/**
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* Plot an arc.
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*
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* Command
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* PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, NbSegm; PU;
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* Or PU PY x, y; PD start_arc_X AA, start_arc_Y, angle, PU;
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*
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* center is the center of the arc.
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* StAngled is the start angle of the arc.
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* EndAngle is end angle the arc.
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* Radius is the radius of the arc.
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*/
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virtual void Arc( const wxPoint& centre, double StAngle, double EndAngle,
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int rayon, FILL_TYPE fill, int width = USE_DEFAULT_LINE_WIDTH ) override;
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virtual void PenTo( const wxPoint& pos, char plume ) override;
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virtual void FlashPadCircle( const wxPoint& aPadPos, int aDiameter,
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OUTLINE_MODE aTraceMode, void* aData ) override;
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virtual void FlashPadOval( const wxPoint& aPadPos, const wxSize& aSize, double aPadOrient,
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OUTLINE_MODE aTraceMode, void* aData ) override;
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virtual void FlashPadRect( const wxPoint& aPadPos, const wxSize& aSize,
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double aOrient, OUTLINE_MODE aTraceMode, void* aData ) override;
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virtual void FlashPadRoundRect( const wxPoint& aPadPos, const wxSize& aSize,
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int aCornerRadius, double aOrient,
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OUTLINE_MODE aTraceMode, void* aData ) override;
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virtual void FlashPadCustom( const wxPoint& aPadPos, const wxSize& aSize, double aOrient,
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SHAPE_POLY_SET* aPolygons,
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OUTLINE_MODE aTraceMode, void* aData ) override;
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virtual void FlashPadTrapez( const wxPoint& aPadPos, const wxPoint *aCorners,
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double aPadOrient, OUTLINE_MODE aTraceMode,
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void* aData ) override;
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virtual void FlashRegularPolygon( const wxPoint& aShapePos, int aDiameter, int aCornerCount,
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double aOrient, OUTLINE_MODE aTraceMode,
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void* aData ) override;
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protected:
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/**
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* Start a new HPGL_ITEM if necessary, keeping the current one if it exists.
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*
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* @param location is the location of the item.
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* @return whether a new item was made.
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*/
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bool startItem( const DPOINT& location );
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/// Flush the current HPGL_ITEM and clear out the current item pointer.
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void flushItem();
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/**
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* Start a new HPGL_ITEM with the given string if necessary, or append the
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* string to the current item.
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*
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* @param location is the location of the item, if a new one is made.
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* @param content is the content substring.
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* @return whether a new item was made.
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*/
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bool startOrAppendItem( const DPOINT& location, const wxString& content );
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int penSpeed;
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int penNumber;
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double penDiameter;
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double arcTargetChordLength;
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double arcMinChordDegrees;
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PLOT_DASH_TYPE dashType;
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bool useUserCoords;
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bool fitUserCoords;
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struct HPGL_ITEM
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{
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HPGL_ITEM() :
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lift_before( false ),
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lift_after( false ),
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pen_returns( false ),
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pen( 0 ),
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dashType( PLOT_DASH_TYPE::SOLID ) {}
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/// Location the pen should start at
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DPOINT loc_start;
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/// Location the pen will be at when it finishes. If this is not known,
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/// leave it equal to loc_start and set lift_after.
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DPOINT loc_end;
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/// Bounding box of this item
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BOX2D bbox;
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/// Whether the command should be executed with the pen lifted
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bool lift_before;
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/// Whether the pen must be lifted after the command. If the location of the pen
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/// is not known, this must be set (so that another command starting at loc_end
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/// is not immediately executed with no lift).
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bool lift_after;
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/// Whether the pen returns to its original state after the command. Otherwise,
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/// the pen is assumed to be down following the command.
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bool pen_returns;
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/// Pen number for this command
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int pen;
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/// Line style for this command
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PLOT_DASH_TYPE dashType;
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/// Text of the command
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wxString content;
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};
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/// Sort a list of HPGL items to improve plotting speed on mechanical plotters.
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///
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/// @param items - items to sort
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static void sortItems( std::list<HPGL_ITEM>& items );
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/// Return the plot command corresponding to a line type
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static const char* lineTypeCommand( PLOT_DASH_TYPE linetype );
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std::list<HPGL_ITEM> m_items;
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HPGL_ITEM* m_current_item;
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};
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