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111 lines
3.9 KiB
C++
111 lines
3.9 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) 2017-2022 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
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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 2
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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
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "preview_items/bezier_assistant.h"
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#include <preview_items/draw_context.h>
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#include <preview_items/preview_utils.h>
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#include <gal/graphics_abstraction_layer.h>
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#include <view/view.h>
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#include <base_units.h>
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#include <trigo.h>
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using namespace KIGFX::PREVIEW;
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BEZIER_ASSISTANT::BEZIER_ASSISTANT( const BEZIER_GEOM_MANAGER& aManager,
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const EDA_IU_SCALE& aIuScale, EDA_UNITS aUnits ) :
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EDA_ITEM( NOT_USED ), m_constructMan( aManager ), m_iuScale( aIuScale ), m_units( aUnits )
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{
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}
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const BOX2I BEZIER_ASSISTANT::ViewBBox() const
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{
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BOX2I tmp;
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// no bounding box when no graphic shown
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if( m_constructMan.IsReset() )
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return tmp;
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// this is an edit-time artefact; no reason to try and be smart with the bounding box
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// (besides, we can't tell the text extents without a view to know what the scale is)
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tmp.SetMaximum();
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return tmp;
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}
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void BEZIER_ASSISTANT::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
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{
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KIGFX::GAL& gal = *aView->GetGAL();
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// not in a position to draw anything
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if( m_constructMan.IsReset() )
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return;
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gal.ResetTextAttributes();
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const VECTOR2I start = m_constructMan.GetStart();
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const BEZIER_GEOM_MANAGER::BEZIER_STEPS step = m_constructMan.GetStep();
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KIGFX::PREVIEW::DRAW_CONTEXT preview_ctx( *aView );
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int dashSize = KiROUND( aView->ToWorld( 12 ) );
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if( step >= BEZIER_GEOM_MANAGER::BEZIER_STEPS::SET_CONTROL1 )
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{
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// Draw the first control point control line
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preview_ctx.DrawLineDashed( start, m_constructMan.GetControlC1(), dashSize, dashSize / 2,
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false );
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}
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if( step >= BEZIER_GEOM_MANAGER::BEZIER_STEPS::SET_CONTROL2 )
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{
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const VECTOR2I c2vec = m_constructMan.GetControlC2() - m_constructMan.GetEnd();
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// Draw the second control point control line as a double length line
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// centred on the end point
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preview_ctx.DrawLineDashed( m_constructMan.GetEnd() - c2vec, m_constructMan.GetControlC2(),
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dashSize, dashSize / 2, false );
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}
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wxArrayString cursorStrings;
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if( step >= BEZIER_GEOM_MANAGER::BEZIER_STEPS::SET_END )
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{
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// Going to need a better way to get a length here
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// const int length = m_constructMan.GetBezierLength();
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// Have enough points to report a bezier length
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// cursorStrings.push_back( DimensionLabel( wxString::FromUTF8( "L" ), 12300000,
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// m_iuScale, m_units ) );
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}
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if( !cursorStrings.empty() )
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{
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// place the text next to cursor, on opposite side from radius
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DrawTextNextToCursor( aView, m_constructMan.GetLastPoint(),
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start - m_constructMan.GetLastPoint(), cursorStrings,
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aLayer == LAYER_SELECT_OVERLAY );
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}
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}
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