98 lines
3.2 KiB
C++
98 lines
3.2 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) 2020 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/two_point_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 <view/view.h>
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using namespace KIGFX::PREVIEW;
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TWO_POINT_ASSISTANT::TWO_POINT_ASSISTANT( const TWO_POINT_GEOMETRY_MANAGER& aManager,
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EDA_UNITS aUnits, GEOM_SHAPE aShape ) :
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EDA_ITEM( NOT_USED ),
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m_constructMan( aManager ),
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m_units( aUnits ),
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m_shape( aShape )
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{
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}
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const BOX2I TWO_POINT_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 TWO_POINT_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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const VECTOR2I origin = m_constructMan.GetOrigin();
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const VECTOR2I end = m_constructMan.GetEnd();
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const VECTOR2I radVec = end - origin;
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if( radVec.x == 0 && radVec.y == 0 )
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{
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return; // text next to cursor jumps around a lot in this corner case
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}
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gal.ResetTextAttributes();
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std::vector<wxString> cursorStrings;
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if( m_shape == GEOM_SHAPE::SEGMENT )
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{
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cursorStrings.push_back( DimensionLabel( "l", radVec.EuclideanNorm(), m_units ) );
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}
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else if( m_shape == GEOM_SHAPE::RECT )
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{
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cursorStrings.push_back( DimensionLabel( "x", std::abs( radVec.x ), m_units ) );
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cursorStrings.push_back( DimensionLabel( "y", std::abs( radVec.y ), m_units ) );
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}
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else if( m_shape == GEOM_SHAPE::CIRCLE )
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{
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KIGFX::PREVIEW::DRAW_CONTEXT preview_ctx( *aView );
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preview_ctx.DrawLine( origin, end, false );
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cursorStrings.push_back( DimensionLabel( "r", radVec.EuclideanNorm(), m_units ) );
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}
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// place the text next to cursor, on opposite side from drawing
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DrawTextNextToCursor( aView, end, origin - end, cursorStrings, aLayer == LAYER_SELECT_OVERLAY );
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}
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