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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright The 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 <preview_items/arc_assistant.h>
#include <preview_items/draw_context.h>
#include <preview_items/preview_utils.h>
#include <gal/graphics_abstraction_layer.h>
#include <view/view.h>
#include <base_units.h>
#include <trigo.h>
using namespace KIGFX::PREVIEW;
ARC_ASSISTANT::ARC_ASSISTANT( const ARC_GEOM_MANAGER& aManager, const EDA_IU_SCALE& aIuScale,
EDA_UNITS aUnits ) :
EDA_ITEM( NOT_USED ),
m_constructMan( aManager ),
m_iuScale( aIuScale ),
m_units( aUnits )
{
}
const BOX2I ARC_ASSISTANT::ViewBBox() const
{
BOX2I tmp;
// no bounding box when no graphic shown
if( m_constructMan.IsReset() )
return tmp;
// this is an edit-time artifact; no reason to try and be smart with the bounding box
// (besides, we can't tell the text extents without a view to know what the scale is)
tmp.SetMaximum();
return tmp;
}
void ARC_ASSISTANT::ViewDraw( int aLayer, KIGFX::VIEW* aView ) const
{
KIGFX::GAL& gal = *aView->GetGAL();
// not in a position to draw anything
if( m_constructMan.IsReset() )
return;
gal.ResetTextAttributes();
const VECTOR2I origin = m_constructMan.GetOrigin();
KIGFX::PREVIEW::DRAW_CONTEXT preview_ctx( *aView );
// draw first radius line
bool dimFirstLine = m_constructMan.GetStep() > ARC_GEOM_MANAGER::SET_START;
preview_ctx.DrawLineWithAngleHighlight( origin, m_constructMan.GetStartRadiusEnd(),
dimFirstLine );
wxArrayString cursorStrings;
if( m_constructMan.GetStep() == ARC_GEOM_MANAGER::SET_START )
{
// haven't started the angle selection phase yet
EDA_ANGLE initAngle = m_constructMan.GetStartAngle();
// draw the radius guide circle
preview_ctx.DrawCircle( origin, m_constructMan.GetRadius(), true );
initAngle.Normalize720();
cursorStrings.push_back(
DimensionLabel( "r", m_constructMan.GetRadius(), m_iuScale, m_units ) );
cursorStrings.push_back( DimensionLabel( wxString::FromUTF8( "θ" ),
initAngle.AsDegrees(), m_iuScale,
EDA_UNITS::DEGREES ) );
}
else
{
preview_ctx.DrawLineWithAngleHighlight( origin, m_constructMan.GetEndRadiusEnd(), false );
EDA_ANGLE start = m_constructMan.GetStartAngle();
EDA_ANGLE subtended = m_constructMan.GetSubtended();
EDA_ANGLE normalizedEnd = ( start + subtended ).Normalize180();
// draw dimmed extender line to cursor
preview_ctx.DrawLineWithAngleHighlight( origin, m_constructMan.GetLastPoint(), true );
cursorStrings.push_back( DimensionLabel( wxString::FromUTF8( "Δθ" ), subtended.AsDegrees(),
m_iuScale, EDA_UNITS::DEGREES ) );
cursorStrings.push_back( DimensionLabel( wxString::FromUTF8( "θ" ),
normalizedEnd.AsDegrees(), m_iuScale,
EDA_UNITS::DEGREES ) );
}
// place the text next to cursor, on opposite side from radius
DrawTextNextToCursor( aView, m_constructMan.GetLastPoint(),
origin - m_constructMan.GetLastPoint(), cursorStrings,
aLayer == LAYER_SELECT_OVERLAY );
}
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