kicad/eeschema/lib_polyline.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2004-2017 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
*/
/**
* @file lib_polyline.cpp
*/
#include <fctsys.h>
#include <gr_basic.h>
#include <macros.h>
#include <sch_draw_panel.h>
#include <plotter.h>
#include <trigo.h>
#include <base_units.h>
#include <msgpanel.h>
#include <bitmaps.h>
#include <general.h>
#include <lib_polyline.h>
#include <transform.h>
LIB_POLYLINE::LIB_POLYLINE( LIB_PART* aParent ) :
LIB_ITEM( LIB_POLYLINE_T, aParent )
{
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m_Fill = NO_FILL;
m_Width = 0;
m_isFillable = true;
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m_ModifyIndex = 0;
}
EDA_ITEM* LIB_POLYLINE::Clone() const
{
return new LIB_POLYLINE( *this );
}
int LIB_POLYLINE::compare( const LIB_ITEM& aOther ) const
{
wxASSERT( aOther.Type() == LIB_POLYLINE_T );
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const LIB_POLYLINE* tmp = (LIB_POLYLINE*) &aOther;
if( m_PolyPoints.size() != tmp->m_PolyPoints.size() )
return m_PolyPoints.size() - tmp->m_PolyPoints.size();
for( size_t i = 0; i < m_PolyPoints.size(); i++ )
{
if( m_PolyPoints[i].x != tmp->m_PolyPoints[i].x )
return m_PolyPoints[i].x - tmp->m_PolyPoints[i].x;
if( m_PolyPoints[i].y != tmp->m_PolyPoints[i].y )
return m_PolyPoints[i].y - tmp->m_PolyPoints[i].y;
}
return 0;
}
void LIB_POLYLINE::SetOffset( const wxPoint& aOffset )
{
for( size_t i = 0; i < m_PolyPoints.size(); i++ )
m_PolyPoints[i] += aOffset;
}
bool LIB_POLYLINE::Inside( EDA_RECT& aRect ) const
{
for( size_t i = 0; i < m_PolyPoints.size(); i++ )
{
if( aRect.Contains( m_PolyPoints[i].x, -m_PolyPoints[i].y ) )
return true;
}
return false;
}
void LIB_POLYLINE::Move( const wxPoint& aPosition )
{
SetOffset( aPosition - m_PolyPoints[0] );
}
void LIB_POLYLINE::MirrorHorizontal( const wxPoint& aCenter )
{
size_t i, imax = m_PolyPoints.size();
for( i = 0; i < imax; i++ )
{
m_PolyPoints[i].x -= aCenter.x;
m_PolyPoints[i].x *= -1;
m_PolyPoints[i].x += aCenter.x;
}
}
void LIB_POLYLINE::MirrorVertical( const wxPoint& aCenter )
{
size_t i, imax = m_PolyPoints.size();
for( i = 0; i < imax; i++ )
{
m_PolyPoints[i].y -= aCenter.y;
m_PolyPoints[i].y *= -1;
m_PolyPoints[i].y += aCenter.y;
}
}
void LIB_POLYLINE::Rotate( const wxPoint& aCenter, bool aRotateCCW )
{
int rot_angle = aRotateCCW ? -900 : 900;
size_t i, imax = m_PolyPoints.size();
for( i = 0; i < imax; i++ )
{
RotatePoint( &m_PolyPoints[i], aCenter, rot_angle );
}
}
void LIB_POLYLINE::Plot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill,
const TRANSFORM& aTransform )
{
wxASSERT( aPlotter != NULL );
static std::vector< wxPoint > cornerList;
cornerList.clear();
for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
{
wxPoint pos = m_PolyPoints[ii];
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pos = aTransform.TransformCoordinate( pos ) + aOffset;
cornerList.push_back( pos );
}
if( aFill && m_Fill == FILLED_WITH_BG_BODYCOLOR )
{
aPlotter->SetColor( GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
aPlotter->PlotPoly( cornerList, FILLED_WITH_BG_BODYCOLOR, 0 );
}
bool already_filled = m_Fill == FILLED_WITH_BG_BODYCOLOR;
auto pen_size = GetPenSize();
if( !already_filled || pen_size > 0 )
{
pen_size = std::max( 0, pen_size );
aPlotter->SetColor( GetLayerColor( LAYER_DEVICE ) );
aPlotter->PlotPoly( cornerList, already_filled ? NO_FILL : m_Fill, GetPenSize() );
}
}
void LIB_POLYLINE::AddPoint( const wxPoint& point )
{
m_PolyPoints.push_back( point );
}
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int LIB_POLYLINE::GetPenSize() const
{
if( m_Width > 0 )
return m_Width;
if( m_Width == 0 )
return GetDefaultLineThickness();
return -1; // the minimal pen value
}
void LIB_POLYLINE::drawGraphic( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
COLOR4D aColor, GR_DRAWMODE aDrawMode, void* aData,
const TRANSFORM& aTransform )
{
wxPoint pos1;
COLOR4D color = GetLayerColor( LAYER_DEVICE );
wxPoint* buffer = NULL;
if( aColor == COLOR4D::UNSPECIFIED ) // Used normal color or selected color
{
if( IsSelected() )
color = GetItemSelectedColor();
}
else
{
color = aColor;
}
buffer = new wxPoint[ m_PolyPoints.size() ];
for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
{
buffer[ii] = aTransform.TransformCoordinate( m_PolyPoints[ii] ) + aOffset;
}
FILL_T fill = aData ? NO_FILL : m_Fill;
if( aColor != COLOR4D::UNSPECIFIED )
fill = NO_FILL;
GRSetDrawMode( aDC, aDrawMode );
EDA_RECT* const clipbox = aPanel? aPanel->GetClipBox() : NULL;
if( fill == FILLED_WITH_BG_BODYCOLOR )
GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(),
(m_Flags & IS_MOVED) ? color : GetLayerColor( LAYER_DEVICE_BACKGROUND ),
GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
else if( fill == FILLED_SHAPE )
GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(),
color, color );
else
GRPoly( clipbox, aDC, m_PolyPoints.size(), buffer, 0, GetPenSize(),
color, color );
delete[] buffer;
/* Set to one (1) to draw bounding box around polyline to validate
* bounding box calculation. */
#if 0
EDA_RECT bBox = GetBoundingBox();
bBox.RevertYAxis();
bBox = aTransform.TransformCoordinate( bBox );
bBox.Move( aOffset );
GRRect( clipbox, aDC, bBox, 0, LIGHTMAGENTA );
#endif
}
bool LIB_POLYLINE::HitTest( const wxPoint& aPosition ) const
{
int mindist = GetPenSize() / 2;
// Have a minimal tolerance for hit test
if( mindist < MINIMUM_SELECTION_DISTANCE )
mindist = MINIMUM_SELECTION_DISTANCE;
return HitTest( aPosition, mindist, DefaultTransform );
}
bool LIB_POLYLINE::HitTest( const wxPoint &aPosition, int aThreshold, const TRANSFORM& aTransform ) const
{
wxPoint start, end;
if( aThreshold < 0 )
aThreshold = GetPenSize() / 2;
for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
{
start = aTransform.TransformCoordinate( m_PolyPoints[ii - 1] );
end = aTransform.TransformCoordinate( m_PolyPoints[ii] );
if( TestSegmentHit( aPosition, start, end, aThreshold ) )
return true;
}
return false;
}
const EDA_RECT LIB_POLYLINE::GetBoundingBox() const
{
EDA_RECT rect;
int xmin, xmax, ymin, ymax;
xmin = xmax = m_PolyPoints[0].x;
ymin = ymax = m_PolyPoints[0].y;
for( unsigned ii = 1; ii < GetCornerCount(); ii++ )
{
xmin = std::min( xmin, m_PolyPoints[ii].x );
xmax = std::max( xmax, m_PolyPoints[ii].x );
ymin = std::min( ymin, m_PolyPoints[ii].y );
ymax = std::max( ymax, m_PolyPoints[ii].y );
}
rect.SetOrigin( xmin, ymin );
rect.SetEnd( xmax, ymax );
rect.Inflate( ( GetPenSize()+1 ) / 2 );
rect.RevertYAxis();
return rect;
}
void LIB_POLYLINE::DeleteSegment( const wxPoint aPosition )
{
// First segment is kept, only its end point is changed
while( GetCornerCount() > 2 )
{
m_PolyPoints.pop_back();
if( m_PolyPoints[ GetCornerCount() - 1 ] != aPosition )
{
m_PolyPoints[ GetCornerCount() - 1 ] = aPosition;
break;
}
}
}
void LIB_POLYLINE::GetMsgPanelInfo( EDA_UNITS_T aUnits, MSG_PANEL_ITEMS& aList )
{
wxString msg;
EDA_RECT bBox = GetBoundingBox();
LIB_ITEM::GetMsgPanelInfo( aUnits, aList );
msg = MessageTextFromValue( aUnits, m_Width, true );
aList.push_back( MSG_PANEL_ITEM( _( "Line Width" ), msg, BLUE ) );
msg.Printf( wxT( "(%d, %d, %d, %d)" ), bBox.GetOrigin().x,
bBox.GetOrigin().y, bBox.GetEnd().x, bBox.GetEnd().y );
aList.push_back( MSG_PANEL_ITEM( _( "Bounding Box" ), msg, BROWN ) );
}
wxString LIB_POLYLINE::GetSelectMenuText( EDA_UNITS_T aUnits ) const
{
return wxString::Format( _( "Polyline at (%s, %s) with %d points" ),
MessageTextFromValue( aUnits, m_PolyPoints[0].x ),
MessageTextFromValue( aUnits, m_PolyPoints[0].y ),
int( m_PolyPoints.size() ) );
}
BITMAP_DEF LIB_POLYLINE::GetMenuImage() const
{
return add_polygon_xpm;
}
void LIB_POLYLINE::BeginEdit( STATUS_FLAGS aEditMode, const wxPoint aPosition )
{
wxCHECK_RET( ( aEditMode & ( IS_NEW | IS_MOVED | IS_RESIZED ) ) != 0,
wxT( "Invalid edit mode for LIB_POLYLINE object." ) );
if( aEditMode == IS_NEW )
{
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m_PolyPoints.push_back( aPosition ); // Start point of first segment.
m_PolyPoints.push_back( aPosition ); // End point of first segment.
}
else if( aEditMode == IS_RESIZED )
{
// Drag one edge point of the polyline
// Find the nearest edge point to be dragged
wxPoint startPoint = m_PolyPoints[0];
// Begin with the first list point as nearest point
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int index = 0;
m_ModifyIndex = 0;
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m_initialPos = startPoint;
// First distance is the current minimum distance
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int distanceMin = (aPosition - startPoint).x * (aPosition - startPoint).x
+ (aPosition - startPoint).y * (aPosition - startPoint).y;
wxPoint prevPoint = startPoint;
// Find the right index of the point to be dragged
for( wxPoint point : m_PolyPoints )
{
int distancePoint = (aPosition - point).x * (aPosition - point).x +
(aPosition - point).y * (aPosition - point).y;
if( distancePoint < distanceMin )
{
// Save point.
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m_initialPos = point;
m_ModifyIndex = index;
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distanceMin = distancePoint;
}
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// check middle of an edge
wxPoint offset = ( aPosition + aPosition - point - prevPoint );
distancePoint = ( offset.x * offset.x + offset.y * offset.y ) / 4 + 1;
if( distancePoint < distanceMin )
{
// Save point.
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m_initialPos = point;
m_ModifyIndex = -index; // negative indicates new vertex is to be inserted
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distanceMin = distancePoint;
}
prevPoint = point;
index++;
}
}
else if( aEditMode == IS_MOVED )
{
m_initialCursorPos = aPosition;
m_initialPos = m_PolyPoints[0];
}
m_Flags = aEditMode;
}
bool LIB_POLYLINE::ContinueEdit( const wxPoint aPosition )
{
wxCHECK_MSG( ( m_Flags & ( IS_NEW | IS_MOVED | IS_RESIZED ) ) != 0, false,
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wxT( "Bad call to ContinueEdit(). LIB_POLYLINE is not being edited." ) );
if( m_Flags == IS_NEW )
{
// do not add zero length segments
if( m_PolyPoints[m_PolyPoints.size() - 2] != m_PolyPoints.back() )
m_PolyPoints.push_back( aPosition );
return true;
}
return false;
}
void LIB_POLYLINE::EndEdit( const wxPoint& aPosition, bool aAbort )
{
wxCHECK_RET( ( m_Flags & ( IS_NEW | IS_MOVED | IS_RESIZED ) ) != 0,
wxT( "Bad call to EndEdit(). LIB_POLYLINE is not being edited." ) );
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// do not include last point twice
if( m_Flags == IS_NEW && 2 < m_PolyPoints.size() )
{
if( m_PolyPoints[ m_PolyPoints.size() - 2 ] == m_PolyPoints.back() )
m_PolyPoints.pop_back();
}
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if( (m_Flags == IS_RESIZED) && (m_PolyPoints.size() > 2) ) // do not delete last two points... keep it alive
{
if( ( m_ModifyIndex > 0 && m_PolyPoints[ m_ModifyIndex ] ==
m_PolyPoints[ m_ModifyIndex - 1 ] )
|| ( m_ModifyIndex < (int) m_PolyPoints.size() - 1
&& m_PolyPoints[ m_ModifyIndex ] == m_PolyPoints[ m_ModifyIndex + 1 ] ) )
{
m_PolyPoints.erase( m_PolyPoints.begin() + m_ModifyIndex ); // delete a point on this
}
}
m_Flags = 0;
}
void LIB_POLYLINE::CalcEdit( const wxPoint& aPosition )
{
if( m_Flags == IS_NEW )
{
m_PolyPoints[ GetCornerCount() - 1 ] = aPosition;
}
else if( m_Flags == IS_RESIZED )
{
if( m_ModifyIndex < 0 ) // negative indicates new vertex is to be inserted
{
m_ModifyIndex = -m_ModifyIndex;
m_PolyPoints.insert( m_PolyPoints.begin() + m_ModifyIndex, aPosition );
}
m_PolyPoints[ m_ModifyIndex ] = aPosition;
}
else if( m_Flags == IS_MOVED )
{
Move( m_initialPos + aPosition - m_initialCursorPos );
}
}