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) 2004 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 2004-2011 KiCad Developers, see change_log.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 <class_drawpanel.h>
#include <plot_common.h>
#include <trigo.h>
#include <wxstruct.h>
#include <richio.h>
#include <base_units.h>
#include <general.h>
#include <protos.h>
#include <lib_polyline.h>
#include <transform.h>
#include <boost/foreach.hpp>
LIB_POLYLINE::LIB_POLYLINE( LIB_COMPONENT* aParent ) :
LIB_ITEM( LIB_POLYLINE_T, aParent )
{
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m_Fill = NO_FILL;
m_Width = 0;
m_isFillable = true;
m_typeName = _( "PolyLine" );
}
bool LIB_POLYLINE::Save( OUTPUTFORMATTER& aFormatter )
{
int ccount = GetCornerCount();
aFormatter.Print( 0, "P %d %d %d %d", ccount, m_Unit, m_Convert, m_Width );
for( unsigned i = 0; i < GetCornerCount(); i++ )
{
aFormatter.Print( 0, " %d %d", m_PolyPoints[i].x, m_PolyPoints[i].y );
}
aFormatter.Print( 0, " %c\n", fill_tab[m_Fill] );
return true;
}
bool LIB_POLYLINE::Load( LINE_READER& aLineReader, wxString& aErrorMsg )
{
char* p;
int i, ccount = 0;
wxPoint pt;
char* line = (char*) aLineReader;
i = sscanf( line + 2, "%d %d %d %d", &ccount, &m_Unit, &m_Convert, &m_Width );
m_Fill = NO_FILL;
if( i < 4 )
{
aErrorMsg.Printf( _( "polyline only had %d parameters of the required 4" ), i );
return false;
}
if( ccount <= 0 )
{
aErrorMsg.Printf( _( "polyline count parameter %d is invalid" ), ccount );
return false;
}
p = strtok( line + 2, " \t\n" );
p = strtok( NULL, " \t\n" );
p = strtok( NULL, " \t\n" );
p = strtok( NULL, " \t\n" );
for( i = 0; i < ccount; i++ )
{
wxPoint point;
p = strtok( NULL, " \t\n" );
if( p == NULL || sscanf( p, "%d", &pt.x ) != 1 )
{
aErrorMsg.Printf( _( "polyline point %d X position not defined" ), i );
return false;
}
p = strtok( NULL, " \t\n" );
if( p == NULL || sscanf( p, "%d", &pt.y ) != 1 )
{
aErrorMsg.Printf( _( "polyline point %d Y position not defined" ), i );
return false;
}
AddPoint( pt );
}
if( ( p = strtok( NULL, " \t\n" ) ) != NULL )
{
if( p[0] == 'F' )
m_Fill = FILLED_SHAPE;
if( p[0] == 'f' )
m_Fill = FILLED_WITH_BG_BODYCOLOR;
}
return true;
}
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( ReturnLayerColor( LAYER_DEVICE_BACKGROUND ) );
aPlotter->PlotPoly( cornerList, FILLED_WITH_BG_BODYCOLOR, 0 );
aFill = false; // body is now filled, do not fill it later.
}
bool already_filled = m_Fill == FILLED_WITH_BG_BODYCOLOR;
aPlotter->SetColor( ReturnLayerColor( 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
{
return ( m_Width == 0 ) ? g_DrawDefaultLineThickness : m_Width;
}
void LIB_POLYLINE::drawGraphic( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
int aColor, int aDrawMode, void* aData,
const TRANSFORM& aTransform )
{
wxPoint pos1;
int color = ReturnLayerColor( LAYER_DEVICE );
wxPoint* buffer = NULL;
if( aColor < 0 ) // Used normal color or selected color
{
if( IsSelected() )
color = g_ItemSelectetColor;
}
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 >= 0 )
fill = NO_FILL;
GRSetDrawMode( aDC, aDrawMode );
if( fill == FILLED_WITH_BG_BODYCOLOR )
GRPoly( aPanel->GetClipBox(), aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(),
(m_Flags & IS_MOVED) ? color : ReturnLayerColor( LAYER_DEVICE_BACKGROUND ),
ReturnLayerColor( LAYER_DEVICE_BACKGROUND ) );
else if( fill == FILLED_SHAPE )
GRPoly( aPanel->GetClipBox(), aDC, m_PolyPoints.size(), buffer, 1, GetPenSize(),
color, color );
else
GRPoly( aPanel->GetClipBox(), 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.Inflate( m_Thickness + 1, m_Thickness + 1 );
GRRect( aPanel->GetClipBox(), aDC, bBox.GetOrigin().x, bBox.GetOrigin().y,
bBox.GetEnd().x, bBox.GetEnd().y, 0, LIGHTMAGENTA );
#endif
}
bool LIB_POLYLINE::HitTest( const wxPoint& aPosition )
{
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( wxPoint aPosition, int aThreshold, const TRANSFORM& aTransform )
{
wxPoint ref, 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;
}
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 = MIN( xmin, m_PolyPoints[ii].x );
xmax = MAX( xmax, m_PolyPoints[ii].x );
ymin = MIN( ymin, m_PolyPoints[ii].y );
ymax = MAX( ymax, m_PolyPoints[ii].y );
}
rect.SetOrigin( xmin, ymin * -1 );
rect.SetEnd( xmax, ymax * -1 );
rect.Inflate( m_Width / 2, m_Width / 2 );
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::DisplayInfo( EDA_DRAW_FRAME* aFrame )
{
wxString msg;
EDA_RECT bBox = GetBoundingBox();
LIB_ITEM::DisplayInfo( aFrame );
msg = ReturnStringFromValue( g_UserUnit, m_Width, true );
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aFrame->AppendMsgPanel( _( "Line width" ), msg, BLUE );
msg.Printf( wxT( "(%d, %d, %d, %d)" ), bBox.GetOrigin().x,
bBox.GetOrigin().y, bBox.GetEnd().x, bBox.GetEnd().y );
aFrame->AppendMsgPanel( _( "Bounding box" ), msg, BROWN );
}
wxString LIB_POLYLINE::GetSelectMenuText() const
{
return wxString::Format( _( "Polyline at (%s, %s) with %u points" ),
GetChars( CoordinateToString( m_PolyPoints[0].x ) ),
GetChars( CoordinateToString( m_PolyPoints[0].y ) ),
m_PolyPoints.size() );
}
void LIB_POLYLINE::BeginEdit( int 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
BOOST_FOREACH( 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++;
}
SetEraseLastDrawItem();
}
else if( aEditMode == IS_MOVED )
{
m_initialCursorPos = aPosition;
m_initialPos = m_PolyPoints[0];
SetEraseLastDrawItem();
}
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;
SetEraseLastDrawItem( false );
}
void LIB_POLYLINE::calcEdit( const wxPoint& aPosition )
{
if( m_Flags == IS_NEW )
{
m_PolyPoints[ GetCornerCount() - 1 ] = aPosition;
SetEraseLastDrawItem();
}
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 );
}
}