kicad/eeschema/lib_bezier.cpp

423 lines
11 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004-2012 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_bezier.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 <bezier_curves.h>
#include <richio.h>
#include <base_units.h>
#include <msgpanel.h>
#include <general.h>
#include <lib_bezier.h>
#include <transform.h>
LIB_BEZIER::LIB_BEZIER( LIB_PART* aParent ) :
LIB_ITEM( LIB_BEZIER_T, aParent )
{
m_Fill = NO_FILL;
m_Width = 0;
m_isFillable = true;
m_typeName = _( "Bezier" );
}
bool LIB_BEZIER::Save( OUTPUTFORMATTER& aFormatter )
{
int ccount = GetCornerCount();
aFormatter.Print( 0, "B %d %d %d %d", ccount, m_Unit, m_Convert, m_Width );
for( unsigned i = 0; i < GetCornerCount(); i++ )
{
aFormatter.Print( 0, " %d %d", m_BezierPoints[i].x, m_BezierPoints[i].y );
}
aFormatter.Print( 0, " %c\n", fill_tab[m_Fill] );
return true;
}
bool LIB_BEZIER::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 );
if( i !=4 )
{
aErrorMsg.Printf( _( "Bezier only had %d parameters of the required 4" ), i );
return false;
}
if( ccount <= 0 )
{
aErrorMsg.Printf( _( "Bezier count parameter %d is invalid" ), ccount );
return false;
}
strtok( line + 2, " \t\n" ); // Skip field
strtok( NULL, " \t\n" ); // Skip field
strtok( NULL, " \t\n" ); // Skip field
p = strtok( NULL, " \t\n" );
for( i = 0; i < ccount; i++ )
{
wxPoint point;
p = strtok( NULL, " \t\n" );
if( sscanf( p, "%d", &pt.x ) != 1 )
{
aErrorMsg.Printf( _( "Bezier point %d X position not defined" ), i );
return false;
}
p = strtok( NULL, " \t\n" );
if( sscanf( p, "%d", &pt.y ) != 1 )
{
aErrorMsg.Printf( _( "Bezier point %d Y position not defined" ), i );
return false;
}
m_BezierPoints.push_back( pt );
}
m_Fill = NO_FILL;
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_BEZIER::Clone() const
{
return new LIB_BEZIER( *this );
}
int LIB_BEZIER::compare( const LIB_ITEM& aOther ) const
{
wxASSERT( aOther.Type() == LIB_BEZIER_T );
const LIB_BEZIER* tmp = ( LIB_BEZIER* ) &aOther;
if( m_BezierPoints.size() != tmp->m_BezierPoints.size() )
return m_BezierPoints.size() - tmp->m_BezierPoints.size();
for( size_t i = 0; i < m_BezierPoints.size(); i++ )
{
if( m_BezierPoints[i].x != tmp->m_BezierPoints[i].x )
return m_BezierPoints[i].x - tmp->m_BezierPoints[i].x;
if( m_BezierPoints[i].y != tmp->m_BezierPoints[i].y )
return m_BezierPoints[i].y - tmp->m_BezierPoints[i].y;
}
return 0;
}
void LIB_BEZIER::SetOffset( const wxPoint& aOffset )
{
size_t i;
for( i = 0; i < m_BezierPoints.size(); i++ )
m_BezierPoints[i] += aOffset;
for( i = 0; i < m_PolyPoints.size(); i++ )
m_PolyPoints[i] += aOffset;
}
bool LIB_BEZIER::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_BEZIER::Move( const wxPoint& aPosition )
{
SetOffset( aPosition - m_PolyPoints[0] );
}
void LIB_BEZIER::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;
}
imax = m_BezierPoints.size();
for( i = 0; i < imax; i++ )
{
m_BezierPoints[i].x -= aCenter.x;
m_BezierPoints[i].x *= -1;
m_BezierPoints[i].x += aCenter.x;
}
}
void LIB_BEZIER::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;
}
imax = m_BezierPoints.size();
for( i = 0; i < imax; i++ )
{
m_BezierPoints[i].y -= aCenter.y;
m_BezierPoints[i].y *= -1;
m_BezierPoints[i].y += aCenter.y;
}
}
void LIB_BEZIER::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 );
}
imax = m_BezierPoints.size();
for( i = 0; i < imax; i++ )
{
RotatePoint( &m_BezierPoints[i], aCenter, rot_angle );
}
}
void LIB_BEZIER::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];
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;
aPlotter->SetColor( GetLayerColor( LAYER_DEVICE ) );
aPlotter->PlotPoly( cornerList, already_filled ? NO_FILL : m_Fill, GetPenSize() );
}
int LIB_BEZIER::GetPenSize() const
{
return ( m_Width == 0 ) ? GetDefaultLineThickness() : m_Width;
}
void LIB_BEZIER::drawGraphic( EDA_DRAW_PANEL* aPanel, wxDC* aDC, const wxPoint& aOffset,
EDA_COLOR_T aColor, GR_DRAWMODE aDrawMode, void* aData,
const TRANSFORM& aTransform )
{
wxPoint pos1;
std::vector<wxPoint> PolyPointsTraslated;
EDA_COLOR_T color = GetLayerColor( LAYER_DEVICE );
m_PolyPoints = Bezier2Poly( m_BezierPoints[0],
m_BezierPoints[1],
m_BezierPoints[2],
m_BezierPoints[3] );
PolyPointsTraslated.clear();
for( unsigned int i = 0; i < m_PolyPoints.size() ; i++ )
PolyPointsTraslated.push_back( aTransform.TransformCoordinate( m_PolyPoints[i] ) +
aOffset );
if( aColor < 0 ) // Used normal color or selected color
{
if( IsSelected() )
color = GetItemSelectedColor();
}
else
{
color = aColor;
}
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(),
&PolyPointsTraslated[0], 1, GetPenSize(),
(m_Flags & IS_MOVED) ? color : GetLayerColor( LAYER_DEVICE_BACKGROUND ),
GetLayerColor( LAYER_DEVICE_BACKGROUND ) );
else if( fill == FILLED_SHAPE )
GRPoly( aPanel->GetClipBox(), aDC, m_PolyPoints.size(),
&PolyPointsTraslated[0], 1, GetPenSize(), color, color );
else
GRPoly( aPanel->GetClipBox(), aDC, m_PolyPoints.size(),
&PolyPointsTraslated[0], 0, GetPenSize(), color, color );
/* Set to one (1) to draw bounding box around bezier curve 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_BEZIER::HitTest( const wxPoint& aRefPos ) const
{
int mindist = GetPenSize() / 2;
// Have a minimal tolerance for hit test
if ( mindist < MINIMUM_SELECTION_DISTANCE )
mindist = MINIMUM_SELECTION_DISTANCE;
return HitTest( aRefPos, mindist, DefaultTransform );
}
bool LIB_BEZIER::HitTest( const wxPoint &aPosRef, int aThreshold, const TRANSFORM& aTransform ) const
{
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( aPosRef, start, end, aThreshold ) )
return true;
}
return false;
}
const EDA_RECT LIB_BEZIER::GetBoundingBox() const
{
EDA_RECT rect;
int xmin, xmax, ymin, ymax;
if( !GetCornerCount() )
return rect;
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( m_Width / 2 );
return rect;
}
void LIB_BEZIER::GetMsgPanelInfo( std::vector< MSG_PANEL_ITEM >& aList )
{
wxString msg;
EDA_RECT bBox = GetBoundingBox();
LIB_ITEM::GetMsgPanelInfo( aList );
msg = StringFromValue( g_UserUnit, 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 ) );
}