kicad/eeschema/lib_bezier.cpp

386 lines
10 KiB
C++
Raw Normal View History

/**********************/
/** class LIB_BEZIER **/
/**********************/
#include "fctsys.h"
#include "gr_basic.h"
#include "common.h"
#include "macros.h"
#include "class_drawpanel.h"
#include "plot_common.h"
#include "trigo.h"
#include "wxstruct.h"
#include "bezier_curves.h"
#include "general.h"
#include "protos.h"
#include "lib_bezier.h"
#include "transform.h"
LIB_BEZIER::LIB_BEZIER( LIB_COMPONENT* aParent ) :
LIB_DRAW_ITEM( LIB_BEZIER_T, aParent )
{
m_Fill = NO_FILL;
m_Width = 0;
m_isFillable = true;
m_typeName = _( "Bezier" );
}
LIB_BEZIER::LIB_BEZIER( const LIB_BEZIER& aBezier ) : LIB_DRAW_ITEM( aBezier )
{
m_PolyPoints = aBezier.m_PolyPoints;
m_BezierPoints = aBezier.m_BezierPoints; // Vector copy
m_Width = aBezier.m_Width;
m_Fill = aBezier.m_Fill;
}
bool LIB_BEZIER::Save( FILE* aFile )
{
int ccount = GetCornerCount();
if( fprintf( aFile, "B %d %d %d %d", ccount, m_Unit, m_Convert, m_Width ) < 0 )
return false;
for( unsigned i = 0; i < GetCornerCount(); i++ )
{
if( fprintf( aFile, " %d %d", m_BezierPoints[i].x, m_BezierPoints[i].y ) < 0 )
return false;
}
if( fprintf( aFile, " %c\n", fill_tab[m_Fill] ) < 0 )
return false;
return true;
}
bool LIB_BEZIER::Load( char* aLine, wxString& aErrorMsg )
{
char* p;
int i, ccount = 0;
wxPoint pt;
i = sscanf( &aLine[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;
}
p = strtok( &aLine[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( 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;
}
LIB_DRAW_ITEM* LIB_BEZIER::DoGenCopy()
{
LIB_BEZIER* newitem = new LIB_BEZIER(GetParent());
newitem->m_BezierPoints = m_BezierPoints; // Vector copy
newitem->m_Width = m_Width;
newitem->m_Unit = m_Unit;
newitem->m_Convert = m_Convert;
newitem->m_Flags = m_Flags;
newitem->m_Fill = m_Fill;
return (LIB_DRAW_ITEM*) newitem;
}
int LIB_BEZIER::DoCompare( const LIB_DRAW_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::DoOffset( 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::DoTestInside( 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::DoMove( const wxPoint& aPosition )
{
DoOffset( aPosition - m_PolyPoints[0] );
}
void LIB_BEZIER::DoMirrorHorizontal( 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::DoPlot( PLOTTER* aPlotter, const wxPoint& aOffset, bool aFill,
const TRANSFORM& aTransform )
{
wxASSERT( aPlotter != NULL );
size_t i;
int* Poly = (int*) MyMalloc( sizeof(int) * 2 * GetCornerCount() );
if( Poly == NULL )
return;
for( i = 0; i < m_PolyPoints.size(); i++ )
{
wxPoint pos = m_PolyPoints[i];
pos = aTransform.TransformCoordinate( pos ) + aOffset;
Poly[i * 2] = pos.x;
Poly[i * 2 + 1] = pos.y;
}
if( aFill && m_Fill == FILLED_WITH_BG_BODYCOLOR )
{
aPlotter->set_color( ReturnLayerColor( LAYER_DEVICE_BACKGROUND ) );
aPlotter->poly( i, Poly, FILLED_WITH_BG_BODYCOLOR, 0 );
}
bool already_filled = m_Fill == FILLED_WITH_BG_BODYCOLOR;
aPlotter->set_color( ReturnLayerColor( LAYER_DEVICE ) );
aPlotter->poly( i, Poly, already_filled ? NO_FILL : m_Fill, GetPenSize() );
MyFree( Poly );
}
/**
* Function GetPenSize
* @return the size of the "pen" that be used to draw or plot this item
*/
int LIB_BEZIER::GetPenSize()
{
return ( m_Width == 0 ) ? g_DrawDefaultLineThickness : m_Width;
}
void LIB_BEZIER::drawGraphic( WinEDA_DrawPanel* aPanel, wxDC* aDC, const wxPoint& aOffset,
int aColor, int aDrawMode, void* aData, const TRANSFORM& aTransform )
{
wxPoint pos1;
std::vector<wxPoint> PolyPointsTraslated;
int color = ReturnLayerColor( 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( m_Selected & IS_SELECTED )
color = g_ItemSelectetColor;
}
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->m_ClipBox, aDC, m_PolyPoints.size(),
&PolyPointsTraslated[0], 1, GetPenSize(),
(m_Flags & IS_MOVED) ? color : ReturnLayerColor( LAYER_DEVICE_BACKGROUND ),
ReturnLayerColor( LAYER_DEVICE_BACKGROUND ) );
else if( fill == FILLED_SHAPE )
GRPoly( &aPanel->m_ClipBox, aDC, m_PolyPoints.size(),
&PolyPointsTraslated[0], 1, GetPenSize(), color, color );
else
GRPoly( &aPanel->m_ClipBox, 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->m_ClipBox, aDC, bBox.GetOrigin().x, bBox.GetOrigin().y,
bBox.GetEnd().x, bBox.GetEnd().y, 0, LIGHTMAGENTA );
#endif
}
/**
* Function HitTest
* tests if the given wxPoint is within the bounds of this object.
* @param aRefPos A wxPoint to test
* @return true if a hit, else false
*/
bool LIB_BEZIER::HitTest( const wxPoint& aRefPos )
{
int mindist = m_Width ? m_Width / 2 : g_DrawDefaultLineThickness / 2;
// Have a minimal tolerance for hit test
if ( mindist < MINIMUM_SELECTION_DISTANCE )
mindist = MINIMUM_SELECTION_DISTANCE;
return HitTest( aRefPos, mindist, DefaultTransform );
}
/**
* Function HitTest
* @return if the point aPosRef is near a segment
* @param aPosRef = a wxPoint to test
* @param aThreshold = max distance to a segment
* @param aTransform = the transform matrix
*/
bool LIB_BEZIER::HitTest( wxPoint aPosRef, int aThreshold, const TRANSFORM& aTransform )
{
wxPoint ref, start, end;
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;
}
/**
* Function GetBoundingBox
* @return the boundary box for this, in library coordinates
*/
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 = 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_BEZIER::DisplayInfo( WinEDA_DrawFrame* aFrame )
{
wxString msg;
EDA_Rect bBox = GetBoundingBox();
LIB_DRAW_ITEM::DisplayInfo( aFrame );
msg = ReturnStringFromValue( g_UserUnit, m_Width, EESCHEMA_INTERNAL_UNIT, true );
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 );
}