haskal
/
kicad
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
kicad/pcbnew/class_drawsegment.cpp

681 lines
18 KiB
C++
Raw Blame History

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2004 Jean-Pierre Charras, jean-pierre.charras@gipsa-lab.inpg.fr
* Copyright (C) 2012 SoftPLC Corporation, Dick Hollenbeck <dick@softplc.com>
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2011 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 class_drawsegment.cpp
* @brief Class and functions to handle a graphic segments.
*/
#include <fctsys.h>
#include <macros.h>
#include <wxstruct.h>
#include <gr_basic.h>
#include <bezier_curves.h>
#include <class_drawpanel.h>
#include <class_pcb_screen.h>
#include <colors_selection.h>
#include <trigo.h>
#include <msgpanel.h>
#include <pcbnew.h>
#include <class_board.h>
#include <class_module.h>
#include <class_drawsegment.h>
#include <base_units.h>
DRAWSEGMENT::DRAWSEGMENT( BOARD_ITEM* aParent, KICAD_T idtype ) :
BOARD_ITEM( aParent, idtype )
{
m_Type = 0;
m_Angle = 0;
m_Flags = 0;
m_Shape = S_SEGMENT;
m_Width = Millimeter2iu( 0.15 ); // Gives a decent width
}
DRAWSEGMENT::~DRAWSEGMENT()
{
}
void DRAWSEGMENT::Rotate( const wxPoint& aRotCentre, double aAngle )
{
switch( m_Shape )
{
case S_ARC:
case S_SEGMENT:
case S_CIRCLE:
// these can all be done by just rotating the start and end points
RotatePoint( &m_Start, aRotCentre, aAngle);
RotatePoint( &m_End, aRotCentre, aAngle);
break;
case S_POLYGON:
for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
{
RotatePoint( &m_PolyPoints[ii], aRotCentre, aAngle);
}
break;
case S_CURVE:
RotatePoint( &m_Start, aRotCentre, aAngle);
RotatePoint( &m_End, aRotCentre, aAngle);
for( unsigned int ii = 0; ii < m_BezierPoints.size(); ii++ )
{
RotatePoint( &m_BezierPoints[ii], aRotCentre, aAngle);
}
break;
case S_RECT:
default:
// un-handled edge transform
wxASSERT_MSG( false, wxT( "DRAWSEGMENT::Rotate not implemented for "
+ ShowShape( m_Shape ) ) );
break;
}
};
void DRAWSEGMENT::Flip( const wxPoint& aCentre )
{
m_Start.y = aCentre.y - (m_Start.y - aCentre.y);
m_End.y = aCentre.y - (m_End.y - aCentre.y);
if( m_Shape == S_ARC )
m_Angle = -m_Angle;
// DRAWSEGMENT items are not allowed on copper layers, so
// copper layers count is not taken in accoun in Flip transform
SetLayer( FlipLayer( GetLayer() ) );
}
const wxPoint DRAWSEGMENT::GetCenter() const
{
wxPoint c;
switch( m_Shape )
{
case S_ARC:
case S_CIRCLE:
c = m_Start;
break;
case S_SEGMENT:
// Midpoint of the line
c = ( GetStart() + GetEnd() ) / 2;
break;
case S_POLYGON:
case S_RECT:
case S_CURVE:
c = GetBoundingBox().Centre();
break;
default:
wxASSERT_MSG( false, "DRAWSEGMENT::GetCentre not implemented for shape"
+ ShowShape( GetShape() ) );
break;
}
return c;
}
const wxPoint DRAWSEGMENT::GetArcEnd() const
{
wxPoint endPoint; // start of arc
switch( m_Shape )
{
case S_ARC:
// rotate the starting point of the arc, given by m_End, through the
// angle m_Angle to get the ending point of the arc.
// m_Start is the arc centre
endPoint = m_End; // m_End = start point of arc
RotatePoint( &endPoint, m_Start, -m_Angle );
break;
default:
;
}
return endPoint; // after rotation, the end of the arc.
}
double DRAWSEGMENT::GetArcAngleStart() const
{
// due to the Y axis orient atan2 needs - y value
double angleStart = ArcTangente( GetArcStart().y - GetCenter().y,
GetArcStart().x - GetCenter().x );
// Normalize it to 0 ... 360 deg, to avoid discontinuity for angles near 180 deg
// because 180 deg and -180 are very near angles when ampping betewwen -180 ... 180 deg.
// and this is not easy to handle in calculations
NORMALIZE_ANGLE_POS( angleStart );
return angleStart;
}
void DRAWSEGMENT::SetAngle( double aAngle )
{
m_Angle = NormalizeAngle360( aAngle );
}
MODULE* DRAWSEGMENT::GetParentModule() const
{
if( m_Parent->Type() != PCB_MODULE_T )
return NULL;
return (MODULE*) m_Parent;
}
void DRAWSEGMENT::Draw( EDA_DRAW_PANEL* panel, wxDC* DC, GR_DRAWMODE draw_mode,
const wxPoint& aOffset )
{
int ux0, uy0, dx, dy;
int l_trace;
int radius;
LAYER_ID curr_layer = ( (PCB_SCREEN*) panel->GetScreen() )->m_Active_Layer;
EDA_COLOR_T color;
BOARD * brd = GetBoard( );
if( brd->IsLayerVisible( GetLayer() ) == false )
return;
color = brd->GetLayerColor( GetLayer() );
DISPLAY_OPTIONS* displ_opts = (DISPLAY_OPTIONS*)panel->GetDisplayOptions();
if( ( draw_mode & GR_ALLOW_HIGHCONTRAST ) && displ_opts && displ_opts->m_ContrastModeDisplay )
{
if( !IsOnLayer( curr_layer ) && !IsOnLayer( Edge_Cuts ) )
ColorTurnToDarkDarkGray( &color );
}
GRSetDrawMode( DC, draw_mode );
l_trace = m_Width >> 1; // half trace width
// Line start point or Circle and Arc center
ux0 = m_Start.x + aOffset.x;
uy0 = m_Start.y + aOffset.y;
// Line end point or circle and arc start point
dx = m_End.x + aOffset.x;
dy = m_End.y + aOffset.y;
bool filled = displ_opts ? displ_opts->m_DisplayDrawItemsFill : FILLED;
if( m_Flags & FORCE_SKETCH )
filled = SKETCH;
switch( m_Shape )
{
case S_CIRCLE:
radius = KiROUND( Distance( ux0, uy0, dx, dy ) );
if( filled )
{
GRCircle( panel->GetClipBox(), DC, ux0, uy0, radius, m_Width, color );
}
else
{
GRCircle( panel->GetClipBox(), DC, ux0, uy0, radius - l_trace, color );
GRCircle( panel->GetClipBox(), DC, ux0, uy0, radius + l_trace, color );
}
break;
case S_ARC:
double StAngle, EndAngle;
radius = KiROUND( Distance( ux0, uy0, dx, dy ) );
StAngle = ArcTangente( dy - uy0, dx - ux0 );
EndAngle = StAngle + m_Angle;
if( !panel->GetPrintMirrored() )
{
if( StAngle > EndAngle )
std::swap( StAngle, EndAngle );
}
else // Mirrored mode: arc orientation is reversed
{
if( StAngle < EndAngle )
std::swap( StAngle, EndAngle );
}
if( filled )
{
GRArc( panel->GetClipBox(), DC, ux0, uy0, StAngle, EndAngle,
radius, m_Width, color );
}
else
{
GRArc( panel->GetClipBox(), DC, ux0, uy0, StAngle, EndAngle,
radius - l_trace, color );
GRArc( panel->GetClipBox(), DC, ux0, uy0, StAngle, EndAngle,
radius + l_trace, color );
}
break;
case S_CURVE:
m_BezierPoints = Bezier2Poly( m_Start, m_BezierC1, m_BezierC2, m_End );
for( unsigned int i=1; i < m_BezierPoints.size(); i++ )
{
if( filled )
{
GRFillCSegm( panel->GetClipBox(), DC,
m_BezierPoints[i].x, m_BezierPoints[i].y,
m_BezierPoints[i-1].x, m_BezierPoints[i-1].y,
m_Width, color );
}
else
{
GRCSegm( panel->GetClipBox(), DC,
m_BezierPoints[i].x, m_BezierPoints[i].y,
m_BezierPoints[i-1].x, m_BezierPoints[i-1].y,
m_Width, color );
}
}
break;
default:
if( filled )
{
GRFillCSegm( panel->GetClipBox(), DC, ux0, uy0, dx, dy, m_Width, color );
}
else
{
GRCSegm( panel->GetClipBox(), DC, ux0, uy0, dx, dy, m_Width, color );
}
break;
}
}
// see pcbstruct.h
void DRAWSEGMENT::GetMsgPanelInfo( std::vector< MSG_PANEL_ITEM >& aList )
{
wxString msg;
wxASSERT( m_Parent );
msg = _( "Drawing" );
aList.push_back( MSG_PANEL_ITEM( _( "Type" ), msg, DARKCYAN ) );
wxString shape = _( "Shape" );
switch( m_Shape )
{
case S_CIRCLE:
aList.push_back( MSG_PANEL_ITEM( shape, _( "Circle" ), RED ) );
break;
case S_ARC:
aList.push_back( MSG_PANEL_ITEM( shape, _( "Arc" ), RED ) );
msg.Printf( wxT( "%.1f" ), m_Angle / 10.0 );
aList.push_back( MSG_PANEL_ITEM( _( "Angle" ), msg, RED ) );
break;
case S_CURVE:
aList.push_back( MSG_PANEL_ITEM( shape, _( "Curve" ), RED ) );
break;
default:
{
aList.push_back( MSG_PANEL_ITEM( shape, _( "Segment" ), RED ) );
msg = ::CoordinateToString( GetLineLength( m_Start, m_End ) );
aList.push_back( MSG_PANEL_ITEM( _( "Length" ), msg, DARKGREEN ) );
// angle counter-clockwise from 3'o-clock
const double deg = RAD2DEG( atan2( (double)( m_Start.y - m_End.y ),
(double)( m_End.x - m_Start.x ) ) );
msg.Printf( wxT( "%.1f" ), deg );
aList.push_back( MSG_PANEL_ITEM( _( "Angle" ), msg, DARKGREEN ) );
}
}
wxString start;
start << GetStart();
wxString end;
end << GetEnd();
aList.push_back( MSG_PANEL_ITEM( start, end, DARKGREEN ) );
aList.push_back( MSG_PANEL_ITEM( _( "Layer" ), GetLayerName(), DARKBROWN ) );
msg = ::CoordinateToString( m_Width );
aList.push_back( MSG_PANEL_ITEM( _( "Width" ), msg, DARKCYAN ) );
}
const EDA_RECT DRAWSEGMENT::GetBoundingBox() const
{
EDA_RECT bbox;
bbox.SetOrigin( m_Start );
switch( m_Shape )
{
case S_SEGMENT:
bbox.SetEnd( m_End );
break;
case S_CIRCLE:
bbox.Inflate( GetRadius() );
break;
case S_ARC:
computeArcBBox( bbox );
break;
case S_POLYGON:
{
wxPoint p_end;
MODULE* module = GetParentModule();
for( unsigned ii = 0; ii < m_PolyPoints.size(); ii++ )
{
wxPoint pt = m_PolyPoints[ii];
if( module ) // Transform, if we belong to a module
{
RotatePoint( &pt, module->GetOrientation() );
pt += module->GetPosition();
}
if( ii == 0 )
p_end = pt;
bbox.SetX( std::min( bbox.GetX(), pt.x ) );
bbox.SetY( std::min( bbox.GetY(), pt.y ) );
p_end.x = std::max( p_end.x, pt.x );
p_end.y = std::max( p_end.y, pt.y );
}
bbox.SetEnd( p_end );
}
break;
default:
;
}
bbox.Inflate( ((m_Width+1) / 2) + 1 );
bbox.Normalize();
return bbox;
}
bool DRAWSEGMENT::HitTest( const wxPoint& aPosition ) const
{
switch( m_Shape )
{
case S_CIRCLE:
case S_ARC:
{
wxPoint relPos = aPosition - GetCenter();
int radius = GetRadius();
int dist = KiROUND( EuclideanNorm( relPos ) );
if( abs( radius - dist ) <= ( m_Width / 2 ) )
{
if( m_Shape == S_CIRCLE )
return true;
// For arcs, the test point angle must be >= arc angle start
// and <= arc angle end
// However angle values > 360 deg are not easy to handle
// so we calculate the relative angle between arc start point and teast point
// this relative arc should be < arc angle if arc angle > 0 (CW arc)
// and > arc angle if arc angle < 0 (CCW arc)
double arc_angle_start = GetArcAngleStart(); // Always 0.0 ... 360 deg, in 0.1 deg
double arc_hittest = ArcTangente( relPos.y, relPos.x );
// Calculate relative angle between the starting point of the arc, and the test point
arc_hittest -= arc_angle_start;
// Normalise arc_hittest between 0 ... 360 deg
NORMALIZE_ANGLE_POS( arc_hittest );
// Check angle: inside the arc angle when it is > 0
// and outside the not drawn arc when it is < 0
if( GetAngle() >= 0.0 )
{
if( arc_hittest <= GetAngle() )
return true;
}
else
{
if( arc_hittest >= (3600.0 + GetAngle()) )
return true;
}
}
}
break;
case S_CURVE:
for( unsigned int i= 1; i < m_BezierPoints.size(); i++)
{
if( TestSegmentHit( aPosition, m_BezierPoints[i-1], m_BezierPoints[i-1], m_Width / 2 ) )
return true;
}
break;
case S_SEGMENT:
if( TestSegmentHit( aPosition, m_Start, m_End, m_Width / 2 ) )
return true;
break;
case S_POLYGON: // not yet handled
break;
default:
wxASSERT_MSG( 0, wxString::Format( "unknown DRAWSEGMENT shape: %d", m_Shape ) );
break;
}
return false;
}
bool DRAWSEGMENT::HitTest( const EDA_RECT& aRect, bool aContained, int aAccuracy ) const
{
wxPoint p1, p2;
int radius;
float theta;
EDA_RECT arect = aRect;
arect.Inflate( aAccuracy );
switch( m_Shape )
{
case S_CIRCLE:
// Test if area intersects or contains the circle:
if( aContained )
return arect.Contains( GetBoundingBox() );
else
return arect.Intersects( GetBoundingBox() );
break;
case S_ARC:
radius = hypot( (double)( GetEnd().x - GetStart().x ),
(double)( GetEnd().y - GetStart().y ) );
theta = std::atan2( (double)( GetEnd().y - GetStart().y ),
(double)( GetEnd().x - GetStart().x ) );
//Approximate the arc with two lines. This should be accurate enough for selection.
p1.x = radius * std::cos( theta + M_PI/4 ) + GetStart().x;
p1.y = radius * std::sin( theta + M_PI/4 ) + GetStart().y;
p2.x = radius * std::cos( theta + M_PI/2 ) + GetStart().x;
p2.y = radius * std::sin( theta + M_PI/2 ) + GetStart().y;
if( aContained )
return arect.Contains( GetEnd() ) && aRect.Contains( p1 ) && aRect.Contains( p2 );
else
return arect.Intersects( GetEnd(), p1 ) || aRect.Intersects( p1, p2 );
break;
case S_SEGMENT:
if( aContained )
return arect.Contains( GetStart() ) && aRect.Contains( GetEnd() );
else
return arect.Intersects( GetStart(), GetEnd() );
break;
case S_CURVE:
case S_POLYGON: // not yet handled
break;
default:
wxASSERT_MSG( 0, wxString::Format( "unknown DRAWSEGMENT shape: %d", m_Shape ) );
break;
}
return false;
}
wxString DRAWSEGMENT::GetSelectMenuText() const
{
wxString text;
wxString temp = ::LengthDoubleToString( GetLength() );
text.Printf( _( "Pcb Graphic: %s, length %s on %s" ),
GetChars( ShowShape( m_Shape ) ),
GetChars( temp ), GetChars( GetLayerName() ) );
return text;
}
EDA_ITEM* DRAWSEGMENT::Clone() const
{
return new DRAWSEGMENT( *this );
}
const BOX2I DRAWSEGMENT::ViewBBox() const
{
// For arcs - do not include the center point in the bounding box,
// it is redundant for displaying an arc
if( m_Shape == S_ARC )
{
EDA_RECT bbox;
bbox.SetOrigin( m_End );
computeArcBBox( bbox );
return BOX2I( bbox.GetOrigin(), bbox.GetSize() );
}
return EDA_ITEM::ViewBBox();
}
void DRAWSEGMENT::computeArcBBox( EDA_RECT& aBBox ) const
{
aBBox.Merge( m_End );
// TODO perhaps the above line can be replaced with this one, so we do not include the center
//aBBox.SetOrigin( m_End );
wxPoint end = m_End;
RotatePoint( &end, m_Start, -m_Angle );
aBBox.Merge( end );
// Determine the starting quarter
// 0 right-bottom
// 1 left-bottom
// 2 left-top
// 3 right-top
unsigned int quarter = 0; // assume right-bottom
if( m_End.x < m_Start.x )
{
if( m_End.y <= m_Start.y )
quarter = 2;
else // ( m_End.y > m_Start.y )
quarter = 1;
}
else if( m_End.x >= m_Start.x )
{
if( m_End.y < m_Start.y )
quarter = 3;
else if( m_End.x == m_Start.x )
quarter = 1;
}
int radius = GetRadius();
int angle = (int) GetArcAngleStart() % 900 + m_Angle;
bool directionCW = ( m_Angle > 0 ); // Is the direction of arc clockwise?
// Make the angle positive, so we go clockwise and merge points belonging to the arc
if( !directionCW )
{
angle = 900 - angle;
quarter = ( quarter + 3 ) % 4; // -1 modulo arithmetic
}
while( angle > 900 )
{
switch( quarter )
{
case 0:
aBBox.Merge( wxPoint( m_Start.x, m_Start.y + radius ) ); // down
break;
case 1:
aBBox.Merge( wxPoint( m_Start.x - radius, m_Start.y ) ); // left
break;
case 2:
aBBox.Merge( wxPoint( m_Start.x, m_Start.y - radius ) ); // up
break;
case 3:
aBBox.Merge( wxPoint( m_Start.x + radius, m_Start.y ) ); // right
break;
}
if( directionCW )
++quarter;
else
quarter += 3; // -1 modulo arithmetic
quarter %= 4;
angle -= 900;
}
}
Reference in New Issue View Git Blame Copy Permalink