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kicad/common/base_struct.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Jean-Pierre Charras, jaen-pierre.charras@gipsa-lab.inpg.com
* Copyright (C) 1992-2019 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
*/
/**
* @brief Implementation of EDA_ITEM base class for KiCad.
*/
#include <deque>
#include <fctsys.h>
#include <trigo.h>
#include <common.h>
#include <macros.h>
#include <base_screen.h>
#include <bitmaps.h>
#include <trace_helpers.h>
#include <eda_rect.h>
static const unsigned char dummy_png[] = {
0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00, 0x00, 0x00, 0x0d, 0x49, 0x48, 0x44, 0x52,
0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x10, 0x08, 0x06, 0x00, 0x00, 0x00, 0x1f, 0xf3, 0xff,
0x61, 0x00, 0x00, 0x00, 0x5f, 0x49, 0x44, 0x41, 0x54, 0x38, 0xcb, 0x63, 0xf8, 0xff, 0xff, 0x3f,
0x03, 0x25, 0x98, 0x61, 0x68, 0x1a, 0x00, 0x04, 0x46, 0x40, 0xfc, 0x02, 0x88, 0x45, 0x41, 0x1c,
0x76, 0x20, 0xfe, 0x01, 0xc4, 0xbe, 0x24, 0x18, 0x60, 0x01, 0xc4, 0x20, 0x86, 0x04, 0x88, 0xc3,
0x01, 0xe5, 0x04, 0x0c, 0xb8, 0x01, 0x37, 0x81, 0xf8, 0x04, 0x91, 0xf8, 0x0a, 0x54, 0x8f, 0x06,
0xb2, 0x01, 0x9b, 0x81, 0x78, 0x02, 0x91, 0x78, 0x05, 0x54, 0x8f, 0xca, 0xe0, 0x08, 0x03, 0x36,
0xa8, 0xbf, 0xec, 0xc8, 0x32, 0x80, 0xcc, 0x84, 0x04, 0x0a, 0xbc, 0x1d, 0x40, 0x2c, 0xc8, 0x30,
0xf4, 0x33, 0x13, 0x00, 0x6b, 0x1a, 0x46, 0x7b, 0x68, 0xe7, 0x0f, 0x0b, 0x00, 0x00, 0x00, 0x00,
0x49, 0x45, 0x4e, 0x44, 0xae, 0x42, 0x60, 0x82,
};
static const BITMAP_OPAQUE dummy_xpm[1] = {{ dummy_png, sizeof( dummy_png ), "dummy_xpm" }};
enum textbox {
ID_TEXTBOX_LIST = 8010
};
EDA_ITEM::EDA_ITEM( EDA_ITEM* parent, KICAD_T idType )
{
initVars();
m_StructType = idType;
m_Parent = parent;
}
EDA_ITEM::EDA_ITEM( KICAD_T idType )
{
initVars();
m_StructType = idType;
}
EDA_ITEM::EDA_ITEM( const EDA_ITEM& base )
{
initVars();
*this = base;
}
void EDA_ITEM::initVars()
{
m_StructType = TYPE_NOT_INIT;
Pnext = NULL; // Linked list: Link (next struct)
Pback = NULL; // Linked list: Link (previous struct)
m_Parent = NULL; // Linked list: Link (parent struct)
m_List = NULL; // I am not on any list yet
m_Flags = 0; // flags for editions and other
SetTimeStamp( 0 ); // Time stamp used for logical links
m_Status = 0;
m_forceVisible = false; // true to override the visibility setting of the item.
}
void EDA_ITEM::SetModified()
{
SetFlags( IS_CHANGED );
// If this a child object, then the parent modification state also needs to be set.
if( m_Parent )
m_Parent->SetModified();
}
const EDA_RECT EDA_ITEM::GetBoundingBox() const
{
#if defined(DEBUG)
printf( "Missing GetBoundingBox()\n" );
Show( 0, std::cout ); // tell me which classes still need GetBoundingBox support
#endif
// return a zero-sized box per default. derived classes should override
// this
return EDA_RECT( wxPoint( 0, 0 ), wxSize( 0, 0 ) );
}
EDA_ITEM* EDA_ITEM::Clone() const
{
wxCHECK_MSG( false, NULL, wxT( "Clone not implemented in derived class " ) + GetClass() +
wxT( ". Bad programmer!" ) );
}
// see base_struct.h
// many classes inherit this method, be careful:
//TODO(snh): Fix this to use std::set instead of C-style vector
SEARCH_RESULT EDA_ITEM::Visit( INSPECTOR inspector, void* testData, const KICAD_T scanTypes[] )
{
#if 0 && defined(DEBUG)
std::cout << GetClass().mb_str() << ' ';
#endif
if( IsType( scanTypes ) )
{
if( SEARCH_RESULT::QUIT == inspector( this, testData ) )
return SEARCH_RESULT::QUIT;
}
return SEARCH_RESULT::CONTINUE;
}
wxString EDA_ITEM::GetSelectMenuText( EDA_UNITS aUnits ) const
{
wxFAIL_MSG( wxT( "GetSelectMenuText() was not overridden for schematic item type " ) +
GetClass() );
return wxString( wxT( "Undefined menu text for " ) + GetClass() );
}
bool EDA_ITEM::Matches( const wxString& aText, wxFindReplaceData& aSearchData )
{
wxString text = aText;
wxString searchText = aSearchData.GetFindString();
// Don't match if searching for replaceable item and the item doesn't support text replace.
if( (aSearchData.GetFlags() & FR_SEARCH_REPLACE) && !IsReplaceable() )
return false;
if( aSearchData.GetFlags() & wxFR_WHOLEWORD )
return aText.IsSameAs( searchText, aSearchData.GetFlags() & wxFR_MATCHCASE );
if( aSearchData.GetFlags() & FR_MATCH_WILDCARD )
{
if( aSearchData.GetFlags() & wxFR_MATCHCASE )
return text.Matches( searchText );
return text.MakeUpper().Matches( searchText.MakeUpper() );
}
if( aSearchData.GetFlags() & wxFR_MATCHCASE )
return aText.Find( searchText ) != wxNOT_FOUND;
return text.MakeUpper().Find( searchText.MakeUpper() ) != wxNOT_FOUND;
}
bool EDA_ITEM::Replace( wxFindReplaceData& aSearchData, wxString& aText )
{
wxString searchString = (aSearchData.GetFlags() & wxFR_MATCHCASE) ? aText : aText.Upper();
int result = searchString.Find( (aSearchData.GetFlags() & wxFR_MATCHCASE) ?
aSearchData.GetFindString() :
aSearchData.GetFindString().Upper() );
if( result == wxNOT_FOUND )
return false;
wxString prefix = aText.Left( result );
wxString suffix;
if( aSearchData.GetFindString().length() + result < aText.length() )
suffix = aText.Right( aText.length() - ( aSearchData.GetFindString().length() + result ) );
wxLogTrace( traceFindReplace, wxT( "Replacing '%s', prefix '%s', replace '%s', suffix '%s'." ),
GetChars( aText ), GetChars( prefix ), GetChars( aSearchData.GetReplaceString() ),
GetChars( suffix ) );
aText = prefix + aSearchData.GetReplaceString() + suffix;
return true;
}
bool EDA_ITEM::operator<( const EDA_ITEM& aItem ) const
{
wxFAIL_MSG( wxString::Format( wxT( "Less than operator not defined for item type %s." ),
GetChars( GetClass() ) ) );
return false;
}
EDA_ITEM& EDA_ITEM::operator=( const EDA_ITEM& aItem )
{
// do not call initVars()
m_StructType = aItem.m_StructType;
m_Flags = aItem.m_Flags;
m_Status = aItem.m_Status;
m_Parent = aItem.m_Parent;
m_forceVisible = aItem.m_forceVisible;
// A copy of an item cannot have the same time stamp as the original item.
SetTimeStamp( GetNewTimeStamp() );
// do not copy list related fields (Pnext, Pback, m_List)
return *this;
}
const BOX2I EDA_ITEM::ViewBBox() const
{
// Basic fallback
return BOX2I( VECTOR2I( GetBoundingBox().GetOrigin() ),
VECTOR2I( GetBoundingBox().GetSize() ) );
}
void EDA_ITEM::ViewGetLayers( int aLayers[], int& aCount ) const
{
// Basic fallback
aCount = 1;
aLayers[0] = 0;
}
BITMAP_DEF EDA_ITEM::GetMenuImage() const
{
return dummy_xpm;
}
#if defined(DEBUG)
void EDA_ITEM::ShowDummy( std::ostream& os ) const
{
// XML output:
wxString s = GetClass();
os << '<' << s.Lower().mb_str() << ">"
<< " Need ::Show() override for this class "
<< "</" << s.Lower().mb_str() << ">\n";
}
std::ostream& EDA_ITEM::NestedSpace( int nestLevel, std::ostream& os )
{
for( int i = 0; i<nestLevel; ++i )
os << " ";
// number of spaces here controls indent per nest level
return os;
}
#endif
/******************/
/* Class EDA_RECT */
/******************/
void EDA_RECT::Normalize()
{
if( m_Size.y < 0 )
{
m_Size.y = -m_Size.y;
m_Pos.y -= m_Size.y;
}
if( m_Size.x < 0 )
{
m_Size.x = -m_Size.x;
m_Pos.x -= m_Size.x;
}
}
void EDA_RECT::Move( const wxPoint& aMoveVector )
{
m_Pos += aMoveVector;
}
bool EDA_RECT::Contains( const wxPoint& aPoint ) const
{
wxPoint rel_pos = aPoint - m_Pos;
wxSize size = m_Size;
if( size.x < 0 )
{
size.x = -size.x;
rel_pos.x += size.x;
}
if( size.y < 0 )
{
size.y = -size.y;
rel_pos.y += size.y;
}
return (rel_pos.x >= 0) && (rel_pos.y >= 0) && ( rel_pos.y <= size.y) && ( rel_pos.x <= size.x);
}
bool EDA_RECT::Contains( const EDA_RECT& aRect ) const
{
return Contains( aRect.GetOrigin() ) && Contains( aRect.GetEnd() );
}
bool EDA_RECT::Intersects( const wxPoint& aPoint1, const wxPoint& aPoint2 ) const
{
wxPoint point2, point4;
if( Contains( aPoint1 ) || Contains( aPoint2 ) )
return true;
point2.x = GetEnd().x;
point2.y = GetOrigin().y;
point4.x = GetOrigin().x;
point4.y = GetEnd().y;
//Only need to test 3 sides since a straight line cant enter and exit on same side
if( SegmentIntersectsSegment( aPoint1, aPoint2, GetOrigin() , point2 ) )
return true;
if( SegmentIntersectsSegment( aPoint1, aPoint2, point2 , GetEnd() ) )
return true;
if( SegmentIntersectsSegment( aPoint1, aPoint2, GetEnd() , point4 ) )
return true;
return false;
}
bool EDA_RECT::Intersects( const EDA_RECT& aRect ) const
{
if( !m_init )
return false;
// this logic taken from wxWidgets' geometry.cpp file:
bool rc;
EDA_RECT me(*this);
EDA_RECT rect(aRect);
me.Normalize(); // ensure size is >= 0
rect.Normalize(); // ensure size is >= 0
// calculate the left common area coordinate:
int left = std::max( me.m_Pos.x, rect.m_Pos.x );
// calculate the right common area coordinate:
int right = std::min( me.m_Pos.x + me.m_Size.x, rect.m_Pos.x + rect.m_Size.x );
// calculate the upper common area coordinate:
int top = std::max( me.m_Pos.y, aRect.m_Pos.y );
// calculate the lower common area coordinate:
int bottom = std::min( me.m_Pos.y + me.m_Size.y, rect.m_Pos.y + rect.m_Size.y );
// if a common area exists, it must have a positive (null accepted) size
if( left <= right && top <= bottom )
rc = true;
else
rc = false;
return rc;
}
bool EDA_RECT::Intersects( const EDA_RECT& aRect, double aRot ) const
{
if( !m_init )
return false;
/* Most rectangles will be axis aligned.
* It is quicker to check for this case and pass the rect
* to the simpler intersection test
*/
// Prevent floating point comparison errors
static const double ROT_EPS = 0.000000001;
static const double ROT_PARALLEL[] = { -3600, -1800, 0, 1800, 3600 };
static const double ROT_PERPENDICULAR[] = { -2700, -900, 0, 900, 2700 };
NORMALIZE_ANGLE_POS<double>( aRot );
// Test for non-rotated rectangle
for( int ii = 0; ii < 5; ii++ )
{
if( std::fabs( aRot - ROT_PARALLEL[ii] ) < ROT_EPS )
{
return Intersects( aRect );
}
}
// Test for rectangle rotated by multiple of 90 degrees
for( int jj = 0; jj < 4; jj++ )
{
if( std::fabs( aRot - ROT_PERPENDICULAR[jj] ) < ROT_EPS )
{
EDA_RECT rotRect;
// Rotate the supplied rect by 90 degrees
rotRect.SetOrigin( aRect.Centre() );
rotRect.Inflate( aRect.GetHeight(), aRect.GetWidth() );
return Intersects( rotRect );
}
}
/* There is some non-orthogonal rotation.
* There are three cases to test:
* A) One point of this rect is inside the rotated rect
* B) One point of the rotated rect is inside this rect
* C) One of the sides of the rotated rect intersect this
*/
wxPoint corners[4];
/* Test A : Any corners exist in rotated rect? */
corners[0] = m_Pos;
corners[1] = m_Pos + wxPoint( m_Size.x, 0 );
corners[2] = m_Pos + wxPoint( m_Size.x, m_Size.y );
corners[3] = m_Pos + wxPoint( 0, m_Size.y );
wxPoint rCentre = aRect.Centre();
for( int i = 0; i < 4; i++ )
{
wxPoint delta = corners[i] - rCentre;
RotatePoint( &delta, -aRot );
delta += rCentre;
if( aRect.Contains( delta ) )
{
return true;
}
}
/* Test B : Any corners of rotated rect exist in this one? */
int w = aRect.GetWidth() / 2;
int h = aRect.GetHeight() / 2;
// Construct corners around center of shape
corners[0] = wxPoint( -w, -h );
corners[1] = wxPoint( w, -h );
corners[2] = wxPoint( w, h );
corners[3] = wxPoint( -w, h );
// Rotate and test each corner
for( int j=0; j<4; j++ )
{
RotatePoint( &corners[j], aRot );
corners[j] += rCentre;
if( Contains( corners[j] ) )
{
return true;
}
}
/* Test C : Any sides of rotated rect intersect this */
if( Intersects( corners[0], corners[1] ) ||
Intersects( corners[1], corners[2] ) ||
Intersects( corners[2], corners[3] ) ||
Intersects( corners[3], corners[0] ) )
{
return true;
}
return false;
}
const wxPoint EDA_RECT::ClosestPointTo( const wxPoint& aPoint ) const
{
EDA_RECT me( *this );
me.Normalize(); // ensure size is >= 0
// Determine closest point to the circle centre within this rect
int nx = std::max( me.GetLeft(), std::min( aPoint.x, me.GetRight() ) );
int ny = std::max( me.GetTop(), std::min( aPoint.y, me.GetBottom() ) );
return wxPoint( nx, ny );
}
const wxPoint EDA_RECT::FarthestPointTo( const wxPoint& aPoint ) const
{
EDA_RECT me( *this );
me.Normalize(); // ensure size is >= 0
int fx = std::max( std::abs( aPoint.x - me.GetLeft() ), std::abs( aPoint.x - me.GetRight() ) );
int fy = std::max( std::abs( aPoint.y - me.GetTop() ), std::abs( aPoint.y - me.GetBottom() ) );
return wxPoint( fx, fy );
}
bool EDA_RECT::IntersectsCircle( const wxPoint& aCenter, const int aRadius ) const
{
if( !m_init )
return false;
wxPoint closest = ClosestPointTo( aCenter );
double dx = aCenter.x - closest.x;
double dy = aCenter.y - closest.y;
double r = (double) aRadius;
return ( dx * dx + dy * dy ) <= ( r * r );
}
bool EDA_RECT::IntersectsCircleEdge( const wxPoint& aCenter, const int aRadius, const int aWidth ) const
{
if( !m_init )
return false;
EDA_RECT me( *this );
me.Normalize(); // ensure size is >= 0
// Test if the circle intersects at all
if( !IntersectsCircle( aCenter, aRadius + aWidth / 2 ) )
{
return false;
}
wxPoint farpt = FarthestPointTo( aCenter );
// Farthest point must be further than the inside of the line
double fx = (double) farpt.x;
double fy = (double) farpt.y;
double r = (double) aRadius - (double) aWidth / 2;
return ( fx * fx + fy * fy ) > ( r * r );
}
EDA_RECT& EDA_RECT::Inflate( int aDelta )
{
Inflate( aDelta, aDelta );
return *this;
}
EDA_RECT& EDA_RECT::Inflate( wxCoord dx, wxCoord dy )
{
if( m_Size.x >= 0 )
{
if( m_Size.x < -2 * dx )
{
// Don't allow deflate to eat more width than we have,
m_Pos.x += m_Size.x / 2;
m_Size.x = 0;
}
else
{
// The inflate is valid.
m_Pos.x -= dx;
m_Size.x += 2 * dx;
}
}
else // size.x < 0:
{
if( m_Size.x > -2 * dx )
{
// Don't allow deflate to eat more width than we have,
m_Pos.x -= m_Size.x / 2;
m_Size.x = 0;
}
else
{
// The inflate is valid.
m_Pos.x += dx;
m_Size.x -= 2 * dx; // m_Size.x <0: inflate when dx > 0
}
}
if( m_Size.y >= 0 )
{
if( m_Size.y < -2 * dy )
{
// Don't allow deflate to eat more height than we have,
m_Pos.y += m_Size.y / 2;
m_Size.y = 0;
}
else
{
// The inflate is valid.
m_Pos.y -= dy;
m_Size.y += 2 * dy;
}
}
else // size.y < 0:
{
if( m_Size.y > 2 * dy )
{
// Don't allow deflate to eat more height than we have,
m_Pos.y -= m_Size.y / 2;
m_Size.y = 0;
}
else
{
// The inflate is valid.
m_Pos.y += dy;
m_Size.y -= 2 * dy; // m_Size.y <0: inflate when dy > 0
}
}
return *this;
}
void EDA_RECT::Merge( const EDA_RECT& aRect )
{
if( !m_init )
{
if( aRect.IsValid() )
{
m_Pos = aRect.GetPosition();
m_Size = aRect.GetSize();
m_init = true;
}
return;
}
Normalize(); // ensure width and height >= 0
EDA_RECT rect = aRect;
rect.Normalize(); // ensure width and height >= 0
wxPoint end = GetEnd();
wxPoint rect_end = rect.GetEnd();
// Change origin and size in order to contain the given rect
m_Pos.x = std::min( m_Pos.x, rect.m_Pos.x );
m_Pos.y = std::min( m_Pos.y, rect.m_Pos.y );
end.x = std::max( end.x, rect_end.x );
end.y = std::max( end.y, rect_end.y );
SetEnd( end );
}
void EDA_RECT::Merge( const wxPoint& aPoint )
{
if( !m_init )
{
m_Pos = aPoint;
m_Size = wxSize( 0, 0 );
return;
}
Normalize(); // ensure width and height >= 0
wxPoint end = GetEnd();
// Change origin and size in order to contain the given rect
m_Pos.x = std::min( m_Pos.x, aPoint.x );
m_Pos.y = std::min( m_Pos.y, aPoint.y );
end.x = std::max( end.x, aPoint.x );
end.y = std::max( end.y, aPoint.y );
SetEnd( end );
}
double EDA_RECT::GetArea() const
{
return (double) GetWidth() * (double) GetHeight();
}
EDA_RECT EDA_RECT::Common( const EDA_RECT& aRect ) const
{
EDA_RECT r;
if( Intersects( aRect ) )
{
wxPoint originA( std::min( GetOrigin().x, GetEnd().x ),
std::min( GetOrigin().y, GetEnd().y ) );
wxPoint originB( std::min( aRect.GetOrigin().x, aRect.GetEnd().x ),
std::min( aRect.GetOrigin().y, aRect.GetEnd().y ) );
wxPoint endA( std::max( GetOrigin().x, GetEnd().x ),
std::max( GetOrigin().y, GetEnd().y ) );
wxPoint endB( std::max( aRect.GetOrigin().x, aRect.GetEnd().x ),
std::max( aRect.GetOrigin().y, aRect.GetEnd().y ) );
r.SetOrigin( wxPoint( std::max( originA.x, originB.x ), std::max( originA.y, originB.y ) ) );
r.SetEnd ( wxPoint( std::min( endA.x, endB.x ), std::min( endA.y, endB.y ) ) );
}
return r;
}
const EDA_RECT EDA_RECT::GetBoundingBoxRotated( wxPoint aRotCenter, double aAngle )
{
wxPoint corners[4];
// Build the corners list
corners[0] = GetOrigin();
corners[2] = GetEnd();
corners[1].x = corners[0].x;
corners[1].y = corners[2].y;
corners[3].x = corners[2].x;
corners[3].y = corners[0].y;
// Rotate all corners, to find the bounding box
for( int ii = 0; ii < 4; ii ++ )
RotatePoint( &corners[ii], aRotCenter, aAngle );
// Find the corners bounding box
wxPoint start = corners[0];
wxPoint end = corners[0];
for( int ii = 1; ii < 4; ii ++ )
{
start.x = std::min( start.x, corners[ii].x);
start.y = std::min( start.y, corners[ii].y);
end.x = std::max( end.x, corners[ii].x);
end.y = std::max( end.y, corners[ii].y);
}
EDA_RECT bbox;
bbox.SetOrigin( start );
bbox.SetEnd( end );
return bbox;
}
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