/**
* Draw labelled ticks on a line. Ticks are spaced according to a
* maximum density. Miror ticks are not labelled.
*
* @param aGal the GAL to draw on
* @param aOrigin start of line to draw ticks on
* @param aLine line vector
* @param aMinorTickLen length of minor ticks in IU
*/
void drawTicksAlongLine( KIGFX::GAL& aGal, const VECTOR2D& aOrigin,
const VECTOR2D& aLine, double aMinorTickLen )
{
VECTOR2D tickLine = aLine.Rotate( -M_PI_2 );
double tickSpace;
TICK_FORMAT tickF = getTickFormatForScale( aGal.GetWorldScale(), tickSpace );
// number of ticks in whole ruler
int numTicks = (int) std::ceil( aLine.EuclideanNorm() / tickSpace );
// work out which way up the tick labels go
double labelAngle = -tickLine.Angle();
if( aLine.Angle() > 0 )
{
aGal.SetHorizontalJustify( GR_TEXT_HJUSTIFY_LEFT );
}
else
{
aGal.SetHorizontalJustify( GR_TEXT_HJUSTIFY_RIGHT );
labelAngle += M_PI;
}
// text and ticks are dimmed
aGal.SetStrokeColor( PreviewOverlayDefaultColor().WithAlpha( PreviewOverlayDeemphAlpha( true ) ) );
const auto labelOffset = tickLine.Resize( aMinorTickLen * ( majorTickLengthFactor + 1 ) );
for( int i = 0; i < numTicks; ++i )
{
const auto tickPos = aOrigin + aLine.Resize( tickSpace * i );
double length = aMinorTickLen;
bool drawLabel = false;
if( i % tickF.majorStep == 0)
{
drawLabel = true;
length *= majorTickLengthFactor;
}
else if( tickF.midStep && i % tickF.midStep == 0 )
{
drawLabel = true;
length *= midTickLengthFactor;
}
aGal.DrawLine( tickPos, tickPos + tickLine.Resize( length ) );
if( drawLabel )
{
wxString label = DimensionLabel( "", tickSpace * i, g_UserUnit );
// FIXME: spaces choke OpenGL lp:1668455
label.erase( std::remove( label.begin(), label.end(), ' ' ), label.end() );
aGal.BitmapText( label, tickPos + labelOffset, labelAngle );
}
}
}
SHAPE_LINE_CHAIN PNS_MEANDER_SHAPE::circleQuad( VECTOR2D aP, VECTOR2D aDir, bool aSide )
{
SHAPE_LINE_CHAIN lc;
if( aDir.EuclideanNorm( ) == 0.0f )
{
lc.Append( aP );
return lc;
}
VECTOR2D dir_u( aDir );
VECTOR2D dir_v( aDir.Perpendicular( ) );
const int ArcSegments = Settings().m_cornerArcSegments;
for( int i = ArcSegments - 1; i >= 0; i-- )
{
VECTOR2D p;
double alpha = (double) i / (double) ( ArcSegments - 1 ) * M_PI / 2.0;
p = aP + dir_u * cos( alpha ) + dir_v * ( aSide ? -1.0 : 1.0 ) * ( 1.0 - sin( alpha ) );
lc.Append( ( int ) p.x, ( int ) p.y );
}
return lc;
}
SHAPE_LINE_CHAIN PNS_MEANDER_SHAPE::circleQuad( VECTOR2D aP, VECTOR2D aDir, bool aSide )
{
SHAPE_LINE_CHAIN lc;
if( aDir.EuclideanNorm( ) == 0.0f )
{
lc.Append( aP );
return lc;
}
VECTOR2D dir_u( aDir );
VECTOR2D dir_v( aDir.Perpendicular( ) );
const int ArcSegments = Settings().m_cornerArcSegments;
double radius = (double) aDir.EuclideanNorm();
double angleStep = M_PI / 2.0 / (double) ArcSegments;
double correction = 12.0 * radius * ( 1.0 - cos( angleStep / 2.0 ) );
if( !m_dual )
correction = 0.0;
else if( radius < m_meanCornerRadius )
correction = 0.0;
VECTOR2D p = aP;
lc.Append( ( int ) p.x, ( int ) p.y );
VECTOR2D dir_uu = dir_u.Resize( radius - correction );
VECTOR2D dir_vv = dir_v.Resize( radius - correction );
VECTOR2D shift = dir_u.Resize( correction );
for( int i = ArcSegments - 1; i >= 0; i-- )
{
double alpha = (double) i / (double) ( ArcSegments - 1 ) * M_PI / 2.0;
p = aP + shift + dir_uu * cos( alpha ) + dir_vv * ( aSide ? -1.0 : 1.0 ) * ( 1.0 - sin( alpha ) );
lc.Append( ( int ) p.x, ( int ) p.y );
}
p = aP + dir_u + dir_v * ( aSide ? -1.0 : 1.0 );
lc.Append( ( int ) p.x, ( int ) p.y );
return lc;
}
/**
* Draw simple ticks on the back of a line such that the line is
* divided into n parts.
*
* @param aGal the GAL to draw on
* @param aOrigin start of line to draw ticks on
* @param aLine line vector
* @param aTickLen length of ticks in IU
* @param aNumDivisions number of parts to divide the line into
*/
void drawBacksideTicks( KIGFX::GAL& aGal, const VECTOR2D& aOrigin,
const VECTOR2D& aLine, double aTickLen, int aNumDivisions )
{
const double backTickSpace = aLine.EuclideanNorm() / aNumDivisions;
const auto backTickVec = aLine.Rotate( M_PI_2 ).Resize( aTickLen );
for( int i = 0; i < aNumDivisions + 1; ++i )
{
const auto backTickPos = aOrigin + aLine.Resize( backTickSpace * i );
aGal.DrawLine( backTickPos, backTickPos + backTickVec );
}
}
void OPENGL_GAL::drawLineQuad( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint )
{
/* Helper drawing: ____--- v3 ^
* ____---- ... \ \
* ____---- ... \ end \
* v1 ____---- ... ____---- \ width
* ---- ...___---- \ \
* \ ___...-- \ v
* \ ____----... ____---- v2
* ---- ... ____----
* start \ ... ____----
* \... ____----
* ----
* v0
* dots mark triangles' hypotenuses
*/
VECTOR2D startEndVector = aEndPoint - aStartPoint;
double lineLength = startEndVector.EuclideanNorm();
if( lineLength <= 0.0 )
return;
double scale = 0.5 * lineWidth / lineLength;
// The perpendicular vector also needs transformations
glm::vec4 vector = currentManager->GetTransformation() *
glm::vec4( -startEndVector.y * scale, startEndVector.x * scale, 0.0, 0.0 );
// Line width is maintained by the vertex shader
currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v1
currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
currentManager->Vertex( aStartPoint.x, aStartPoint.y, layerDepth ); // v0
currentManager->Shader( SHADER_LINE, -vector.x, -vector.y, lineWidth );
currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v3
currentManager->Shader( SHADER_LINE, vector.x, vector.y, lineWidth );
currentManager->Vertex( aEndPoint.x, aEndPoint.y, layerDepth ); // v2
}
void OPENGL_GAL::DrawSegment( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint,
double aWidth )
{
VECTOR2D startEndVector = aEndPoint - aStartPoint;
double lineAngle = startEndVector.Angle();
if( isFillEnabled )
{
// Filled tracks
currentManager->Color( fillColor.r, fillColor.g, fillColor.b, fillColor.a );
SetLineWidth( aWidth );
drawLineQuad( aStartPoint, aEndPoint );
// Draw line caps
drawFilledSemiCircle( aStartPoint, aWidth / 2, lineAngle + M_PI / 2 );
drawFilledSemiCircle( aEndPoint, aWidth / 2, lineAngle - M_PI / 2 );
}
else
{
// Outlined tracks
double lineLength = startEndVector.EuclideanNorm();
currentManager->Color( strokeColor.r, strokeColor.g, strokeColor.b, strokeColor.a );
Save();
currentManager->Translate( aStartPoint.x, aStartPoint.y, 0.0 );
currentManager->Rotate( lineAngle, 0.0f, 0.0f, 1.0f );
drawLineQuad( VECTOR2D( 0.0, aWidth / 2.0 ),
VECTOR2D( lineLength, aWidth / 2.0 ) );
drawLineQuad( VECTOR2D( 0.0, -aWidth / 2.0 ),
VECTOR2D( lineLength, -aWidth / 2.0 ) );
// Draw line caps
drawStrokedSemiCircle( VECTOR2D( 0.0, 0.0 ), aWidth / 2, M_PI / 2 );
drawStrokedSemiCircle( VECTOR2D( lineLength, 0.0 ), aWidth / 2, -M_PI / 2 );
Restore();
}
}
static void drawCursorStrings( KIGFX::GAL& aGal, const VECTOR2D& aCursor,
const VECTOR2D& aRulerVec )
{
// draw the cursor labels
std::vector<wxString> cursorStrings;
cursorStrings.push_back( DimensionLabel( "r", aRulerVec.EuclideanNorm(), g_UserUnit ) );
double degs = RAD2DECIDEG( -aRulerVec.Angle() );
cursorStrings.push_back( DimensionLabel( "θ", degs, DEGREES ) );
for( auto& str: cursorStrings )
{
// FIXME: remove spaces that choke OpenGL lp:1668455
str.erase( std::remove( str.begin(), str.end(), ' ' ), str.end() );
}
auto temp = aRulerVec;
DrawTextNextToCursor( aGal, aCursor, -temp, cursorStrings );
}
void CAIRO_GAL::DrawSegment( const VECTOR2D& aStartPoint, const VECTOR2D& aEndPoint,
double aWidth )
{
if( isFillEnabled )
{
// Filled tracks mode
SetLineWidth( aWidth );
cairo_move_to( currentContext, (double) aStartPoint.x, (double) aStartPoint.y );
cairo_line_to( currentContext, (double) aEndPoint.x, (double) aEndPoint.y );
}
else
{
// Outline mode for tracks
VECTOR2D startEndVector = aEndPoint - aStartPoint;
double lineAngle = atan2( startEndVector.y, startEndVector.x );
double lineLength = startEndVector.EuclideanNorm();
cairo_save( currentContext );
cairo_translate( currentContext, aStartPoint.x, aStartPoint.y );
cairo_rotate( currentContext, lineAngle );
cairo_arc( currentContext, 0.0, 0.0, aWidth / 2.0, M_PI / 2.0, 3.0 * M_PI / 2.0 );
cairo_arc( currentContext, lineLength, 0.0, aWidth / 2.0, -M_PI / 2.0, M_PI / 2.0 );
cairo_move_to( currentContext, 0.0, aWidth / 2.0 );
cairo_line_to( currentContext, lineLength, aWidth / 2.0 );
cairo_move_to( currentContext, 0.0, -aWidth / 2.0 );
cairo_line_to( currentContext, lineLength, -aWidth / 2.0 );
cairo_restore( currentContext );
}
isElementAdded = true;
}
void PCB_PAINTER::draw( const TRACK* aTrack, int aLayer )
{
VECTOR2D start( aTrack->GetStart() );
VECTOR2D end( aTrack->GetEnd() );
int width = aTrack->GetWidth();
if( m_pcbSettings.m_netNamesOnTracks && IsNetnameLayer( aLayer ) )
{
// If there is a net name - display it on the track
if( aTrack->GetNetCode() > NETINFO_LIST::UNCONNECTED )
{
VECTOR2D line = ( end - start );
double length = line.EuclideanNorm();
// Check if the track is long enough to have a netname displayed
if( length < 10 * width )
return;
const wxString& netName = aTrack->GetShortNetname();
VECTOR2D textPosition = start + line / 2.0; // center of the track
double textOrientation = -atan( line.y / line.x );
double textSize = std::min( static_cast<double>( width ), length / netName.length() );
// Set a proper color for the label
const COLOR4D& color = m_pcbSettings.GetColor( aTrack, aTrack->GetLayer() );
COLOR4D labelColor = m_pcbSettings.GetColor( NULL, aLayer );
if( color.GetBrightness() > 0.5 )
m_gal->SetStrokeColor( labelColor.Inverted() );
else
m_gal->SetStrokeColor( labelColor );
m_gal->SetLineWidth( width / 10.0 );
m_gal->SetBold( false );
m_gal->SetItalic( false );
m_gal->SetMirrored( false );
m_gal->SetGlyphSize( VECTOR2D( textSize * 0.7, textSize * 0.7 ) );
m_gal->SetHorizontalJustify( GR_TEXT_HJUSTIFY_CENTER );
m_gal->SetVerticalJustify( GR_TEXT_VJUSTIFY_CENTER );
m_gal->StrokeText( netName, textPosition, textOrientation );
}
}
else if( IsCopperLayer( aLayer ) )
{
// Draw a regular track
const COLOR4D& color = m_pcbSettings.GetColor( aTrack, aLayer );
m_gal->SetStrokeColor( color );
m_gal->SetIsStroke( true );
if( m_pcbSettings.m_sketchMode[TRACKS_VISIBLE] )
{
// Outline mode
m_gal->SetLineWidth( m_pcbSettings.m_outlineWidth );
m_gal->SetIsFill( false );
}
else
{
// Filled mode
m_gal->SetFillColor( color );
m_gal->SetIsFill( true );
}
m_gal->DrawSegment( start, end, width );
}
}
void PCB_PAINTER::draw( const TRACK* aTrack, int aLayer )
{
VECTOR2D start( aTrack->GetStart() );
VECTOR2D end( aTrack->GetEnd() );
int width = aTrack->GetWidth();
if( m_pcbSettings.m_netNamesOnTracks && IsNetnameLayer( aLayer ) )
{
// If there is a net name - display it on the track
if( aTrack->GetNetCode() > NETINFO_LIST::UNCONNECTED )
{
VECTOR2D line = ( end - start );
double length = line.EuclideanNorm();
// Check if the track is long enough to have a netname displayed
if( length < 10 * width )
return;
const wxString& netName = aTrack->GetShortNetname();
VECTOR2D textPosition = start + line / 2.0; // center of the track
double textOrientation;
if( end.y == start.y ) // horizontal
textOrientation = 0;
else if( end.x == start.x ) // vertical
textOrientation = M_PI / 2;
else
textOrientation = -atan( line.y / line.x );
double textSize = width;
m_gal->SetIsStroke( true );
m_gal->SetIsFill( false );
m_gal->SetStrokeColor( m_pcbSettings.GetColor( NULL, aLayer ) );
m_gal->SetLineWidth( width / 10.0 );
m_gal->SetFontBold( false );
m_gal->SetFontItalic( false );
m_gal->SetTextMirrored( false );
m_gal->SetGlyphSize( VECTOR2D( textSize * 0.7, textSize * 0.7 ) );
m_gal->SetHorizontalJustify( GR_TEXT_HJUSTIFY_CENTER );
m_gal->SetVerticalJustify( GR_TEXT_VJUSTIFY_CENTER );
m_gal->BitmapText( netName, textPosition, textOrientation );
}
}
else if( IsCopperLayer( aLayer ) )
{
// Draw a regular track
const COLOR4D& color = m_pcbSettings.GetColor( aTrack, aLayer );
bool outline_mode = m_pcbSettings.m_sketchMode[LAYER_TRACKS];
m_gal->SetStrokeColor( color );
m_gal->SetFillColor( color );
m_gal->SetIsStroke( outline_mode );
m_gal->SetIsFill( not outline_mode );
m_gal->SetLineWidth( m_pcbSettings.m_outlineWidth );
m_gal->DrawSegment( start, end, width );
// Clearance lines
constexpr int clearanceFlags = PCB_RENDER_SETTINGS::CL_EXISTING | PCB_RENDER_SETTINGS::CL_TRACKS;
if( ( m_pcbSettings.m_clearance & clearanceFlags ) == clearanceFlags )
{
m_gal->SetLineWidth( m_pcbSettings.m_outlineWidth );
m_gal->SetIsFill( false );
m_gal->SetIsStroke( true );
m_gal->SetStrokeColor( color );
m_gal->DrawSegment( start, end, width + aTrack->GetClearance() * 2 );
}
}
}
