realAscot/kicad-source
1
0
Fork 0
mirror of https://gitlab.com/kicad/code/kicad.git synced 2025-09-14 02:03:12 +02:00
Code Issues Packages Projects Releases Wiki Activity
kicad-source/common/gr_basic.cpp
Seth Hillbrand c4d853c1e8 SHAPE_LINE_CHAIN: Remove element access 
This is the first step to allowing non-segments in the line chain.
External routines cannot be allowed to change the line chain without
going through the internal routines.  To accomplish this, we remove the
Vertex() and Point() access routines and only leave the const versions.
Transformations are given for both points as well as the chain itself.
2019-12-12 13:54:48 +00:00

1065 lines
28 KiB
C++
Raw Blame History

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2011 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2018 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/********************************/
/* Low level graphics routines */
/********************************/
#include <fctsys.h>
#include <gr_basic.h>
#include <common.h>
#include <trigo.h>
#include <macros.h>
#include <base_struct.h>
#include <base_screen.h>
#include <bezier_curves.h>
#include <math_for_graphics.h>
#include <wx/graphics.h>
#include <wx/tokenzr.h>
#include <geometry/geometry_utils.h>
static const bool FILLED = true;
static const bool NOT_FILLED = false;
/* Important Note:
* These drawing functions clip draw item before send these items to wxDC draw
* functions. For guy who asks why i did it, see a sample of problems encountered
* when pixels
* coordinates overflow 16 bits values:
* http://trac.wxwidgets.org/ticket/10446
* Problems can be found under Windows **and** Linux (mainly when drawing arcs)
* (mainly at low zoom values (2, 1 or 0.5), in Pcbnew)
* some of these problems could be now fixed in recent distributions.
*
* Currently (feb 2009) there are overflow problems when drawing solid (filled)
* polygons under linux without clipping
*
* So before removing clipping functions, be aware these bug (they are not in
* KiCad or wxWidgets) are fixed by testing how are drawn complex lines arcs
* and solid polygons under Windows and Linux and remember users can have old
* versions with bugs
*/
/* Definitions for enabling and disabling debugging features in gr_basic.cpp.
* Please remember to set these back to 0 before making LAUNCHPAD commits.
*/
#define DEBUG_DUMP_CLIP_ERROR_COORDS 0 // Set to 1 to dump clip algorithm errors.
#define DEBUG_DUMP_CLIP_COORDS 0 // Set to 1 to dump clipped coordinates.
// For draw mode = XOR GR_XOR or GR_NXOR by background color
GR_DRAWMODE g_XorMode = GR_NXOR;
static void ClipAndDrawPoly( EDA_RECT* ClipBox, wxDC* DC, const wxPoint* Points, int n );
/* These functions are used by corresponding functions
* ( GRSCircle is called by GRCircle for instance) after mapping coordinates
* from user units to screen units(pixels coordinates)
*/
static void GRSRect( EDA_RECT* aClipBox, wxDC* aDC, int x1, int y1,
int x2, int y2, int aWidth, COLOR4D aColor,
wxPenStyle aStyle = wxPENSTYLE_SOLID );
/**/
static int GRLastMoveToX, GRLastMoveToY;
static bool s_ForceBlackPen; /* if true: draws in black instead of
* color for printing. */
static int xcliplo = 0,
ycliplo = 0,
xcliphi = 2000,
ycliphi = 2000;
static COLOR4D s_DC_lastcolor( 0, 0, 0, 0 );
static COLOR4D s_DC_lastbrushcolor( 0, 0, 0, 0 );
static bool s_DC_lastbrushfill = false;
static wxDC* s_DC_lastDC = NULL;
static void WinClipAndDrawLine( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2, int width )
{
GRLastMoveToX = x2;
GRLastMoveToY = y2;
if( ClipBox )
{
EDA_RECT clipbox(*ClipBox);
clipbox.Inflate(width/2);
if( ClipLine( &clipbox, x1, y1, x2, y2 ) )
return;
}
DC->DrawLine( x1, y1, x2, y2 );
}
/* Forcing a reset of the current pen.
* Must be called after changing the graphical device before any trace.
*/
void GRResetPenAndBrush( wxDC* DC )
{
GRSetBrush( DC, BLACK ); // Force no fill
s_DC_lastbrushcolor = COLOR4D::UNSPECIFIED;
s_DC_lastcolor = COLOR4D::UNSPECIFIED;
s_DC_lastDC = NULL;
}
/**
* Function GRSetColorPen
* sets a pen style, width, color, and alpha into the given device context.
*/
void GRSetColorPen( wxDC* DC, COLOR4D Color, int width, wxPenStyle style )
{
wxDash dots[2] = { 1, 3 };
// Under OSX and while printing when wxPen is set to 0, renderer follows the request drawing
// nothing & in the bitmap world the minimum is enough to light a pixel, in vectorial one not
if( width <= 1 )
width = DC->DeviceToLogicalXRel( 1 );
if( s_ForceBlackPen )
Color = COLOR4D::BLACK;
const wxPen& curr_pen = DC->GetPen();
if( !curr_pen.IsOk() || curr_pen.GetColour() != Color.ToColour()
|| curr_pen.GetWidth() != width
|| curr_pen.GetStyle() != style )
{
wxPen pen;
pen.SetColour( Color.ToColour() );
if( style == wxPENSTYLE_DOT )
{
style = wxPENSTYLE_USER_DASH;
pen.SetDashes( 2, dots );
}
pen.SetWidth( width );
pen.SetStyle( style );
DC->SetPen( pen );
}
else
// Should be not needed, but on Linux, in printing process
// the curr pen settings needs to be sometimes re-initialized
// Clearly, this is due to a bug, related to SetBrush(),
// but we have to live with it, at least on wxWidgets 3.0
DC->SetPen( curr_pen );
}
void GRSetBrush( wxDC* DC, COLOR4D Color, bool fill )
{
if( s_ForceBlackPen )
Color = COLOR4D::BLACK;
if( s_DC_lastbrushcolor != Color
|| s_DC_lastbrushfill != fill
|| s_DC_lastDC != DC )
{
wxBrush brush;
brush.SetColour( Color.ToColour() );
if( fill )
brush.SetStyle( wxBRUSHSTYLE_SOLID );
else
brush.SetStyle( wxBRUSHSTYLE_TRANSPARENT );
DC->SetBrush( brush );
s_DC_lastbrushcolor = Color;
s_DC_lastbrushfill = fill;
s_DC_lastDC = DC;
}
}
/**
* Function GRForceBlackPen
* @param flagforce True to force a black pen whenever the asked color
*/
void GRForceBlackPen( bool flagforce )
{
s_ForceBlackPen = flagforce;
}
/**
* Function GetGRForceBlackPenState
* @return s_ForceBlackPen (True if a black pen was forced)
*/
bool GetGRForceBlackPenState( void )
{
return s_ForceBlackPen;
}
void GRPutPixel( EDA_RECT* ClipBox, wxDC* DC, int x, int y, COLOR4D Color )
{
if( ClipBox && !ClipBox->Contains( x, y ) )
return;
GRSetColorPen( DC, Color );
DC->DrawPoint( x, y );
}
/*
* Draw a line, in object space.
*/
void GRLine( EDA_RECT* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
COLOR4D Color,
wxPenStyle aStyle)
{
GRSetColorPen( DC, Color, width, aStyle );
WinClipAndDrawLine( ClipBox, DC, x1, y1, x2, y2, width );
GRLastMoveToX = x2;
GRLastMoveToY = y2;
}
void GRLine( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd, int aWidth, COLOR4D aColor, wxPenStyle aStyle )
{
GRLine( aClipBox, aDC, aStart.x, aStart.y, aEnd.x, aEnd.y, aWidth, aColor, aStyle );
}
/*
* Move to a new position, in object space.
*/
void GRMoveTo( int x, int y )
{
GRLastMoveToX = x;
GRLastMoveToY = y;
}
/*
* Draw line to a new position, in object space.
*/
void GRLineTo( EDA_RECT* ClipBox, wxDC* DC, int x, int y, int width, COLOR4D Color )
{
GRLine( ClipBox, DC, GRLastMoveToX, GRLastMoveToY, x, y, width, Color );
}
/**
* Function GRLineArray
* draws an array of lines (not a polygon).
* @param aClipBox = the clip box
* @param aDC = the device context into which drawing should occur.
* @param aLines = a list of pair of coordinate in user space: a pair for each line.
* @param aWidth = the width of each line.
* @param aColor = color to draw the lines
* @see COLOR4D
*/
void GRLineArray( EDA_RECT* aClipBox, wxDC* aDC, std::vector<wxPoint>& aLines,
int aWidth, COLOR4D aColor )
{
if( aLines.empty() )
return;
GRSetColorPen( aDC, aColor, aWidth );
if( aClipBox )
aClipBox->Inflate( aWidth / 2 );
for( unsigned i = 0; i < aLines.size(); i += 2 )
{
int x1 = aLines[i].x;
int y1 = aLines[i].y;
int x2 = aLines[i + 1].x;
int y2 = aLines[i + 1].y;
if( ( aClipBox == NULL ) || !ClipLine( aClipBox, x1, y1, x2, y2 ) )
aDC->DrawLine( x1, y1, x2, y2 );
}
GRMoveTo( aLines[aLines.size() - 1].x, aLines[aLines.size() - 1].y );
if( aClipBox )
aClipBox->Inflate(-aWidth/2);
}
// Draw the outline of a thick segment wih rounded ends
void GRCSegm( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int aPenSize, COLOR4D Color )
{
GRLastMoveToX = x2;
GRLastMoveToY = y2;
if( ClipBox )
{
EDA_RECT clipbox(*ClipBox);
clipbox.Inflate(width/2);
if( ClipLine( &clipbox, x1, y1, x2, y2 ) )
return;
}
if( width <= 2 ) /* single line or 2 pixels */
{
GRSetColorPen( DC, Color, width );
DC->DrawLine( x1, y1, x2, y2 );
return;
}
GRSetBrush( DC, Color, NOT_FILLED );
GRSetColorPen( DC, Color, aPenSize );
int radius = (width + 1) >> 1;
int dx = x2 - x1;
int dy = y2 - y1;
double angle = -ArcTangente( dy, dx );
wxPoint start;
wxPoint end;
wxPoint org( x1, y1);
int len = (int) hypot( dx, dy );
// We know if the DC is mirrored, to draw arcs
int slx = DC->DeviceToLogicalX( 1 ) - DC->DeviceToLogicalX( 0 );
int sly = DC->DeviceToLogicalY( 1 ) - DC->DeviceToLogicalY( 0 );
bool mirrored = (slx > 0 && sly < 0) || (slx < 0 && sly > 0);
// first edge
start.x = 0;
start.y = radius;
end.x = len;
end.y = radius;
RotatePoint( &start, angle);
RotatePoint( &end, angle);
start += org;
end += org;
DC->DrawLine( start, end );
// first rounded end
end.x = 0;
end.y = -radius;
RotatePoint( &end, angle);
end += org;
if( !mirrored )
DC->DrawArc( end, start, org );
else
DC->DrawArc( start, end, org );
// second edge
start.x = len;
start.y = -radius;
RotatePoint( &start, angle);
start += org;
DC->DrawLine( start, end );
// second rounded end
end.x = len;
end.y = radius;
RotatePoint( &end, angle);
end += org;
if( !mirrored )
DC->DrawArc( end.x, end.y, start.x, start.y, x2, y2 );
else
DC->DrawArc( start.x, start.y, end.x, end.y, x2, y2 );
}
void GRCSegm( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, COLOR4D Color )
{
GRCSegm( ClipBox, DC, x1, y1, x2, y2, width, 0, Color );
}
void GRCSegm( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
int aWidth, COLOR4D aColor )
{
GRCSegm( aClipBox, aDC, aStart.x, aStart.y, aEnd.x, aEnd.y, aWidth, 0, aColor );
}
/*
* Draw segment (full) with rounded ends in object space (real coords.).
*/
void GRFillCSegm( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, COLOR4D Color )
{
GRSetColorPen( DC, Color, width );
WinClipAndDrawLine( ClipBox, DC, x1, y1, x2, y2, width );
}
void GRFilledSegment( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
int aWidth, COLOR4D aColor )
{
GRSetColorPen( aDC, aColor, aWidth );
WinClipAndDrawLine( aClipBox, aDC, aStart.x, aStart.y, aEnd.x, aEnd.y, aWidth );
}
static bool IsGRSPolyDrawable( EDA_RECT* ClipBox, int n, const wxPoint* Points, )
{
if( !ClipBox )
return true;
if( n <= 0 )
return false;
int Xmin, Xmax, Ymin, Ymax;
Xmin = Xmax = Points[0].x;
Ymin = Ymax = Points[0].y;
for( int ii = 1; ii < n; ii++ ) // calculate rectangle
{
Xmin = std::min( Xmin, Points[ii].x );
Xmax = std::max( Xmax, Points[ii].x );
Ymin = std::min( Ymin, Points[ii].y );
Ymax = std::max( Ymax, Points[ii].y );
}
xcliplo = ClipBox->GetX();
ycliplo = ClipBox->GetY();
xcliphi = ClipBox->GetRight();
ycliphi = ClipBox->GetBottom();
if( Xmax < xcliplo )
return false;
if( Xmin > xcliphi )
return false;
if( Ymax < ycliplo )
return false;
if( Ymin > ycliphi )
return false;
return true;
}
/*
* Draw a new polyline and fill it if Fill, in screen space.
*/
static void GRSPoly( EDA_RECT* ClipBox, wxDC* DC, int n, const wxPoint* Points, bool Fill,
int width, COLOR4D Color, COLOR4D BgColor )
{
if( !IsGRSPolyDrawable( ClipBox, n, Points ) )
return;
if( Fill && ( n > 2 ) )
{
GRSetBrush( DC, BgColor, FILLED );
GRSetColorPen( DC, Color, width );
/* clip before send the filled polygon to wxDC, because under linux
* (GTK?) polygons having large coordinates are incorrectly drawn
* (integer overflow in coordinates, I am guessing)
*/
ClipAndDrawPoly( ClipBox, DC, Points, n );
}
else
{
GRMoveTo( Points[0].x, Points[0].y );
for( int i = 1; i < n; ++i )
{
GRLineTo( ClipBox, DC, Points[i].x, Points[i].y, width, Color );
}
}
}
/*
* Draw a new closed polyline and fill it if Fill, in screen space.
*/
static void GRSClosedPoly( EDA_RECT* aClipBox, wxDC* aDC, int aPointCount, const wxPoint* aPoints,
bool aFill, int aWidth, COLOR4D aColor, COLOR4D aBgColor )
{
if( !IsGRSPolyDrawable( aClipBox, aPointCount, aPoints ) )
return;
if( aFill && ( aPointCount > 2 ) )
{
GRLastMoveToX = aPoints[aPointCount - 1].x;
GRLastMoveToY = aPoints[aPointCount - 1].y;
GRSetBrush( aDC, aBgColor, FILLED );
GRSetColorPen( aDC, aColor, aWidth );
ClipAndDrawPoly( aClipBox, aDC, aPoints, aPointCount );
}
else
{
GRMoveTo( aPoints[0].x, aPoints[0].y );
for( int i = 1; i < aPointCount; ++i )
{
GRLineTo( aClipBox, aDC, aPoints[i].x, aPoints[i].y, aWidth, aColor );
}
int lastpt = aPointCount - 1;
// Close the polygon
if( aPoints[lastpt] != aPoints[0] )
{
GRLineTo( aClipBox, aDC, aPoints[0].x, aPoints[0].y, aWidth, aColor );
}
}
}
/*
* Draw a new polyline and fill it if Fill, in drawing space.
*/
void GRPoly( EDA_RECT* ClipBox, wxDC* DC, int n, const wxPoint* Points, bool Fill, int width,
COLOR4D Color, COLOR4D BgColor )
{
GRSPoly( ClipBox, DC, n, Points, Fill, width, Color, BgColor );
}
/*
* Draw a closed polyline and fill it if Fill, in object space.
*/
void GRClosedPoly( EDA_RECT* ClipBox, wxDC* DC, int n, const wxPoint* Points, bool Fill,
COLOR4D Color, COLOR4D BgColor )
{
GRClosedPoly( ClipBox, DC, n, Points, Fill, 0, Color, BgColor );
}
void GRClosedPoly( EDA_RECT* ClipBox, wxDC* DC, int n, const wxPoint* Points, bool Fill, int width,
COLOR4D Color, COLOR4D BgColor )
{
GRSClosedPoly( ClipBox, DC, n, Points, Fill, width, Color, BgColor );
}
static bool clipCircle( EDA_RECT* aClipBox, int xc, int yc, int r, int aWidth )
{
// Clip circles that are outside the ClipBox.
if( aClipBox )
{
int x0, y0, xm, ym;
x0 = aClipBox->GetX();
y0 = aClipBox->GetY();
xm = aClipBox->GetRight();
ym = aClipBox->GetBottom();
r += aWidth;
if( xc < ( x0 - r ) )
return true;
if( yc < ( y0 - r ) )
return true;
if( xc > ( r + xm ) )
return true;
if( yc > ( r + ym ) )
return true;
}
return false;
}
void GRCircle( EDA_RECT* ClipBox, wxDC* DC, int xc, int yc, int r, int width, COLOR4D Color )
{
if( clipCircle( ClipBox, xc, yc, r, width ) || r <= 0 )
return;
GRSetBrush( DC, Color, NOT_FILLED );
GRSetColorPen( DC, Color, width );
DC->DrawEllipse( xc - r, yc - r, r + r, r + r );
}
void GRCircle( EDA_RECT* ClipBox, wxDC* DC, int x, int y, int r, COLOR4D Color )
{
GRCircle( ClipBox, DC, x, y, r, 0, Color );
}
void GRCircle( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aPos, int aRadius, int aWidth, COLOR4D aColor )
{
GRCircle( aClipBox, aDC, aPos.x, aPos.y, aRadius, aWidth, aColor );
}
void GRFilledCircle( EDA_RECT* ClipBox, wxDC* DC, int x, int y, int r,
int width, COLOR4D Color, COLOR4D BgColor )
{
if( clipCircle( ClipBox, x, y, r, width ) || r <= 0 )
return;
GRSetBrush( DC, BgColor, FILLED );
GRSetColorPen( DC, Color, width );
DC->DrawEllipse( x - r, y - r, r + r, r + r );
}
void GRFilledCircle( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aPos, int aRadius, COLOR4D aColor )
{
GRFilledCircle( aClipBox, aDC, aPos.x, aPos.y, aRadius, 0, aColor, aColor );
}
/*
* Draw an arc in user space.
*/
void GRArc1( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int xc, int yc, COLOR4D Color )
{
GRArc1( ClipBox, DC, x1, y1, x2, y2, xc, yc, 0, Color );
}
/*
* Draw an arc, width = width in user space.
*/
void GRArc1( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int xc, int yc, int width, COLOR4D Color )
{
/* Clip arcs off screen. */
if( ClipBox )
{
int x0, y0, xm, ym, r;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
r = KiROUND( Distance( x1, y1, xc, yc ) );
if( xc < ( x0 - r ) )
return;
if( yc < ( y0 - r ) )
return;
if( xc > ( r + xm ) )
return;
if( yc > ( r + ym ) )
return;
}
GRSetBrush( DC, Color );
GRSetColorPen( DC, Color, width );
DC->DrawArc( x1, y1, x2, y2, xc, yc );
}
void GRArc1( EDA_RECT* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
wxPoint aCenter, int aWidth, COLOR4D aColor )
{
GRArc1( aClipBox, aDC, aStart.x, aStart.y, aEnd.x, aEnd.y, aCenter.x, aCenter.y,
aWidth, aColor );
}
/*
* Draw a filled arc in drawing space.
*/
void GRFilledArc( EDA_RECT* ClipBox,
wxDC* DC,
int x,
int y,
double StAngle,
double EndAngle,
int r,
int width,
COLOR4D Color,
COLOR4D BgColor )
{
int x1, y1, x2, y2;
/* Clip arcs off screen */
if( ClipBox )
{
int x0, y0, xm, ym;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
if( x < ( x0 - r - 1 ) )
return;
if( y < ( y0 - r - 1 ) )
return;
if( x > ( r + xm + 1 ) )
return;
if( y > ( r + ym + 1 ) )
return;
}
x1 = r;
y1 = 0;
RotatePoint( &x1, &y1, EndAngle );
x2 = r;
y2 = 0;
RotatePoint( &x2, &y2, StAngle );
GRSetBrush( DC, BgColor, FILLED );
GRSetColorPen( DC, Color, width );
DC->DrawArc( x + x1, y - y1, x + x2, y - y2, x, y );
}
void GRFilledArc( EDA_RECT* ClipBox, wxDC* DC, int x, int y,
double StAngle, double EndAngle, int r,
COLOR4D Color, COLOR4D BgColor )
{
GRFilledArc( ClipBox, DC, x, y, StAngle, EndAngle, r, 0, Color, BgColor );
}
/*
* Draw an arc in drawing space.
*/
void GRArc( EDA_RECT* ClipBox, wxDC* DC, int xc, int yc, double StAngle,
double EndAngle, int r, COLOR4D Color )
{
int x1, y1, x2, y2;
/* Clip arcs off screen */
if( ClipBox )
{
int radius = r + 1;
int x0, y0, xm, ym, x, y;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
x = xc;
y = yc;
if( x < ( x0 - radius ) )
return;
if( y < ( y0 - radius ) )
return;
if( x > ( xm + radius ) )
return;
if( y > ( ym + radius ) )
return;
}
x1 = r;
y1 = 0;
RotatePoint( &x1, &y1, EndAngle );
x2 = r;
y2 = 0;
RotatePoint( &x2, &y2, StAngle );
GRSetBrush( DC, Color, NOT_FILLED );
GRSetColorPen( DC, Color );
DC->DrawArc( xc + x1, yc - y1, xc + x2, yc - y2, xc, yc );
}
/*
* Draw an arc with width = width in drawing space.
*/
void GRArc( EDA_RECT* ClipBox,
wxDC* DC,
int x,
int y,
double StAngle,
double EndAngle,
int r,
int width,
COLOR4D Color )
{
int x1, y1, x2, y2;
/* Clip arcs off screen. */
if( ClipBox )
{
int x0, y0, xm, ym;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
if( x < ( x0 - r - width ) )
return;
if( y < ( y0 - r - width ) )
return;
if( x > ( r + xm + width ) )
return;
if( y > ( r + ym + width ) )
return;
}
x1 = r;
y1 = 0;
RotatePoint( &x1, &y1, EndAngle );
x2 = r;
y2 = 0;
RotatePoint( &x2, &y2, StAngle );
GRSetBrush( DC, Color );
GRSetColorPen( DC, Color, width );
DC->DrawArc( x + x1, y - y1, x + x2, y - y2, x, y );
}
/*
* Draw a rectangle in drawing space.
*/
void GRRect( EDA_RECT* aClipBox, wxDC* aDC, int x1, int y1, int x2, int y2, COLOR4D aColor )
{
GRSRect( aClipBox, aDC, x1, y1, x2, y2, 0, aColor );
}
void GRRectPs( EDA_RECT* aClipBox, wxDC* aDC, const EDA_RECT& aRect, COLOR4D aColor, wxPenStyle aStyle )
{
int x1 = aRect.GetX();
int y1 = aRect.GetY();
int x2 = aRect.GetRight();
int y2 = aRect.GetBottom();
GRSRect( aClipBox, aDC, x1, y1, x2, y2, 0, aColor, aStyle );
}
/*
* Draw a rectangle (thick lines) in drawing space.
*/
void GRRect( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2, int width, COLOR4D Color )
{
GRSRect( ClipBox, DC, x1, y1, x2, y2, width, Color );
}
void GRRect( EDA_RECT* aClipBox, wxDC* aDC, const EDA_RECT& aRect, int aWidth, COLOR4D aColor )
{
int x1 = aRect.GetX();
int y1 = aRect.GetY();
int x2 = aRect.GetRight();
int y2 = aRect.GetBottom();
GRSRect( aClipBox, aDC, x1, y1, x2, y2, aWidth, aColor );
}
/*
* Draw a rectangle (filled with AreaColor) in drawing space.
*/
void GRFilledRect( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
COLOR4D Color, COLOR4D BgColor )
{
GRSFilledRect( ClipBox, DC, x1, y1, x2, y2, 0, Color, BgColor );
}
/*
* Draw a rectangle (filled with AreaColor) in drawing space.
*/
void GRFilledRect( EDA_RECT* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, COLOR4D Color, COLOR4D BgColor )
{
GRSFilledRect( ClipBox, DC, x1, y1, x2, y2, width, Color, BgColor );
}
/*
* Draw a rectangle in screen space.
*/
void GRSRect( EDA_RECT* aClipBox, wxDC* aDC, int x1, int y1, int x2, int y2,
int aWidth, COLOR4D aColor, wxPenStyle aStyle )
{
wxPoint points[5];
points[0] = wxPoint(x1, y1);
points[1] = wxPoint(x1, y2);
points[2] = wxPoint(x2, y2);
points[3] = wxPoint(x2, y1);
points[4] = points[0];
GRSClosedPoly( aClipBox, aDC, 5, points, NOT_FILLED, aWidth,
aColor, aColor );
}
void GRSFilledRect( EDA_RECT* aClipBox, wxDC* aDC, int x1, int y1, int x2, int y2,
int aWidth, COLOR4D aColor, COLOR4D aBgColor )
{
wxPoint points[5];
points[0] = wxPoint(x1, y1);
points[1] = wxPoint(x1, y2);
points[2] = wxPoint(x2, y2);
points[3] = wxPoint(x2, y1);
points[4] = points[0];
GRSetBrush( aDC, aBgColor, FILLED );
GRSetColorPen( aDC, aBgColor, aWidth );
if( aClipBox && (aWidth > 0) )
{
EDA_RECT clipbox(*aClipBox);
clipbox.Inflate(aWidth);
ClipAndDrawPoly(&clipbox, aDC, points, 5); // polygon approach is more accurate
}
else
ClipAndDrawPoly(aClipBox, aDC, points, 5 );
}
/**
* Function ClipAndDrawPoly
* Used to clip a polygon and draw it as Filled Polygon
* uses the Sutherland and Hodgman algo to clip the given poly against a
* rectangle. This rectangle is the drawing area this is useful under
* Linux (2009) because filled polygons are incorrectly drawn if they have
* too large coordinates (seems due to integer overflows in calculations)
* Could be removed in some years, if become unnecessary.
*/
/* Note: aClipBox == NULL is legal, so if aClipBox == NULL,
* the polygon is drawn, but not clipped
*/
#include <SutherlandHodgmanClipPoly.h>
void ClipAndDrawPoly( EDA_RECT* aClipBox, wxDC* aDC, const wxPoint* Points, int n )
{
if( aClipBox == NULL )
{
aDC->DrawPolygon( n, aPoints );
return;
}
// A clip box exists: clip and draw the polygon.
static std::vector<wxPoint> clippedPolygon;
static pointVector inputPolygon, outputPolygon;
inputPolygon.clear();
outputPolygon.clear();
clippedPolygon.clear();
for( int ii = 0; ii < n; ii++ )
inputPolygon.push_back( PointF( (REAL) aPoints[ii].x, (REAL) aPoints[ii].y ) );
RectF window( (REAL) aClipBox->GetX(), (REAL) aClipBox->GetY(),
(REAL) aClipBox->GetWidth(), (REAL) aClipBox->GetHeight() );
SutherlandHodgman sh( window );
sh.Clip( inputPolygon, outputPolygon );
for( cpointIterator cit = outputPolygon.begin(); cit != outputPolygon.end(); ++cit )
{
clippedPolygon.emplace_back( KiROUND( cit->X ), KiROUND( cit->Y ) );
}
if( clippedPolygon.size() )
aDC->DrawPolygon( clippedPolygon.size(), &clippedPolygon[0] );
}
void GRBezier( EDA_RECT* aClipBox, wxDC* aDC,
std::vector<wxPoint>& aPoint,
int aWidth, COLOR4D aColor )
{
std::vector<wxPoint> output;
BEZIER_POLY converter( aPoint );
converter.GetPoly( output, aWidth );
GRPoly( aClipBox, aDC, output.size(), &output[0], false, aWidth, aColor, aColor );
}
void GRDrawAnchor( EDA_RECT *aClipBox, wxDC *aDC, int x, int y,
int aSize, COLOR4D aColor )
{
int anchor_size = aDC->DeviceToLogicalXRel( aSize );
GRLine( aClipBox, aDC,
x - anchor_size, y,
x + anchor_size, y, 0, aColor );
GRLine( aClipBox, aDC,
x, y - anchor_size,
x, y + anchor_size, 0, aColor );
}
void GRDrawWrappedText( wxDC& aDC, wxString const& aText )
{
wxStringTokenizer tokenizer( aText, " " );
wxSize const dc_size = aDC.GetSize();
wxSize const margin = aDC.GetTextExtent( " " );
std::vector<wxString> lines;
wxString line_accumulator;
int total_height = 0;
while( tokenizer.HasMoreTokens() )
{
wxString word = tokenizer.GetNextToken();
wxSize linesize = aDC.GetTextExtent( line_accumulator + " " + word );
if( linesize.x >= dc_size.x - margin.x && !line_accumulator.IsEmpty() )
{
lines.push_back( line_accumulator );
line_accumulator = word;
}
else
{
line_accumulator += " ";
line_accumulator += word;
}
}
if( !line_accumulator.IsEmpty() )
{
lines.push_back( line_accumulator );
}
for( auto const& line: lines )
{
wxSize linesize = aDC.GetTextExtent( line );
total_height += linesize.y;
}
int top = ( dc_size.y - total_height ) / 2;
int pos = top;
for( auto const& line: lines )
{
wxSize linesize = aDC.GetTextExtent( line );
aDC.DrawText( line, ( dc_size.x - linesize.x ) / 2, pos );
pos += linesize.y;
}
}
Reference in New Issue View Git Blame Copy Permalink