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kicad/common/gr_basic.cpp

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/********************************/
/* 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 "class_base_screen.h"
#include "bezier_curves.h"
#include "math_for_graphics.h"
#include <wx/graphics.h>
#ifndef FILLED
#define FILLED 1
#endif
/* 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
int g_XorMode = GR_NXOR;
// Background color of the design frame
int g_DrawBgColor = WHITE;
#define USE_CLIP_FILLED_POLYGONS
#ifdef USE_CLIP_FILLED_POLYGONS
static void ClipAndDrawFilledPoly( EDA_Rect * ClipBox, wxDC * DC, wxPoint Points[], int n );
#endif
/* 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 GRSCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r, int width, int Color );
static void GRSFilledCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r,
int width, int Color, int BgColor );
static void GRSMixedLine( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int Color );
static void GRSDashedLineTo( EDA_Rect* ClipBox, wxDC* DC, int x2, int y2, int width, int Color );
static void GRSDashedLine( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2,
int y2, int width, int Color );
static void GRSLine( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int Color );
static void GRSMoveTo( int x, int y );
static void GRSArc1( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int xc, int yc, int width, int Color );
static void GRSArc( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int StAngle,
int EndAngle, int r, int width, int Color );
static void GRSFilledArc( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int StAngle,
int EndAngle, int r, int width, int Color, int BgColor );
static void GRSCSegm( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int aPenSize, int Color );
static void GRSLineArray( EDA_Rect * aClipBox, wxDC * aDC, std::vector<wxPoint>& aLines,
int aWidth, int aColor );
/**/
extern BASE_SCREEN* ActiveScreen;
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 int s_DC_lastcolor = -1;
static int s_DC_lastwidth = -1;
static int s_DC_lastpenstyle = -1;
static int s_DC_lastbrushcolor = -1;
static int s_DC_lastbrushfill = -1;
static wxDC* s_DC_lastDC = NULL;
/* Local functions: */
static void GRSRect( EDA_Rect* aClipBox, wxDC* aDC, int x1, int y1,
int x2, int y2, int aWidth, int aColor,
wxPenStyle aStyle = wxPENSTYLE_SOLID );
/*
* Macro clipping the trace of a line:
* Line (x1, y1 x2, y2) is clipped to remain within
* (Xcliplo, ycliplo xcliphi, ycliphi) (global variables, local to this file)
* This is necessary because under WIN95 coord trace
* (Although an int has 32 bits) are truncated to 16 bits (stupid)
*/
static inline int USCALE( unsigned int arg, unsigned int num, unsigned int den )
{
#ifndef USE_WX_ZOOM
int ii;
ii = (int) ( ( (float) arg * num ) / den );
return ii;
#else
return arg;
#endif
}
static int inline ZoomValue( int val )
{
return ActiveScreen->Scale( val );
}
/****************************************/
/* External reference for the mappings. */
/****************************************/
int GRMapX( int x )
{
#ifndef USE_WX_ZOOM
int coord = x - ActiveScreen->m_DrawOrg.x;
coord = ZoomValue( coord );
coord -= ActiveScreen->m_StartVisu.x;
return coord;
#else
return x;
#endif
}
int GRMapY( int y )
{
#ifndef USE_WX_ZOOM
int coord = y - ActiveScreen->m_DrawOrg.y;
coord = ZoomValue( coord );
coord -= ActiveScreen->m_StartVisu.y;
return coord;
#else
return y;
#endif
}
#define WHEN_OUTSIDE return true;
#define WHEN_INSIDE
#if defined( USE_WX_ZOOM )
// currently only used if USE_WX_ZOOM is defined.
/**
* Test if any part of a line falls within the bounds of a rectangle.
*
* Please note that this is only accurate for lines that are one pixel wide.
*
* @param aRect - The rectangle to test.
* @param x1 - X coordinate of one end of a line.
* @param y1 - Y coordinate of one end of a line.
* @param x2 - X coordinate of the other end of a line.
* @param y2 - Y coordinate of the other end of a line.
*
* @return - False if any part of the line lies within the rectangle.
*/
static bool clipLine( EDA_Rect* aClipBox, int& x1, int& y1, int& x2, int& y2 )
{
if( aClipBox->Inside( x1, y1 ) && aClipBox->Inside( x2, y2 ) )
return false;
wxRect rect = *aClipBox;
int minX = rect.GetLeft();
int maxX = rect.GetRight();
int minY = rect.GetTop();
int maxY = rect.GetBottom();
int clippedX, clippedY;
#if DEBUG_DUMP_CLIP_COORDS
int tmpX1, tmpY1, tmpX2, tmpY2;
tmpX1 = x1;
tmpY1 = y1;
tmpX2 = x2;
tmpY2 = y2;
#endif
if( aClipBox->Inside( x1, y1 ) )
{
if( x1 == x2 ) /* Vertical line, clip Y. */
{
if( y2 < minY )
{
y2 = minY;
return false;
}
if( y2 > maxY )
{
y2 = maxY;
return false;
}
}
else if( y1 == y2 ) /* Horizontal line, clip X. */
{
if( x2 < minX )
{
x2 = minX;
return false;
}
if( x2 > maxX )
{
x2 = maxX;
return false;
}
}
/* If we're here, it's a diagonal line. */
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, minX, maxY,
&clippedX, &clippedY ) /* Left */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, maxX, minY,
&clippedX, &clippedY ) /* Top */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, maxX, minY, maxX, maxY,
&clippedX, &clippedY ) /* Right */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, maxY, maxX, maxY,
&clippedX, &clippedY ) ) /* Bottom */
{
if( x2 != clippedX )
x2 = clippedX;
if( y2 != clippedY )
y2 = clippedY;
return false;
}
/* If we're here, something has gone terribly wrong. */
#if DEBUG_DUMP_CLIP_ERROR_COORDS
wxLogDebug( wxT(
"Line (%d,%d):(%d,%d) in rectangle (%d,%d,%d,%d) clipped to (%d,%d,%d,%d)" ),
tmpX1, tmpY1, tmpX2, tmpY2, minX, minY, maxX, maxY, x1, y1, x2, y2 );
#endif
return false;
}
else if( aClipBox->Inside( x2, y2 ) )
{
if( x1 == x2 ) /* Vertical line, clip Y. */
{
if( y2 < minY )
{
y2 = minY;
return false;
}
if( y2 > maxY )
{
y2 = maxY;
return false;
}
}
else if( y1 == y2 ) /* Horizontal line, clip X. */
{
if( x2 < minX )
{
x2 = minX;
return false;
}
if( x2 > maxX )
{
x2 = maxX;
return false;
}
}
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, minX, maxY,
&clippedX, &clippedY ) /* Left */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, maxX, minY,
&clippedX, &clippedY ) /* Top */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, maxX, minY, maxX, maxY,
&clippedX, &clippedY ) /* Right */
|| TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, maxY, maxX, maxY,
&clippedX, &clippedY ) ) /* Bottom */
{
if( x1 != clippedX )
x1 = clippedX;
if( y1 != clippedY )
y1 = clippedY;
return false;
}
/* If we're here, something has gone terribly wrong. */
#if DEBUG_DUMP_CLIP_ERROR_COORDS
wxLogDebug( wxT(
"Line (%d,%d):(%d,%d) in rectangle (%d,%d,%d,%d) clipped to (%d,%d,%d,%d)" ),
tmpX1, tmpY1, tmpX2, tmpY2, minX, minY, maxX, maxY, x1, y1, x2, y2 );
#endif
return false;
}
else
{
int* intersectX;
int* intersectY;
int intersectX1, intersectY1, intersectX2, intersectY2;
bool haveFirstPoint = false;
intersectX = &intersectX1;
intersectY = &intersectY1;
/* Left clip rectangle line. */
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, minX, maxY,
intersectX, intersectY ) )
{
intersectX = &intersectX2;
intersectY = &intersectY2;
haveFirstPoint = true;
}
/* Top clip rectangle line. */
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, minY, maxX, minY,
intersectX, intersectY ) )
{
intersectX = &intersectX2;
intersectY = &intersectY2;
if( haveFirstPoint )
{
x1 = intersectX1;
y1 = intersectY1;
x2 = intersectX2;
y2 = intersectY2;
return false;
}
haveFirstPoint = true;
}
/* Right clip rectangle line. */
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, maxX, minY, maxX, maxY,
intersectX, intersectY ) )
{
intersectX = &intersectX2;
intersectY = &intersectY2;
if( haveFirstPoint )
{
x1 = intersectX1;
y1 = intersectY1;
x2 = intersectX2;
y2 = intersectY2;
return false;
}
haveFirstPoint = true;
}
/* Bottom clip rectangle line. */
if( TestForIntersectionOfStraightLineSegments( x1, y1, x2, y2, minX, maxY, maxX, maxY,
intersectX, intersectY ) )
{
intersectX = &intersectX2;
intersectY = &intersectY2;
if( haveFirstPoint )
{
x1 = intersectX1;
y1 = intersectY1;
x2 = intersectX2;
y2 = intersectY2;
return false;
}
}
/* If we're here and only one line of the clip box has been intersected,
* something has gone terribly wrong. */
#if DEBUG_DUMP_CLIP_ERROR_COORDS
if( haveFirstPoint )
wxLogDebug( wxT(
"Line (%d,%d):(%d,%d) in rectangle (%d,%d,%d,%d) clipped to (%d,%d,%d,%d)" ),
tmpX1, tmpY1, tmpX2, tmpY2, minX, minY, maxX, maxY, x1, y1, x2, y2 );
#endif
}
/* Set this to one to verify that diagonal lines get clipped properly. */
#if DEBUG_DUMP_CLIP_COORDS
if( !( x1 == x2 || y1 == y2 ) )
wxLogDebug( wxT( "Clipped line (%d,%d):(%d,%d) from rectangle (%d,%d,%d,%d)" ),
tmpX1, tmpY1, tmpX2, tmpY2, minX, minY, maxX, maxY );
#endif
return true;
}
#endif // if defined( USE_WX_ZOOM )
/**
* Function clip_line
* @return bool - true when WHEN_OUTSIDE fires, else false.
*/
static inline bool clip_line( int& x1, int& y1, int& x2, int& y2 )
{
int temp;
if( x1 > x2 )
{
EXCHG( x1, x2 );
EXCHG( y1, y2 );
}
if( (x2 < xcliplo) || (x1 > xcliphi) )
{
WHEN_OUTSIDE;
}
if( y1 < y2 )
{
if( (y2 < ycliplo) || (y1 > ycliphi) )
{
WHEN_OUTSIDE;
}
if( y1 < ycliplo )
{
temp = USCALE( (x2 - x1), (ycliplo - y1), (y2 - y1) );
if( (x1 += temp) > xcliphi )
{
WHEN_OUTSIDE;
}
y1 = ycliplo;
WHEN_INSIDE;
}
if( y2 > ycliphi )
{
temp = USCALE( (x2 - x1), (y2 - ycliphi), (y2 - y1) );
if( (x2 -= temp) < xcliplo )
{
WHEN_OUTSIDE;
}
y2 = ycliphi;
WHEN_INSIDE;
}
if( x1 < xcliplo )
{
temp = USCALE( (y2 - y1), (xcliplo - x1), (x2 - x1) );
y1 += temp;
x1 = xcliplo;
WHEN_INSIDE;
}
if( x2 > xcliphi )
{
temp = USCALE( (y2 - y1), (x2 - xcliphi), (x2 - x1) );
y2 -= temp;
x2 = xcliphi;
WHEN_INSIDE;
}
}
else
{
if( (y1 < ycliplo) || (y2 > ycliphi) )
{
WHEN_OUTSIDE;
}
if( y1 > ycliphi )
{
temp = USCALE( (x2 - x1), (y1 - ycliphi), (y1 - y2) );
if( (x1 += temp) > xcliphi )
{
WHEN_OUTSIDE;
}
y1 = ycliphi;
WHEN_INSIDE;
}
if( y2 < ycliplo )
{
temp = USCALE( (x2 - x1), (ycliplo - y2), (y1 - y2) );
if( (x2 -= temp) < xcliplo )
{
WHEN_OUTSIDE;
}
y2 = ycliplo;
WHEN_INSIDE;
}
if( x1 < xcliplo )
{
temp = USCALE( (y1 - y2), (xcliplo - x1), (x2 - x1) );
y1 -= temp;
x1 = xcliplo;
WHEN_INSIDE;
}
if( x2 > xcliphi )
{
temp = USCALE( (y1 - y2), (x2 - xcliphi), (x2 - x1) );
y2 += temp;
x2 = xcliphi;
WHEN_INSIDE;
}
}
return false;
}
static void WinClipAndDrawLine( EDA_Rect* ClipBox, wxDC* DC,
int x1, int y1, int x2, int y2,
int Color, int width = 1 )
{
GRLastMoveToX = x2;
GRLastMoveToY = y2;
if( ClipBox )
{
xcliplo = ClipBox->GetX();
ycliplo = ClipBox->GetY();
xcliphi = ClipBox->GetRight();
ycliphi = ClipBox->GetBottom();
xcliplo -= width;
ycliplo -= width;
xcliphi += width;
ycliphi += width;
#if defined( USE_WX_ZOOM )
if( clipLine( ClipBox, x1, y1, x2, y2 ) )
#else
if( clip_line( x1, y1, x2, y2 ) )
#endif
return;
}
GRSetColorPen( DC, Color, width );
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 = -1;
s_DC_lastcolor = -1;
s_DC_lastDC = NULL;
}
/**
* Function GRSetColorPen
* sets a pen style, width, color, and alpha into the given device context.
*/
void GRSetColorPen( wxDC* DC, int Color, int width, wxPenStyle style )
{
if( width < 0 )
width = 0;
if( s_ForceBlackPen )
{
Color = BLACK;
}
if( s_DC_lastcolor != Color
|| s_DC_lastwidth != width
|| s_DC_lastpenstyle != style
|| s_DC_lastDC != DC )
{
wxPen pen;
wxColour wx_color = MakeColour( Color );
pen.SetColour( wx_color );
pen.SetWidth( width );
pen.SetStyle( style );
DC->SetPen( pen );
s_DC_lastcolor = Color;
s_DC_lastwidth = width;
s_DC_lastpenstyle = style;
s_DC_lastDC = DC;
}
}
void GRSetBrush( wxDC* DC, int Color, int fill )
{
if( s_ForceBlackPen )
Color = BLACK;
if( s_DC_lastbrushcolor != Color
|| s_DC_lastbrushfill != fill
|| s_DC_lastDC != DC )
{
wxBrush DrawBrush;
DrawBrush.SetColour( MakeColour( Color ) );
if( fill )
DrawBrush.SetStyle( wxSOLID );
else
DrawBrush.SetStyle( wxTRANSPARENT );
DC->SetBrush( DrawBrush );
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;
}
/*************************************/
/* Set the device context draw mode. */
/*************************************/
void GRSetDrawMode( wxDC* DC, int draw_mode )
{
if( draw_mode & GR_OR )
#if defined(__WXMAC__) && (wxMAC_USE_CORE_GRAPHICS || wxCHECK_VERSION( 2, 9, 0 ) )
DC->SetLogicalFunction( wxCOPY );
#elif defined( USE_WX_GRAPHICS_CONTEXT )
DC->SetLogicalFunction( wxCOPY );
#else
DC->SetLogicalFunction( wxOR );
#endif
else if( draw_mode & GR_XOR )
#if defined( USE_WX_GRAPHICS_CONTEXT )
DC->SetLogicalFunction( wxCOPY );
#else
DC->SetLogicalFunction( wxXOR );
#endif
else if( draw_mode & GR_NXOR )
#if defined(__WXMAC__) && (wxMAC_USE_CORE_GRAPHICS || wxCHECK_VERSION( 2, 9, 0 ) )
DC->SetLogicalFunction( wxXOR );
#elif defined( USE_WX_GRAPHICS_CONTEXT )
DC->SetLogicalFunction( wxCOPY );
#else
DC->SetLogicalFunction( wxEQUIV );
#endif
else if( draw_mode & GR_INVERT )
#if defined( USE_WX_GRAPHICS_CONTEXT )
DC->SetLogicalFunction( wxCOPY );
#else
DC->SetLogicalFunction( wxINVERT );
#endif
else
DC->SetLogicalFunction( wxCOPY );
}
void GRPutPixel( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int Color )
{
GRSPutPixel( ClipBox, DC, GRMapX( x ), GRMapY( y ), Color );
}
void GRSPutPixel( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int Color )
{
if( ClipBox && !ClipBox->Inside( 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,
int Color )
{
GRSLine( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), ZoomValue( width ), Color );
}
void GRLine( EDA_Rect* aClipBox,
wxDC* aDC,
wxPoint aStart,
wxPoint aEnd,
int aWidth,
int aColor )
{
GRSLine( aClipBox, aDC, GRMapX( aStart.x ), GRMapY( aStart.y ),
GRMapX( aEnd.x ), GRMapY( aEnd.y ),
ZoomValue( aWidth ), aColor );
}
/*
* Draw a dashed line, in screen space.
*/
void GRSDashedLine( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int Color )
{
GRLastMoveToX = x2;
GRLastMoveToY = y2;
s_DC_lastcolor = -1;
GRSetColorPen( DC, Color, width, wxPENSTYLE_SHORT_DASH );
GRSLine( ClipBox, DC, x1, y1, x2, y2, width, Color );
s_DC_lastcolor = -1;
GRSetColorPen( DC, Color, width );
}
void GRSDashedLineTo( EDA_Rect* ClipBox,
wxDC* DC,
int x2,
int y2,
int width,
int Color )
{
s_DC_lastcolor = -1;
GRSetColorPen( DC, Color, width, wxPENSTYLE_SHORT_DASH );
GRSLine( ClipBox, DC, GRLastMoveToX, GRLastMoveToY, x2, y2, width, Color );
s_DC_lastcolor = -1;
GRSetColorPen( DC, Color, width );
GRLastMoveToX = x2;
GRLastMoveToY = y2;
}
/*
* Draw a dashed line, in object space.
*/
void GRDashedLineTo( EDA_Rect* ClipBox,
wxDC* DC,
int x2,
int y2,
int width,
int Color )
{
GRSDashedLineTo( ClipBox, DC, GRMapX( x2 ), GRMapY( y2 ),
ZoomValue( width ), Color );
}
void GRDashedLine( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int Color )
{
GRSDashedLine( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), ZoomValue( width ), Color );
}
/*
* Move to a new position, in object space.
*/
void GRMoveTo( int x, int y )
{
GRLastMoveToX = GRMapX( x );
GRLastMoveToY = GRMapY( y );
}
/*
* Draw line to a new position, in object space.
*/
void GRLineTo( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int width, int Color )
{
int GRLineToX, GRLineToY;
GRLineToX = GRMapX( x ); GRLineToY = GRMapY( y );
GRSLine( ClipBox,
DC,
GRLastMoveToX,
GRLastMoveToY,
GRLineToX,
GRLineToY,
ZoomValue( width ),
Color );
}
/*
* Draw a mixed line, in object space.
*/
void GRMixedLine( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int Color )
{
GRSMixedLine( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), ZoomValue( width ), Color );
}
/*
* Draw a mixed line, in screen (Pixels) space.
* Currently, draw a line (not a mixed line)
* Perhaps this function is not very useful.
*/
void GRSMixedLine( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int Color )
{
GRSetColorPen( DC, Color, width, wxPENSTYLE_DOT_DASH );
GRSLine( ClipBox, DC, x1, y1, x2, y2, width, Color );
GRSetColorPen( DC, Color, width );
}
/*
* Move to a new position, in screen (pixels) space.
*/
void GRSMoveTo( int x, int y )
{
GRLastMoveToX = x;
GRLastMoveToY = y;
}
/*
* Draw line to a new position, in screen (pixels) space.
*/
void GRSLine( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int Color )
{
WinClipAndDrawLine( ClipBox, DC, x1, y1, x2, y2, Color, width );
GRLastMoveToX = x2;
GRLastMoveToY = y2;
}
/**
* 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 = an index into our color table of RGB colors.
* @see EDA_Colors and colors.h
*/
void GRLineArray( EDA_Rect* aClipBox, wxDC* aDC,
std::vector<wxPoint>& aLines,
int aWidth, int aColor )
{
for( unsigned i = 0; i < aLines.size(); i++ )
{
aLines[i].x = GRMapX( aLines[i].x );
aLines[i].y = GRMapY( aLines[i].y );
}
aWidth = ZoomValue( aWidth );
GRSLineArray( aClipBox, aDC, aLines, aWidth, aColor );
}
void GRSLineArray( EDA_Rect* aClipBox, wxDC* aDC,
std::vector<wxPoint>& aLines,
int aWidth, int aColor )
{
GRSetColorPen( aDC, aColor, aWidth );
#if defined( USE_WX_GRAPHICS_CONTEXT ) || defined(__WXMAC__)
wxGraphicsContext* gc = wxGraphicsContext::Create( aDC );
wxASSERT( gc );
gc->Clip( aClipBox->GetX(), aClipBox->GetY(), aClipBox->GetRight(), aClipBox->GetHeight() );
wxGraphicsPath path = gc->CreatePath();
for( unsigned i = 0; i < aLines.size(); )
{
path.MoveToPoint( aLines[i].x, aLines[i].y );
i++;
path.AddLineToPoint( aLines[i].x, aLines[i].y );
i++;
}
gc->StrokePath( path );
gc->ResetClip();
delete gc;
#else
for( unsigned i = 0; i < aLines.size(); )
{
WinClipAndDrawLine( aClipBox, aDC, aLines[i].x, aLines[i].y,
aLines[i + 1].x, aLines[i + 1].y, aColor, aWidth );
i++;
GRLastMoveToX = aLines[i].x;
GRLastMoveToY = aLines[i].y;
i++;
}
#endif
}
/*
* Draw segment with rounded ends in object space.
*/
void GRCSegm( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int aPenSize, int Color )
{
GRSCSegm( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), ZoomValue( width ), ZoomValue( aPenSize ), Color );
}
void GRCSegm( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int width, int Color )
{
GRSCSegm( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), ZoomValue( width ), 0, Color );
}
void GRCSegm( EDA_Rect* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
int aWidth, int aColor )
{
GRSCSegm( aClipBox, aDC, GRMapX( aStart.x ), GRMapY( aStart.y ),
GRMapX( aEnd.x ), GRMapY( aEnd.y ),
ZoomValue( 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, int Color )
{
WinClipAndDrawLine( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), Color, ZoomValue( width ) );
}
void GRFilledSegment( EDA_Rect* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
int aWidth, int aColor )
{
WinClipAndDrawLine( aClipBox, aDC, GRMapX( aStart.x ), GRMapY( aStart.y ),
GRMapX( aEnd.x ), GRMapY( aEnd.y ),
aColor, ZoomValue( aWidth ) );
}
/*
* Draw segment with rounded ends (SKETCH mode) in screen space
*/
void GRSCSegm( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int width,
int aPenSize,
int Color )
{
long radius;
int dwx, dwy;
long dx, dy, dwx2, dwy2;
long sx1, sy1, ex1, ey1;
long sx2, sy2, ex2, ey2;
bool swap_ends = false;
GRLastMoveToX = x2;
GRLastMoveToY = y2;
if( ClipBox )
{
xcliplo = ClipBox->GetX();
ycliplo = ClipBox->GetY();
xcliphi = ClipBox->GetRight();
ycliphi = ClipBox->GetHeight();
xcliplo -= width;
ycliplo -= width;
xcliphi += width;
ycliphi += width;
#if defined( USE_WX_ZOOM )
if( clipLine( ClipBox, x1, y1, x2, y2 ) )
#else
if( clip_line( x1, y1, x2, y2 ) )
#endif
return;
}
if( width <= 2 ) /* single line or 2 pixels */
{
GRSetColorPen( DC, Color, width );
DC->DrawLine( x1, y1, x2, y2 );
return;
}
GRSetColorPen( DC, Color, aPenSize );
GRSetBrush( DC, Color, false );
radius = (width + 1) >> 1;
dx = x2 - x1;
dy = y2 - y1;
if( dx == 0 ) /* segment vertical */
{
dwx = radius;
if( dy >= 0 )
dwx = -dwx;
sx1 = x1 - dwx;
sy1 = y1;
ex1 = x2 - dwx;
ey1 = y2;
DC->DrawLine( sx1, sy1, ex1, ey1 );
sx2 = x1 + dwx;
sy2 = y1;
ex2 = x2 + dwx;
ey2 = y2;
DC->DrawLine( sx2, sy2, ex2, ey2 );
}
else if( dy == 0 ) /* segment horizontal */
{
dwy = radius;
if( dx < 0 )
dwy = -dwy;
sx1 = x1;
sy1 = y1 - dwy;
ex1 = x2;
ey1 = y2 - dwy;
DC->DrawLine( sx1, sy1, ex1, ey1 );
sx2 = x1;
sy2 = y1 + dwy;
ex2 = x2;
ey2 = y2 + dwy;
DC->DrawLine( sx2, sy2, ex2, ey2 );
}
else
{
if( ABS( dx ) == ABS( dy ) ) /* segment 45 degrees */
{
dwx = dwy = ( (width * 5) + 4 ) / 7; // = width / 2 * 0.707
if( dy < 0 )
{
if( dx <= 0 )
{
dwx = -dwx; swap_ends = true;
}
}
else // dy >= 0
{
if( dx > 0 )
{
dwy = -dwy; swap_ends = true;
}
else
swap_ends = true;
}
}
else
{
int delta_angle = ArcTangente( dy, dx );
dwx = 0;
dwy = width;
RotatePoint( &dwx, &dwy, -delta_angle );
}
dwx2 = dwx >> 1;
dwy2 = dwy >> 1;
sx1 = x1 - dwx2;
sy1 = y1 - dwy2;
ex1 = x2 - dwx2;
ey1 = y2 - dwy2;
DC->DrawLine( sx1, sy1, ex1, ey1 );
sx2 = x1 + dwx2;
sy2 = y1 + dwy2;
ex2 = x2 + dwx2;
ey2 = y2 + dwy2;
DC->DrawLine( sx2, sy2, ex2, ey2 );
}
if( swap_ends )
{
DC->DrawArc( sx2, sy2, sx1, sy1, x1, y1 );
DC->DrawArc( ex1, ey1, ex2, ey2, x2, y2 );
}
else
{
DC->DrawArc( sx1, sy1, sx2, sy2, x1, y1 );
DC->DrawArc( ex2, ey2, ex1, ey1, x2, y2 );
}
}
static bool IsGRSPolyDrawable( EDA_Rect* ClipBox, int n, 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 = MIN( Xmin, Points[ii].x );
Xmax = MAX( Xmax, Points[ii].x );
Ymin = MIN( Ymin, Points[ii].y );
Ymax = 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,
wxPoint Points[],
bool Fill,
int width,
int Color,
int BgColor )
{
if( !IsGRSPolyDrawable( ClipBox, n, Points ) )
return;
GRSetColorPen( DC, Color, width );
if( Fill && ( n > 2 ) )
{
GRSetBrush( DC, BgColor, FILLED );
/* clip before send the filled polygon to wxDC, because under linux
* (GTK?) polygons having large coordinates are incorrectly drawn
*/
#ifdef USE_CLIP_FILLED_POLYGONS
ClipAndDrawFilledPoly( ClipBox, DC, Points, n );
#else
DC->DrawPolygon( n, Points ); // does not work very well under linux
#endif
}
else
{
wxPoint endPt = Points[n - 1];
GRSetBrush( DC, Color );
DC->DrawLines( n, Points );
// The last point is not drawn by DrawLine and DrawLines
// Add it if the polygon is not closed
if( endPt != Points[0] )
DC->DrawPoint( endPt.x, endPt.y );
}
}
/*
* Draw a new closed polyline and fill it if Fill, in screen space.
*/
static void GRSClosedPoly( EDA_Rect* ClipBox,
wxDC* DC,
int aPointCount,
wxPoint aPoints[],
bool Fill,
int width,
int Color,
int BgColor )
{
if( !IsGRSPolyDrawable( ClipBox, aPointCount, aPoints ) )
return;
GRSetColorPen( DC, Color, width );
if( Fill && ( aPointCount > 2 ) )
{
GRSMoveTo( aPoints[aPointCount - 1].x, aPoints[aPointCount - 1].y );
GRSetBrush( DC, BgColor, FILLED );
#ifdef USE_CLIP_FILLED_POLYGONS
ClipAndDrawFilledPoly( ClipBox, DC, aPoints, aPointCount );
#else
DC->DrawPolygon( aPointCount, aPoints ); // does not work very well under linux
#endif
}
else
{
GRSetBrush( DC, BgColor );
DC->DrawLines( aPointCount, aPoints );
/* Close the polygon. */
if( aPoints[aPointCount - 1] != aPoints[0] )
{
GRSLine( ClipBox,
DC,
aPoints[0].x,
aPoints[0].y,
aPoints[aPointCount - 1].x,
aPoints[aPointCount - 1].y,
width,
Color );
}
}
}
/*
* Draw a new polyline and fill it if Fill, in drawing space.
*/
void GRPoly( EDA_Rect* ClipBox, wxDC* DC, int n, wxPoint Points[],
bool Fill, int width, int Color, int BgColor )
{
for( int i = 0; i<n; ++i )
{
Points[i].x = GRMapX( Points[i].x );
Points[i].y = GRMapY( Points[i].y );
}
width = ZoomValue( width );
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, wxPoint Points[],
bool Fill, int Color, int BgColor )
{
GRClosedPoly( ClipBox, DC, n, Points, Fill, 0, Color, BgColor );
}
void GRClosedPoly( EDA_Rect* ClipBox, wxDC* DC, int n, wxPoint Points[],
bool Fill, int width, int Color, int BgColor )
{
for( int i = 0; i<n; ++i )
{
Points[i].x = GRMapX( Points[i].x );
Points[i].y = GRMapY( Points[i].y );
}
width = ZoomValue( width );
GRSClosedPoly( ClipBox, DC, n, Points, Fill, width, Color, BgColor );
}
/*
* Draw a circle, in object space.
*/
void GRCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r, int Color )
{
int cx = GRMapX( x );
int cy = GRMapY( y );
int radius = ZoomValue( r );
GRSCircle( ClipBox, DC, cx, cy, radius, 0, Color );
}
/*
* Draw a circle in object space.
*/
void GRCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r, int width, int Color )
{
r = ZoomValue( r );
width = ZoomValue( width );
GRSCircle( ClipBox, DC, GRMapX( x ), GRMapY( y ), r, width, Color );
}
/*
* Draw a circle in object space.
*/
void GRCircle( EDA_Rect* aClipBox, wxDC* aDC, wxPoint aPos, int aRadius, int aWidth, int aColor )
{
aRadius = ZoomValue( aRadius );
aWidth = ZoomValue( aWidth );
GRSCircle( aClipBox, aDC, GRMapX( aPos.x ), GRMapY( aPos.y ), aRadius, aWidth, aColor );
}
/*
* Draw a filled circle, in object space.
*/
void GRFilledCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r,
int width, int Color, int BgColor )
{
r = ZoomValue( r );
width = ZoomValue( width );
GRSFilledCircle( ClipBox, DC, GRMapX( x ), GRMapY( y ), r, width,
Color, BgColor );
}
/*
* Draw a filled circle, in object space.
*/
void GRFilledCircle( EDA_Rect* aClipBox, wxDC* aDC, wxPoint aPos, int aRadius, int aColor )
{
aRadius = ZoomValue( aRadius );
GRSFilledCircle( aClipBox, aDC, GRMapX( aPos.x ), GRMapY( aPos.y ), aRadius, 0,
aColor, aColor );
}
/*
* Draw a filled circle, in drawing space.
*/
void GRSFilledCircle( EDA_Rect* ClipBox, wxDC* DC, int x, int y, int r,
int width, int Color, int BgColor )
{
/* Clip circles 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) )
return;
if( y < (y0 - r) )
return;
if( x > (r + xm) )
return;
if( y > (r + ym) )
return;
}
GRSetColorPen( DC, Color, width );
GRSetBrush( DC, BgColor, FILLED );
DC->DrawEllipse( x - r, y - r, r + r, r + r );
}
/*
* Draw a circle in drawing space.
*/
void GRSCircle( EDA_Rect* ClipBox,
wxDC* DC,
int xc,
int yc,
int r,
int width,
int Color )
{
/* Clip circles off screen. */
if( ClipBox )
{
int x0, y0, xm, ym;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
if( xc < ( x0 - r - width ) )
return;
if( yc < ( y0 - r - width ) )
return;
if( xc > ( r + xm + width ) )
return;
if( yc > ( r + ym + width ) )
return;
}
GRSetColorPen( DC, Color, width );
GRSetBrush( DC, Color, false );
DC->DrawEllipse( xc - r, yc - r, r + r, r + r );
}
/*
* 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, int Color )
{
GRSArc1( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), GRMapX( xc ), GRMapY( 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, int Color )
{
GRSArc1( ClipBox, DC, GRMapX( x1 ), GRMapY( y1 ), GRMapX( x2 ),
GRMapY( y2 ), GRMapX( xc ), GRMapY( yc ), ZoomValue( width ),
Color );
}
void GRArc1( EDA_Rect* aClipBox, wxDC* aDC, wxPoint aStart, wxPoint aEnd,
wxPoint aCenter, int aWidth, int aColor )
{
GRSArc1( aClipBox, aDC, GRMapX( aStart.x ), GRMapY( aStart.y ),
GRMapX( aEnd.x ), GRMapY( aEnd.y ),
GRMapX( aCenter.x ), GRMapY( aCenter.y ), ZoomValue( aWidth ),
aColor );
}
/*
* Draw an arc, width = width, in screen space.
*/
void GRSArc1( EDA_Rect* ClipBox, wxDC* DC, int x1, int y1, int x2, int y2,
int xc, int yc, int width, int 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 = (int) hypot( x1 - xc, y1 - yc );
if( xc < ( x0 - r ) )
return;
if( yc < ( y0 - r ) )
return;
if( xc > ( r + xm ) )
return;
if( yc > ( r + ym ) )
return;
}
GRSetColorPen( DC, Color, width );
GRSetBrush( DC, Color );
DC->DrawArc( x1, y1, x2, y2, xc, yc );
}
/*
* Draw an arc in screen space.
*/
void GRSArc( EDA_Rect* ClipBox,
wxDC* DC,
int xc,
int yc,
int StAngle,
int EndAngle,
int r,
int width,
int 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( xc < ( x0 - r - width ) )
return;
if( yc < ( y0 - r - width ) )
return;
if( xc > ( r + xm + width ) )
return;
if( yc > ( r + ym + width ) )
return;
}
x1 = r;
y1 = 0;
RotatePoint( &x1, &y1, EndAngle );
x2 = r;
y2 = 0;
RotatePoint( &x2, &y2, StAngle );
GRSetColorPen( DC, Color, width );
GRSetBrush( DC, Color );
DC->DrawArc( xc + x1, yc - y1, xc + x2, yc - y2, xc, yc );
}
/*
* Draw an filled arc in screen space.
*/
void GRSFilledArc( EDA_Rect* ClipBox,
wxDC* DC,
int xc,
int yc,
int StAngle,
int EndAngle,
int r,
int width,
int Color,
int 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( xc < ( x0 - r - 1 ) )
return;
if( yc < ( y0 - r - 1 ) )
return;
if( xc > ( r + xm + 1 ) )
return;
if( yc > ( 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( xc + x1, yc - y1, xc + x2, yc - y2, xc, yc );
}
/*
* Draw a filled arc in drawing space.
*/
void GRFilledArc( EDA_Rect* ClipBox,
wxDC* DC,
int x,
int y,
int StAngle,
int EndAngle,
int r,
int width,
int Color,
int BgColor )
{
width = ZoomValue( width );
GRSFilledArc( ClipBox, DC, GRMapX( x ), GRMapY( y ), StAngle, EndAngle,
ZoomValue( r ), width, Color, BgColor );
}
void GRFilledArc( EDA_Rect* ClipBox, wxDC* DC, int x, int y,
int StAngle, int EndAngle, int r, int Color, int BgColor )
{
GRSFilledArc( ClipBox, DC, GRMapX( x ), GRMapY( y ), StAngle, EndAngle,
ZoomValue( r ), 0, Color, BgColor );
}
/*
* Draw an arc in drawing space.
*/
void GRArc( EDA_Rect* ClipBox, wxDC* DC, int xc, int yc, int StAngle,
int EndAngle, int r, int Color )
{
int x1, y1, x2, y2;
/* Clip arcs off screen */
if( ClipBox )
{
int radius = ZoomValue( r ) + 1;
int x0, y0, xm, ym, x, y;
x0 = ClipBox->GetX();
y0 = ClipBox->GetY();
xm = ClipBox->GetRight();
ym = ClipBox->GetBottom();
x = GRMapX( xc ); y = GRMapY( 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 );
GRSetColorPen( DC, Color );
GRSetBrush( DC, Color, false );
DC->DrawArc( GRMapX( xc + x1 ), GRMapY( yc - y1 ), GRMapX( xc + x2 ),
GRMapY( yc - y2 ), GRMapX( xc ), GRMapY( yc ) );
}
/*
* Draw an arc with width = width in drawing space.
*/
void GRArc( EDA_Rect* ClipBox,
wxDC* DC,
int x,
int y,
int StAngle,
int EndAngle,
int r,
int width,
int Color )
{
GRSArc( ClipBox, DC, GRMapX( x ), GRMapY( y ), StAngle, EndAngle,
ZoomValue( r ), ZoomValue( width ), Color );
}
/*
* Draw a rectangle in drawing space.
*/
void GRRect( EDA_Rect* aClipBox, wxDC* aDC, int x1, int y1, int x2, int y2, int aColor )
{
x1 = GRMapX( x1 );
y1 = GRMapY( y1 );
x2 = GRMapX( x2 );
y2 = GRMapY( y2 );
GRSRect( aClipBox, aDC, x1, y1, x2, y2, 0, aColor );
}
void GRRectPs( EDA_Rect* aClipBox, wxDC* aDC, const EDA_Rect& aRect, int aColor, wxPenStyle aStyle )
{
int x1 = GRMapX( aRect.GetX() );
int y1 = GRMapY( aRect.GetY() );
int x2 = GRMapX( aRect.GetRight() );
int y2 = GRMapY( 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, int Color )
{
x1 = GRMapX( x1 );
y1 = GRMapY( y1 );
x2 = GRMapX( x2 );
y2 = GRMapY( y2 );
width = ZoomValue( width );
GRSRect( ClipBox, DC, x1, y1, x2, y2, width, Color );
}
void GRRect( EDA_Rect* aClipBox, wxDC* aDC, const EDA_Rect& aRect, int aWidth, int aColor )
{
int x1 = GRMapX( aRect.GetX() );
int y1 = GRMapY( aRect.GetY() );
int x2 = GRMapX( aRect.GetRight() );
int y2 = GRMapY( aRect.GetBottom() );
int width = ZoomValue( aWidth );
GRSRect( aClipBox, aDC, x1, y1, x2, y2, width, 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,
int Color, int BgColor )
{
x1 = GRMapX( x1 );
y1 = GRMapY( y1 );
x2 = GRMapX( x2 );
y2 = GRMapY( y2 );
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, int Color, int BgColor )
{
x1 = GRMapX( x1 );
y1 = GRMapY( y1 );
x2 = GRMapX( x2 );
y2 = GRMapY( y2 );
width = ZoomValue( width );
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, int aColor, wxPenStyle aStyle )
{
if( x1 > x2 )
EXCHG( x1, x2 );
if( y1 > y2 )
EXCHG( y1, y2 );
if( aClipBox )
{
int xmin = aClipBox->GetX();
int ymin = aClipBox->GetY();
int xmax = aClipBox->GetRight();
int ymax = aClipBox->GetBottom();
if( x1 > xmax )
return;
if( x2 < xmin )
return;
if( y1 > ymax )
return;
if( y2 < ymin )
return;
}
GRSetColorPen( aDC, aColor, aWidth, aStyle );
if( ( x1 == x2 ) || ( y1 == y2 ) )
aDC->DrawLine( x1, y1, x2, y2 );
else
{
GRSetBrush( aDC, BLACK );
aDC->DrawRectangle( x1, y1, x2 - x1, y2 - y1 );
}
}
void GRSFilledRect( EDA_Rect* ClipBox, wxDC* DC,
int x1, int y1, int x2, int y2,
int width, int Color, int BgColor )
{
if( x1 > x2 )
EXCHG( x1, x2 );
if( y1 > y2 )
EXCHG( y1, y2 );
if( ClipBox )
{
int xmin = ClipBox->GetX();
int ymin = ClipBox->GetY();
int xmax = ClipBox->GetRight();
int ymax = ClipBox->GetBottom();
if( x1 > xmax )
return;
if( x2 < xmin )
return;
if( y1 > ymax )
return;
if( y2 < ymin )
return;
// Clipping coordinates
if( x1 < xmin )
x1 = xmin - 1;
if( y1 < ymin )
y1 = ymin - 1;
if( x2 > xmax )
x2 = xmax + 1;
if( y2 > ymax )
y2 = ymax + 1;
}
GRSetColorPen( DC, Color, width );
if( ( x1 == x2 ) || ( y1 == y2 ) )
DC->DrawLine( x1, y1, x2, y2 );
else
{
GRSetBrush( DC, BgColor, FILLED );
DC->DrawRectangle( x1, y1, x2 - x1, y2 - y1 );
}
}
#ifdef USE_CLIP_FILLED_POLYGONS
/**
* Function ClipAndDrawFilledPoly
* 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 ClipAndDrawFilledPoly( EDA_Rect* aClipBox,
wxDC* aDC,
wxPoint aPoints[],
int n )
{
if( aClipBox == NULL )
{
aDC->DrawPolygon( n, aPoints );
return;
}
// A clip box exists: clip and draw the polygon.
static 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.push_back( wxPoint( wxRound( cit->X ),
wxRound( cit->Y ) ) );
}
if( clippedPolygon.size() )
aDC->DrawPolygon( clippedPolygon.size(), &clippedPolygon[0] );
}
#endif
void GRBezier( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int x3,
int y3,
int width,
int Color )
{
std::vector<wxPoint> Points = Bezier2Poly( x1, y1, x2, y2, x3, y3 );
GRPoly( ClipBox, DC, Points.size(), &Points[0], false, width, Color, 0 );
}
void GRBezier( EDA_Rect* ClipBox,
wxDC* DC,
int x1,
int y1,
int x2,
int y2,
int x3,
int y3,
int x4,
int y4,
int width,
int Color )
{
std::vector<wxPoint> Points = Bezier2Poly( x1, y1, x2, y2, x3, y3, x4, y4 );
GRPoly( ClipBox, DC, Points.size(), &Points[0], false, width, Color, 0 );
}
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