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f7d4537c2bcf5a935edacadb627b01dbc6523beb
wxWidgets/src/common/dcbase.cpp
Julian Smart 12bdd77c85 Can now switch between PostScript and WIN32 print dialogs 
by setting the value of wxUSE_POSTSCRIPT_ARCHITECTURE_IN_MSW.
Added first part of Peter Lenhard's WinCE DrawEllipticArc
implementation.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@22912 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2003-08-15 10:17:14 +00:00

864 lines
26 KiB
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/////////////////////////////////////////////////////////////////////////////
// Name: common/dcbase.cpp
// Purpose: generic methods of the wxDC Class
// Author: Vadim Zeitlin
// Modified by:
// Created: 05/25/99
// RCS-ID: $Id$
// Copyright: (c) wxWindows team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// declarations
// ============================================================================
#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "dcbase.h"
#endif
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#include "wx/dc.h"
#include <math.h>
// bool wxDCBase::sm_cacheing = FALSE;
// ============================================================================
// implementation
// ============================================================================
// ----------------------------------------------------------------------------
// special symbols
// ----------------------------------------------------------------------------
void wxDCBase::DoDrawCheckMark(wxCoord x1, wxCoord y1,
wxCoord width, wxCoord height)
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
wxCoord x2 = x1 + width,
y2 = y1 + height;
// this is to yield width of 3 for width == height == 10
SetPen(wxPen(GetTextForeground(), (width + height + 1) / 7, wxSOLID));
// we're drawing a scaled version of wx/generic/tick.xpm here
wxCoord x3 = x1 + (4*width) / 10, // x of the tick bottom
y3 = y1 + height / 2; // y of the left tick branch
DoDrawLine(x1, y3, x3, y2);
DoDrawLine(x3, y2, x2, y1);
CalcBoundingBox(x1, y1);
CalcBoundingBox(x2, y2);
}
// ----------------------------------------------------------------------------
// line/polygons
// ----------------------------------------------------------------------------
void wxDCBase::DrawLines(const wxList *list, wxCoord xoffset, wxCoord yoffset)
{
int n = list->GetCount();
wxPoint *points = new wxPoint[n];
int i = 0;
for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
{
wxPoint *point = (wxPoint *)node->GetData();
points[i].x = point->x;
points[i].y = point->y;
}
DoDrawLines(n, points, xoffset, yoffset);
delete [] points;
}
void wxDCBase::DrawPolygon(const wxList *list,
wxCoord xoffset, wxCoord yoffset,
int fillStyle)
{
int n = list->GetCount();
wxPoint *points = new wxPoint[n];
int i = 0;
for ( wxList::compatibility_iterator node = list->GetFirst(); node; node = node->GetNext(), i++ )
{
wxPoint *point = (wxPoint *)node->GetData();
points[i].x = point->x;
points[i].y = point->y;
}
DoDrawPolygon(n, points, xoffset, yoffset, fillStyle);
delete [] points;
}
// ----------------------------------------------------------------------------
// splines
// ----------------------------------------------------------------------------
#if wxUSE_SPLINES
// TODO: this API needs fixing (wxPointList, why (!const) "wxList *"?)
void wxDCBase::DrawSpline(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2, wxCoord x3, wxCoord y3)
{
wxList point_list;
wxPoint *point1 = new wxPoint;
point1->x = x1; point1->y = y1;
point_list.Append((wxObject*)point1);
wxPoint *point2 = new wxPoint;
point2->x = x2; point2->y = y2;
point_list.Append((wxObject*)point2);
wxPoint *point3 = new wxPoint;
point3->x = x3; point3->y = y3;
point_list.Append((wxObject*)point3);
DrawSpline(&point_list);
for( wxList::compatibility_iterator node = point_list.GetFirst(); node; node = node->GetNext() )
{
wxPoint *p = (wxPoint *)node->GetData();
delete p;
}
}
void wxDCBase::DrawSpline(int n, wxPoint points[])
{
wxList list;
for (int i =0; i < n; i++)
{
list.Append((wxObject*)&points[i]);
}
DrawSpline(&list);
}
// ----------------------------------- spline code ----------------------------------------
void wx_quadratic_spline(double a1, double b1, double a2, double b2,
double a3, double b3, double a4, double b4);
void wx_clear_stack();
int wx_spline_pop(double *x1, double *y1, double *x2, double *y2, double *x3,
double *y3, double *x4, double *y4);
void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3,
double x4, double y4);
static bool wx_spline_add_point(double x, double y);
static void wx_spline_draw_point_array(wxDCBase *dc);
wxList wx_spline_point_list;
#define half(z1, z2) ((z1+z2)/2.0)
#define THRESHOLD 5
/* iterative version */
void wx_quadratic_spline(double a1, double b1, double a2, double b2, double a3, double b3, double a4,
double b4)
{
register double xmid, ymid;
double x1, y1, x2, y2, x3, y3, x4, y4;
wx_clear_stack();
wx_spline_push(a1, b1, a2, b2, a3, b3, a4, b4);
while (wx_spline_pop(&x1, &y1, &x2, &y2, &x3, &y3, &x4, &y4)) {
xmid = (double)half(x2, x3);
ymid = (double)half(y2, y3);
if (fabs(x1 - xmid) < THRESHOLD && fabs(y1 - ymid) < THRESHOLD &&
fabs(xmid - x4) < THRESHOLD && fabs(ymid - y4) < THRESHOLD) {
wx_spline_add_point( x1, y1 );
wx_spline_add_point( xmid, ymid );
} else {
wx_spline_push(xmid, ymid, (double)half(xmid, x3), (double)half(ymid, y3),
(double)half(x3, x4), (double)half(y3, y4), x4, y4);
wx_spline_push(x1, y1, (double)half(x1, x2), (double)half(y1, y2),
(double)half(x2, xmid), (double)half(y2, ymid), xmid, ymid);
}
}
}
/* utilities used by spline drawing routines */
typedef struct wx_spline_stack_struct {
double x1, y1, x2, y2, x3, y3, x4, y4;
} Stack;
#define SPLINE_STACK_DEPTH 20
static Stack wx_spline_stack[SPLINE_STACK_DEPTH];
static Stack *wx_stack_top;
static int wx_stack_count;
void wx_clear_stack()
{
wx_stack_top = wx_spline_stack;
wx_stack_count = 0;
}
void wx_spline_push(double x1, double y1, double x2, double y2, double x3, double y3, double x4, double y4)
{
wx_stack_top->x1 = x1;
wx_stack_top->y1 = y1;
wx_stack_top->x2 = x2;
wx_stack_top->y2 = y2;
wx_stack_top->x3 = x3;
wx_stack_top->y3 = y3;
wx_stack_top->x4 = x4;
wx_stack_top->y4 = y4;
wx_stack_top++;
wx_stack_count++;
}
int wx_spline_pop(double *x1, double *y1, double *x2, double *y2,
double *x3, double *y3, double *x4, double *y4)
{
if (wx_stack_count == 0)
return (0);
wx_stack_top--;
wx_stack_count--;
*x1 = wx_stack_top->x1;
*y1 = wx_stack_top->y1;
*x2 = wx_stack_top->x2;
*y2 = wx_stack_top->y2;
*x3 = wx_stack_top->x3;
*y3 = wx_stack_top->y3;
*x4 = wx_stack_top->x4;
*y4 = wx_stack_top->y4;
return (1);
}
static bool wx_spline_add_point(double x, double y)
{
wxPoint *point = new wxPoint ;
point->x = (int) x;
point->y = (int) y;
wx_spline_point_list.Append((wxObject*)point);
return TRUE;
}
static void wx_spline_draw_point_array(wxDCBase *dc)
{
dc->DrawLines(&wx_spline_point_list, 0, 0 );
wxList::compatibility_iterator node = wx_spline_point_list.GetFirst();
while (node)
{
wxPoint *point = (wxPoint *)node->GetData();
delete point;
wx_spline_point_list.Erase(node);
node = wx_spline_point_list.GetFirst();
}
}
void wxDCBase::DoDrawSpline( wxList *points )
{
wxCHECK_RET( Ok(), wxT("invalid window dc") );
wxPoint *p;
double cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4;
double x1, y1, x2, y2;
wxList::compatibility_iterator node = points->GetFirst();
p = (wxPoint *)node->GetData();
x1 = p->x;
y1 = p->y;
node = node->GetNext();
p = (wxPoint *)node->GetData();
x2 = p->x;
y2 = p->y;
cx1 = (double)((x1 + x2) / 2);
cy1 = (double)((y1 + y2) / 2);
cx2 = (double)((cx1 + x2) / 2);
cy2 = (double)((cy1 + y2) / 2);
wx_spline_add_point(x1, y1);
while ((node = node->GetNext())
#if !wxUSE_STL
!= NULL
#endif // !wxUSE_STL
)
{
p = (wxPoint *)node->GetData();
x1 = x2;
y1 = y2;
x2 = p->x;
y2 = p->y;
cx4 = (double)(x1 + x2) / 2;
cy4 = (double)(y1 + y2) / 2;
cx3 = (double)(x1 + cx4) / 2;
cy3 = (double)(y1 + cy4) / 2;
wx_quadratic_spline(cx1, cy1, cx2, cy2, cx3, cy3, cx4, cy4);
cx1 = cx4;
cy1 = cy4;
cx2 = (double)(cx1 + x2) / 2;
cy2 = (double)(cy1 + y2) / 2;
}
wx_spline_add_point( cx1, cy1 );
wx_spline_add_point( x2, y2 );
wx_spline_draw_point_array( this );
}
#endif // wxUSE_SPLINES
// ----------------------------------------------------------------------------
// enhanced text drawing
// ----------------------------------------------------------------------------
void wxDCBase::GetMultiLineTextExtent(const wxString& text,
wxCoord *x,
wxCoord *y,
wxCoord *h,
wxFont *font)
{
wxCoord widthTextMax = 0, widthLine,
heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
wxString curLine;
for ( const wxChar *pc = text; ; pc++ )
{
if ( *pc == _T('\n') || *pc == _T('\0') )
{
if ( curLine.empty() )
{
// we can't use GetTextExtent - it will return 0 for both width
// and height and an empty line should count in height
// calculation
// assume that this line has the same height as the previous
// one
if ( !heightLineDefault )
heightLineDefault = heightLine;
if ( !heightLineDefault )
{
// but we don't know it yet - choose something reasonable
GetTextExtent(_T("W"), NULL, &heightLineDefault,
NULL, NULL, font);
}
heightTextTotal += heightLineDefault;
}
else
{
GetTextExtent(curLine, &widthLine, &heightLine,
NULL, NULL, font);
if ( widthLine > widthTextMax )
widthTextMax = widthLine;
heightTextTotal += heightLine;
}
if ( *pc == _T('\n') )
{
curLine.clear();
}
else
{
// the end of string
break;
}
}
else
{
curLine += *pc;
}
}
if ( x )
*x = widthTextMax;
if ( y )
*y = heightTextTotal;
if ( h )
*h = heightLine;
}
void wxDCBase::DrawLabel(const wxString& text,
const wxBitmap& bitmap,
const wxRect& rect,
int alignment,
int indexAccel,
wxRect *rectBounding)
{
// find the text position
wxCoord widthText, heightText, heightLine;
GetMultiLineTextExtent(text, &widthText, &heightText, &heightLine);
wxCoord width, height;
if ( bitmap.Ok() )
{
width = widthText + bitmap.GetWidth();
height = bitmap.GetHeight();
}
else // no bitmap
{
width = widthText;
height = heightText;
}
wxCoord x, y;
if ( alignment & wxALIGN_RIGHT )
{
x = rect.GetRight() - width;
}
else if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
{
x = (rect.GetLeft() + rect.GetRight() + 1 - width) / 2;
}
else // alignment & wxALIGN_LEFT
{
x = rect.GetLeft();
}
if ( alignment & wxALIGN_BOTTOM )
{
y = rect.GetBottom() - height;
}
else if ( alignment & wxALIGN_CENTRE_VERTICAL )
{
y = (rect.GetTop() + rect.GetBottom() + 1 - height) / 2;
}
else // alignment & wxALIGN_TOP
{
y = rect.GetTop();
}
// draw the bitmap first
wxCoord x0 = x,
y0 = y,
width0 = width;
if ( bitmap.Ok() )
{
DrawBitmap(bitmap, x, y, TRUE /* use mask */);
wxCoord offset = bitmap.GetWidth() + 4;
x += offset;
width -= offset;
y += (height - heightText) / 2;
}
// we will draw the underscore under the accel char later
wxCoord startUnderscore = 0,
endUnderscore = 0,
yUnderscore = 0;
// split the string into lines and draw each of them separately
wxString curLine;
for ( const wxChar *pc = text; ; pc++ )
{
if ( *pc == _T('\n') || *pc == _T('\0') )
{
int xRealStart = x; // init it here to avoid compielr warnings
if ( !curLine.empty() )
{
// NB: can't test for !(alignment & wxALIGN_LEFT) because
// wxALIGN_LEFT is 0
if ( alignment & (wxALIGN_RIGHT | wxALIGN_CENTRE_HORIZONTAL) )
{
wxCoord widthLine;
GetTextExtent(curLine, &widthLine, NULL);
if ( alignment & wxALIGN_RIGHT )
{
xRealStart += width - widthLine;
}
else // if ( alignment & wxALIGN_CENTRE_HORIZONTAL )
{
xRealStart += (width - widthLine) / 2;
}
}
//else: left aligned, nothing to do
DrawText(curLine, xRealStart, y);
}
y += heightLine;
// do we have underscore in this line? we can check yUnderscore
// because it is set below to just y + heightLine if we do
if ( y == yUnderscore )
{
// adjust the horz positions to account for the shift
startUnderscore += xRealStart;
endUnderscore += xRealStart;
}
if ( *pc == _T('\0') )
break;
curLine.clear();
}
else // not end of line
{
if ( pc - text.c_str() == indexAccel )
{
// remeber to draw underscore here
GetTextExtent(curLine, &startUnderscore, NULL);
curLine += *pc;
GetTextExtent(curLine, &endUnderscore, NULL);
yUnderscore = y + heightLine;
}
else
{
curLine += *pc;
}
}
}
// draw the underscore if found
if ( startUnderscore != endUnderscore )
{
// it should be of the same colour as text
SetPen(wxPen(GetTextForeground(), 0, wxSOLID));
yUnderscore--;
DrawLine(startUnderscore, yUnderscore, endUnderscore, yUnderscore);
}
// return bounding rect if requested
if ( rectBounding )
{
*rectBounding = wxRect(x, y - heightText, widthText, heightText);
}
CalcBoundingBox(x0, y0);
CalcBoundingBox(x0 + width0, y0 + height);
}
/*
Notes for wxWindows DrawEllipticArcRot(...)
wxDCBase::DrawEllipticArcRot(...) draws a rotated elliptic arc or an ellipse.
It uses wxDCBase::CalculateEllipticPoints(...) and wxDCBase::Rotate(...),
which are also new.
All methods are generic, so they can be implemented in wxDCBase.
DoDrawEllipticArcRot(...) is virtual, so it can be called from deeper
methods like (WinCE) wxDC::DoDrawArc(...).
CalculateEllipticPoints(...) fills a given list of wxPoints with some points
of an elliptic arc. The algorithm is pixel-based: In every row (in flat
parts) or every column (in steep parts) only one pixel is calculated.
Trigonometric calculation (sin, cos, tan, atan) is only done if the
starting angle is not equal to the ending angle. The calculation of the
pixels is done using simple arithmetic only and should perform not too
bad even on devices without floating point processor. I didn't test this yet.
Rotate(...) rotates a list of point pixel-based, you will see rounding errors.
For instance: an ellipse rotated 180 degrees is drawn
slightly different from the original.
The points are then moved to an array and used to draw a polyline and/or polygon
(with center added, the pie).
The result looks quite similar to the native ellipse, only e few pixels differ.
The performance on a desktop system (Athlon 1800, WinXP) is about 7 times
slower as DrawEllipse(...), which calls the native API.
An rotated ellipse outside the clipping region takes nearly the same time,
while an native ellipse outside takes nearly no time to draw.
If you draw an arc with this new method, you will see the starting and ending angles
are calculated properly.
If you use DrawEllipticArc(...), you will see they are only correct for circles
and not properly calculated for ellipses.
Peter Lenhard
p.lenhard@t-online.de
*/
#ifdef __WXWINCE__
void wxDCBase::DoDrawEllipticArcRot( wxCoord x, wxCoord y,
wxCoord w, wxCoord h,
double sa, double ea, double angle )
{
wxList list;
CalculateEllipticPoints( &list, x, y, w, h, sa, ea );
Rotate( &list, angle, wxPoint( x+w/2, y+h/2 ) );
// Add center (for polygon/pie)
list.Append( (wxObject*) new wxPoint( x+w/2, y+h/2 ) );
// copy list into array and delete list elements
int n = list.Number();
wxPoint *points = new wxPoint[n];
int i = 0;
wxNode* node = 0;
for ( node = list.First(); node; node = node->Next(), i++ )
{
wxPoint *point = (wxPoint *)node->Data();
points[i].x = point->x;
points[i].y = point->y;
delete point;
}
// first draw the pie without pen, if necessary
if( GetBrush() != *wxTRANSPARENT_BRUSH )
{
wxPen tempPen( GetPen() );
SetPen( *wxTRANSPARENT_PEN );
DoDrawPolygon( n, points, 0, 0 );
SetPen( tempPen );
}
// then draw the arc without brush, if necessary
if( GetPen() != *wxTRANSPARENT_PEN )
{
// without center
DoDrawLines( n-1, points, 0, 0 );
}
delete [] points;
} // DrawEllipticArcRot
void wxDCBase::Rotate( wxList* points, double angle, wxPoint center )
{
if( angle != 0.0 )
{
double pi(3.1415926536);
double dSinA = -sin(angle*2.0*pi/360.0);
double dCosA = cos(angle*2.0*pi/360.0);
for ( wxNode* node = points->First(); node; node = node->Next() )
{
wxPoint* point = (wxPoint*)node->Data();
// transform coordinates, if necessary
if( center.x ) point->x -= center.x;
if( center.y ) point->y -= center.y;
// calculate rotation, rounding simply by implicit cast to integer
int xTemp = point->x * dCosA - point->y * dSinA;
point->y = point->x * dSinA + point->y * dCosA;
point->x = xTemp;
// back transform coordinates, if necessary
if( center.x ) point->x += center.x;
if( center.y ) point->y += center.y;
}
}
}
void wxDCBase::CalculateEllipticPoints( wxList* points,
wxCoord xStart, wxCoord yStart,
wxCoord w, wxCoord h,
double sa, double ea )
{
double pi = 3.1415926535;
double sar = 0;
double ear = 0;
int xsa = 0;
int ysa = 0;
int xea = 0;
int yea = 0;
int sq = 0;
int eq = 0;
bool bUseAngles = false;
if( w<0 ) w = -w;
if( h<0 ) h = -h;
// half-axes
wxCoord a = w/2;
wxCoord b = h/2;
// decrement 1 pixel if ellipse is smaller than 2*a, 2*b
int decrX = 0;
if( 2*a == w ) decrX = 1;
int decrY = 0;
if( 2*b == h ) decrY = 1;
// center
wxCoord xCenter = xStart + a;
wxCoord yCenter = yStart + b;
// calculate data for start and end, if necessary
if( sa != ea )
{
bUseAngles = true;
// normalisation of angles
while( sa<0 ) sa += 360;
while( ea<0 ) ea += 360;
while( sa>=360 ) sa -= 360;
while( ea>=360 ) ea -= 360;
// calculate quadrant numbers
if( sa > 270 ) sq = 3;
else if( sa > 180 ) sq = 2;
else if( sa > 90 ) sq = 1;
if( ea > 270 ) eq = 3;
else if( ea > 180 ) eq = 2;
else if( ea > 90 ) eq = 1;
sar = sa * pi / 180.0;
ear = ea * pi / 180.0;
// correct angle circle -> ellipse
sar = atan( -a/(double)b * tan( sar ) );
if ( sq == 1 || sq == 2 ) sar += pi;
ear = atan( -a/(double)b * tan( ear ) );
if ( eq == 1 || eq == 2 ) ear += pi;
// coordinates of points
xsa = xCenter + a * cos( sar );
if( sq == 0 || sq == 3 ) xsa -= decrX;
ysa = yCenter + b * sin( sar );
if( sq == 2 || sq == 3 ) ysa -= decrY;
xea = xCenter + a * cos( ear );
if( eq == 0 || eq == 3 ) xea -= decrX;
yea = yCenter + b * sin( ear );
if( eq == 2 || eq == 3 ) yea -= decrY;
} // if iUseAngles
// calculate c1 = b^2, c2 = b^2/a^2 with a = w/2, b = h/2
double c1 = b * b;
double c2 = 2.0 / w;
c2 *= c2;
c2 *= c1;
wxCoord x = 0;
wxCoord y = b;
long x2 = 1;
long y2 = y*y;
long y2_old = 0;
long y_old = 0;
// Lists for quadrant 1 to 4
wxList pointsarray[4];
// Calculate points for first quadrant and set in all quadrants
for( x = 0; x <= a; ++x )
{
x2 = x2+x+x-1;
y2_old = y2;
y_old = y;
bool bNewPoint = false;
while( y2 > c1 - c2 * x2 && y > 0 )
{
bNewPoint = true;
y2 = y2-y-y+1;
--y;
}
// old y now to big: set point with old y, old x
if( bNewPoint && x>1)
{
int x1 = x - 1;
// remove points on the same line
pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter - y_old ) );
pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - x1, yCenter - y_old ) );
pointsarray[2].Insert( (wxObject*) new wxPoint( xCenter - x1, yCenter + y_old - decrY ) );
pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + x1 - decrX, yCenter + y_old - decrY ) );
} // set point
} // calculate point
// Starting and/or ending points for the quadrants, first quadrant gets both.
pointsarray[0].Insert( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) );
pointsarray[0].Append( (wxObject*) new wxPoint( xCenter, yCenter - b ) );
pointsarray[1].Append( (wxObject*) new wxPoint( xCenter - a, yCenter ) );
pointsarray[2].Append( (wxObject*) new wxPoint( xCenter, yCenter + b - decrY ) );
pointsarray[3].Append( (wxObject*) new wxPoint( xCenter + a - decrX, yCenter ) );
// copy quadrants in original list
if( bUseAngles )
{
// Copy the right part of the points in the lists
// and delete the wxPoints, because they do not leave this method.
points->Append( (wxObject*) new wxPoint( xsa, ysa ) );
int q = sq;
bool bStarted = false;
bool bReady = false;
bool bForceTurn = ( sq == eq && sa > ea );
while( !bReady )
{
for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
{
// once: go to starting point in start quadrant
if( !bStarted &&
(
( (wxPoint*) node->Data() )->x < xsa+1 && q <= 1
||
( (wxPoint*) node->Data() )->x > xsa-1 && q >= 2
)
)
{
bStarted = true;
}
// copy point, if not at ending point
if( bStarted )
{
if( q != eq || bForceTurn
||
( (wxPoint*) node->Data() )->x > xea+1 && q <= 1
||
( (wxPoint*) node->Data() )->x < xea-1 && q >= 2
)
{
// copy point
wxPoint* pPoint = new wxPoint( *((wxPoint*) node->Data() ) );
points->Append( (wxObject*) pPoint );
}
else if( q == eq && !bForceTurn || ( (wxPoint*) node->Data() )->x == xea)
{
bReady = true;
}
}
} // for node
++q;
if( q > 3 ) q = 0;
bForceTurn = false;
bStarted = true;
} // while not bReady
points->Append( (wxObject*) new wxPoint( xea, yea ) );
// delete points
for( q = 0; q < 4; ++q )
{
for( wxNode *node = pointsarray[q].First(); node; node = node->Next() )
{
wxPoint *p = (wxPoint *)node->Data();
delete p;
}
}
}
else
{
// copy whole ellipse, wxPoints will be deleted outside
for( wxNode *node = pointsarray[0].First(); node; node = node->Next() )
{
wxObject *p = node->Data();
points->Append( p );
}
for( node = pointsarray[1].First(); node; node = node->Next() )
{
wxObject *p = node->Data();
points->Append( p );
}
for( node = pointsarray[2].First(); node; node = node->Next() )
{
wxObject *p = node->Data();
points->Append( p );
}
for( node = pointsarray[3].First(); node; node = node->Next() )
{
wxObject *p = node->Data();
points->Append( p );
}
} // not iUseAngles
} // CalculateEllipticPoints
#endif
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