diff options
| author | Matthias Melcher <fltk@matthiasm.com> | 2016-01-26 21:10:49 +0000 |
|---|---|---|
| committer | Matthias Melcher <fltk@matthiasm.com> | 2016-01-26 21:10:49 +0000 |
| commit | 6694780c2d02d645f053fd60864c9ff035296a64 (patch) | |
| tree | fd205fc40c3b1b0aa432bbc1bdbe2c78f3d1c60b /src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx | |
| parent | ac275b89bcd8333dd1b05bfc9f6fc0accd8e065d (diff) | |
Moving GDI/WIN32 files to new directroy structure
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11058 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx')
| -rw-r--r-- | src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx b/src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx new file mode 100644 index 000000000..9a16e14e8 --- /dev/null +++ b/src/drivers/GDI/Fl_GDI_Graphics_Driver_arci.cxx @@ -0,0 +1,64 @@ +// +// "$Id$" +// +// Arc (integer) drawing functions for the Fast Light Tool Kit (FLTK). +// +// Copyright 1998-2016 by Bill Spitzak and others. +// +// This library is free software. Distribution and use rights are outlined in +// the file "COPYING" which should have been included with this file. If this +// file is missing or damaged, see the license at: +// +// http://www.fltk.org/COPYING.php +// +// Please report all bugs and problems on the following page: +// +// http://www.fltk.org/str.php +// + +#ifndef FL_CFG_GFX_GDI_ARCI_CXX +#define FL_CFG_GFX_GDI_ARCI_CXX + +/** + \file gdi_arci.cxx + \brief Utility functions for drawing circles using integers +*/ + +#include "Fl_GDI_Graphics_Driver.h" + +#include <FL/math.h> + +void Fl_GDI_Graphics_Driver::arc(int x,int y,int w,int h,double a1,double a2) { + if (w <= 0 || h <= 0) return; + int xa = x+w/2+int(w*cos(a1/180.0*M_PI)); + int ya = y+h/2-int(h*sin(a1/180.0*M_PI)); + int xb = x+w/2+int(w*cos(a2/180.0*M_PI)); + int yb = y+h/2-int(h*sin(a2/180.0*M_PI)); + if (fabs(a1 - a2) < 90) { + if (xa == xb && ya == yb) SetPixel(fl_gc, xa, ya, fl_RGB()); + else Arc(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb); + } else Arc(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb); +} + +void Fl_GDI_Graphics_Driver::pie(int x,int y,int w,int h,double a1,double a2) { + if (w <= 0 || h <= 0) return; + if (a1 == a2) return; + int xa = x+w/2+int(w*cos(a1/180.0*M_PI)); + int ya = y+h/2-int(h*sin(a1/180.0*M_PI)); + int xb = x+w/2+int(w*cos(a2/180.0*M_PI)); + int yb = y+h/2-int(h*sin(a2/180.0*M_PI)); + SelectObject(fl_gc, fl_brush()); + if (fabs(a1 - a2) < 90) { + if (xa == xb && ya == yb) { + MoveToEx(fl_gc, x+w/2, y+h/2, 0L); + LineTo(fl_gc, xa, ya); + SetPixel(fl_gc, xa, ya, fl_RGB()); + } else Pie(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb); + } else Pie(fl_gc, x, y, x+w, y+h, xa, ya, xb, yb); +} + +#endif // FL_CFG_GFX_GDI_ARCI_CXX + +// +// End of "$Id$". +// |
