Preliminary commit of porting Xlib drivers to the new naming scheme

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11053 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 116 insertions, 0 deletions

diff --git a/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_vertex.cxx b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_vertex.cxx
new file mode 100644
index 000000000..4c559ad8c
--- /dev/null
+++ b/src/drivers/Xlib/Fl_Xlib_Graphics_Driver_vertex.cxx
@@ -0,0 +1,116 @@
+//
+// "$Id$"
+//
+// Portable drawing routines 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_XLIB_VERTEX_CXX
+#define FL_CFG_GFX_XLIB_VERTEX_CXX
+
+/**
+ \file xlib_vertex.cxx
+ \brief  Portable drawing code for drawing arbitrary shapes with
+ simple 2D transformations, implemented for X11 Xlib.
+ */
+
+#include "Fl_Xlib_Graphics_Driver.h"
+
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#include <FL/math.h>
+
+
+void Fl_Xlib_Graphics_Driver::transformed_vertex(double xf, double yf) {
+  transformed_vertex0(COORD_T(rint(xf)), COORD_T(rint(yf)));
+}
+
+void Fl_Xlib_Graphics_Driver::vertex(double x,double y) {
+  transformed_vertex0(COORD_T(x*m.a + y*m.c + m.x), COORD_T(x*m.b + y*m.d + m.y));
+}
+
+void Fl_Xlib_Graphics_Driver::end_points() {
+  if (n>1) XDrawPoints(fl_display, fl_window, fl_gc, p, n, 0);
+}
+
+void Fl_Xlib_Graphics_Driver::end_line() {
+  if (n < 2) {
+    end_points();
+    return;
+  }
+  if (n>1) XDrawLines(fl_display, fl_window, fl_gc, p, n, 0);
+}
+
+void Fl_Xlib_Graphics_Driver::end_loop() {
+  fixloop();
+  if (n>2) transformed_vertex((COORD_T)p[0].x, (COORD_T)p[0].y);
+  end_line();
+}
+
+void Fl_Xlib_Graphics_Driver::end_polygon() {
+  fixloop();
+  if (n < 3) {
+    end_line();
+    return;
+  }
+  if (n>2) XFillPolygon(fl_display, fl_window, fl_gc, p, n, Convex, 0);
+}
+
+void Fl_Xlib_Graphics_Driver::begin_complex_polygon() {
+  begin_polygon();
+  gap_ = 0;
+}
+
+void Fl_Xlib_Graphics_Driver::gap() {
+  while (n>gap_+2 && p[n-1].x == p[gap_].x && p[n-1].y == p[gap_].y) n--;
+  if (n > gap_+2) {
+    transformed_vertex((COORD_T)p[gap_].x, (COORD_T)p[gap_].y);
+    gap_ = n;
+  } else {
+    n = gap_;
+  }
+}
+
+void Fl_Xlib_Graphics_Driver::end_complex_polygon() {
+  gap();
+  if (n < 3) {
+    end_line();
+    return;
+  }
+  if (n>2) XFillPolygon(fl_display, fl_window, fl_gc, p, n, 0, 0);
+}
+
+// shortcut the closed circles so they use XDrawArc:
+// warning: these do not draw rotated ellipses correctly!
+// See fl_arc.c for portable version.
+
+void Fl_Xlib_Graphics_Driver::circle(double x, double y,double r) {
+  double xt = transform_x(x,y);
+  double yt = transform_y(x,y);
+  double rx = r * (m.c ? sqrt(m.a*m.a+m.c*m.c) : fabs(m.a));
+  double ry = r * (m.b ? sqrt(m.b*m.b+m.d*m.d) : fabs(m.d));
+  int llx = (int)rint(xt-rx);
+  int w = (int)rint(xt+rx)-llx;
+  int lly = (int)rint(yt-ry);
+  int h = (int)rint(yt+ry)-lly;
+
+  (what == POLYGON ? XFillArc : XDrawArc)
+    (fl_display, fl_window, fl_gc, llx, lly, w, h, 0, 360*64);
+}
+
+#endif // FL_CFG_GFX_XLIB_VERTEX_CXX
+
+//
+// End of "$Id$".
+//