Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/src/fl_vertex.cxx b/common/fltk/src/fl_vertex.cxx
new file mode 100644
index 0000000..756436d
--- /dev/null
+++ b/common/fltk/src/fl_vertex.cxx
@@ -0,0 +1,286 @@
+//
+// "$Id: fl_vertex.cxx 8621 2011-04-23 15:46:30Z AlbrechtS $"
+//
+// Portable drawing routines for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2011 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+/**
+ \file fl_vertex.cxx
+ \brief Portable drawing code for drawing arbitrary shapes with
+ simple 2D transformations.
+*/
+
+// Portable drawing code for drawing arbitrary shapes with
+// simple 2D transformations. See also fl_arc.cxx
+
+// matt: the Quartz implementation purposely doesn't use the Quartz matrix
+// operations for reasons of compatibility and maintainability
+
+#include <config.h>
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#include <FL/Fl.H>
+#include <FL/math.h>
+#include <stdlib.h>
+
+void Fl_Graphics_Driver::push_matrix() {
+ if (sptr==matrix_stack_size)
+ Fl::error("fl_push_matrix(): matrix stack overflow.");
+ else
+ stack[sptr++] = m;
+}
+
+void Fl_Graphics_Driver::pop_matrix() {
+ if (sptr==0)
+ Fl::error("fl_pop_matrix(): matrix stack underflow.");
+ else
+ m = stack[--sptr];
+}
+
+void Fl_Graphics_Driver::mult_matrix(double a, double b, double c, double d, double x, double y) {
+ matrix o;
+ o.a = a*m.a + b*m.c;
+ o.b = a*m.b + b*m.d;
+ o.c = c*m.a + d*m.c;
+ o.d = c*m.b + d*m.d;
+ o.x = x*m.a + y*m.c + m.x;
+ o.y = x*m.b + y*m.d + m.y;
+ m = o;
+}
+
+void Fl_Graphics_Driver::rotate(double d) {
+ if (d) {
+ double s, c;
+ if (d == 0) {s = 0; c = 1;}
+ else if (d == 90) {s = 1; c = 0;}
+ else if (d == 180) {s = 0; c = -1;}
+ else if (d == 270 || d == -90) {s = -1; c = 0;}
+ else {s = sin(d*M_PI/180); c = cos(d*M_PI/180);}
+ mult_matrix(c,-s,s,c,0,0);
+ }
+}
+
+void Fl_Graphics_Driver::begin_points() {n = 0; what = POINT_;}
+
+void Fl_Graphics_Driver::begin_line() {n = 0; what = LINE;}
+
+void Fl_Graphics_Driver::begin_loop() {n = 0; what = LOOP;}
+
+void Fl_Graphics_Driver::begin_polygon() {n = 0; what = POLYGON;}
+
+double Fl_Graphics_Driver::transform_x(double x, double y) {return x*m.a + y*m.c + m.x;}
+
+double Fl_Graphics_Driver::transform_y(double x, double y) {return x*m.b + y*m.d + m.y;}
+
+double Fl_Graphics_Driver::transform_dx(double x, double y) {return x*m.a + y*m.c;}
+
+double Fl_Graphics_Driver::transform_dy(double x, double y) {return x*m.b + y*m.d;}
+
+void Fl_Graphics_Driver::transformed_vertex0(COORD_T x, COORD_T y) {
+ if (!n || x != p[n-1].x || y != p[n-1].y) {
+ if (n >= p_size) {
+ p_size = p ? 2*p_size : 16;
+ p = (XPOINT*)realloc((void*)p, p_size*sizeof(*p));
+ }
+ p[n].x = x;
+ p[n].y = y;
+ n++;
+ }
+}
+
+void Fl_Graphics_Driver::transformed_vertex(double xf, double yf) {
+#ifdef __APPLE_QUARTZ__
+ transformed_vertex0(COORD_T(xf), COORD_T(yf));
+#else
+ transformed_vertex0(COORD_T(rint(xf)), COORD_T(rint(yf)));
+#endif
+}
+
+void Fl_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_Graphics_Driver::end_points() {
+#if defined(USE_X11)
+ if (n>1) XDrawPoints(fl_display, fl_window, fl_gc, p, n, 0);
+#elif defined(WIN32)
+ for (int i=0; i<n; i++) SetPixel(fl_gc, p[i].x, p[i].y, fl_RGB());
+#elif defined(__APPLE_QUARTZ__)
+ if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, true);
+ for (int i=0; i<n; i++) {
+ CGContextMoveToPoint(fl_gc, p[i].x, p[i].y);
+ CGContextAddLineToPoint(fl_gc, p[i].x, p[i].y);
+ CGContextStrokePath(fl_gc);
+ }
+ if (fl_quartz_line_width_ > 1.5f) CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+void Fl_Graphics_Driver::end_line() {
+ if (n < 2) {
+ fl_end_points();
+ return;
+ }
+#if defined(USE_X11)
+ if (n>1) XDrawLines(fl_display, fl_window, fl_gc, p, n, 0);
+#elif defined(WIN32)
+ if (n>1) Polyline(fl_gc, p, n);
+#elif defined(__APPLE_QUARTZ__)
+ if (n<=1) return;
+ CGContextSetShouldAntialias(fl_gc, true);
+ CGContextMoveToPoint(fl_gc, p[0].x, p[0].y);
+ for (int i=1; i<n; i++)
+ CGContextAddLineToPoint(fl_gc, p[i].x, p[i].y);
+ CGContextStrokePath(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+void Fl_Graphics_Driver::fixloop() { // remove equal points from closed path
+ while (n>2 && p[n-1].x == p[0].x && p[n-1].y == p[0].y) n--;
+}
+
+void Fl_Graphics_Driver::end_loop() {
+ fixloop();
+ if (n>2) fl_transformed_vertex((COORD_T)p[0].x, (COORD_T)p[0].y);
+ fl_end_line();
+}
+
+void Fl_Graphics_Driver::end_polygon() {
+ fixloop();
+ if (n < 3) {
+ fl_end_line();
+ return;
+ }
+#if defined(USE_X11)
+ if (n>2) XFillPolygon(fl_display, fl_window, fl_gc, p, n, Convex, 0);
+#elif defined(WIN32)
+ if (n>2) {
+ SelectObject(fl_gc, fl_brush());
+ Polygon(fl_gc, p, n);
+ }
+#elif defined(__APPLE_QUARTZ__)
+ if (n<=1) return;
+ CGContextSetShouldAntialias(fl_gc, true);
+ CGContextMoveToPoint(fl_gc, p[0].x, p[0].y);
+ for (int i=1; i<n; i++)
+ CGContextAddLineToPoint(fl_gc, p[i].x, p[i].y);
+ CGContextClosePath(fl_gc);
+ CGContextFillPath(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+void Fl_Graphics_Driver::begin_complex_polygon() {
+ fl_begin_polygon();
+ gap_ = 0;
+#if defined(WIN32)
+ numcount = 0;
+#endif
+}
+
+void Fl_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) {
+ fl_transformed_vertex((COORD_T)p[gap_].x, (COORD_T)p[gap_].y);
+#if defined(WIN32)
+ counts[numcount++] = n-gap_;
+#endif
+ gap_ = n;
+ } else {
+ n = gap_;
+ }
+}
+
+void Fl_Graphics_Driver::end_complex_polygon() {
+ fl_gap();
+ if (n < 3) {
+ fl_end_line();
+ return;
+ }
+#if defined(USE_X11)
+ if (n>2) XFillPolygon(fl_display, fl_window, fl_gc, p, n, 0, 0);
+#elif defined(WIN32)
+ if (n>2) {
+ SelectObject(fl_gc, fl_brush());
+ PolyPolygon(fl_gc, p, counts, numcount);
+ }
+#elif defined(__APPLE_QUARTZ__)
+ if (n<=1) return;
+ CGContextSetShouldAntialias(fl_gc, true);
+ CGContextMoveToPoint(fl_gc, p[0].x, p[0].y);
+ for (int i=1; i<n; i++)
+ CGContextAddLineToPoint(fl_gc, p[i].x, p[i].y);
+ CGContextClosePath(fl_gc);
+ CGContextFillPath(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+// 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_Graphics_Driver::circle(double x, double y,double r) {
+ double xt = fl_transform_x(x,y);
+ double yt = fl_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;
+
+#if defined(USE_X11)
+ (what == POLYGON ? XFillArc : XDrawArc)
+ (fl_display, fl_window, fl_gc, llx, lly, w, h, 0, 360*64);
+#elif defined(WIN32)
+ if (what==POLYGON) {
+ SelectObject(fl_gc, fl_brush());
+ Pie(fl_gc, llx, lly, llx+w, lly+h, 0,0, 0,0);
+ } else
+ Arc(fl_gc, llx, lly, llx+w, lly+h, 0,0, 0,0);
+#elif defined(__APPLE_QUARTZ__)
+ // Quartz warning: circle won't scale to current matrix!
+ // Last argument must be 0 (counter-clockwise) or it draws nothing under __LP64__ !!!!
+ CGContextSetShouldAntialias(fl_gc, true);
+ CGContextAddArc(fl_gc, xt, yt, (w+h)*0.25f, 0, 2.0f*M_PI, 0);
+ (what == POLYGON ? CGContextFillPath : CGContextStrokePath)(fl_gc);
+ CGContextSetShouldAntialias(fl_gc, false);
+#else
+# error unsupported platform
+#endif
+}
+
+//
+// End of "$Id: fl_vertex.cxx 8621 2011-04-23 15:46:30Z AlbrechtS $".
+//