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_Positioner.cxx b/common/fltk/src/Fl_Positioner.cxx
new file mode 100644
index 0000000..1a50630
--- /dev/null
+++ b/common/fltk/src/Fl_Positioner.cxx
@@ -0,0 +1,161 @@
+//
+// "$Id: Fl_Positioner.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Positioner widget for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 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
+//
+
+
+// The positioner widget from Forms, gives 2D input
+// Written by: Mark Overmars
+
+#include <FL/Fl.H>
+#include <FL/Fl_Positioner.H>
+#include <FL/fl_draw.H>
+
+static double flinear(double val, double smin, double smax, double gmin, double gmax)
+{
+ if (smin == smax) return gmax;
+ else return gmin + (gmax - gmin) * (val - smin) / (smax - smin);
+}
+
+void Fl_Positioner::draw(int X, int Y, int W, int H) {
+ int x1 = X + 4;
+ int y1 = Y + 4;
+ int w1 = W - 2 * 4;
+ int h1 = H - 2 * 4;
+ int xx = int(flinear(xvalue(), xmin, xmax, x1, x1+w1-1)+.5);
+ int yy = int(flinear(yvalue(), ymin, ymax, y1, y1+h1-1)+.5);
+ draw_box(box(), X, Y, W, H, color());
+ fl_color(selection_color());
+ fl_xyline(x1, yy, x1+w1);
+ fl_yxline(xx, y1, y1+h1);
+}
+
+void Fl_Positioner::draw() {
+ draw(x(), y(), w(), h());
+ draw_label();
+}
+
+/** Returns the current position in x and y.*/
+int Fl_Positioner::value(double X, double Y) {
+ clear_changed();
+ if (X == xvalue_ && Y == yvalue_) return 0;
+ xvalue_ = X; yvalue_ = Y;
+ redraw();
+ return 1;
+}
+
+/** Sets the X axis coordinate.*/
+int Fl_Positioner::xvalue(double X) {
+ return(value(X, yvalue_));
+}
+
+/** Sets the Y axis coordinate.*/
+int Fl_Positioner::yvalue(double Y) {
+ return(value(xvalue_, Y));
+}
+
+int Fl_Positioner::handle(int event, int X, int Y, int W, int H) {
+ switch (event) {
+ case FL_PUSH:
+ case FL_DRAG:
+ case FL_RELEASE: {
+ double x1 = X + 4;
+ double y1 = Y + 4;
+ double w1 = W - 2 * 4;
+ double h1 = H - 2 * 4;
+ double xx = flinear(Fl::event_x(), x1, x1+w1-1.0, xmin, xmax);
+ if (xstep_) xx = int(xx/xstep_+0.5) * xstep_;
+ if (xmin < xmax) {
+ if (xx < xmin) xx = xmin;
+ if (xx > xmax) xx = xmax;
+ } else {
+ if (xx > xmin) xx = xmin;
+ if (xx < xmax) xx = xmax;
+ }
+ double yy = flinear(Fl::event_y(), y1, y1+h1-1.0, ymin, ymax);
+ if (ystep_) yy = int(yy/ystep_+0.5) * ystep_;
+ if (ymin < ymax) {
+ if (yy < ymin) yy = ymin;
+ if (yy > ymax) yy = ymax;
+ } else {
+ if (yy > ymin) yy = ymin;
+ if (yy < ymax) yy = ymax;
+ }
+ if (xx != xvalue_ || yy != yvalue_) {
+ xvalue_ = xx; yvalue_ = yy;
+ set_changed();
+ redraw();
+ } }
+ if (!(when() & FL_WHEN_CHANGED ||
+ (when() & FL_WHEN_RELEASE && event == FL_RELEASE))) return 1;
+ if (changed() || when()&FL_WHEN_NOT_CHANGED) {
+ if (event == FL_RELEASE) clear_changed();
+ do_callback();
+ }
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+int Fl_Positioner::handle(int e) {
+ return handle(e, x(), y(), w(), h());
+}
+
+/**
+ Creates a new Fl_Positioner widget using the given position,
+ size, and label string. The default boxtype is FL_NO_BOX.
+*/
+Fl_Positioner::Fl_Positioner(int X, int Y, int W, int H, const char* l)
+: Fl_Widget(X, Y, W, H, l) {
+ box(FL_DOWN_BOX);
+ selection_color(FL_RED);
+ align(FL_ALIGN_BOTTOM);
+ when(FL_WHEN_CHANGED);
+ xmin = ymin = 0;
+ xmax = ymax = 1;
+ xvalue_ = yvalue_ = .5;
+ xstep_ = ystep_ = 0;
+}
+
+/** Sets the X axis bounds.*/
+void Fl_Positioner::xbounds(double a, double b) {
+ if (a != xmin || b != xmax) {
+ xmin = a; xmax = b;
+ redraw();
+ }
+}
+
+/** Sets the Y axis bounds.*/
+void Fl_Positioner::ybounds(double a, double b) {
+ if (a != ymin || b != ymax) {
+ ymin = a; ymax = b;
+ redraw();
+ }
+}
+
+//
+// End of "$Id: Fl_Positioner.cxx 7903 2010-11-28 21:06:39Z matt $".
+//