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_Scrollbar.cxx b/common/fltk/src/Fl_Scrollbar.cxx
new file mode 100644
index 0000000..263e664
--- /dev/null
+++ b/common/fltk/src/Fl_Scrollbar.cxx
@@ -0,0 +1,292 @@
+//
+// "$Id: Fl_Scrollbar.cxx 7903 2010-11-28 21:06:39Z matt $"
+//
+// Scroll bar 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
+//
+
+
+#include <FL/Fl.H>
+#include <FL/Fl_Scrollbar.H>
+#include <FL/fl_draw.H>
+#include <math.h>
+#include "flstring.h"
+
+#define INITIALREPEAT .5
+#define REPEAT .05
+
+void Fl_Scrollbar::increment_cb() {
+ char inv = maximum()<minimum();
+ int ls = inv ? -linesize_ : linesize_;
+ int i;
+ switch (pushed_) {
+ case 1: // clicked on arrow left
+ i = -ls;
+ break;
+ default: // clicked on arrow right
+ i = ls;
+ break;
+ case 5: // clicked into the box next to the slider on the left
+ i = -(int((maximum()-minimum())*slider_size()/(1.0-slider_size())));
+ if (inv) {
+ if (i<-ls) i = -ls;
+ } else {
+ if (i>-ls) i = -ls; // err
+ }
+ break;
+ case 6: // clicked into the box next to the slider on the right
+ i = (int((maximum()-minimum())*slider_size()/(1.0-slider_size())));
+ if (inv) {
+ if (i>ls) i = ls;
+ } else {
+ if (i<ls) i = ls; // err
+ }
+ break;
+ }
+ handle_drag(clamp(value() + i));
+}
+
+void Fl_Scrollbar::timeout_cb(void* v) {
+ Fl_Scrollbar* s = (Fl_Scrollbar*)v;
+ s->increment_cb();
+ Fl::add_timeout(REPEAT, timeout_cb, s);
+}
+
+int Fl_Scrollbar::handle(int event) {
+ // area of scrollbar:
+ int area;
+ int X=x(); int Y=y(); int W=w(); int H=h();
+
+ // adjust slider area to be inside the arrow buttons:
+ if (horizontal()) {
+ if (W >= 3*H) {X += H; W -= 2*H;}
+ } else {
+ if (H >= 3*W) {Y += W; H -= 2*W;}
+ }
+
+ // which widget part is highlighted?
+ int relx;
+ int ww;
+ if (horizontal()) {
+ relx = Fl::event_x()-X;
+ ww = W;
+ } else {
+ relx = Fl::event_y()-Y;
+ ww = H;
+ }
+ if (relx < 0) area = 1;
+ else if (relx >= ww) area = 2;
+ else {
+ int S = int(slider_size()*ww+.5);
+ int T = (horizontal() ? H : W)/2+1;
+ if (type()==FL_VERT_NICE_SLIDER || type()==FL_HOR_NICE_SLIDER) T += 4;
+ if (S < T) S = T;
+ double val =
+ (maximum()-minimum()) ? (value()-minimum())/(maximum()-minimum()) : 0.5;
+ int sliderx;
+ if (val >= 1.0) sliderx = ww-S;
+ else if (val <= 0.0) sliderx = 0;
+ else sliderx = int(val*(ww-S)+.5);
+ if (Fl::event_button() == FL_MIDDLE_MOUSE) area = 8;
+ else if (relx < sliderx) area = 5;
+ else if (relx >= sliderx+S) area = 6;
+ else area = 8;
+ }
+
+ switch (event) {
+ case FL_ENTER:
+ case FL_LEAVE:
+ return 1;
+ case FL_RELEASE:
+ damage(FL_DAMAGE_ALL);
+ if (pushed_) {
+ Fl::remove_timeout(timeout_cb, this);
+ pushed_ = 0;
+ }
+ handle_release();
+ return 1;
+ case FL_PUSH:
+ if (pushed_) return 1;
+ if (area != 8) pushed_ = area;
+ if (pushed_) {
+ handle_push();
+ Fl::add_timeout(INITIALREPEAT, timeout_cb, this);
+ increment_cb();
+ damage(FL_DAMAGE_ALL);
+ return 1;
+ }
+ return Fl_Slider::handle(event, X,Y,W,H);
+ case FL_DRAG:
+ if (pushed_) return 1;
+ return Fl_Slider::handle(event, X,Y,W,H);
+ case FL_MOUSEWHEEL :
+ if (horizontal()) {
+ if (Fl::e_dx==0) return 0;
+ int ls = maximum()>=minimum() ? linesize_ : -linesize_;
+ handle_drag(clamp(value() + ls * Fl::e_dx));
+ return 1;
+ } else {
+ if (Fl::e_dy==0) return 0;
+ int ls = maximum()>=minimum() ? linesize_ : -linesize_;
+ handle_drag(clamp(value() + ls * Fl::e_dy));
+ return 1;
+ }
+ case FL_SHORTCUT:
+ case FL_KEYBOARD: {
+ int v = value();
+ int ls = maximum()>=minimum() ? linesize_ : -linesize_;
+ if (horizontal()) {
+ switch (Fl::event_key()) {
+ case FL_Left:
+ v -= ls;
+ break;
+ case FL_Right:
+ v += ls;
+ break;
+ default:
+ return 0;
+ }
+ } else { // vertical
+ switch (Fl::event_key()) {
+ case FL_Up:
+ v -= ls;
+ break;
+ case FL_Down:
+ v += ls;
+ break;
+ case FL_Page_Up:
+ if (slider_size() >= 1.0) return 0;
+ v -= int((maximum()-minimum())*slider_size()/(1.0-slider_size()));
+ v += ls;
+ break;
+ case FL_Page_Down:
+ if (slider_size() >= 1.0) return 0;
+ v += int((maximum()-minimum())*slider_size()/(1.0-slider_size()));
+ v -= ls;
+ break;
+ case FL_Home:
+ v = int(minimum());
+ break;
+ case FL_End:
+ v = int(maximum());
+ break;
+ default:
+ return 0;
+ }
+ }
+ v = int(clamp(v));
+ if (v != value()) {
+ Fl_Slider::value(v);
+ value_damage();
+ set_changed();
+ do_callback();
+ }
+ return 1;}
+ }
+ return 0;
+}
+
+void Fl_Scrollbar::draw() {
+ if (damage()&FL_DAMAGE_ALL) draw_box();
+ int X = x()+Fl::box_dx(box());
+ int Y = y()+Fl::box_dy(box());
+ int W = w()-Fl::box_dw(box());
+ int H = h()-Fl::box_dh(box());
+ if (horizontal()) {
+ if (W < 3*H) {Fl_Slider::draw(X,Y,W,H); return;}
+ Fl_Slider::draw(X+H,Y,W-2*H,H);
+ if (damage()&FL_DAMAGE_ALL) {
+ draw_box((pushed_==1) ? fl_down(slider()) : slider(),
+ X, Y, H, H, selection_color());
+ draw_box((pushed_==2) ? fl_down(slider()) : slider(),
+ X+W-H, Y, H, H, selection_color());
+ if (active_r())
+ fl_color(labelcolor());
+ else
+ fl_color(fl_inactive(labelcolor()));
+ int w1 = (H-4)/3; if (w1 < 1) w1 = 1;
+ int x1 = X+(H-w1-1)/2;
+ int yy1 = Y+(H-2*w1-1)/2;
+ if (Fl::scheme_ && !strcmp(Fl::scheme_, "gtk+")) {
+ fl_polygon(x1, yy1+w1, x1+w1, yy1+2*w1, x1+w1-1, yy1+w1, x1+w1, yy1);
+ x1 += (W-H);
+ fl_polygon(x1, yy1, x1+1, yy1+w1, x1, yy1+2*w1, x1+w1, yy1+w1);
+ } else {
+ fl_polygon(x1, yy1+w1, x1+w1, yy1+2*w1, x1+w1, yy1);
+ x1 += (W-H);
+ fl_polygon(x1, yy1, x1, yy1+2*w1, x1+w1, yy1+w1);
+ }
+ }
+ } else { // vertical
+ if (H < 3*W) {Fl_Slider::draw(X,Y,W,H); return;}
+ Fl_Slider::draw(X,Y+W,W,H-2*W);
+ if (damage()&FL_DAMAGE_ALL) {
+ draw_box((pushed_==1) ? fl_down(slider()) : slider(),
+ X, Y, W, W, selection_color());
+ draw_box((pushed_==2) ? fl_down(slider()) : slider(),
+ X, Y+H-W, W, W, selection_color());
+ if (active_r())
+ fl_color(labelcolor());
+ else
+ fl_color(fl_inactive(labelcolor()));
+ int w1 = (W-4)/3; if (w1 < 1) w1 = 1;
+ int x1 = X+(W-2*w1-1)/2;
+ int yy1 = Y+(W-w1-1)/2;
+ if (Fl::scheme_ && !strcmp(Fl::scheme_, "gtk+")) {
+ fl_polygon(x1, yy1+w1, x1+w1, yy1+w1-1, x1+2*w1, yy1+w1, x1+w1, yy1);
+ yy1 += H-W;
+ fl_polygon(x1, yy1, x1+w1, yy1+1, x1+w1, yy1+w1);
+ fl_polygon(x1+w1, yy1+1, x1+2*w1, yy1, x1+w1, yy1+w1);
+ } else {
+ fl_polygon(x1, yy1+w1, x1+2*w1, yy1+w1, x1+w1, yy1);
+ yy1 += H-W;
+ fl_polygon(x1, yy1, x1+w1, yy1+w1, x1+2*w1, yy1);
+ }
+ }
+ }
+}
+
+/**
+ Creates a new Fl_Scrollbar widget with given position, size, and label.
+ You need to do type(FL_HORIZONTAL) if you want a horizontal scrollbar.
+*/
+Fl_Scrollbar::Fl_Scrollbar(int X, int Y, int W, int H, const char* L)
+ : Fl_Slider(X, Y, W, H, L) {
+ box(FL_FLAT_BOX);
+ color(FL_DARK2);
+ slider(FL_UP_BOX);
+ linesize_ = 16;
+ pushed_ = 0;
+ step(1);
+}
+
+/** Destroys the Scrollbar. */
+Fl_Scrollbar::~Fl_Scrollbar() {
+ if (pushed_)
+ Fl::remove_timeout(timeout_cb, this);
+}
+
+
+//
+// End of "$Id: Fl_Scrollbar.cxx 7903 2010-11-28 21:06:39Z matt $".
+//