//// "$Id: scroll.cxx,v 1.1.1.1 2003/08/07 21:18:42 jasonk Exp $"//// Fl_Scroll test program for the Fast Light Tool Kit (FLTK).//// Copyright 1998-1999 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 to "fltk-bugs@easysw.com".//#include <FL/Fl.H>#include <FL/Fl_Double_Window.H>#include <FL/Fl_Scroll.H>#include <FL/Fl_Toggle_Button.H>#include <FL/Fl_Choice.H>#include <FL/Fl_Box.H>#include <string.h>#include <stdio.h>#include <FL/fl_draw.H>#include <FL/math.h>class Drawing : public Fl_Widget {  void draw();public:  Drawing(int X,int Y,int W,int H,const char* L) : Fl_Widget(X,Y,W,H,L) {    align(FL_ALIGN_TOP);    box(FL_FLAT_BOX);    color(FL_WHITE);  }};void Drawing::draw() {  draw_box();  fl_push_matrix();  fl_translate(x()+w()/2, y()+h()/2);  fl_scale(w()/2, h()/2);  fl_color(FL_BLACK);  for (int i = 0; i < 20; i++) {    for (int j = i+1; j < 20; j++) {      fl_begin_line();      fl_vertex(cos(M_PI*i/10+.1), sin(M_PI*i/10+.1));      fl_vertex(cos(M_PI*j/10+.1), sin(M_PI*j/10+.1));      fl_end_line();    }  }  fl_pop_matrix();}Fl_Scroll* thescroll;void box_cb(Fl_Widget* o, void*) {  thescroll->box(((Fl_Button*)o)->value() ? FL_DOWN_FRAME : FL_NO_BOX);  thescroll->redraw();}void type_cb(Fl_Widget*, void* v) {  thescroll->type(int(v));  thescroll->redraw();}Fl_Menu_Item choices[] = {  {"0", 0, type_cb, (void*)0},  {"HORIZONTAL", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL},  {"VERTICAL", 0, type_cb, (void*)Fl_Scroll::VERTICAL},  {"BOTH", 0, type_cb, (void*)Fl_Scroll::BOTH},  {"HORIZONTAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::HORIZONTAL_ALWAYS},  {"VERTICAL_ALWAYS", 0, type_cb, (void*)Fl_Scroll::VERTICAL_ALWAYS},  {"BOTH_ALWAYS", 0, type_cb, (void*)Fl_Scroll::BOTH_ALWAYS},  {0}};void align_cb(Fl_Widget*, void* v) {  thescroll->scrollbar.align(int(v));  thescroll->redraw();}Fl_Menu_Item align_choices[] = {  {"left+top", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_TOP)},  {"left+bottom", 0, align_cb, (void*)(FL_ALIGN_LEFT+FL_ALIGN_BOTTOM)},  {"right+top", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_TOP)},  {"right+bottom", 0, align_cb, (void*)(FL_ALIGN_RIGHT+FL_ALIGN_BOTTOM)},  {0}};int main(int argc, char** argv) {  Fl_Window window(5*75,400);  window.box(FL_NO_BOX);  Fl_Scroll scroll(0,0,5*75,300);  int n = 0;  for (int y=0; y<16; y++) for (int x=0; x<5; x++) {    char buf[20]; sprintf(buf,"%d",n++);    Fl_Button* b = new Fl_Button(x*75,y*25+(y>=8?5*75:0),75,25,strdup(buf));    b->color(n);    b->labelcolor(FL_WHITE);  }  Drawing drawing(0,8*25,5*75,5*75,0);  scroll.end();  window.resizable(scroll);  Fl_Box box(0,300,5*75,window.h()-300); // gray area below the scroll  box.box(FL_FLAT_BOX);  Fl_Toggle_Button but1(150, 310, 200, 25, "box");  but1.callback(box_cb);    Fl_Choice choice(150, 335, 200, 25, "type():");  choice.menu(choices);  choice.value(3);  Fl_Choice achoice(150, 360, 200, 25, "scrollbar.align():");  achoice.menu(align_choices);  achoice.value(3);  thescroll = &scroll;  //scroll.box(FL_DOWN_BOX);  //scroll.type(Fl_Scroll::VERTICAL);  window.end();  window.show(argc,argv);  return Fl::run();}//// End of "$Id: scroll.cxx,v 1.1.1.1 2003/08/07 21:18:42 jasonk Exp $".//