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//
// Fl_Scroll test program for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 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:
//
// https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
// https://www.fltk.org/bugs.php
//
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Scroll.H>
#include <FL/Fl_Light_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() FL_OVERRIDE;
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((uchar)((fl_intptr_t)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((uchar)((fl_intptr_t)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]; snprintf(buf, 20,"%d",n++);
Fl_Button* b = new Fl_Button(x*75,y*25+(y>=8?5*75:0),75,25);
b->copy_label(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_Light_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();
}
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