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//
// Coordinate demonstration program for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2021 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_Box.H>
#include <FL/Fl_Window.H>
#include "../src/flstring.h" // fl_snprintf()
#include <stdio.h>
class Box : public Fl_Box {
public:
Box(int X, int Y, int W, int H, Fl_Color C, const char* T)
: Fl_Box(X, Y, W, H, T) {
align(FL_ALIGN_INSIDE | FL_ALIGN_CENTER);
box(FL_DOWN_BOX);
labelcolor(C);
labelsize(11);
}
};
class Title : public Fl_Box {
public:
Title(int X, int Y, int W, int H, Fl_Color C, const char* T)
: Fl_Box(X, Y, W, H, T) {
align(FL_ALIGN_INSIDE | FL_ALIGN_CENTER | FL_ALIGN_TOP);
box(FL_NO_BOX);
labelcolor(C);
labelsize(12);
}
};
class MainWindow : public Fl_Window {
public:
MainWindow(int X, int Y, const char* T)
: Fl_Window(X, Y, T) {
Fl_Window* tl_window = new Fl_Window(0, 0, 250, 100);
tl_window->box(FL_ENGRAVED_BOX);
/* Title* tl_title = */ new Title(10, 10, 230, 40, FL_RED,
"Fl_Window TL(0, 0, 250, 100)\nx, y relative to main window");
/* Box* tl_box = */ new Box(25, 50, 200, 40, FL_RED,
"Fl_Box tl(25, 50, 200, 40)\nx, y relative to TL window");
tl_window->end();
Fl_Window* br_window = new Fl_Window(250, 100, 250, 100);
br_window->box(FL_ENGRAVED_BOX);
/* Title* br_title = */ new Title(10, 10, 230, 40, FL_MAGENTA,
"Fl_Window BR(250, 100, 250, 100)\nx, y relative to main window");
/* Box* br_box = */ new Box(25, 50, 200, 40, FL_MAGENTA,
"Fl_Box br(25, 50, 200, 40)\nx, y relative to BR window");
br_window->end();
Fl_Group* tr_group = new Fl_Group(250, 0, 250, 100);
tr_group->box(FL_ENGRAVED_BOX);
/* Title* tr_title = */ new Title(260, 10, 230, 40, FL_BLUE,
"Fl_Group TR(250, 0, 250, 100)\nx, y relative to main window");
/* Box* tr_box = */ new Box(275, 50, 200, 40, FL_BLUE,
"Fl_Box tr(275, 50, 200, 40)\nx, y relative to main window");
tr_group->end();
Fl_Group* bl_group = new Fl_Group(0, 100, 250, 100);
bl_group->box(FL_ENGRAVED_BOX);
/* Title* bl_title = */ new Title(10, 110, 230, 40, FL_BLACK,
"Fl_Group BL(0, 100, 250, 100)\nx, y relative to main window");
/* Box* bl_box = */ new Box(25, 150, 200, 40, FL_BLACK,
"Fl_Box bl(25, 150, 200, 40)\nx, y relative to main window");
bl_group->end();
// member variable
message_box = new Fl_Box(0, 201, 500, 30);
message_box->align(FL_ALIGN_INSIDE | FL_ALIGN_CENTER);
message_box->box(FL_ENGRAVED_BOX);
message_box->labelfont(FL_COURIER);
message_box->labelsize(12);
end();
}
protected:
int handle(int event) {
static char buffer[128];
static const char* fmt = "Mouse position relative to main window: %3d,%3d";
int result = Fl_Window::handle(event);
switch (event) {
case FL_ENTER:
case FL_LEAVE:
result = 1;
message_box->copy_label("");
break;
case FL_MOVE:
case FL_DRAG:
result = 1;
if (0 < Fl::event_x() && Fl::event_x() < w() &&
0 < Fl::event_y() && Fl::event_y() < h()) {
fl_snprintf(buffer, 128-1, fmt, Fl::event_x(), Fl::event_y());
message_box->copy_label(buffer);
} else message_box->copy_label("");
break;
default:
break;
}
return result;
}
private:
Fl_Box* message_box;
};
int main(int argc, char** argv) {
MainWindow window(500, 232, "FLTK Coordinate Systems");
window.show(argc, argv);
return Fl::run();
}
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