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//
// Fl_Flex demo program for the Fast Light Tool Kit (FLTK).
//
// Copyright 2020 by Karsten Pedersen
// Copyright 2022 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_Flex.H>
#include <FL/Fl_Box.H>
#include <FL/Fl_Button.H>
#include <FL/Fl_Input.H>
Fl_Button *create_button(const char *caption) {
Fl_Button *rtn = new Fl_Button(0, 0, 100, 25, caption);
rtn->color(fl_rgb_color(225, 225, 225));
return rtn;
}
// create widgets inside a column, i.e. parent is type(COLUMN)
void buttons_panel(Fl_Flex *parent) {
new Fl_Box(0, 0, 0, 0, "");
Fl_Box *w = new Fl_Box(0, 0, 0, 0, "Welcome to Flex Login");
Fl_Flex *urow = new Fl_Flex(Fl_Flex::ROW);
{
Fl_Box *b = new Fl_Box(0, 0, 0, 0, "Username:");
b->align(FL_ALIGN_INSIDE | FL_ALIGN_RIGHT);
Fl_Input *username = new Fl_Input(0, 0, 0, 0, "");
urow->set_size(username, 180);
urow->end();
}
Fl_Flex *prow = new Fl_Flex(Fl_Flex::ROW);
{
Fl_Box *b = new Fl_Box(0, 0, 0, 0, "Password:");
b->align(FL_ALIGN_INSIDE | FL_ALIGN_RIGHT);
Fl_Input *password = new Fl_Input(0, 0, 0, 0, "");
prow->set_size(password, 180);
prow->end();
}
Fl_Box *pad = new Fl_Box(0, 0, 0, 0, "");
Fl_Flex *brow = new Fl_Flex(Fl_Flex::ROW);
{
new Fl_Box(0, 0, 0, 0, "");
Fl_Button *reg = create_button("Register");
Fl_Button *login = create_button("Login");
brow->set_size(reg, 80);
brow->set_size(login, 80);
brow->gap(20);
brow->end();
}
Fl_Box *b = new Fl_Box(0, 0, 0, 0, "");
parent->set_size(w, 60);
parent->set_size(urow, 30);
parent->set_size(prow, 30);
parent->set_size(pad, 1);
parent->set_size(brow, 30);
parent->set_size(b, 30);
}
// create widgets inside a row, i.e. parent is type(ROW)
void middle_panel(Fl_Flex *parent) {
new Fl_Box(0, 0, 0, 0, "");
Fl_Box *box = new Fl_Box(0, 0, 0, 0, "Image");
box->box(FL_BORDER_BOX);
box->color(fl_rgb_color(0, 200, 0));
Fl_Box *spacer = new Fl_Box(0, 0, 0, 0, "");
Fl_Flex *bp = new Fl_Flex(Fl_Flex::COLUMN);
buttons_panel(bp);
bp->end();
new Fl_Box(0, 0, 0, 0, "");
parent->set_size(box, 200);
parent->set_size(spacer, 10);
parent->set_size(bp, 300);
}
// The main panel consists of three "rows" inside a column, i.e. parent is
// type(COLUMN). The middle panel has a fixed size (200) such that the two
// boxes take the remaining space and middle_panel has all widgets.
void mainPanel(Fl_Flex *parent) {
new Fl_Box(0, 0, 0, 0, ""); // flexible separator
Fl_Flex *mp = new Fl_Flex(Fl_Flex::ROW);
middle_panel(mp);
mp->end();
new Fl_Box(0, 0, 0, 0, ""); // flexible separator
parent->set_size(mp, 200);
}
int main(int argc, char **argv) {
Fl_Window *window = new Fl_Double_Window(100, 100, "Simple GUI Example");
Fl_Flex *col = new Fl_Flex(5, 5, 90, 90, Fl_Flex::COLUMN);
mainPanel(col);
col->end();
window->resizable(col);
window->color(fl_rgb_color(250, 250, 250));
window->end();
window->resize(0, 0, 640, 480);
window->size_range(550, 250);
window->show(argc, argv);
int ret = Fl::run();
delete window; // not necessary but useful to test for memory leaks
return ret;
}
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