> Also, I would like the popup window to resize without the contents
> resizing with it (I want to add more contents). Any hints on that?
Yes, you need to read up on how the resizables work in fltk!
It's a clever system, but a lot of folk find it tricky and/or
counterintuitive at first. There are some FAQ's and HowTo's about it on
the website, mainly about fltk-1, but the rules are the same.
Here's a little worked example - sorry to all and sundry it is so long -
but I think it shows the effects you are asking about, and seems to work
for me.
---------------------------------------
#include <fltk/DoubleBufferWindow.h>
#include <fltk/Button.h>
#include <fltk/run.h>
#include <fltk/InvisibleBox.h>
static fltk::DoubleBufferWindow *main_win=(fltk::DoubleBufferWindow *)0;
static fltk::DoubleBufferWindow *pop_win=(fltk::DoubleBufferWindow *)0;
static fltk::Button *btn1=(fltk::Button *)0;
static fltk::Button *quit=(fltk::Button *)0;
static fltk::Button *bt_grow=(fltk::Button *)0;
static fltk::Button *bt_shrink=(fltk::Button *)0;
static fltk::Button *bt_close=(fltk::Button *)0;
static fltk::InvisibleBox *dummy_box=(fltk::InvisibleBox *)0;
static fltk::InvisibleBox *dummy_2=(fltk::InvisibleBox *)0;
static void cb_grow(fltk::Button*, void*) {
pop_win->resize(pop_win->w()+20, pop_win->h()+20);
}
static void cb_shrink(fltk::Button*, void*) {
pop_win->resize(pop_win->w()-20, pop_win->h()-20);
}
static void cb_close(fltk::Button*, void*) {
if(pop_win) pop_win->hide();
}
static void make_popwin(void) {
pop_win = new fltk::DoubleBufferWindow(309, 230, "Popup Win");
pop_win->begin();
bt_grow = new fltk::Button(21, 16, 63, 35, "Grow");
bt_grow->callback((fltk::Callback*)cb_grow);
bt_shrink = new fltk::Button(21, 52, 63, 35, "Shrink");
bt_shrink->callback((fltk::Callback*)cb_shrink);
bt_close = new fltk::Button(220, 175, 63, 35, "close");
bt_close->callback((fltk::Callback*)cb_close);
// This dummy box "eats" all the resizing for the popup win, thereby
keeping
// the buttons the same size.
dummy_2 = new fltk::InvisibleBox(190, 145, 25, 25);
pop_win->end();
pop_win->resizable(dummy_2);
pop_win->show();
}
static void cb_btn1(fltk::Button*, void*) {
if(pop_win) pop_win->show();
else make_popwin();
}
static void cb_quit(fltk::Button*, void*) {
if(pop_win) pop_win->hide();
main_win->hide();
}
int main (int argc, char **argv)
{
main_win = new fltk::DoubleBufferWindow(309, 230, "Main");
main_win->begin();
btn1 = new fltk::Button(21, 16, 63, 35, "Popup");
btn1->callback((fltk::Callback*)cb_btn1);
quit = new fltk::Button(220, 175, 63, 35, "quit");
quit->callback((fltk::Callback*)cb_quit);
// This dummy box "eats" all the resizing for the main win, thereby
keeping
// the buttons the same size.
dummy_box = new fltk::InvisibleBox(190, 145, 25, 25);
main_win->end();
main_win->resizable(dummy_box);
main_win->show(argc, argv);
return fltk::run();
}
/* end of file */
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