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//
// Copyright 2006-2009 Johannes Hofmann <Johannes.Hofmann@gmx.de>
//
// This software may be used and distributed according to the terms
// of the GNU General Public License, incorporated herein by reference.
#include <stdio.h>
#include <string.h>
#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Button.H>
#include "Fl_Search_Chooser.H"
int
Fl_Search_Browser::find_prefix(const char *p) {
int i = find_prefix(p, 1, size());
if (i == -1) {
return 1;
} else {
deselect();
middleline(i);
select(i);
return 0;
}
}
int
Fl_Search_Browser::find_prefix(const char *p, int s, int e) {
if (s < 0 || e > size() || s > e) {
fprintf(stderr, "Invalid search range %d %d\n", s, e);
return 1;
} else if (e - s <= 1) {
if (strncasecmp(p, text(s), strlen(p)) == 0) {
return s;
} else if (strncasecmp(p, text(e), strlen(p)) == 0){
return e;
} else {
return -1;
}
} else {
int med = s + (e - s) / 2;
if (strncasecmp(p, text(med), strlen(p)) > 0) {
return find_prefix(p, med, e);
} else {
return find_prefix(p, s, med);
}
}
}
void
Fl_Search_Chooser::input_cb(Fl_Input* in, void*c) {
Fl_Search_Browser *sb = ((Fl_Search_Chooser *) c)->sb;
sb->find_prefix(in->value());
}
void
Fl_Search_Chooser::ok_cb(Fl_Input* in, void*c) {
Fl_Search_Chooser *sc = (Fl_Search_Chooser *) c;
sc->close();
}
void
Fl_Search_Chooser::cancel_cb(Fl_Input* in, void*c) {
Fl_Search_Chooser *sc = (Fl_Search_Chooser *) c;
sc->sb->deselect();
sc->close();
}
class Fl_Search_Input : public Fl_Input {
public:
Fl_Search_Input(int x, int y, int w, int h, const char *title) :
Fl_Input(x, y, w, h, title) {}
int handle(int event) {
if (event == FL_KEYBOARD &&
(Fl::event_key() == FL_Up || Fl::event_key() == FL_Down)) {
return 0;
} else {
return Fl_Input::handle(event);
}
}
};
Fl_Search_Chooser::Fl_Search_Chooser(const char *title) : Fl_Window(320, 320, title?title:"Choose") {
callback((Fl_Callback*) cancel_cb, this);
visible_focus = Fl::visible_focus();
Fl::visible_focus(0);
Fl_Group *g = new Fl_Group(10, 10, w() - 10, h() - 10);
sb = new Fl_Search_Browser(g->x(), g->y(), g->w() , g->h() - 100, NULL);
sb->type(FL_HOLD_BROWSER);
Fl_Input *in = new Fl_Search_Input(g->x()+50, g->h()-80, g->w()-80, 20, "Search");
in->callback((Fl_Callback*) input_cb, this);
in->when(FL_WHEN_CHANGED);
Fl_Button *cancel_b = new Fl_Button(g->w()-200, g->h()-30, 80, 25, "Cancel");
cancel_b->callback((Fl_Callback*) cancel_cb, this);
Fl_Button *ok_b = new Fl_Button(g->w()-100, g->h()-30, 80, 25, "Ok");
ok_b->callback((Fl_Callback*) ok_cb, this);
Fl::focus(in);
g->end();
end();
}
void
Fl_Search_Chooser::close() {
hide();
Fl::visible_focus(visible_focus);
}
void
Fl_Search_Chooser::add(const char *t, void *d) {
sb->add(t, d);
}
void *
Fl_Search_Chooser::data() {
int v = sb->value();
if (v) {
return sb->data(v);
} else {
return NULL;
}
}
int
Fl_Search_Chooser::handle(int event) {
switch(event) {
case FL_KEYBOARD:
int key = Fl::event_key();
if (key == FL_Up || key == FL_Down) {
return sb->handle(event);
} else if (key == FL_Enter) {
close();
}
}
return Fl_Window::handle(event);
}
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