void
Module::update_tooltip ( void )
{
char *s;
asprintf( &s, "Left click to edit parameters; Ctrl + left click to select; right click or MENU key for menu. (info: latency: %lu)", (unsigned long) get_module_latency() );
copy_tooltip(s);
free(s);
}
int tabbar::handle(const int e) {
bool ontab = false;
u32 which = 0;
bool leftcloser = false;
// Over a tab?
if (mousein) {
u32 max;
const u32 tabw = calctabw(&max, w());
if (mousex < x() + max * tabw && mousex >= (u32) x()) {
ontab = true;
u32 tmp = mousex - x();
const u32 whichmod = tmp % tabw;
if (whichmod < tabw / 2)
leftcloser = true;
tmp /= tabw;
which = tmp;
}
}
switch (e) {
case FL_ENTER:
mousein = true;
return 1;
case FL_LEAVE:
mousein = false;
redraw();
return 1;
case FL_DRAG:
if (!dragging && ontab && Fl::event_state(FL_BUTTON1)) {
srctab = which;
if (abs(Fl::event_x() - (int) dragstartx) >= 10)
dragging = true;
}
// Fallthrough
case FL_MOVE:
mousex = Fl::event_x();
redraw();
if (ontab) {
if (!tooltip() || strcmp(tooltip(), g->tabs[which].title())) {
copy_tooltip(g->tabs[which].title());
Fl_Tooltip::enter(0);
Fl_Tooltip::enter(this);
}
} else {
if (!tooltip() || strcmp(tooltip(), "")) {
tooltip("");
Fl_Tooltip::enter(0);
Fl_Tooltip::enter(this);
}
}
return 1;
case FL_PUSH:
// Double click on empty?
if (Fl::event_clicks() && Fl::event_button() == FL_LEFT_MOUSE &&
!ontab) {
newtab();
return 1;
}
dragstartx = Fl::event_x();
return 1;
case FL_RELEASE:
// Tiny differences are mouse jerks, ignore under 10 pixels
if (abs(Fl::event_x() - (int) dragstartx) < 10)
dragging = false;
if (dragging) {
const tab tmp = g->tabs[srctab];
if (ontab) {
u32 newpos = which;
// No drag?
if ((srctab == newpos - 1 && leftcloser) ||
(srctab == newpos + 1 && !leftcloser) ||
srctab == which)
goto dragdone;
if (!leftcloser && newpos < srctab)
newpos++;
else if (leftcloser && newpos > srctab)
newpos--;
g->tabs.erase(g->tabs.begin() + srctab);
if (newpos < g->tabs.size())
g->tabs.insert(g->tabs.begin() + newpos, tmp);
else
g->tabs.push_back(tmp);
if (g->curtab == srctab)
g->curtab = newpos;
else if (g->curtab > srctab && g->curtab <= newpos)
g->curtab--;
else if (g->curtab < srctab && g->curtab >= newpos)
g->curtab++;
if (g->curtab >= g->tabs.size())
g->curtab = g->tabs.size() - 1;
} else {
g->tabs.erase(g->tabs.begin() + srctab);
g->tabs.push_back(tmp);
if (g->curtab > srctab)
g->curtab--;
else if (g->curtab == srctab)
g->curtab = g->tabs.size() - 1;
}
} else if (ontab) {
if (Fl::event_button() == FL_LEFT_MOUSE) {
activatetab(which);
} else if (Fl::event_button() == FL_MIDDLE_MOUSE) {
activatetab(which);
closetab();
}
}
dragdone:
dragging = false;
return 1;
}
return Fl_Widget::handle(e);
}