110 lines
2.4 KiB
Text
110 lines
2.4 KiB
Text
|
# SPDX-FileCopyrightText: (C) 2022 James Turner <james@flightgear.org>
|
||
|
|
# SPDX-License-Identifier: GPL-2.0-or-later
|
||
|
|
|
||
|
|
gui.widgets.ComboBox = {
|
||
|
|
new: func(parent, style, cfg)
|
||
|
|
{
|
||
|
|
var cfg = Config.new(cfg);
|
||
|
|
var m = gui.Widget.new(gui.widgets.ComboBox);
|
||
|
|
m._focus_policy = m.StrongFocus;
|
||
|
|
# m._flat = cfg.get("flat", 0);
|
||
|
|
m._menu = gui.Menu.new();
|
||
|
|
m._setView( style.createWidget(parent, cfg.get("type", "combo-box"), cfg) );
|
||
|
|
m._items = [];
|
||
|
|
m._currentIndex = nil;
|
||
|
|
m._style = style; # cache reference to style for creating items
|
||
|
|
m._down = 0;
|
||
|
|
|
||
|
|
return m;
|
||
|
|
},
|
||
|
|
|
||
|
|
setText: func(text)
|
||
|
|
{
|
||
|
|
if( me._view != nil )
|
||
|
|
me._view.setText(me, text);
|
||
|
|
return me;
|
||
|
|
},
|
||
|
|
|
||
|
|
show: func()
|
||
|
|
{
|
||
|
|
# check if enabled
|
||
|
|
},
|
||
|
|
|
||
|
|
menu: func()
|
||
|
|
{
|
||
|
|
return me._menu;
|
||
|
|
},
|
||
|
|
|
||
|
|
# convenience helper to add simple items
|
||
|
|
addMenuItem: func(text, value) {
|
||
|
|
var index = size(me._items);
|
||
|
|
var item = me.menu().createItem(text, func { me._itemCallback(index);}, {});
|
||
|
|
item.menuValue = value;
|
||
|
|
append(me._items, item);
|
||
|
|
if (me._currentIndex == nil) {
|
||
|
|
# select first item added, if we were previously empty
|
||
|
|
me.setCurrentByIndex(0);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
# helper to set the current item by passing in
|
||
|
|
# a value of an item
|
||
|
|
setCurrentByValue: func(value) {
|
||
|
|
var index = 0;
|
||
|
|
foreach(var i; me._items) {
|
||
|
|
if (i.menuValue == value) {
|
||
|
|
setCurrentByIndex(index);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
index+=1;
|
||
|
|
}
|
||
|
|
|
||
|
|
logprint(DEV_WARN, "Canvas.Gui ComboBox: no such value in menu:" ~ value);
|
||
|
|
},
|
||
|
|
|
||
|
|
setCurrentByIndex: func(index) {
|
||
|
|
if (me._currentIndex == index)
|
||
|
|
return;
|
||
|
|
|
||
|
|
if (index >= size(me._items)) {
|
||
|
|
logprint(DEV_WARN, "Canvas.Gui ComboBox: invalid index passed to setCUrrentByIndex" ~ index);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
me._currentIndex = index;
|
||
|
|
me._view.setText(me, me._items[index].text());
|
||
|
|
},
|
||
|
|
|
||
|
|
setDown: func(down = 1)
|
||
|
|
{
|
||
|
|
if (me._down == down )
|
||
|
|
return me;
|
||
|
|
|
||
|
|
me._down = down;
|
||
|
|
me._onStateChange();
|
||
|
|
return me;
|
||
|
|
},
|
||
|
|
|
||
|
|
# protected:
|
||
|
|
_itemCallback: func(index)
|
||
|
|
{
|
||
|
|
me.setCurrentByIndex(index);
|
||
|
|
},
|
||
|
|
|
||
|
|
_setView: func(view)
|
||
|
|
{
|
||
|
|
call(gui.Widget._setView, [view], me);
|
||
|
|
|
||
|
|
var el = view._root;
|
||
|
|
el.addEventListener("mousedown", func if( me._enabled ) { me.setDown(1); me._openMenu(); });
|
||
|
|
el.addEventListener("mouseup", func if( me._enabled ) me.setDown(0));
|
||
|
|
el.addEventListener("mouseleave",func me.setDown(0));
|
||
|
|
},
|
||
|
|
|
||
|
|
_openMenu: func
|
||
|
|
{
|
||
|
|
me.menu().show();
|
||
|
|
}
|
||
|
|
};
|