75 lines
1.7 KiB
Text
75 lines
1.7 KiB
Text
gui.widgets.Button = {
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new: func(parent, style, cfg)
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{
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var cfg = Config.new(cfg);
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var m = gui.Widget.new(gui.widgets.Button);
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m._focus_policy = m.StrongFocus;
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m._active = 0;
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m._flat = cfg.get("flat", 0);
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if( style != nil and !m._flat )
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{
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m._button = style.createWidget(parent, "button", cfg);
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m._setRoot(m._button.element);
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}
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m.setMinimumSize([16, 16]);
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m.setSizeHint([32, 32]);
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m.setMaximumSize([m._MAX_SIZE, m._MAX_SIZE]);
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m.setSetGeometryFunc(m.setGeometry);
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return m;
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},
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setText: func(text)
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{
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me._button.setText(text);
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return me;
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},
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setActive: func
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{
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if( me._active )
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return me;
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me._active = 1;
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me._onStateChange();
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return me;
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},
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clearActive: func
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{
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if( !me._active )
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return me;
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me._active = 0;
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me._onStateChange();
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return me;
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},
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onClick: func {},
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setGeometry: func(geom)
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{
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me.move(geom[0], geom[1]);
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me._button.setSize([geom[2] - geom[0], geom[3] - geom[1]]);
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me._onStateChange();
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return me;
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},
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# protected:
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_onStateChange: func
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{
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if( me._button != nil )
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me._button.update(me._active, me._focused, me._hover, !me._windowFocus());
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},
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_setRoot: func(el)
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{
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el.addEventListener("mousedown", func me.setActive());
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el.addEventListener("mouseup", func me.clearActive());
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# Use 'call' to ensure 'me' is not set and can be used in the closure of
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# custom callbacks. TODO pass 'me' as argument?
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el.addEventListener("click", func call(me.onClick));
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el.addEventListener("mouseleave",func me.clearActive());
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el.addEventListener("drag", func(e) e.stopPropagation());
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call(gui.Widget._setRoot, [el], me);
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}
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};
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