95 lines
2 KiB
Text
95 lines
2 KiB
Text
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# RadioButton.nas : radio button, and group helper
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# to manage updating checked state conherently
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# Copyright (C) 2022 James Turner
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# SPDX-License-Identifier: GPL-2.0-or-later
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gui.widgets.RadioButton = {
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new: func(parent, style, cfg)
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{
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cfg["type"] = "radio";
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var m = gui.widgets.Button.new(parent, style, cfg);
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m._checkable = 1;
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append(m.parents, gui.widgets.RadioButton);
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if (contains(pr, "radioGroup") {
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pr.radioGroup.addRadio(m);
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}
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return m;
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},
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del: func()
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{
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var pr = getParent();
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if (contains(pr, "radioGroup") {
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pr.radioGroup.removeRadio(me);
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}
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},
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setCheckable: nil,
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setChecked: func(checked = 1)
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{
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# call our base version
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me.parents[0].setChecked(checked);
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if (checked) {
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me._setRadioGroupSiblingsUnchecked();
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}
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},
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# protected members
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_setRadioGroupSiblingsUnchecked: func
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{
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var pr = getParent();
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if (contains(pr, "radioGroup") {
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pr.radioGroup._updateChecked(me);
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} else {
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# todo, remove me, it's okay to manually manage RadioButtons
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logprint(LOG_DEV, "No radio group defined");
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}
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}
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};
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# auto manage radio-button checked state
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gui.widgets.RadioGroup = {
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new: func(nm = 'unnamed')
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{
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var m = {parents:[gui.widgets.RadioGroup, name:nm, radios:[]]};
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return m;
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},
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addRadio: func(r)
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{
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if (r.parents[0] != RadioButton) {
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logprint(LOG_ALERT, "Adding non-RadioButton to RadioGroup")
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return;
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}
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append(me.radios, r);
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},
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removeRadio: func(r)
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{
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if (r.parents[0] != RadioButton) {
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logprint(LOG_ALERT, "Remove non-RadioButton from RadioGroup")
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return;
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}
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# should we update some other item to be checked?
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me.radios.remove(r);
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},
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setEnabled: func(doEnable = 1)
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{
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foreach (var r : me.radios) {
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r.setEnabled(doEnable);
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}
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},
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# protected methods
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# update check state of all radios in the group
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_updateChecked: func(active)
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{
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foreach (var r : me.radios) {
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r.setChecked(r == active);
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}
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}
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};
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