[Interest] Uncheck Button in QML ButtonGroup

[Jérôme Godbout]

Small fix to double check on single entry, my bad:

ExclusiveGroup
{
id: group_
property var lastClicked: null
function unselectAll()
{
[b1_, b2_].forEach(function(v){ return v.checked  = false; });
current = null;
lastClicked = null;
}
}

Column
{
CheckBox
{
id: b1_
text: 'b1'
exclusiveGroup: group_
onClicked:
{
if(checked && group_.lastClicked == b1_)
group_.unselectAll();
else
group_.lastClicked = b1_;
}
}

CheckBox
{
id: b2_
text: 'b2'
exclusiveGroup: group_
onClicked:
{
if(checked && group_.lastClicked == b2_)
group_.unselectAll();
else
group_.lastClicked = b2_;
}
}
}

[image: bodycad] <https://www.bodycad.com/>
Jerome Godbout
Software Developer
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T:  +1 418 527-1388
E: jerome at bodycad.com
www.bodycad.com

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On Wed, Aug 16, 2017 at 10:10 AM, Jérôme Godbout <jerome at bodycad.com> wrote:

> It's sad that the clicked event is sent after the exclusive group is
> handled (since we cannot affect or cancel it, so here's a work around):
>
> ExclusiveGroup
> {
> id: group_
> property var lastClicked: null
> function unselectAll()
> {
> [b1_, b2_].forEach(function(v){ return v.checked  = false; });
> current = null;
> }
> }
>
> Column
> {
> CheckBox
> {
> id: b1_
> text: 'b1'
> exclusiveGroup: group_
> onClicked:
> {
> if(checked && group_.lastClicked == b1_)
> group_.unselectAll();
> group_.lastClicked = b1_;
> }
> }
>
> CheckBox
> {
> id: b2_
> text: 'b2'
> exclusiveGroup: group_
> onClicked:
> {
> if(checked && group_.lastClicked == b2_)
> group_.unselectAll();
> group_.lastClicked = b2_;
> }
> }
> }
>
> This should allow you to single select a checkbox and if reclick on 1 to
> deselect them.
>
>
> [image: bodycad] <https://www.bodycad.com/>
> Jerome Godbout
> Software Developer
> 2035 rue du Haut-Bord, Québec, QC, Canada. G1N 4R7
> T:  +1 418 527-1388 <(418)%20527-1388>
> E: jerome at bodycad.com
> www.bodycad.com
>
> The contents of this email message and any attachments are intended solely
> for the addressee(s) and may contain confidential and/or privileged
> information and may be legally protected from disclosure. If you are not
> the intended recipient of this message or their agent, or if this message
> has been addressed to you in error, please immediately alert the sender by
> reply email and then delete this message and any attachments. If you are
> not the intended recipient, you are hereby notified that any use,
> dissemination, copying, or storage of this message or its attachments is
> strictly prohibited.
>
> Le contenu de ce message et les pièces jointes sont destinés uniquement
> pour le(s) destinataire(s) et peuvent contenir des informations
> confidentielles et / ou privilégiées qui peuvent être protégées légalement
> contre toute divulgation. Si vous n'êtes pas le destinataire de ce message
> ou son agent, ou si ce message vous a été adressé par erreur, s’il vous
> plaît avertir immédiatement l'expéditeur par courriel de réponse, puis
> supprimer ce message et les pièces jointes. Si vous n'êtes pas le
> destinataire prévu, vous êtes par la présente informé que toute
> utilisation, diffusion, copie, ou stockage de ce message ou de ses pièces
> jointes est strictement interdit.
>
> On Wed, Aug 16, 2017 at 8:48 AM, Bullinger, Julius <
> julius.bullinger at intel.com> wrote:
>
>> *From:* Jérôme Godbout [mailto:jerome at bodycad.com]
>> *Sent:* Wednesday, August 16, 2017 14:32
>> *To:* Bullinger, Julius <julius.bullinger at intel.com>
>> *Cc:* interest at qt-project.org
>> *Subject:* Re: [Interest] Uncheck Button in QML ButtonGroup
>>
>>
>>
>> > Here's what I did:
>>
>> >
>>
>> > function unselectAllButton()
>>
>> > {
>>
>> >  [idButton1, idButton2, ...].forEach(function(v){ v.checked = false;
>> });
>>
>> >  group.checkedButton = null;
>>
>> > }
>>
>> >
>>
>> > I didn't test it with ButtonGroup, but only with QtQuick Controls 1
>> and ExclusiveGroup
>>
>> > work this way (change the group.checkButton for group.current), so I
>> guess it should
>>
>> > work too.
>>
>>
>>
>> And you can toggle the checked state when clicking on a button with that?
>> On which trigger is this function called?
>>
>>
>>
>> Thanks,
>>
>> Julius
>>
>>
>>
>>
>>
>> Intel Deutschland GmbH
>> Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany
>> Tel: +49 89 99 8853-0, www.intel.de
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