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Date: Wed, 8 Dec 2010 17:22:33 -0800
Message-ID: <AANLkTinp1ptZfiv3dqzcxvF8HAdj656NJvYaZxt-9bd6@mail.gmail.com>
Subject: Re: [PATCH] input: mt: Add an envelope tool type
From: Ping Cheng <pinglinux@gmail.com>
To: Henrik Rydberg <rydberg@euromail.se>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>,
        Chase Douglas <chase.douglas@canonical.com>,
        Jiri Kosina <jkosina@suse.cz>, linux-input@vger.kernel.org,
        linux-kernel@vger.kernel.org
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On Wed, Dec 8, 2010 at 5:18 PM, Henrik Rydberg <rydberg@euromail.se> wrote:
>>>> Those are good questions. Specifying how many touches are in the
>
>>>> envelop makes sense. It also covers rectangle as a special case of
>>>> envelop.
>>>
>>> I have a feeling that trying to accomodate non-rectangular,
>>
>> No, we are not talking about non-rectangular shape here. Envelop is
>> always a rectangle. By rectangle above, I meant 2 touches.
>>
>> An envelop that includes number of touches offers us more information
>> than a rectangle does.
>
>
> All you need to do to know how many points there are is to count them. :-)

Yeah, you are right. What if the client does not have the information
to count them if we do not pass them over?

Ping
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