[Qt-interest] Timer objects conflicting
Yuvaraj R
yuvaraj at ongobiz.com
Mon Aug 17 05:52:11 CEST 2009
Thanks..
it is working
Yuvaraj R
On Thu, Aug 13, 2009 at 8:42 PM, Mikhail Veygman <mveygman at gmail.com> wrote:
> As I have mentioned before.
>
> Along with flags for on/off you will also set up the counters for each
> of the buttons. Click a button then a respective flag goes on and the
> respective counter will be incremented every time the time times out.
> Click it again and flag goes off and the counter is no longer
> incremented upon a timeout.
> -
> Regards,
>
> Mikhail Veygman
>
>
> -----Original Message-----
> From: Yuvaraj R <yuvaraj at ongobiz.com>
> To: Mikhail Veygman <mveygman at gmail.com>
> Cc: Malyushytsky, Alex <alex at wai.com>, qt-interest at trolltech.com
> <qt-interest at trolltech.com>
> Subject: Re: [Qt-interest] Timer objects conflicting
> Date: Thu, 13 Aug 2009 20:22:48 +0530
>
> i have to increment the timer value separetly according to the buttons
>
>
>
> 1) click first button _________ start timer __________Display
> value( don't stop ,if another buttons pressed means)
>
> 1) click secondbutton _________ start timer __________Display
> value(don't show first button timer value)
>
> when i am clicking the same button again,the corresponding timer will
> be stoping.
>
> How do set this senario
>
>
> Thanks
>
> Yuvaraj R
>
>
>
> On Thu, Aug 13, 2009 at 7:55 PM, Mikhail Veygman <mveygman at gmail.com>
> wrote:
> It's Mikhail.
>
> If you need to time the buttons separately and need to know how
> much
> time the timer was active set a second list of values that will
> save
> that amount. First click will set the flag and start
> incrementing,
> second click will clear the flag and stop incrementing.
>
> If the first suggestion doesn't work for you try the second.
> -
> Regards,
>
> Mikhail Veygman
>
>
> -----Original Message-----
>
> From: Yuvaraj R <yuvaraj at ongobiz.com>
> To: Mikhail Veygman <mveygman at gmail.com>
> Cc: Malyushytsky, Alex <alex at wai.com>, qt-interest at trolltech.com
> <qt-interest at trolltech.com>
> Subject: Re: [Qt-interest] Timer objects conflicting
>
>
> Date: Thu, 13 Aug 2009 19:06:05 +0530
>
> Veygman
>
> AS per your first suggestion,
>
>
> ok , i am use single timer. if i someting upadated in object.,i
> set the
> flag ..
>
> But ,i need two buttons timer value separately..That's why i am
> creating
> new objects..
>
> any other idea ?
>
>
> Thanks
>
> Yuvaraj R
>
> On Thu, Aug 13, 2009 at 6:12 PM, Mikhail Veygman
> <mveygman at gmail.com>
> wrote:
> Yuvaraj,
>
> As Alex has stated the "conflict" doesn't explain the
> problem
> you are
> having and further doesn't specify the symptoms of the
> problem,
> which
> are needed.
>
> Looking at the code, however, I think you need to change
> the
> design of
> your application the reason being is: I would assume
> that you
> have only
> one instance of the Form class and all the timers are
> created
> through it
> so you are calling the same slot in the same object, so
> my
> suggestion
> for you would be 1 of the 2 things:
>
> 1. Use a single timer and just have a list of flags on
> whether
> something needs to be updated within the object and then
> update
> it based
> on the flag being set to true.
>
> 2. Break up data handling into separate objects and
> create the
> timer
> within the object so you are not attempting to update
> parameters
> within
> the same object.
>
> -
> Regards,
>
> Mikhail Veygman
>
>
> -----Original Message-----
> From: Malyushytsky, Alex <alex at wai.com>
> To: qt-interest at trolltech.com <qt-interest at trolltech.com>
> Subject: Re: [Qt-interest] Timer objects conflicting
>
>
> Date: Wed, 12 Aug 2009 18:34:42 -0700
>
> Thiago is right about static variable initialization and
> since
> your code mostly likely assumes that initial count should
> be 0,
> it is mostly likely not a problem here. It still might be
> a
> problem in other cases. I can only guess.
> I believe it is preferable to initialize static variable
> of the
> basic types (no constructors) even if it should be
> initialized
> to 0.
> This will clearly state for the person reviewing your
> code that
> you did not forget to do it.
> Comment can be used to get the same effect, but "= 0" is
> shorter.
> This is more related to the style and I would not
> probably
> mentioned this, if code posted was not so hard to read
> due to
> lack indentation already.
>
>
> Back to the problem.
> As it was pointed already by John, the "conflict" does
> not
> explain the problem.
>
> More of that, it is not clear what was intended to do.
> You explanation does not provide information what you are
> trying
> to achieve.
> It gives description how you are doing it.
>
> Since there are endless possibilities "What" you want to
> achieve
> it is tough to help you.
>
> For example if you wanted to show time passed from the
> click on
> the last button,
> The only single timer supposed to be running at any time.
> You have to stop previously running timer (if any),
> create a new
> one and change data to be displayed.
>
> If you have parallel processes running, timers represents
> each
> process and click of the specific button just supposed to
> switching the data displayed into specific control, you
> do need
> multiple timers.
> But only one timer at a time supposed to display the
> data, the
> one associated with specific process/button.
>
>
> Regards,
> Alex
>
>
>
> -----Original Message-----
> From: qt-interest-bounces at trolltech.com
> [mailto:qt-interest-bounces at trolltech.com] On Behalf Of
> John
> McClurkin
> Sent: Wednesday, August 12, 2009 5:30 AM
> To: qt-interest at trolltech.com
> Subject: Re: [Qt-interest] Timer objects conflicting
>
> Yuvaraj R wrote:
> > Alex
> >
> > I am explaining my problem here..
> >
> >
> > I am creating new object for Timer .whenever i am
> clicking the
> push
> > button .I have set the timer timer interval 1000 sec..
> >
> > If timeout signal is emitted it will run_timer slot..
> >
> > Here i am counting the seconds and send to my main
> window...
> >
> >
> > What my thing is ,when i am creating the second object
> for
> timer,it is
> > conflicting with object 1..
>
> Your statement is still not helpful because you don't
> describe
> what the
> conflict is. So, I'll try with a couple of questions. 1)
> What
> happens
> when you just click push button 1? 2) What happens when
> you
> click push
> button 1 then click push button 2? 3)How is this
> different from
> what you
> want to happen?
>
> >
> > And more thing.. How come i know,which object is
> emitting the
> timeout signal
> You can use the sender() function in the run_timer slot.
> See the
> Qt
> documentation.
>
> >
> >
> >
> > Thanks
> >
> > Yuvaraj R
> >
> > On Wed, Aug 12, 2009 at 4:55 AM, Malyushytsky, Alex
> <alex at wai.com
> > <mailto:alex at wai.com>> wrote:
> >
> > I am not sure I followed what you were trying to
> achieve.
> > I could assume something, based on your
> explanation, but
> if you want
> > correct answer you need to ask correct question.
> > What is worth "objects are conflicting.. " gives no
> explanation of
> > the problem you are facing.
> > Code provided does not give sufficient details to
> understand it.
> > It might be a good idea to spend more formulating
> question
> if you
> > want help.
> >
> > The only thing I can say right now:
> > - static int count; is not initialized
> > - time[count] = new QTimer; may create a problem
> depending
> on the
> > container you are using.
> >
> > Regards,
> > Alex
> >
> >
> >
> > From: qt-interest-bounces at trolltech.com
> > <mailto:qt-interest-bounces at trolltech.com>
> > [mailto:qt-interest-bounces at trolltech.com
> > <mailto:qt-interest-bounces at trolltech.com>] On
> Behalf Of
> Yuvaraj R
> > Sent: Tuesday, August 11, 2009 1:30 PM
> > To: qt-interest
> > Subject: [Qt-interest] Timer objects conflicting
> >
> > Hi All
> >
> > I have 10 items in list view.. Each widget
> containing the
> push
> > button and label..
> >
> > when push button is clicked the Timer is
> running ..suppose
> if click
> > the first item push button timer value is display
> at
> label..After
> > some times again i am clicking second push
> button... this
> item value
> > also i have to display..
> >
> > whenever user clicking the button, new object will
> be
> creating for
> > QTimer..Here my problem is objects are
> conflicting..
> >
> > My code is
> >
> > void Form::get_timer(int id)
> > {
> > static int count;
> > qDebug() << "yuvaraj";
> > time[count] = new QTimer;
> > time[count]->start(1000);
> >
>
>
> QObject::connect(time[count],SIGNAL(timeout()),this,SLOT(run_timer()));
> > count++;
> > }
> > void Form::run_timer()
> > {
> > qDebug() << "yuvaraj 1";
> > QString time_count;
> > if(b==59 )
> > {
> > b=0;
> > a++;
> > }
> > if(a<10 && b<10 )
> > {
> > time_count =
> QString(QString::number(0)+QString::number(a)
> +
> > ":"+QString::number(0)+QString::number(b));
> > }
> > if(a<10 && b >=10)
> > {
> > time_count =
> QString(QString::number(0)+QString::number(a)
> +
> > ":"+QString::number(b));
> > }
> > if(a>=10 && b <10)
> > {
> > time_count = QString(QString::number(a) +
> > ":"+QString::number(0)+QString::number(b));
> > }
> > if(a>=10 && b>=10)
> > {
> > time_count =
> QString(QString::number(0)+QString::number(a)
> +
> > ":"+QString::number(b));
> > }
> > b++;
> > emit send_timer(count,time_count);
> > }
> >
> > // slot for send_timer signal
> > void MainWindow:: get_timer(int item,QString str)
> > {
> > qDebug() << "yuvaraj" << str << item;
> > for(int i=0;i<list..size();i++)
> > {
> > if(i == list_item_id[item])
> > {
> > list.at
> <http://list.at/>(i)->m_ui->set_time->setText(str);
> > }
> > }
> >
> > Please help me ,how do avoid the object conflicting
> >
> >
> > Thanks
> >
> >
> > Yuvaraj R
> >
> >
> >
>
>
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