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Thread: How to constantly refresh time on a view

  1. #1
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    Default How to constantly refresh time on a view

    Hi ALL,
    I am developing an application in which i want the clock to show continous time as of my PC(machine) time,when i run the application it shows the time but the time issnt refreshing ,it isnt changing at all ,i have QTimer for that purpose but it doesnt seem to work !!..
    anyhelp would be apprecited..

    HEADER FILE
    Qt Code:
    1. QTime time;
    2. QTimer *update;
    3. QFont fontTime;
    4. QString timeString;
    5. ..
    6. public slots:
    7. void updateTime();
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    SOURCE FILE
    Qt Code:
    1. time = QTime::currentTime();
    2. update = new QTimer();
    3. connect(update,SIGNAL(timeout()),this,SLOT(updateTime()));
    4. update->start(1000);
    5. timeString = time.toString("hh:mm A");
    6. .. ..
    7. timeItem = scene->addText(timeString);
    8. timeItem->setFont(fontTime);
    9. timeItem->setTextWidth(100);
    10. timeItem->setPos(TIME_TEXT_X,TIME_TEXT_Y);
    11. .. ..
    12. void TrainingUI::updateTime()
    13. {
    14. time = QTime::currentTime();
    15. }
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    Last edited by wysota; 23rd June 2008 at 13:41. Reason: Changed [qtclass] to [code]

  2. #2
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    Default Re: How to constantly refresh time on a view

    You need to call timeItem->setText(....) in TrainingUI::updateTime().

  3. #3
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    Default Re: How to constantly refresh time on a view

    thanks for the reply...but there doesnt seem to be any function as setText()...

  4. #4
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    Default Re: How to constantly refresh time on a view


  5. #5
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    Default Re: How to constantly refresh time on a view

    I think you need to add the following code inside the slot.

    Qt Code:
    1. timeString = time.toString("hh:mm A");
    2. ...
    3. ...
    4. timeItem = scene->addText(timeString);
    5. timeItem->setFont(fontTime);
    6. timeItem->setTextWidth(100);
    7. timeItem->setPos(TIME_TEXT_X,TIME_TEXT_Y);
    To copy to clipboard, switch view to plain text mode 

    Looks like the code is outside.

    [EDIT] Rather, you will need to update the text of your timeItem inside the slot.

  6. #6
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    Default Re: How to constantly refresh time on a view

    Thanks,it worked..i was calling slot for just updating and not showing it on the view...bad mistake from me..

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