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[Solved]Size of pushbuttons

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  • R Offline
    R Offline
    rokemoon
    wrote on last edited by
    #8

    "size()":http://doc.qt.nokia.com/latest/qwidget.html#size-prop return "QSize":http://doc.qt.nokia.com/latest/qsize.html object, where you can call "height()":http://doc.qt.nokia.com/latest/qsize.html#height

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    • A Offline
      A Offline
      alfah
      wrote on last edited by
      #9

      rokemoon

      :D I got it :D Thank you!!!

      Jus one more questions, the values i got was 480 n 640. could you tell me, wats the unit? i mean, mm?? px?? or wat???

      Thank you

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      • R Offline
        R Offline
        rokemoon
        wrote on last edited by
        #10

        the value in px.
        If you solved your problem please mark title of the post like this
        [SOLVED] Size of pushbuttions

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        • C Offline
          C Offline
          Chuck Gao
          wrote on last edited by
          #11

          I'm sorry alfah, i can not understand your English clearlly. But, the size() function will return the widget's size(as we know QSize), as Eddy mentioned before, i think you need know some concept of geometry/bounding-rect.

          [quote author="alfah" date="1311752432"]could u tell me how to go about it to find the size of any one of the pushbuttons?[/quote]

          what do you mean alfah ? Can you give us a more detailed description ?

          Chuck

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          • C Offline
            C Offline
            Chuck Gao
            wrote on last edited by
            #12

            ok, you solve it. Good luck :D

            Chuck

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            • A Offline
              A Offline
              alfah
              wrote on last edited by
              #13

              Hey everybody,

              im sorry to restart this thread, but the following code gives me values 480 and 640
              @
              cellBut[i][j]=new QPushButton();
              connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));
              ht=cellBut[0][0]->size().height();
              wd=cellBut[0][0]->size().width();
              @

              by no means this is the size of the buttons, think its the screen size!!!!

              I need pushbutton ht and width

              Thank you

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              • EddyE Offline
                EddyE Offline
                Eddy
                wrote on last edited by
                #14

                did you use an iteration like :
                @for(i = 0, i < max , ++i){
                for(j=0, j<max, ++j){
                //do your stuff
                }
                }@

                Qt Certified Specialist
                www.edalsolutions.be

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                • A Offline
                  A Offline
                  alfah
                  wrote on last edited by
                  #15

                  eddy,

                  Yup i did,
                  @
                  for(int i=0;i<6;i++)
                  {
                  for(int j=0;j<7;j++)
                  {

                         cellBut[i][j]=new QPushButton();
                         connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));
                         ht=cellBut[i][j]->size().height();
                         wd=cellBut[i][j]->size().width();
                  
                      }
                  }
                  

                  @

                  ht and wd gives me 640 and 480 respectivvely. which i think is the screen size and not individual button size.
                  :(

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                  • C Offline
                    C Offline
                    Chuck Gao
                    wrote on last edited by
                    #16

                    I think the problem is, you didn't set the pushbutton's size implicit. And you didn't use any layout management. So the value is not you want.

                    Chuck

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                    • EddyE Offline
                      EddyE Offline
                      Eddy
                      wrote on last edited by
                      #17

                      what Chuck is saying is that you didn't use a parent or add them to a layout. That way they get a size.

                      have a look at this quick and dirty example:

                      @ int rows = 6;//this is convenient in case you want to alter the numbers
                      int cols = 7;
                      QPushButton* cellBut[rows][cols] ;

                      for(int i=0;i<rows;i++) {
                          for(int j=0;j<cols;j++)     {
                              cellBut[i][j]=new QPushButton(this);    //remark the use of a parent here
                              //        connect(cellBut[i][j],SIGNAL(clicked()),this,SLOT(onClickAction()));//better way see below
                      
                          }
                      }
                      qDebug() << cellBut[0][0]->size().height();
                      qDebug() << cellBut[0][0]->size().width();@
                      

                      you might have a look at "QSignalMapper":http://doc.qt.nokia.com/4.7/qsignalmapper.html#details. There is a nice example of what you try to achieve.

                      Qt Certified Specialist
                      www.edalsolutions.be

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                      • A Offline
                        A Offline
                        alfah
                        wrote on last edited by
                        #18

                        chuck,

                        Yea, I have not set size of the pushbutton, But since it has been created, why doesn it give me the current size of the button. That it should do right?

                        :( Is it necessary to specify the size of the button while creating them?

                        Thank you

                        alfah

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                        • EddyE Offline
                          EddyE Offline
                          Eddy
                          wrote on last edited by
                          #19

                          in case you missed my topic :
                          have a look at my example. also the QSignalMapper link.

                          Qt Certified Specialist
                          www.edalsolutions.be

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                          • A Offline
                            A Offline
                            alfah
                            wrote on last edited by
                            #20

                            :) Thanks Eddy,

                            Got tht one, size now is 100 and 30 which is kinda resonable :)

                            alfah

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                            • EddyE Offline
                              EddyE Offline
                              Eddy
                              wrote on last edited by
                              #21

                              You're welcome. I'm glad you made it.

                              And did you have a look at the QSignalMapper example?
                              This will make your signal slots handling much easier.

                              Qt Certified Specialist
                              www.edalsolutions.be

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                              • A Offline
                                A Offline
                                alfah
                                wrote on last edited by
                                #22

                                :)

                                I checked that, :) its a lot more easier.

                                Thank you :) :)

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                                • C Offline
                                  C Offline
                                  Chuck Gao
                                  wrote on last edited by
                                  #23

                                  Anyway, Enjoy Qt alfah :D

                                  Chuck

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                                  • A Offline
                                    A Offline
                                    alfah
                                    wrote on last edited by
                                    #24

                                    chuck,

                                    :) well, im a beginner in Qt, so far it hasn been an enjoyment :),
                                    gradually i hope i will love bugs:D

                                    :)

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