Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. Mobile and Embedded
  4. [Solved]Size of pushbuttons
Forum Updated to NodeBB v4.3 + New Features

[Solved]Size of pushbuttons

Scheduled Pinned Locked Moved Mobile and Embedded
24 Posts 5 Posters 17.6k Views 1 Watching
  • Oldest to Newest
  • Newest to Oldest
  • Most Votes
Reply
  • Reply as topic
Log in to reply
This topic has been deleted. Only users with topic management privileges can see it.
  • A Offline
    A Offline
    alfah
    wrote on last edited by
    #7

    chuck,

    size function will return what values? With respect to my code, could u tell me how to go about it to find the size of any one of the pushbuttons?

    Thank you

    1 Reply Last reply
    0
    • 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

      1 Reply Last reply
      0
      • 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

        1 Reply Last reply
        0
        • 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

          1 Reply Last reply
          0
          • 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

            1 Reply Last reply
            0
            • C Offline
              C Offline
              Chuck Gao
              wrote on last edited by
              #12

              ok, you solve it. Good luck :D

              Chuck

              1 Reply Last reply
              0
              • 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

                1 Reply Last reply
                0
                • 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

                  1 Reply Last reply
                  0
                  • 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.
                    :(

                    1 Reply Last reply
                    0
                    • 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

                      1 Reply Last reply
                      0
                      • 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

                        1 Reply Last reply
                        0
                        • 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

                          1 Reply Last reply
                          0
                          • 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

                            1 Reply Last reply
                            0
                            • 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

                              1 Reply Last reply
                              0
                              • 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

                                1 Reply Last reply
                                0
                                • A Offline
                                  A Offline
                                  alfah
                                  wrote on last edited by
                                  #22

                                  :)

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

                                  Thank you :) :)

                                  1 Reply Last reply
                                  0
                                  • C Offline
                                    C Offline
                                    Chuck Gao
                                    wrote on last edited by
                                    #23

                                    Anyway, Enjoy Qt alfah :D

                                    Chuck

                                    1 Reply Last reply
                                    0
                                    • 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

                                      :)

                                      1 Reply Last reply
                                      0

                                      • Login

                                      • Login or register to search.
                                      • First post
                                        Last post
                                      0
                                      • Categories
                                      • Recent
                                      • Tags
                                      • Popular
                                      • Users
                                      • Groups
                                      • Search
                                      • Get Qt Extensions
                                      • Unsolved