Skip to content
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Search
  • Get Qt Extensions
  • Unsolved
Collapse
Brand Logo
  1. Home
  2. Qt Development
  3. General and Desktop
  4. Circle user avatar issue
Forum Updated to NodeBB v4.3 + New Features

Circle user avatar issue

Scheduled Pinned Locked Moved Solved General and Desktop
28 Posts 3 Posters 7.8k 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.
  • mrjjM Offline
    mrjjM Offline
    mrjj
    Lifetime Qt Champion
    wrote on last edited by
    #14

    Hi
    Do you need to do this dynamically since using 2 images would be much easier.
    But i assume you need multiple avatar images and hence having a "circled" version is
    not optimal ?

    Cobra91151C 1 Reply Last reply
    0
    • mrjjM mrjj

      Hi
      Do you need to do this dynamically since using 2 images would be much easier.
      But i assume you need multiple avatar images and hence having a "circled" version is
      not optimal ?

      Cobra91151C Offline
      Cobra91151C Offline
      Cobra91151
      wrote on last edited by Cobra91151
      #15

      @mrjj

      What do you mean to use 2 images? The concept is to display user avatar when he signed in. So it will change dynamically.

      mrjjM 1 Reply Last reply
      0
      • Cobra91151C Cobra91151

        @mrjj

        What do you mean to use 2 images? The concept is to display user avatar when he signed in. So it will change dynamically.

        mrjjM Offline
        mrjjM Offline
        mrjj
        Lifetime Qt Champion
        wrote on last edited by
        #16

        @Cobra91151
        One that is normal
        and one where you have drawn the highlight/circle on.
        and when you select/click QLabel you switch to that image.

        1 Reply Last reply
        0
        • mrjjM Offline
          mrjjM Offline
          mrjj
          Lifetime Qt Champion
          wrote on last edited by
          #17

          Ah so user will bring his own avatar image ?

          Cobra91151C 1 Reply Last reply
          0
          • mrjjM mrjj

            Ah so user will bring his own avatar image ?

            Cobra91151C Offline
            Cobra91151C Offline
            Cobra91151
            wrote on last edited by
            #18

            @mrjj

            Yes.

            mrjjM 1 Reply Last reply
            0
            • Cobra91151C Cobra91151

              @mrjj

              Yes.

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #19

              @Cobra91151
              Ok, then painting yourself seems better :)
              What was wrong with the paintEvent + scaled + drawEllipse ?
              since you are now looking into masks

              Cobra91151C 1 Reply Last reply
              0
              • mrjjM mrjj

                @Cobra91151
                Ok, then painting yourself seems better :)
                What was wrong with the paintEvent + scaled + drawEllipse ?
                since you are now looking into masks

                Cobra91151C Offline
                Cobra91151C Offline
                Cobra91151
                wrote on last edited by
                #20

                @mrjj

                I draws the image but not rounds it.

                void AccountImage::paintEvent(QPaintEvent *event)
                {
                    QPixmap pixmap(":/Icon/default_avatar.png");
                    QPixmap scaled = pixmap.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
                    QBrush brush(scaled);
                    QPainter painter(this);
                    painter.setRenderHint(QPainter::Antialiasing);
                    painter.setBrush(brush);
                    painter.drawPixmap(0, 0, scaled);
                    QLabel::paintEvent(event);
                }
                

                alt text

                1 Reply Last reply
                0
                • mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by mrjj
                  #21

                  Why not ?
                  just need the
                  painter.drawEllipse(0, 0, scaled.width(), scaled.height());
                  after
                  painter.drawPixmap(0, 0, scaled);

                  Cobra91151C 1 Reply Last reply
                  0
                  • mrjjM mrjj

                    Why not ?
                    just need the
                    painter.drawEllipse(0, 0, scaled.width(), scaled.height());
                    after
                    painter.drawPixmap(0, 0, scaled);

                    Cobra91151C Offline
                    Cobra91151C Offline
                    Cobra91151
                    wrote on last edited by Cobra91151
                    #22

                    @mrjj

                    drawPixmap is draws the pixmap, not circle. What method I should use to get image circle?

                    mrjjM 1 Reply Last reply
                    0
                    • Cobra91151C Cobra91151

                      @mrjj

                      drawPixmap is draws the pixmap, not circle. What method I should use to get image circle?

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #23

                      @Cobra91151
                      as before. drawEllipse

                      Cobra91151C 1 Reply Last reply
                      0
                      • mrjjM mrjj

                        @Cobra91151
                        as before. drawEllipse

                        Cobra91151C Offline
                        Cobra91151C Offline
                        Cobra91151
                        wrote on last edited by Cobra91151
                        #24

                        @mrjj

                        Code:

                        void AccountImage::paintEvent(QPaintEvent *event)
                        {
                            QPixmap pixmap(":/Icon/default_avatar.png");
                            QPixmap scaled = pixmap.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
                            QBrush brush(scaled);
                            QPainter painter(this);
                            painter.setRenderHint(QPainter::Antialiasing);
                            painter.setBrush(brush);
                            painter.drawPixmap(0, 0, scaled);
                            painter.drawEllipse(0, 0, scaled.width(), scaled.height());
                            QLabel::paintEvent(event);
                        }
                        

                        0_1517062687531_2018-01-27_161733.png

                        Still image is not fully in a circle.

                        Update:
                        It looks better here:

                        0_1517062937546_2018-01-27_162205.png

                        void AccountImage::paintEvent(QPaintEvent *event)
                        {
                            QPixmap pixmap(":/Icon/default_avatar.png");
                            QBrush brush(pixmap);
                            QPainter painter(this);
                            painter.setRenderHint(QPainter::Antialiasing);
                            painter.setBrush(brush);
                            painter.drawRoundedRect(0, 0, width(), height(), 100, 100);
                            QLabel::paintEvent(event);
                        }
                        

                        But I can't scale it properly.

                        1 Reply Last reply
                        0
                        • mrjjM Offline
                          mrjjM Offline
                          mrjj
                          Lifetime Qt Champion
                          wrote on last edited by
                          #25

                          Hi
                          well can scale the image to less that the size of the
                          QLabel so there are room to draw a circle around the image.
                          Since the image is the size of the Label , you cant draw outside the image.

                          so either make image smaller to it can be inside circle or
                          make image smaller so it fits in circle.

                          Cobra91151C 1 Reply Last reply
                          1
                          • mrjjM mrjj

                            Hi
                            well can scale the image to less that the size of the
                            QLabel so there are room to draw a circle around the image.
                            Since the image is the size of the Label , you cant draw outside the image.

                            so either make image smaller to it can be inside circle or
                            make image smaller so it fits in circle.

                            Cobra91151C Offline
                            Cobra91151C Offline
                            Cobra91151
                            wrote on last edited by Cobra91151
                            #26

                            @mrjj

                            So now it looks much better:

                            0_1517064100797_2018-01-27_164133.png

                            void AccountImage::paintEvent(QPaintEvent *event)
                            {
                                QPixmap pixmap(":/Icon/default_avatar.png");
                                QPixmap scaled = pixmap.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
                                QBrush brush(scaled);
                                QPainter painter(this);
                                painter.setRenderHint(QPainter::Antialiasing);
                                painter.setBrush(brush);
                                painter.drawRoundedRect(0, 0, width(), height(), 100, 100);
                                QLabel::paintEvent(event);
                            }
                            
                            mrjjM 1 Reply Last reply
                            0
                            • Cobra91151C Cobra91151

                              @mrjj

                              So now it looks much better:

                              0_1517064100797_2018-01-27_164133.png

                              void AccountImage::paintEvent(QPaintEvent *event)
                              {
                                  QPixmap pixmap(":/Icon/default_avatar.png");
                                  QPixmap scaled = pixmap.scaled(width(), height(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
                                  QBrush brush(scaled);
                                  QPainter painter(this);
                                  painter.setRenderHint(QPainter::Antialiasing);
                                  painter.setBrush(brush);
                                  painter.drawRoundedRect(0, 0, width(), height(), 100, 100);
                                  QLabel::paintEvent(event);
                              }
                              
                              mrjjM Offline
                              mrjjM Offline
                              mrjj
                              Lifetime Qt Champion
                              wrote on last edited by
                              #27

                              @Cobra91151
                              Ah yes. Like brush.
                              So you want image to be inside the circle and let it clip anything else.
                              I thought you wanted to paint a circle on it. :)

                              Cobra91151C 1 Reply Last reply
                              0
                              • mrjjM mrjj

                                @Cobra91151
                                Ah yes. Like brush.
                                So you want image to be inside the circle and let it clip anything else.
                                I thought you wanted to paint a circle on it. :)

                                Cobra91151C Offline
                                Cobra91151C Offline
                                Cobra91151
                                wrote on last edited by Cobra91151
                                #28

                                @mrjj

                                So finally I have set it properly and it works great!

                                void AccountImage::paintEvent(QPaintEvent *event)
                                {
                                    QPixmap pixmap(":/Icon/my_avatar.png");
                                    QPixmap scaled = pixmap.scaled(width(), height(), Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
                                    QBrush brush(scaled);
                                    QPainter painter(this);
                                    painter.setRenderHint(QPainter::Antialiasing);
                                    painter.setBrush(brush);
                                    painter.drawRoundedRect(0, 0, width(), height(), 100, 100);
                                    QLabel::paintEvent(event);
                                }
                                

                                Result:

                                0_1517065826536_2018-01-27_171006.png

                                Thank you for the help.

                                1 Reply Last reply
                                1

                                • Login

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