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How to get this icon's name?

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  • Cobra91151C Cobra91151

    @cloud21

    Hi! I think there is a bug with displaying the icon name from the button. For example:

    ui->pushButton->setIcon(QPixmap(":/Resource/some_icon.png"));
    QString myButtonIconName = ui->pushButton->icon().name();
    qDebug() << myButtonIconName; // returns ""
    

    By checking for isNull(), it returns false, so it has the icon, but it can't find the name.

    Also I tried the different approach to get the icon name:

    QIcon testIcon = ui->pushButton->icon();
    qDebug() << testIcon.name(); // returns ""
    

    It still returns empty string. Can anyone confirm it?

    cloud21C Offline
    cloud21C Offline
    cloud21
    wrote on last edited by
    #5

    @Cobra91151
    0_1541424364600_QQ.png

    1 Reply Last reply
    0
    • Cobra91151C Offline
      Cobra91151C Offline
      Cobra91151
      wrote on last edited by Cobra91151
      #6

      Yes, it's a bug. But to get the icon name from the button, there are two options:

      1. Store the icon name before setting it to the button and get it later for comparison.
      2. Reimplement the QPushButton class to set/get the button's icon and then compare.
      cloud21C 1 Reply Last reply
      0
      • Cobra91151C Cobra91151

        Yes, it's a bug. But to get the icon name from the button, there are two options:

        1. Store the icon name before setting it to the button and get it later for comparison.
        2. Reimplement the QPushButton class to set/get the button's icon and then compare.
        cloud21C Offline
        cloud21C Offline
        cloud21
        wrote on last edited by
        #7

        @Cobra91151
        NO “y" only false...
        But Reimplement the QPushButton class to set/get the button's icon and then compare?
        0_1541426195378_sdf.png

        Cobra91151C 1 Reply Last reply
        0
        • cloud21C cloud21

          @Cobra91151
          NO “y" only false...
          But Reimplement the QPushButton class to set/get the button's icon and then compare?
          0_1541426195378_sdf.png

          Cobra91151C Offline
          Cobra91151C Offline
          Cobra91151
          wrote on last edited by Cobra91151
          #8

          @cloud21

          To do such comparison you should reimplement the QPushButton class, because of the Qt icon bug. But reimplementing classes are not easy tasks. The easiest way would be storing your icons name and then checking for comparison. You have to decide what option to choose.

          cloud21C 1 Reply Last reply
          0
          • Cobra91151C Cobra91151

            @cloud21

            To do such comparison you should reimplement the QPushButton class, because of the Qt icon bug. But reimplementing classes are not easy tasks. The easiest way would be storing your icons name and then checking for comparison. You have to decide what option to choose.

            cloud21C Offline
            cloud21C Offline
            cloud21
            wrote on last edited by
            #9

            @Cobra91151
            OH!
            I will try...
            Thank you very much.

            Cobra91151C 2 Replies Last reply
            1
            • cloud21C cloud21

              @Cobra91151
              OH!
              I will try...
              Thank you very much.

              Cobra91151C Offline
              Cobra91151C Offline
              Cobra91151
              wrote on last edited by Cobra91151
              #10

              @cloud21

              Your welcome. I'm also working on it (reimplementing the QPushButton). I will post it here when it will be ready.

              1 Reply Last reply
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              • Cobra91151C Offline
                Cobra91151C Offline
                Cobra91151
                wrote on last edited by
                #11

                @cloud21

                I have done some checking, so you also need to reimplement the QIcon class to make it working.

                mrjjM 1 Reply Last reply
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                • Cobra91151C Cobra91151

                  @cloud21

                  I have done some checking, so you also need to reimplement the QIcon class to make it working.

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by
                  #12

                  @Cobra91151

                  Hi
                  Can i ask what you need icon (file) name for ?

                  Cobra91151C 1 Reply Last reply
                  1
                  • mrjjM mrjj

                    @Cobra91151

                    Hi
                    Can i ask what you need icon (file) name for ?

                    Cobra91151C Offline
                    Cobra91151C Offline
                    Cobra91151
                    wrote on last edited by Cobra91151
                    #13

                    @mrjj

                    Hi! I need the icon name to compare with desktop shortcut name.

                    mrjjM 1 Reply Last reply
                    0
                    • Cobra91151C Cobra91151

                      @mrjj

                      Hi! I need the icon name to compare with desktop shortcut name.

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #14

                      @Cobra91151
                      Ok, im just asking as normally its easier to use a dynamic property to hold
                      such information for a widget.
                      http://doc.qt.io/qt-5/properties.html#dynamic-properties
                      Those can be set directly in Designer. ( the green big plus over list)
                      But it of cause depends on the full use case.

                      Cobra91151C 1 Reply Last reply
                      1
                      • mrjjM mrjj

                        @Cobra91151
                        Ok, im just asking as normally its easier to use a dynamic property to hold
                        such information for a widget.
                        http://doc.qt.io/qt-5/properties.html#dynamic-properties
                        Those can be set directly in Designer. ( the green big plus over list)
                        But it of cause depends on the full use case.

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

                        @mrjj

                        Yes, you are right. This is another solution to use setProperty and then property to get it. But I'm still want to make it by reimplementing classes.

                        1 Reply Last reply
                        1
                        • cloud21C cloud21

                          @Cobra91151
                          OH!
                          I will try...
                          Thank you very much.

                          Cobra91151C Offline
                          Cobra91151C Offline
                          Cobra91151
                          wrote on last edited by Cobra91151
                          #16

                          @cloud21

                          So, here is my solution with reimplemented QPushButton:

                          AppPushButton.h

                          #ifndef APPPUSHBUTTON_H
                          #define APPPUSHBUTTON_H
                          
                          #include <QPushButton>
                          #include <QFileInfo>
                          
                          class AppPushButton : public QPushButton
                          {
                          public:
                              explicit AppPushButton(QWidget *parent = Q_NULLPTR);
                              explicit AppPushButton(const QString &text, QWidget *parent = Q_NULLPTR);
                              void setButtonIcon(QString iconPath); // sets the icon by path
                              QString iconFileName(); // gets the icon name with extension
                              QString iconFileNameWithoutExtension(); // gets the icon name without extension
                              virtual ~AppPushButton();
                          
                          private:
                              QString myIconPath;
                              QFileInfo iconFileInfo;
                          };
                          
                          #endif // APPPUSHBUTTON_H
                          
                          

                          AppPushButton.cpp

                          #include "apppushbutton.h"
                          
                          AppPushButton::AppPushButton(QWidget *parent) : QPushButton(parent)
                          {
                          
                          }
                          
                          AppPushButton::AppPushButton(const QString &text, QWidget *parent) : QPushButton(text, parent)
                          {
                          
                          }
                          
                          void AppPushButton::setButtonIcon(QString iconPath)
                          {
                              myIconPath = iconPath;
                              setIcon(QIcon(myIconPath));
                          }
                          
                          QString AppPushButton::iconFileName()
                          {
                              iconFileInfo.setFile(myIconPath);
                              return iconFileInfo.fileName();
                          }
                          
                          QString AppPushButton::iconFileNameWithoutExtension()
                          {
                              iconFileInfo.setFile(myIconPath);
                              return iconFileInfo.baseName();
                          }
                          
                          AppPushButton::~AppPushButton()
                          {
                          
                          }
                          

                          Usage:

                          AppPushButton *myButton = new AppPushButton("Click me!", this);
                          myButton->setButtonIcon(":Icons/qt-icon.png");
                          qDebug() << "Icon filename with extension: " << myButton->iconFileName();
                          qDebug() << "Icon filename without extension: " << myButton->iconFileNameWithoutExtension();
                          

                          Result:
                          Icon filename with extension: "qt-icon.png"
                          Icon filename without extension: "qt-icon"

                          Happy coding!

                          cloud21C 1 Reply Last reply
                          2
                          • Cobra91151C Cobra91151

                            @cloud21

                            So, here is my solution with reimplemented QPushButton:

                            AppPushButton.h

                            #ifndef APPPUSHBUTTON_H
                            #define APPPUSHBUTTON_H
                            
                            #include <QPushButton>
                            #include <QFileInfo>
                            
                            class AppPushButton : public QPushButton
                            {
                            public:
                                explicit AppPushButton(QWidget *parent = Q_NULLPTR);
                                explicit AppPushButton(const QString &text, QWidget *parent = Q_NULLPTR);
                                void setButtonIcon(QString iconPath); // sets the icon by path
                                QString iconFileName(); // gets the icon name with extension
                                QString iconFileNameWithoutExtension(); // gets the icon name without extension
                                virtual ~AppPushButton();
                            
                            private:
                                QString myIconPath;
                                QFileInfo iconFileInfo;
                            };
                            
                            #endif // APPPUSHBUTTON_H
                            
                            

                            AppPushButton.cpp

                            #include "apppushbutton.h"
                            
                            AppPushButton::AppPushButton(QWidget *parent) : QPushButton(parent)
                            {
                            
                            }
                            
                            AppPushButton::AppPushButton(const QString &text, QWidget *parent) : QPushButton(text, parent)
                            {
                            
                            }
                            
                            void AppPushButton::setButtonIcon(QString iconPath)
                            {
                                myIconPath = iconPath;
                                setIcon(QIcon(myIconPath));
                            }
                            
                            QString AppPushButton::iconFileName()
                            {
                                iconFileInfo.setFile(myIconPath);
                                return iconFileInfo.fileName();
                            }
                            
                            QString AppPushButton::iconFileNameWithoutExtension()
                            {
                                iconFileInfo.setFile(myIconPath);
                                return iconFileInfo.baseName();
                            }
                            
                            AppPushButton::~AppPushButton()
                            {
                            
                            }
                            

                            Usage:

                            AppPushButton *myButton = new AppPushButton("Click me!", this);
                            myButton->setButtonIcon(":Icons/qt-icon.png");
                            qDebug() << "Icon filename with extension: " << myButton->iconFileName();
                            qDebug() << "Icon filename without extension: " << myButton->iconFileNameWithoutExtension();
                            

                            Result:
                            Icon filename with extension: "qt-icon.png"
                            Icon filename without extension: "qt-icon"

                            Happy coding!

                            cloud21C Offline
                            cloud21C Offline
                            cloud21
                            wrote on last edited by
                            #17

                            @Cobra91151
                            Nice.

                            1 Reply Last reply
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