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Qwidget plugin

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  • jsulmJ jsulm

    @hjohn Include #include"mainwindow.h" in your cpp file not header file.

    H Offline
    H Offline
    hjohn
    wrote on last edited by
    #9

    @jsulm it makes no difference.

    jsulmJ 1 Reply Last reply
    0
    • H hjohn

      @jsulm it makes no difference.

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #10

      @hjohn That's because your pro file is missing mainwindow.*

      HEADERS += \
          widgetplugins.h
          ?
      
      SOURCES += \
          widgetplugins.cpp
          ?
      

      But onw question: is this main window part of your plugin or main application?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

      H 1 Reply Last reply
      0
      • jsulmJ jsulm

        @hjohn That's because your pro file is missing mainwindow.*

        HEADERS += \
            widgetplugins.h
            ?
        
        SOURCES += \
            widgetplugins.cpp
            ?
        

        But onw question: is this main window part of your plugin or main application?

        H Offline
        H Offline
        hjohn
        wrote on last edited by
        #11

        @jsulm it is partof main application.I want to use it in plugin.

        jsulmJ 1 Reply Last reply
        0
        • H hjohn

          @jsulm it is partof main application.I want to use it in plugin.

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #12

          @hjohn Why do you want to access the main window directly from the plug-in? It would be better to communicate via signals/slots.

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          H 1 Reply Last reply
          0
          • H hjohn

            @raven-worx I don't think so

            raven-worxR Offline
            raven-worxR Offline
            raven-worx
            Moderators
            wrote on last edited by
            #13

            @hjohn said in Qwidget plugin:

            @raven-worx I don't think so

            you don't think what?!
            If you want to use it you have to tell the compiler/linker tell where to find it...

            --- SUPPORT REQUESTS VIA CHAT WILL BE IGNORED ---
            If you have a question please use the forum so others can benefit from the solution in the future

            1 Reply Last reply
            0
            • jsulmJ jsulm

              @hjohn Why do you want to access the main window directly from the plug-in? It would be better to communicate via signals/slots.

              H Offline
              H Offline
              hjohn
              wrote on last edited by
              #14

              @jsulm I am implementing qwidgetplugin with reference of http://doc.qt.io/qt-5/qtdesigner-customwidgetplugin-example.html

              jsulmJ 1 Reply Last reply
              0
              • H hjohn

                @jsulm I am implementing qwidgetplugin with reference of http://doc.qt.io/qt-5/qtdesigner-customwidgetplugin-example.html

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #15

                @hjohn You are aware that this link describes how to implement a plug-in for QtDesigner? Do you want a plug-in for QtDesigner or for your application? And in that example I can't see the plug-in using the main window. So again: why do you want to access main window from your plug-in directly?

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                H 1 Reply Last reply
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                • jsulmJ jsulm

                  @hjohn You are aware that this link describes how to implement a plug-in for QtDesigner? Do you want a plug-in for QtDesigner or for your application? And in that example I can't see the plug-in using the main window. So again: why do you want to access main window from your plug-in directly?

                  H Offline
                  H Offline
                  hjohn
                  wrote on last edited by hjohn
                  #16

                  @jsulm yeah i want plug-in for Qt designer.i have implemented same way as mentioned. Here is aq misunderstanding of "mainwindow" name. I have just give different name to the class.the definition and characteristics are same.

                  mainwindow.h

                  #ifndef MAINWINDOW_H
                  #define MAINWINDOW_H
                  
                  #include<QWidget>
                  #include<QObject>
                  #include<QtUiPlugin/qdesignerexportwidget>
                  class MainWindow : public QWidget
                  {
                      Q_OBJECT
                  public:
                      explicit MainWindow(QWidget *parent = 0);
                  protected:
                      void paintEvent(QPaintEvent *event) override;
                  
                  };
                  
                  #endif // MAINWINDOW_H
                  
                  

                  mainwindow.cpp

                  #include "mainwindow.h"
                  #include <QMouseEvent>
                  #include <QPainter>
                  #include <QTime>
                  #include <QTimer>
                  
                  MainWindow::MainWindow(QWidget *parent)
                      : QWidget(parent)
                  {
                      QTimer *timer = new QTimer(this);
                      connect(timer, &QTimer::timeout, this, QOverload<>::of(&QWidget::update));
                      timer->start(1000);
                  
                      setWindowTitle(tr("Analog Clock"));
                      resize(200, 200);
                  }
                  
                  
                  
                  
                  void MainWindow::paintEvent(QPaintEvent *)
                  {
                      static const QPoint hourHand[3] = {
                          QPoint(7, 8),
                          QPoint(-7, 8),
                          QPoint(0, -40)
                      };
                      static const QPoint minuteHand[3] = {
                          QPoint(7, 8),
                          QPoint(-7, 8),
                          QPoint(0, -70)
                      };
                  
                      QColor hourColor(127, 0, 127);
                      QColor minuteColor(0, 127, 127, 191);
                  
                      int side = qMin(width(), height());
                      QTime time = QTime::currentTime();
                  
                      QPainter painter(this);
                      painter.setRenderHint(QPainter::Antialiasing);
                      painter.translate(width() / 2, height() / 2);
                      painter.scale(side / 200.0, side / 200.0);
                  
                      painter.setPen(Qt::NoPen);
                      painter.setBrush(hourColor);
                  
                      painter.save();
                      painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
                      painter.drawConvexPolygon(hourHand, 3);
                      painter.restore();
                  
                      painter.setPen(hourColor);
                  
                      for (int i = 0; i < 12; ++i) {
                          painter.drawLine(88, 0, 96, 0);
                          painter.rotate(30.0);
                      }
                  
                      painter.setPen(Qt::NoPen);
                      painter.setBrush(minuteColor);
                  
                      painter.save();
                      painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
                      painter.drawConvexPolygon(minuteHand, 3);
                      painter.restore();
                  
                      painter.setPen(minuteColor);
                  
                      for (int j = 0; j < 60; ++j) {
                          if ((j % 5) != 0)
                              painter.drawLine(92, 0, 96, 0);
                          painter.rotate(6.0);
                      }
                  }
                  
                  
                  jsulmJ 1 Reply Last reply
                  0
                  • H hjohn

                    @jsulm yeah i want plug-in for Qt designer.i have implemented same way as mentioned. Here is aq misunderstanding of "mainwindow" name. I have just give different name to the class.the definition and characteristics are same.

                    mainwindow.h

                    #ifndef MAINWINDOW_H
                    #define MAINWINDOW_H
                    
                    #include<QWidget>
                    #include<QObject>
                    #include<QtUiPlugin/qdesignerexportwidget>
                    class MainWindow : public QWidget
                    {
                        Q_OBJECT
                    public:
                        explicit MainWindow(QWidget *parent = 0);
                    protected:
                        void paintEvent(QPaintEvent *event) override;
                    
                    };
                    
                    #endif // MAINWINDOW_H
                    
                    

                    mainwindow.cpp

                    #include "mainwindow.h"
                    #include <QMouseEvent>
                    #include <QPainter>
                    #include <QTime>
                    #include <QTimer>
                    
                    MainWindow::MainWindow(QWidget *parent)
                        : QWidget(parent)
                    {
                        QTimer *timer = new QTimer(this);
                        connect(timer, &QTimer::timeout, this, QOverload<>::of(&QWidget::update));
                        timer->start(1000);
                    
                        setWindowTitle(tr("Analog Clock"));
                        resize(200, 200);
                    }
                    
                    
                    
                    
                    void MainWindow::paintEvent(QPaintEvent *)
                    {
                        static const QPoint hourHand[3] = {
                            QPoint(7, 8),
                            QPoint(-7, 8),
                            QPoint(0, -40)
                        };
                        static const QPoint minuteHand[3] = {
                            QPoint(7, 8),
                            QPoint(-7, 8),
                            QPoint(0, -70)
                        };
                    
                        QColor hourColor(127, 0, 127);
                        QColor minuteColor(0, 127, 127, 191);
                    
                        int side = qMin(width(), height());
                        QTime time = QTime::currentTime();
                    
                        QPainter painter(this);
                        painter.setRenderHint(QPainter::Antialiasing);
                        painter.translate(width() / 2, height() / 2);
                        painter.scale(side / 200.0, side / 200.0);
                    
                        painter.setPen(Qt::NoPen);
                        painter.setBrush(hourColor);
                    
                        painter.save();
                        painter.rotate(30.0 * ((time.hour() + time.minute() / 60.0)));
                        painter.drawConvexPolygon(hourHand, 3);
                        painter.restore();
                    
                        painter.setPen(hourColor);
                    
                        for (int i = 0; i < 12; ++i) {
                            painter.drawLine(88, 0, 96, 0);
                            painter.rotate(30.0);
                        }
                    
                        painter.setPen(Qt::NoPen);
                        painter.setBrush(minuteColor);
                    
                        painter.save();
                        painter.rotate(6.0 * (time.minute() + time.second() / 60.0));
                        painter.drawConvexPolygon(minuteHand, 3);
                        painter.restore();
                    
                        painter.setPen(minuteColor);
                    
                        for (int j = 0; j < 60; ++j) {
                            if ((j % 5) != 0)
                                painter.drawLine(92, 0, 96, 0);
                            painter.rotate(6.0);
                        }
                    }
                    
                    
                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #17

                    @hjohn Then please add your mainwindow.h|cpp to the pro file as @raven-worx already suggested.

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

                    H 1 Reply Last reply
                    0
                    • jsulmJ jsulm

                      @hjohn Then please add your mainwindow.h|cpp to the pro file as @raven-worx already suggested.

                      H Offline
                      H Offline
                      hjohn
                      wrote on last edited by hjohn
                      #18

                      @jsulm okay thanks.. i will try as u have guided.
                      one last question how Qdesigner is differ from normal gui application.

                      jsulmJ 1 Reply Last reply
                      0
                      • H hjohn

                        @jsulm okay thanks.. i will try as u have guided.
                        one last question how Qdesigner is differ from normal gui application.

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #19

                        @hjohn It is simply a Qt application. But it provides a plug-in interface to add functionality to it. I mean functionality specific for QtDesigner.

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                        H 1 Reply Last reply
                        0
                        • jsulmJ jsulm

                          @hjohn It is simply a Qt application. But it provides a plug-in interface to add functionality to it. I mean functionality specific for QtDesigner.

                          H Offline
                          H Offline
                          hjohn
                          wrote on last edited by
                          #20

                          @jsulm Qtdesigner does not contain any .ui file.i mean it is custom implementation .am i right?

                          In other plugins example the project having subproject.for ex: gui application is the parent project and plugin lib contain in sub-project.Can we use same method in this qtdesigner plugin.

                          jsulmJ 1 Reply Last reply
                          0
                          • H hjohn

                            @jsulm Qtdesigner does not contain any .ui file.i mean it is custom implementation .am i right?

                            In other plugins example the project having subproject.for ex: gui application is the parent project and plugin lib contain in sub-project.Can we use same method in this qtdesigner plugin.

                            jsulmJ Offline
                            jsulmJ Offline
                            jsulm
                            Lifetime Qt Champion
                            wrote on last edited by
                            #21

                            @hjohn I'm not sure I understand the question.
                            QtDesigner is a Qt application. You can download its source code if you need it.
                            The examples simply combine the main app and the plug-in in one project. In your case you can't do this as you would need to add your plug-in to QtDesigner source code. But it is not necessary, just follow the example you posted before.

                            https://forum.qt.io/topic/113070/qt-code-of-conduct

                            H 1 Reply Last reply
                            2
                            • jsulmJ jsulm

                              @hjohn I'm not sure I understand the question.
                              QtDesigner is a Qt application. You can download its source code if you need it.
                              The examples simply combine the main app and the plug-in in one project. In your case you can't do this as you would need to add your plug-in to QtDesigner source code. But it is not necessary, just follow the example you posted before.

                              H Offline
                              H Offline
                              hjohn
                              wrote on last edited by
                              #22

                              @jsulm thanks..:)

                              1 Reply Last reply
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