buttontester.cpp Example File | Qt Widgets 5.12.8

- Qt 5.12
- Qt Widgets
- Mouse Button Tester
- buttontester.cpp Example File
- Qt 5.12.8 Reference Documentation

# buttontester.cpp Example File

widgets/mousebuttons/buttontester.cpp

     /****************************************************************************
     **
     ** Copyright (C) 2016 The Qt Company Ltd.
     ** Copyright (C) 2016 Rick Stockton <rickstockton@reno-computerhelp.com>
     ** Contact: https://www.qt.io/licensing/
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:BSD$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and The Qt Company. For licensing terms
     ** and conditions see https://www.qt.io/terms-conditions. For further
     ** information use the contact form at https://www.qt.io/contact-us.
     **
     ** BSD License Usage
     ** Alternatively, you may use this file under the terms of the BSD license
     ** as follows:
     **
     ** "Redistribution and use in source and binary forms, with or without
     ** modification, are permitted provided that the following conditions are
     ** met:
     **   * Redistributions of source code must retain the above copyright
     **     notice, this list of conditions and the following disclaimer.
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     **     notice, this list of conditions and the following disclaimer in
     **     the documentation and/or other materials provided with the
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     **     contributors may be used to endorse or promote products derived
     **     from this software without specific prior written permission.
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     **
     ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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     ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
     **
     ** $QT_END_LICENSE$
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     ****************************************************************************/

     #include "buttontester.h"

     #include <QDebug>

     void ButtonTester::mousePressEvent(QMouseEvent *e)
     {
         int j = ButtonTester::buttonByNumber (e->button());
         QString result = "Mouse Press: raw button=" + QString::number(j)
                     + "  Qt=" + enumNameFromValue(e->button());
         QString buttonsString = ButtonTester::enumNamesFromMouseButtons(e->buttons());
         result += "\n heldbuttons " + buttonsString;
         qDebug() << result;
         this->setText(result);
         this->repaint();
     }

     void ButtonTester::mouseReleaseEvent(QMouseEvent *e)
     {
         int j = ButtonTester::buttonByNumber (e->button());
         QString result = "Mouse Release: raw button=" + QString::number(j)
                     + "  Qt=" + enumNameFromValue(e->button());
         QString buttonsString = ButtonTester::enumNamesFromMouseButtons(e->buttons());
         result += "\n heldbuttons " + buttonsString;
         qDebug() << result;
         this->setText(result);
         this->repaint();

     }

     void ButtonTester::mouseDoubleClickEvent(QMouseEvent *e)
     {
         int j = ButtonTester::buttonByNumber (e->button());
         QString result = "Mouse DoubleClick: raw button=" + QString::number(j)
                     + "  Qt=" + enumNameFromValue(e->button());
         QString buttonsString = ButtonTester::enumNamesFromMouseButtons(e->buttons());
         result += "\n heldbuttons" + buttonsString;
         qDebug() << result;
         this->setText(result);
     }

     #if QT_CONFIG(wheelevent)
     void ButtonTester::wheelEvent (QWheelEvent *e)
     {
         QString result;
         if (e->delta() > 0) {

             if (e->orientation() == Qt::Vertical) {
                 result = "Mouse Wheel Event: UP";
             } else {
                 result = "Mouse Wheel Event: LEFT";
             }
         } else if (e->delta() < 0) {
             if (e->orientation() == Qt::Vertical) {
                 result = "Mouse Wheel Event: DOWN";
             } else {
                 result = "Mouse Wheel Event: RIGHT";
             }
         }
         qDebug() << result;
         this->setText(result);
     }
     #endif

     int ButtonTester::buttonByNumber(const Qt::MouseButton button)
     {
         if (button == Qt::NoButton)      return 0;
         if (button == Qt::LeftButton)    return 1;
         if (button == Qt::RightButton)   return 2;
         if (button == Qt::MiddleButton)  return 3;

     /* Please note that Qt Button #4 corresponds to button #8 on all
      * platforms which EMULATE wheel events by creating button events
      * (Button #4 = Scroll Up; Button #5 = Scroll Down; Button #6 = Scroll
      * Left; and Button #7 = Scroll Right.) This includes X11, with both
      * Xlib and XCB.  So, the "raw button" for "Qt::BackButton" is
      * usually described as "Button #8".

      * If your platform supports "smooth scrolling", then, for the cases of
      * Qt::BackButton and higher, this program will show "raw button" with a
      * value which is too large. Subtract 4 to get the correct button ID for
      * your platform.
      */

         if (button == Qt::BackButton)    return 8;
         if (button == Qt::ForwardButton) return 9;
         if (button == Qt::TaskButton)    return 10;
         if (button == Qt::ExtraButton4)  return 11;
         if (button == Qt::ExtraButton5)  return 12;
         if (button == Qt::ExtraButton6)  return 13;
         if (button == Qt::ExtraButton7)  return 14;
         if (button == Qt::ExtraButton8)  return 15;
         if (button == Qt::ExtraButton9)  return 16;
         if (button == Qt::ExtraButton10) return 17;
         if (button == Qt::ExtraButton11) return 18;
         if (button == Qt::ExtraButton12) return 19;
         if (button == Qt::ExtraButton13) return 20;
         if (button == Qt::ExtraButton14) return 21;
         if (button == Qt::ExtraButton15) return 22;
         if (button == Qt::ExtraButton16) return 23;
         if (button == Qt::ExtraButton17) return 24;
         if (button == Qt::ExtraButton18) return 25;
         if (button == Qt::ExtraButton19) return 26;
         if (button == Qt::ExtraButton20) return 27;
         if (button == Qt::ExtraButton21) return 28;
         if (button == Qt::ExtraButton22) return 29;
         if (button == Qt::ExtraButton23) return 30;
         if (button == Qt::ExtraButton24) return 31;
         qDebug("QMouseShortcutEntry::addShortcut contained Invalid Qt::MouseButton value");
         return 0;
     }

     QString ButtonTester::enumNameFromValue(const Qt::MouseButton button)
     {
         if (button == Qt::NoButton)      return "NoButton";
         if (button == Qt::LeftButton)    return "LeftButton";
         if (button == Qt::RightButton)   return "RightButton";
         if (button == Qt::MiddleButton)  return "MiddleButton";
         if (button == Qt::BackButton)    return "BackButton";
         if (button == Qt::ForwardButton) return "ForwardButton";
         if (button == Qt::TaskButton)    return "TaskButton";
         if (button == Qt::ExtraButton4)  return "ExtraButton4";
         if (button == Qt::ExtraButton5)  return "ExtraButton5";
         if (button == Qt::ExtraButton6)  return "ExtraButton6";
         if (button == Qt::ExtraButton7)  return "ExtraButton7";
         if (button == Qt::ExtraButton8)  return "ExtraButton8";
         if (button == Qt::ExtraButton9)  return "ExtraButton9";
         if (button == Qt::ExtraButton10) return "ExtraButton10";
         if (button == Qt::ExtraButton11) return "ExtraButton11";
         if (button == Qt::ExtraButton12) return "ExtraButton12";
         if (button == Qt::ExtraButton13) return "ExtraButton13";
         if (button == Qt::ExtraButton14) return "ExtraButton14";
         if (button == Qt::ExtraButton15) return "ExtraButton15";
         if (button == Qt::ExtraButton16) return "ExtraButton16";
         if (button == Qt::ExtraButton17) return "ExtraButton17";
         if (button == Qt::ExtraButton18) return "ExtraButton18";
         if (button == Qt::ExtraButton19) return "ExtraButton19";
         if (button == Qt::ExtraButton20) return "ExtraButton20";
         if (button == Qt::ExtraButton21) return "ExtraButton21";
         if (button == Qt::ExtraButton22) return "ExtraButton22";
         if (button == Qt::ExtraButton23) return "ExtraButton23";
         if (button == Qt::ExtraButton24) return "ExtraButton24";
         qDebug("QMouseShortcutEntry::addShortcut contained Invalid Qt::MouseButton value");
         return "NoButton";
     }

     QString ButtonTester::enumNamesFromMouseButtons(const Qt::MouseButtons buttons)
     {
         QString returnText = "";
         if (buttons == Qt::NoButton)      return "NoButton";
         if (buttons & Qt::LeftButton)    returnText += "LeftButton ";
         if (buttons & Qt::RightButton)   returnText +=  "RightButton ";
         if (buttons & Qt::MiddleButton)  returnText +=  "MiddleButton ";
         if (buttons & Qt::BackButton)    returnText +=  "BackButton ";
         if (buttons & Qt::ForwardButton) returnText +=  "ForwardButton ";
         if (buttons & Qt::TaskButton)    returnText +=  "TaskButton ";
         if (buttons & Qt::ExtraButton4)  returnText +=  "ExtraButton4 ";
         if (buttons & Qt::ExtraButton5)  returnText +=  "ExtraButton5 ";
         if (buttons & Qt::ExtraButton6)  returnText +=  "ExtraButton6 ";
         if (buttons & Qt::ExtraButton7)  returnText +=  "ExtraButton7 ";
         if (buttons & Qt::ExtraButton8)  returnText +=  "ExtraButton8 ";
         if (buttons & Qt::ExtraButton9)  returnText +=  "ExtraButton9 ";
         if (buttons & Qt::ExtraButton10) returnText +=  "ExtraButton10 ";
         if (buttons & Qt::ExtraButton11) returnText +=  "ExtraButton11 ";
         if (buttons & Qt::ExtraButton12) returnText +=  "ExtraButton12 ";
         if (buttons & Qt::ExtraButton13) returnText +=  "ExtraButton13 ";
         if (buttons & Qt::ExtraButton14) returnText +=  "ExtraButton14 ";
         if (buttons & Qt::ExtraButton15) returnText +=  "ExtraButton15 ";
         if (buttons & Qt::ExtraButton16) returnText +=  "ExtraButton16 ";
         if (buttons & Qt::ExtraButton17) returnText +=  "ExtraButton17 ";
         if (buttons & Qt::ExtraButton18) returnText +=  "ExtraButton18 ";
         if (buttons & Qt::ExtraButton19) returnText +=  "ExtraButton19 ";
         if (buttons & Qt::ExtraButton20) returnText +=  "ExtraButton20 ";
         if (buttons & Qt::ExtraButton21) returnText +=  "ExtraButton21 ";
         if (buttons & Qt::ExtraButton22) returnText +=  "ExtraButton22 ";
         if (buttons & Qt::ExtraButton23) returnText +=  "ExtraButton23 ";
         if (buttons & Qt::ExtraButton24) returnText +=  "ExtraButton24 ";
         return returnText;
     }