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  1. 1st May 2025, 11:13 #1
    ludoQtCreator
    ludoQtCreator is offline Novice
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    Default negative number

    Hi everyone, I can't read a negative number in DoubleSpinBox.

    I have a minimum of -1 and a maximum of -5.

    line : 197/198

    What should I do? Regards.

    Qt Code: 
    1. #include "modifcons.h"
    2.  
    3. ModifCons::ModifCons()
    4. {
    5.     qDebug() << "modifcons";
    6.  
    7.     m_modifConsignes = new Consignes(QString("settings/consignes.ini"), QSettings::IniFormat);
    8.  
    9.     m_window2 = new QWidget;
    10.     m_window2 ->setFixedSize(1000,600);
    11.     m_window2 ->setWindowTitle("Modification Consignes Gainable");
    12.     adjustSize();
    13.  
    14.     m_label2 = new QLabel(m_window2);
    15.     m_label2 ->setPixmap(QPixmap("/home/ludo/Qt/test2/build/images/modifCons.jpg"));
    16.     m_label2 ->showMaximized();
    17.  
    18.     select = new QComboBox(m_window2);
    19.     select ->setGeometry(50,50,900,120);
    20.     for (int i(0); i < 16; ++i)
    21.     {
    22.         select ->addItem(QString::number(i));
    23.     }
    24.     select ->setStyleSheet("font-size: 30px;");
    25.     select ->setItemText(0,"Consigne Ete/Hiver :");
    26.     select ->setItemText(1,"Consigne Canicule :");
    27.     select ->setItemText(2,"Consigne Bloquage Chauffage :");
    28.     select ->setItemText(3,"Consigne Mode Degivrage (Naturel ou Electrique) Chauffage :");
    29.     select ->setItemText(4,"Consigne Grande Vitesse Ventilation Exterieur Chauffage :");
    30.     select ->setItemText(5,"Consigne Grande Vitesse Ventilation Exterieur Froid :");
    31.     select ->setItemText(6,"Consigne Fin Degivrage Chauffage :");
    32.     select ->setItemText(7,"Consigne Depart Chauffage en Mode Chauffage :");
    33.     select ->setItemText(8,"Consigne Depart Froid en Mode Chauffage :");
    34.     select ->setItemText(9,"Consigne Petite Vitesse Ventilation Interieur Chauffage :");
    35.     select ->setItemText(10,"Consigne Depart Froid en Mode Froid :");
    36.     select ->setItemText(11,"Consigne Depart Chauffage en Mode Froid :");
    37.     select ->setItemText(12,"Consigne Petite Vitesse Ventilation Interieur Froid :"); 
    38.     select ->setItemText(13,"Consigne Depart Ventilation Interieur Chauffage :");
    39.     select ->setItemText(14,"Consigne Lancement Degivrage Froid :");
    40.     select ->setItemText(15,"Consigne Fin Degivrage Froid :");
    41.  
    42.     m_valid1 = new QPushButton("valid",m_window2);
    43.     m_valid1 ->setGeometry(50,180,240,120);
    44.     m_valid1 ->setStyleSheet("font-size: 30px;");
    45.  
    46.     m_quit1 = new QPushButton("quitter",m_window2);
    47.     m_quit1 ->setGeometry(710,440,240,120);
    48.     m_quit1 ->setStyleSheet("font-size: 30px;background-color: red");
    49.  
    50.     connect(m_valid1, &QPushButton::clicked, this, &ModifCons::selectCons);
    51.     connect(m_quit1,&QPushButton::clicked,m_quit1,[this](){m_window2 ->close(); delete m_window2;});
    52.  
    53.     m_window2 ->show();
    54. }
    55.  
    56. void ModifCons::adjustCons()
    57. {
    58.     m_selCons = new QDoubleSpinBox (m_window2);
    59.     m_selCons ->setStyleSheet("QDoubleSpinBox::down-button{width: 150} QDoubleSpinBox::up-button{width: 150}");
    60.     m_selCons ->setFont(QFont("Times", 20, QFont::Bold));
    61.     m_selCons ->setValue(consSelect);
    62.     m_selCons ->setRange(consMini,consMaxi);
    63.     m_selCons ->setSingleStep(0.1);
    64.     m_selCons ->setPrefix("Valeur: ");
    65.     m_selCons ->setSuffix(" °C");
    66.     m_selCons ->setGeometry(50,310,400,120);
    67.     m_selCons ->show();
    68.  
    69.     m_valid2 = new QPushButton("ok",m_window2);
    70.     m_valid2 ->setGeometry(50,440,240,120);
    71.     m_valid2 ->setStyleSheet("font-size: 30px;");
    72.     m_valid2 ->show();
    73.  
    74.     connect(m_valid2,&QPushButton::clicked,m_valid2,[this](){saveCons(); m_selCons ->close();});
    75. }
    76.  
    77. void ModifCons::selectCons()
    78. {
    79.     m_modifConsignes ->lireConsignesGainable();
    80.  
    81.     switch (select ->currentIndex())
    82.     {
    83.         case 0:
    84.             consSelect = m_modifConsignes ->consigneEteHiver; // 13.5
    85.             consMini = 10.0;
    86.             consMaxi = 16.0;
    87.             adjustCons();
    88.             m_valid1 ->hide();
    89.         break;
    90.  
    91.         case 1:
    92.             consSelect = m_modifConsignes ->consigneCanicule; // 30.0
    93.             consMini = 28.0;
    94.             consMaxi = 32.0;
    95.             adjustCons();
    96.             m_valid1 ->hide();
    97.         break;
    98.  
    99.         case 2:
    100.             consSelect = m_modifConsignes ->consigneBlocChauf; // 11.0
    101.             consMini = 9.0;
    102.             consMaxi = 13.0;
    103.             adjustCons();
    104.             m_valid1 ->hide();
    105.         break;
    106.  
    107.         case 3:
    108.             consSelect = m_modifConsignes ->consigneModeDegCh; // 5.0
    109.             consMini = 3.0;
    110.             consMaxi = 7.0;
    111.             adjustCons();
    112.             m_valid1 ->hide();
    113.         break;
    114.  
    115.         case 4:
    116.             consSelect = m_modifConsignes ->consigneGrVitExtCh; // 5.0
    117.             consMini = 3.0;
    118.             consMaxi = 7.0;
    119.             adjustCons();
    120.             m_valid1 ->hide();
    121.         break;
    122.  
    123.         case 5:
    124.             consSelect = m_modifConsignes ->consigneGrVitExtFr; // 20.0
    125.             consMini = 16.0;
    126.             consMaxi = 22.0;
    127.             adjustCons();
    128.             m_valid1 ->hide();
    129.         break;
    130.  
    131.         case 6:
    132.             consSelect = m_modifConsignes ->consigneFinDegCh; // 12.5
    133.             consMini = 10.5;
    134.             consMaxi = 14.5;
    135.             adjustCons();
    136.             m_valid1 ->hide();
    137.         break;
    138.  
    139.         case 7:
    140.             consSelect = m_modifConsignes ->consigneDepartChauffageEnChauffage; // 
    141.             consMini = 17.0;
    142.             consMaxi = 21.0;
    143.             adjustCons();
    144.             m_valid1 ->hide();
    145.         break;
    146.  
    147.         case 8:
    148.             consSelect = m_modifConsignes ->consigneDepartFroidEnChauffage; // 
    149.             consMini = 22.0;
    150.             consMaxi = 25.0;
    151.             adjustCons();
    152.             m_valid1 ->hide();
    153.         break;
    154.  
    155.         case 9:
    156.             consSelect = m_modifConsignes ->consignePeVitIntCh; // 23.5
    157.             consMini = 21.5;
    158.             consMaxi = 25.5;
    159.             adjustCons();
    160.             m_valid1 ->hide();
    161.         break;
    162.  
    163.         case 10:
    164.             consSelect = m_modifConsignes ->consigneDepartFroidEnFroid; // 
    165.             consMini = 21.0;
    166.             consMaxi = 25.0;
    167.             adjustCons();
    168.             m_valid1 ->hide();
    169.         break;
    170.  
    171.         case 11:
    172.             consSelect = m_modifConsignes ->consigneDepartChauffageEnFroid; // 
    173.             consMini = 17.0;
    174.             consMaxi = 21.0;
    175.             adjustCons();
    176.             m_valid1 ->hide();
    177.         break;
    178.  
    179.         case 12:
    180.             consSelect = m_modifConsignes ->consignePeVitIntFr; // 23.0
    181.             consMini = 21.0;
    182.             consMaxi = 25.0;
    183.             adjustCons();
    184.             m_valid1 ->hide();
    185.         break;
    186.  
    187.         case 13:
    188.             consSelect = m_modifConsignes ->consigneDepartVentIntCh; // 35.0
    189.             consMini = 30.0;
    190.             consMaxi = 40.0;
    191.             adjustCons();
    192.             m_valid1 ->hide();
    193.         break;
    194.  
    195.         case 14:
    196.             consSelect = m_modifConsignes ->consigneDegFr; // -3.0
    197.             consMini = -5;
    198.             consMaxi = -1;
    199.             adjustCons();
    200.             m_valid1 ->hide();
    201.         break;
    202.  
    203.         case 15:
    204.             consSelect = m_modifConsignes ->consigneFinDegFr; // 15.0
    205.             consMini = 13.0;
    206.             consMaxi = 17.0;
    207.             adjustCons();
    208.             m_valid1 ->hide();
    209.         break;
    210.  
    211.         default:
    212.         break;
    213.     }
    214. }
    215. }
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  2. 1st May 2025, 16:21 #2
    d_stranz's Avatar
    d_stranz
    d_stranz is offline Guru
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    Default Re: negative number

    Every time you call adjustCons() you are creating a new spin box and a new push button, and you are overwriting the pointers of any existing member variables named m_selCons and m_valid2. The old widgets assigned to those variables exist and are active, even though you have hidden them on screen by putting the new widgets in exactly the same places. So I don't know which spin box you are changing - an old one or a new one?

    I do not see anything in your code where you actually read the spin box value.

    Calling m_selCons->close() in the push button slot does not delete the widget, it just hides it.

    Why are you not using layouts to manage your widgets? Using setGeometry() is not correct; if you use layouts, then your widget layout will adjust automatically when the window is resized.
    <=== The Great Pumpkin says ===>
    Please use CODE tags when posting source code so it is more readable. Click "Go Advanced" and then the "#" icon to insert the tags. Paste your code between them.
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