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  1. 8th June 2012, 23:41 #1
    rimie23
    rimie23 is offline Intermediate user
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    Default Re: problem with DoubleSpinBox

    I am so sorry
    i know that my english is bad (it's not my native language )
    . I can only guess that you want a slot to be called after all three of the boxes are changed and not after each one gets a value but since you didn't show any code related to that, I'm just left with my guesses.
    yes that what i want ,i want "add object" when i enter numbers in the three boxes .

    I will give you all the code
    in my class Coordinate3dWidget.h i have like that
    Qt Code: 
    1. class Coordinate3dWidget : public QWidget
    2. {
    3.     Q_OBJECT
    4. public:
    5.     Coordinate3dWidget(QWidget *parent=0);
    6. public slots:
    7.     void setNewCoordinate(const Ogre::Vector3 &coordinate);
    8. signals:
    9.     void coordinateChanged(const Ogre::Vector3 &coordinate);
    10. private slots:
    11.     void onCoordinateChanged();
    12. private:
    13.  
    14. 	QDoubleSpinBox *sbx_cam;
    15.         QLabel *lx_cam;
    16.         QLabel *ly_cam;
    17.         QDoubleSpinBox *sby_cam;
    18.         QDoubleSpinBox *sbz_cam;
    19.         QLabel *lz_cam;
    20. 		QGroupBox *pos_cam;
    21.  
    22. };
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    in Coordinate3dWidget.cpp
    Qt Code: 
    1. #include <QLabel>
    2. #include <QHBoxLayout>
    3. #include <QToolButton>
    4. #include <QPushButton>
    5.  
    6. #include "coordinate3dwidget.h"
    7. #include"my_interface.h"
    8. //class MainWindow;
    9. Coordinate3dWidget::Coordinate3dWidget(QWidget *parent):
    10.     QWidget(parent)
    11. {
    12.  
    13.             pos_cam = new QGroupBox(this);
    14.             pos_cam->setObjectName(QString::fromUtf8("pos_cam"));
    15.             pos_cam->setGeometry(QRect(10, 50, 191, 71));
    16.             pos_cam->setTitle("Position");
    17.  
    18.           sbx_cam = new QDoubleSpinBox(pos_cam);
    19.             sbx_cam->setObjectName(QString::fromUtf8("sbx_cam"));
    20.             sbx_cam->setGeometry(QRect(10, 40, 51, 22));
    21. 			sbx_cam->setRange(-5000, 5000);
    22.           lx_cam = new QLabel(pos_cam);
    23.             lx_cam->setObjectName(QString::fromUtf8("lx_cam"));
    24.             lx_cam->setGeometry(QRect(10, 20, 46, 13));
    25.            lx_cam->setText(QApplication::translate("MainWindow", "X :", 0, QApplication::UnicodeUTF8));
    26.  
    27.             sby_cam = new QDoubleSpinBox(pos_cam);
    28.             sby_cam->setObjectName(QString::fromUtf8("sby_cam"));
    29.             sby_cam->setGeometry(QRect(70, 40, 51, 22));
    30. 			sby_cam->setRange(-5000, 5000);
    31.           ly_cam = new QLabel(pos_cam);
    32.             ly_cam->setObjectName(QString::fromUtf8("ly_cam"));
    33.             ly_cam->setGeometry(QRect(70, 20, 46, 13));
    34.             ly_cam->setText(QApplication::translate("MainWindow", "Y :", 0, QApplication::UnicodeUTF8));
    35. 			sbz_cam = new QDoubleSpinBox(pos_cam);
    36.             sbz_cam->setObjectName(QString::fromUtf8("sbz_cam"));
    37.             sbz_cam->setGeometry(QRect(130, 40, 51, 22));
    38. 			sbz_cam->setRange(-5000, 5000);
    39.           lz_cam = new QLabel(pos_cam);
    40.             lz_cam->setObjectName(QString::fromUtf8("lz_cam"));
    41.             lz_cam->setGeometry(QRect(130, 20, 46, 13));
    42.           lz_cam->setText(QApplication::translate("MainWindow", "Z :", 0, QApplication::UnicodeUTF8));
    43.  
    44. 		    connect(sbx_cam, SIGNAL(/*valueChanged*/editingFinished()), this, SLOT(onCoordinateChanged()));
    45. 	         connect(sby_cam, SIGNAL(/*valueChanged*/editingFinished()), this, SLOT(onCoordinateChanged()));
    46. 	         connect(sbz_cam, SIGNAL(/*valueChanged*/editingFinished()), this, SLOT(onCoordinateChanged()));
    47. }
    48.  
    49. void Coordinate3dWidget::setNewCoordinate(const Ogre::Vector3 &coordinate)
    50. {
    51.     blockSignals(true);
    52.     sbx_cam->setValue(coordinate.x);
    53.     sby_cam->setValue(coordinate.y);
    54.     sbz_cam->setValue(coordinate.z);
    55.     blockSignals(false);
    56. }
    57.  
    58. void Coordinate3dWidget::onCoordinateChanged()
    59. {
    60.     Ogre::Vector3 newCoord(sbx_cam->value(),
    61.                            sby_cam->value(),
    62.                            sbz_cam->value());
    63.     emit coordinateChanged(newCoord);
    64. }
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    and in my mainwindow
    Qt Code: 
    1. MainWindow::MainWindow()
    2. {
    3.     ogreWidget = new OgreWidget(this);
    4.     setCentralWidget(ogreWidget);
    5.     createDockWidget();
    6.  
    7. }
    8. void MainWindow::createDockWidget()
    9. {
    10. page_14 = new Coordinate3dWidget;
    11. page_14->setGeometry(QRect(0, 0, 211, 250));
    12. connect(page_14, SIGNAL(coordinateChanged(const Ogre::Vector3&)),
    13.             ogreWidget, SLOT(setCameraPosition(const Ogre::Vector3&)));
    14.     connect(ogreWidget, SIGNAL(cameraPositionChanged(const Ogre::Vector3&)),
    15.             page_14, SLOT(setNewCoordinate(const Ogre::Vector3&)));
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    in my class OgreWidget i defined slot
    Qt Code: 
    1. public slots:
    2.         void setCameraPosition(const Ogre::Vector3 &pos);
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    Qt Code: 
    1. in setCameraPosition: when i entre the numbers in the three boxes i must execute this slot to add object in the position entred 
    2. void  QOgreWidget::setCameraPosition(const Ogre::Vector3 &pos)
    3. { 
    4.  
    5. 	 CamNode=  mSceneMgr->getRootSceneNode()->createChildSceneNode();
    6. 	ent_cam = mSceneMgr->createEntity( Ogre::SceneManager:: PT_CUBE);
    7. 	Ogre::MaterialPtr material = Ogre::MaterialManager::getSingleton().create("green", "General");
    8. 	material->getTechnique( 0 )->getPass( 0 )->setAmbient(1, 1, 0);
    9. 	ent_cam->setMaterial(material);
    10. 	mSceneMgr->getRootSceneNode()->createChildSceneNode();
    11. 	CamNode->setPosition(pos);
    12. 	CamNode->attachObject(ent_cam);
    13.  
    14.  
    15. }
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  2. 9th June 2012, 09:00 #2
    wysota's Avatar
    wysota
    wysota is offline The "Q"
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    Default Re: problem with DoubleSpinBox

    Ok, now the situation is clear.

    First of all please do consider using layouts in your widget and derive your widget from QGroupBox and not QWidget.

    Qt Code: 
    1. Coordinate3dWidget::Coordinate3dWidget(QWidget *parent):
    2.     QGroupBox(parent)
    3. {
    4.     setTitle("Position");
    5.     QGridLayout *l = new QGridLayout(this);
    6.     lx_cam = new QLabel;
    7.     sbx_cam = new QDoubleSpinBox;
    8.     sbx_cam->setRange(-5000, 5000);
    9.  
    10.     lx_cam->setText(tr("X"));
    11.     l->addWidget(lx_cam, 0,0);
    12.     l->addWidget(sbx_cam, 1, 0);
    13.  
    14.     ly_cam = new QLabel;
    15.     sby_cam = new QDoubleSpinBox;
    16.     sby_cam->setRange(-5000, 5000);
    17.     ly_cam->setText(tr("Y"));
    18.     l->addWidget(ly_cam, 0,1);
    19.     l->addWidget(sby_cam, 1, 1);
    20.  
    21.     lz_cam = new QLabel;
    22.     sbz_cam = new QDoubleSpinBox;
    23.     sbz_cam->setRange(-5000, 5000);
    24.     lz_cam->setText(tr("Z"));
    25.     l->addWidget(lx_cam, 0,2);
    26.     l->addWidget(sbz_cam, 1, 2);
    27.  
    28. 		    connect(sbx_cam, SIGNAL(valueChanged(double)), this, SLOT(onCoordinateChanged()));
    29. 		    connect(sby_cam, SIGNAL(valueChanged(double)), this, SLOT(onCoordinateChanged()));
    30. 		    connect(sbz_cam, SIGNAL(valueChanged(double)), this, SLOT(onCoordinateChanged()));
    31. }
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    Isn't that clearer and doesn't it work better?

    Now for your main problem... here is how your "onCoordinateChanged()" which looks like:
    Qt Code: 
    1. void Coordinate3dWidget::onCoordinateChanged()
    2. {
    3.     Ogre::Vector3 newCoord(sbx_cam->value(),
    4.                            sby_cam->value(),
    5.                            sbz_cam->value());
    6.     emit coordinateChanged(newCoord);
    7. }
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    works:
    1. create a new coordinate vector
    2. emit the vector

    Now, it should look like this:
    1. if sbx_cam, sby_cam, sbz_cam don't have a valid value, return
    2. otherwise create a coordinate vector
    3. and emit it

    The bad thing is I have no idea how you intend to determine that a value is not valid for you. In my opinion every real value is valid so you need a separate button outside your widget to accept the value entered in those three boxes together.
    I would also suggest that you provide a method for reading the current value of the coordinate vector instead of only emitting a signal with it.
    Your biological and technological distinctiveness will be added to our own. Resistance is futile.

    Please ask Qt related questions on the forum and not using private messages or visitor messages.

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