Программное добавление элемента на форму

/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: [url]http://www.qt-project.org/[/url]
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** [url]http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html[/url].
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** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
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**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
**
****************************************************************************/
 
#ifndef QOBJECT_H
#define QOBJECT_H
 
#ifndef QT_NO_QOBJECT
 
#include <QtCore/qobjectdefs.h>
#include <QtCore/qstring.h>
#include <QtCore/qbytearray.h>
#include <QtCore/qlist.h>
#ifdef QT_INCLUDE_COMPAT
#include <QtCore/qcoreevent.h>
#endif
#include <QtCore/qscopedpointer.h>
 
QT_BEGIN_HEADER
 
QT_BEGIN_NAMESPACE
 
QT_MODULE(Core)
 
class QEvent;
class QTimerEvent;
class QChildEvent;
struct QMetaObject;
class QVariant;
class QObjectPrivate;
class QObject;
class QThread;
class QWidget;
#ifndef QT_NO_REGEXP
class QRegExp;
#endif
#ifndef QT_NO_USERDATA
class QObjectUserData;
#endif
 
typedef QList<QObject*> QObjectList;
 
Q_CORE_EXPORT void qt_qFindChildren_helper(const QObject *parent, const QString &name, const QRegExp *re,
                                           const QMetaObject &mo, QList<void *> *list);
Q_CORE_EXPORT QObject *qt_qFindChild_helper(const QObject *parent, const QString &name, const QMetaObject &mo);
 
class
#if defined(__INTEL_COMPILER) && defined(Q_OS_WIN)
Q_CORE_EXPORT
#endif
QObjectData {
public:
    virtual ~QObjectData() = 0;
    QObject *q_ptr;
    QObject *parent;
    QObjectList children;
 
    uint isWidget : 1;
    uint pendTimer : 1;
    uint blockSig : 1;
    uint wasDeleted : 1;
    uint ownObjectName : 1;
    uint sendChildEvents : 1;
    uint receiveChildEvents : 1;
    uint inEventHandler : 1; //only used if QT_JAMBI_BUILD
    uint inThreadChangeEvent : 1;
    uint hasGuards : 1; //true iff there is one or more QPointer attached to this object
    uint unused : 22;
    int postedEvents;
    QMetaObject *metaObject; // assert dynamic
};
 
 
class Q_CORE_EXPORT QObject
{
    Q_OBJECT
    Q_PROPERTY(QString objectName READ objectName WRITE setObjectName)
    Q_DECLARE_PRIVATE(QObject)
 
public:
    Q_INVOKABLE explicit QObject(QObject *parent=0);
    virtual ~QObject();
 
    virtual bool event(QEvent *);
    virtual bool eventFilter(QObject *, QEvent *);
 
#ifdef qdoc
    static QString tr(const char *sourceText, const char *comment = 0, int n = -1);
    static QString trUtf8(const char *sourceText, const char *comment = 0, int n = -1);
    virtual const QMetaObject *metaObject() const;
    static const QMetaObject staticMetaObject;
#endif
#ifdef QT_NO_TRANSLATION
    static QString tr(const char *sourceText, const char *, int)
        { return QString::fromLatin1(sourceText); }
    static QString tr(const char *sourceText, const char * = 0)
        { return QString::fromLatin1(sourceText); }
#ifndef QT_NO_TEXTCODEC
    static QString trUtf8(const char *sourceText, const char *, int)
        { return QString::fromUtf8(sourceText); }
    static QString trUtf8(const char *sourceText, const char * = 0)
        { return QString::fromUtf8(sourceText); }
#endif
#endif //QT_NO_TRANSLATION
 
    QString objectName() const;
    void setObjectName(const QString &name);
 
    inline bool isWidgetType() const { return d_ptr->isWidget; }
 
    inline bool signalsBlocked() const { return d_ptr->blockSig; }
    bool blockSignals(bool b);
 
    QThread *thread() const;
    void moveToThread(QThread *thread);
 
    int startTimer(int interval);
    void killTimer(int id);
 
    template<typename T>
    inline T findChild(const QString &aName = QString()) const
    { return static_cast<T>(qt_qFindChild_helper(this, aName, reinterpret_cast<T>(0)->staticMetaObject)); }
 
    template<typename T>
    inline QList<T> findChildren(const QString &aName = QString()) const
    {
        QList<T> list;
        union {
            QList<T> *typedList;
            QList<void *> *voidList;
        } u;
        u.typedList = &list;
        qt_qFindChildren_helper(this, aName, 0, reinterpret_cast<T>(0)->staticMetaObject, u.voidList);
        return list;
    }
 
#ifndef QT_NO_REGEXP
    template<typename T>
    inline QList<T> findChildren(const QRegExp &re) const
    {
        QList<T> list;
        union {
            QList<T> *typedList;
            QList<void *> *voidList;
        } u;
        u.typedList = &list;
        qt_qFindChildren_helper(this, QString(), &re, reinterpret_cast<T>(0)->staticMetaObject, u.voidList);
        return list;
    }
#endif
 
#ifdef QT3_SUPPORT
    QT3_SUPPORT QObject *child(const char *objName, const char *inheritsClass = 0,
                   bool recursiveSearch = true) const;
    QT3_SUPPORT QObjectList queryList(const char *inheritsClass = 0,
                          const char *objName = 0,
                          bool regexpMatch = true,
                          bool recursiveSearch = true) const;
#endif
    inline const QObjectList &children() const { return d_ptr->children; }
 
    void setParent(QObject *);
    void installEventFilter(QObject *);
    void removeEventFilter(QObject *);
 
 
    static bool connect(const QObject *sender, const char *signal,
                        const QObject *receiver, const char *member, Qt::ConnectionType =
#ifdef qdoc
                        Qt::AutoConnection
#else
#ifdef QT3_SUPPORT
                        Qt::AutoCompatConnection
#else
                        Qt::AutoConnection
#endif
#endif
        );
        
    static bool connect(const QObject *sender, const QMetaMethod &signal,
                        const QObject *receiver, const QMetaMethod &method,
                        Qt::ConnectionType type = 
#ifdef qdoc
                        Qt::AutoConnection
#else
#ifdef QT3_SUPPORT
                        Qt::AutoCompatConnection
#else
                        Qt::AutoConnection
#endif
#endif
        );
 
    inline bool connect(const QObject *sender, const char *signal,
                        const char *member, Qt::ConnectionType type =
#ifdef qdoc
                        Qt::AutoConnection
#else
#ifdef QT3_SUPPORT
                        Qt::AutoCompatConnection
#else
                        Qt::AutoConnection
#endif
#endif
        ) const;
 
    static bool disconnect(const QObject *sender, const char *signal,
                           const QObject *receiver, const char *member);
    static bool disconnect(const QObject *sender, const QMetaMethod &signal,
                           const QObject *receiver, const QMetaMethod &member);
    inline bool disconnect(const char *signal = 0,
                           const QObject *receiver = 0, const char *member = 0)
        { return disconnect(this, signal, receiver, member); }
    inline bool disconnect(const QObject *receiver, const char *member = 0)
        { return disconnect(this, 0, receiver, member); }
 
    void dumpObjectTree();
    void dumpObjectInfo();
 
#ifndef QT_NO_PROPERTIES
    bool setProperty(const char *name, const QVariant &value);
    QVariant property(const char *name) const;
    QList<QByteArray> dynamicPropertyNames() const;
#endif // QT_NO_PROPERTIES
 
#ifndef QT_NO_USERDATA
    static uint registerUserData();
    void setUserData(uint id, QObjectUserData* data);
    QObjectUserData* userData(uint id) const;
#endif // QT_NO_USERDATA
 
Q_SIGNALS:
    void destroyed(QObject * = 0);
 
public:
    inline QObject *parent() const { return d_ptr->parent; }
 
    inline bool inherits(const char *classname) const
        { return const_cast<QObject *>(this)->qt_metacast(classname) != 0; }
 
public Q_SLOTS:
    void deleteLater();
 
protected:
    QObject *sender() const;
    int senderSignalIndex() const;
    int receivers(const char* signal) const;
 
    virtual void timerEvent(QTimerEvent *);
    virtual void childEvent(QChildEvent *);
    virtual void customEvent(QEvent *);
 
    virtual void connectNotify(const char *signal);
    virtual void disconnectNotify(const char *signal);
 
#ifdef QT3_SUPPORT
public:
    QT3_SUPPORT_CONSTRUCTOR QObject(QObject *parent, const char *name);
    inline QT3_SUPPORT void insertChild(QObject *o)
        { if (o) o->setParent(this); }
    inline QT3_SUPPORT void removeChild(QObject *o)
        { if (o) o->setParent(0); }
    inline QT3_SUPPORT bool isA(const char *classname) const
        { return qstrcmp(classname, metaObject()->className()) == 0; }
    inline QT3_SUPPORT const char *className() const { return metaObject()->className(); }
    inline QT3_SUPPORT const char *name() const { return objectName().latin1_helper(); }
    inline QT3_SUPPORT const char *name(const char *defaultName) const
        { QString s = objectName(); return s.isEmpty()?defaultName:s.latin1_helper(); }
    inline QT3_SUPPORT void setName(const char *aName) { setObjectName(QLatin1String(aName)); }
protected:
    inline QT3_SUPPORT bool checkConnectArgs(const char *signal,
                                  const QObject *,
                                  const char *member)
        { return QMetaObject::checkConnectArgs(signal, member); }
    static inline QT3_SUPPORT QByteArray normalizeSignalSlot(const char *signalSlot)
        { return QMetaObject::normalizedSignature(signalSlot); }
#endif
 
protected:
    QObject(QObjectPrivate &dd, QObject *parent = 0);
 
protected:
    QScopedPointer<QObjectData> d_ptr;
 
    static const QMetaObject staticQtMetaObject;
 
    friend struct QMetaObject;
    friend class QApplication;
    friend class QApplicationPrivate;
    friend class QCoreApplication;
    friend class QCoreApplicationPrivate;
    friend class QWidget;
    friend class QThreadData;
 
private:
    Q_DISABLE_COPY(QObject)
    Q_PRIVATE_SLOT(d_func(), void _q_reregisterTimers(void *))
};
 
inline bool QObject::connect(const QObject *asender, const char *asignal,
                             const char *amember, Qt::ConnectionType atype) const
{ return connect(asender, asignal, this, amember, atype); }
 
#ifndef QT_NO_USERDATA
class Q_CORE_EXPORT QObjectUserData {
public:
    virtual ~QObjectUserData();
};
#endif
 
#ifdef qdoc
T qFindChild(const QObject *o, const QString &name = QString());
QList<T> qFindChildren(const QObject *oobj, const QString &name = QString());
QList<T> qFindChildren(const QObject *o, const QRegExp &re);
#endif
#ifdef QT_DEPRECATED
template<typename T>
inline QT_DEPRECATED T qFindChild(const QObject *o, const QString &name = QString())
{ return o->findChild<T>(name); }
 
template<typename T>
inline QT_DEPRECATED QList<T> qFindChildren(const QObject *o, const QString &name = QString())
{
    return o->findChildren<T>(name);
}
 
#ifndef QT_NO_REGEXP
template<typename T>
inline QT_DEPRECATED QList<T> qFindChildren(const QObject *o, const QRegExp &re)
{
    return o->findChildren<T>(re);
}
#endif
 
#endif //QT_DEPRECATED
 
template <class T>
inline T qobject_cast(QObject *object)
{
#if !defined(QT_NO_QOBJECT_CHECK)
    reinterpret_cast<T>(object)->qt_check_for_QOBJECT_macro(*reinterpret_cast<T>(object));
#endif
    return static_cast<T>(reinterpret_cast<T>(object)->staticMetaObject.cast(object));
}
 
template <class T>
inline T qobject_cast(const QObject *object)
{
#if !defined(QT_NO_QOBJECT_CHECK)
    reinterpret_cast<T>(object)->qt_check_for_QOBJECT_macro(*reinterpret_cast<T>(const_cast<QObject *>(object)));
#endif
    return static_cast<T>(reinterpret_cast<T>(object)->staticMetaObject.cast(object));
}
 
 
template <class T> inline const char * qobject_interface_iid()
{ return 0; }
 
#ifndef Q_MOC_RUN
#  define Q_DECLARE_INTERFACE(IFace, IId) \
    template <> inline const char *qobject_interface_iid<IFace *>() \
    { return IId; } \
    template <> inline IFace *qobject_cast<IFace *>(QObject *object) \
    { return reinterpret_cast<IFace *>((object ? object->qt_metacast(IId) : 0)); } \
    template <> inline IFace *qobject_cast<IFace *>(const QObject *object) \
    { return reinterpret_cast<IFace *>((object ? const_cast<QObject *>(object)->qt_metacast(IId) : 0)); }
#endif // Q_MOC_RUN
 
#ifndef QT_NO_DEBUG_STREAM
Q_CORE_EXPORT QDebug operator<<(QDebug, const QObject *);
#endif
 
QT_END_NAMESPACE
 
QT_END_HEADER
 
#endif
 
#endif // QOBJECT_H

QObject *qt_qFindChild_helper(const QObject *parent, const QString &name, const QMetaObject &mo)
{
    if (!parent)
        return 0;
    const QObjectList &children = parent->children();
    QObject *obj;
    int i;
    for (i = 0; i < children.size(); ++i) {
        obj = children.at(i);
        if (mo.cast(obj) && (name.isNull() || obj->objectName() == name))
            return obj;
    }
    for (i = 0; i < children.size(); ++i) {
        obj = qt_qFindChild_helper(children.at(i), name, mo);
        if (obj)
            return obj;
    }
    return 0;
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QtGui>
#include <QList>
#include <myqlabelclick.h>
 
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);
}
 
MainWindow::~MainWindow()
{
    delete ui;
}
 
void MainWindow::on_pushButton_clicked()//создаём динамически GroupBox и собстенные QLabel с событием - "нажатие кнопки мышки"
{
    if (ui->centralWidget->findChild<QGroupBox *>("NewGB_Lables")) {        
        QGroupBox *temp=ui->centralWidget->findChild<QGroupBox *>("NewGB_Lables");
        temp->deleteLater();
    }
    QGroupBox  *gb=new QGroupBox(tr("NewGB_Lables"), this);
    gb->setGeometry(190, 100, (ui->lcdNumber_2->value()*60)+45, 70);
    gb->setObjectName("NewGB_Lables");
    gb->setParent(ui->centralWidget);
    gb->show();
 
    arrLB.clear();
    for (int var = 0; var < ui->lcdNumber_2->value(); ++var) {        
        MyQlabelClick *lb=new MyQlabelClick();
        lb->setGeometry((var*65)+10, 30, 60, 20);
        lb->setMargin(5);
        lb->setParent(gb);
        lb->setText(QLocale().toString(var)+ "_lable");
        lb->setObjectName(QLocale().toString(var)+ "_lable");
        lb->setStyleSheet("background-color: rgb(177, 177, 177);");
        connect(lb, SIGNAL(mouse_press()), this, SLOT(mouse_press_BT()));
        lb->show();
        arrLB<<lb;
    }
}
 
void MainWindow::newElement(int value)//динамическое создание GroupBox и размещение динамически созданных кнопок
{
    arrPB.clear();
    for (int var = 0; var < ui->centralWidget->children().count(); ++var)
    {
        if (ui->centralWidget->children().at(var)->objectName()=="newGB") {
            ui->centralWidget->children().at(var)->deleteLater();
        } else {
        }
    }
    QGroupBox *gb=new QGroupBox(tr("test"));
    gb->setObjectName("newGB");
    gb->setGeometry(20, 20, 140, (value*40)+20);
    gb->setParent(ui->centralWidget);
    gb->setStyleSheet("color: green;" "background-color: rgb(222, 222, 222);");
    gb->show();
    for (int i = 0; i < value; ++i) {
        QPushButton *pb=new QPushButton();
        pb->setObjectName("New_BTN_"+QLocale().toString(i));
        pb->setStyleSheet("background-color: rgb(177, 177, 177);" "color: black;");
        pb->setParent(gb);
        pb->setText("New_BTN_"+QLocale().toString(i));
        pb->setGeometry(35, (i*40)+ 5, 90, 25);
        connect(pb, SIGNAL(pressed()), this, SLOT(newPB_clicked()));
        pb->show();
        arrPB<<pb;
    }
    tempPosition=0;
    arrPB.at(0)->setText("SELECTED");
    arrPB.at(0)->setStyleSheet("background-color: black;");
}
 
void MainWindow::on_dial_valueChanged(int value)//изменение значения "крутилки"
{
    ui->lcdNumber->display(value);
    ui->verticalSlider->setMaximum(value-1);
    newElement(value);
    ui->verticalSlider->setValue(0);
}
 
void MainWindow::newPB_clicked()//срабатывает при нажатии динамически созданной кнопки
{
    ui->label_2->setText(sender()->objectName());
}
 
void MainWindow::on_verticalSlider_sliderMoved(int position)//изменение вертикального слайдера
{
    if (ui->centralWidget->findChild<QGroupBox *>("newGB")) {
        QGroupBox *qgb=ui->centralWidget->findChild<QGroupBox *>("newGB");
        QPushButton *pB=qobject_cast<QPushButton *>(qgb->children().at(position));
        pB->setText("SELECTED");
        pB->setStyleSheet("background-color: black;");
 
 
        arrPB.at(tempPosition)->setText("New_BTN_"+QLocale().toString(tempPosition));
        arrPB.at(tempPosition)->setStyleSheet("background-color: rgb(177, 177, 177);" "color: black;");
        tempPosition=position;
    } else {
        QMessageBox msgBox;
        msgBox.setText("First! Create GroupBox!");
        msgBox.exec();
        ui->verticalSlider->setValue(0);
    }
}
 
void MainWindow::on_horizontalSlider_sliderMoved(int position)//изменение горизонтального слайдера
{
    ui->lcdNumber_2->display(position);
}
 
void MainWindow::mouse_press_BT()//событие - нажатие кнопки мыши(срабатывает на любую кнопку)
{
    MyQlabelClick *temp=qobject_cast<MyQlabelClick *>(sender());
    if (temp->text()!="SELECTED") {
        temp->setText("SELECTED");
        temp->setStyleSheet("background-color: green;");
    } else {
        temp->setText(temp->objectName());
        temp->setStyleSheet("background-color: rgb(177, 177, 177);");
    }
}

#ifndef MAINWINDOW_H
#define MAINWINDOW_H
 
#include <QMainWindow>
#include <QtGui>
 
namespace Ui {
class MainWindow;
}
 
class MainWindow : public QMainWindow
{
    Q_OBJECT
    
public:
    explicit MainWindow(QWidget *parent = 0);
    ~MainWindow();
 
    void newElement(int value);
    QList<QPushButton *> arrPB;
    QList<QLabel *> arrLB;
    QPushButton *tempPB;
    int tempPosition;
 
private slots:
    void on_pushButton_clicked();
    void on_dial_valueChanged(int value);
    void newPB_clicked();
    void on_verticalSlider_sliderMoved(int position);
    void on_horizontalSlider_sliderMoved(int position);
    void mouse_press_BT();
    //void mouse_DB_click();
 
protected:
 
 
private:
    Ui::MainWindow *ui;
 
};
 
#endif // MAINWINDOW_H

#include "myqlabelclick.h"
#include <QtGui>
 
MyQlabelClick::MyQlabelClick(QWidget *parent) :
    QLabel(parent)
{
}
 
void MyQlabelClick::mousePressEvent(QMouseEvent *ev)
{
    this->clickBT=ev->button();
    emit mouse_press();
}
 
void MyQlabelClick::mouseDoubleClickEvent(QMouseEvent *)
{
    emit mouse_DB_click();
}

#ifndef MYQLABELCLICK_H
#define MYQLABELCLICK_H
 
#include <QLabel>
#include <QMouseEvent>
#include <QEvent>
 
class MyQlabelClick : public QLabel
{
    Q_OBJECT
public:
    explicit MyQlabelClick(QWidget *parent = 0);
 
    void mousePressEvent(QMouseEvent *ev);
    void mouseDoubleClickEvent(QMouseEvent *);
 
    Qt::MouseButton clickBT;
    
signals:
 
    void mouse_press();
    void mouse_DB_click();
    
public slots:
    
};
 
#endif // MYQLABELCLICK_H