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Thread: QTreeList.. Everything is ok but??

  1. 10th July 2008, 10:19 #1
    rrrrcem
    rrrrcem is offline Beginner
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    Default QTreeList.. Everything is ok but??

    All my code is correct. It compiles the program and it also works but
    I can none of my frames on the panel. I can see only an empty panel.

    Is there any incorrect thing in the code?? or may ı forget any "show " or "set" words??
    I couldn't see my error. Please help me.



    Qt Code: 
    1. #ifndef UI_NEW_H
    2. #define UI_NEW_H
    3.  
    4. #include <QtCore/QVariant>
    5. #include <QtGui/QAction>
    6. #include <QtGui/QApplication>
    7. #include <QtGui/QButtonGroup>
    8. #include <QtGui/QLabel>
    9. #include <QtGui/QWidget>
    10. #include "mylineedit.h"
    11. #include "mylistwidget.h"
    12. #include "mytreewidget.h"
    13.  
    14. class Ui_myFormDLG
    15. {
    16. public:
    17.     myTreeWidget *treeWidget;
    18.     myListWidget *listWidget;
    19.     QLabel *label_3;
    20.     QLabel *label;
    21.  
    22.     myLineEdit *lineEdit;
    23.  
    24.     void setupUi(QWidget *myFormDLG)
    25.     {
    26.     if (myFormDLG->objectName().isEmpty())
    27.         myFormDLG->setObjectName(QString::fromUtf8("myFormDLG"));
    28.     myFormDLG->resize(447, 359);
    29.  
    30. 	treeWidget = new myTreeWidget(myFormDLG);
    31.     treeWidget->setObjectName(QString::fromUtf8("treeWidget"));
    32.     treeWidget->setGeometry(QRect(10, 70, 271, 271));
    33.  
    34. 	QSizePolicy sizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    35.     sizePolicy.setHorizontalStretch(0);
    36.     sizePolicy.setVerticalStretch(0);
    37.     sizePolicy.setHeightForWidth(treeWidget->sizePolicy().hasHeightForWidth());
    38.  
    39. 	treeWidget->setSizePolicy(sizePolicy);
    40.     treeWidget->setAcceptDrops(true);
    41.     treeWidget->setDragDropOverwriteMode(true);
    42.  
    43. 	listWidget = new myListWidget(myFormDLG);
    44.     listWidget->setObjectName(QString::fromUtf8("listWidget"));
    45.     listWidget->setGeometry(QRect(290, 70, 141, 271));
    46.  
    47. 	QSizePolicy sizePolicy1(QSizePolicy::Ignored, QSizePolicy::Ignored);
    48.     sizePolicy1.setHorizontalStretch(0);
    49.     sizePolicy1.setVerticalStretch(0);
    50.     sizePolicy1.setHeightForWidth(listWidget->sizePolicy().hasHeightForWidth());
    51.  
    52. 	listWidget->setSizePolicy(sizePolicy1);
    53.     listWidget->setAcceptDrops(true);
    54.     listWidget->setDragEnabled(true);
    55.  
    56. 	label_3 = new QLabel(myFormDLG);
    57.     label_3->setObjectName(QString::fromUtf8("label_3"));
    58.     label_3->setGeometry(QRect(290, 50, 131, 21));
    59.     label = new QLabel(myFormDLG);
    60.     label->setObjectName(QString::fromUtf8("label"));
    61.     label->setGeometry(QRect(10, 46, 241, 21));
    62.  
    63.  
    64. 	lineEdit = new myLineEdit(myFormDLG);
    65.     lineEdit->setObjectName(QString::fromUtf8("lineEdit"));
    66.     lineEdit->setGeometry(QRect(80, 10, 351, 22));
    67.  
    68.     retranslateUi(myFormDLG);
    69.  
    70.     QMetaObject::connectSlotsByName(myFormDLG);
    71.     } // setupUi
    72.  
    73.     void retranslateUi(QWidget *myFormDLG)
    74.     {
    75.     myFormDLG->setWindowTitle(QApplication::translate("myFormDLG", "This is my form", 0, QApplication::UnicodeUTF8));
    76.     treeWidget->headerItem()->setText(0, QApplication::translate("myFormDLG", "One and only column", 0, QApplication::UnicodeUTF8));
    77.     treeWidget->clear();
    78.  
    79.     QTreeWidgetItem *__item = new QTreeWidgetItem(treeWidget);
    80.     __item->setText(0, QApplication::translate("myFormDLG", "Item 1", 0, QApplication::UnicodeUTF8));
    81.  
    82.     QTreeWidgetItem *__item1 = new QTreeWidgetItem(__item);
    83.     __item1->setText(0, QApplication::translate("myFormDLG", "Subitem 1.1", 0, QApplication::UnicodeUTF8));
    84.  
    85.     QTreeWidgetItem *__item2 = new QTreeWidgetItem(__item);
    86.     __item2->setText(0, QApplication::translate("myFormDLG", "Subitem 1.2", 0, QApplication::UnicodeUTF8));
    87.  
    88.     QTreeWidgetItem *__item3 = new QTreeWidgetItem(__item2);
    89.     __item3->setText(0, QApplication::translate("myFormDLG", "Subitem 1.2.1", 0, QApplication::UnicodeUTF8));
    90.  
    91.     QTreeWidgetItem *__item4 = new QTreeWidgetItem(treeWidget);
    92.     __item4->setText(0, QApplication::translate("myFormDLG", "Item 2", 0, QApplication::UnicodeUTF8));
    93.     listWidget->clear();
    94.  
    95.     QListWidgetItem *__item5 = new QListWidgetItem(listWidget);
    96.     __item5->setText(QApplication::translate("myFormDLG", "item 1", 0, QApplication::UnicodeUTF8));
    97.  
    98.     QListWidgetItem *__item6 = new QListWidgetItem(listWidget);
    99.     __item6->setText(QApplication::translate("myFormDLG", "item 2", 0, QApplication::UnicodeUTF8));
    100.  
    101.     QListWidgetItem *__item7 = new QListWidgetItem(listWidget);
    102.     __item7->setText(QApplication::translate("myFormDLG", "item 3", 0, QApplication::UnicodeUTF8));
    103.  
    104.     QListWidgetItem *__item8 = new QListWidgetItem(listWidget);
    105.     __item8->setText(QApplication::translate("myFormDLG", "item 4", 0, QApplication::UnicodeUTF8));
    106.  
    107.     QListWidgetItem *__item9 = new QListWidgetItem(listWidget);
    108.     __item9->setText(QApplication::translate("myFormDLG", "item 5", 0, QApplication::UnicodeUTF8));
    109.     label_3->setText(QApplication::translate("myFormDLG", "listWidget", 0, QApplication::UnicodeUTF8));
    110.     label->setText(QApplication::translate("myFormDLG", "treeWidget", 0, QApplication::UnicodeUTF8));
    111.  
    112.     Q_UNUSED(myFormDLG);
    113.     } // retranslateUi
    114.  
    115. };
    116.  
    117. namespace Ui {
    118.     class myFormDLG: public Ui_myFormDLG {};
    119. } // namespace Ui
    120.  
    121. #endif // UI_NEW_H
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    Qt Code: 
    1. #include "myqtapp.h"
    2.  
    3.  
    4. myQtApp::myQtApp(QWidget *parent): QWidget(parent)
    5. {
    6. 	//myQtApp parent2;
    7. 	ui.setupUi( this ); // sets up GUI
    8. 	//parent2.show();
    9.  
    10.  
    11. }
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    Qt Code: 
    1. #include <QtGui/QApplication>
    2. #include "mytreewidget.h"
    3.  
    4. int main(int argc, char *argv[])
    5. {
    6. 	QApplication a(argc, argv);
    7. 	myTreeWidget w;
    8. 	w.show();
    9. 	a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
    10. 	return a.exec();
    11.  
    12.  
    13.  
    14. }
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    Last edited by jpn; 11th July 2008 at 08:43. Reason: missing [code] tags
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  2. 11th July 2008, 00:17 #2
    jacek
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    Default Re: QTreeList.. Everything is ok but??

    What's the difference between myTreeWidget and myQtApp?
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  3. 11th July 2008, 08:26 #3
    rrrrcem
    rrrrcem is offline Beginner
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    Default Re: QTreeList.. Everything is ok but??

    Quote Originally Posted by jacek View Post
    What's the difference between myTreeWidget and myQtApp?
    In mytreewidget class, it makes new QTreeWidgetItem and set its text if parent is null - add top level item (this parent).

    but myqtapp class just sets up the GUI
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  4. 11th July 2008, 19:42 #4
    jacek
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    Default Re: QTreeList.. Everything is ok but??

    Quote Originally Posted by rrrrcem View Post
    In mytreewidget class, it makes new QTreeWidgetItem and set its text if parent is null - add top level item (this parent).

    but myqtapp class just sets up the GUI
    OK, but in main() you create the tree widget, not the myQtApp instance.
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