Hi,
How stupied one can be :-) I didn't pass the parent when creating the
child widgets.
Tom
Tom Schindl schrieb:
> Hi,
>
> On the weekend I tried to write some custom layouts to match layouts I
> already know from SWT but I'm somehow failing miserably.
>
> Problem 1: The time of setting the layout to a QWidget
> ======================================================
>
> ----------8<----------
> QWidget center = new QWidget();
> setCentralWidget(center);
>
> QTFillLayout layout = new QTFillLayout();
> center.setLayout(layout);
>
> QWidget widget = new QWidget();
> layout.addWidget(widget,"");
>
> QTFillLayout layout2 = new QTFillLayout();
> widget.setLayout(layout2);
>
> QLabel label = new QLabel();
> label.setText("BlaBla");
> layout2.addWidget(label, "");
>
> QPushButton button = new QPushButton();
> button.setText("B1");
> layout2.addWidget(button,"");
> ----------8<----------
>
> Renderes an empty window but when I rearrange the setting of the layout
> like this:
>
> ----------8<----------
> QWidget center = new QWidget();
> setCentralWidget(center);
>
> QTFillLayout layout = new QTFillLayout();
>
> QWidget widget = new QWidget();
> layout.addWidget(widget,"");
>
> QTFillLayout layout2 = new QTFillLayout();
> widget.setLayout(layout2);
>
> QLabel label = new QLabel();
> label.setText("BlaBla");
> layout2.addWidget(label, "");
>
> QPushButton button = new QPushButton();
> button.setText("B1");
> layout2.addWidget(button,"");
>
> layout.addWidget(widget,"");
> center.setLayout(layout);
> ----------8<----------
>
> The layout works.
>
> Problem 2: Using layout#addWidget(QWidget)
> ==========================================
>
> Fragment 1 from above gives:
>
> "Invalid memory access of location 00000000 eip=08d15e36"
>
> Fragment 2 from above gives:
>
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.sizeHint(QLayoutItem.java:70)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.sizeHint(QTFillLayout.java:78)
>> at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
>> at com.trolltech.qt.gui.QWidget.show(QWidget.java:2134)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:39)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.setGeometry(QLayoutItem.java:62)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.setGeometry(QTFillLayout.java:68)
>> at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
>> at com.trolltech.qt.gui.QWidget.show(QWidget.java:2134)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:39)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.setGeometry(QLayoutItem.java:62)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.setGeometry(QTFillLayout.java:68)
>> at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
>> at com.trolltech.qt.gui.QWidget.show(QWidget.java:2134)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:39)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.setGeometry(QLayoutItem.java:62)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.setGeometry(QTFillLayout.java:68)
>> at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
>> at com.trolltech.qt.gui.QWidget.show(QWidget.java:2134)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:39)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.setGeometry(QLayoutItem.java:62)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.setGeometry(QTFillLayout.java:68)
>> at com.trolltech.qt.gui.QWidget.__qt_show(Native Method)
>> at com.trolltech.qt.gui.QWidget.show(QWidget.java:2134)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:39)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.sizeHint(QLayoutItem.java:70)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.sizeHint(QTFillLayout.java:78)
>> at com.trolltech.qt.gui.QApplication.exec(Native Method)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:40)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.setGeometry(QLayoutItem.java:62)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.setGeometry(QTFillLayout.java:68)
>> at com.trolltech.qt.gui.QApplication.exec(Native Method)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:40)
>> QtJambi: Exception pending in native code
>> Exception in thread "main" com.trolltech.qt.QNoNativeResourcesException:
>> Function call on incomplete object of type:
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper
>> at
>> com.trolltech.qt.gui.QLayoutItem$ConcreteWrapper.sizeHint(QLayoutItem.java:70)
>> at
>> org.ufacekit.ui.qt.core.layouts.QTFillLayout.sizeHint(QTFillLayout.java:78)
>> at com.trolltech.qt.gui.QApplication.exec(Native Method)
>> at
>> org.ufacekit.ui.qt.example.TestFillLayout.main(TestFillLayout.java:40)
>
> The example i used is
> http://doc.trolltech.com/4.4/layouts-borderlayout.html, I don't know C++
> but I think I translated this appropriately into Java.
>
> Tom
>
>
>
> ------------------------------------------------------------------------
>
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