Hi, I'm having issues with a Label which is located on a QWigdet which has a gradient background. When the wiget changes the text the background is not transparent any more until I resize the window.
I guess I need to call a method after the text has been set but I can't
find the right one I guess.
> package org.ufacekit.ui.qt.example;
>
> import com.trolltech.qt.gui.QApplication;
> import com.trolltech.qt.gui.QBrush;
> import com.trolltech.qt.gui.QColor;
> import com.trolltech.qt.gui.QGridLayout;
> import com.trolltech.qt.gui.QLabel;
> import com.trolltech.qt.gui.QLinearGradient;
> import com.trolltech.qt.gui.QMainWindow;
> import com.trolltech.qt.gui.QPaintEvent;
> import com.trolltech.qt.gui.QPainter;
> import com.trolltech.qt.gui.QPushButton;
> import com.trolltech.qt.gui.QWidget;
>
> public class QTGradientTest extends QMainWindow {
> QLabel label;
>
> public QTGradientTest() {
> QWidget widget = new QWidget();
> QGridLayout layout = new QGridLayout();
> label = new QLabel();
> label.setText("Here");
> layout.addWidget(label);
>
> QPushButton button = new QPushButton();
> button.setText("Change");
> button.clicked.connect(this, "clicked()");
> layout.addWidget(button);
>
> widget.setLayout(layout);
>
> setCentralWidget(widget);
> }
>
> private void clicked() {
> label.setText("Hello World!");
> }
>
> @Override
> protected void paintEvent(QPaintEvent evt) {
> QPainter painter = new QPainter(this);
>
> QLinearGradient gradient = new
> QLinearGradient(0,0,0,evt.rect().height() / 2);
> gradient.setColorAt(0, new QColor(255,0,0));
> gradient.setColorAt(1, new QColor(0,255,0));
>
> QBrush brush = new QBrush(gradient);
>
> painter.fillRect(evt.rect(), brush);
>
> painter.end();
> }
>
>
>
> /**
> * @param args
> */
> public static void main(final String[] args) {
> try {
> QApplication.initialize(args);
> new QTGradientTest().show();
> QApplication.exec();
> } catch (Exception e) {
> e.printStackTrace();
> }
>
> }
> }
Tom
<<inline: screen.tiff>>
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