[Qt-interest] Drawing rectangular

[Yuvaraj R]

still i am not getting

i am getting following things in log


QPainter::begin: Paint device returned engine == 0, type: 1

QPainter::drawRects: Painter not active

QPainter::end: Painter not active, aborted

QPainter::setPen: Painter not active

QPainter::drawRects: Painter not active


Thanks


Yuvaraj R


On Mon, Sep 21, 2009 at 3:59 PM, Samuel Rødal <sroedal at trolltech.com> wrote:

> Yuvaraj R wrote:
>
>> Hi
>>
>>  I have overrrided the QTextBrowser class like
>>
>> *text_browser.h*
>>
>>
>> #ifndef TEXT_BROWSER_H
>>
>> #define TEXT_BROWSER_H
>>
>> #include <QTextBrowser>
>>
>> #include <QPaintEvent>
>>
>> class text_browser:public QTextBrowser
>>
>> {
>>
>> public:
>>
>> text_browser(QWidget *parent=0);
>>
>> void paintEvent(QPaintEvent *e);
>>
>> };
>>
>> #endif // TEXT_BROWSER_H
>>
>>
>> *text_browser.cpp*
>>
>> #include "text_browser.h"
>>
>> #include <QMessageBox>
>>
>> text_browser::text_browser(QWidget *parent):QTextBrowser(parent)
>>
>> {
>>
>> }
>>
>> void text_browser::paintEvent(QPaintEvent *e)
>>
>> {
>>
>>              e->accept();
>>
>> }
>>
>>
>>
>> you told that call base class paint event to paint the text browser.
>> any mistake is there in derived class of text_browser.
>>
>>
>> Sorry  English is not  my first language .
>> Thanks
>>
>> Yuvaraj R
>>
>
> To call the base class paint event, your text browser class' paint event
> should look like this:
>
> void text_browser::paintEvent(QPaintEvent *e)
> {
>        QTextBrowser::paintEvent(e);
>        QPainter painter;
>        painter.setPen(Qt::red);
>        painter.drawRect(100,100,100,100);
> }
>
> I don't think calling accept() makes any difference for paint events.
>
> --
> Samuel
>
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