QThread problem

[MrShahi]

Hello Everyone
I have a little problem and hope you will help me
My problem is that I wana start my process in the thread the reason is that I m moving a widget over a widget on timeout event of QTimer but problem is this whenevr there start more than one process ,then the movement of widget start jerk so stop all these I wana move my widget using QThread .................
But I have no idea how do it ?????????
Please suggest me some hints

[jpn]

1) There is no need to execute a process in a thread. It is a different process, it doesn't block the current process unless you use blocking waitXXX() methods.
2) Touching GUI in a worker thread is prohibited.

[MrShahi]

Thanx for reply JPN ..........
But my problem is still remain.......
I just wana stop jerking or flikering of widget when there exist more than one process,,,,,,
what I do for it

[jpn]

Could you provide a bit more details what do you actually do and how you do it?

[MrShahi]

yes this my move.h file

#ifndef MOVE_H
#define MOVE_H
#include<QWidget>
#include"ui_move.h"
class Move : public QWidget,public  Ui_Form 
{
 
   Q_OBJECT 
 
   public:
   	Move(QWidget *parent=0);
   	int x;;
int y;
int width;
   public slots:
 
   	void moveWidget();
 
};
#endif

#ifndef MOVE_H
#define MOVE_H
#include<QWidget>
#include"ui_move.h"
class Move : public QWidget,public  Ui_Form 
{

   Q_OBJECT 
   
   public:
   	Move(QWidget *parent=0);
   	int x;;
int y;
int width;
   public slots:
   	
   	void moveWidget();
   	
};
#endif

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and this my move.cpp file

#include"move.h"
#include "ui_move.h"
#include<QDebug>
#include<QTimer>
#include<QtGui>
#include<QPoint>
Move::Move(QWidget *parent) : QWidget(parent) 
{
 
	setupUi(this);
	x=950;
	y=10;
	int locx=1024*0/100;
int locy=768*80/100;
int w=1024*100/100;
 
int h=768*20/100;
	QString si("Sonu Shahi is great Enjoy ");
 
 
	this->setGeometry(locx,locy,w,h);
 
	QLabel *label=new QLabel( si,widget);
	label->setTextFormat (Qt::RichText );
	QFont font("Helvetica", 72, QFont::Bold);
 	label->setFont(font);
 
 QFontMetrics fm(font);
 width = fm.width(si);
 int pixelsHigh = fm.height();
 	qDebug()<<"size of si"<<si.size ()<<"width of font"<<width<<"hight"<<pixelsHigh;
	label->show();
	widget->setGeometry(950,55,width,pixelsHigh);
	QTimer *timer = new QTimer;
	connect(timer,SIGNAL(timeout()),this,SLOT(moveWidget()));
	timer->start(10);
	QPalette palette;
 
    			QBrush brush(Qt::red,Qt::SolidPattern);
 
    			palette.setBrush(QPalette::Active, QPalette::Window, brush);
    			this->setPalette(palette);
    			label->setPalette(palette);
    			widget->setPalette(palette);
    			/**********************/
    			QPalette palette1;
 
    			QBrush brush1(Qt::yellow,Qt::SolidPattern);
 
    			palette1.setBrush(QPalette::Active, QPalette::WindowText, brush1);
    			//this->setPalette(palette);
    			label->setPalette(palette1);
    			//widget->setPalette(palette);
    			/*******************/
 
}
void Move::moveWidget()
{
QPoint m=widget->pos();
if(x<=-width)
x=950;
 
x=x-1;
 
 
widget->move(x,y);
 
}

#include"move.h"
#include "ui_move.h"
#include<QDebug>
#include<QTimer>
#include<QtGui>
#include<QPoint>
Move::Move(QWidget *parent) : QWidget(parent) 
{

	setupUi(this);
	x=950;
	y=10;
	int locx=1024*0/100;
int locy=768*80/100;
int w=1024*100/100;

int h=768*20/100;
	QString si("Sonu Shahi is great Enjoy ");
	
	
	this->setGeometry(locx,locy,w,h);
	
	QLabel *label=new QLabel( si,widget);
	label->setTextFormat (Qt::RichText );
	QFont font("Helvetica", 72, QFont::Bold);
 	label->setFont(font);
 	
 QFontMetrics fm(font);
 width = fm.width(si);
 int pixelsHigh = fm.height();
 	qDebug()<<"size of si"<<si.size ()<<"width of font"<<width<<"hight"<<pixelsHigh;
	label->show();
	widget->setGeometry(950,55,width,pixelsHigh);
	QTimer *timer = new QTimer;
	connect(timer,SIGNAL(timeout()),this,SLOT(moveWidget()));
	timer->start(10);
	QPalette palette;

    			QBrush brush(Qt::red,Qt::SolidPattern);

    			palette.setBrush(QPalette::Active, QPalette::Window, brush);
    			this->setPalette(palette);
    			label->setPalette(palette);
    			widget->setPalette(palette);
    			/**********************/
    			QPalette palette1;

    			QBrush brush1(Qt::yellow,Qt::SolidPattern);

    			palette1.setBrush(QPalette::Active, QPalette::WindowText, brush1);
    			//this->setPalette(palette);
    			label->setPalette(palette1);
    			//widget->setPalette(palette);
    			/*******************/

}
void Move::moveWidget()
{
QPoint m=widget->pos();
if(x<=-width)
x=950;

x=x-1;


widget->move(x,y);

}

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I simply call this class in main .cpp and play it ......
and output is as good as I want .........
But whenever I embed this code into my movie player code where different movie are simultaniousely play within multiple widget this start jerking ...........thts why I m searching a logic or hint through which I stop jerking ...............
I think its enough for you ............................

[MrShahi]

Can anyone tell me how can smoothly play my scrollor...................

[MrShahi]

Hello guys , I have solved my problems
...................
but again there is little bit problem ...................
i.e the widget which is moving , sometimes becomes jerky and after sometime it scroll smoothly ...............why I don't know ????????
If any one can help me I'll appericiate him..........
Thanks