ToolTip....

**marcel** · 1st August 2007, 14:53

Can I see the code?

**merry** · 1st August 2007, 15:05

Yaa Sure...

QButton.cpp //Subclass of QPushButton

Qt Code:

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#include "QButton.h"
#include <QEvent>
#include <QHelpEvent>
 
 
MyToolTipButton::MyToolTipButton(QWidget *parent ): QPushButton(parent)
{
 
	MyToolTipButton1 = new QPushButton();
	MyToolTipButton1->setText("abc");
}
 
 
 
bool MyToolTipButton::event(QEvent* e)
{
      QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
	 if(!mCustomToolTip)
	 //mCustomToolTip = new CustomToolTip();
	 MyToolTipButton1->show();
	 e->accept();
	 return true;
}
	else 
	{
	 if(mCustomToolTip)
	  MyToolTipButton1->hide();
	 }
 
   return QWidget::event(e);
 
}

#include "QButton.h"
#include <QEvent>
#include <QHelpEvent>


MyToolTipButton::MyToolTipButton(QWidget *parent ): QPushButton(parent)
{

	MyToolTipButton1 = new QPushButton();
	MyToolTipButton1->setText("abc");
}



bool MyToolTipButton::event(QEvent* e)
{
      QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
	 if(!mCustomToolTip)
	 //mCustomToolTip = new CustomToolTip();
	 MyToolTipButton1->show();
	 e->accept();
	 return true;
}
	else 
	{
	 if(mCustomToolTip)
	  MyToolTipButton1->hide();
	 }
   
   return QWidget::event(e);
   
}

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QButton.h

Qt Code:

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#ifndef QBUTTON_H
#define QBUTTON_H
 
#include <QPushButton>
#include <QEvent>
#include "CustomToolTip.h"
 
class CustomToolTip;
class MyToolTipButton : public QPushButton
{
   Q_OBJECT
	public:
	MyToolTipButton(QWidget *parent =0);
 
	public:
	QPushButton *MyToolTipButton1;
 
	protected:
	bool event(QEvent* e);
 
 
	public:
	 CustomToolTip *mCustomToolTip;
 
	};
 
 
#endif

#ifndef QBUTTON_H
#define QBUTTON_H

#include <QPushButton>
#include <QEvent>
#include "CustomToolTip.h"

class CustomToolTip;
class MyToolTipButton : public QPushButton
{
   Q_OBJECT
	public:
	MyToolTipButton(QWidget *parent =0);
	
	public:
	QPushButton *MyToolTipButton1;
	
	protected:
	bool event(QEvent* e);
	
	
	public:
	 CustomToolTip *mCustomToolTip;

	};


#endif

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CustomToolTip.h

Qt Code:

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#ifndef CustomToolTip_H
#define CustomToolTip_H
#include <QToolTip>
 
class CustomToolTip : public QToolTip
{
     Q_OBJECT
	 public:
	 CustomToolTip();
	 public:
	 void paintEvent() ;
 
};
 
#endif

#ifndef CustomToolTip_H
#define CustomToolTip_H
#include <QToolTip>

class CustomToolTip : public QToolTip
{
     Q_OBJECT
	 public:
	 CustomToolTip();
	 public:
	 void paintEvent() ;
	 
};

#endif

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CustomToolTip.cpp

Qt Code:

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#include "CustomToolTip.h"
#include <QPainter>
 
void CustomToolTip::paintEvent() 
 {
      QPainter p(this);
	 p.fillRect(rect(), Qt::transparent );
	 p.setBrush(Qt::red);
	 p.drawEllipse(rect()); 
}

#include "CustomToolTip.h"
#include <QPainter>

void CustomToolTip::paintEvent() 
 {
      QPainter p(this);
	 p.fillRect(rect(), Qt::transparent );
	 p.setBrush(Qt::red);
	 p.drawEllipse(rect()); 
}

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and also there is an error
CustomToolTip.cpp:15: error: no matching function for call to 'QPainter::QPainter(CustomToolTip* const)'

**marcel** · 1st August 2007, 15:13

You have a lot of errors there!
Most important:
1. Remove the QPushButton member from the QPushButton subclass.
2. paintEvent is virtual protected. Define it as such.
Also, it has a QPaintEvent* parameter.

Regards

**merry** · 1st August 2007, 15:24

After doing all the things u said , I Still got these three errors

moc_CustomToolTip.cpp:37: error: 'staticMetaObject' is not a member of 'QToolTip'
moc_CustomToolTip.cpp: In member function 'virtual void* CustomToolTip::qt_metacast(const char*)':
moc_CustomToolTip.cpp:53: error: 'qt_metacast' is not a member of 'QToolTip'
moc_CustomToolTip.cpp: In member function 'virtual int CustomToolTip::qt_metacall(QMetaObject::Call, int, void**)':
moc_CustomToolTip.cpp:58: error: 'qt_metacall' is not a member of 'QToolTip'

**fullmetalcoder** · 1st August 2007, 15:26

QToolTip is not a QObject... remove the Q_OBJECT macro...

**marcel** · 1st August 2007, 15:29

In this case change the inheritance from QToolTip to QWidget.
And in the constructor of CustomToolTip:

Qt Code:

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setWindowFlags(Qt::ToolTip);

setWindowFlags(Qt::ToolTip);

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Regards

**merry** · 2nd August 2007, 09:17

Hi Marcel

I had done all that what u said , It gives no error but ,only showing a Main window with a button and toolTip of that button in a rectangle but not showing the ToolTip in an elliplse.

I debug the code , And on debugging I found that Its not entering in this function

Qt Code:

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if(he && he->type() == QEvent::ToolTip)
		{
	         if(!mCustomToolTip)
		   mCustomToolTip = new CustomToolTip(this);
		   mCustomToolTip->show();
		   e->accept();
		  return true;
		  }

if(he && he->type() == QEvent::ToolTip)
		{
	         if(!mCustomToolTip)
		   mCustomToolTip = new CustomToolTip(this);
		   mCustomToolTip->show();
		   e->accept();
		  return true;
		  }

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Pls help What can I do now.

Thanx

**merry** · 2nd August 2007, 11:47

Pls...Pls............help

**vermarajeev** · 3rd August 2007, 08:21

Originally Posted by merry

Pls...Pls............help

Firstly, in the CustomToolTip class do this

Qt Code:

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CustomToolTip::CustomToolTip( QWidget * parent )
:QWidget(parent)
{
	setWindowFlags(Qt::ToolTip);	
	resize( 50, 50 );	
}

CustomToolTip::CustomToolTip( QWidget * parent )
:QWidget(parent)
{
	setWindowFlags(Qt::ToolTip);	
	resize( 50, 50 );	
}

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Keep the mouse cursor stable on the PushButton and then move, a red ecllipse will appear on top left corner.

Works fine for me.

**merry** · 3rd August 2007, 08:36

Thanx Mr Rajeev For helping me ..

I do the same as u said but still not showing tooltip..

Pls review my code once , and Also tells me Is am doin somthin Wrong...

CustomToolTip.cpp

Qt Code:

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#include "CustomToolTip.h"
#include <QPainter>
 
 CustomToolTip::CustomToolTip( QWidget * parent )
     :QWidget(parent)
{
    setWindowFlags(Qt::ToolTip);    
    resize(50,50);   
} 	 
 
 
void CustomToolTip::paintEvent(QPaintEvent *e) 
 {
     QPainter p(this);
	 p.fillRect(rect(), Qt::transparent );
	 p.setBrush(Qt::red);
	 p.drawEllipse(rect()); 
}

#include "CustomToolTip.h"
#include <QPainter>

 CustomToolTip::CustomToolTip( QWidget * parent )
     :QWidget(parent)
{
    setWindowFlags(Qt::ToolTip);    
    resize(50,50);   
} 	 


void CustomToolTip::paintEvent(QPaintEvent *e) 
 {
     QPainter p(this);
	 p.fillRect(rect(), Qt::transparent );
	 p.setBrush(Qt::red);
	 p.drawEllipse(rect()); 
}

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QButton.cpp

Qt Code:

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#include "QButton.h"
#include <QEvent>
#include <QHelpEvent>
 
MyToolTipButton::MyToolTipButton(QWidget *parent=0)
 {
  setMouseTracking(true);
  FileRecovery=new QPushButton(0);
  RawRecovery=new QPushButton(0);
  FileRecovery->setFocusPolicy(Qt::StrongFocus);
 }
 
bool MyToolTipButton::event(QEvent* e)
{
	QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
	  if(!mCustomToolTip)
	  mCustomToolTip = new CustomToolTip(0);
	  mCustomToolTip->show();
	  e->accept();
	  return true;
	}
	else 
	{
	  if(mCustomToolTip)
	  mCustomToolTip->hide();
	 }
      return QWidget::event(e);
}

#include "QButton.h"
#include <QEvent>
#include <QHelpEvent>

MyToolTipButton::MyToolTipButton(QWidget *parent=0)
 {
  setMouseTracking(true);
  FileRecovery=new QPushButton(0);
  RawRecovery=new QPushButton(0);
  FileRecovery->setFocusPolicy(Qt::StrongFocus);
 }

bool MyToolTipButton::event(QEvent* e)
{
	QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
	  if(!mCustomToolTip)
	  mCustomToolTip = new CustomToolTip(0);
	  mCustomToolTip->show();
	  e->accept();
	  return true;
	}
	else 
	{
	  if(mCustomToolTip)
	  mCustomToolTip->hide();
	 }
      return QWidget::event(e);
}

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MainWindow.cpp

Qt Code:

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#include "MainWindow.h"
#include "QButton.h"
#include <QtGui>
 
 
MainWindow::MainWindow()
{
    QWidget *centralWidget = new QWidget;
	button=new MyToolTipButton(0);
    centralWidget->setFixedSize(500,300);
   	button->FileRecovery = new QPushButton();
	button->FileRecovery->setGeometry(20,20,121,121);
	button->FileRecovery->setFixedSize(121,121);
	button->FileRecovery->setToolTip("Hello");
	button->FileRecovery->setIcon(QIcon("/design/images/open drive.png"));
	button->FileRecovery->setIconSize(QSize(64,64));
	button->RawRecovery = new QPushButton();
	button->RawRecovery->setGeometry(140,20,121,121);
	button->RawRecovery->setFixedSize(121,121);
	button->RawRecovery->setIcon(QIcon("/design/images/save& repair -6 copy.png"));
	button->RawRecovery->setIconSize(QSize(64,64));
	clipboard = QApplication::clipboard();
    QHBoxLayout *controlsLayout = new QHBoxLayout;
    controlsLayout->addStretch(1);
    QHBoxLayout *lineLayout = new QHBoxLayout;
    lineLayout->addSpacing(1);
    QVBoxLayout *centralLayout = new QVBoxLayout;
    centralLayout->addLayout(controlsLayout);
	centralLayout->addWidget(button->FileRecovery, 1);
	centralLayout->addWidget(button->RawRecovery, 0);
	centralLayout->addSpacing(1);
    centralLayout->addLayout(lineLayout);
    centralWidget->setLayout(centralLayout);
    setCentralWidget(centralWidget);
	button->FileRecovery->installEventFilter(this);
}

#include "MainWindow.h"
#include "QButton.h"
#include <QtGui>


MainWindow::MainWindow()
{
    QWidget *centralWidget = new QWidget;
	button=new MyToolTipButton(0);
    centralWidget->setFixedSize(500,300);
   	button->FileRecovery = new QPushButton();
	button->FileRecovery->setGeometry(20,20,121,121);
	button->FileRecovery->setFixedSize(121,121);
	button->FileRecovery->setToolTip("Hello");
	button->FileRecovery->setIcon(QIcon("/design/images/open drive.png"));
	button->FileRecovery->setIconSize(QSize(64,64));
	button->RawRecovery = new QPushButton();
	button->RawRecovery->setGeometry(140,20,121,121);
	button->RawRecovery->setFixedSize(121,121);
	button->RawRecovery->setIcon(QIcon("/design/images/save& repair -6 copy.png"));
	button->RawRecovery->setIconSize(QSize(64,64));
	clipboard = QApplication::clipboard();
    QHBoxLayout *controlsLayout = new QHBoxLayout;
    controlsLayout->addStretch(1);
    QHBoxLayout *lineLayout = new QHBoxLayout;
    lineLayout->addSpacing(1);
    QVBoxLayout *centralLayout = new QVBoxLayout;
    centralLayout->addLayout(controlsLayout);
	centralLayout->addWidget(button->FileRecovery, 1);
	centralLayout->addWidget(button->RawRecovery, 0);
	centralLayout->addSpacing(1);
    centralLayout->addLayout(lineLayout);
    centralWidget->setLayout(centralLayout);
    setCentralWidget(centralWidget);
	button->FileRecovery->installEventFilter(this);
}

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Regards

**vermarajeev** · 3rd August 2007, 08:56

Ok, no time to review.
What you can do is take the below code, cut and paste into a new project and then try.
NOTE: you have to place the mouse cursor on the button stable for a while, then move slightly to see the eclipse.

//.h

Qt Code:

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class PushButton : public QPushButton
{
	Q_OBJECT
public:
	PushButton( const QString & text, QWidget * parent = 0 );
	~PushButton(){}
 
protected:
	bool event ( QEvent *  );	
	void mouseMoveEvent( QMouseEvent* );
 
private:
	CustomToolTip	*mCustomToolTip;
	QPoint _mousePoint;
};

class PushButton : public QPushButton
{
	Q_OBJECT
public:
	PushButton( const QString & text, QWidget * parent = 0 );
	~PushButton(){}

protected:
	bool event ( QEvent *  );	
	void mouseMoveEvent( QMouseEvent* );
	
private:
	CustomToolTip	*mCustomToolTip;
	QPoint _mousePoint;
};

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//.cpp

Qt Code:

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PushButton::PushButton( const QString & text, QWidget * parent )
: QPushButton(parent)
{
	setText(text);
	mCustomToolTip = 0;	
	setMouseTracking(true);	
}
 
bool PushButton::event( QEvent * e )
{
	QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
		if(!mCustomToolTip)
			mCustomToolTip = new CustomToolTip( this);
		mCustomToolTip->show();
		e->accept();
		return true;
	}
	else
	{
	    if(mCustomToolTip)
		    mCustomToolTip->hide();
	}
	return QWidget::event(e);
} 
 
void PushButton::mouseMoveEvent( QMouseEvent* e)
{
	_mousePoint = e->pos() ;
}

PushButton::PushButton( const QString & text, QWidget * parent )
: QPushButton(parent)
{
	setText(text);
	mCustomToolTip = 0;	
	setMouseTracking(true);	
}

bool PushButton::event( QEvent * e )
{
	QHelpEvent *he = static_cast<QHelpEvent*>(e);
	if(he && he->type() == QEvent::ToolTip)
	{
		if(!mCustomToolTip)
			mCustomToolTip = new CustomToolTip( this);
		mCustomToolTip->show();
		e->accept();
		return true;
	}
	else
	{
	    if(mCustomToolTip)
		    mCustomToolTip->hide();
	}
	return QWidget::event(e);
} 

void PushButton::mouseMoveEvent( QMouseEvent* e)
{
	_mousePoint = e->pos() ;
}

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//.h

Qt Code:

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class CustomToolTip : public QWidget
{
	Q_OBJECT
public:
	CustomToolTip(  QWidget * parent = 0 );
	~CustomToolTip(){}
protected:
	void paintEvent ( QPaintEvent *  );
private:
 
};

class CustomToolTip : public QWidget
{
	Q_OBJECT
public:
	CustomToolTip(  QWidget * parent = 0 );
	~CustomToolTip(){}
protected:
	void paintEvent ( QPaintEvent *  );
private:
	
};

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//.cpp

Qt Code:

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CustomToolTip::CustomToolTip( QWidget * parent )
:QWidget(parent)
{
	setWindowFlags(Qt::ToolTip);	
	resize( 50, 50 );	
}
 
void CustomToolTip::paintEvent ( QPaintEvent *  )
{
	QPainter p(this);	
    p.fillRect( rect(), Qt::transparent );
    p.setBrush(Qt::red);	
    p.drawEllipse(rect()); 
}

CustomToolTip::CustomToolTip( QWidget * parent )
:QWidget(parent)
{
	setWindowFlags(Qt::ToolTip);	
	resize( 50, 50 );	
}

void CustomToolTip::paintEvent ( QPaintEvent *  )
{
	QPainter p(this);	
    p.fillRect( rect(), Qt::transparent );
    p.setBrush(Qt::red);	
    p.drawEllipse(rect()); 
}

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//main.cpp

Qt Code:

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int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	QMainWindow w;
	PushButton* pBtn = new PushButton("OK", &w);	
	w.resize(400, 500);
	pBtn->setGeometry( w.width()/2, w.height()/2, 80, 30 );
	w.show();
	a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
	return a.exec();	
}

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	QMainWindow w;
	PushButton* pBtn = new PushButton("OK", &w);	
	w.resize(400, 500);
	pBtn->setGeometry( w.width()/2, w.height()/2, 80, 30 );
	w.show();
	a.connect(&a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()));
	return a.exec();	
}

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**merry** · 3rd August 2007, 11:42

Hi..

I am using 5 buttons on my main window, and for every button it is showing the same tooltip(ellipse) , Is there a way that for every button it shows different tooltip.

Thanx

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