How to call a slot of button class when a window is closed ?
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I have a window class and a child button class. I am making custom button.I am using mouse release and press event in button class.
I am changing button image at each mouse_hover and press or release event.I want when i press a button a new window should open and as long as the window is opened the button should be in pressed state
and when i close that window, button should change to released state. I can't use checkable state property because my button is custom type. So how i will know the window is closed or not and how to change the button state at the same time.
My code is pasted below please tell me the change i have to do in thatmain.cpp
@#include <QtGui/QApplication>
#include "button.h"int main(int argc, char *argv[])
{
QApplication a(argc, argv);
QMainWindow window;
QMainWindow window1;float button_width = 47; float button_height = 47; int button_states = 1; //window.setStyleSheet("background-image: url(:/Sunset.jpg);"); QPixmap pixmap(":/endcall.png"); Button *button1 = new Button(button_width, button_height, button_states, pixmap, &window); button1->setGeometry(60, 70, 80, 90);QObject::connect(button1,SIGNAL(clicked()),window1,SLOT(open()));
window.show(); return a.exec();}
button.cpp
#include "mainwindow.h"
Button::Button(QWidget *parent):
QPushButton(parent),
m_hovered(false),
m_pressed(false)
{}Button::Button (float button_width1,
float button_height1,
int button_states,
QPixmap &pixmap1,
QWidget *parent):
QPushButton( parent),
m_hovered(false),
m_pressed(false)
{
pixmap = pixmap1;
button_width = button_width1;
button_height = button_height1;
num_of_states = button_states;
num_of_images = pixmap.width()/button_width;
press_count = 0;
count = 0;target = QRectF(0.0, 0.0, button_width, button_height); source = QRectF(0.0, 0.0, button_width, button_height);}
Button::~Button ()
{}void Button::enterEvent (QEvent *e)
{
m_hovered = true;
this->repaint();
QPushButton::enterEvent(e);
}void Button::leaveEvent (QEvent *e)
{
m_hovered = false;
this->repaint();
QPushButton::leaveEvent(e);
}void Button::mousePressEvent (QMouseEvent *e)
{
...............................................
this->repaint();
QPushButton::mousePressEvent(e);
}void Button::mouseReleaseEvent (QMouseEvent *e)
{..........................................
this->repaint(); QPushButton::mouseReleaseEvent(e);}
void Button::paintEvent (QPaintEvent *e)
{
Q_UNUSED(e);.............
.......................
this->setMask(region);
painter.drawPixmap(target, pixmap, source);switch (num_of_states) { case 1: if (this->isEnabled()) { if(num_of_images == 4) { painter.drawPixmap(target, pixmap, source); } else { if(!m_pressed) { source = QRectF(0.0, 0.0, button_width, button_height); } painter.drawPixmap(target, pixmap, source); if (m_hovered) { source = QRectF(button_width, 0.0 ,button_width, button_height); painter.drawPixmap(target, pixmap, source); } } } else { painter.drawPixmap(target, pixmap, source); } break; case 2: if (this->isEnabled()) { if (press_count % 2 != 0 || press_count == 0) { if(!m_pressed) { source = QRectF(0, 0, button_width, button_height); } } else { if(m_pressed) { source = QRectF(0, 0 , button_width, button_height); } } painter.drawPixmap(target,pixmap,source); if (press_count % 2 != 0 || press_count == 0) { if (m_hovered && m_pressed == false) { source = QRectF(button_width , 0, button_width, button_height); } } else { if (m_hovered && m_pressed == true){ source = QRectF(button_width , 0, button_width, button_height); } } painter.drawPixmap(target, pixmap, source); break; } }}
button.h
#ifndef MAINWINDOW_H
#define MAINWINDOW_H#include <QtGui>
class Button : public QPushButton
{Q_OBJECTpublic:
Button(QWidget *parent = 0); Button(float button_width1, float button_height1, int button_states, QPixmap &, QWidget *parent = 0); void check_condition(int,QPainter &); ~Button(); void enterEvent(QEvent *); void leaveEvent(QEvent *); void mousePressEvent(QMouseEvent *e); void mouseReleaseEvent(QMouseEvent *e); void paintEvent(QPaintEvent *);private:
bool m_hovered; bool m_pressed; int num_of_states; int press_count; int count; int num_of_images; float button_width; float button_height; QRectF target; QRectF source; QPixmap pixmap;};
#endif // MAINWINDOW_H
@