Adding action to an event
-
Hello all,
I have re implemented Key press event to rotate image displayed using QGraphicsview. here is code.
void CustomView::keyPressEvent(QKeyEvent *event)
{
if (event->modifiers().testFlag(Qt::ControlModifier))
{
if (event->key() == Qt::Key_C)
{
r_angle = r_angle + angle;
rotate(angle);
}
}
if (event->modifiers().testFlag(Qt::ControlModifier))
{
if (event->key() == Qt::Key_A)
{
l_angle = l_angle - angle;
rotate(-(angle));
}
}
if (event->key() == Qt::Key_Space)
{
if (r_angle > 0)
{
rotate(-(r_angle));
r_angle = 0;
}
if (l_angle < 0)
{
rotate(-(l_angle));
l_angle = 0;
}
}
}How to link this to an any action. ? For example if I have action called rotate_image, how to call keypress event so that by clicking rotate_image the image will rotate. Is it possible to do that.
-
Hello all,
I have re implemented Key press event to rotate image displayed using QGraphicsview. here is code.
void CustomView::keyPressEvent(QKeyEvent *event)
{
if (event->modifiers().testFlag(Qt::ControlModifier))
{
if (event->key() == Qt::Key_C)
{
r_angle = r_angle + angle;
rotate(angle);
}
}
if (event->modifiers().testFlag(Qt::ControlModifier))
{
if (event->key() == Qt::Key_A)
{
l_angle = l_angle - angle;
rotate(-(angle));
}
}
if (event->key() == Qt::Key_Space)
{
if (r_angle > 0)
{
rotate(-(r_angle));
r_angle = 0;
}
if (l_angle < 0)
{
rotate(-(l_angle));
l_angle = 0;
}
}
}How to link this to an any action. ? For example if I have action called rotate_image, how to call keypress event so that by clicking rotate_image the image will rotate. Is it possible to do that.
@umadevi said in Adding action to an event:
how to call keypress event
Keypress events are called when you provide a keyboard input?
Key events are sent to the widget with keyboard input focus when keys are pressed or released
http://doc.qt.io/qt-4.8/qkeyevent.html#details
