In flex, I am using the following:
mx:TextInput mouseOver="tester(event)"
It works fine. My pointer goes over the textInput and it calls the function. But when I click inside the textInput to enter some text( focus is on the textInput) and then move the mouse (not taking mouse pointer outside of the boundary of textinput), the mouseover event is not trigerred.
If I use click event, then even if I am entering text ( or the focus is on the textinput) and then click, it will call the function.
How can I call the tester function on mouseover when the focus is on textInput?
The mouseOver event fires when the mouse is moved over the control.
Maybe you want to try the mouseMove event which will fire every time the mouse moves?
Keep in mind that mouseEvents and focusEvents are not inherently related. I would expect the mouseOver event to fire when the mouse rolls over your textInput regardless of whether or not that textInput has the focus.
Related
Can anyone explain me what the difference between focus, focusleave and focusenter on button method with extjs, I'm lost because it seems to be the same when I add event listener. Thanks
kind regards
difference between focus, focusleave and focusenter on button method
with extjs
Method? I guess you mean the events right? Cos:
The focus method will focus your button when you call it.
As you can see on the picture the middle button has focus, you can change the focus on the webpage usually by using TAB key. ExtJS supports full control over your app using keyboard.
The focus, focusenter, focusleave events. If you are not sure what to use - just use "focus"
The focus event should be clear - it's simply fired when the button has focus.
The focusenter is fired when the component get's focus but as the docs states it's also fired in the whole component hirearchy. That means that if the button is in panel which is in view and you focus the button - the focusenter will be fired on the view, panel, button.
main -> panel -> button
Events
The focusleave is the same as focus enter. Fired when focus is lost on the component - again fired in the whole hirearchy. So if the focus went completly away form the page you would see focus leave on the button -> panel -> view
I want to show the corresponding page when mouse cursor hover on the tab of a QTabWidget.
For example, when the mouse cursor hover on tab ‘page2’ here , I hope the QTabWidget shows the corresponding page automatically instead of clicking. How to implement this feature?
You may try adding an event filter on the QTabWidget object's QTabBar in order to trap the mouse move event. In the filter handler, use QTabBar::tabAt( QPoint ) to find which tab is below the cursor. Set up a timer when the cursor first enters a given tab, reset time when cursor leaves it. When the timer fires, switch active tabs.
You may try using setTabToolTop function.
ui->tabWidgetHz->setTabToolTip(0,"tooltip for tab1.");
ui->tabWidgetHz->setTabToolTip(1,"tooltip for tab2.");
ui->tabWidgetHz->setTabToolTip(2,"tooltip for tab3");
I have a simple parent widget that reimplements mousePressEvent/mouseReleaseEvent. The parent's child widgets use enterEvent/leaveEvent. When I hover the mouse over the child widgets, leaveEvent/enterEvent executes, but when I click and hold the mouse, mousePressEvent executes, but enterEvent/leaveEvent goes silent (in other words, no click and drag). Any ideas about what could be causing this?
If you press and hold down the mouse button on a widget then that widget grabs mouse events until you release the button. This is not a special feature of Qt, you can find similar behaviour in every other GUI APIs I know.
Take a look at the relevant part of the Qt documentation:
QWidget / Events:
mousePressEvent() is called when a mouse button is pressed while the
mouse cursor is inside the widget, or when the widget has grabbed the
mouse using grabMouse(). Pressing the mouse without releasing it is
effectively the same as calling grabMouse().
void QWidget::grabMouse ():
Grabs the mouse input. This widget receives all mouse events until
releaseMouse() is called; other widgets get no mouse events at all.
I have tooltips in flex but when a component is clicked the tooltip disappears and the user has to move mouse out of the control and then back into the control to display the tooltip.
Is there a way to prevent the tooltip from getting destroyed on mouse click.
I tried calling
e.stopImmediatePropagation();
e.preventDefault(); on mouse click event of button. also tried handling and preventing tooltipEnd and tooltipHide events but they are not fire when the button is clicked.
Thanks.
I have fixed the issue by adding a event handler to the mouseDown event and then calling preventDefault and stopImmediatePropagation there this prevents the tooltip from vanishing and the button is still clickable.
I have placed a few buttons in a Qgraphicsscene, but I don’t know how to navigate to the button from a keyboard.
How would I set the focus to a button from the keyboard?
I assume that you used QGraphicsScene::addWidget() to add the button to the scene? It gives you a proxy object back, QGraphicsProxyWidget *, which inherits QGraphicsItem::setFocus(). But remember that it needs to have set the ItemIsFocusable flag and needs to be visible and active as well.
Additionally (from the setFocus() documentation):
As a result of calling this function, this item will receive a focus in event with focusReason. If another item already has focus, that item will first receive a focus out event indicating that it has lost input focus.