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Qt Pods

QtWaitingSpinner

QtWaitingSpinner is a highly configurable, custom Qt widget for showing "waiting" or "loading" spinner icons in Qt applications, e.g. the spinners below are all QtWaitingSpinner widgets differing only in their configuration:

waiting spinner

###Configuration

The following properties can all be controlled directly through their corresponding setters:

  • Colour of the widget
  • "Roundness" of the lines
  • Speed (rotations per second)
  • Number of lines to be drawn
  • Line length
  • Line width
  • Radius of the spinner's "dead space" or inner circle
  • The percentage fade of the "trail"
  • The minimum opacity of the "trail"

###Usage

Despite being highly configurable, QtWaitingSpinner is extremely easy to use and, to make things even easier, the "QtWaitingSpinnerTest" application can assist you in determining the exact shape, size and colour you'd like your spinner to have.

For example, the embedded spinner in the QtWaitingSpinnerTest screenshot below can be created as follows:

  QtWaitingSpinner* spinner = new QtWaitingSpinner(this);

  spinner->setRoundness(70.0);
  spinner->setMinimumTrailOpacity(15.0);
  spinner->setTrailFadePercentage(70.0);
  spinner->setNumberOfLines(12);
  spinner->setLineLength(10);
  spinner->setLineWidth(5);
  spinner->setInnerRadius(10);
  spinner->setRevolutionsPerSecond(1);
  spinner->setColor(QColor(81, 4, 71));

  spinner->start(); // gets the show on the road!

test dialog

As an alternative example, the code below will create a spinner that (1) blocks all user input to the main application for as long as the spinner is active, (2) automatically centres itself on its parent widget every time "start" is called and (3) makes use of the default shape, size and colour settings.

	QtWaitingSpinner* spinner = new QtWaitingSpinner(this, Qt::ApplicationModal, true);
	spinner->start(); // starts spinning

Please use use this link for feedback, requests or issues.

Enjoy!

###qt-pods

QtWaitingSpinner is available as a pod within qt-pods. See here for reference: https://github.com/cybercatalyst/qt-pods

###Thanks

QtWaitingSpinner was inspired by the spin.js project.

Forks

There is also QtWaitingSpinner for Python! Thanks to z3ntu for porting it.