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@ -12,13 +12,25 @@ namespace Pinetime {
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explicit Screen(DisplayApp* app) : app{app} {}
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virtual ~Screen() = default;
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// Return false if the app can be closed, true if it must continue to run
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/**
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* Most of the time, apps only react to events (touch events, for example).
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* In this case you don't need to do anything in this method.
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*
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* For example, InfiniPaint does nothing in Refresh().
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* But, if you want to update your display periodically, draw an animation...
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* you cannot do it in a touch event handler because these handlers are not
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* called if the user does not touch the screen.
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*
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* That's why Refresh() is there: update the display periodically.
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*
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* @return false if the app can be closed, true if it must continue to run
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**/
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virtual bool Refresh() = 0;
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// Return false if the button hasn't been handled by the app, true if it has been handled
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/** @return false if the button hasn't been handled by the app, true if it has been handled */
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virtual bool OnButtonPushed() { return false; }
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// Return false if the event hasn't been handled by the app, true if it has been handled
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/** @return false if the event hasn't been handled by the app, true if it has been handled */
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virtual bool OnTouchEvent(TouchEvents event) { return false; }
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virtual bool OnTouchEvent(uint16_t x, uint16_t y) { return false; }
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