touchgfx::TouchArea - syntax, references, description

@class TouchArea TouchArea.hpp touchgfx/widgets/TouchArea.hpp Invisible widget used to capture touch events. Invisible widget used to capture touch events. The TouchArea consumes drag events without the widget it self moving. @see AbstractButton

Syntax

from TouchArea.hpp:34

class TouchArea : public AbstractButton { public: TouchArea() : AbstractButton(), pressedAction(0) { } virtual void draw(const Rect& invalidatedArea) const { } virtual void handleDragEvent(const DragEvent& evt) { } virtual void handleClickEvent(const ClickEvent& event); virtual Rect getSolidRect() const { return Rect(0, 0, 0, 0); } void setPressedAction(GenericCallback< const AbstractButton& >& callback) { pressedAction = &callback; } virtual uint16_t getType() const { return (uint16_t)TYPE_TOUCHAREA; } protected: GenericCallback< const AbstractButton& >* pressedAction; };

Methods

draw() const

@fn virtual void TouchArea::draw(const Rect& invalidatedArea) const A TouchArea will not draw anything. A TouchArea will not draw anything. Read more...

handleDragEvent()

@fn virtual void TouchArea::handleDragEvent(const DragEvent& evt) A TouchArea will not move when dragged. A TouchArea will not move when dragged. Read more...

handleClickEvent()

@fn virtual void TouchArea::handleClickEvent(const ClickEvent& event); A TouchArea will refine the handling of click events. A TouchArea will refine the handling of click events in order to enable the callback to the pressedAction. Read more...

getSolidRect() const

@fn virtual Rect TouchArea::getSolidRect() const A TouchArea has no solid rectangle. A TouchArea has no solid rectangle. Read more...

setPressedAction()

@fn void TouchArea::setPressedAction(GenericCallback& callback) Associates an action to be performed when the TouchArea is pressed. Associates an action to be performed when the TouchArea is pressed. Read more...

getType() const

@fn virtual uint16_t TouchArea::getType() const For GUI testing only. For GUI testing only. Returns type of this drawable. Read more...

touchgfx::TouchArea class

Syntax

Fields

pressedAction