56615487df
TouchGestureTracker follows two fingers and reports the pan, scale and rotation since the previous update around their midpoint. The Android window tracks every finger, sends a gesture while two or more touch the screen and releases the pointer the first finger was holding, so one finger keeps acting as a pointer. Gestures travel through the input coalescer, which merges consecutive updates, to a new Gesture UI event delivered to the widget under the fingers where the gesture began. Gesture events reach the UI before pointer events from the same frame.
27 lines
749 B
C++
27 lines
749 B
C++
#pragma once
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#include "InputCodes.hpp"
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#include "PointerSample.hpp"
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#include "TouchGesture.hpp"
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#include "Vec.hpp"
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#include <string>
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namespace tp {
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class WindowInputObserver {
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public:
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virtual ~WindowInputObserver() = default;
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virtual void onPointerSample(const PointerSample& sample) {}
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virtual void onPointerMoved(Vec2F contentPosition) {}
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virtual void onPointerLeft() {}
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virtual void onPointerButton(InputID button, bool pressed) {}
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virtual void onScrolled(Vec2F delta) {}
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virtual void onKey(InputID key, bool pressed) {}
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virtual void onKeyRepeat(InputID key) {}
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virtual void onText(const std::string& utf8) {}
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virtual void onKeyboardFocus(bool focused) {}
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virtual void onGesture(const TouchGesture& gesture) {}
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};
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}
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