adfac6f061
ConstrainMode gives flexibility to our engine to choose between constraining both vertically and horizontally, or just vertically (default behavior). Constrain in both axis means we can no longer pan the map beyond the map boundaries. This fixes an issue where e.g. annotations disappear upon crossing the map boundaries.
94 lines
3.1 KiB
C++
94 lines
3.1 KiB
C++
#ifndef MBGL_MAP_TRANSFORM
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#define MBGL_MAP_TRANSFORM
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#include <mbgl/map/camera.hpp>
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#include <mbgl/map/mode.hpp>
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#include <mbgl/map/transform_state.hpp>
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#include <mbgl/map/update.hpp>
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#include <mbgl/util/chrono.hpp>
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#include <mbgl/util/geo.hpp>
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#include <mbgl/util/noncopyable.hpp>
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#include <cstdint>
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#include <cmath>
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#include <functional>
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namespace mbgl {
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class View;
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class Transform : private util::noncopyable {
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public:
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Transform(View&, ConstrainMode);
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// Map view
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bool resize(std::array<uint16_t, 2> size);
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void jumpTo(const CameraOptions&);
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void easeTo(const CameraOptions&);
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// Position
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void moveBy(const PrecisionPoint&, const Duration& = Duration::zero());
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void setLatLng(const LatLng&, const Duration& = Duration::zero());
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void setLatLng(const LatLng&, const PrecisionPoint&, const Duration& = Duration::zero());
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void setLatLngZoom(const LatLng&, double zoom, const Duration& = Duration::zero());
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LatLng getLatLng() const { return state.getLatLng(); }
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// Zoom
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void scaleBy(double ds, const PrecisionPoint& center = { 0, 0 }, const Duration& = Duration::zero());
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void setScale(double scale, const PrecisionPoint& center = { 0, 0 }, const Duration& = Duration::zero());
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void setZoom(double zoom, const Duration& = Duration::zero());
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double getZoom() const;
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double getScale() const;
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// Angle
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void rotateBy(const PrecisionPoint& first, const PrecisionPoint& second, const Duration& = Duration::zero());
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void setAngle(double angle, const Duration& = Duration::zero());
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void setAngle(double angle, const PrecisionPoint& center);
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double getAngle() const;
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// Pitch
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void setPitch(double pitch, const Duration& = Duration::zero());
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double getPitch() const;
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// Transitions
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bool inTransition() const;
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Update updateTransitions(const TimePoint& now);
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void cancelTransitions();
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// Gesture
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void setGestureInProgress(bool);
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bool isGestureInProgress() const { return state.isGestureInProgress(); }
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// Transform state
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TransformState getState() const { return state; }
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bool isRotating() const { return state.isRotating(); }
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bool isScaling() const { return state.isScaling(); }
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bool isPanning() const { return state.isPanning(); }
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private:
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void _moveBy(const PrecisionPoint&, const Duration& = Duration::zero());
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void _setScale(double scale, const PrecisionPoint& center, const Duration& = Duration::zero());
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void _setScaleXY(double new_scale, double xn, double yn, const Duration& = Duration::zero());
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void _easeTo(const CameraOptions&, double new_scale, double new_angle, double xn, double yn);
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void _setAngle(double angle, const Duration& = Duration::zero());
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View &view;
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TransformState state;
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void startTransition(std::function<double(double)> easing,
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std::function<Update(double)> frame,
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std::function<void()> finish,
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const Duration& duration);
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TimePoint transitionStart;
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Duration transitionDuration;
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std::function<Update(const TimePoint)> transitionFrameFn;
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std::function<void()> transitionFinishFn;
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};
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}
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#endif
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