65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
#ifndef MBGL_MAP_VIEW
|
|
#define MBGL_MAP_VIEW
|
|
|
|
#include <mbgl/util/chrono.hpp>
|
|
#include <functional>
|
|
|
|
#include <memory>
|
|
|
|
namespace mbgl {
|
|
|
|
class Map;
|
|
class StillImage;
|
|
|
|
enum MapChange : uint8_t {
|
|
MapChangeRegionWillChange = 0,
|
|
MapChangeRegionWillChangeAnimated = 1,
|
|
MapChangeRegionIsChanging = 2,
|
|
MapChangeRegionDidChange = 3,
|
|
MapChangeRegionDidChangeAnimated = 4,
|
|
MapChangeWillStartLoadingMap = 5,
|
|
MapChangeDidFinishLoadingMap = 6,
|
|
MapChangeDidFailLoadingMap = 7,
|
|
MapChangeWillStartRenderingMap = 8,
|
|
MapChangeDidFinishRenderingMap = 9,
|
|
MapChangeDidFinishRenderingMapFullyRendered = 10
|
|
};
|
|
|
|
class View {
|
|
public:
|
|
virtual void initialize(Map *map_);
|
|
|
|
// Called from the render thread. Makes the GL context active in the current
|
|
// thread. This is typically just called once at the beginning of the
|
|
// renderer setup since the render thread doesn't switch the contexts.
|
|
virtual void activate() = 0;
|
|
|
|
// Called from the render thread. Makes the GL context inactive in the current
|
|
// thread. This is called once just before the rendering thread terminates.
|
|
virtual void deactivate() = 0;
|
|
|
|
virtual void notify() = 0;
|
|
|
|
// Called from the render thread. The implementation must trigger a rerender.
|
|
// (i.e. either the passed render() function for rendering immediately on the map thread,
|
|
// or map->renderSync() from the main thread must be called as a result of this)
|
|
virtual void invalidate(std::function<void()> render) = 0;
|
|
|
|
// Reads the pixel data from the current framebuffer. If your View implementation
|
|
// doesn't support reading from the framebuffer, return a null pointer.
|
|
virtual std::unique_ptr<StillImage> readStillImage();
|
|
|
|
// Notifies a watcher of map x/y/scale/rotation changes.
|
|
// Must only be called from the same thread that caused the change.
|
|
// Must not be called from the render thread.
|
|
virtual void notifyMapChange(
|
|
MapChange change,
|
|
Duration delay = Duration::zero());
|
|
|
|
protected:
|
|
mbgl::Map *map = nullptr;
|
|
};
|
|
}
|
|
|
|
#endif
|