55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
#ifndef MBGL_MAP_VIEW
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#define MBGL_MAP_VIEW
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#include <chrono>
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namespace mbgl {
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class Map;
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enum MapChange : uint8_t {
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MapChangeRegionWillChange = 0,
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MapChangeRegionWillChangeAnimated = 1,
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MapChangeRegionDidChange = 2,
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MapChangeRegionDidChangeAnimated = 3,
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MapChangeWillStartLoadingMap = 4,
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MapChangeDidFinishLoadingMap = 5,
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MapChangeDidFailLoadingMap = 6,
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MapChangeWillStartRenderingMap = 7,
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MapChangeDidFinishRenderingMap = 8,
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MapChangeDidFinishRenderingMapFullyRendered = 9
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};
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class View {
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public:
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virtual void initialize(Map *map_) {
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map = map_;
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}
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// Called from the render (=GL) thread. Signals that the context should
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// swap the front and the back buffer.
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virtual void swap() = 0;
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// Called from the render thread. Makes the GL context active in the current
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// thread. This is typically just called once at the beginning of the
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// renderer setup since the render thread doesn't switch the contexts.
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virtual void activate() = 0;
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// Called from the render thread. Makes the GL context inactive in the current
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// thread. This is called once just before the rendering thread terminates.
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virtual void deactivate() = 0;
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virtual void notify() = 0;
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// Notifies a watcher of map x/y/scale/rotation changes.
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// Must only be called from the same thread that caused the change.
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// Must not be called from the render thread.
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virtual void notifyMapChange(MapChange change, std::chrono::steady_clock::duration delay = std::chrono::steady_clock::duration::zero()) = 0;
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protected:
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mbgl::Map *map = nullptr;
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};
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}
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#endif
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