rename llmr => mbgl

1 files changed, 69 insertions, 0 deletions

diff --git a/include/mbgl/map/transform_state.hpp b/include/mbgl/map/transform_state.hpp
new file mode 100644
index 0000000000..85dd2eb87d
--- /dev/null
+++ b/include/mbgl/map/transform_state.hpp
@@ -0,0 +1,69 @@
+#ifndef MBGL_MAP_TRANSFORM_STATE
+#define MBGL_MAP_TRANSFORM_STATE
+
+#include <mbgl/util/mat4.hpp>
+#include <mbgl/map/tile.hpp>
+
+#include <cstdint>
+
+namespace mbgl {
+
+class Transform;
+
+class TransformState {
+    friend class Transform;
+
+public:
+    // Matrix
+    void matrixFor(mat4& matrix, const Tile::ID& id) const;
+    box cornersToBox(uint32_t z) const;
+
+    // Dimensions
+    bool hasSize() const;
+    uint16_t getWidth() const;
+    uint16_t getHeight() const;
+    uint16_t getFramebufferWidth() const;
+    uint16_t getFramebufferHeight() const;
+    const std::array<uint16_t, 2> getFramebufferDimensions() const;
+    float getPixelRatio() const;
+
+    // Zoom
+    float getNormalizedZoom() const;
+    int32_t getIntegerZoom() const;
+    double getZoom() const;
+    double getScale() const;
+
+    // Rotation
+    float getAngle() const;
+
+    // Changing
+    bool isChanging() const;
+
+private:
+    double pixel_x() const;
+    double pixel_y() const;
+
+private:
+    // logical dimensions
+    uint16_t width = 0, height = 0;
+
+    // physical (framebuffer) dimensions
+    std::array<uint16_t, 2> framebuffer = {{ 0, 0 }};
+
+    // map scale factor
+    float pixelRatio = 0;
+
+    // animation state
+    bool rotating = false;
+    bool scaling = false;
+    bool panning = false;
+
+    // map position
+    double x = 0, y = 0;
+    double angle = 0;
+    double scale = std::numeric_limits<double>::infinity();
+};
+
+}
+
+#endif