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#pragma once
#include "drape_frontend/shape_view_params.hpp"
#include "drape_frontend/intrusive_vector.hpp"
#include "drape/utils/vertex_decl.hpp"
#include "drape/glsl_types.hpp"
#include "drape/pointers.hpp"
#include "drape/texture_manager.hpp"
#include "geometry/spline.hpp"
#include "geometry/screenbase.hpp"
#include "base/string_utils.hpp"
#include "base/buffer_vector.hpp"
#include "std/vector.hpp"
#include "std/shared_ptr.hpp"
namespace dp
{
class OverlayHandle;
}
namespace df
{
class TextLayout
{
public:
virtual ~TextLayout() {}
ref_ptr<dp::Texture> GetMaskTexture() const;
uint32_t GetGlyphCount() const;
float GetPixelLength() const;
float GetPixelHeight() const;
strings::UniString const & GetText() const;
protected:
void Init(strings::UniString const & text,
float fontSize,
ref_ptr<dp::TextureManager> textures);
protected:
typedef dp::TextureManager::GlyphRegion GlyphRegion;
dp::TextureManager::TGlyphsBuffer m_metrics;
strings::UniString m_text;
float m_textSizeRatio = 0.0f;
};
class StraightTextLayout : public TextLayout
{
using TBase = TextLayout;
public:
StraightTextLayout(strings::UniString const & text,
float fontSize,
ref_ptr<dp::TextureManager> textures,
dp::Anchor anchor);
void Cache(const glm::vec4 & pivot, glsl::vec2 const & pixelOffset,
dp::TextureManager::ColorRegion const & colorRegion,
dp::TextureManager::ColorRegion const & outlineRegion,
gpu::TTextOutlinedStaticVertexBuffer & staticBuffer,
gpu::TTextDynamicVertexBuffer & dynamicBuffer) const;
void Cache(const glm::vec4 & pivot, glsl::vec2 const & pixelOffset,
dp::TextureManager::ColorRegion const & color,
gpu::TTextStaticVertexBuffer & staticBuffer,
gpu::TTextDynamicVertexBuffer & dynamicBuffer) const;
m2::PointU const & GetPixelSize() const { return m_pixelSize; }
private:
buffer_vector<pair<size_t, glsl::vec2>, 2> m_offsets;
m2::PointU m_pixelSize;
};
class PathTextLayout : public TextLayout
{
using TBase = TextLayout;
public:
PathTextLayout(m2::PointD const & tileCenter, strings::UniString const & text,
float fontSize, ref_ptr<dp::TextureManager> textures);
void CacheStaticGeometry(dp::TextureManager::ColorRegion const & colorRegion,
dp::TextureManager::ColorRegion const & outlineRegion,
gpu::TTextOutlinedStaticVertexBuffer & staticBuffer) const;
void CacheStaticGeometry(dp::TextureManager::ColorRegion const & colorRegion,
gpu::TTextStaticVertexBuffer & staticBuffer) const;
bool CacheDynamicGeometry(m2::Spline::iterator const & iter,
float depth,
m2::PointD const & globalPivot,
gpu::TTextDynamicVertexBuffer & buffer) const;
static bool CalculatePerspectivePosition(float splineLength, float textPixelLength,
float & offset);
static void CalculatePositions(vector<float> & offsets, float splineLength,
float splineScaleToPixel, float textPixelLength);
private:
static float CalculateTextLength(float textPixelLength);
m2::PointD m_tileCenter;
};
class SharedTextLayout
{
public:
SharedTextLayout(PathTextLayout * layout);
bool IsNull() const;
void Reset(PathTextLayout * layout);
PathTextLayout * GetRaw();
PathTextLayout * operator->();
PathTextLayout const * operator->() const;
private:
shared_ptr<PathTextLayout> m_layout;
};
}
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