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#include "drape_frontend/circle_shape.hpp"
#include "drape/utils/vertex_decl.hpp"
#include "drape/batcher.hpp"
#include "drape/attribute_provider.hpp"
#include "drape/glstate.hpp"
#include "drape/shader_def.hpp"
#include "drape/texture_manager.hpp"
#include "drape/overlay_handle.hpp"
namespace df
{
CircleShape::CircleShape(m2::PointF const & mercatorPt, CircleViewParams const & params, bool needOverlay)
: m_pt(mercatorPt)
, m_params(params)
, m_needOverlay(needOverlay)
{}
void CircleShape::Draw(ref_ptr<dp::Batcher> batcher, ref_ptr<dp::TextureManager> textures) const
{
int const TriangleCount = 20;
double const etalonSector = (2.0 * math::pi) / static_cast<double>(TriangleCount);
dp::TextureManager::ColorRegion region;
textures->GetColorRegion(m_params.m_color, region);
glsl::vec2 const colorPoint(glsl::ToVec2(region.GetTexRect().Center()));
glsl::vec2 const pt = glsl::ToVec2(ConvertToLocal(m_pt, m_params.m_tileCenter, kShapeCoordScalar));
buffer_vector<gpu::SolidTexturingVertex, 22> vertexes;
vertexes.push_back(gpu::SolidTexturingVertex
{
glsl::vec4(pt, m_params.m_depth, 0.0f),
glsl::vec2(0.0f, 0.0f),
colorPoint
});
m2::PointD startNormal(0.0f, m_params.m_radius);
for (size_t i = 0; i < TriangleCount + 1; ++i)
{
m2::PointD rotatedNormal = m2::Rotate(startNormal, (i) * etalonSector);
vertexes.push_back(gpu::SolidTexturingVertex
{
glsl::vec4(pt, m_params.m_depth, 0.0f),
glsl::ToVec2(rotatedNormal),
colorPoint
});
}
dp::GLState state(gpu::TEXTURING_PROGRAM, dp::GLState::OverlayLayer);
state.SetColorTexture(region.GetTexture());
dp::AttributeProvider provider(1, TriangleCount + 2);
provider.InitStream(0, gpu::SolidTexturingVertex::GetBindingInfo(), make_ref(vertexes.data()));
batcher->InsertTriangleFan(state, make_ref(&provider), CreateOverlay());
}
drape_ptr<dp::OverlayHandle> CircleShape::CreateOverlay() const
{
if (!m_needOverlay)
return nullptr;
double const handleSize = 2 * m_params.m_radius;
return make_unique_dp<dp::SquareHandle>(m_params.m_id, dp::Center, m_pt,
m2::PointD(handleSize, handleSize),
GetOverlayPriority(), false /* isBound */, "");
}
uint64_t CircleShape::GetOverlayPriority() const
{
// Set up maximum priority for shapes which created by user in the editor.
if (m_params.m_createdByEditor)
return dp::kPriorityMaskAll;
// Set up minimal priority for shapes which belong to areas.
if (m_params.m_hasArea)
return 0;
return dp::CalculateOverlayPriority(m_params.m_minVisibleScale, m_params.m_rank, m_params.m_depth);
}
} // namespace df
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