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Fr4nz D13trich 2025-11-22 13:58:55 +01:00
parent 4af19165ec
commit 68073add76
12458 changed files with 12350765 additions and 2 deletions
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98
libs/drape_frontend/gui/choose_position_mark.cpp Normal file
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#include "drape_frontend/gui/choose_position_mark.hpp"
#include "drape_frontend/gui/drape_gui.hpp"
#include "drape_frontend/batcher_bucket.hpp"
#include "shaders/programs.hpp"
#include "drape/utils/vertex_decl.hpp"
#include <functional>
#include <utility>
using namespace std::placeholders;
namespace gui
{
namespace
{
struct ChoosePositionMarkVertex
{
ChoosePositionMarkVertex(glsl::vec2 const & position, glsl::vec2 const & texCoord)
: m_position(position)
, m_texCoord(texCoord)
{}
glsl::vec2 m_position;
glsl::vec2 m_texCoord;
};
class ChoosePositionMarkHandle : public Handle
{
using TBase = Handle;
public:
ChoosePositionMarkHandle(uint32_t id, m2::PointF const & pivot) : Handle(id, dp::Center, pivot)
{
SetIsVisible(true);
}
bool Update(ScreenBase const & screen) override
{
SetPivot(glsl::ToVec2(m2::PointF(screen.PixelRectIn3d().Center())));
return TBase::Update(screen);
}
};
} // namespace
drape_ptr<ShapeRenderer> ChoosePositionMark::Draw(ref_ptr<dp::GraphicsContext> context,
ref_ptr<dp::TextureManager> tex) const
{
dp::TextureManager::SymbolRegion region;
tex->GetSymbolRegion("cross_geoposition", region);
glsl::vec2 const halfSize = glsl::ToVec2(region.GetPixelSize() * 0.5f);
m2::RectF const texRect = region.GetTexRect();
ASSERT_EQUAL(m_position.m_anchor, dp::Center, ());
ChoosePositionMarkVertex vertexes[] = {
ChoosePositionMarkVertex(glsl::vec2(-halfSize.x, halfSize.y), glsl::ToVec2(texRect.LeftTop())),
ChoosePositionMarkVertex(glsl::vec2(-halfSize.x, -halfSize.y), glsl::ToVec2(texRect.LeftBottom())),
ChoosePositionMarkVertex(glsl::vec2(halfSize.x, halfSize.y), glsl::ToVec2(texRect.RightTop())),
ChoosePositionMarkVertex(glsl::vec2(halfSize.x, -halfSize.y), glsl::ToVec2(texRect.RightBottom()))};
auto state = df::CreateRenderState(gpu::Program::TexturingGui, df::DepthLayer::GuiLayer);
state.SetColorTexture(region.GetTexture());
state.SetDepthTestEnabled(false);
state.SetTextureIndex(region.GetTextureIndex());
dp::AttributeProvider provider(1 /*streamCount*/, 4 /*vertexCount*/);
dp::BindingInfo info(2 /*count*/);
dp::BindingDecl & posDecl = info.GetBindingDecl(0);
posDecl.m_attributeName = "a_position";
posDecl.m_componentCount = 2;
posDecl.m_componentType = gl_const::GLFloatType;
posDecl.m_offset = 0;
posDecl.m_stride = sizeof(ChoosePositionMarkVertex);
dp::BindingDecl & texDecl = info.GetBindingDecl(1);
texDecl.m_attributeName = "a_colorTexCoords";
texDecl.m_componentCount = 2;
texDecl.m_componentType = gl_const::GLFloatType;
texDecl.m_offset = sizeof(glsl::vec2);
texDecl.m_stride = posDecl.m_stride;
provider.InitStream(0, info, make_ref(&vertexes));
drape_ptr<dp::OverlayHandle> handle =
make_unique_dp<ChoosePositionMarkHandle>(GuiHandleChoosePositionMark, m_position.m_pixelPivot);
drape_ptr<ShapeRenderer> renderer = make_unique_dp<ShapeRenderer>();
dp::Batcher batcher(dp::Batcher::IndexPerQuad, dp::Batcher::VertexPerQuad);
batcher.SetBatcherHash(static_cast<uint64_t>(df::BatcherBucket::Default));
dp::SessionGuard guard(context, batcher, std::bind(&ShapeRenderer::AddShape, renderer.get(), _1, _2));
batcher.InsertTriangleStrip(context, state, make_ref(&provider), std::move(handle));
return renderer;
}
} // namespace gui