93 lines
3 KiB
C++
93 lines
3 KiB
C++
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#include "copyright_label.hpp"
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#include "drape_gui.hpp"
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#include "gui_text.hpp"
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#include "drape_frontend/animation/opacity_animation.hpp"
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#include "drape_frontend/batcher_bucket.hpp"
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#include <functional>
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#include <utility>
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namespace gui
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{
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namespace
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{
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constexpr double kCopyrightVisibleTime = 10.0f;
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constexpr double kCopyrightHideTime = 0.25f;
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class CopyrightHandle : public StaticLabelHandle
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{
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using TBase = StaticLabelHandle;
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public:
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CopyrightHandle(uint32_t id, ref_ptr<dp::TextureManager> textureManager, dp::Anchor anchor, m2::PointF const & pivot,
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dp::TGlyphs && glyphs)
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: TBase(id, textureManager, anchor, pivot, std::move(glyphs))
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{
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SetIsVisible(true);
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}
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bool Update(ScreenBase const & screen) override
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{
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if (!IsVisible())
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return false;
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if (!TBase::Update(screen))
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return false;
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if (!DrapeGui::Instance().IsCopyrightActive())
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{
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SetIsVisible(false);
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return false;
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}
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if (m_animation == nullptr)
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{
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m_animation = make_unique_dp<df::OpacityAnimation>(kCopyrightHideTime, kCopyrightVisibleTime, 1.0f, 0.0f);
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}
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else if (m_animation->IsFinished())
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{
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DrapeGui::Instance().DeactivateCopyright();
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SetIsVisible(false);
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}
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m_params.m_opacity = static_cast<float>(m_animation->GetOpacity());
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return true;
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}
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private:
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drape_ptr<df::OpacityAnimation> m_animation;
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};
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} // namespace
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CopyrightLabel::CopyrightLabel(Position const & position) : TBase(position) {}
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drape_ptr<ShapeRenderer> CopyrightLabel::Draw(ref_ptr<dp::GraphicsContext> context,
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ref_ptr<dp::TextureManager> tex) const
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{
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StaticLabel::LabelResult result;
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auto glyphs = StaticLabel::CacheStaticText("Map data © OpenStreetMap", "", m_position.m_anchor,
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DrapeGui::GetGuiTextFont(), tex, result);
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dp::AttributeProvider provider(1 /*stream count*/, static_cast<uint32_t>(result.m_buffer.size()));
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provider.InitStream(0 /*stream index*/, StaticLabel::Vertex::GetBindingInfo(), make_ref(result.m_buffer.data()));
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auto const vertexCount = static_cast<uint32_t>(result.m_buffer.size());
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ASSERT(vertexCount % dp::Batcher::VertexPerQuad == 0, ());
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auto const indexCount = dp::Batcher::IndexPerQuad * vertexCount / dp::Batcher::VertexPerQuad;
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drape_ptr<dp::OverlayHandle> handle = make_unique_dp<CopyrightHandle>(GuiHandleCopyright, tex, m_position.m_anchor,
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m_position.m_pixelPivot, std::move(glyphs));
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drape_ptr<ShapeRenderer> renderer = make_unique_dp<ShapeRenderer>();
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dp::Batcher batcher(indexCount, vertexCount);
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batcher.SetBatcherHash(static_cast<uint64_t>(df::BatcherBucket::Default));
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using namespace std::placeholders;
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dp::SessionGuard guard(context, batcher, std::bind(&ShapeRenderer::AddShape, renderer.get(), _1, _2));
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batcher.InsertListOfStrip(context, result.m_state, make_ref(&provider), std::move(handle),
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dp::Batcher::VertexPerQuad);
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return renderer;
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}
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} // namespace gui
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