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#include "drape_frontend/text_handle.hpp"
#include "drape/texture_manager.hpp"
#include "base/logging.hpp"
namespace df
{
TextHandle::TextHandle(FeatureID const & id, strings::UniString const & text,
dp::Anchor anchor, uint64_t priority,
ref_ptr<dp::TextureManager> textureManager,
bool isBillboard)
: OverlayHandle(id, anchor, priority, isBillboard)
, m_forceUpdateNormals(false)
, m_isLastVisible(false)
, m_text(text)
, m_textureManager(textureManager)
, m_glyphsReady(false)
{}
TextHandle::TextHandle(FeatureID const & id, strings::UniString const & text,
dp::Anchor anchor, uint64_t priority,
ref_ptr<dp::TextureManager> textureManager,
gpu::TTextDynamicVertexBuffer && normals,
bool isBillboard)
: OverlayHandle(id, anchor, priority, isBillboard)
, m_buffer(move(normals))
, m_forceUpdateNormals(false)
, m_isLastVisible(false)
, m_text(text)
, m_textureManager(textureManager)
, m_glyphsReady(false)
{}
void TextHandle::GetAttributeMutation(ref_ptr<dp::AttributeBufferMutator> mutator) const
{
bool const isVisible = IsVisible();
if (!m_forceUpdateNormals && m_isLastVisible == isVisible)
return;
TOffsetNode const & node = GetOffsetNode(gpu::TextDynamicVertex::GetDynamicStreamID());
ASSERT(node.first.GetElementSize() == sizeof(gpu::TextDynamicVertex), ());
ASSERT(node.second.m_count == m_buffer.size(), ());
uint32_t byteCount = m_buffer.size() * sizeof(gpu::TextDynamicVertex);
void * buffer = mutator->AllocateMutationBuffer(byteCount);
if (isVisible)
memcpy(buffer, m_buffer.data(), byteCount);
else
memset(buffer, 0, byteCount);
dp::MutateNode mutateNode;
mutateNode.m_region = node.second;
mutateNode.m_data = make_ref(buffer);
mutator->AddMutation(node.first, mutateNode);
m_isLastVisible = isVisible;
}
bool TextHandle::Update(ScreenBase const & screen)
{
if (!m_glyphsReady)
m_glyphsReady = m_textureManager->AreGlyphsReady(m_text);
return m_glyphsReady;
}
bool TextHandle::IndexesRequired() const
{
// Disable indices usage for text handles.
return false;
}
void TextHandle::SetForceUpdateNormals(bool forceUpdate) const
{
m_forceUpdateNormals = forceUpdate;
}
#ifdef DEBUG_OVERLAYS_OUTPUT
string TextHandle::GetOverlayDebugInfo()
{
ostringstream out;
out << "Text Priority(" << GetPriority() << ") " << GetFeatureID().m_index << " " << strings::ToUtf8(m_text);
return out.str();
}
#endif
} // namespace df
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