Repo created

libs/drape_frontend/gui/debug_label.cpp

@@ -0,0 +1,96 @@
+#include "drape_frontend/gui/debug_label.hpp"
+
+#include "drape_frontend/gui/drape_gui.hpp"
+
+#include <functional>
+#include <set>
+#include <utility>
+
+using namespace std::placeholders;
+
+namespace gui
+{
+class DebugLabelHandle : public MutableLabelHandle
+{
+  using TBase = MutableLabelHandle;
+
+public:
+  DebugLabelHandle(uint32_t id, dp::Anchor anchor, m2::PointF const & pivot, ref_ptr<dp::TextureManager> tex,
+                   TUpdateDebugLabelFn const & onUpdateFn)
+    : MutableLabelHandle(id, anchor, pivot)
+    , m_onUpdateFn(onUpdateFn)
+  {
+    SetTextureManager(tex);
+  }
+
+  bool Update(ScreenBase const & screen) override
+  {
+    std::string content;
+    bool const isVisible = m_onUpdateFn(screen, content);
+
+    SetIsVisible(isVisible);
+    SetContent(content);
+
+    return TBase::Update(screen);
+  }
+
+private:
+  TUpdateDebugLabelFn m_onUpdateFn;
+};
+
+void AddSymbols(std::string const & str, std::set<char> & symbols)
+{
+  for (size_t i = 0, sz = str.length(); i < sz; ++i)
+    symbols.insert(str[i]);
+}
+
+void DebugInfoLabels::AddLabel(ref_ptr<dp::TextureManager> tex, std::string const & caption,
+                               TUpdateDebugLabelFn const & onUpdateFn)
+{
+  std::string alphabet;
+  std::set<char> symbols;
+  AddSymbols(caption, symbols);
+  AddSymbols("0123456789.-e", symbols);
+
+  alphabet.reserve(symbols.size());
+  for (auto const & ch : symbols)
+    alphabet.push_back(ch);
+
+  MutableLabelDrawer::Params params;
+  params.m_anchor = dp::LeftTop;
+  params.m_alphabet = alphabet;
+  params.m_maxLength = 100;
+  params.m_font = DrapeGui::GetGuiTextFont();
+  params.m_font.m_color = dp::Color(0, 0, 255, 255);
+  params.m_font.m_size *= 1.2;
+  params.m_pivot = m_position.m_pixelPivot;
+
+#ifdef RENDER_DEBUG_INFO_LABELS
+  uint32_t const id = GuiHandleDebugLabel + m_labelsCount;
+
+  params.m_handleCreator = [id, onUpdateFn, tex](dp::Anchor anchor, m2::PointF const & pivot)
+  { return make_unique_dp<DebugLabelHandle>(id, anchor, pivot, tex, onUpdateFn); };
+#endif
+  m_labelsParams.push_back(params);
+  ++m_labelsCount;
+}
+
+drape_ptr<ShapeRenderer> DebugInfoLabels::Draw(ref_ptr<dp::GraphicsContext> context, ref_ptr<dp::TextureManager> tex)
+{
+  drape_ptr<ShapeRenderer> renderer = make_unique_dp<ShapeRenderer>();
+
+  m2::PointF pos = m_position.m_pixelPivot;
+
+  for (auto & params : m_labelsParams)
+  {
+    params.m_pivot.y = pos.y;
+    m2::PointF textSize =
+        MutableLabelDrawer::Draw(context, params, tex, std::bind(&ShapeRenderer::AddShape, renderer.get(), _1, _2));
+    pos.y += 2 * textSize.y;
+  }
+
+  m_labelsParams.clear();
+
+  return renderer;
+}
+}  // namespace gui