Add omarchy-hyprland-titlebars

The native Hyprland plugin behind Omarchy's floating workspaces: themed
titlebars and edge snapping, built from a hyprbars fork. It is rebuilt
with every Hyprland change, since a plugin only loads into the exact
build it was compiled against.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

pkgbuilds/omarchy-hyprland-titlebars/BarPassElement.cpp

@@ -0,0 +1,30 @@
+#include "BarPassElement.hpp"
+#include <hyprland/src/render/OpenGL.hpp>
+#include <hyprland/src/render/Renderer.hpp>
+#include "barDeco.hpp"
+
+using namespace Render::GL;
+
+COmarchyFloatingBarPassElement::COmarchyFloatingBarPassElement(const COmarchyFloatingBarPassElement::SBarData &data_) : data(data_) { ; }
+
+std::vector<UP<IPassElement>> COmarchyFloatingBarPassElement::draw() {
+  data.deco->renderPass(g_pHyprRenderer->m_renderData.pMonitor.lock(), data.a);
+  return {};
+}
+
+bool COmarchyFloatingBarPassElement::needsLiveBlur() {
+  static auto PENABLEBLURGLOBAL = CConfigValue<Config::BOOL>("decoration:blur:enabled");
+
+  CHyprColor color = data.deco->m_bForcedBarColor.value_or(CHyprColor{static_cast<uint64_t>(g_pOmarchyFloatingGlobalState->config.barColor->value())});
+  color.a *= data.a;
+  const bool SHOULDBLUR = g_pOmarchyFloatingGlobalState->config.barBlur->value() && *PENABLEBLURGLOBAL && color.a < 1.F;
+
+  return SHOULDBLUR;
+}
+
+std::optional<CBox> COmarchyFloatingBarPassElement::boundingBox() {
+  // Temporary fix: expand the bar bb a bit, otherwise occlusion gets too aggressive.
+  return data.deco->assignedBoxGlobal().translate(-g_pHyprRenderer->m_renderData.pMonitor->m_position).expand(10);
+}
+
+bool COmarchyFloatingBarPassElement::needsPrecomputeBlur() { return false; }