add workspace indicators

src/widgets/workspaceIndicator.cpp

@@ -0,0 +1,114 @@
+#include "widgets/workspaceIndicator.hpp"
+
+#include <exception>
+#include <gtkmm/widget.h>
+#include <sigc++/functors/mem_fun.h>
+
+WorkspaceIndicator::WorkspaceIndicator(HyprlandService &service, int monitorId)
+    : Gtk::Box(Gtk::Orientation::HORIZONTAL), m_service(service), m_monitorId(monitorId)
+{
+    set_spacing(6);
+    set_margin_top(2);
+    set_margin_bottom(2);
+
+    m_workspaceConnection = m_service.workspaceStateChanged.connect(
+        sigc::mem_fun(*this, &WorkspaceIndicator::on_workspace_update));
+    m_monitorConnection = m_service.monitorStateChanged.connect(
+        sigc::mem_fun(*this, &WorkspaceIndicator::on_monitor_update));
+
+    rebuild();
+}
+
+WorkspaceIndicator::~WorkspaceIndicator()
+{
+    if (m_workspaceConnection.connected())
+    {
+        m_workspaceConnection.disconnect();
+    }
+
+    if (m_monitorConnection.connected())
+    {
+        m_monitorConnection.disconnect();
+    }
+}
+
+void WorkspaceIndicator::on_workspace_update(int monitorId)
+{
+    if (monitorId != m_monitorId && monitorId != -1)
+    {
+        return;
+    }
+
+    rebuild();
+}
+
+void WorkspaceIndicator::on_monitor_update()
+{
+    rebuild();
+}
+
+void WorkspaceIndicator::rebuild()
+{
+    clear_children();
+
+    HyprlandService::Monitor *monitor = nullptr;
+    try
+    {
+        monitor = m_service.getMonitorById(m_monitorId);
+    }
+    catch (const std::exception &)
+    {
+        return;
+    }
+
+    if (monitor == nullptr)
+    {
+        return;
+    }
+
+    for (int workspaceId = 1; workspaceId <= HyprlandService::kWorkspaceSlotCount; ++workspaceId)
+    {
+        const HyprlandService::WorkspaceState *state = nullptr;
+        auto it = monitor->workspaceStates.find(workspaceId);
+        if (it != monitor->workspaceStates.end())
+        {
+            state = &it->second;
+        }
+
+        const std::string display = (state && !state->label.empty()) ? state->label : std::to_string(workspaceId);
+
+        auto label = Gtk::make_managed<Gtk::Label>(display);
+        label->add_css_class("workspace-pill");
+
+        if (state != nullptr)
+        {
+            if (state->focused)
+            {
+                label->add_css_class("workspace-pill-focused");
+            }
+            else if (state->active)
+            {
+                label->add_css_class("workspace-pill-active");
+            }
+
+            if (state->urgent)
+            {
+                label->add_css_class("workspace-pill-urgent");
+            }
+        }
+
+        append(*label);
+    }
+
+}
+
+void WorkspaceIndicator::clear_children()
+{
+    Gtk::Widget *child = get_first_child();
+    while (child != nullptr)
+    {
+        Gtk::Widget *next = child->get_next_sibling();
+        remove(*child);
+        child = next;
+    }
+}