chore: refactor

src/gui/layout/main_layout.cpp

@@ -0,0 +1,116 @@
+#include "main_layout.hpp"
+#include "imgui.h"
+#include "imgui_internal.h"
+
+namespace clrsync::gui::layout
+{
+
+void main_layout::render_menu_bar()
+{
+    ImGuiViewport *vp = ImGui::GetMainViewport();
+
+    const float bar_height = 30.0f;
+
+    ImGui::SetNextWindowPos(vp->Pos);
+    ImGui::SetNextWindowSize(ImVec2(vp->Size.x, bar_height));
+    ImGui::SetNextWindowViewport(vp->ID);
+
+    ImGuiWindowFlags flags = ImGuiWindowFlags_NoDocking | ImGuiWindowFlags_NoTitleBar |
+                             ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove |
+                             ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoSavedSettings;
+
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(8, 2));
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(8, 3));
+
+    ImGui::Begin("##TopBar", nullptr, flags);
+
+    ImGuiStyle &style = ImGui::GetStyle();
+
+    const char *settings_label = "Settings";
+    const char *about_label = "About";
+
+    ImVec2 settings_size = ImGui::CalcTextSize(settings_label);
+    ImVec2 about_size = ImGui::CalcTextSize(about_label);
+
+    float total_width = settings_size.x + style.FramePadding.x * 2.0f + about_size.x +
+                        style.FramePadding.x * 2.0f + style.ItemSpacing.x;
+
+    float pos_x = ImGui::GetWindowWidth() - total_width - style.WindowPadding.x;
+
+    float button_height = ImGui::GetFrameHeight();
+    float window_height = ImGui::GetWindowHeight();
+    float center_y = (window_height - button_height) * 0.5f;
+
+    ImGui::SetCursorPos(ImVec2(pos_x, center_y));
+
+    if (ImGui::Button(settings_label))
+    {
+        m_show_settings = true;
+    }
+
+    ImGui::SameLine();
+    ImGui::SetCursorPosY(center_y);
+
+    if (ImGui::Button(about_label))
+    {
+        m_show_about = true;
+    }
+
+    ImGui::End();
+
+    ImGui::PopStyleVar(4);
+}
+
+void main_layout::setup_dockspace(bool &first_time)
+{
+    const ImGuiViewport *viewport = ImGui::GetMainViewport();
+    const float topbar_height = 32.0f;
+    ImGui::SetNextWindowPos(ImVec2(viewport->Pos.x, viewport->Pos.y + topbar_height));
+    ImGui::SetNextWindowSize(ImVec2(viewport->Size.x, viewport->Size.y - topbar_height));
+    ImGui::SetNextWindowViewport(viewport->ID);
+
+    constexpr ImGuiWindowFlags flags = ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoCollapse |
+                                       ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoMove |
+                                       ImGuiWindowFlags_NoBringToFrontOnFocus |
+                                       ImGuiWindowFlags_NoNavFocus;
+
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowRounding, 0.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowBorderSize, 0.0f);
+    ImGui::PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(0, 0));
+    ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(8, 3));
+    ImGui::Begin("MainDockSpace", nullptr, flags);
+    ImGui::PopStyleVar(4);
+
+    ImGuiID dockspace_id = ImGui::GetID("MainDockSpace");
+
+    if (first_time)
+    {
+        first_time = false;
+
+        ImGui::DockBuilderRemoveNode(dockspace_id);
+        ImGui::DockBuilderAddNode(dockspace_id, ImGuiDockNodeFlags_DockSpace);
+        ImGui::DockBuilderSetNodeSize(dockspace_id, viewport->Size);
+
+        ImGuiID center, right;
+        ImGui::DockBuilderSplitNode(dockspace_id, ImGuiDir_Right, 0.5f, &right, &center);
+
+        ImGuiDockNode *center_node = ImGui::DockBuilderGetNode(center);
+        if (center_node)
+        {
+            center_node->LocalFlags |= ImGuiDockNodeFlags_CentralNode;
+        }
+
+        ImGui::DockBuilderDockWindow("Color Schemes", right);
+        ImGui::DockBuilderDockWindow("Color Preview", center);
+        ImGui::DockBuilderDockWindow("Templates", center);
+
+        ImGui::DockBuilderFinish(dockspace_id);
+    }
+
+    ImGui::DockSpace(dockspace_id, ImVec2{0, 0}, ImGuiDockNodeFlags_None);
+    ImGui::End();
+}
+
+} // namespace clrsync::gui::layout

src/gui/layout/main_layout.hpp

@@ -0,0 +1,28 @@
+#ifndef CLRSYNC_GUI_LAYOUT_MAIN_LAYOUT_HPP
+#define CLRSYNC_GUI_LAYOUT_MAIN_LAYOUT_HPP
+
+namespace clrsync::gui::layout
+{
+
+class main_layout
+{
+  public:
+    void setup_dockspace(bool &first_time);
+    void render_menu_bar();
+
+    bool should_show_about() const { return m_show_about; }
+    bool should_show_settings() const { return m_show_settings; }
+    void clear_actions()
+    {
+        m_show_about = false;
+        m_show_settings = false;
+    }
+
+  private:
+    bool m_show_about = false;
+    bool m_show_settings = false;
+};
+
+} // namespace clrsync::gui::layout
+
+#endif // CLRSYNC_GUI_LAYOUT_MAIN_LAYOUT_HPP