Refactor XCUI editor module layout

new_editor/include/XCEditor/Collections/UIEditorTabStrip.h

@@ -0,0 +1,157 @@
+#pragma once
+
+#include <XCEngine/UI/DrawData.h>
+#include <XCEngine/UI/Layout/UITabStripLayout.h>
+#include <XCEngine/UI/Widgets/UITabStripModel.h>
+
+#include <cstddef>
+#include <cstdint>
+#include <string>
+#include <string_view>
+#include <vector>
+
+namespace XCEngine::UI::Editor::Widgets {
+
+inline constexpr std::size_t UIEditorTabStripInvalidIndex =
+    ::XCEngine::UI::Widgets::UITabStripModel::InvalidIndex;
+
+struct UIEditorTabStripItem {
+    std::string tabId = {};
+    std::string title = {};
+    bool closable = true;
+    float desiredHeaderLabelWidth = 0.0f;
+};
+
+struct UIEditorTabStripState {
+    std::size_t selectedIndex = UIEditorTabStripInvalidIndex;
+    std::size_t hoveredIndex = UIEditorTabStripInvalidIndex;
+    std::size_t closeHoveredIndex = UIEditorTabStripInvalidIndex;
+    bool focused = false;
+};
+
+struct UIEditorTabStripMetrics {
+    ::XCEngine::UI::Layout::UITabStripMetrics layoutMetrics =
+        ::XCEngine::UI::Layout::UITabStripMetrics{ 32.0f, 88.0f, 12.0f, 1.0f };
+    float estimatedGlyphWidth = 7.0f;
+    float closeButtonExtent = 14.0f;
+    float closeButtonGap = 8.0f;
+    float closeInsetRight = 12.0f;
+    float closeInsetY = 0.0f;
+    float labelInsetX = 12.0f;
+    float labelInsetY = -1.0f;
+    float baseBorderThickness = 1.0f;
+    float selectedBorderThickness = 1.5f;
+    float focusedBorderThickness = 2.0f;
+};
+
+struct UIEditorTabStripPalette {
+    ::XCEngine::UI::UIColor stripBackgroundColor =
+        ::XCEngine::UI::UIColor(0.15f, 0.15f, 0.16f, 1.0f);
+    ::XCEngine::UI::UIColor headerBackgroundColor =
+        ::XCEngine::UI::UIColor(0.18f, 0.18f, 0.19f, 1.0f);
+    ::XCEngine::UI::UIColor contentBackgroundColor =
+        ::XCEngine::UI::UIColor(0.15f, 0.15f, 0.16f, 1.0f);
+    ::XCEngine::UI::UIColor stripBorderColor =
+        ::XCEngine::UI::UIColor(0.30f, 0.32f, 0.34f, 1.0f);
+    ::XCEngine::UI::UIColor focusedBorderColor =
+        ::XCEngine::UI::UIColor(0.78f, 0.80f, 0.84f, 1.0f);
+    ::XCEngine::UI::UIColor tabColor =
+        ::XCEngine::UI::UIColor(0.21f, 0.22f, 0.24f, 1.0f);
+    ::XCEngine::UI::UIColor tabHoveredColor =
+        ::XCEngine::UI::UIColor(0.27f, 0.28f, 0.30f, 1.0f);
+    ::XCEngine::UI::UIColor tabSelectedColor =
+        ::XCEngine::UI::UIColor(0.33f, 0.35f, 0.38f, 1.0f);
+    ::XCEngine::UI::UIColor tabBorderColor =
+        ::XCEngine::UI::UIColor(0.32f, 0.34f, 0.36f, 1.0f);
+    ::XCEngine::UI::UIColor tabHoveredBorderColor =
+        ::XCEngine::UI::UIColor(0.42f, 0.44f, 0.47f, 1.0f);
+    ::XCEngine::UI::UIColor tabSelectedBorderColor =
+        ::XCEngine::UI::UIColor(0.50f, 0.52f, 0.56f, 1.0f);
+    ::XCEngine::UI::UIColor textPrimary =
+        ::XCEngine::UI::UIColor(0.93f, 0.94f, 0.96f, 1.0f);
+    ::XCEngine::UI::UIColor textSecondary =
+        ::XCEngine::UI::UIColor(0.70f, 0.72f, 0.74f, 1.0f);
+    ::XCEngine::UI::UIColor textMuted =
+        ::XCEngine::UI::UIColor(0.58f, 0.59f, 0.62f, 1.0f);
+    ::XCEngine::UI::UIColor closeButtonColor =
+        ::XCEngine::UI::UIColor(0.21f, 0.22f, 0.24f, 1.0f);
+    ::XCEngine::UI::UIColor closeButtonHoveredColor =
+        ::XCEngine::UI::UIColor(0.27f, 0.28f, 0.30f, 1.0f);
+    ::XCEngine::UI::UIColor closeButtonBorderColor =
+        ::XCEngine::UI::UIColor(0.42f, 0.44f, 0.47f, 1.0f);
+    ::XCEngine::UI::UIColor closeGlyphColor =
+        ::XCEngine::UI::UIColor(0.93f, 0.94f, 0.96f, 1.0f);
+};
+
+struct UIEditorTabStripLayout {
+    ::XCEngine::UI::UIRect bounds = {};
+    ::XCEngine::UI::UIRect headerRect = {};
+    ::XCEngine::UI::UIRect contentRect = {};
+    std::vector<::XCEngine::UI::UIRect> tabHeaderRects = {};
+    std::vector<::XCEngine::UI::UIRect> closeButtonRects = {};
+    std::vector<bool> showCloseButtons = {};
+    std::size_t selectedIndex = UIEditorTabStripInvalidIndex;
+};
+
+enum class UIEditorTabStripHitTargetKind : std::uint8_t {
+    None = 0,
+    HeaderBackground,
+    Tab,
+    CloseButton,
+    Content
+};
+
+struct UIEditorTabStripHitTarget {
+    UIEditorTabStripHitTargetKind kind = UIEditorTabStripHitTargetKind::None;
+    std::size_t index = UIEditorTabStripInvalidIndex;
+};
+
+float ResolveUIEditorTabStripDesiredHeaderLabelWidth(
+    const UIEditorTabStripItem& item,
+    const UIEditorTabStripMetrics& metrics = {});
+
+std::size_t ResolveUIEditorTabStripSelectedIndex(
+    const std::vector<UIEditorTabStripItem>& items,
+    std::string_view selectedTabId,
+    std::size_t fallbackIndex = UIEditorTabStripInvalidIndex);
+
+std::size_t ResolveUIEditorTabStripSelectedIndexAfterClose(
+    std::size_t selectedIndex,
+    std::size_t closedIndex,
+    std::size_t itemCountBeforeClose);
+
+UIEditorTabStripLayout BuildUIEditorTabStripLayout(
+    const ::XCEngine::UI::UIRect& bounds,
+    const std::vector<UIEditorTabStripItem>& items,
+    const UIEditorTabStripState& state,
+    const UIEditorTabStripMetrics& metrics = {});
+
+UIEditorTabStripHitTarget HitTestUIEditorTabStrip(
+    const UIEditorTabStripLayout& layout,
+    const UIEditorTabStripState& state,
+    const ::XCEngine::UI::UIPoint& point);
+
+void AppendUIEditorTabStripBackground(
+    ::XCEngine::UI::UIDrawList& drawList,
+    const UIEditorTabStripLayout& layout,
+    const UIEditorTabStripState& state,
+    const UIEditorTabStripPalette& palette = {},
+    const UIEditorTabStripMetrics& metrics = {});
+
+void AppendUIEditorTabStripForeground(
+    ::XCEngine::UI::UIDrawList& drawList,
+    const UIEditorTabStripLayout& layout,
+    const std::vector<UIEditorTabStripItem>& items,
+    const UIEditorTabStripState& state,
+    const UIEditorTabStripPalette& palette = {},
+    const UIEditorTabStripMetrics& metrics = {});
+
+void AppendUIEditorTabStrip(
+    ::XCEngine::UI::UIDrawList& drawList,
+    const ::XCEngine::UI::UIRect& bounds,
+    const std::vector<UIEditorTabStripItem>& items,
+    const UIEditorTabStripState& state,
+    const UIEditorTabStripPalette& palette = {},
+    const UIEditorTabStripMetrics& metrics = {});
+
+} // namespace XCEngine::UI::Editor::Widgets