Add XCUI editor collection primitives and stack rollback

engine/src/UI/Widgets/UIEditorCollectionPrimitives.cpp

@@ -0,0 +1,114 @@
+#include <XCEngine/UI/Widgets/UIEditorCollectionPrimitives.h>
+
+namespace XCEngine {
+namespace UI {
+namespace Widgets {
+
+namespace {
+
+float ResolveFloatToken(
+    const Style::UITheme& theme,
+    const char* tokenName,
+    float fallbackValue) {
+    const Style::UITokenResolveResult result =
+        theme.ResolveToken(tokenName, Style::UIStyleValueType::Float);
+    if (result.status != Style::UITokenResolveStatus::Resolved) {
+        return fallbackValue;
+    }
+
+    const float* value = result.value.TryGetFloat();
+    return value != nullptr ? *value : fallbackValue;
+}
+
+} // namespace
+
+UIEditorCollectionPrimitiveKind ClassifyUIEditorCollectionPrimitive(std::string_view tagName) {
+    if (tagName == "ScrollView") {
+        return UIEditorCollectionPrimitiveKind::ScrollView;
+    }
+    if (tagName == "TreeView") {
+        return UIEditorCollectionPrimitiveKind::TreeView;
+    }
+    if (tagName == "TreeItem") {
+        return UIEditorCollectionPrimitiveKind::TreeItem;
+    }
+    if (tagName == "ListView") {
+        return UIEditorCollectionPrimitiveKind::ListView;
+    }
+    if (tagName == "ListItem") {
+        return UIEditorCollectionPrimitiveKind::ListItem;
+    }
+    if (tagName == "PropertySection") {
+        return UIEditorCollectionPrimitiveKind::PropertySection;
+    }
+    if (tagName == "FieldRow") {
+        return UIEditorCollectionPrimitiveKind::FieldRow;
+    }
+
+    return UIEditorCollectionPrimitiveKind::None;
+}
+
+bool IsUIEditorCollectionPrimitiveContainer(UIEditorCollectionPrimitiveKind kind) {
+    return kind == UIEditorCollectionPrimitiveKind::ScrollView ||
+        kind == UIEditorCollectionPrimitiveKind::TreeView ||
+        kind == UIEditorCollectionPrimitiveKind::ListView ||
+        kind == UIEditorCollectionPrimitiveKind::PropertySection;
+}
+
+bool UsesUIEditorCollectionPrimitiveColumnLayout(UIEditorCollectionPrimitiveKind kind) {
+    return kind == UIEditorCollectionPrimitiveKind::TreeView ||
+        kind == UIEditorCollectionPrimitiveKind::ListView ||
+        kind == UIEditorCollectionPrimitiveKind::PropertySection;
+}
+
+bool IsUIEditorCollectionPrimitiveHoverable(UIEditorCollectionPrimitiveKind kind) {
+    return kind == UIEditorCollectionPrimitiveKind::TreeItem ||
+        kind == UIEditorCollectionPrimitiveKind::ListItem ||
+        kind == UIEditorCollectionPrimitiveKind::FieldRow;
+}
+
+bool DoesUIEditorCollectionPrimitiveClipChildren(UIEditorCollectionPrimitiveKind kind) {
+    return kind == UIEditorCollectionPrimitiveKind::ScrollView ||
+        kind == UIEditorCollectionPrimitiveKind::TreeView ||
+        kind == UIEditorCollectionPrimitiveKind::ListView;
+}
+
+float ResolveUIEditorCollectionPrimitivePadding(
+    UIEditorCollectionPrimitiveKind kind,
+    const Style::UITheme& theme) {
+    return kind == UIEditorCollectionPrimitiveKind::TreeView ||
+            kind == UIEditorCollectionPrimitiveKind::ListView ||
+            kind == UIEditorCollectionPrimitiveKind::PropertySection
+        ? ResolveFloatToken(theme, "space.cardInset", 12.0f)
+        : 0.0f;
+}
+
+float ResolveUIEditorCollectionPrimitiveDefaultHeight(
+    UIEditorCollectionPrimitiveKind kind,
+    const Style::UITheme& theme) {
+    switch (kind) {
+    case UIEditorCollectionPrimitiveKind::TreeItem:
+        return ResolveFloatToken(theme, "size.treeItemHeight", 28.0f);
+    case UIEditorCollectionPrimitiveKind::ListItem:
+        return ResolveFloatToken(theme, "size.listItemHeight", 60.0f);
+    case UIEditorCollectionPrimitiveKind::FieldRow:
+        return ResolveFloatToken(theme, "size.fieldRowHeight", 32.0f);
+    case UIEditorCollectionPrimitiveKind::PropertySection:
+        return ResolveFloatToken(theme, "size.propertySectionHeight", 148.0f);
+    default:
+        return 0.0f;
+    }
+}
+
+float ResolveUIEditorCollectionPrimitiveIndent(
+    UIEditorCollectionPrimitiveKind kind,
+    const Style::UITheme& theme,
+    float indentLevel) {
+    return kind == UIEditorCollectionPrimitiveKind::TreeItem
+        ? indentLevel * ResolveFloatToken(theme, "size.treeIndent", 18.0f)
+        : 0.0f;
+}
+
+} // namespace Widgets
+} // namespace UI
+} // namespace XCEngine