From 34a64e6ffefaab007578932ddbab931a25f1d56e Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 15 May 2022 14:15:31 +0800
Subject: ...

---
 .../components/properties/OptionalPropertyEditor.h | 65 ++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 src/ThemeBuilder/components/properties/OptionalPropertyEditor.h

(limited to 'src/ThemeBuilder/components/properties/OptionalPropertyEditor.h')

diff --git a/src/ThemeBuilder/components/properties/OptionalPropertyEditor.h b/src/ThemeBuilder/components/properties/OptionalPropertyEditor.h
new file mode 100644
index 00000000..0f22616a
--- /dev/null
+++ b/src/ThemeBuilder/components/properties/OptionalPropertyEditor.h
@@ -0,0 +1,65 @@
+#pragma once
+#include "../Editor.h"
+#include "cru/ui/controls/CheckBox.h"
+#include "cru/ui/controls/FlexLayout.h"
+#include "cru/ui/controls/TextBlock.h"
+
+#include <optional>
+
+namespace cru::theme_builder::components::properties {
+template <typename TEditor>
+class OptionalPropertyEditor : public Editor {
+ public:
+  using PropertyType = typename TEditor::PropertyType;
+
+  OptionalPropertyEditor() {
+    container_.AddChild(&label_);
+    container_.AddChild(&check_box_);
+    check_box_.SetMargin({0, 0, 10, 0});
+    container_.AddChild(editor_.GetRootControl());
+
+    editor_.ChangeEvent()->AddHandler([this](std::nullptr_t) {
+      if (IsEnabled()) {
+        RaiseChangeEvent();
+      }
+    });
+  }
+  ~OptionalPropertyEditor() override {}
+
+  ui::controls::Control* GetRootControl() override { return &container_; }
+
+  String GetLabel() const { return label_.GetText(); }
+  void SetLabel(String label) { label_.SetText(std::move(label)); }
+
+  bool IsEnabled() const { return check_box_.IsChecked(); }
+  void SetEnabled(bool enabled, bool trigger_change = true) {
+    check_box_.SetChecked(enabled);
+    if (trigger_change) {
+      RaiseChangeEvent();
+    }
+  }
+
+  std::optional<PropertyType> GetValue() const {
+    return IsEnabled() ? std::optional<PropertyType>(editor_.GetValue())
+                       : std::nullopt;
+  }
+
+  void SetValue(std::optional<PropertyType> value, bool trigger_change = true) {
+    if (value) {
+      SetEnabled(true, false);
+      editor_.SetValue(*value, false);
+      if (trigger_change) RaiseChangeEvent();
+    } else {
+      SetEnabled(false, trigger_change);
+    }
+  }
+
+  TEditor* GetEditor() { return &editor_; }
+
+ private:
+  ui::controls::FlexLayout container_;
+  ui::controls::TextBlock label_;
+  ui::controls::CheckBox check_box_;
+  TEditor editor_;
+};
+}  // namespace cru::theme_builder::components::properties
-- 
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