Merge pull request #11 from crupest/listitem

Add ListItem.

2 files changed, 129 insertions, 0 deletions

diff --git a/src/ui/controls/list_item.cpp b/src/ui/controls/list_item.cpp
new file mode 100644
index 00000000..bdd44273
--- /dev/null
+++ b/src/ui/controls/list_item.cpp
@@ -0,0 +1,62 @@
+#include "list_item.hpp"
+
+#include "ui/ui_manager.hpp"
+#include "ui/convert_util.hpp"
+
+namespace cru::ui::controls
+{
+    ListItem::ListItem() : Control(true)
+    {
+        const auto predefine_resources = UiManager::GetInstance()->GetPredefineResources();
+
+        brushes_[State::Normal].border_brush = predefine_resources->list_item_normal_border_brush;
+        brushes_[State::Normal].fill_brush   = predefine_resources->list_item_normal_fill_brush;
+        brushes_[State::Hover] .border_brush = predefine_resources->list_item_hover_border_brush;
+        brushes_[State::Hover] .fill_brush   = predefine_resources->list_item_hover_fill_brush;
+        brushes_[State::Select].border_brush = predefine_resources->list_item_select_border_brush;
+        brushes_[State::Select].fill_brush   = predefine_resources->list_item_select_fill_brush;
+    }
+
+    StringView ListItem::GetControlType() const
+    {
+        return control_type;
+    }
+
+    void ListItem::SetState(const State state)
+    {
+        state_ = state;
+        Repaint();
+    }
+
+    void ListItem::OnDrawForeground(ID2D1DeviceContext* device_context)
+    {
+        const auto rect = Rect(Point::Zero(), GetRect(RectRange::Padding).GetSize());
+        device_context->FillRectangle(Convert(rect), brushes_[state_].fill_brush.Get());
+        device_context->DrawRectangle(Convert(rect.Shrink(Thickness(0.5))), brushes_[state_].border_brush.Get(), 1);
+    }
+
+    void ListItem::OnMouseEnterCore(events::MouseEventArgs& args)
+    {
+        if (GetState() == State::Select)
+            return;
+
+        if (IsAnyMouseButtonDown())
+            return;
+
+        SetState(State::Hover);
+    }
+
+    void ListItem::OnMouseLeaveCore(events::MouseEventArgs& args)
+    {
+        if (GetState() == State::Select)
+            return;
+
+        SetState(State::Normal);
+    }
+
+    void ListItem::OnMouseClickCore(events::MouseButtonEventArgs& args)
+    {
+        if (args.GetMouseButton() == MouseButton::Left)
+            SetState(State::Select);
+    }
+}
diff --git a/src/ui/controls/list_item.hpp b/src/ui/controls/list_item.hpp
new file mode 100644
index 00000000..1de89b5f
--- /dev/null
+++ b/src/ui/controls/list_item.hpp
@@ -0,0 +1,67 @@
+#pragma once
+
+#include <map>
+#include <initializer_list>
+
+#include "ui/control.hpp"
+
+namespace cru::ui::controls
+{
+    class ListItem : public Control
+    {
+    public:
+        static constexpr auto control_type = L"ListItem";
+
+        enum class State
+        {
+            Normal,
+            Hover,
+            Select
+        };
+
+    private:
+        struct StateBrush
+        {
+            Microsoft::WRL::ComPtr<ID2D1Brush> border_brush;
+            Microsoft::WRL::ComPtr<ID2D1Brush> fill_brush;
+        };
+
+    public:
+        static ListItem* Create(const std::initializer_list<Control*>& children)
+        {
+            const auto list_item = new ListItem();
+            for (auto control : children)
+                list_item->AddChild(control);
+            return list_item;
+        }
+
+    private:
+        ListItem();
+    public:
+        ListItem(const ListItem& other) = delete;
+        ListItem(ListItem&& other) = delete;
+        ListItem& operator=(const ListItem& other) = delete;
+        ListItem& operator=(ListItem&& other) = delete;
+        ~ListItem() override = default;
+
+        StringView GetControlType() const override;
+
+        State GetState() const
+        {
+            return state_;
+        }
+
+        void SetState(State state);
+
+    protected:
+        void OnDrawForeground(ID2D1DeviceContext* device_context) override;
+
+        void OnMouseEnterCore(events::MouseEventArgs& args) override final;
+        void OnMouseLeaveCore(events::MouseEventArgs& args) override final;
+        void OnMouseClickCore(events::MouseButtonEventArgs& args) override final;
+
+    private:
+        State state_ = State::Normal;
+        std::map<State, StateBrush> brushes_{};
+    };
+}