From 06d1d0442276a05b6caad6e3468f4afb1e8ee5df Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Sun, 28 Jun 2020 00:03:11 +0800
Subject: ...

---
 src/ui/controls/Button.cpp | 73 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 src/ui/controls/Button.cpp

(limited to 'src/ui/controls/Button.cpp')

diff --git a/src/ui/controls/Button.cpp b/src/ui/controls/Button.cpp
new file mode 100644
index 00000000..6f6af878
--- /dev/null
+++ b/src/ui/controls/Button.cpp
@@ -0,0 +1,73 @@
+#include "cru/ui/controls/Button.hpp"
+#include <memory>
+
+#include "../Helper.hpp"
+#include "cru/platform/graph/Brush.hpp"
+#include "cru/platform/native/Cursor.hpp"
+#include "cru/platform/native/UiApplication.hpp"
+#include "cru/ui/render/BorderRenderObject.hpp"
+#include "cru/ui/UiManager.hpp"
+#include "cru/ui/Window.hpp"
+
+namespace cru::ui::controls {
+using cru::platform::native::SystemCursorType;
+
+namespace {
+void Set(render::BorderRenderObject* o, const ButtonStateStyle& s) {
+  o->SetBorderBrush(s.border_brush);
+  o->SetBorderThickness(s.border_thickness);
+  o->SetBorderRadius(s.border_radius);
+  o->SetForegroundBrush(s.foreground_brush);
+  o->SetBackgroundBrush(s.background_brush);
+}
+
+std::shared_ptr<platform::native::ICursor> GetSystemCursor(
+    SystemCursorType type) {
+  return GetUiApplication()->GetCursorManager()->GetSystemCursor(type);
+}
+}  // namespace
+
+Button::Button() : click_detector_(this) {
+  style_ = UiManager::GetInstance()->GetThemeResources()->button_style;
+
+  render_object_ = std::make_unique<render::BorderRenderObject>();
+  render_object_->SetAttachedControl(this);
+  Set(render_object_.get(), style_.normal);
+  render_object_->SetBorderEnabled(true);
+
+  click_detector_.StateChangeEvent()->AddHandler(
+      [this](const ClickState& state) {
+        switch (state) {
+          case ClickState::None:
+            Set(render_object_.get(), style_.normal);
+            SetCursor(GetSystemCursor(SystemCursorType::Arrow));
+            break;
+          case ClickState::Hover:
+            Set(render_object_.get(), style_.hover);
+            SetCursor(GetSystemCursor(SystemCursorType::Hand));
+            break;
+          case ClickState::Press:
+            Set(render_object_.get(), style_.press);
+            SetCursor(GetSystemCursor(SystemCursorType::Hand));
+            break;
+          case ClickState::PressInactive:
+            Set(render_object_.get(), style_.press_cancel);
+            SetCursor(GetSystemCursor(SystemCursorType::Arrow));
+            break;
+        }
+      });
+}
+
+Button::~Button() = default;
+
+render::RenderObject* Button::GetRenderObject() const {
+  return render_object_.get();
+}
+
+void Button::OnChildChanged(Control* old_child, Control* new_child) {
+  if (old_child != nullptr) render_object_->RemoveChild(0);
+  if (new_child != nullptr)
+    render_object_->AddChild(new_child->GetRenderObject(), 0);
+}
+
+}  // namespace cru::ui::controls
-- 
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