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-rw-r--r--src/ui/control.hpp564
1 files changed, 225 insertions, 339 deletions
diff --git a/src/ui/control.hpp b/src/ui/control.hpp
index 8e69fb07..e85d0e6d 100644
--- a/src/ui/control.hpp
+++ b/src/ui/control.hpp
@@ -1,357 +1,243 @@
#pragma once
-
-// ReSharper disable once CppUnusedIncludeDirective
#include "pre.hpp"
-#include "system_headers.hpp"
-#include <unordered_map>
#include <any>
+#include <unordered_map>
#include <utility>
+#include "system_headers.hpp"
#include "base.hpp"
-#include "ui_base.hpp"
-#include "layout_base.hpp"
-#include "events/ui_event.hpp"
#include "cursor.hpp"
-#include "any_map.hpp"
+#include "events/ui_event.hpp"
#include "input_util.hpp"
+#include "ui_base.hpp"
-namespace cru::ui
-{
- class Window;
-
-
- class Control : public Object
- {
- friend class Window;
-
- protected:
- Control() = default;
- public:
- Control(const Control& other) = delete;
- Control(Control&& other) = delete;
- Control& operator=(const Control& other) = delete;
- Control& operator=(Control&& other) = delete;
- ~Control() override = default;
-
- public:
- virtual StringView GetControlType() const = 0;
-
-
- //*************** region: tree ***************
- public:
- //Get the window if attached, otherwise, return nullptr.
- Window* GetWindow() const
- {
- return window_;
- }
-
- Control* GetParent() const
- {
- return parent_;
- }
-
- void SetParent(Control* parent);
-
- void SetDescendantWindow(Window* window);
-
- //Traverse the tree rooted the control including itself.
- void TraverseDescendants(const std::function<void(Control*)>& predicate);
-
- private:
- static void TraverseDescendantsInternal(Control* control, const std::function<void(Control*)>& predicate);
-
- //*************** region: position ***************
- public:
- virtual Point GetPositionInWindow() const = 0;
-
- //Local point to absolute point.
- Point ControlToWindow(const Point& point) const;
-
- //Absolute point to local point.
- Point WindowToControl(const Point& point) const;
-
-
-
- //*************** region: focus ***************
- public:
- bool RequestFocus();
-
- bool HasFocus();
-
-
- //*************** region: cursor ***************
- // If cursor is set to null, then it uses parent's cursor.
- // Window's cursor can't be null.
- public:
- Cursor::Ptr GetCursor() const
- {
- return cursor_;
- }
-
- void SetCursor(const Cursor::Ptr& cursor);
-
-
- //*************** region: additional properties ***************
- public:
- AnyMap* GetAdditionalPropertyMap()
- {
- return &additional_property_map_;
- }
-
-
- //*************** region: events ***************
- public:
- //Raised when mouse enter the control.
- events::RoutedEvent<events::MouseEventArgs> mouse_enter_event;
- //Raised when mouse is leave the control.
- events::RoutedEvent<events::MouseEventArgs> mouse_leave_event;
- //Raised when mouse is move in the control.
- events::RoutedEvent<events::MouseEventArgs> mouse_move_event;
- //Raised when a mouse button is pressed in the control.
- events::RoutedEvent<events::MouseButtonEventArgs> mouse_down_event;
- //Raised when a mouse button is released in the control.
- events::RoutedEvent<events::MouseButtonEventArgs> mouse_up_event;
- //Raised when a mouse button is pressed in the control and released in the control with mouse not leaving it between two operations.
- events::RoutedEvent<events::MouseButtonEventArgs> mouse_click_event;
-
- events::RoutedEvent<events::MouseWheelEventArgs> mouse_wheel_event;
-
- events::RoutedEvent<events::KeyEventArgs> key_down_event;
- events::RoutedEvent<events::KeyEventArgs> key_up_event;
- events::RoutedEvent<events::CharEventArgs> char_event;
-
- events::RoutedEvent<events::FocusChangeEventArgs> get_focus_event;
- events::RoutedEvent<events::FocusChangeEventArgs> lose_focus_event;
-
-
- //*************** region: tree ***************
- protected:
- virtual const std::vector<Control*>& GetInternalChildren() const = 0;
-
- virtual void OnParentChanged(Control* old_parent, Control* new_parent);
- virtual void OnAttachToWindow(Window* window);
- virtual void OnDetachToWindow(Window* window);
-
-
- //*************** region: additional mouse event ***************
- protected:
- virtual void OnMouseClickBegin(MouseButton button);
- virtual void OnMouseClickEnd(MouseButton button);
-
-
- private:
- Window * window_ = nullptr;
- Control* parent_ = nullptr;
-
- Cursor::Ptr cursor_{};
-
- AnyMap additional_property_map_{};
- };
+namespace cru::ui {
+class Window;
+class Control : public Object {
+ friend class Window;
-
- class NoChildControl : public Control
- {
- private:
- // used in GetInternalChildren.
- static const std::vector<Control*> empty_control_vector;
+ protected:
+ Control() = default;
- protected:
- NoChildControl() = default;
- public:
- NoChildControl(const NoChildControl& other) = delete;
- NoChildControl(NoChildControl&& other) = delete;
- NoChildControl& operator=(const NoChildControl& other) = delete;
- NoChildControl& operator=(NoChildControl&& other) = delete;
- ~NoChildControl() override = default;
-
- protected:
- const std::vector<Control*>& GetInternalChildren() const override final
- {
- return empty_control_vector;
- }
- };
-
-
- class ContentControl : public Control
- {
- protected:
- ContentControl();
- public:
- ContentControl(const ContentControl& other) = delete;
- ContentControl(ContentControl&& other) = delete;
- ContentControl& operator=(const ContentControl& other) = delete;
- ContentControl& operator=(ContentControl&& other) = delete;
- ~ContentControl() override;
-
- Control* GetChild() const
- {
- return child_;
- }
-
- void SetChild(Control* child);
-
- protected:
- const std::vector<Control*>& GetInternalChildren() const override final
- {
- return child_vector_;
- }
-
- // Override should call base.
- virtual void OnChildChanged(Control* old_child, Control* new_child);
-
- private:
- std::vector<Control*> child_vector_;
- Control*& child_;
- };
-
-
- class MultiChildControl : public Control
- {
- protected:
- MultiChildControl() = default;
- public:
- MultiChildControl(const MultiChildControl& other) = delete;
- MultiChildControl(MultiChildControl&& other) = delete;
- MultiChildControl& operator=(const MultiChildControl& other) = delete;
- MultiChildControl& operator=(MultiChildControl&& other) = delete;
- ~MultiChildControl() override;
-
- const std::vector<Control*>& GetInternalChildren() const override final
- {
- return children_;
- }
-
- const std::vector<Control*>& GetChildren() const
- {
- return children_;
- }
-
- //Add a child at tail.
- void AddChild(Control* control);
-
- //Add a child before the position.
- void AddChild(Control* control, int position);
-
- //Remove a child.
- void RemoveChild(Control* child);
-
- //Remove a child at specified position.
- void RemoveChild(int position);
-
- protected:
- virtual void OnAddChild(Control* child);
- virtual void OnRemoveChild(Control* child);
-
- private:
- std::vector<Control*> children_;
- };
-
-
-
- //*************** region: event dispatcher helper ***************
-
- // Dispatch the event.
- //
- // This will raise routed event of the control and its parent and parent's
- // parent ... (until "last_receiver" if it's not nullptr) with appropriate args.
- //
- // First tunnel from top to bottom possibly stopped by "handled" flag in EventArgs.
- // Second bubble from bottom to top possibly stopped by "handled" flag in EventArgs.
- // Last direct to each control.
- //
- // Args is of type "EventArgs". The first init argument is "sender", which is
- // automatically bound to each receiving control. The second init argument is
- // "original_sender", which is unchanged. And "args" will be perfectly forwarded
- // as the rest arguments.
- template<typename EventArgs, typename... Args>
- void DispatchEvent(Control* const original_sender, events::RoutedEvent<EventArgs> Control::* event_ptr, Control* const last_receiver, Args&&... args)
- {
- std::list<Control*> receive_list;
-
- auto parent = original_sender;
- while (parent != last_receiver)
- {
- receive_list.push_back(parent);
- parent = parent->GetInternalParent();
- }
-
- auto handled = false;
-
- //tunnel
- for (auto i = receive_list.crbegin(); i != receive_list.crend(); ++i)
- {
- EventArgs event_args(*i, original_sender, std::forward<Args>(args)...);
- (*i->*event_ptr).tunnel.Raise(event_args);
- if (event_args.IsHandled())
- {
- handled = true;
- break;
- }
- }
-
- //bubble
- if (!handled)
- {
- for (auto i : receive_list)
- {
- EventArgs event_args(i, original_sender, std::forward<Args>(args)...);
- (i->*event_ptr).bubble.Raise(event_args);
- if (event_args.IsHandled())
- break;
- }
- }
-
- //direct
- for (auto i : receive_list)
- {
- EventArgs event_args(i, original_sender, std::forward<Args>(args)...);
- (i->*event_ptr).direct.Raise(event_args);
- }
+ public:
+ Control(const Control& other) = delete;
+ Control(Control&& other) = delete;
+ Control& operator=(const Control& other) = delete;
+ Control& operator=(Control&& other) = delete;
+ ~Control() override = default;
+
+ public:
+ virtual StringView GetControlType() const = 0;
+
+ //*************** region: tree ***************
+ public:
+ // Get the window if attached, otherwise, return nullptr.
+ Window* GetWindow() const { return window_; }
+
+ Control* GetParent() const { return parent_; }
+
+ virtual const std::vector<Control*>& GetChildren() const = 0;
+
+ // Traverse the tree rooted the control including itself.
+ void TraverseDescendants(const std::function<void(Control*)>& predicate);
+
+ void _SetParent(Control* parent);
+ void _SetDescendantWindow(Window* window);
+
+ private:
+ static void TraverseDescendantsInternal(
+ Control* control, const std::function<void(Control*)>& predicate);
+
+ //*************** region: focus ***************
+ public:
+ bool RequestFocus();
+
+ bool HasFocus();
+
+ //*************** region: cursor ***************
+ // If cursor is set to null, then it uses parent's cursor.
+ // Window's cursor can't be null.
+ public:
+ Cursor::Ptr GetCursor() const { return cursor_; }
+
+ void SetCursor(const Cursor::Ptr& cursor);
+
+ //*************** region: events ***************
+ public:
+ // Raised when mouse enter the control.
+ events::RoutedEvent<events::MouseEventArgs> mouse_enter_event;
+ // Raised when mouse is leave the control.
+ events::RoutedEvent<events::MouseEventArgs> mouse_leave_event;
+ // Raised when mouse is move in the control.
+ events::RoutedEvent<events::MouseEventArgs> mouse_move_event;
+ // Raised when a mouse button is pressed in the control.
+ events::RoutedEvent<events::MouseButtonEventArgs> mouse_down_event;
+ // Raised when a mouse button is released in the control.
+ events::RoutedEvent<events::MouseButtonEventArgs> mouse_up_event;
+ // Raised when a mouse button is pressed in the control and released in the
+ // control with mouse not leaving it between two operations.
+ events::RoutedEvent<events::MouseButtonEventArgs> mouse_click_event;
+
+ events::RoutedEvent<events::MouseWheelEventArgs> mouse_wheel_event;
+
+ events::RoutedEvent<events::KeyEventArgs> key_down_event;
+ events::RoutedEvent<events::KeyEventArgs> key_up_event;
+ events::RoutedEvent<events::CharEventArgs> char_event;
+
+ events::RoutedEvent<events::FocusChangeEventArgs> get_focus_event;
+ events::RoutedEvent<events::FocusChangeEventArgs> lose_focus_event;
+
+ //*************** region: tree ***************
+ protected:
+ virtual void OnParentChanged(Control* old_parent, Control* new_parent);
+ virtual void OnAttachToWindow(Window* window);
+ virtual void OnDetachToWindow(Window* window);
+
+ //*************** region: additional mouse event ***************
+ protected:
+ virtual void OnMouseClickBegin(MouseButton button);
+ virtual void OnMouseClickEnd(MouseButton button);
+
+ private:
+ Window* window_ = nullptr;
+ Control* parent_ = nullptr;
+
+ Cursor::Ptr cursor_{};
+};
+
+class NoChildControl : public Control {
+ private:
+ static const std::vector<Control*> empty_control_vector;
+
+ protected:
+ NoChildControl() = default;
+
+ public:
+ NoChildControl(const NoChildControl& other) = delete;
+ NoChildControl(NoChildControl&& other) = delete;
+ NoChildControl& operator=(const NoChildControl& other) = delete;
+ NoChildControl& operator=(NoChildControl&& other) = delete;
+ ~NoChildControl() override = default;
+
+ protected:
+ const std::vector<Control*>& GetChildren() const override final {
+ return empty_control_vector;
+ }
+};
+
+class ContentControl : public Control {
+ protected:
+ ContentControl();
+
+ public:
+ ContentControl(const ContentControl& other) = delete;
+ ContentControl(ContentControl&& other) = delete;
+ ContentControl& operator=(const ContentControl& other) = delete;
+ ContentControl& operator=(ContentControl&& other) = delete;
+ ~ContentControl() override;
+
+ const std::vector<Control*>& GetChildren() const override final {
+ return child_vector_;
+ }
+ Control* GetChild() const { return child_; }
+ void SetChild(Control* child);
+
+ protected:
+ virtual void OnChildChanged(Control* old_child, Control* new_child);
+
+ private:
+ std::vector<Control*> child_vector_;
+ Control*& child_;
+};
+
+class MultiChildControl : public Control {
+ protected:
+ MultiChildControl() = default;
+
+ public:
+ MultiChildControl(const MultiChildControl& other) = delete;
+ MultiChildControl(MultiChildControl&& other) = delete;
+ MultiChildControl& operator=(const MultiChildControl& other) = delete;
+ MultiChildControl& operator=(MultiChildControl&& other) = delete;
+ ~MultiChildControl() override;
+
+ const std::vector<Control*>& GetChildren() const override final {
+ return children_;
+ }
+
+ void AddChild(Control* control, int position);
+
+ void RemoveChild(int position);
+
+ protected:
+ virtual void OnAddChild(Control* child);
+ virtual void OnRemoveChild(Control* child);
+
+ private:
+ std::vector<Control*> children_;
+};
+
+//*************** region: event dispatcher helper ***************
+
+// Dispatch the event.
+//
+// This will raise routed event of the control and its parent and parent's
+// parent ... (until "last_receiver" if it's not nullptr) with appropriate args.
+//
+// First tunnel from top to bottom possibly stopped by "handled" flag in
+// EventArgs. Second bubble from bottom to top possibly stopped by "handled"
+// flag in EventArgs. Last direct to each control.
+//
+// Args is of type "EventArgs". The first init argument is "sender", which is
+// automatically bound to each receiving control. The second init argument is
+// "original_sender", which is unchanged. And "args" will be perfectly forwarded
+// as the rest arguments.
+template <typename EventArgs, typename... Args>
+void DispatchEvent(Control* const original_sender,
+ events::RoutedEvent<EventArgs> Control::*event_ptr,
+ Control* const last_receiver, Args&&... args) {
+ std::list<Control*> receive_list;
+
+ auto parent = original_sender;
+ while (parent != last_receiver) {
+ receive_list.push_back(parent);
+ parent = parent->GetInternalParent();
+ }
+
+ auto handled = false;
+
+ // tunnel
+ for (auto i = receive_list.crbegin(); i != receive_list.crend(); ++i) {
+ EventArgs event_args(*i, original_sender, std::forward<Args>(args)...);
+ (*i->*event_ptr).tunnel.Raise(event_args);
+ if (event_args.IsHandled()) {
+ handled = true;
+ break;
}
-
-
- //*************** region: tree helper ***************
-
- // Find the lowest common ancestor.
- // Return nullptr if "left" and "right" are not in the same tree.
- Control* FindLowestCommonAncestor(Control* left, Control* right);
-
-
- //*************** region: create helper ***************
-
- template <typename TControl, typename... Args>
- TControl* CreateWithLayout(const LayoutSideParams& width, const LayoutSideParams& height, Args&&... args)
- {
- static_assert(std::is_base_of_v<Control, TControl>, "TControl is not a control class.");
- TControl* control = TControl::Create(std::forward<Args>(args)...);
- control->GetLayoutParams()->width = width;
- control->GetLayoutParams()->height = height;
- return control;
+ }
+
+ // bubble
+ if (!handled) {
+ for (auto i : receive_list) {
+ EventArgs event_args(i, original_sender, std::forward<Args>(args)...);
+ (i->*event_ptr).bubble.Raise(event_args);
+ if (event_args.IsHandled()) break;
}
+ }
- template <typename TControl, typename... Args>
- TControl* CreateWithLayout(const Thickness& padding, const Thickness& margin, Args&&... args)
- {
- static_assert(std::is_base_of_v<Control, TControl>, "TControl is not a control class.");
- TControl* control = TControl::Create(std::forward<Args>(args)...);
- control->GetLayoutParams()->padding = padding;
- control->GetLayoutParams()->margin = margin;
- return control;
- }
+ // direct
+ for (auto i : receive_list) {
+ EventArgs event_args(i, original_sender, std::forward<Args>(args)...);
+ (i->*event_ptr).direct.Raise(event_args);
+ }
+}
- template <typename TControl, typename... Args>
- TControl* CreateWithLayout(const LayoutSideParams& width, const LayoutSideParams& height, const Thickness& padding, const Thickness& margin, Args&&... args)
- {
- static_assert(std::is_base_of_v<Control, TControl>, "TControl is not a control class.");
- TControl* control = TControl::Create(std::forward<Args>(args)...);
- control->GetLayoutParams()->width = width;
- control->GetLayoutParams()->height = height;
- control->GetLayoutParams()->padding = padding;
- control->GetLayoutParams()->margin = margin;
- return control;
- }
+//*************** region: tree helper ***************
- using ControlList = std::initializer_list<Control*>;
-}
+// Find the lowest common ancestor.
+// Return nullptr if "left" and "right" are not in the same tree.
+Control* FindLowestCommonAncestor(Control* left, Control* right);
+
+} // namespace cru::ui
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-29 05:55:56 +0000