diff options
Diffstat (limited to 'src/ui/control.hpp')
| -rw-r--r-- | src/ui/control.hpp | 179 |
1 files changed, 92 insertions, 87 deletions
diff --git a/src/ui/control.hpp b/src/ui/control.hpp index d6ad9f02..f3751ddf 100644 --- a/src/ui/control.hpp +++ b/src/ui/control.hpp @@ -249,34 +249,35 @@ namespace cru::ui //*************** region: events *************** //Raised when mouse enter the control. - events::MouseEvent mouse_enter_event; + events::RoutedEvent<events::MouseEventArgs> mouse_enter_event; //Raised when mouse is leave the control. - events::MouseEvent mouse_leave_event; + events::RoutedEvent<events::MouseEventArgs> mouse_leave_event; //Raised when mouse is move in the control. - events::MouseEvent mouse_move_event; + events::RoutedEvent<events::MouseEventArgs> mouse_move_event; //Raised when a mouse button is pressed in the control. - events::MouseButtonEvent mouse_down_event; + events::RoutedEvent<events::MouseButtonEventArgs> mouse_down_event; //Raised when a mouse button is released in the control. - events::MouseButtonEvent mouse_up_event; + 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::MouseButtonEvent mouse_click_event; + events::RoutedEvent<events::MouseButtonEventArgs> mouse_click_event; - events::MouseWheelEvent mouse_wheel_event; + events::RoutedEvent<events::MouseWheelEventArgs> mouse_wheel_event; - events::KeyEvent key_down_event; - events::KeyEvent key_up_event; - events::CharEvent char_event; + events::RoutedEvent<events::KeyEventArgs> key_down_event; + events::RoutedEvent<events::KeyEventArgs> key_up_event; + events::RoutedEvent<events::CharEventArgs> char_event; - events::FocusChangeEvent get_focus_event; - events::FocusChangeEvent lose_focus_event; + events::RoutedEvent<events::FocusChangeEventArgs> get_focus_event; + events::RoutedEvent<events::FocusChangeEventArgs> lose_focus_event; - events::DrawEvent draw_content_event; - events::DrawEvent draw_background_event; - events::DrawEvent draw_foreground_event; + Event<events::DrawEventArgs> draw_content_event; + Event<events::DrawEventArgs> draw_background_event; + Event<events::DrawEventArgs> draw_foreground_event; - events::PositionChangedEvent position_changed_event; - events::SizeChangedEvent size_changed_event; + Event<events::PositionChangedEventArgs> position_changed_event; + Event<events::SizeChangedEventArgs> size_changed_event; + //*************** region: tree event *************** protected: //Invoked when a child is added. Overrides should invoke base. virtual void OnAddChild(Control* child); @@ -288,32 +289,15 @@ namespace cru::ui //Invoked when the control is detached to a window. Overrides should invoke base. virtual void OnDetachToWindow(Window* window); - //*************** region: graphic events *************** + + //*************** region: graphic event *************** private: void OnDrawDecoration(ID2D1DeviceContext* device_context); void OnDrawCore(ID2D1DeviceContext* device_context); - protected: - virtual void OnDrawContent(ID2D1DeviceContext* device_context); - virtual void OnDrawForeground(ID2D1DeviceContext* device_context); - virtual void OnDrawBackground(ID2D1DeviceContext* device_context); - // For a event, the window event system will first dispatch event to core functions. - // Therefore for particular controls, you should do essential actions in core functions, - // and override version should invoke base version. The base core function - // in "Control" class will call corresponding non-core function and call "Raise" on - // event objects. So user custom actions should be done by overriding non-core function - // and calling the base version is optional. //*************** region: position and size event *************** - virtual void OnPositionChanged(events::PositionChangedEventArgs& args); - virtual void OnSizeChanged(events::SizeChangedEventArgs& args); - - virtual void OnPositionChangedCore(events::PositionChangedEventArgs& args); - virtual void OnSizeChangedCore(events::SizeChangedEventArgs& args); - - void RaisePositionChangedEvent(events::PositionChangedEventArgs& args); - void RaiseSizeChangedEvent(events::SizeChangedEventArgs& args); - + protected: void RegenerateGeometryInfo(); const GeometryInfo& GetGeometryInfo() const @@ -321,63 +305,19 @@ namespace cru::ui return geometry_info_; } - //*************** region: mouse event *************** - virtual void OnMouseEnter(events::MouseEventArgs& args); - virtual void OnMouseLeave(events::MouseEventArgs& args); - virtual void OnMouseMove(events::MouseEventArgs& args); - virtual void OnMouseDown(events::MouseButtonEventArgs& args); - virtual void OnMouseUp(events::MouseButtonEventArgs& args); - virtual void OnMouseClick(events::MouseButtonEventArgs& args); - - virtual void OnMouseEnterCore(events::MouseEventArgs& args); - virtual void OnMouseLeaveCore(events::MouseEventArgs& args); - virtual void OnMouseMoveCore(events::MouseEventArgs& args); - virtual void OnMouseDownCore(events::MouseButtonEventArgs& args); - virtual void OnMouseUpCore(events::MouseButtonEventArgs& args); - virtual void OnMouseClickCore(events::MouseButtonEventArgs& args); - - virtual void OnMouseWheel(events::MouseWheelEventArgs& args); - virtual void OnMouseWheelCore(events::MouseWheelEventArgs& args); - - void RaiseMouseEnterEvent(events::MouseEventArgs& args); - void RaiseMouseLeaveEvent(events::MouseEventArgs& args); - void RaiseMouseMoveEvent(events::MouseEventArgs& args); - void RaiseMouseDownEvent(events::MouseButtonEventArgs& args); - void RaiseMouseUpEvent(events::MouseButtonEventArgs& args); - void RaiseMouseClickEvent(events::MouseButtonEventArgs& args); - - void RaiseMouseWheelEvent(events::MouseWheelEventArgs& args); + //*************** region: mouse event *************** + protected: virtual void OnMouseClickBegin(MouseButton button); virtual void OnMouseClickEnd(MouseButton button); - //*************** region: keyboard event *************** - virtual void OnKeyDown(events::KeyEventArgs& args); - virtual void OnKeyUp(events::KeyEventArgs& args); - virtual void OnChar(events::CharEventArgs& args); - - virtual void OnKeyDownCore(events::KeyEventArgs& args); - virtual void OnKeyUpCore(events::KeyEventArgs& args); - virtual void OnCharCore(events::CharEventArgs& args); - - void RaiseKeyDownEvent(events::KeyEventArgs& args); - void RaiseKeyUpEvent(events::KeyEventArgs& args); - void RaiseCharEvent(events::CharEventArgs& args); - - //*************** region: focus event *************** - virtual void OnGetFocus(events::FocusChangeEventArgs& args); - virtual void OnLoseFocus(events::FocusChangeEventArgs& args); - - virtual void OnGetFocusCore(events::FocusChangeEventArgs& args); - virtual void OnLoseFocusCore(events::FocusChangeEventArgs& args); - - void RaiseGetFocusEvent(events::FocusChangeEventArgs& args); - void RaiseLoseFocusEvent(events::FocusChangeEventArgs& args); //*************** region: layout *************** + private: Size OnMeasureCore(const Size& available_size); void OnLayoutCore(const Rect& rect); + protected: virtual Size OnMeasureContent(const Size& available_size); virtual void OnLayoutContent(const Rect& rect); @@ -416,8 +356,6 @@ namespace cru::ui ControlPositionCache position_cache_{}; - bool is_mouse_inside_ = false; - std::unordered_map<MouseButton, bool> is_mouse_click_valid_map_ { { MouseButton::Left, true }, @@ -450,6 +388,71 @@ namespace cru::ui Cursor::Ptr cursor_{}; }; + + //*************** 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->GetParent(); + } + + 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); + } + } + + + //*************** 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); @@ -468,6 +471,8 @@ namespace cru::ui } + //*************** region: create helper *************** + template <typename TControl, typename... Args> TControl* CreateWithLayout(const Thickness& padding, const Thickness& margin, Args&&... args) { |