z8::ui::DragBehavior类 参考

#include <DragBehavior.h>

类 z8::ui::DragBehavior 继承关系图:

z8::ui::DragBehavior 的协作图:

Public 成员函数
	DragBehavior ()
bool	SetProperty (const std::string &name, const std::string &value) override
void	SetHandle (BaseNode *handle)
bool	IsDragging () const
bool	HasGestureMoved () const
bool	HasInteractiveGeometry () const
EventReply	OnMouseDown (MouseMovArgs args) override
EventReply	OnMouseDrag (MouseMovArgs args) override
EventReply	OnMouseUp (MouseMovArgs args) override
void	SetPreviewOnly (bool previewOnly)
void	OnPointerCaptureLost () override
Public 成员函数 继承自 z8::ui::IBehavior
	IBehavior (int priority=0)
	~IBehavior () override=default
	IBehavior (const IBehavior &)=delete
IBehavior &	operator= (const IBehavior &)=delete
virtual void	OnBeforeLayout (float, float)
virtual void	OnAfterLayout ()
virtual void	OnDragStarted (MouseMovArgs)
virtual void	OnDragCompleted (MouseMovArgs)
virtual void	OnAttached ()
virtual void	OnDetached ()
Public 成员函数 继承自 z8::ui::IProperty
virtual	~IProperty ()=default
Public 成员函数 继承自 z8::EventTarget
virtual	~EventTarget ()=default
virtual EventReply	OnMouseMove (MouseMovArgs)
virtual EventReply	OnMouseWheel (MouseWheelArgs)
virtual EventReply	OnKeyDown (KeyArgs)
virtual EventReply	OnKeyUp (KeyArgs)
virtual EventReply	OnTextInput (wchar_t)
virtual MouseCursor	GetMouseCursor (MouseMovArgs) const

Public 属性
DragProperty	Properties
Public 属性 继承自 z8::ui::IBehavior
BehaviorNode *	Owner = nullptr
int	Priority = 0

静态 Public 属性
static constexpr int	DefaultPriority = 100

Private 属性
BaseNode *	Handle = nullptr
bool	Dragging = false
bool	GestureMoved = false
bool	InteractiveGeometry = false
bool	PreviewOnly = false
float	CurrentLeft = 0.0f
float	CurrentTop = 0.0f
float	CurrentWidth = 0.0f
float	CurrentHeight = 0.0f

详细描述

将宿主从 Flex 流转换为绝对定位并持续移动的独立手势组件。

Handle 是可选的非拥有观察指针。TitleBar 模式只允许从 Handle 开始； Anywhere 模式使用宿主命中框。组件不关心 Panel 或其他具体控件类型。

构造及析构函数说明

DragBehavior()

z8::ui::DragBehavior::DragBehavior ( )

inline

成员函数说明

HasGestureMoved()

bool z8::ui::DragBehavior::HasGestureMoved ( ) const

inline

区分标题单击与已经产生位移的真实拖拽，供日志和 Dock 生命周期使用。

HasInteractiveGeometry()

bool z8::ui::DragBehavior::HasInteractiveGeometry ( ) const

inline

IsDragging()

bool z8::ui::DragBehavior::IsDragging ( ) const

inline

OnMouseDown()

EventReply DragBehavior::OnMouseDown ( MouseMovArgs args )

overridevirtual

重载 z8::EventTarget .

函数调用图:

OnMouseDrag()

EventReply DragBehavior::OnMouseDrag ( MouseMovArgs args )

overridevirtual

重载 z8::EventTarget .

OnMouseUp()

EventReply DragBehavior::OnMouseUp ( MouseMovArgs args )

overridevirtual

重载 z8::EventTarget .

OnPointerCaptureLost()

void z8::ui::DragBehavior::OnPointerCaptureLost ( )

inlineoverridevirtual

重载 z8::EventTarget .

SetHandle()

void z8::ui::DragBehavior::SetHandle ( BaseNode * handle )

inline

SetPreviewOnly()

void z8::ui::DragBehavior::SetPreviewOnly ( bool previewOnly )

inline

仅推进手势状态，由外部拖放系统绘制预览，不修改宿主节点布局。

SetProperty()

bool DragBehavior::SetProperty ( const std::string & name, const std::string & value )

overridevirtual

重载 z8::ui::IProperty .

函数调用图:

类成员变量说明

CurrentHeight

float z8::ui::DragBehavior::CurrentHeight = 0.0f

private

CurrentLeft

float z8::ui::DragBehavior::CurrentLeft = 0.0f

private

CurrentTop

float z8::ui::DragBehavior::CurrentTop = 0.0f

private

CurrentWidth

float z8::ui::DragBehavior::CurrentWidth = 0.0f

private

DefaultPriority

constexpr int z8::ui::DragBehavior::DefaultPriority = 100

staticconstexpr

Dragging

bool z8::ui::DragBehavior::Dragging = false

private

GestureMoved

bool z8::ui::DragBehavior::GestureMoved = false

private

Handle

BaseNode* z8::ui::DragBehavior::Handle = nullptr

private

InteractiveGeometry

bool z8::ui::DragBehavior::InteractiveGeometry = false

private

PreviewOnly

bool z8::ui::DragBehavior::PreviewOnly = false

private

Properties

DragProperty z8::ui::DragBehavior::Properties

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该类的文档由以下文件生成:

• include/UI/Behavior/DragBehavior.h
• src/UI/Behavior/DragBehavior.cpp