z8::ui::ScrollBehavior类 参考

#include <ScrollBehavior.h>

类 z8::ui::ScrollBehavior 继承关系图:

z8::ui::ScrollBehavior 的协作图:

Public 成员函数
	ScrollBehavior ()=default
void	BindVertical (BaseNode *viewport, BaseNode *content, ScrollBarNode *scrollBar)
void	SetProperties (const ScrollProperty &properties)
bool	SetProperty (const std::string &name, const std::string &value) override
void	SetOffsetY (float offset)
float	GetOffsetY () const
float	GetMaximumOffsetY () const
EventReply	OnMouseWheel (MouseWheelArgs args) override
void	OnAfterLayout () override
void	OnDetached () 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	OnDragStarted (MouseMovArgs)
virtual void	OnDragCompleted (MouseMovArgs)
virtual void	OnAttached ()
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	OnMouseDown (MouseMovArgs)
virtual EventReply	OnMouseMove (MouseMovArgs)
virtual EventReply	OnMouseDrag (MouseMovArgs)
virtual EventReply	OnMouseUp (MouseMovArgs)
virtual EventReply	OnKeyDown (KeyArgs)
virtual EventReply	OnKeyUp (KeyArgs)
virtual EventReply	OnTextInput (wchar_t)
virtual MouseCursor	GetMouseCursor (MouseMovArgs) const
virtual void	OnPointerCaptureLost ()

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

Private 成员函数
void	ApplyProperties ()
void	SynchronizeVisuals () const
void	UpdateRange ()

Private 属性
BaseNode *	Viewport = nullptr
BaseNode *	Content = nullptr
ScrollBarNode *	VerticalScrollBar = nullptr
float	OffsetY = 0.0f
float	MaximumOffsetY = 0.0f

详细描述

连接 viewport、content 与可选滚动条的滚动行为。

三个节点均为非拥有观察指针，并应与行为宿主处于同一复合控件子树。行为只 依赖 BaseNode 的裁剪和 ScrollBarNode 的 value/range

构造及析构函数说明

ScrollBehavior()

z8::ui::ScrollBehavior::ScrollBehavior ( )

default

成员函数说明

ApplyProperties()

void ScrollBehavior::ApplyProperties ( )

private

这是这个函数的调用关系图:

BindVertical()

void ScrollBehavior::BindVertical	(	BaseNode *	viewport,
		BaseNode *	content,
		ScrollBarNode *	scrollBar )

函数调用图:

GetMaximumOffsetY()

float z8::ui::ScrollBehavior::GetMaximumOffsetY ( ) const

inline

GetOffsetY()

float z8::ui::ScrollBehavior::GetOffsetY ( ) const

inline

OnAfterLayout()

void ScrollBehavior::OnAfterLayout ( )

overridevirtual

重载 z8::ui::IBehavior .

函数调用图:

OnDetached()

void ScrollBehavior::OnDetached ( )

overridevirtual

重载 z8::ui::IBehavior .

OnMouseWheel()

EventReply ScrollBehavior::OnMouseWheel ( MouseWheelArgs args )

overridevirtual

重载 z8::EventTarget .

函数调用图:

SetOffsetY()

void ScrollBehavior::SetOffsetY

(

float

offset

)

函数调用图:

这是这个函数的调用关系图:

SetProperties()

void ScrollBehavior::SetProperties

(

const ScrollProperty &

properties

)

函数调用图:

SetProperty()

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

overridevirtual

重载 z8::ui::IProperty .

函数调用图:

SynchronizeVisuals()

void ScrollBehavior::SynchronizeVisuals ( ) const

private

函数调用图:

这是这个函数的调用关系图:

UpdateRange()

void ScrollBehavior::UpdateRange ( )

private

函数调用图:

这是这个函数的调用关系图:

类成员变量说明

Content

BaseNode* z8::ui::ScrollBehavior::Content = nullptr

private

MaximumOffsetY

float z8::ui::ScrollBehavior::MaximumOffsetY = 0.0f

private

OffsetY

float z8::ui::ScrollBehavior::OffsetY = 0.0f

private

Properties

ScrollProperty z8::ui::ScrollBehavior::Properties

VerticalScrollBar

ScrollBarNode* z8::ui::ScrollBehavior::VerticalScrollBar = nullptr

private

Viewport

BaseNode* z8::ui::ScrollBehavior::Viewport = nullptr

private

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该类的文档由以下文件生成:

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