#include <DockWorkspace.h>

z8::ui::PanelDragSession 的协作图:

[图例]

Public 属性
PanelDragState	State = PanelDragState::Idle

DragPayloadType	PayloadType = DragPayloadType::None

PanelNode *	PayloadPanel = nullptr

PanelGroupNode *	PayloadGroup = nullptr

PanelGroupNode *	SourceGroup = nullptr

PanelGroupNode *	TargetGroup = nullptr

BaseNode *	Panel = nullptr

DockNodeID	SourceNode = 0

int	SourceTabIndex = -1

bool	SourceWasFloating = false

bool	PreviewVisible = false

DockRect	SourceFloatingRect

float	PressClientX = 0.0f

float	PressClientY = 0.0f

float	MouseClientX = 0.0f

float	MouseClientY = 0.0f

float	GrabOffsetX = 0.0f

float	GrabOffsetY = 0.0f

DockRect	FloatingPreviewRect

DockNodeID	DockTarget = 0

DockSide	Side = DockSide::Center

int	TargetTabIndex = -1

DockRect	DockPreviewRect

详细描述

一次标题栏拖拽的全部临时状态；其生命周期内 DockTree 保持只读。

类成员变量说明

◆ DockPreviewRect

DockRect z8::ui::PanelDragSession::DockPreviewRect

◆ DockTarget

DockNodeID z8::ui::PanelDragSession::DockTarget = 0

◆ FloatingPreviewRect

DockRect z8::ui::PanelDragSession::FloatingPreviewRect

◆ GrabOffsetX

float z8::ui::PanelDragSession::GrabOffsetX = 0.0f

◆ GrabOffsetY

float z8::ui::PanelDragSession::GrabOffsetY = 0.0f

◆ MouseClientX

float z8::ui::PanelDragSession::MouseClientX = 0.0f

◆ MouseClientY

float z8::ui::PanelDragSession::MouseClientY = 0.0f

◆ Panel

BaseNode* z8::ui::PanelDragSession::Panel = nullptr

参与预览与 DockTree 查询的 Group；Panel 拖动时仍指向来源 Group。

◆ PayloadGroup

PanelGroupNode* z8::ui::PanelDragSession::PayloadGroup = nullptr

◆ PayloadPanel

PanelNode* z8::ui::PanelDragSession::PayloadPanel = nullptr

◆ PayloadType

DragPayloadType z8::ui::PanelDragSession::PayloadType = DragPayloadType::None

◆ PressClientX

float z8::ui::PanelDragSession::PressClientX = 0.0f

◆ PressClientY

float z8::ui::PanelDragSession::PressClientY = 0.0f

◆ PreviewVisible

bool z8::ui::PanelDragSession::PreviewVisible = false

当前指针位置是否构成有效预览；来源区域使用 Floating 而不是 Dock 预览。

◆ Side

DockSide z8::ui::PanelDragSession::Side = DockSide::Center

◆ SourceFloatingRect

DockRect z8::ui::PanelDragSession::SourceFloatingRect

◆ SourceGroup

PanelGroupNode* z8::ui::PanelDragSession::SourceGroup = nullptr

◆ SourceNode

DockNodeID z8::ui::PanelDragSession::SourceNode = 0

◆ SourceTabIndex

int z8::ui::PanelDragSession::SourceTabIndex = -1

◆ SourceWasFloating

bool z8::ui::PanelDragSession::SourceWasFloating = false

◆ State

PanelDragState z8::ui::PanelDragSession::State = PanelDragState::Idle

◆ TargetGroup

PanelGroupNode* z8::ui::PanelDragSession::TargetGroup = nullptr

明确的标题栏操作目标：空白区用于跨组加入，同组已有 Tab 用于交换。普通 Center Leaf 不设置它，避免把内容区域误解释为页签合并。

◆ TargetTabIndex

int z8::ui::PanelDragSession::TargetTabIndex = -1

同组 Panel 拖动时命中的目标页签；-1 表示空白标题栏合入或非页签目标。

该结构体的文档由以下文件生成:

include/UI/Dock/DockWorkspace.h

Public 属性