open3d::visualization::gui::Widget Class Reference

#include <Widget.h>

Inheritance diagram for open3d::visualization::gui::Widget:

Data Structures
struct	Constraints
struct	Impl

Public Types
enum class	DrawResult { NONE , REDRAW , RELAYOUT }
enum class	EventResult { IGNORED , CONSUMED , DISCARD }

Public Member Functions
	Widget ()
	Widget (const std::vector< std::shared_ptr< Widget >> &children)
virtual	~Widget ()
virtual void	AddChild (std::shared_ptr< Widget > child)
virtual const std::vector< std::shared_ptr< Widget > >	GetChildren () const
virtual const Rect &	GetFrame () const
	Returns the frame size in pixels. More...
virtual void	SetFrame (const Rect &f)
virtual const Color &	GetBackgroundColor () const
virtual bool	IsDefaultBackgroundColor () const
virtual void	SetBackgroundColor (const Color &color)
virtual bool	IsVisible () const
virtual void	SetVisible (bool vis)
virtual bool	IsEnabled () const
virtual void	SetEnabled (bool enabled)
virtual void	SetTooltip (const char *text)
virtual const char *	GetTooltip () const
virtual Size	CalcPreferredSize (const LayoutContext &context, const Constraints &constraints) const
virtual Size	CalcMinimumSize (const LayoutContext &context) const
virtual void	Layout (const LayoutContext &context)
virtual DrawResult	Draw (const DrawContext &context)
virtual EventResult	Mouse (const MouseEvent &e)
virtual EventResult	Key (const KeyEvent &e)
virtual DrawResult	Tick (const TickEvent &e)

Static Public Attributes
static constexpr int	DIM_GROW = 10000

Protected Member Functions
void	DrawImGuiPushEnabledState ()
void	DrawImGuiPopEnabledState ()
void	DrawImGuiTooltip ()

Friends
class	Window

Member Enumeration Documentation

DrawResult

enum open3d::visualization::gui::Widget::DrawResult

strong

Enumerator
NONE
REDRAW
RELAYOUT

EventResult

enum open3d::visualization::gui::Widget::EventResult

strong

Enumerator
IGNORED
CONSUMED
DISCARD

Constructor & Destructor Documentation

Widget() [1/2]

open3d::visualization::gui::Widget::Widget

(

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Widget() [2/2]

open3d::visualization::gui::Widget::Widget ( const std::vector< std::shared_ptr< Widget >> &  children )

explicit

~Widget()

open3d::visualization::gui::Widget::~Widget ( )

virtual

Member Function Documentation

AddChild()

void open3d::visualization::gui::Widget::AddChild ( std::shared_ptr< Widget >  child )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

CalcMinimumSize()

Size open3d::visualization::gui::Widget::CalcMinimumSize ( const LayoutContext &  context ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy, open3d::visualization::gui::TreeView, and open3d::visualization::gui::ListView.

CalcPreferredSize()

Size open3d::visualization::gui::Widget::CalcPreferredSize ( const LayoutContext &  context, const Constraints &  constraints  ) const

virtual

Reimplemented in open3d::visualization::gui::Slider, open3d::visualization::gui::WidgetProxy, open3d::visualization::gui::VectorEdit, open3d::visualization::gui::TreeView, open3d::visualization::gui::ColormapTreeCell, open3d::visualization::gui::LUTTreeCell, open3d::visualization::gui::CheckableTextTreeCell, open3d::visualization::gui::ToggleSwitch, open3d::visualization::gui::TextEdit, open3d::visualization::gui::TabControl, open3d::visualization::gui::StackedWidget, open3d::visualization::gui::RadioButton, open3d::visualization::gui::ProgressBar, open3d::visualization::gui::NumberEdit, open3d::visualization::gui::ListView, open3d::visualization::gui::VGrid, open3d::visualization::gui::CollapsableVert, open3d::visualization::gui::Layout1D::Fixed, open3d::visualization::gui::Layout1D, open3d::visualization::gui::Label, open3d::visualization::gui::ImageWidget, open3d::visualization::gui::FileDialog, open3d::visualization::gui::Dialog, open3d::visualization::gui::Combobox, open3d::visualization::gui::ColorEdit, open3d::visualization::gui::Checkbox, open3d::visualization::gui::Button, and open3d::visualization::SmallButton.

Draw()

Widget::DrawResult open3d::visualization::gui::Widget::Draw ( const DrawContext &  context )

virtual

Draws the widget. If this is a Dear ImGUI widget, this is where the actual event processing happens. Return NONE if no action needs to be taken, REDRAW if the widget needs to be redrawn (e.g. its value changed), and RELAYOUT if the widget wishes to change size.

Reimplemented in open3d::visualization::gui::WidgetProxy, open3d::visualization::gui::VectorEdit, open3d::visualization::gui::TreeView, open3d::visualization::gui::ToggleSwitch, open3d::visualization::gui::TextEdit, open3d::visualization::gui::TabControl, open3d::visualization::gui::StackedWidget, open3d::visualization::gui::Slider, open3d::visualization::gui::SceneWidget, open3d::visualization::gui::RadioButton, open3d::visualization::gui::ProgressBar, open3d::visualization::gui::NumberEdit, open3d::visualization::gui::ListView, open3d::visualization::gui::ScrollableVert, open3d::visualization::gui::CollapsableVert, open3d::visualization::gui::Label, open3d::visualization::gui::ImageWidget, open3d::visualization::gui::Dialog, open3d::visualization::gui::Combobox, open3d::visualization::gui::ColorEdit, open3d::visualization::gui::Checkbox, and open3d::visualization::gui::Button.

DrawImGuiPopEnabledState()

void open3d::visualization::gui::Widget::DrawImGuiPopEnabledState ( )

protected

DrawImGuiPushEnabledState()

void open3d::visualization::gui::Widget::DrawImGuiPushEnabledState ( )

protected

DrawImGuiTooltip()

void open3d::visualization::gui::Widget::DrawImGuiTooltip ( )

protected

GetBackgroundColor()

const Color & open3d::visualization::gui::Widget::GetBackgroundColor ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

GetChildren()

const std::vector< std::shared_ptr< Widget > > open3d::visualization::gui::Widget::GetChildren ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

GetFrame()

const Rect & open3d::visualization::gui::Widget::GetFrame ( ) const

virtual

Returns the frame size in pixels.

Reimplemented in open3d::visualization::gui::WidgetProxy.

GetTooltip()

const char * open3d::visualization::gui::Widget::GetTooltip ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

IsDefaultBackgroundColor()

bool open3d::visualization::gui::Widget::IsDefaultBackgroundColor ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

IsEnabled()

bool open3d::visualization::gui::Widget::IsEnabled ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

IsVisible()

bool open3d::visualization::gui::Widget::IsVisible ( ) const

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

Key()

Widget::EventResult open3d::visualization::gui::Widget::Key ( const KeyEvent &  e )

virtual

Widgets that use Dear ImGUI should not need to override this, as Dear ImGUI will take care of all the key handling during the Draw().

Reimplemented in open3d::visualization::gui::WidgetProxy, and open3d::visualization::gui::SceneWidget.

Layout()

void open3d::visualization::gui::Widget::Layout ( const LayoutContext &  context )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy, open3d::visualization::gui::TreeView, open3d::visualization::gui::ColormapTreeCell, open3d::visualization::gui::LUTTreeCell, open3d::visualization::gui::CheckableTextTreeCell, open3d::visualization::gui::TabControl, open3d::visualization::gui::StackedWidget, open3d::visualization::gui::VGrid, open3d::visualization::gui::CollapsableVert, open3d::visualization::gui::Layout1D, open3d::visualization::gui::ImageWidget, and open3d::visualization::gui::Dialog.

Mouse()

Widget::EventResult open3d::visualization::gui::Widget::Mouse ( const MouseEvent &  e )

virtual

Widgets that use Dear ImGUI should not need to override this, as Dear ImGUI will take care of all the mouse handling during the Draw().

Reimplemented in open3d::visualization::gui::WidgetProxy, and open3d::visualization::gui::SceneWidget.

SetBackgroundColor()

void open3d::visualization::gui::Widget::SetBackgroundColor ( const Color &  color )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

SetEnabled()

void open3d::visualization::gui::Widget::SetEnabled ( bool  enabled )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

SetFrame()

void open3d::visualization::gui::Widget::SetFrame ( const Rect &  f )

virtual

The frame is in pixels. The size of a pixel varies on different and operating systems now frequently scale text sizes on high DPI monitors. Prefer using a Layout to using this function, but if you must use it, it is best to use a multiple of Window::GetTheme().fontSize, which represents 1em and is scaled according to the scaling factor of the window.

Reimplemented in open3d::visualization::gui::WidgetProxy, and open3d::visualization::gui::SceneWidget.

SetTooltip()

void open3d::visualization::gui::Widget::SetTooltip ( const char *  text )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

SetVisible()

void open3d::visualization::gui::Widget::SetVisible ( bool  vis )

virtual

Reimplemented in open3d::visualization::gui::WidgetProxy.

Tick()

Widget::DrawResult open3d::visualization::gui::Widget::Tick ( const TickEvent &  e )

virtual

Tick events are sent regularly and allow for things like smoothly moving the camera based on keys that are pressed, or animations. Return DrawResult::REDRAW if you want to be redrawn.

Reimplemented in open3d::visualization::gui::WidgetProxy, and open3d::visualization::gui::SceneWidget.

Friends And Related Function Documentation

Window

friend class Window

friend

Field Documentation

DIM_GROW

constexpr int open3d::visualization::gui::Widget::DIM_GROW = 10000

staticconstexpr

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The documentation for this class was generated from the following files:

• /home/runner/work/Open3D/Open3D/cpp/open3d/visualization/gui/Widget.h (9238339 (Tue Mar 14 18:49:09 2023 -0700))
• /home/runner/work/Open3D/Open3D/cpp/open3d/visualization/gui/Widget.cpp (9238339 (Tue Mar 14 18:49:09 2023 -0700))