mrpt::gui::CDisplayWindowGUI Class Reference

Detailed Description

A window with powerful GUI capabilities, via the nanogui library.

You can add a background mrpt::opengl::COpenGLScene object rendered on the background of the entire window by setting an object in field background_scene, locking its mutex background_scene_mtx.

Refer to nanogui API docs or MRPT examples for further usage examples. A typical lifecycle of a GUI app with this class might look like:

.. code-block:: cpp

nanogui::init(); { mrpt::gui::CDisplayWindowGUI win; win.drawAll(); win.setVisible(true); nanogui::mainloop(); } nanogui::shutdown();

mrpt::gui::CDisplayWindowGUI screenshot

Definition at line 71 of file CDisplayWindowGUI.h.

#include <mrpt/gui/CDisplayWindowGUI.h>

Inheritance diagram for mrpt::gui::CDisplayWindowGUI:

Public Member Functions
Direct access to underlying nanogui API
nanogui::Window *	nanogui_win ()

Protected Member Functions
	CDisplayWindowGUI (const CDisplayWindowGUI &)=delete
CDisplayWindowGUI &	operator= (const CDisplayWindowGUI &)=delete
	CDisplayWindowGUI (CDisplayWindowGUI &&)=delete
CDisplayWindowGUI &	operator= (CDisplayWindowGUI &&)=delete
virtual bool	keyboardEvent (int key, int scancode, int action, int modifiers) override
virtual void	drawContents () override
Internal virtual functions to handle GUI events
virtual bool	mouseMotionEvent (const nanogui::Vector2i &p, const nanogui::Vector2i &rel, int button, int modifiers) override
virtual bool	mouseButtonEvent (const nanogui::Vector2i &p, int button, bool down, int modifiers) override
virtual bool	scrollEvent (const nanogui::Vector2i &p, const nanogui::Vector2f &rel) override
virtual bool	dropEvent (const std::vector< std::string > &filenames) override

Protected Attributes
nanogui::Window *	m_window = nullptr
	the pointer is owned by the parent class Screen, no need to delete it More...
internal::NanoGUICanvasHeadless	m_background_canvas
	Used to keep track of mouse events on the camera. More...
std::function< void(void)>	m_loopCallback
std::function< bool(const std::vector< std::string > &)>	m_dropFilesCallback
std::function< bool(int, int, int, int)>	m_keyboardCallback

Ctor and basic window set up
using	Ptr = std::shared_ptr< CDisplayWindowGUI >
using	ConstPtr = std::shared_ptr< const CDisplayWindowGUI >
	CDisplayWindowGUI (const std::string &caption=std::string(), unsigned int width=400, unsigned int height=300, const CDisplayWindowGUI_Params &p=CDisplayWindowGUI_Params())
virtual	~CDisplayWindowGUI () override
void	resize (unsigned int width, unsigned int height)
	Resizes the window. More...
void	setPos (int x, int y)
	Changes the position of the window on the screen. More...
void	setWindowTitle (const std::string &str)
	Changes the window title. More...
void	setLoopCallback (const std::function< void(void)> &callback)
	Every time the window is about to be repainted, an optional callback can be called, if provided via this method. More...
const auto &	loopCallback () const
void	setDropFilesCallback (const std::function< bool(const std::vector< std::string > &)> &callback)
	Sets a handle for file drop events. More...
const auto &	dropFilesCallback () const
void	setKeyboardCallback (const std::function< bool(int, int, int, int)> &callback)
const auto &	keyboardCallback () const
template<typename... Args>
static Ptr	Create (Args &&... args)
	Class factory returning a smart pointer. More...

Access to full-window (background) GL scene
mrpt::opengl::COpenGLScene::Ptr	background_scene
std::mutex	background_scene_mtx
CGlCanvasBase &	camera ()
const CGlCanvasBase &	camera () const

Member Typedef Documentation

ConstPtr

using mrpt::gui::CDisplayWindowGUI::ConstPtr = std::shared_ptr<const CDisplayWindowGUI>

Definition at line 77 of file CDisplayWindowGUI.h.

Ptr

using mrpt::gui::CDisplayWindowGUI::Ptr = std::shared_ptr<CDisplayWindowGUI>

Definition at line 76 of file CDisplayWindowGUI.h.

Constructor & Destructor Documentation

CDisplayWindowGUI() [1/3]

CDisplayWindowGUI::CDisplayWindowGUI	(	const std::string &	caption = std::string(),
		unsigned int	width = 400,
		unsigned int	height = 300,
		const CDisplayWindowGUI_Params &	p = CDisplayWindowGUI_Params()
	)

Definition at line 20 of file CDisplayWindowGUI.cpp.

References mrpt::gui::default_mrpt_glfw_icon(), and images.

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~CDisplayWindowGUI()

CDisplayWindowGUI::~CDisplayWindowGUI ( )

overridevirtual

Definition at line 41 of file CDisplayWindowGUI.cpp.

CDisplayWindowGUI() [2/3]

mrpt::gui::CDisplayWindowGUI::CDisplayWindowGUI ( const CDisplayWindowGUI &  )

protecteddelete

CDisplayWindowGUI() [3/3]

mrpt::gui::CDisplayWindowGUI::CDisplayWindowGUI ( CDisplayWindowGUI &&  )

protecteddelete

Member Function Documentation

camera() [1/2]

CGlCanvasBase& mrpt::gui::CDisplayWindowGUI::camera ( )

inline

Definition at line 135 of file CDisplayWindowGUI.h.

References m_background_canvas.

camera() [2/2]

const CGlCanvasBase& mrpt::gui::CDisplayWindowGUI::camera ( ) const

inline

Definition at line 136 of file CDisplayWindowGUI.h.

References m_background_canvas.

Create()

template<typename... Args>

static Ptr mrpt::gui::CDisplayWindowGUI::Create ( Args &&...  args )

inlinestatic

Class factory returning a smart pointer.

Definition at line 88 of file CDisplayWindowGUI.h.

drawContents()

void CDisplayWindowGUI::drawContents ( )

overrideprotectedvirtual

Definition at line 47 of file CDisplayWindowGUI.cpp.

References background_scene, background_scene_mtx, mrpt::exception_to_str(), m_background_canvas, m_loopCallback, mrpt::opengl::CCamera::render(), THROW_EXCEPTION, and mrpt::gui::CGlCanvasBase::updateCameraParams().

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dropEvent()

bool CDisplayWindowGUI::dropEvent ( const std::vector< std::string > &  filenames )

overrideprotectedvirtual

Definition at line 121 of file CDisplayWindowGUI.cpp.

References m_dropFilesCallback.

dropFilesCallback()

const auto& mrpt::gui::CDisplayWindowGUI::dropFilesCallback ( ) const

inline

Definition at line 117 of file CDisplayWindowGUI.h.

References m_dropFilesCallback.

keyboardCallback()

const auto& mrpt::gui::CDisplayWindowGUI::keyboardCallback ( ) const

inline

Definition at line 125 of file CDisplayWindowGUI.h.

References m_keyboardCallback.

keyboardEvent()

bool CDisplayWindowGUI::keyboardEvent ( int  key, int  scancode, int  action, int  modifiers  )

overrideprotectedvirtual

Definition at line 129 of file CDisplayWindowGUI.cpp.

References m_keyboardCallback.

loopCallback()

const auto& mrpt::gui::CDisplayWindowGUI::loopCallback ( ) const

inline

Definition at line 108 of file CDisplayWindowGUI.h.

References m_loopCallback.

mouseButtonEvent()

bool CDisplayWindowGUI::mouseButtonEvent ( const nanogui::Vector2i &  p, int  button, bool  down, int  modifiers  )

overrideprotectedvirtual

Definition at line 94 of file CDisplayWindowGUI.cpp.

References m_background_canvas, and mrpt::gui::internal::NanoGUICanvasHeadless::mouseButtonEvent().

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mouseMotionEvent()

bool CDisplayWindowGUI::mouseMotionEvent ( const nanogui::Vector2i &  p, const nanogui::Vector2i &  rel, int  button, int  modifiers  )

overrideprotectedvirtual

Definition at line 103 of file CDisplayWindowGUI.cpp.

References m_background_canvas, and mrpt::gui::internal::NanoGUICanvasHeadless::mouseMotionEvent().

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nanogui_win()

nanogui::Window* mrpt::gui::CDisplayWindowGUI::nanogui_win ( )

inline

Definition at line 143 of file CDisplayWindowGUI.h.

References ASSERT_, and m_window.

operator=() [1/2]

CDisplayWindowGUI& mrpt::gui::CDisplayWindowGUI::operator= ( const CDisplayWindowGUI &  )

protecteddelete

operator=() [2/2]

CDisplayWindowGUI& mrpt::gui::CDisplayWindowGUI::operator= ( CDisplayWindowGUI &&  )

protecteddelete

resize()

void CDisplayWindowGUI::resize	(	unsigned int	width,
		unsigned int	height
	)

Resizes the window.

Definition at line 82 of file CDisplayWindowGUI.cpp.

scrollEvent()

bool CDisplayWindowGUI::scrollEvent ( const nanogui::Vector2i &  p, const nanogui::Vector2f &  rel  )

overrideprotectedvirtual

Definition at line 113 of file CDisplayWindowGUI.cpp.

References m_background_canvas, and mrpt::gui::internal::NanoGUICanvasHeadless::scrollEvent().

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setDropFilesCallback()

void mrpt::gui::CDisplayWindowGUI::setDropFilesCallback ( const std::function< bool(const std::vector< std::string > &)> &  callback )

inline

Sets a handle for file drop events.

Definition at line 111 of file CDisplayWindowGUI.h.

References m_dropFilesCallback.

setKeyboardCallback()

void mrpt::gui::CDisplayWindowGUI::setKeyboardCallback ( const std::function< bool(int, int, int, int)> &  callback )

inline

Definition at line 119 of file CDisplayWindowGUI.h.

References m_keyboardCallback.

setLoopCallback()

void mrpt::gui::CDisplayWindowGUI::setLoopCallback ( const std::function< void(void)> &  callback )

inline

Every time the window is about to be repainted, an optional callback can be called, if provided via this method.

Definition at line 104 of file CDisplayWindowGUI.h.

References m_loopCallback.

setPos()

void CDisplayWindowGUI::setPos	(	int	x,
		int	y
	)

Changes the position of the window on the screen.

Definition at line 87 of file CDisplayWindowGUI.cpp.

setWindowTitle()

void CDisplayWindowGUI::setWindowTitle

(

const std::string &

str

)

Changes the window title.

Definition at line 89 of file CDisplayWindowGUI.cpp.

Member Data Documentation

background_scene

mrpt::opengl::COpenGLScene::Ptr mrpt::gui::CDisplayWindowGUI::background_scene

Definition at line 132 of file CDisplayWindowGUI.h.

Referenced by drawContents().

background_scene_mtx

std::mutex mrpt::gui::CDisplayWindowGUI::background_scene_mtx

Definition at line 133 of file CDisplayWindowGUI.h.

Referenced by drawContents().

m_background_canvas

internal::NanoGUICanvasHeadless mrpt::gui::CDisplayWindowGUI::m_background_canvas

protected

Used to keep track of mouse events on the camera.

Definition at line 180 of file CDisplayWindowGUI.h.

Referenced by camera(), drawContents(), mouseButtonEvent(), mouseMotionEvent(), and scrollEvent().

m_dropFilesCallback

std::function<bool(const std::vector<std::string>& )> mrpt::gui::CDisplayWindowGUI::m_dropFilesCallback

protected

Definition at line 185 of file CDisplayWindowGUI.h.

Referenced by dropEvent(), dropFilesCallback(), and setDropFilesCallback().

m_keyboardCallback

std::function<bool( int , int , int , int )> mrpt::gui::CDisplayWindowGUI::m_keyboardCallback

protected

Definition at line 189 of file CDisplayWindowGUI.h.

Referenced by keyboardCallback(), keyboardEvent(), and setKeyboardCallback().

m_loopCallback

std::function<void(void)> mrpt::gui::CDisplayWindowGUI::m_loopCallback

protected

Definition at line 182 of file CDisplayWindowGUI.h.

Referenced by drawContents(), loopCallback(), and setLoopCallback().

m_window

nanogui::Window* mrpt::gui::CDisplayWindowGUI::m_window = nullptr

protected

the pointer is owned by the parent class Screen, no need to delete it

Definition at line 160 of file CDisplayWindowGUI.h.

Referenced by nanogui_win().