Reimplement a QGraphicsView for Stellarium. More...

#include <StelMainView.hpp>

Data Structures
struct	GLInfo
	Contains some basic info about the OpenGL context used. More...

Public Slots
void	setFullScreen (bool)
	Set whether fullscreen is activated or not.

void	focusSky ()
	Return focus to the sky item. To be used when we close a dialog.

void	saveScreenShot (const QString &filePrefix="stellarium-", const QString &saveDir="", const bool overwrite=false)
	Save a screen shot. More...

void	setScreenshotFormat (const QString filetype)

QString	getScreenshotFormat () const

bool	getFlagInvertScreenShotColors () const
	Get whether colors are inverted when saving screenshot.

void	setFlagInvertScreenShotColors (bool b)
	Set whether colors should be inverted when saving screenshot.

bool	getFlagScreenshotDateFileName () const
	Get whether date and time should be used for screenshot naming.

void	setFlagScreenshotDateFileName (bool b)
	Set whether date and time should be used for screenshot naming.

void	setScreenshotFileMask (const QString filemask)

QString	getScreenshotFileMask () const

bool	getFlagOverwriteScreenShots () const
	Get whether existing files are overwritten when saving screenshot.

void	setFlagOverwriteScreenShots (bool b)
	Set whether existing files are overwritten when saving screenshot.

bool	getFlagUseCustomScreenshotSize () const
	Get whether custom size should be used for screenshots.

void	setFlagUseCustomScreenshotSize (bool b)
	Set whether custom size should be used for screenshots.

int	getCustomScreenshotWidth () const
	Get custom screenshot width.

void	setCustomScreenshotWidth (int width)
	Set custom width for screenshots.

int	getCustomScreenshotHeight () const
	Get custom screenshot height.

void	setCustomScreenshotHeight (int height)
	Set custom height for screenshots.

int	getScreenshotDpi () const
	Get screenshot DPI. This is only an entry in the screenshot image metadata. The raster content is not influenced.

void	setScreenshotDpi (int dpi)
	Set screenshot DPI. This is only an entry in the screenshot image metadata. The raster content is not influenced.

float	getCustomScreenshotMagnification () const
	Get screenshot magnification. More...

bool	getFlagCursorTimeout () const
	Get the state of the mouse cursor timeout flag.

void	setFlagCursorTimeout (bool b)
	Set the state of the mouse cursor timeout flag.

double	getCursorTimeout () const
	Get the mouse cursor timeout in seconds.

void	setCursorTimeout (double t)
	Set the mouse cursor timeout in seconds.

void	setMinFps (float m)
	Set the minimum frames per second. More...

float	getMinFps () const
	Get the current minimum frames per second.

void	setMaxFps (float m)
	Set the maximum frames per second. More...

float	getMaxFps () const
	Get the current maximum frames per second.

void	setMinTimeBetweenFrames (int m)
	Set the minimum time between frames (in milliseconds). More...

int	getMinTimeBetweenFrames () const
	Get the current minimum time between frames.

void	thereWasAnEvent ()
	Notify that an event was handled by the program and therefore the FPS should be maximized for a couple of seconds.

bool	needsMaxFPS () const
	Determines if we should render as fast as possible, or limit the FPS. More...

void	setSkyBackgroundColor (Vec3f color)
	Set the sky background color. (Actually forwards to the StelRootItem.) Everything else than black creates a work of art!

Vec3f	getSkyBackgroundColor () const
	Get the sky background color. (Actually retrieves from the StelRootItem.) Everything else than black creates a work of art!

Signals
void	sizeChanged (const QSize &sz)
	emitted when window size has changed

void	screenshotRequested (void)
	emitted when saveScreenShot is requested with saveScreenShot(). More...

void	fullScreenChanged (bool b)

void	reloadShadersRequested ()
	Emitted when the "Reload shaders" action is performed Interested objects should subscribe to this signal and reload their shaders when this is emitted.

void	updateIconsRequested ()

void	flagInvertScreenShotColorsChanged (bool b)

void	flagOverwriteScreenshotsChanged (bool b)

void	flagUseCustomScreenshotSizeChanged (bool use)

void	flagScreenshotDateFileNameChanged (bool flag)

void	customScreenshotWidthChanged (int width)

void	customScreenshotHeightChanged (int height)

void	screenshotDpiChanged (int dpi)

void	screenshotFormatChanged (QString format)

void	screenshotFileMaskChanged (QString format)

void	skyBackgroundColorChanged (Vec3f color)

void	flagCursorTimeoutChanged (bool b)

void	cursorTimeoutChanged (double t)

void	minFpsChanged (int fps)

void	maxFpsChanged (int fps)

void	minTimeBetweenFramesChanged (int tbf)

Public Member Functions
	StelMainView (QSettings *settings)

void	init ()
	Start the main initialization of Stellarium.

void	deinit ()

void	initTitleI18n ()
	Set the application title for the current language. More...

void	deinitGL ()
	Delete openGL textures (to call before the GLContext disappears)

QGraphicsWidget *	getGuiWidget () const
	Return the parent gui widget, this should be used as parent to all the StelDialog instances.

QPoint	getMousePos () const
	Return mouse position coordinates.

QOpenGLContext *	glContext () const
	Returns the main application OpenGL context, which should be used for all drawing Stellarium does. More...

void	glContextMakeCurrent ()
	Make the main GL context (the one returned from glContext()) current on the main view surface.

void	glContextDoneCurrent ()
	Releases the main GL context.

const GLInfo &	getGLInformation () const
	Returns the information about the GL context, this does not require the context to be active.

QRectF	setWindowSize (int width, int height)
	Set image size in windowed mode. More...

Static Public Member Functions
static StelMainView &	getInstance ()
	Get the StelMainView singleton instance.

static QSurfaceFormat	getDesiredGLFormat (QSettings *configuration)
	Returns the desired OpenGL format settings.

Protected Member Functions
void	moveEvent (QMoveEvent *event) override
	Hack to determine current monitor pixel ratio. More...

void	closeEvent (QCloseEvent *event) override
	Handle window closed event, calling StelApp::quit()

void	resizeEvent (QResizeEvent *event) override
	Handle window resized events, and change the size of the underlying QGraphicsScene to be the same.

void	mouseMoveEvent (QMouseEvent *event) override
	Wake up mouse cursor (if it was hidden)

bool	eventFilter (QObject obj, QEvent event) override

Properties
bool	fullScreen

bool	flagInvertScreenShotColors

bool	flagScreenshotDateFileName

QString	screenShotFileMask
	file type like "png" or "jpg".

bool	flagOverwriteScreenshots
	if set to true, screenshot is named by date and time format

bool	flagUseCustomScreenshotSize
	if set to true, screenshot is named exactly screenShotPrefix.png and overwrites existing file

int	customScreenshotWidth
	if true, the next 2 values are observed for screenshots.

int	customScreenshotHeight
	used when flagCustomResolutionScreenshots==true

int	screenshotDpi
	used when flagCustomResolutionScreenshots==true

QString	screenShotFormat

bool	flagCursorTimeout

double	cursorTimeout

Vec3f	skyBackgroundColor

int	minFps

int	maxFps

int	minTimeBetweenFrames
	The minimum desired time between frames, in milliseconds.

Friends
class	StelGuiItem

class	StelRootItem

class	StelGraphicsScene

class	NightModeGraphicsEffect

Detailed Description

Reimplement a QGraphicsView for Stellarium.

It is the class creating the singleton GL Widget, the main StelApp instance as well as the main GUI.

Data Structure Documentation

◆ StelMainView::GLInfo

struct StelMainView::GLInfo

Contains some basic info about the OpenGL context used.

Data Fields
QOpenGLFunctions *	functions
PFNGLMINSAMPLESHADINGPROC	glMinSampleShading
bool	isCoreProfile
bool	isGLES
bool	isHighGraphicsMode
QOpenGLContext *	mainContext
GLint	maxAnisotropy
GLint	maxTextureSize
QString	renderer
bool	supportsLuminanceTextures
QSurface *	surface
QString	vendor

Member Function Documentation

◆ getCustomScreenshotMagnification

float StelMainView::getCustomScreenshotMagnification ( ) const

inlineslot

Get screenshot magnification.

This should be used by StarMgr, text drawing and other elements which may want to enlarge their output in screenshots to keep them visible.

◆ glContext()

QOpenGLContext* StelMainView::glContext ( ) const

Returns the main application OpenGL context, which should be used for all drawing Stellarium does.

See also: glContextMakeCurrent(); glContextDoneCurrent()

◆ initTitleI18n()

void StelMainView::initTitleI18n ( )

Set the application title for the current language.

This is useful for e.g. chinese.

◆ moveEvent()

void StelMainView::moveEvent ( QMoveEvent * event )

overrideprotected

Hack to determine current monitor pixel ratio.

◆ needsMaxFPS

bool StelMainView::needsMaxFPS ( ) const

slot

Determines if we should render as fast as possible, or limit the FPS.

This depends on the time the last user event happened.

◆ saveScreenShot

void StelMainView::saveScreenShot	(	const QString &	filePrefix = `"stellarium-"`,
		const QString &	saveDir = `""`,
		const bool	overwrite = `false`
	)

slot

Save a screen shot.

The format of the file, and hence the filename extension depends on the architecture and build type.

filePrefix changes the beginning of the file name
saveDir changes the directory where the screenshot is saved If saveDir is "" then StelFileMgr::getScreenshotDir() will be used
overwrite if true,
filePrefix is used as filename, and existing file will be overwritten.
Note
To set file type, use setScreenshotFormat() first.

◆ screenshotRequested

void StelMainView::screenshotRequested ( void )

signal

emitted when saveScreenShot is requested with saveScreenShot().

doScreenshot() does the actual work (it has to do it in the main thread, where as saveScreenShot() might get called from another one.

Remarks: FS: is threaded access here even a possibility anymore, or a remnant of older code?

◆ setMaxFps

void StelMainView::setMaxFps ( float m )

inlineslot

Set the maximum frames per second.

Parameters

m	the new maximum fps setting.

◆ setMinFps

void StelMainView::setMinFps ( float m )

inlineslot

Set the minimum frames per second.

Usually this minimum will be switched to after there are no user events for some seconds to save power. However, if can be useful to set this to a high value to improve playing smoothness in scripts.

Parameters

m	the new minimum fps setting.

◆ setMinTimeBetweenFrames

void StelMainView::setMinTimeBetweenFrames ( int m )

inlineslot

Set the minimum time between frames (in milliseconds).

Parameters

m	the new setting.

◆ setScreenshotFormat

void StelMainView::setScreenshotFormat ( const QString filetype )

slot

filetype is the preferred file type (ending) like "png", "jpg", "bmp" etc. The supported filetypes depend on the underlying Qt version. The most popular may be PNG, JPG/JPEG, BMP, TIF (LZW compressed), TIFF (uncompressed), WEBP, but as of Qt5.12, we also have ICO (for thumbnails), PBM (Portable Bitmap), PGM (Portable Graymap), PPM (Portable Pixmap), XBM (X Bitmap) and XPM (X Pixmap).

◆ setWindowSize()

QRectF StelMainView::setWindowSize	(	int	width,
		int	height
	)

Set image size in windowed mode.

Leaves fullScreen if necessary. This is required for externally accessing Stellarium from other programs, do not delete!

Data Structures

Public Slots

Signals

Public Member Functions

Static Public Member Functions

Protected Member Functions

Properties

Friends

Detailed Description

Data Structure Documentation

◆ StelMainView::GLInfo

Member Function Documentation

◆ getCustomScreenshotMagnification

◆ glContext()

◆ initTitleI18n()

◆ moveEvent()

◆ needsMaxFPS

◆ saveScreenShot

◆ screenshotRequested

◆ setMaxFps

◆ setMinFps

◆ setMinTimeBetweenFrames

◆ setScreenshotFormat

◆ setWindowSize()