Qwt3D::Label类 参考

A Qt string or an output device dependent string 更多...

#include <qwt3d_label.h>

类 Qwt3D::Label 继承关系图:

类
class	PrivateData

Public 成员函数
	Label (const Label &other)
	Default constructor
	Label (Label &&other) noexcept
Label &	operator= (const Label &other)
	Copy assignment operator
Label &	operator= (Label &&other) noexcept
	Move assignment operator
	Label (const QString &family, int pointSize, int weight=QFont::Normal, bool italic=false)
void	setFont (QString const &family, int pointSize, int weight=QFont::Normal, bool italic=false)
	Sets the label font
void	adjust (int gap)
	Adds an additional shift to the anchor point
double	gap () const
void	setPosition (Qwt3D::Triple pos, ANCHOR a=BottomLeft)
	Sets the label position and anchor point
void	setRelPosition (Tuple rpos, ANCHOR a)
	Sets the label position relative to the viewport
Qwt3D::Triple	first () const
Qwt3D::Triple	second () const
ANCHOR	anchor () const
virtual void	setColor (double r, double g, double b, double a=1) override
	Sets the label color from RGBA components
virtual void	setColor (Qwt3D::RGBA rgba) override
	Sets the label color from an RGBA object
void	setString (QString const &s)
	Sets the label text string
virtual void	draw () override
	Draws the label
Public 成员函数 继承自 Qwt3D::Drawable
virtual void	saveGLState ()
virtual void	restoreGLState ()
void	attach (Drawable *)
void	detach (Drawable *)
void	detachAll ()
Qwt3D::Triple	relativePosition (Qwt3D::Triple rel)
	Calculates world coordinates from relative viewport position

静态 Public 成员函数
static void	useDeviceFonts (bool val)
	Enables or disables device font rendering for all labels

额外继承的成员函数
Protected 成员函数 继承自 Qwt3D::Drawable
void	Enable (GLenum what, GLboolean val)
Qwt3D::Triple	ViewPort2World (Qwt3D::Triple win, bool *err=nullptr)
	Converts viewport coordinates to world coordinates (glUnProject)
Qwt3D::Triple	World2ViewPort (Qwt3D::Triple obj, bool *err=nullptr)
	Converts world coordinates to viewport coordinates (glProject)
	Drawable (Drawable &&other) noexcept
Drawable &	operator= (Drawable &&other) noexcept
Protected 属性 继承自 Qwt3D::Drawable
Qwt3D::RGBA	color
GLdouble	modelMatrix [16]
GLdouble	projMatrix [16]
GLint	viewport [4]

详细描述

A Qt string or an output device dependent string

Label provides text rendering on 3D plots, supporting both Qt string representation and device-dependent string output.

构造及析构函数说明

Label()

Label::Label

(

const Label &

other

)

Default constructor

Constructs a Label with specified font parameters

参数

family	Font family name
pointSize	Font point size
weight	Font weight
italic	Whether font is italic

Destructor

Copy constructor

Move constructor

成员函数说明

adjust()

void Label::adjust

(

int

gap

)

Adds an additional shift to the anchor point

参数

gap	Gap value in pixels

The shift direction depends on the anchor type: left aligned -->, right aligned <–, top aligned top-down, bottom aligned bottom-up. The unit is user space dependent (one pixel on screen - play around to get satisfying results).

draw()

void Label::draw ( )

overridevirtual

Draws the label

重载 Qwt3D::Drawable .

setColor() [1/2]

void Label::setColor ( double  r, double  g, double  b, double  a = 1  )

overridevirtual

Sets the label color from RGBA components

参数

r	Red component
g	Green component
b	Blue component
a	Alpha component

重载 Qwt3D::Drawable .

setColor() [2/2]

void Label::setColor ( Qwt3D::RGBA  rgba )

overridevirtual

Sets the label color from an RGBA object

参数

rgba	RGBA color value

重载 Qwt3D::Drawable .

setFont()

void Label::setFont	(	QString const &	family,
		int	pointSize,
		int	weight = QFont::Normal,
		bool	italic = false
	)

Sets the label font

参数

family	Font family name
pointSize	Font point size
weight	Font weight
italic	Whether font is italic

setPosition()

void Label::setPosition	(	Qwt3D::Triple	pos,
		ANCHOR	a = BottomLeft
	)

Sets the label position and anchor point

参数

pos	Position triple in world coordinates
a	Anchor type defining how the label aligns relative to pos

Anchor example: TopCenter (*) resp. BottomRight (X): +-—*-—+ | Pixmap | +------—X

setRelPosition()

void Label::setRelPosition	(	Tuple	rpos,
		ANCHOR	a
	)

Sets the label position relative to the viewport

参数

rpos	Relative position tuple (x,y)
a	Anchor type defining how the label aligns

setString()

void Label::setString

(

QString const &

s

)

Sets the label text string

参数

s	Text string to display

useDeviceFonts()

void Label::useDeviceFonts ( bool  val )

static

Enables or disables device font rendering for all labels

参数

val	True to use device fonts, false to use Qt-based rendering

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该类的文档由以下文件生成:

• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_label.h
• /home/runner/work/QWT/QWT/src/plot3d/qwt3d_label.cpp