Graphical text that can be drawn to a render target. More...
#include <SFML/Graphics/Text.hpp>
Public Types | |
enum | Style { Regular = 0 , Bold = 1 << 0 , Italic = 1 << 1 , Underlined = 1 << 2 , StrikeThrough = 1 << 3 } |
Enumeration of the string drawing styles. More... | |
Public Member Functions | |
Text (const Font &font, String string="", unsigned int characterSize=30) | |
Construct the text from a string, font and size. | |
Text (const Font &&font, String string="", unsigned int characterSize=30)=delete | |
Disallow construction from a temporary font. | |
void | setString (const String &string) |
Set the text's string. | |
void | setFont (const Font &font) |
Set the text's font. | |
void | setFont (const Font &&font)=delete |
Disallow setting from a temporary font. | |
void | setCharacterSize (unsigned int size) |
Set the character size. | |
void | setLineSpacing (float spacingFactor) |
Set the line spacing factor. | |
void | setLetterSpacing (float spacingFactor) |
Set the letter spacing factor. | |
void | setStyle (std::uint32_t style) |
Set the text's style. | |
void | setFillColor (Color color) |
Set the fill color of the text. | |
void | setOutlineColor (Color color) |
Set the outline color of the text. | |
void | setOutlineThickness (float thickness) |
Set the thickness of the text's outline. | |
const String & | getString () const |
Get the text's string. | |
const Font & | getFont () const |
Get the text's font. | |
unsigned int | getCharacterSize () const |
Get the character size. | |
float | getLetterSpacing () const |
Get the size of the letter spacing factor. | |
float | getLineSpacing () const |
Get the size of the line spacing factor. | |
std::uint32_t | getStyle () const |
Get the text's style. | |
Color | getFillColor () const |
Get the fill color of the text. | |
Color | getOutlineColor () const |
Get the outline color of the text. | |
float | getOutlineThickness () const |
Get the outline thickness of the text. | |
Vector2f | findCharacterPos (std::size_t index) const |
Return the position of the index -th character. | |
FloatRect | getLocalBounds () const |
Get the local bounding rectangle of the entity. | |
FloatRect | getGlobalBounds () const |
Get the global bounding rectangle of the entity. | |
void | setPosition (Vector2f position) |
set the position of the object | |
void | setRotation (Angle angle) |
set the orientation of the object | |
void | setScale (Vector2f factors) |
set the scale factors of the object | |
void | setOrigin (Vector2f origin) |
set the local origin of the object | |
Vector2f | getPosition () const |
get the position of the object | |
Angle | getRotation () const |
get the orientation of the object | |
Vector2f | getScale () const |
get the current scale of the object | |
Vector2f | getOrigin () const |
get the local origin of the object | |
void | move (Vector2f offset) |
Move the object by a given offset. | |
void | rotate (Angle angle) |
Rotate the object. | |
void | scale (Vector2f factor) |
Scale the object. | |
const Transform & | getTransform () const |
get the combined transform of the object | |
const Transform & | getInverseTransform () const |
get the inverse of the combined transform of the object | |
Detailed Description
Graphical text that can be drawn to a render target.
sf::Text
is a drawable class that allows to easily display some text with custom style and color on a render target.
It inherits all the functions from sf::Transformable
: position, rotation, scale, origin. It also adds text-specific properties such as the font to use, the character size, the font style (bold, italic, underlined and strike through), the text color, the outline thickness, the outline color, the character spacing, the line spacing and the text to display of course. It also provides convenience functions to calculate the graphical size of the text, or to get the global position of a given character.
sf::Text
works in combination with the sf::Font
class, which loads and provides the glyphs (visual characters) of a given font.
The separation of sf::Font
and sf::Text
allows more flexibility and better performances: indeed a sf::Font
is a heavy resource, and any operation on it is slow (often too slow for real-time applications). On the other side, a sf::Text
is a lightweight object which can combine the glyphs data and metrics of a sf::Font
to display any text on a render target.
It is important to note that the sf::Text
instance doesn't copy the font that it uses, it only keeps a reference to it. Thus, a sf::Font
must not be destructed while it is used by a sf::Text
(i.e. never write a function that uses a local sf::Font
instance for creating a text).
See also the note on coordinates and undistorted rendering in sf::Transformable
.
Usage example:
- See also
sf::Font
,sf::Transformable
Member Enumeration Documentation
◆ Style
enum sf::Text::Style |
Constructor & Destructor Documentation
◆ Text() [1/2]
Construct the text from a string, font and size.
Note that if the used font is a bitmap font, it is not scalable, thus not all requested sizes will be available to use. This needs to be taken into consideration when setting the character size. If you need to display text of a certain size, make sure the corresponding bitmap font that supports that size is used.
◆ Text() [2/2]
Disallow construction from a temporary font.
Member Function Documentation
◆ findCharacterPos()
|
nodiscard |
Return the position of the index
-th character.
This function computes the visual position of a character from its index in the string. The returned position is in global coordinates (translation, rotation, scale and origin are applied). If index
is out of range, the position of the end of the string is returned.
- Parameters
-
index Index of the character
- Returns
- Position of the character
◆ getCharacterSize()
|
nodiscard |
◆ getFillColor()
|
nodiscard |
◆ getFont()
|
nodiscard |
Get the text's font.
The returned reference is const, which means that you cannot modify the font when you get it from this function.
- Returns
- Reference to the text's font
- See also
setFont
◆ getGlobalBounds()
|
nodiscard |
Get the global bounding rectangle of the entity.
The returned rectangle is in global coordinates, which means that it takes into account the transformations (translation, rotation, scale, ...) that are applied to the entity. In other words, this function returns the bounds of the text in the global 2D world's coordinate system.
- Returns
- Global bounding rectangle of the entity
◆ getInverseTransform()
|
nodiscardinherited |
get the inverse of the combined transform of the object
- Returns
- Inverse of the combined transformations applied to the object
- See also
getTransform
◆ getLetterSpacing()
|
nodiscard |
Get the size of the letter spacing factor.
- Returns
- Size of the letter spacing factor
- See also
setLetterSpacing
◆ getLineSpacing()
|
nodiscard |
Get the size of the line spacing factor.
- Returns
- Size of the line spacing factor
- See also
setLineSpacing
◆ getLocalBounds()
|
nodiscard |
Get the local bounding rectangle of the entity.
The returned rectangle is in local coordinates, which means that it ignores the transformations (translation, rotation, scale, ...) that are applied to the entity. In other words, this function returns the bounds of the entity in the entity's coordinate system.
- Returns
- Local bounding rectangle of the entity
◆ getOrigin()
|
nodiscardinherited |
◆ getOutlineColor()
|
nodiscard |
◆ getOutlineThickness()
|
nodiscard |
Get the outline thickness of the text.
- Returns
- Outline thickness of the text, in pixels
- See also
setOutlineThickness
◆ getPosition()
|
nodiscardinherited |
◆ getRotation()
|
nodiscardinherited |
get the orientation of the object
The rotation is always in the range [0, 360].
- Returns
- Current rotation
- See also
setRotation
◆ getScale()
|
nodiscardinherited |
◆ getString()
|
nodiscard |
Get the text's string.
The returned string is a sf::String
, which can automatically be converted to standard string types. So, the following lines of code are all valid:
- Returns
- Text's string
- See also
setString
◆ getStyle()
|
nodiscard |
◆ getTransform()
|
nodiscardinherited |
get the combined transform of the object
- Returns
- Transform combining the position/rotation/scale/origin of the object
- See also
getInverseTransform
◆ move()
|
inherited |
Move the object by a given offset.
This function adds to the current position of the object, unlike setPosition
which overwrites it. Thus, it is equivalent to the following code:
- Parameters
-
offset Offset
- See also
setPosition
◆ rotate()
|
inherited |
Rotate the object.
This function adds to the current rotation of the object, unlike setRotation
which overwrites it. Thus, it is equivalent to the following code:
- Parameters
-
angle Angle of rotation
◆ scale()
|
inherited |
Scale the object.
This function multiplies the current scale of the object, unlike setScale
which overwrites it. Thus, it is equivalent to the following code:
- Parameters
-
factor Scale factors
- See also
setScale
◆ setCharacterSize()
void sf::Text::setCharacterSize | ( | unsigned int | size | ) |
Set the character size.
The default size is 30.
Note that if the used font is a bitmap font, it is not scalable, thus not all requested sizes will be available to use. This needs to be taken into consideration when setting the character size. If you need to display text of a certain size, make sure the corresponding bitmap font that supports that size is used.
- Parameters
-
size New character size, in pixels
- See also
getCharacterSize
◆ setFillColor()
void sf::Text::setFillColor | ( | Color | color | ) |
Set the fill color of the text.
By default, the text's fill color is opaque white. Setting the fill color to a transparent color with an outline will cause the outline to be displayed in the fill area of the text.
- Parameters
-
color New fill color of the text
- See also
getFillColor
◆ setFont() [1/2]
|
delete |
Disallow setting from a temporary font.
◆ setFont() [2/2]
void sf::Text::setFont | ( | const Font & | font | ) |
Set the text's font.
The font
argument refers to a font that must exist as long as the text uses it. Indeed, the text doesn't store its own copy of the font, but rather keeps a pointer to the one that you passed to this function. If the font is destroyed and the text tries to use it, the behavior is undefined.
- Parameters
-
font New font
- See also
getFont
◆ setLetterSpacing()
void sf::Text::setLetterSpacing | ( | float | spacingFactor | ) |
Set the letter spacing factor.
The default spacing between letters is defined by the font. This factor doesn't directly apply to the existing spacing between each character, it rather adds a fixed space between them which is calculated from the font metrics and the character size. Note that factors below 1 (including negative numbers) bring characters closer to each other. By default the letter spacing factor is 1.
- Parameters
-
spacingFactor New letter spacing factor
- See also
getLetterSpacing
◆ setLineSpacing()
void sf::Text::setLineSpacing | ( | float | spacingFactor | ) |
Set the line spacing factor.
The default spacing between lines is defined by the font. This method enables you to set a factor for the spacing between lines. By default the line spacing factor is 1.
- Parameters
-
spacingFactor New line spacing factor
- See also
getLineSpacing
◆ setOrigin()
|
inherited |
set the local origin of the object
The origin of an object defines the center point for all transformations (position, scale, rotation). The coordinates of this point must be relative to the top-left corner of the object, and ignore all transformations (position, scale, rotation). The default origin of a transformable object is (0, 0).
- Parameters
-
origin New origin
- See also
getOrigin
◆ setOutlineColor()
void sf::Text::setOutlineColor | ( | Color | color | ) |
Set the outline color of the text.
By default, the text's outline color is opaque black.
- Parameters
-
color New outline color of the text
- See also
getOutlineColor
◆ setOutlineThickness()
void sf::Text::setOutlineThickness | ( | float | thickness | ) |
Set the thickness of the text's outline.
By default, the outline thickness is 0.
Be aware that using a negative value for the outline thickness will cause distorted rendering.
- Parameters
-
thickness New outline thickness, in pixels
- See also
getOutlineThickness
◆ setPosition()
|
inherited |
set the position of the object
This function completely overwrites the previous position. See the move function to apply an offset based on the previous position instead. The default position of a transformable object is (0, 0).
- Parameters
-
position New position
- See also
move
,getPosition
◆ setRotation()
|
inherited |
set the orientation of the object
This function completely overwrites the previous rotation. See the rotate function to add an angle based on the previous rotation instead. The default rotation of a transformable object is 0.
- Parameters
-
angle New rotation
- See also
rotate
,getRotation
◆ setScale()
|
inherited |
◆ setString()
void sf::Text::setString | ( | const String & | string | ) |
Set the text's string.
The string
argument is a sf::String
, which can automatically be constructed from standard string types. So, the following calls are all valid:
A text's string is empty by default.
- Parameters
-
string New string
- See also
getString
◆ setStyle()
void sf::Text::setStyle | ( | std::uint32_t | style | ) |
Set the text's style.
You can pass a combination of one or more styles, for example sf::Text::Bold | sf::Text::Italic
. The default style is sf::Text::Regular
.
- Parameters
-
style New style
- See also
getStyle
The documentation for this class was generated from the following file: