- sf
- Text
Graphical text that can be drawn to a render target. More...
#include <Text.hpp>
Inheritance diagram for sf::Text:
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 () | |
| Default constructor. More... | |
| Text (const String &string, const Font &font, unsigned int characterSize=30) | |
| Construct the text from a string, font and size. More... | |
| void | setString (const String &string) |
| Set the text's string. More... | |
| void | setFont (const Font &font) |
| Set the text's font. More... | |
| void | setCharacterSize (unsigned int size) |
| Set the character size. More... | |
| void | setStyle (Uint32 style) |
| Set the text's style. More... | |
| void | setColor (const Color &color) |
| Set the global color of the text. More... | |
| const String & | getString () const |
| Get the text's string. More... | |
| const Font * | getFont () const |
| Get the text's font. More... | |
| unsigned int | getCharacterSize () const |
| Get the character size. More... | |
| Uint32 | getStyle () const |
| Get the text's style. More... | |
| const Color & | getColor () const |
| Get the global color of the text. More... | |
| Vector2f | findCharacterPos (std::size_t index) const |
| Return the position of the index-th character. More... | |
| FloatRect | getLocalBounds () const |
| Get the local bounding rectangle of the entity. More... | |
| FloatRect | getGlobalBounds () const |
| Get the global bounding rectangle of the entity. More... | |
| void | setPosition (float x, float y) |
| set the position of the object More... | |
| void | setPosition (const Vector2f &position) |
| set the position of the object More... | |
| void | setRotation (float angle) |
| set the orientation of the object More... | |
| void | setScale (float factorX, float factorY) |
| set the scale factors of the object More... | |
| void | setScale (const Vector2f &factors) |
| set the scale factors of the object More... | |
| void | setOrigin (float x, float y) |
| set the local origin of the object More... | |
| void | setOrigin (const Vector2f &origin) |
| set the local origin of the object More... | |
| const Vector2f & | getPosition () const |
| get the position of the object More... | |
| float | getRotation () const |
| get the orientation of the object More... | |
| const Vector2f & | getScale () const |
| get the current scale of the object More... | |
| const Vector2f & | getOrigin () const |
| get the local origin of the object More... | |
| void | move (float offsetX, float offsetY) |
| Move the object by a given offset. More... | |
| void | move (const Vector2f &offset) |
| Move the object by a given offset. More... | |
| void | rotate (float angle) |
| Rotate the object. More... | |
| void | scale (float factorX, float factorY) |
| Scale the object. More... | |
| void | scale (const Vector2f &factor) |
| Scale the object. More... | |
| const Transform & | getTransform () const |
| get the combined transform of the object More... | |
| const Transform & | getInverseTransform () const |
| get the inverse of the combined transform of the object More... | |
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, strike through), the global color 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:
// Declare and load a font
sf::Font font;
font.loadFromFile("arial.ttf");
// Create a text
sf::Text text("hello", font);
text.setCharacterSize(30);
text.setStyle(sf::Text::Bold);
text.setColor(sf::Color::Red);
// Draw it
window.draw(text);
- See also
- sf::Font, sf::Transformable
Member Enumeration Documentation
| enum sf::Text::Style |
Constructor & Destructor Documentation
| sf::Text::Text | ( | ) |
Default constructor.
Creates an empty text.
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.
Member Function Documentation
| Vector2f sf::Text::findCharacterPos | ( | std::size_t | index | ) | const |
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
| unsigned int sf::Text::getCharacterSize | ( | ) | const |
| const Color& sf::Text::getColor | ( | ) | const |
| const Font* sf::Text::getFont | ( | ) | const |
Get the text's font.
If the text has no font attached, a NULL pointer is returned. The returned pointer is const, which means that you cannot modify the font when you get it from this function.
- Returns
- Pointer to the text's font
- See also
- setFont
| FloatRect sf::Text::getGlobalBounds | ( | ) | const |
Get the global bounding rectangle of the entity.
The returned rectangle is in global coordinates, which means that it takes in account the transformations (translation, rotation, scale, ...) that are applied to the entity. In other words, this function returns the bounds of the sprite in the global 2D world's coordinate system.
- Returns
- Global bounding rectangle of the entity
|
inherited |
get the inverse of the combined transform of the object
- Returns
- Inverse of the combined transformations applied to the object
- See also
- getTransform
| FloatRect sf::Text::getLocalBounds | ( | ) | const |
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
|
inherited |
|
inherited |
|
inherited |
get the orientation of the object
The rotation is always in the range [0, 360].
- Returns
- Current rotation, in degrees
- See also
- setRotation
|
inherited |
| const String& sf::Text::getString | ( | ) | const |
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:
sf::String s1 = text.getString();
std::string s2 = text.getString();
std::wstring s3 = text.getString();
- Returns
- Text's string
- See also
- setString
|
inherited |
get the combined transform of the object
- Returns
- Transform combining the position/rotation/scale/origin of the object
- See also
- getInverseTransform
|
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:
sf::Vector2f pos = object.getPosition();
- Parameters
-
offsetX X offset offsetY Y offset
- See also
- setPosition
|
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
|
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, in degrees
|
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:
sf::Vector2f scale = object.getScale();
- Parameters
-
factorX Horizontal scale factor factorY Vertical scale factor
- See also
- setScale
|
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:
sf::Vector2f scale = object.getScale();
- Parameters
-
factor Scale factors
- See also
- setScale
| 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
| void sf::Text::setColor | ( | const Color & | color | ) |
Set the global color of the text.
By default, the text's color is opaque white.
- Parameters
-
color New color of the text
- See also
- getColor
| 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
|
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
-
x X coordinate of the new origin y Y coordinate of the new origin
- See also
- getOrigin
|
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
|
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
-
x X coordinate of the new position y Y coordinate of the new position
- See also
- move, getPosition
|
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
|
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, in degrees
- See also
- rotate, getRotation
|
inherited |
set the scale factors of the object
This function completely overwrites the previous scale. See the scale function to add a factor based on the previous scale instead. The default scale of a transformable object is (1, 1).
- Parameters
-
factorX New horizontal scale factor factorY New vertical scale factor
|
inherited |
| 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:
text.setString("hello");
text.setString(L"hello");
text.setString(std::string("hello"));
text.setString(std::wstring(L"hello"));
A text's string is empty by default.
- Parameters
-
string New string
- See also
- getString
| void sf::Text::setStyle | ( | Uint32 | 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: