Struct qt_gui::q_font::StyleStrategy

#[repr(transparent)]
pub struct StyleStrategy(_);

The style strategy tells the font matching algorithm what type of fonts should be used to find an appropriate default family.

C++ enum: QFont::StyleStrategy.

C++ documentation:

The style strategy tells the font matching algorithm what type of fonts should be used to find an appropriate default family.

The following strategies are available:

Any of these may be OR-ed with one of these flags:

Methods

impl StyleStrategy

pub fn to_int(&self) -> c_int

impl StyleStrategy

pub const PreferDefault: StyleStrategy

the default style strategy. It does not prefer any type of font. (C++ enum variant: PreferDefault = 1)

pub const PreferBitmap: StyleStrategy

prefers bitmap fonts (as opposed to outline fonts). (C++ enum variant: PreferBitmap = 2)

pub const PreferDevice: StyleStrategy

prefers device fonts. (C++ enum variant: PreferDevice = 4)

pub const PreferOutline: StyleStrategy

prefers outline fonts (as opposed to bitmap fonts). (C++ enum variant: PreferOutline = 8)

pub const ForceOutline: StyleStrategy

forces the use of outline fonts. (C++ enum variant: ForceOutline = 16)

pub const PreferMatch: StyleStrategy

prefer an exact match. The font matcher will try to use the exact font size that has been specified. (C++ enum variant: PreferMatch = 32)

pub const PreferQuality: StyleStrategy

prefer the best quality font. The font matcher will use the nearest standard point size that the font supports. (C++ enum variant: PreferQuality = 64)

pub const PreferAntialias: StyleStrategy

antialias if possible. (C++ enum variant: PreferAntialias = 128)

pub const NoAntialias: StyleStrategy

don't antialias the fonts. (C++ enum variant: NoAntialias = 256)

pub const OpenGLCompatible: StyleStrategy

forces the use of OpenGL compatible fonts. (C++ enum variant: OpenGLCompatible = 512)

pub const ForceIntegerMetrics: StyleStrategy

forces the use of integer values in font engines that support fractional font metrics. (C++ enum variant: ForceIntegerMetrics = 1024)

pub const NoSubpixelAntialias: StyleStrategy

avoid subpixel antialiasing on the fonts if possible. (C++ enum variant: NoSubpixelAntialias = 2048)

pub const NoFontMerging: StyleStrategy

If the font selected for a certain writing system does not contain a character requested to draw, then Qt automatically chooses a similar looking font that contains the character. The NoFontMerging flag disables this feature. Please note that enabling this flag will not prevent Qt from automatically picking a suitable font when the selected font does not support the writing system of the text. (C++ enum variant: NoFontMerging = 32768)

pub const PreferNoShaping: StyleStrategy

Sometimes, a font will apply complex rules to a set of characters in order to display them correctly. In some writing systems, such as Brahmic scripts, this is required in order for the text to be legible, but in e.g. Latin script, it is merely a cosmetic feature. The PreferNoShaping flag will disable all such features when they are not required, which will improve performance in most cases (since Qt 5.10). (C++ enum variant: PreferNoShaping = 4096)

Trait Implementations

impl Clone for StyleStrategy

fn clone(&self) -> StyleStrategy

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for StyleStrategy

impl Debug for StyleStrategy

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for StyleStrategy

impl From<StyleStrategy> for c_int

fn from(value: StyleStrategy) -> Self

Performs the conversion.

impl From<i32> for StyleStrategy

fn from(value: c_int) -> Self

Performs the conversion.

impl PartialEq<StyleStrategy> for StyleStrategy

fn eq(&self, other: &StyleStrategy) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &StyleStrategy) -> bool

This method tests for !=.

impl StructuralEq for StyleStrategy

impl StructuralPartialEq for StyleStrategy