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added with_theme to Printer

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This commit is contained in:
Andrzej J Skalski 2018-05-21 15:53:38 +02:00 committed by Alexandre Bury
parent c5cf5f64bd
commit 92cf2eb7c8
1 changed files with 23 additions and 6 deletions
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29
src/printer.rs
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@ -11,7 +11,7 @@ use utils::lines::simple::prefix;
use vec::Vec2; use vec::Vec2;
/// Convenient interface to draw on a subset of the screen. /// Convenient interface to draw on a subset of the screen.
pub struct Printer<'a> { pub struct Printer<'a, 'b> {
/// Offset into the window this printer should start drawing at. /// Offset into the window this printer should start drawing at.
pub offset: Vec2, pub offset: Vec2,
/// Size of the area we are allowed to draw on. /// Size of the area we are allowed to draw on.
@ -24,16 +24,16 @@ pub struct Printer<'a> {
/// `true` if nothing has been drawn yet. /// `true` if nothing has been drawn yet.
new: Rc<Cell<bool>>, new: Rc<Cell<bool>>,
/// Backend used to actually draw things /// Backend used to actually draw things
backend: &'a backend::Concrete, backend: &'b backend::Concrete,
} }
impl<'a> Printer<'a> { impl<'a, 'b> Printer<'a, 'b> {
/// Creates a new printer on the given window. /// Creates a new printer on the given window.
/// ///
/// But nobody needs to know that. /// But nobody needs to know that.
#[doc(hidden)] #[doc(hidden)]
pub fn new<T: Into<Vec2>>( pub fn new<T: Into<Vec2>>(
size: T, theme: &'a Theme, backend: &'a backend::Concrete size: T, theme: &'a Theme, backend: &'b backend::Concrete
) -> Self { ) -> Self {
Printer { Printer {
offset: Vec2::zero(), offset: Vec2::zero(),
@ -168,6 +168,23 @@ impl<'a> Printer<'a> {
self.backend.with_effect(effect, || f(self)); self.backend.with_effect(effect, || f(self));
} }
/// Call the given closure with a modified printer
/// that will apply the given theme on prints.
pub fn with_theme<F>(&self, theme: &Theme, f: F)
where
F: FnOnce(&Printer),
{
let new_printer = Printer {
offset: self.offset,
size: self.size,
focused: self.focused,
theme : theme,
new: self.new.clone(),
backend : self.backend
};
f(&new_printer);
}
/// Call the given closure with a modified printer /// Call the given closure with a modified printer
/// that will apply each given effect on prints. /// that will apply each given effect on prints.
pub fn with_effects<F>(&self, effects: EnumSet<Effect>, f: F) pub fn with_effects<F>(&self, effects: EnumSet<Effect>, f: F)
@ -299,8 +316,8 @@ impl<'a> Printer<'a> {
/// Returns a printer on a subset of this one's area. /// Returns a printer on a subset of this one's area.
pub fn sub_printer<S: Into<Vec2>, T: Into<Vec2>>( pub fn sub_printer<S: Into<Vec2>, T: Into<Vec2>>(
&'a self, offset: S, size: T, focused: bool &self, offset: S, size: T, focused: bool
) -> Printer<'a> { ) -> Printer<'a, 'b> {
let size = size.into(); let size = size.into();
let offset = offset.into().or_min(self.size); let offset = offset.into().or_min(self.size);
let available = if !offset.fits_in(self.size) { let available = if !offset.fits_in(self.size) {