Add ThemedView

cursive-core/src/views/mod.rs

@@ -93,43 +93,47 @@ mod slider_view;
 mod stack_view;
 mod text_area;
 mod text_view;
+mod themed_view;
 mod tracked_view;
 
-pub use self::boxed_view::BoxedView;
+pub use self::{
-pub use self::button::Button;
+    boxed_view::BoxedView,
-pub use self::canvas::Canvas;
+    button::Button,
-pub use self::checkbox::Checkbox;
+    canvas::Canvas,
-pub use self::circular_focus::CircularFocus;
+    checkbox::Checkbox,
-pub use self::debug_view::DebugView;
+    circular_focus::CircularFocus,
-pub use self::dialog::{Dialog, DialogFocus};
+    debug_view::DebugView,
-pub use self::dummy::DummyView;
+    dialog::{Dialog, DialogFocus},
-pub use self::edit_view::EditView;
+    dummy::DummyView,
-pub use self::enableable_view::EnableableView;
+    edit_view::EditView,
-pub use self::fixed_layout::FixedLayout;
+    enableable_view::EnableableView,
-pub use self::hideable_view::HideableView;
+    fixed_layout::FixedLayout,
-pub use self::last_size_view::LastSizeView;
+    hideable_view::HideableView,
-pub use self::layer::Layer;
+    last_size_view::LastSizeView,
-pub use self::linear_layout::LinearLayout;
+    layer::Layer,
-pub use self::list_view::{ListChild, ListView};
+    linear_layout::LinearLayout,
-pub use self::menu_popup::MenuPopup;
+    list_view::{ListChild, ListView},
-pub use self::menubar::Menubar;
+    menu_popup::MenuPopup,
-pub use self::named_view::{NamedView, ViewRef};
+    menubar::Menubar,
-pub use self::on_event_view::OnEventView;
+    named_view::{NamedView, ViewRef},
-pub use self::on_layout_view::OnLayoutView;
+    on_event_view::OnEventView,
-pub use self::padded_view::PaddedView;
+    on_layout_view::OnLayoutView,
-pub use self::panel::Panel;
+    padded_view::PaddedView,
-pub use self::progress_bar::ProgressBar;
+    panel::Panel,
-pub use self::radio::{RadioButton, RadioGroup};
+    progress_bar::ProgressBar,
-pub use self::resized_view::ResizedView;
+    radio::{RadioButton, RadioGroup},
-pub use self::screens_view::ScreensView;
+    resized_view::ResizedView,
-pub use self::scroll_view::ScrollView;
+    screens_view::ScreensView,
-pub use self::select_view::SelectView;
+    scroll_view::ScrollView,
-pub use self::shadow_view::ShadowView;
+    select_view::SelectView,
-pub use self::slider_view::SliderView;
+    shadow_view::ShadowView,
-pub use self::stack_view::{LayerPosition, StackView};
+    slider_view::SliderView,
-pub use self::text_area::TextArea;
+    stack_view::{LayerPosition, StackView},
-pub use self::text_view::{TextContent, TextContentRef, TextView};
+    text_area::TextArea,
-pub use self::tracked_view::TrackedView;
+    text_view::{TextContent, TextContentRef, TextView},
+    themed_view::ThemedView,
+    tracked_view::TrackedView,
+};
 
 /// Same as [`LastSizeView`](self::LastSizeView).
 #[deprecated(note = "`SizedView` is being renamed to `LastSizeView`")]

cursive-core/src/views/themed_view.rs

@@ -0,0 +1,39 @@
+use crate::view::{View, ViewWrapper};
+
+/// Applies a theme to the wrapped view.
+pub struct ThemedView<T> {
+    theme: crate::theme::Theme,
+    view: T,
+}
+
+impl<T> ThemedView<T> {
+    /// Wrap the given view with a theme.
+    pub fn new(theme: crate::theme::Theme, view: T) -> Self {
+        ThemedView { theme, view }
+    }
+
+    /// Retrieve the wrapped theme.
+    pub fn get_theme(&self) -> &crate::theme::Theme {
+        &self.theme
+    }
+
+    /// Sets a new theme for the wrapped view.
+    pub fn set_theme(&mut self, theme: crate::theme::Theme) {
+        self.theme = theme;
+    }
+
+    inner_getters!(self.view: T);
+}
+
+impl<T: View> ViewWrapper for ThemedView<T> {
+    wrap_impl!(self.view: T);
+
+    fn wrap_draw(&self, printer: &crate::Printer) {
+        printer.theme(&self.theme).with_style(
+            crate::theme::ColorStyle::primary(),
+            |printer| {
+                self.view.draw(printer);
+            },
+        );
+    }
+}

examples/src/bin/themed_view.rs

@@ -0,0 +1,34 @@
+use cursive::{self, theme, views, With};
+
+fn main() {
+    let mut cursive = cursive::default();
+
+    cursive.add_layer(
+        views::Dialog::text("Open a themed dialog?")
+            .button("Open", show_dialog)
+            .button("Quit", |s| s.quit()),
+    );
+
+    cursive.run();
+}
+
+fn show_dialog(s: &mut cursive::Cursive) {
+    // Let's build a green theme
+    let theme = s.current_theme().clone().with(|theme| {
+        theme.palette[theme::PaletteColor::View] =
+            theme::Color::Dark(theme::BaseColor::Black);
+        theme.palette[theme::PaletteColor::Primary] =
+            theme::Color::Light(theme::BaseColor::Green);
+        theme.palette[theme::PaletteColor::TitlePrimary] =
+            theme::Color::Light(theme::BaseColor::Green);
+        theme.palette[theme::PaletteColor::Highlight] =
+            theme::Color::Dark(theme::BaseColor::Green);
+    });
+
+    s.add_layer(views::ThemedView::new(
+        theme,
+        views::Layer::new(
+            views::Dialog::info("Colors!").title("Themed Dialog"),
+        ),
+    ));
+}