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Add PaddedView
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@ -51,6 +51,7 @@ mod list_view;
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mod menu_popup;
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mod menubar;
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mod on_event_view;
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mod padded_view;
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mod panel;
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mod progress_bar;
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mod radio;
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@ -81,6 +82,7 @@ pub use self::list_view::{ListChild, ListView};
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pub use self::menu_popup::MenuPopup;
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pub use self::menubar::Menubar;
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pub use self::on_event_view::OnEventView;
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pub use self::padded_view::PaddedView;
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pub use self::panel::Panel;
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pub use self::progress_bar::ProgressBar;
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pub use self::radio::{RadioButton, RadioGroup};
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65
src/views/padded_view.rs
Normal file
65
src/views/padded_view.rs
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@ -0,0 +1,65 @@
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use event::{Event, EventResult};
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use vec::Vec2;
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use view::{Margins, View, ViewWrapper};
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use Printer;
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/// Adds padding to another view.
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///
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/// This view wraps another view and adds some padding.
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///
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/// The wrapped view will see a reduced space available.
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///
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/// # Examples
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///
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/// ```rust
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/// # use cursive::views::{TextView, PaddedView};
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/// // Adds 2 columns of padding to the left and to the right.
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/// let view = PaddedView::new(
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/// ((2,2), (0,0)), // ((left, right), (top, bottom))
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/// TextView::new("Padded text")
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/// );
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/// ```
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pub struct PaddedView<V> {
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view: V,
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margins: Margins,
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}
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impl<V: View> PaddedView<V> {
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/// Wraps `view` in a new `PaddedView` with the given margins.
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pub fn new<M: Into<Margins>>(margins: M, view: V) -> Self {
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let margins = margins.into();
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PaddedView { view, margins }
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}
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/// Sets the margins for this view.
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pub fn set_margins<M: Into<Margins>>(&mut self, margins: M) {
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// TODO: invalidate?
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self.margins = margins.into();
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}
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}
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impl<V: View> ViewWrapper for PaddedView<V> {
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wrap_impl!(self.view: V);
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fn wrap_required_size(&mut self, req: Vec2) -> Vec2 {
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let margins = self.margins.combined();
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self.view.required_size(req.saturating_sub(margins)) + margins
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}
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fn wrap_layout(&mut self, size: Vec2) {
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let margins = self.margins.combined();
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self.view.layout(size.saturating_sub(margins));
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}
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fn wrap_on_event(&mut self, event: Event) -> EventResult {
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let padding = self.margins.top_left();
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self.view.on_event(event.relativized(padding))
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}
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fn wrap_draw(&self, printer: &Printer) {
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let top_left = self.margins.top_left();
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let bot_right = self.margins.bot_right();
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let printer = &printer.offset(top_left).shrinked(bot_right);
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self.view.draw(printer);
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}
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}
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@ -11,6 +11,7 @@ pub struct ShadowView<T: View> {
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view: T,
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top_padding: bool,
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left_padding: bool,
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// TODO: invalidate if we change the padding?
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}
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impl<T: View> ShadowView<T> {
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