Merge pull request #27 from StaffEngineer/editor-limits

add editor restrictions + example

examples/restricted_input.rs

+use bevy::prelude::*;
+use bevy_cosmic_edit::{
+    change_active_editor_sprite, change_active_editor_ui, ActiveEditor, CosmicAttrs,
+    CosmicEditPlugin, CosmicEditUiBundle, CosmicFontSystem, CosmicMaxChars, CosmicMaxLines,
+    CosmicMetrics, CosmicText,
+};
+use cosmic_text::{Attrs, AttrsOwned};
+
+fn setup(mut commands: Commands, mut font_system: ResMut<CosmicFontSystem>) {
+    commands.spawn(Camera2dBundle::default());
+
+    let attrs = AttrsOwned::new(Attrs::new().color(cosmic_text::Color::rgb(69, 69, 69)));
+
+    let editor = commands
+        .spawn(
+            CosmicEditUiBundle {
+                border_color: Color::LIME_GREEN.into(),
+                style: Style {
+                    // Size and position of text box
+                    border: UiRect::all(Val::Px(4.)),
+                    width: Val::Percent(20.),
+                    height: Val::Px(50.),
+                    left: Val::Percent(40.),
+                    top: Val::Px(100.),
+                    ..default()
+                },
+                cosmic_attrs: CosmicAttrs(attrs.clone()),
+                cosmic_metrics: CosmicMetrics {
+                    font_size: 16.,
+                    line_height: 16.,
+                    ..Default::default()
+                },
+                max_chars: CosmicMaxChars(15),
+                max_lines: CosmicMaxLines(1),
+                ..default()
+            }
+            .set_text(
+                CosmicText::OneStyle(
+                    "1 line 15 chars! But this\n is longer\n than is\n allowed by\n the limits.\n"
+                        .into(),
+                ),
+                attrs,
+                &mut font_system.0,
+            ),
+        )
+        .id();
+
+    commands.insert_resource(ActiveEditor {
+        entity: Some(editor),
+    });
+}
+
+fn main() {
+    App::new()
+        .add_plugins(DefaultPlugins)
+        .add_plugins(CosmicEditPlugin::default())
+        .add_systems(Startup, setup)
+        .add_systems(Update, change_active_editor_ui)
+        .add_systems(Update, change_active_editor_sprite)
+        .run();
+}