group modules and scripts

app/src/view/view_sizes.rs

@@ -0,0 +1,73 @@
+use crate::*;
+
+/// Define a type alias for iterators of sized items (columns).
+macro_rules! def_sizes_iter {
+    ($Type:ident => $($Item:ty),+) => {
+        pub(crate) trait $Type<'a> =
+            Iterator<Item=(usize, $(&'a $Item,)+ usize, usize)> + Send + Sync + 'a;}}
+
+def_sizes_iter!(ScenesSizes  => Scene);
+def_sizes_iter!(TracksSizes  => Track);
+def_sizes_iter!(InputsSizes  => JackMidiIn);
+def_sizes_iter!(OutputsSizes => JackMidiOut);
+def_sizes_iter!(PortsSizes   => Arc<str>, [PortConnect]);
+
+impl Tek {
+    /// Spacing between tracks.
+    pub(crate) const TRACK_SPACING: usize = 0;
+    /// Default scene height.
+    pub(crate) const H_SCENE: usize = 2;
+    /// Default editor height.
+    pub(crate) const H_EDITOR: usize = 15;
+
+    /// Width of display
+    pub(crate) fn w (&self) -> u16 {
+        self.size.w() as u16
+    }
+    pub(crate) fn w_sidebar (&self) -> u16 {
+        self.w() / if self.is_editing() { 16 } else { 8 } as u16
+    }
+    /// Width taken by all tracks.
+    pub(crate) fn w_tracks (&self) -> u16 {
+        self.tracks_sizes().last().map(|(_, _, _, x)|x as u16).unwrap_or(0)
+    }
+    /// Width available to display tracks.
+    pub(crate) fn w_tracks_area (&self) -> u16 {
+        self.w().saturating_sub(2 * self.w_sidebar())
+    }
+    /// Height of display
+    pub(crate) fn h (&self) -> u16 {
+        self.size.h() as u16
+    }
+    /// Height available to display tracks.
+    pub(crate) fn h_tracks_area (&self) -> u16 {
+        self.h().saturating_sub(self.h_inputs() + self.h_outputs() + 10)
+    }
+    /// Height taken by all inputs.
+    pub(crate) fn h_inputs (&self) -> u16 {
+        1 + self.inputs_sizes().last().map(|(_, _, _, _, y)|y as u16).unwrap_or(0)
+    }
+    /// Height taken by all outputs.
+    pub(crate) fn h_outputs (&self) -> u16 {
+        1 + self.outputs_sizes().last().map(|(_, _, _, _, y)|y as u16).unwrap_or(0)
+    }
+    /// Height taken by all scenes.
+    pub(crate) fn h_scenes (&self) -> u16 {
+        self.scenes_sizes(self.is_editing(), Self::H_SCENE, Self::H_EDITOR).last()
+            .map(|(_, _, _, y)|y as u16).unwrap_or(0)
+    }
+}
+#[cfg(test)] mod test {
+    use super::*;
+    #[test] fn test_view_size () {
+        let app = Tek::default();
+        let _ = app.w();
+        let _ = app.w_sidebar();
+        let _ = app.w_tracks_area();
+        let _ = app.h();
+        let _ = app.h_tracks_area();
+        let _ = app.h_inputs();
+        let _ = app.h_outputs();
+        let _ = app.h_scenes();
+    }
+}