Added room info and massively improved layout

src/main.rs

@@ -10,6 +10,7 @@ use embedded_graphics::{
     text::{Text},
     Drawable,
 };
+use embedded_layout::layout::linear::ElementSpacing;
 use epd_waveshare::{color::Color, epd7in5_v2::Epd7in5, prelude::WaveshareDisplay};
 use esp_idf_hal::modem::Modem;
 use esp_idf_hal::{
@@ -291,12 +292,13 @@ fn fetch_data(modem: Modem) -> anyhow::Result<(Box<Timetable>, DateTime<FixedOff
 }
 
 
+fn is_lesson_cancelled(l: &Lesson) -> bool{
+    l.code == LessonCode::Cancelled || l.subst_text.as_ref().is_some_and(|s| s == "Aufgaben")
+}
+
 fn draw_layout(display: &mut epd_waveshare::epd7in5_v2::Display7in5, timetable: &Timetable, now: DateTime<FixedOffset>, next_wakeup_time: DateTime<FixedOffset>){
     let display_area = display.bounding_box();
 
-    let margin = FixedMargin(15);
-
-
     // let text_style = MonoTextStyle::new(&embedded_graphics::mono_font::ascii::FONT_10X20, Color::White);
     let text_style = U8g2TextStyle::new(u8g2_fonts::fonts::u8g2_font_profont22_mr, Color::White);
 
@@ -312,24 +314,42 @@ fn draw_layout(display: &mut epd_waveshare::epd7in5_v2::Display7in5, timetable:
     let current_period = get_school_period(now.time());
 
     let mut texts = timetable.iter().enumerate().map(|(day_index, day)| day.iter().enumerate().map(|(period, l)| {
-        let s = if let Some(l) = l && l.code != LessonCode::Cancelled{
-                Some(l.subjects.first().unwrap().name.as_str())
+        let s = if let Some(l) = l && !is_lesson_cancelled(l){
+            (||{
+                Some(l.subjects.first()?.name.as_str())
+            })()
         }else{
             None
         }.and_then(get_full_subject_name);
+
+        let room_str = if let Some(l) = l && !is_lesson_cancelled(l){
+            (||{
+                Some(l.rooms.first()?.name.as_str())
+            })()
+        }else{
+            None
+        };
+
         let text_style = if period as u8 == current_period && day_index as u32 == day_of_week{
             &inverted_text_style
         }else{
             &text_style
         };
-        //LinearLayout::horizontal(Chain::new(Text::new()))
-        Text::new(s.unwrap_or_else(|| &empty_str), Point::zero(), text_style)
+        LinearLayout::vertical(
+            Chain::new(
+                Text::new(s.unwrap_or_else(|| &empty_str), Point::zero(), text_style)
+            ).append(
+                Text::new(room_str.unwrap_or_else(|| &empty_str), Point::zero(), &text_style_small)
+            )
+        )
+        .with_spacing(FixedMargin(2)).arrange()
+        
     }).collect::<Vec<_>>()).collect::<Vec<_>>();
 
     let mut columns = texts.iter_mut().map(|day|
         LinearLayout::vertical(Views::new(day))
             .align_to(&display_area, horizontal::Center, vertical::Top)
-            .with_spacing(margin)
+            .with_spacing(FixedMargin(15))
             .arrange()
     ).collect::<Vec<_>>();
 
@@ -343,16 +363,16 @@ fn draw_layout(display: &mut epd_waveshare::epd7in5_v2::Display7in5, timetable:
 
     let time_table_grid = LinearLayout::horizontal(columns)
         .with_alignment(vertical::Center)
-        .with_spacing(margin)
+        .with_spacing(FixedMargin(18))
         .arrange();
 
     let subtext = LinearLayout::vertical(Chain::new(time_text).append(Text::new(&next_wakeup_time_str, Point::zero(), &text_style_small))).with_alignment(horizontal::Center).with_spacing(FixedMargin(2)).arrange();
 
     LinearLayout::vertical(Chain::new(time_table_grid).append(subtext))
         .with_alignment(horizontal::Center)
-        .with_spacing(DistributeFill(display_area.size.height-20))
+        .with_spacing(DistributeFill(display_area.size.height-10))
         .arrange()
-        .align_to(&display_area, horizontal::Center, vertical::Center)
+        .align_to(&display_area, horizontal::Center, vertical::Bottom)
         .draw(display)
         .unwrap();
 }