add; configurable animations

1 files changed, 48 insertions, 0 deletions

diff --git a/src/animations.rs b/src/animations.rs
new file mode 100644
index 0000000..634986b
--- /dev/null
+++ b/src/animations.rs
@@ -0,0 +1,48 @@
+use crate::IndicatorConfig;
+use std::thread;
+use std::time::Duration;
+
+pub struct Animation {
+    duration_per_frame: Duration,
+    frames: Vec<xcb::Arc>,
+    clear: bool,
+}
+
+impl Animation {
+    pub fn circles(
+        config: IndicatorConfig,
+        function: Box<dyn DoubleEndedIterator<Item = u16>>,
+        clear: bool,
+    ) -> Animation {
+        let no_of_frames = config.framerate;
+        let duration_per_frame =
+            Duration::from_millis(config.duration).div_f64(no_of_frames as f64);
+        let frames = function
+            .map(|i| {
+                xcb::Arc::new(
+                    ((config.max_size as f32) / (2. * no_of_frames as f32) * i as f32) as i16, // x
+                    ((config.max_size as f32) / (2. * no_of_frames as f32) * i as f32) as i16, // y
+                    (config.max_size) - (config.max_size / no_of_frames) * i as u16, // width
+                    (config.max_size) - (config.max_size / no_of_frames) * i as u16, // height
+                    0,                                                               // start angle
+                    360 << 6,                                                        // end angle
+                )
+            })
+            .collect::<Vec<xcb::Arc>>();
+        return Animation {
+            duration_per_frame,
+            frames,
+            clear,
+        };
+    }
+    pub fn play(&self, conn: &xcb::Connection, win: u32, gfx_ctx: u32) {
+        for frame in &self.frames {
+            xcb::poly_arc(&conn, win, gfx_ctx, &[*frame]);
+            conn.flush();
+            if self.clear {
+                xcb::clear_area(&conn, true, win, frame.x(), frame.y(), 2000, 2000);
+            }
+            thread::sleep(self.duration_per_frame);
+        }
+    }
+}