Cargo.toml

@@ -15,8 +15,8 @@ name = "con"
 path = "examples/con.rs"
 
 [[example]]
-name = "sqr"
-path = "examples/sqr.rs"
+name = "dark"
+path = "examples/dark.rs"
 
 [profile.release]
 opt-level = "z"

examples/dark.rs

@@ -0,0 +1,118 @@
+#![no_std]
+#![no_main]
+
+use cstr_core::{cstr, CStr};
+
+use kos::{
+    graphics::{display_message, Color, Dot, Size},
+    input::fetch_key,
+    threads::{exit, fetch_event, Event},
+    windows::{
+        define_button, define_window, end_window_draw, get_button_id, invert_pixel,
+        start_window_draw, WindowKind, WindowParams, CLOSE_BUTTON,
+    },
+};
+
+const HEADER: &CStr = cstr!("Dark Mode Demo");
+const TEXT: [&CStr; 6] = [
+    cstr!("Lorem ipsum dolor sit amet,"),
+    cstr!("semper et rutrum placerat,"),
+    cstr!("Integer sed diam commodo quam varius"),
+    cstr!("Sed finibus urna sit amet felis"),
+    cstr!("vestibulum elementum. Maecenas at feugiat lacus"),
+    cstr!("tristique et sit amet tortor."),
+];
+const BTN: u32 = 42;
+const WINDOW_SIZE: Size = Size {
+    width: 400,
+    height: 400,
+};
+
+extern crate alloc;
+
+fn draw_window(invert: bool) {
+    start_window_draw();
+
+    define_window(
+        Dot { x: 50, y: 50 },
+        WINDOW_SIZE,
+        WindowParams {
+            color: Color::rgb(0xff, 0xff, 0xff),
+            kind: WindowKind::FixedThemed,
+            title: Some(HEADER),
+        },
+    );
+
+    display_message(Dot { x: 10, y: 10 }, Color::rgb(0, 0, 0), TEXT[0], None);
+    display_message(Dot { x: 10, y: 50 }, Color::rgb(0, 0, 0), TEXT[1], None);
+    display_message(Dot { x: 10, y: 90 }, Color::rgb(0, 0, 0), TEXT[2], None);
+    display_message(Dot { x: 10, y: 130 }, Color::rgb(0, 0, 0), TEXT[3], None);
+    display_message(Dot { x: 10, y: 170 }, Color::rgb(0, 0, 0), TEXT[4], None);
+    display_message(Dot { x: 10, y: 210 }, Color::rgb(0, 0, 0), TEXT[5], None);
+
+    define_button(
+        Dot { x: 10, y: 300 },
+        Size {
+            width: 100,
+            height: 30,
+        },
+        BTN,
+        true,
+        true,
+        Some(Color::rgb(147, 112, 219)),
+    );
+
+    display_message(
+        Dot { x: 20, y: 310 },
+        Color::rgb(255, 255, 255),
+        if invert {
+            cstr!("Light mode")
+        } else {
+            cstr!("Dark mode")
+        },
+        None,
+    );
+
+    if invert {
+        for x in 0..WINDOW_SIZE.width {
+            for y in 0..WINDOW_SIZE.height {
+                invert_pixel(Dot { x, y })
+            }
+        }
+    }
+
+    end_window_draw();
+
+    return;
+}
+
+fn button_handler(invert: &mut bool) {
+    let btn_id = get_button_id();
+
+    if btn_id.is_some() {
+        match btn_id.unwrap() {
+            CLOSE_BUTTON => exit(),
+            BTN => {
+                *invert = !*invert;
+                draw_window(*invert);
+            }
+            _ => {}
+        }
+    }
+}
+
+#[no_mangle]
+fn kol_main() {
+    let mut invert = false;
+
+    while let Some(ev) =
+        fetch_event((Event::Redraw as u32) | (Event::KeyPress as u32) | (Event::BtnPress as u32))
+    {
+        match ev {
+            Event::Redraw => draw_window(invert),
+            Event::KeyPress => drop(fetch_key()),
+            Event::BtnPress => button_handler(&mut invert),
+            _ => break,
+        }
+    }
+}

examples/sqr.rs

@@ -1,88 +0,0 @@
-#![no_std]
-#![no_main]
-
-use alloc::vec::Vec;
-use cstr_core::{cstr, CStr};
-
-use kos::{
-    graphics::{display_message, Color, Dot, Size},
-    input::fetch_key,
-    system::{get_lang, Lang},
-    threads::{exit, fetch_event, Event},
-    windows::{
-        define_button, define_window, end_window_draw, get_button_id, put_pixel, start_window_draw,
-        WindowKind, WindowParams, CLOSE_BUTTON,
-    },
-};
-
-const HEADER: &CStr = cstr!("Hey Kolibri");
-const MSG: &CStr = cstr!("Hello GSoC 2024");
-const BTN: u32 = 42;
-const COLORS: [(u8, u8, u8); 3] = [(255, 0, 0), (0, 255, 0), (0, 0, 255)];
-
-#[macro_use]
-extern crate alloc;
-
-fn draw_window(c: usize) {
-    start_window_draw();
-
-    define_window(
-        Dot { x: 50, y: 50 },
-        Size {
-            width: 500,
-            height: 500,
-        },
-        WindowParams {
-            color: Color::rgb(0xff, 0xff, 0xff),
-            kind: WindowKind::Themed,
-            title: Some(HEADER),
-        },
-    );
-
-    for i in 60..300 {
-        for j in 60..300 {
-            put_pixel(Dot { x: i, y: j }, Some(Color::rgb(255, 0, 0)), None);
-        }
-    }
-
-    for i in 200..440 {
-        for j in 200..440 {
-            put_pixel(Dot { x: i, y: j }, None, Some(true));
-        }
-    }
-
-    end_window_draw();
-
-    return;
-}
-
-fn button_handler(c: &mut usize) {
-    let btn_id = get_button_id();
-
-    if btn_id.is_some() {
-        match btn_id.unwrap() {
-            CLOSE_BUTTON => exit(),
-            BTN => {
-                *c += 1;
-                draw_window(*c);
-            }
-            _ => {}
-        }
-    }
-}
-
-#[no_mangle]
-fn kol_main() {
-    let mut c = 0;
-
-    while let Some(ev) =
-        fetch_event((Event::Redraw as u32) | (Event::KeyPress as u32) | (Event::BtnPress as u32))
-    {
-        match ev {
-            Event::Redraw => draw_window(c),
-            Event::KeyPress => drop(fetch_key()),
-            Event::BtnPress => button_handler(&mut c),
-            _ => break,
-        }
-    }
-}

src/modules/windows.rs

@@ -39,10 +39,13 @@ pub fn define_window(start: Dot, size: Size, params: WindowParams<'_>) {
     }
 }
 
-pub fn put_pixel(pos: Dot, color: Option<Color>, invert: Option<bool>) {
-    let invert: u32 = invert.unwrap_or(false) as u32;
+pub fn put_pixel(pos: Dot, color: Option<Color>) {
     let color: u32 = color.unwrap_or(Color::rgb(255, 255, 255)).as_rgb_val();
-    unsafe { sys::put_pixel(pos.x, pos.y, invert << 24 | color) }
+    unsafe { sys::put_pixel(pos.x, pos.y, color) }
+}
+
+pub fn invert_pixel(pos: Dot) {
+    unsafe { sys::put_pixel(pos.x, pos.y, 1 << 24) }
 }
 
 pub fn define_button(