feat: Buttons + events

wip: malloc

feat: Buttons

src/modules/windows.rs

@@ -1,5 +1,8 @@
 use crate::graphics::{Color, Dot, Size};
 use crate::sys;
+use crate::system::debug_write;
+use crate::throw_new;
+use cstr_core::{cstr, CStr};
 
 #[repr(u32)]
 pub enum WindowKind {
@@ -16,6 +19,8 @@ pub struct WindowParams<'a> {
     pub title: Option<&'a cstr_core::CStr>,
 }
 
+pub const CLOSE_BUTTON: u32 = 1;
+
 pub fn define_window(start: Dot, size: Size, params: WindowParams<'_>) {
     const RELATIVE_FLAG: u32 = 0x20;
 
@@ -34,6 +39,68 @@ pub fn define_window(start: Dot, size: Size, params: WindowParams<'_>) {
     }
 }
 
+pub fn define_button(
+    start: Dot,
+    size: Size,
+    id: u32,
+    draw: bool,
+    border: bool,
+    color: Option<Color>,
+) {
+    if 0 >= size.width || size.width >= 0x8000 || 0 >= size.height || size.height >= 0x8000 {
+        crate::graphics::display_message(
+            Dot { x: 10, y: 200 },
+            Color::rgb(255, 0, 0),
+            CStr::from_bytes_with_nul(
+                format!(
+                    "x:{:?} y:{:?} w:{:?} h:{:?}\n\0",
+                    start.x, start.y, size.width, size.height
+                )
+                .as_bytes(),
+            )
+            .unwrap_or(cstr!("String error")),
+            None,
+        );
+        throw_new!(format!(
+            "x:{:?} y:{:?} w:{:?} h:{:?}\n",
+            start.x, start.y, size.width, size.height
+        ));
+        return;
+    }
+    if id > 0xFFFFFF {
+        throw_new!("Invalid button ID");
+        return;
+    }
+
+    let mut flags = 0;
+    if !draw {
+        flags += 1 << 30
+    };
+    if !border {
+        flags += 1 << 29
+    };
+
+    unsafe {
+        sys::define_button(
+            start.x << 16 | size.width,
+            start.y << 16 | size.height,
+            flags << 29 | id,
+            color.unwrap_or(Color::rgb(255, 255, 255)).as_rgb_val(),
+        );
+    }
+}
+
+// TODO: mouse button info
+pub fn get_button_id() -> Option<u32> {
+    unsafe {
+        let eax = sys::get_button_id();
+        if eax == 1 {
+            return None;
+        }
+        return Some(eax >> 8);
+    }
+}
+
 pub fn start_window_draw() {
     unsafe { sys::start_window_draw() }
 }