translate main to zig

src/main.zig

@@ -20,6 +20,35 @@ export fn text_height(font: c.mu_Font) c_int {
     return c.r_get_text_height();
 }
 
+fn toMuMouse(sdl_mouse: u8) u8 {
+    return switch (sdl_mouse) {
+        c.SDL_BUTTON_LEFT => c.MU_MOUSE_LEFT,
+        c.SDL_BUTTON_RIGHT => c.MU_MOUSE_RIGHT,
+        c.SDL_BUTTON_MIDDLE => c.MU_MOUSE_MIDDLE,
+        else => 0,
+    };
+}
+
+fn toMuKey(sdl_key: i32) u8 {
+    return switch (sdl_key) {
+        c.SDLK_LSHIFT => c.MU_KEY_SHIFT,
+        c.SDLK_RSHIFT => c.MU_KEY_SHIFT,
+        c.SDLK_LCTRL => c.MU_KEY_CTRL,
+        c.SDLK_RCTRL => c.MU_KEY_CTRL,
+        c.SDLK_LALT => c.MU_KEY_ALT,
+        c.SDLK_RALT => c.MU_KEY_ALT,
+        c.SDLK_RETURN => c.MU_KEY_RETURN,
+        c.SDLK_BACKSPACE => c.MU_KEY_BACKSPACE,
+
+        else => 0,
+    };
+}
+
+fn processFrame(ctx: *c.mu_Context) void {
+    c.mu_begin(ctx);
+    c.mu_end(ctx);
+}
+
 pub fn main() anyerror!void {
     _ = c.SDL_Init(c.SDL_INIT_EVERYTHING);
     c.r_init();
@@ -34,12 +63,51 @@ pub fn main() anyerror!void {
 
     while (true) {
         var e: c.SDL_Event = undefined;
-
         while (c.SDL_PollEvent(&e) != 0) {
             switch (e.@"type") {
                 c.SDL_QUIT => std.os.exit(0),
-                else => @panic("fuck"),
+                c.SDL_MOUSEMOTION => c.mu_input_mousemove(ctx, e.motion.x, e.motion.y),
+                c.SDL_MOUSEWHEEL => c.mu_input_scroll(ctx, 0, e.motion.y * -30),
+                c.SDL_TEXTINPUT => c.mu_input_text(ctx, &e.text.text),
+
+                c.SDL_MOUSEBUTTONDOWN, c.SDL_MOUSEBUTTONUP => {
+                    const b = toMuMouse(e.button.button);
+                    if (b != 0 and e.type == c.SDL_MOUSEBUTTONDOWN) {
+                        c.mu_input_mousedown(ctx, e.button.x, e.button.y, b);
+                    }
+                    if (b != 0 and e.type == c.SDL_MOUSEBUTTONUP) {
+                        c.mu_input_mouseup(ctx, e.button.x, e.button.y, b);
+                    }
+                },
+
+                c.SDL_KEYDOWN, c.SDL_KEYUP => {
+                    var mu_char = toMuKey(e.key.keysym.sym);
+
+                    if (mu_char != 0 and e.@"type" == c.SDL_KEYDOWN) {
+                        c.mu_input_keydown(ctx, mu_char);
+                    }
+                    if (mu_char != 0 and e.@"type" == c.SDL_KEYUP) {
+                        c.mu_input_keyup(ctx, mu_char);
+                    }
+                },
+                else => {},
             }
         }
+
+        processFrame(ctx);
+
+        c.r_clear(c.mu_color(90, 95, 100, 255));
+        var cmd: [*c]c.mu_Command = null;
+        while (c.mu_next_command(ctx, &cmd) != 0) {
+            switch (cmd.*.@"type") {
+                c.MU_COMMAND_TEXT => c.r_draw_text(&cmd.*.text.str, cmd.*.text.pos, cmd.*.text.color),
+                c.MU_COMMAND_RECT => c.r_draw_rect(cmd.*.rect.rect, cmd.*.rect.color),
+                c.MU_COMMAND_ICON => c.r_draw_icon(cmd.*.icon.id, cmd.*.icon.rect, cmd.*.icon.color),
+                c.MU_COMMAND_CLIP => c.r_set_clip_rect(cmd.*.clip.rect),
+                else => {},
+            }
+        }
+
+        c.r_present();
     }
 }