Added setKeyboardCallback and update variants

lib/minifb/src/minifb.zig

@@ -13,6 +13,133 @@ pub const Rgb = packed struct {
     _reserved: u8 = 0,
 };
 
+pub const Key = enum(c_int) {
+    unknown = c.KB_KEY_UNKNOWN,
+
+    space = c.KB_KEY_SPACE,
+    apostrophe = c.KB_KEY_APOSTROPHE,
+    comma = c.KB_KEY_COMMA,
+    minus = c.KB_KEY_MINUS,
+    period = c.KB_KEY_PERIOD,
+    slash = c.KB_KEY_SLASH,
+    @"0" = c.KB_KEY_0,
+    @"1" = c.KB_KEY_1,
+    @"2" = c.KB_KEY_2,
+    @"3" = c.KB_KEY_3,
+    @"4" = c.KB_KEY_4,
+    @"5" = c.KB_KEY_5,
+    @"6" = c.KB_KEY_6,
+    @"7" = c.KB_KEY_7,
+    @"8" = c.KB_KEY_8,
+    @"9" = c.KB_KEY_9,
+    semicolon = c.KB_KEY_SEMICOLON,
+    equal = c.KB_KEY_EQUAL,
+    a = c.KB_KEY_A,
+    b = c.KB_KEY_B,
+    c = c.KB_KEY_C,
+    d = c.KB_KEY_D,
+    e = c.KB_KEY_E,
+    f = c.KB_KEY_F,
+    g = c.KB_KEY_G,
+    h = c.KB_KEY_H,
+    i = c.KB_KEY_I,
+    j = c.KB_KEY_J,
+    k = c.KB_KEY_K,
+    l = c.KB_KEY_L,
+    m = c.KB_KEY_M,
+    n = c.KB_KEY_N,
+    o = c.KB_KEY_O,
+    p = c.KB_KEY_P,
+    q = c.KB_KEY_Q,
+    r = c.KB_KEY_R,
+    s = c.KB_KEY_S,
+    t = c.KB_KEY_T,
+    u = c.KB_KEY_U,
+    v = c.KB_KEY_V,
+    w = c.KB_KEY_W,
+    x = c.KB_KEY_X,
+    y = c.KB_KEY_Y,
+    z = c.KB_KEY_Z,
+    left_bracket = c.KB_KEY_LEFT_BRACKET,
+    backslash = c.KB_KEY_BACKSLASH,
+    right_bracket = c.KB_KEY_RIGHT_BRACKET,
+    grave_accent = c.KB_KEY_GRAVE_ACCENT,
+    world_1 = c.KB_KEY_WORLD_1,
+    world_2 = c.KB_KEY_WORLD_2,
+
+    escape = c.KB_KEY_ESCAPE,
+    enter = c.KB_KEY_ENTER,
+    tab = c.KB_KEY_TAB,
+    backspace = c.KB_KEY_BACKSPACE,
+    insert = c.KB_KEY_INSERT,
+    delete = c.KB_KEY_DELETE,
+    right = c.KB_KEY_RIGHT,
+    left = c.KB_KEY_LEFT,
+    down = c.KB_KEY_DOWN,
+    up = c.KB_KEY_UP,
+    page_up = c.KB_KEY_PAGE_UP,
+    page_down = c.KB_KEY_PAGE_DOWN,
+    home = c.KB_KEY_HOME,
+    end = c.KB_KEY_END,
+    caps_lock = c.KB_KEY_CAPS_LOCK,
+    scroll_lock = c.KB_KEY_SCROLL_LOCK,
+    num_lock = c.KB_KEY_NUM_LOCK,
+    print_screen = c.KB_KEY_PRINT_SCREEN,
+    pause = c.KB_KEY_PAUSE,
+    f1 = c.KB_KEY_F1,
+    f2 = c.KB_KEY_F2,
+    f3 = c.KB_KEY_F3,
+    f4 = c.KB_KEY_F4,
+    f5 = c.KB_KEY_F5,
+    f6 = c.KB_KEY_F6,
+    f7 = c.KB_KEY_F7,
+    f8 = c.KB_KEY_F8,
+    f9 = c.KB_KEY_F9,
+    f10 = c.KB_KEY_F10,
+    f11 = c.KB_KEY_F11,
+    f12 = c.KB_KEY_F12,
+    f13 = c.KB_KEY_F13,
+    f14 = c.KB_KEY_F14,
+    f15 = c.KB_KEY_F15,
+    f16 = c.KB_KEY_F16,
+    f17 = c.KB_KEY_F17,
+    f18 = c.KB_KEY_F18,
+    f19 = c.KB_KEY_F19,
+    f20 = c.KB_KEY_F20,
+    f21 = c.KB_KEY_F21,
+    f22 = c.KB_KEY_F22,
+    f23 = c.KB_KEY_F23,
+    f24 = c.KB_KEY_F24,
+    f25 = c.KB_KEY_F25,
+    kp_0 = c.KB_KEY_KP_0,
+    kp_1 = c.KB_KEY_KP_1,
+    kp_2 = c.KB_KEY_KP_2,
+    kp_3 = c.KB_KEY_KP_3,
+    kp_4 = c.KB_KEY_KP_4,
+    kp_5 = c.KB_KEY_KP_5,
+    kp_6 = c.KB_KEY_KP_6,
+    kp_7 = c.KB_KEY_KP_7,
+    kp_8 = c.KB_KEY_KP_8,
+    kp_9 = c.KB_KEY_KP_9,
+    kp_decimal = c.KB_KEY_KP_DECIMAL,
+    kp_divide = c.KB_KEY_KP_DIVIDE,
+    kp_multiply = c.KB_KEY_KP_MULTIPLY,
+    kp_subtract = c.KB_KEY_KP_SUBTRACT,
+    kp_add = c.KB_KEY_KP_ADD,
+    kp_enter = c.KB_KEY_KP_ENTER,
+    kp_equal = c.KB_KEY_KP_EQUAL,
+    left_shift = c.KB_KEY_LEFT_SHIFT,
+    left_control = c.KB_KEY_LEFT_CONTROL,
+    left_alt = c.KB_KEY_LEFT_ALT,
+    left_super = c.KB_KEY_LEFT_SUPER,
+    right_shift = c.KB_KEY_RIGHT_SHIFT,
+    right_control = c.KB_KEY_RIGHT_CONTROL,
+    right_alt = c.KB_KEY_RIGHT_ALT,
+    right_super = c.KB_KEY_RIGHT_SUPER,
+    menu = c.KB_KEY_MENU,
+    _,
+};
+
 pub const KeyMod = packed struct {
     shift: bool = false,
     control: bool = false,
@@ -76,7 +203,20 @@ pub fn Window(comptime TUserData: type) type {
             InternalError,
         };
 
-        pub const State = enum { ok, exit };
+        pub const UpdateState = enum {
+            ok,
+            exit,
+
+            pub fn from(state: c.mfb_update_state) UpdateError!UpdateState {
+                return switch (state) {
+                    c.STATE_OK => UpdateState.ok,
+                    c.STATE_EXIT => UpdateState.exit,
+                    c.STATE_INVALID_WINDOW => UpdateError.InvalidWindow,
+                    c.STATE_INVALID_BUFFER => UpdateError.InvalidBuffer,
+                    else => UpdateError.InternalError,
+                };
+            }
+        };
 
         pub const OpenFlags = packed struct {
             resizable: bool = false,
@@ -108,15 +248,16 @@ pub fn Window(comptime TUserData: type) type {
             return c.mfb_wait_sync(self.cwin);
         }
 
-        pub fn update(self: Window(TUserData), buffer: []Rgb) UpdateError!State {
-            const rawState = c.mfb_update(self.cwin, @ptrCast(*anyopaque, buffer.ptr));
-            switch (rawState) {
-                c.STATE_OK => return State.ok,
-                c.STATE_EXIT => return State.exit,
-                c.STATE_INVALID_WINDOW => return UpdateError.InvalidWindow,
-                c.STATE_INVALID_BUFFER => return UpdateError.InvalidBuffer,
-                else => return UpdateError.InternalError,
+        pub fn update(self: Window(TUserData), buffer: []Rgb) UpdateError!UpdateState {
+            return UpdateState.from(c.mfb_update(self.cwin, @ptrCast(*anyopaque, buffer.ptr)));
         }
+
+        pub fn updateEvents(self: Window(TUserData)) UpdateError!UpdateState {
+            return UpdateState.from(c.mfb_update_events(self.cwin));
+        }
+
+        pub fn updateEx(self: Window(TUserData), buffer: []Rgb, width: u32, height: u32) UpdateError!UpdateState {
+            return UpdateState.from(c.mfb_update_ex(self.cwin), @ptrCast(*anyopaque, buffer), width, height);
         }
 
         pub fn setUserData(self: Window(TUserData), data: *TUserData) void {
@@ -153,6 +294,11 @@ pub fn Window(comptime TUserData: type) type {
             c.mfb_set_mouse_scroll_callback(self.cwin, @ptrCast(c.mfb_mouse_scroll_func, callback));
         }
 
+        pub const KeyboardFunc = fn (win: Window(TUserData), key: Key, key_mod: KeyMod, is_pressed: bool) callconv(.C) void;
+        pub fn setKeyboardCallback(self: Window(TUserData), callback: KeyboardFunc) void {
+            c.mfb_set_keyboard_callback(self.cwin, @ptrCast(c.mfb_keyboard_func, callback));
+        }
+
         pub fn setViewport(self: Window(TUserData), offset_x: u32, offset_y: u32, width: u32, height: u32) bool {
             return c.mfb_set_viewport(self.cwin, offset_x, offset_y, width, height);
         }

src/main.zig

@@ -41,6 +41,7 @@ const State = struct {
     },
     rectangle_width: f32 = @intToFloat(f32, Width) / 3.0,
     rectangle_height: f32 = @intToFloat(f32, Height) / 3.0,
+    paused: bool = false,
 
     pub fn init(alloc: std.mem.Allocator, period: f64) !State {
         var timer = try alloc.create(mfb.Timer);
@@ -195,6 +196,15 @@ fn handleMouseScroll(win: mfb.Window(State), key_mod: mfb.KeyMod, delta_x: f32,
     }
 }
 
+fn handleKeyboard(win: mfb.Window(State), key: mfb.Key, _: mfb.KeyMod, is_pressed: bool) callconv(.C) void {
+    if (key == mfb.Key.escape and is_pressed) {
+        win.close();
+    } else if (key == mfb.Key.space and is_pressed) {
+        var state = win.getUserData().?;
+        state.*.paused = !state.*.paused;
+    }
+}
+
 pub fn main() !void {
     var gp_allocator = std.heap.GeneralPurposeAllocator(.{}){};
     const alloc = gp_allocator.allocator();
@@ -213,6 +223,7 @@ pub fn main() !void {
     win.setMouseButtonCallback(handleMouseButton);
     win.setMouseMoveCallback(handleMouseMove);
     win.setMouseScrollCallback(handleMouseScroll);
+    win.setKeyboardCallback(handleKeyboard);
 
     var buf = try Buffer.init(alloc, Width, Height);
     defer buf.deinit();
@@ -221,6 +232,10 @@ pub fn main() !void {
     while (win.waitSync()) {
         state.render(buf);
         // TODO Handle mfb state
+        if (state.paused) {
+            _ = win.updateEvents() catch unreachable;
+        } else {
             _ = win.update(buf.slice) catch unreachable;
         }
+    }
 }