initial commit

include/layout.h

@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: GPL-3.0-only */
+/*
+ * Keyboard layout management.
+ *
+ * Copyright (c) 2024, Richard Acayan. All rights reserved.
+ */
+
+#ifndef UFKBD_LAYOUT_H
+#define UFKBD_LAYOUT_H
+
+#include <stddef.h>
+
+struct ufkbd_key;
+
+struct ufkbd_layout_column {
+	double x1_unscaled, x2_unscaled;
+	int x1, x2;
+
+	struct ufkbd_key *key;
+};
+
+struct ufkbd_layout_row {
+	double y1_unscaled, y2_unscaled;
+	int y1, y2;
+
+	size_t n_cols;
+	struct ufkbd_layout_column *cols;
+};
+
+struct ufkbd_layout {
+	size_t max_cols;
+
+	size_t n_rows;
+	struct ufkbd_layout_row *rows;
+};
+
+struct ufkbd_layout *ufkbd_layout_init(void);
+void ufkbd_layout_uninit(struct ufkbd_layout *layout);
+
+struct ufkbd_key *ufkbd_layout_search(struct ufkbd_layout *layout, int x, int y,
+				      int *x1, int *y1, int *x2, int *y2);
+void ufkbd_layout_foreach(struct ufkbd_layout *layout,
+			  void (*func)(struct ufkbd_key *key,
+				       int x1, int y1, int x2, int y2,
+				       void *data),
+			  void *data);
+void ufkbd_layout_resize(struct ufkbd_layout *layout, int width, int height);
+
+#endif