1 files changed, 85 insertions, 0 deletions
diff --git a/richwin.c b/richwin.c
new file mode 100644
index 0000000..07af571
--- /dev/null
+++ b/richwin.c
@@ -0,0 +1,85 @@
+#include <stdlib.h> // for malloc() and free()
+#include <string.h> // for memcpy()
+#include <assert.h>
+
+#include <curses.h>
+#include "fun_menu.h"
+#include "richwin.h"
+
+/* richwin_new */
+struct RichWin *
+richwin_new(int lines, int cols, int begy, int begx,
+	struct WinBorders *winborders)
+{
+	assert(lines >= 0);
+	assert(cols >= 0);
+	assert(begy >= 0);
+	assert(begx >= 0);
+	// create a temporary struct for initializing const members of 'richwin'
+	struct RichWin richwin_init = {
+		.lines = lines, .cols = cols,
+		.begy = begy, .begx = begx,
+	};
+
+	// ask curses for a window
+	richwin_init.win = newwin(lines, cols, begy, begx);
+	if (richwin_init.win == NULL) {
+		richwin_error_code = ERROR_WINDOW_CREATION;
+		return NULL;
+	}
+	// allocate window borders struct if user asked for it
+	if (winborders != NULL) {
+		richwin_init.winborders = malloc(sizeof *richwin_init.winborders);
+		if (richwin_init.winborders == NULL) {
+			richwin_error_code = ERROR_MEMORY_ALLOCATION;
+			return NULL;
+		}
+		*richwin_init.winborders = *winborders;
+	}
+
+	// allocate rich window struct
+	struct RichWin *richwin = malloc(sizeof *richwin);
+	if (richwin == NULL) {
+		richwin_error_code = ERROR_MEMORY_ALLOCATION;
+		return NULL;
+	}
+	// initialize 'richwin' from 'richwin_init'
+	memcpy(richwin, &richwin_init, sizeof *richwin);
+	return richwin;
+}
+
+/* richwin_new_centered */
+struct RichWin *
+richwin_new_centered(int lines, int cols, struct WinBorders *winborders)
+{
+	assert(lines <= LINES);
+	assert(cols <= COLS);
+	// no need for asserting because this is a convenience wrapper
+	return richwin_new(lines, cols, (LINES-lines)/2, (COLS-cols)/2,
+		winborders);
+}
+
+/* richwin_border */
+int
+richwin_border(struct RichWin *richwin)
+{
+	assert(richwin != NULL);
+	assert(richwin->winborders != NULL);
+	struct WinBorders *winborders = richwin->winborders;
+	return wborder(richwin->win,
+		 winborders->ls, winborders->rs, winborders->ts, winborders->bs,
+		 winborders->tl, winborders->tr, winborders->bl, winborders->br);
+}
+
+/* richwin_del */
+int
+richwin_del(struct RichWin *richwin)
+{
+	assert(richwin != NULL);
+	if (delwin(richwin->win) == ERR) {
+		return ERR;
+	}
+	free(richwin->winborders);
+	free(richwin);
+	return OK;
+}