From 9976dd05a2c5342d62313da1dc3950c521aa2d22 Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Thu, 05 Aug 2021 02:13:13 -0400
Subject: tk: Add internal grid constructor

---
diff --git a/src/tk/grid.c b/src/tk/grid.c
index ca6b180..8b6b99a 100644
--- a/src/tk/grid.c
+++ b/src/tk/grid.c
@@ -156,24 +156,14 @@ _mftk_grid_destroy(struct mftk_widget *w)
 }
 
 struct mftk_widget *
-mftk_grid_new(int rows, int cols, int row_spacing, int col_spacing, ...)
+mftk_grid_new_a(int rows, int cols, int row_spacing, int col_spacing,
+		struct mftk_widget **children)
 {
 	struct mftk_widget *w;
 	struct mftk_grid   *g;
-	va_list             ap;
-	int                 r;
-	int                 c;
 
 	mftk_widget_init(w, g, grid);
 
-	g->children = calloc(rows * cols, sizeof(*g->children));
-	if (g->children == NULL) {
-		SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
-				"Couldn't create widget: %s",
-				strerror(errno));
-		free(g);
-		return NULL;
-	}
 	g->children_x = calloc(cols, sizeof(*g->children_x));
 	if (g->children_x == NULL) {
 		SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
@@ -198,15 +188,40 @@ mftk_grid_new(int rows, int cols, int row_spacing, int col_spacing, ...)
 	g->cols        = cols;
 	g->row_spacing = row_spacing;
 	g->col_spacing = col_spacing;
+	g->children    = children;
+
+	return w;
+}
+
+struct mftk_widget *
+mftk_grid_new(int rows, int cols, int row_spacing, int col_spacing, ...)
+{
+	struct mftk_widget **children;
+	struct mftk_widget  *w;
+	va_list              ap;
+	int                  r;
+	int                  c;
+
+	children = calloc(rows * cols, sizeof(*children));
+	if (children == NULL) {
+		SDL_LogError(SDL_LOG_CATEGORY_APPLICATION,
+				"Couldn't create widget: %s",
+				strerror(errno));
+		return NULL;
+	}
 
 	va_start(ap, col_spacing);
-	for (r = 0; r < g->rows; ++r) {
-		for (c = 0; c < g->cols; ++c) {
-			g->children[r * g->cols + c] = va_arg(ap,
-					struct mftk_widget *);
+	for (r = 0; r < rows; ++r) {
+		for (c = 0; c < cols; ++c) {
+			children[r*cols + c] = va_arg(ap, struct mftk_widget *);
 		}
 	}
 	va_end(ap);
 
+	w = mftk_grid_new_a(rows, cols, row_spacing, col_spacing, children);
+	if (w == NULL) {
+		free(children);
+	}
+
 	return w;
 }
diff --git a/src/tk/widget.h b/src/tk/widget.h
index 047dd6d..1ac5f46 100644
--- a/src/tk/widget.h
+++ b/src/tk/widget.h
@@ -21,6 +21,7 @@
 #define MFTK_WIDGET_H_
 
 #include <SDL.h>
+#include <stdarg.h>
 
 struct mftk_widget {
 	int    w;
@@ -49,6 +50,10 @@ mftk_widget_new(size_t size);
 		t_w = (struct mftk_##name *) w; \
 	} while (0)
 
+struct mftk_widget *
+mftk_grid_new_a(int rows, int cols, int row_spacing, int col_spacing,
+		struct mftk_widget **children);
+
 enum mftk_check_shape {
 	MFTK_CHECK_SHAPE_BOX,
 	MFTK_CHECK_SHAPE_CIR
--
cgit v0.9.1