split .c and .h

src/Layout.h

@@ -0,0 +1,86 @@
+#ifndef __LAYOUT_H
+#define __LAYOUT_H
+
+
+typedef enum {
+  CSS_FLEX_DIRECTION_COLUMN = 0,
+  CSS_FLEX_DIRECTION_ROW
+} css_flex_direction_t;
+
+typedef enum {
+  CSS_JUSTIFY_FLEX_START = 0,
+  CSS_JUSTIFY_CENTER,
+  CSS_JUSTIFY_FLEX_END,
+  CSS_JUSTIFY_SPACE_BETWEEN,
+  CSS_JUSTIFY_SPACE_AROUND
+} css_justify_t;
+
+// Note: auto is only a valid value for alignSelf. It is NOT a valid value for
+// alignItems.
+typedef enum {
+  CSS_ALIGN_AUTO = 0,
+  CSS_ALIGN_FLEX_START,
+  CSS_ALIGN_CENTER,
+  CSS_ALIGN_FLEX_END,
+  CSS_ALIGN_STRETCH
+} css_align_t;
+
+typedef enum {
+  CSS_FLEX_NONE = 0,
+  CSS_FLEX_ONE
+} css_flex_t;
+
+// Note: left and top are shared between position[2] and position[4], so
+// they have to be before right and bottom.
+typedef enum {
+  CSS_LEFT = 0,
+  CSS_TOP,
+  CSS_RIGHT,
+  CSS_BOTTOM
+} css_position_t;
+
+typedef enum {
+  CSS_WIDTH = 0,
+  CSS_HEIGHT
+} css_dimension_t;
+
+
+typedef struct {
+  float position[2];
+  float dimensions[2];
+} css_layout_t;
+
+typedef struct {
+  css_flex_direction_t flex_direction;
+  css_justify_t justify_content;
+  css_align_t align_items;
+  css_align_t align_self;
+  css_flex_t flex;
+  float margin[4];
+  float padding[4];
+  float position[4];
+  float dimensions[2];
+  css_layout_t layout;
+} css_style_t;
+
+typedef struct css_node {
+  css_style_t style;
+  css_layout_t layout;
+  struct css_node *children;
+  int children_count;
+} css_node_t;
+
+
+// Lifecycle of nodes and children
+css_node_t *new_css_node();
+void init_css_node_children(css_node_t *node, int children_count);
+void free_css_node(css_node_t *node);
+
+// Print utilities
+void print_style(css_node_t *node, int level);
+void print_layout(css_node_t *node, int level);
+
+// Function that computes the layout!
+void layoutNode(css_node_t *node);
+
+#endif