Merge pull request #285 from litehtml/flex_layoutHEADv0.9dev

Flex layout

1 files changed, 56 insertions, 0 deletions

diff --git a/include/litehtml/flex_line.h b/include/litehtml/flex_line.h
new file mode 100644
index 00000000..4803d238
--- /dev/null
+++ b/include/litehtml/flex_line.h
@@ -0,0 +1,56 @@
+#ifndef LITEHTML_FLEX_LINE_H
+#define LITEHTML_FLEX_LINE_H
+
+#include "formatting_context.h"
+
+namespace litehtml
+{
+	class flex_item;
+
+	class flex_line
+	{
+		public:
+		std::list<std::shared_ptr<flex_item>> items;
+		int cross_start;	// for row direction: top. for column direction: left
+		int main_size;		// sum of all items main size
+		int cross_size;		// sum of all items cross size
+		int base_size;
+		int total_grow;
+		int total_shrink;
+		int num_auto_margin_main_start;		// number of items with auto margin left/top
+		int num_auto_margin_main_end;		// number of items with auto margin right/bottom
+		baseline first_baseline;
+		baseline last_baseline;
+		bool reverse_main;
+		bool reverse_cross;
+
+		flex_line(bool _reverse_main, bool _reverse_cross) :
+				cross_size(0),
+				cross_start(0),
+				total_grow(0),
+				base_size(0),
+				total_shrink(0),
+				main_size(0),
+				num_auto_margin_main_start(0),
+				num_auto_margin_main_end(0),
+				first_baseline(),
+				last_baseline(),
+				reverse_main(_reverse_main),
+				reverse_cross(_reverse_cross)
+		{}
+
+		void init(int container_main_size, bool fit_container, bool is_row_direction,
+				  const litehtml::containing_block_context &self_size,
+				  litehtml::formatting_context *fmt_ctx);
+		bool distribute_main_auto_margins(int free_main_size);
+		int  calculate_items_position(int container_main_size,
+									  flex_justify_content justify_content,
+									  bool is_row_direction,
+									  const containing_block_context &self_size,
+									  formatting_context *fmt_ctx);
+	protected:
+		void distribute_free_space(int container_main_size);
+	};
+}
+
+#endif //LITEHTML_FLEX_LINE_H