1 files changed, 48 insertions, 0 deletions
diff --git a/examples/dte/frame.h b/examples/dte/frame.h
new file mode 100644
index 0000000..022cf2b
--- /dev/null
+++ b/examples/dte/frame.h
@@ -0,0 +1,48 @@
+#ifndef FRAME_H
+#define FRAME_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include "util/macros.h"
+#include "util/ptr-array.h"
+#include "util/string.h"
+
+// A container for other Frames or Windows. Frames and Windows form
+// a tree structure, wherein Windows are the terminal (leaf) nodes.
+typedef struct Frame {
+    struct Frame *parent;
+    // Every frame contains either one window or multiple subframes
+    PointerArray frames;
+    struct Window *window;
+    int w; // Width
+    int h; // Height
+    bool vertical;
+    bool equal_size;
+} Frame;
+
+typedef enum {
+    RESIZE_DIRECTION_AUTO,
+    RESIZE_DIRECTION_HORIZONTAL,
+    RESIZE_DIRECTION_VERTICAL,
+} ResizeDirection;
+
+struct EditorState;
+
+Frame *new_root_frame(struct Window *window);
+void set_frame_size(Frame *frame, int w, int h);
+void equalize_frame_sizes(Frame *parent);
+void add_to_frame_size(Frame *frame, ResizeDirection dir, int amount);
+void resize_frame(Frame *frame, ResizeDirection dir, int size);
+void update_window_coordinates(Frame *frame);
+Frame *split_frame(struct Window *window, bool vertical, bool before);
+Frame *split_root_frame(struct EditorState *e, bool vertical, bool before);
+void remove_frame(struct EditorState *e, Frame *frame);
+void dump_frame(const Frame *frame, size_t level, String *str);
+
+#if DEBUG >= 1
+  void debug_frame(const Frame *frame);
+#else
+  static inline void debug_frame(const Frame* UNUSED_ARG(frame)) {}
+#endif
+
+#endif