1 files changed, 79 insertions, 0 deletions
diff --git a/src/ui/root.c b/src/ui/root.c
new file mode 100644
index 0000000..26ca0ac
--- /dev/null
+++ b/src/ui/root.c
@@ -0,0 +1,79 @@
+#include <assert.h>
+
+#include "ui.internal.h"
+
+/* top margin for menu bar */
+#define UI__ROOT_MARGIN_TOP    (1)
+
+/* bottom margin for status bar */
+#define UI__ROOT_MARGIN_BOTTOM (1)
+
+#define UI__ROOT_MARGIN_LEFT   (0)
+#define UI__ROOT_MARGIN_RIGHT  (0)
+
+const char *ui__status_text = NULL;
+
+WINDOW *ui__root_place_content_window(struct ui_window_root *root)
+{
+  int maxy, maxx;
+  int begy, begx;
+  getmaxyx(root->super.cwindow, maxy, maxx);
+  getbegyx(root->super.cwindow, begy, begx);
+
+  begy += UI__ROOT_MARGIN_TOP;
+  maxy -= UI__ROOT_MARGIN_TOP + UI__ROOT_MARGIN_BOTTOM;
+
+  begx += UI__ROOT_MARGIN_LEFT;
+  begx -= UI__ROOT_MARGIN_LEFT + UI__ROOT_MARGIN_RIGHT;
+
+  return newwin(maxy, maxx, begy, begx);
+}
+
+void ui__root_draw_proc(struct ui_window_base *base)
+{
+  struct ui_window_root *root = ui__cast(root, base);
+
+  attron(A_REVERSE);
+  mvwhline(base->cwindow, 0, 0, ' ', getmaxx(base->cwindow));
+  mvwhline(base->cwindow, getmaxy(base->cwindow)-1, 0, ' ', getmaxx(base->cwindow));
+
+  if (ui__status_text) {
+    mvwprintw(base->cwindow, getmaxy(base->cwindow)-1, 1, "Status: %s", ui__status_text);
+  }
+
+  attroff(A_REVERSE);
+
+  wnoutrefresh(base->cwindow);
+
+  if (root->content) {
+    ui__call_draw_proc(root->content);
+  }
+
+  if (root->floating) {
+    ui__call_draw_proc(root->floating);
+  }
+
+  doupdate();
+}
+
+void ui__root_layout_proc(struct ui_window_base *base)
+{
+  struct ui_window_root *root = ui__cast(root, base);
+
+  if (root->content) {
+    delwin(root->content->cwindow);
+    root->content->cwindow = ui__root_place_content_window(root);
+    ui__call_layout_proc(root->content);
+  }
+}
+
+void ui__root_set_content(struct ui_window_root *root, struct ui_window_base *window)
+{
+  assert(!window->parent);
+  assert(!window->cwindow);
+  assert(!root->content);
+
+  window->cwindow = ui__root_place_content_window(root);
+  root->content = window;
+  window->parent = ui__cast(base, root);
+}