ui: Print empty rows when clearing table

Fill table with empty rows while clearing.

It will allow to get rid of clear() & refresh() each time
before print the flows list.

Signed-off-by: Vadim Kochan <vadim4j@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>

2 files changed, 15 insertions, 1 deletions

diff --git a/ui.c b/ui.c
index 5e52efd..46062d4 100644
--- a/ui.c
+++ b/ui.c
@@ -16,6 +16,7 @@ void ui_table_init(struct ui_table *tbl)
 
 	tbl->rows_y  = tbl->y;
 	tbl->width   = COLS;
+	tbl->height  = LINES - 2;
 	tbl->col_pad = 1;
 
 	INIT_LIST_HEAD(&tbl->cols);
@@ -94,7 +95,13 @@ void ui_table_row_add(struct ui_table *tbl)
 
 void ui_table_clear(struct ui_table *tbl)
 {
+	int y;
+
 	tbl->rows_y = tbl->y;
+
+	for (y = tbl->y + 1; y < tbl->y + tbl->height; y++) {
+		mvprintw(y, tbl->x, "%*s", tbl->width, " ");
+	}
 }
 
 #define UI_ALIGN_COL(col) (((col)->align == UI_ALIGN_LEFT) ? "%-*.*s" : "%*.*s")
@@ -120,6 +127,11 @@ void ui_table_header_color_set(struct ui_table *tbl, int color)
 	tbl->hdr_color = color;
 }
 
+void ui_table_height_set(struct ui_table *tbl, int height)
+{
+	tbl->height = height;
+}
+
 void ui_table_header_print(struct ui_table *tbl)
 {
 	struct ui_col *col;
diff --git a/ui.h b/ui.h
index 52e6f5a..ff55606 100644
--- a/ui.h
+++ b/ui.h
@@ -29,12 +29,14 @@ struct ui_table {
 	int hdr_color;
 	int col_pad;
 	int width;
+	int height;
 };
 
 extern void ui_table_init(struct ui_table *tbl);
 extern void ui_table_uninit(struct ui_table *tbl);
-extern void ui_table_pos_set(struct ui_table *tbl, int y, int x);
 extern void ui_table_clear(struct ui_table *tbl);
+extern void ui_table_pos_set(struct ui_table *tbl, int y, int x);
+extern void ui_table_height_set(struct ui_table *tbl, int height);
 
 extern void ui_table_col_add(struct ui_table *tbl, uint32_t id, char *name,
 			     uint32_t len);