Renamed print->write, added some more fflush()es, converted some macros

into proper functions.

Lua/lbtui.c

@@ -82,7 +82,7 @@ static int Lbtui_getkey(lua_State *L)
     return 1;
 }
 
-static int Lbtui_print(lua_State *L)
+static int Lbtui_write(lua_State *L)
 {
     btui_t **bt = (btui_t**)lua_touserdata(L, 1);
     if (bt == NULL) luaL_error(L, "Not a BTUI object");
@@ -445,7 +445,7 @@ static const luaL_Reg Rclass_metamethods[] =
     {"disable",         Lbtui_disable},
     {"withdisabled",    Lbtui_withdisabled},
     {"getkey",          Lbtui_getkey},
-    {"print",           Lbtui_print},
+    {"write",           Lbtui_write},
     {"clear",           Lbtui_clear},
     {"flush",           Lbtui_flush},
     {"move",            Lbtui_move},

Lua/test.lua

@@ -6,7 +6,7 @@ btui(function(bt)
     while key ~= "q" and key ~= "Ctrl-c" do
         if key == "?" then
             bt:withdisabled(function()
-                io.write("OK? ")
+                io.write("Press enter to continue.")
                 io.flush()
                 io.read()
             end)
@@ -19,7 +19,7 @@ btui(function(bt)
         bt:withfg(.8,.95,.2, function()
             bt:linebox(x, y, 30, 1);
             bt:move(x, y)
-            bt:print("Pressed: ", key)
+            bt:write("Pressed: ", key)
         end)
 
         bt:withattributes("bg_blue", "fg_black", function()
@@ -29,12 +29,14 @@ btui(function(bt)
             bt:fillbox(center-2, 0, w+4, 3)
             bt:shadow(center-2, 0, w+4, 3)
             bt:move(center, 1)
-            bt:print(title)
+            bt:write(title)
         end)
 
-        local s = ("Size: (%dx%d)"):format(bt:width(), bt:height())
-        bt:move(bt:width()-#s, bt:height()-1)
-        bt:print(s)
+        bt:withattributes("faint", function()
+            local s = ("Size: (%dx%d)"):format(bt:width(), bt:height())
+            bt:move(bt:width()-#s, bt:height()-1)
+            bt:write(s)
+        end)
 
         local mouse_x, mouse_y
         key, mouse_x, mouse_y = bt:getkey()

README.md

@@ -131,7 +131,7 @@ before the error is printed. Here's a simple example program:
     bt:disable() -- Disables btui
     bt:withdisabled(fn) -- Calls "fn" with btui disabled, then re-enables btui
     bt:getkey(timeout=-1) -- Returns a keypress (and optionally, mouse x and y coordinates). The optional timeout argument specifies how long, in tenths of a second, to wait for the next keypress.
-    bt:print() -- Print text to the terminal
+    bt:write() -- Write text to the terminal
     bt:clear(type="screen") -- Clear the terminal. Options are: "screen", "right", "left", "above", "below", "line"
     bt:flush() -- Flush the terminal output. Most operations do this anyways.
     bt:move(x, y) -- Move the cursor to the given position. (0,0) is the top left corner.

btui.h

@@ -39,19 +39,19 @@ int btui_set_fg(btui_t *bt, unsigned char r, unsigned char g, unsigned char b);
 int btui_set_bg(btui_t *bt, unsigned char r, unsigned char g, unsigned char b);
 int btui_set_fg_hex(btui_t *bt, int hex);
 int btui_set_bg_hex(btui_t *bt, int hex);
-#define btui_printf(bt, ...) fprintf((bt)->out, __VA_ARGS__)
-#define btui_puts(bt, s) fputs(s, (bt)->out)
-#define btui_flush(bt) fflush((bt)->out)
+void btui_draw_linebox(btui_t *bt, int x, int y, int w, int h);
+void btui_fill_box(btui_t *bt, int x, int y, int w, int h);
+void btui_draw_shadow(btui_t *bt, int x, int y, int w, int h);
+int btui_puts(btui_t *bt, const char *s);
+int btui_flush(btui_t *bt);
+int btui_suspend(btui_t *bt);
 #define btui_clear_below(bt) fputs("\033[J", (bt)->out)
 #define btui_clear_above(bt) fputs("\033[1J", (bt)->out)
 #define btui_clear_screen(bt) fputs("\033[2J", (bt)->out)
 #define btui_clear_right(bt) fputs("\033[K", (bt)->out)
 #define btui_clear_left(bt) fputs("\033[1K", (bt)->out)
 #define btui_clear_line(bt) fputs("\033[2K", (bt)->out)
-#define btui_suspend(bt) kill(getpid(), SIGTSTP)
-void btui_draw_linebox(btui_t *bt, int x, int y, int w, int h);
-void btui_fill_box(btui_t *bt, int x, int y, int w, int h);
-void btui_draw_shadow(btui_t *bt, int x, int y, int w, int h);
+#define btui_printf(bt, ...) fprintf((bt)->out, __VA_ARGS__)
 
 static btui_t current_bt;
 
@@ -614,6 +614,7 @@ void btui_draw_linebox(btui_t *bt, int x, int y, int w, int h)
     for (int i = 0; i < w; i++)
        fputc('q', bt->out);
     fputs("j\033(B", bt->out);
+    fflush(bt->out);
 }
 
 void btui_fill_box(btui_t *bt, int x, int y, int w, int h)
@@ -626,6 +627,7 @@ void btui_fill_box(btui_t *bt, int x, int y, int w, int h)
             fputc(' ', bt->out);
         }
     }
+    fflush(bt->out);
 }
 
 void btui_draw_shadow(btui_t *bt, int x, int y, int w, int h)
@@ -640,6 +642,25 @@ void btui_draw_shadow(btui_t *bt, int x, int y, int w, int h)
         fputc('a', bt->out);
     }
     fputs("\033(B", bt->out);
+    fflush(bt->out);
+}
+
+int btui_puts(btui_t *bt, const char *s)
+{
+    int ret = fputs(s, bt->out);
+    fflush(bt->out);
+    return ret;
+}
+
+int btui_flush(btui_t *bt)
+{
+    return fflush(bt->out);
+}
+
+int btui_suspend(btui_t *bt)
+{
+    (void)bt;
+    return kill(getpid(), SIGTSTP);
 }
 
 #endif