proper console display (move code out of conky.cc)

src/conky.cc

@@ -201,8 +201,6 @@ int top_cpu, top_mem, top_time;
 int top_io;
 #endif
 int top_running;
-static conky::simple_config_setting<bool> extra_newline("extra_newline", false,
-                                                        false);
 
 /* Update interval */
 conky::range_config_setting<double> update_interval(
@@ -1075,15 +1073,6 @@ static void draw_string(const char *s) {
 #ifdef BUILD_X11
   width_of_s = get_string_width(s);
 #endif /* BUILD_X11 */
-  if (out_to_stdout.get(*state) && draw_mode == FG) {
-    printf("%s\n", s);
-    if (extra_newline.get(*state)) { fputc('\n', stdout); }
-    fflush(stdout); /* output immediately, don't buffer */
-  }
-  if (out_to_stderr.get(*state) && draw_mode == FG) {
-    fprintf(stderr, "%s\n", s);
-    fflush(stderr); /* output immediately, don't buffer */
-  }
   if (draw_mode == FG && (overwrite_fpointer != nullptr)) {
     fprintf(overwrite_fpointer, "%s\n", s);
   }

src/display-console.cc

@@ -34,6 +34,9 @@
 #include <sstream>
 #include <unordered_map>
 
+static conky::simple_config_setting<bool> extra_newline("extra_newline", false,
+                                                        false);
+
 namespace conky {
 namespace {
 
@@ -63,4 +66,16 @@ bool display_output_console::initialize() { return true; }
 
 bool display_output_console::shutdown() { return true; }
 
+void display_output_console::draw_string(const char *s, int w) {
+  if (out_to_stdout.get(*state)) {
+    printf("%s\n", s);
+    if (extra_newline.get(*state)) { fputc('\n', stdout); }
+    fflush(stdout); /* output immediately, don't buffer */
+  }
+  if (out_to_stderr.get(*state)) {
+    fprintf(stderr, "%s\n", s);
+    fflush(stderr); /* output immediately, don't buffer */
+  }
+}
+
 }  // namespace conky

src/display-console.hh

@@ -47,6 +47,8 @@ class display_output_console : public display_output_base {
   virtual bool initialize();
   virtual bool shutdown();
 
+  virtual void draw_string(const char *s, int w);
+
   // console-specific
 };