From 90c97c818577a3d3c245c06b7f25979741a008df Mon Sep 17 00:00:00 2001
From: Scott Lahteine <sourcetree@thinkyhead.com>
Date: Mon, 18 Apr 2016 19:45:55 -0700
Subject: [PATCH] Add _draw_axis_label function to reduce source

---
 Marlin/dogm_lcd_implementation.h              | 64 +++++++------------
 .../ultralcd_implementation_hitachi_HD44780.h | 61 ++++++------------
 2 files changed, 43 insertions(+), 82 deletions(-)

diff --git a/Marlin/dogm_lcd_implementation.h b/Marlin/dogm_lcd_implementation.h
index ee8bb88dd..3c49ffb8e 100644
--- a/Marlin/dogm_lcd_implementation.h
+++ b/Marlin/dogm_lcd_implementation.h
@@ -309,6 +309,23 @@ FORCE_INLINE void _draw_heater_status(int x, int heater) {
   }
 }
 
+FORCE_INLINE void _draw_axis_label(AxisEnum axis, const char *pstr, bool blink) {
+  if (blink)
+    lcd_printPGM(pstr);
+  else {
+    if (!axis_homed[axis])
+      lcd_printPGM(PSTR("?"));
+    else {
+      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
+        if (!axis_known_position[axis])
+          lcd_printPGM(PSTR(" "));
+        else
+      #endif
+      lcd_printPGM(pstr);
+    }
+  }
+}
+
 static void lcd_implementation_status_screen() {
   u8g.setColorIndex(1); // black on white
 
@@ -382,59 +399,22 @@ static void lcd_implementation_status_screen() {
     u8g.drawBox(0, 30, LCD_PIXEL_WIDTH, 9);
   #endif
   u8g.setColorIndex(0); // white on black
+
   u8g.setPrintPos(2, XYZ_BASELINE);
-  if (blink)
-    lcd_printPGM(PSTR(MSG_X));
-  else {
-    if (!axis_homed[X_AXIS])
-      lcd_printPGM(PSTR("?"));
-    else {
-      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-        if (!axis_known_position[X_AXIS])
-          lcd_printPGM(PSTR(" "));
-        else
-      #endif
-      lcd_printPGM(PSTR(MSG_X));
-    }
-  }
+  _draw_axis_label(X_AXIS, PSTR(MSG_X), blink);
   u8g.setPrintPos(10, XYZ_BASELINE);
   lcd_print(ftostr4sign(current_position[X_AXIS]));
 
   u8g.setPrintPos(43, XYZ_BASELINE);
-  if (blink)
-    lcd_printPGM(PSTR(MSG_Y));
-  else {
-    if (!axis_homed[Y_AXIS])
-      lcd_printPGM(PSTR("?"));
-    else {
-      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-        if (!axis_known_position[Y_AXIS])
-          lcd_printPGM(PSTR(" "));
-        else
-      #endif
-      lcd_printPGM(PSTR(MSG_Y));
-    }
-  }
+  _draw_axis_label(Y_AXIS, PSTR(MSG_Y), blink);
   u8g.setPrintPos(51, XYZ_BASELINE);
   lcd_print(ftostr4sign(current_position[Y_AXIS]));
 
   u8g.setPrintPos(83, XYZ_BASELINE);
-  if (blink)
-    lcd_printPGM(PSTR(MSG_Z));
-  else {
-    if (!axis_homed[Z_AXIS])
-      lcd_printPGM(PSTR("?"));
-    else {
-      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-        if (!axis_known_position[Z_AXIS])
-          lcd_printPGM(PSTR(" "));
-        else
-      #endif
-      lcd_printPGM(PSTR(MSG_Z));
-    }
-  }
+  _draw_axis_label(Z_AXIS, PSTR(MSG_Z), blink);
   u8g.setPrintPos(91, XYZ_BASELINE);
   lcd_print(ftostr32sp(current_position[Z_AXIS] + 0.00001));
+
   u8g.setColorIndex(1); // black on white
 
   // Feedrate
diff --git a/Marlin/ultralcd_implementation_hitachi_HD44780.h b/Marlin/ultralcd_implementation_hitachi_HD44780.h
index 3164f45a2..3787db01b 100644
--- a/Marlin/ultralcd_implementation_hitachi_HD44780.h
+++ b/Marlin/ultralcd_implementation_hitachi_HD44780.h
@@ -569,6 +569,23 @@ unsigned lcd_print(char c) { return charset_mapper(c); }
 
 #endif // SHOW_BOOTSCREEN
 
+FORCE_INLINE void _draw_axis_label(AxisEnum axis, const char *pstr, bool blink) {
+  if (blink)
+    lcd_printPGM(pstr);
+  else {
+    if (!axis_homed[axis])
+      lcd_printPGM(PSTR("?"));
+    else {
+      #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
+        if (!axis_known_position[axis])
+          lcd_printPGM(PSTR(" "));
+        else
+      #endif
+      lcd_printPGM(pstr);
+    }
+  }
+}
+
 /**
 Possible status screens:
 16x2   |000/000 B000/000|
@@ -692,36 +709,12 @@ static void lcd_implementation_status_screen() {
         // When axis is homed but axis_known_position is false the axis letters are blinking 'X' <-> ' '.
         // When everything is ok you see a constant 'X'.
 
-        if (blink)
-          lcd_printPGM(PSTR(MSG_X));
-        else {
-          if (!axis_homed[X_AXIS])
-            lcd_printPGM(PSTR("?"));
-          else
-            #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-              if (!axis_known_position[X_AXIS])
-                lcd_printPGM(PSTR(" "));
-              else
-            #endif
-            lcd_printPGM(PSTR(MSG_X));
-        }
-
+        _draw_axis_label(X_AXIS, PSTR(MSG_X), blink);
         lcd.print(ftostr4sign(current_position[X_AXIS]));
 
         lcd_printPGM(PSTR(" "));
-        if (blink)
-          lcd_printPGM(PSTR(MSG_Y));
-        else {
-          if (!axis_homed[Y_AXIS])
-            lcd_printPGM(PSTR("?"));
-          else
-            #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-              if (!axis_known_position[Y_AXIS])
-                lcd_printPGM(PSTR(" "));
-              else
-            #endif
-            lcd_printPGM(PSTR(MSG_Y));
-        }
+
+        _draw_axis_label(Y_AXIS, PSTR(MSG_Y), blink);
         lcd.print(ftostr4sign(current_position[Y_AXIS]));
 
       #endif // EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
@@ -729,19 +722,7 @@ static void lcd_implementation_status_screen() {
     #endif // LCD_WIDTH >= 20
 
     lcd.setCursor(LCD_WIDTH - 8, 1);
-    if (blink)
-      lcd_printPGM(PSTR(MSG_Z));
-    else {
-      if (!axis_homed[Z_AXIS])
-        lcd_printPGM(PSTR("?"));
-      else
-        #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING)
-          if (!axis_known_position[Z_AXIS])
-            lcd_printPGM(PSTR(" "));
-          else
-        #endif
-        lcd_printPGM(PSTR(MSG_Z));
-    }
+    _draw_axis_label(Z_AXIS, PSTR(MSG_Z), blink);
     lcd.print(ftostr32sp(current_position[Z_AXIS] + 0.00001));
 
   #endif // LCD_HEIGHT > 2