u8x8 lc procedures

cppsrc/U8x8lib.h

@@ -22,7 +22,9 @@ class U8X8 : public Print
   protected:
     u8x8_t u8x8;
   public:
-    U8X8(void) {}  
+    uint8_t tx, ty;
+  
+    U8X8(void) { home(); }
     u8x8_t *getU8x8(void) { return &u8x8; }
 
     void drawTile(uint8_t x, uint8_t y, uint8_t cnt, uint8_t *tile_ptr) {
@@ -46,6 +48,9 @@ class U8X8 : public Print
     void setContrast(uint8_t value) {
       u8x8_SetContrast(&u8x8, value); }
 
+    void setInverseFont(uint8_t value) {
+      u8x8_SetInverseFont(&u8x8, value); }
+
     void setFont(const uint8_t *font_8x8) {
       u8x8_SetFont(&u8x8, font_8x8); }
 
@@ -62,8 +67,24 @@ class U8X8 : public Print
       return u8x8_GetUTF8Len(&u8x8, s); }
     
     size_t write(uint8_t v) {
+      u8x8_DrawGlyph(&u8x8, tx, ty, v);
+      tx++;
+      return 1;
      }
-      
+     
+     void inverse(void) { u8x8_SetInverseFont(&u8x8, 1); }
+     void noInverse(void) { u8x8_SetInverseFont(&u8x8, 0); }
+     
+     /* LiquidCrystal compatible functions */
+    void home(void) { tx = 0; ty = 0; }
+    void clear(void) { clearScreen(); home(); }
+    void noDisplay(void) { u8x8_SetPowerSave(&u8x8, 1); }
+    void display(void) { u8x8_SetPowerSave(&u8x8, 0); }
+    void setCursor(uint8_t x, uint8_t y) { tx = x; ty = y; }
+ 
+    void noCursor(void) {}
+    void cursor(void) {}
+        
 };
 
 // constructor list start

csrc/u8x8.h

@@ -206,6 +206,7 @@ struct u8x8_struct
   const uint8_t *font;
   u8x8_char_cb char_cb;		/*  procedure, which will be used to get the next char from the string */
   uint8_t x_offset;	/* copied from info struct, can be modified in flip mode */
+  uint8_t is_font_inverse_mode; 	/* 0: normal, 1: font glyphs are inverted */
   uint8_t i2c_started;	/* for i2c interface */
 #ifdef U8X8_USE_PINS 
   uint8_t pins[U8X8_PIN_CNT];	/* defines a pinlist: Mainly a list of pins for the Arduino Envionment, use U8X8_PIN_xxx to access */
@@ -558,6 +559,8 @@ void u8x8_DrawGlyph(u8x8_t *u8x8, uint8_t x, uint8_t y, uint8_t encoding);
 uint8_t u8x8_DrawString(u8x8_t *u8x8, uint8_t x, uint8_t y, const char *s);
 uint8_t u8x8_DrawUTF8(u8x8_t *u8x8, uint8_t x, uint8_t y, const char *s);
 uint8_t u8x8_GetUTF8Len(u8x8_t *u8x8, const char *s);
+#define u8x8_SetInverseFont(u8x8, b) (u8x8)->is_font_inverse_mode = (b)
+
 
 /*==========================================*/
 /* start font list */

csrc/u8x8_8x8.c

@@ -43,6 +43,13 @@ void u8x8_DrawGlyph(u8x8_t *u8x8, uint8_t x, uint8_t y, uint8_t encoding)
       buf[i] = 0;
     }
   }
+  if ( u8x8->is_font_inverse_mode )
+  {
+    for( i = 0; i < 8; i++ )
+    {
+      buf[i] ^= 255;
+    }
+  }
   u8x8_DrawTile(u8x8, x, y, 1, buf);
 }
 

csrc/u8x8_setup.c

@@ -27,6 +27,7 @@ void u8x8_SetupDefaults(u8x8_t *u8x8)
     u8x8->cad_cb = u8x8_dummy_cb;
     u8x8->byte_cb = u8x8_dummy_cb;
     u8x8->gpio_and_delay_cb = u8x8_dummy_cb;
+    u8x8->is_font_inverse_mode = 0;
   
 #ifdef U8X8_USE_PINS 
   {

sys/arduino/HelloWorld/HelloWorld.ino

@@ -3,7 +3,7 @@
 
 #include <U8x8lib.h>
 
-//U8X8_SSD1306_128X64_4W_SW_SPI u8x8(/* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
+U8X8_SSD1306_128X64_4W_SW_SPI u8x8(/* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8X8_SSD1306_128X64_4W_HW_SPI u8x8(/* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
 //U8X8_SSD1306_128X64_3W_SW_SPI u8x8(/* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
 //U8X8_SSD1306_128X64_6800 u8x8(13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);