aboutsummaryrefslogtreecommitdiff
path: root/libraries/LiquidCrystal
diff options
context:
space:
mode:
authorDavid A. Mellis <d.mellis@arduino.cc>2008-05-07 18:24:49 +0000
committerDavid A. Mellis <d.mellis@arduino.cc>2008-05-07 18:24:49 +0000
commit4b2b39e383d7fec0f94deb0f9a75a493bce2d0ca (patch)
tree43c30ba64a83d21416e640cd532a5cd4198b4f55 /libraries/LiquidCrystal
parent2d5bc015fbd70befc08c2295630ff06770e9d7c8 (diff)
Changing Print class to use regular virtual write() function (instead of my hack
ed together version).
Diffstat (limited to 'libraries/LiquidCrystal')
-rwxr-xr-xlibraries/LiquidCrystal/LiquidCrystal.cpp18
-rwxr-xr-xlibraries/LiquidCrystal/LiquidCrystal.h8
2 files changed, 13 insertions, 13 deletions
diff --git a/libraries/LiquidCrystal/LiquidCrystal.cpp b/libraries/LiquidCrystal/LiquidCrystal.cpp
index c5acc85..b5f2cd4 100755
--- a/libraries/LiquidCrystal/LiquidCrystal.cpp
+++ b/libraries/LiquidCrystal/LiquidCrystal.cpp
@@ -26,7 +26,7 @@
LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3,
- uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) : Print(baseWrite),
+ uint8_t d4, uint8_t d5, uint8_t d6, uint8_t d7) :
_four_bit_mode(0), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable)
{
_data_pins[0] = d0;
@@ -52,7 +52,7 @@ LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
}
LiquidCrystal::LiquidCrystal(uint8_t rs, uint8_t rw, uint8_t enable,
- uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) : Print(baseWrite),
+ uint8_t d0, uint8_t d1, uint8_t d2, uint8_t d3) :
_four_bit_mode(1), _rs_pin(rs), _rw_pin(rw), _enable_pin(enable)
{
_data_pins[0] = d0;
@@ -91,11 +91,15 @@ void LiquidCrystal::setCursor(int col, int row)
command(0x80 | (col + row_offsets[row]));
}
-void LiquidCrystal::command(int value) {
- write(value, LOW);
+void LiquidCrystal::command(uint8_t value) {
+ send(value, LOW);
}
-void LiquidCrystal::write(int value, int mode) {
+void LiquidCrystal::write(uint8_t value) {
+ send(value, HIGH);
+}
+
+void LiquidCrystal::send(uint8_t value, uint8_t mode) {
digitalWrite(_rs_pin, mode);
digitalWrite(_rw_pin, LOW);
@@ -122,7 +126,3 @@ void LiquidCrystal::write(int value, int mode) {
digitalWrite(_enable_pin, LOW);
}
}
-
-void baseWrite(uint8_t value, void *instance) {
- ((LiquidCrystal *) instance)->write(value);
-}
diff --git a/libraries/LiquidCrystal/LiquidCrystal.h b/libraries/LiquidCrystal/LiquidCrystal.h
index c4746c5..a5edc5f 100755
--- a/libraries/LiquidCrystal/LiquidCrystal.h
+++ b/libraries/LiquidCrystal/LiquidCrystal.h
@@ -16,9 +16,11 @@ public:
void shiftDisplayLeft();
void shiftDisplayRight();
*/
- void write(int, int = 1);
- void command(int);
+ virtual void write(uint8_t);
+ void command(uint8_t);
private:
+ void send(uint8_t, uint8_t);
+
uint8_t _four_bit_mode;
uint8_t _rs_pin; // LOW: command. HIGH: character.
uint8_t _rw_pin; // LOW: write to LCD. HIGH: read from LCD.
@@ -26,6 +28,4 @@ private:
uint8_t _data_pins[8];
};
-void baseWrite(uint8_t, void *);
-
#endif