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ISSUE #10: Support for starting position on setDisplayToString() methods

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rjbatista@gmail.com
2011-12-15 23:02:04 +00:00
parent cff5d047bf
commit bb28428a44
3 changed files with 18 additions and 9 deletions
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3
CHANGES.txt
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@@ -1,3 +1,6 @@
- ISSUE #10: Support for starting position on setDisplayToString() methods.
WARNING: setDisplayToString methods have changed prototype and are incompatible with code compiled for 1.5.x (if you specified a custom font)
Version 1.5.2 Version 1.5.2
- ISSUE #9: Backwards compatibility with previous Arduino IDE. - ISSUE #9: Backwards compatibility with previous Arduino IDE.

18
TM1638.cpp
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@@ -124,22 +124,26 @@ void TM1638::clearDisplay()
} }
} }
void TM1638::setDisplayToString(const char* string, const byte dots, const byte font[]) void TM1638::setDisplayToString(const char* string, const byte dots, const byte pos, const byte font[])
{ {
for (int i = 0; i < 8; i++) { for (int i = 0; i < 8 - pos; i++) {
sendChar(i, font[string[i] - 32], dots & (1 << (7 - i))); if (string[i] != '\0') {
sendChar(i + pos, font[string[i] - 32], dots & (1 << (7 - i)));
} else {
break;
}
} }
} }
void TM1638::setDisplayToString(const String string, const byte dots, const byte font[]) void TM1638::setDisplayToString(const String string, const byte dots, const byte pos, const byte font[])
{ {
int stringLength = string.length(); int stringLength = string.length();
for (int i = 0; i < 8; i++) { for (int i = 0; i < 8 - pos; i++) {
if (i < stringLength) { if (i < stringLength) {
sendChar(i, font[string.charAt(i) - 32], dots & (1 << (7 - i))); sendChar(i + pos, font[string.charAt(i) - 32], dots & (1 << (7 - i)));
} else { } else {
sendChar(i, 0, dots & (1 << (7 - i))); break;
} }
} }
} }

6
TM1638.h
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@@ -60,9 +60,11 @@ class TM1638
/** Clear the display */ /** Clear the display */
void clearDisplay(); void clearDisplay();
/** Set the display to the string (defaults to built in font) */ /** Set the display to the string (defaults to built in font) */
void setDisplayToString(const char* string, const byte dots = 0, const byte font[] = FONT_DEFAULT); void setDisplayToString(const char* string, const byte dots = 0, const byte pos = 0,
const byte font[] = FONT_DEFAULT);
/** Set the display to the String (defaults to built in font) */ /** Set the display to the String (defaults to built in font) */
void setDisplayToString(String string, const byte dots = 0, const byte font[] = FONT_DEFAULT); void setDisplayToString(String string, const byte dots = 0, const byte pos = 0,
const byte font[] = FONT_DEFAULT);
/** Set the LED at pos to color (TM1638_COLOR_RED, TM1638_COLOR_GREEN or both) */ /** Set the LED at pos to color (TM1638_COLOR_RED, TM1638_COLOR_GREEN or both) */
virtual void setLED(byte color, byte pos); virtual void setLED(byte color, byte pos);