Dai Yokota
Using std::ostream with TextLCD
Dependencies: ACM1602NI TextLCD
Dependents: TextLCD_ostream_sample
This is class library inherited std::ostream for TextLCD
Because a large amount of memory is needed, do not work in low memory MPU
Sample program is here. And notebook page is here (sorry notebook page is only in Japanese)
Revision 0:4ba062d3d524, committed 2016-06-18
- Comitter:
- jk1lot
- Date:
- Sat Jun 18 08:57:07 2016 +0000
- Child:
- 1:e46139d4b8ba
- Commit message:
- 1st version
Changed in this revision
| TextLCD_ostream.cpp | Show annotated file Show diff for this revision Revisions of this file |
| TextLCD_ostream.h | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD_ostream.cpp Sat Jun 18 08:57:07 2016 +0000
@@ -0,0 +1,30 @@
+#include "TextLCD_ostream.h"
+
+int lcd_streambuf::overflow(int c)
+{
+ if( c != EOF ) _lcd->putc(c);
+ return c;
+}
+
+lcd_ostream::lcd_ostream(TextLCD_Base *lcd) : std::ostream( lcd_buf )
+{
+ _lcd=lcd;
+ lcd_buf = new lcd_streambuf(lcd);
+}
+
+lcd_ostream::~lcd_ostream()
+{
+ delete lcd_buf;
+}
+
+lcd_ostream& lcd_ostream::locate(int column, int row)
+{
+ _lcd->locate(column,row);
+ return *this;
+}
+
+lcd_ostream& lcd_ostream::cls()
+{
+ _lcd->cls();
+ return *this;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/TextLCD_ostream.h Sat Jun 18 08:57:07 2016 +0000
@@ -0,0 +1,29 @@
+#ifndef TEXTLCD_OSTREAM_H
+#define TEXTLCD_OSTREAM_H
+
+#include "TextLCD.h"
+#include<iostream>
+#include<fstream>
+#include <streambuf>
+
+class lcd_streambuf : public std::streambuf {
+public:
+ lcd_streambuf(TextLCD_Base *lcd) : _lcd(lcd) {}
+ virtual int overflow( int c = EOF );
+private:
+ TextLCD_Base *_lcd;
+};
+
+class lcd_ostream : public std::ostream {
+public:
+ lcd_ostream(TextLCD_Base *lcd);
+ virtual ~lcd_ostream();
+ lcd_ostream& locate(int column, int row);
+ lcd_ostream& cls();
+private:
+ TextLCD_Base *_lcd;
+ lcd_streambuf *lcd_buf;
+};
+inline lcd_ostream& cls(lcd_ostream& s) {s.cls(); return s;} //manipulator
+
+#endif
\ No newline at end of file