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[ES] Added showFile function

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Signed-óff-by: Jim Martens <github@2martens.de>
This commit is contained in:
Jim Martens
2015-07-04 13:11:14 +02:00
parent a3a21f3f1e
commit c496a3af44
1 changed files with 35 additions and 6 deletions
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41
es/blatt6/uebung6-1/uebung6-1.ino
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@ -113,6 +113,9 @@ unsigned char font[95][6] =
{ 0x10, 0x08, 0x08, 0x10, 0x08, 0x00 } // ~ { 0x10, 0x08, 0x08, 0x10, 0x08, 0x00 } // ~
}; };
// tmp vars
int readStringLength = 0;
void setup() void setup()
{ {
Serial.begin(9600); Serial.begin(9600);
@ -147,16 +150,16 @@ void setup()
void loop() void loop()
{ {
// write my data // write my data
printString(9, 33, "Jim"); printString(9, 33, "Jim", 3);
printString(19, 21, "Martens"); printString(19, 21, "Martens", 7);
printString(29, 21, "6420323"); printString(29, 21, "6420323", 7);
flushBuffer(); flushBuffer();
resetBuffer(); resetBuffer();
delay(5000); delay(5000);
// write his data // write his data
printString(9, 21, "Joachim"); printString(9, 21, "Joachim", 7);
printString(19, 6, "Schmidberger"); printString(19, 6, "Schmidberger", 12);
printString(29, 21, "6536496"); printString(29, 21, "6536496", 7);
flushBuffer(); flushBuffer();
resetBuffer(); resetBuffer();
delay(5000); delay(5000);
@ -330,6 +333,8 @@ const char* readString(File file)
} }
} }
readStringLength = i;
return result; return result;
} }
else { else {
@ -372,3 +377,27 @@ void handleCommand(String command)
showFile(parameter); showFile(parameter);
} }
} }
/**
* Shows the given file.
*
* @param String fileName
*/
void showFile(String fileName)
{
bool isTextFile = false;
int extPos = fileName.indexOf('.');
String ext = fileName.substring(extPos + 1);
isTextFile = (ext == "txt");
if (SD.exists(fileName)) {
File file = SD.open(fileName);
if (isTextFile) {
const char* text = readString(file);
printString(0, 0, text, readStringLength);
}
else {
// TODO handle image file
}
}
}