Diff: TextDisplay.cpp

Revision:

2:8596e06f241f

Parent:

1:18c56f038905

--- a/TextDisplay.cpp	Sat Jan 15 16:02:56 2011 +0000
+++ b/TextDisplay.cpp	Wed Jan 26 21:56:12 2011 +0000
@@ -8,6 +8,12 @@
 TextDisplay::TextDisplay(const char *name) : Stream(name) {
     _row = 0;
     _column = 0;
+    if (name == NULL) {
+        _path = NULL;
+    } else {
+        _path = new char[strlen(name) + 2];
+        sprintf(_path, "/%s", name);
+    }
 }
 
 int TextDisplay::_putc(int value) {
@@ -55,3 +61,17 @@
 void TextDisplay::background(uint32_t colour) {
     _background = colour;
 }
+
+bool TextDisplay::claim (FILE *stream) {
+    if ( _path == NULL) {
+        fprintf(stderr, "claim requires a name to be given in the instantioator of the TextDisplay instance!\r\n");
+        return false;
+    }
+    if (freopen(_path, "w", stream) == NULL) {
+        // Failed, should not happen
+        return false;
+    }
+    // make sure we use line buffering
+    setvbuf(stdout, NULL, _IOLBF, columns());
+    return true;
+}
\ No newline at end of file