Version 0.9

src/Scroller.cpp

@@ -0,0 +1,140 @@
+#include "Scroller.h"
+
+Scroller::Scroller(int max_loops)
+{
+  _max_loops = max_loops;
+}
+
+void Scroller::SetMatrix(Adafruit_NeoMatrix *matrix)
+{
+    this->_matrix = matrix;
+}
+
+int Scroller::GetNumberOfLines()
+{
+  return this->_nlines;
+}
+
+int Scroller::AddLine(String line)
+{
+    this->_Lines[this->_nlines] = line;
+    return _nlines++;
+}
+
+int Scroller::AddLines(String* lines,int nlines)
+{
+    for (int i=0; i < nlines; i++) {
+      _Lines[i] = lines[i];
+    }
+    _nlines = nlines;
+
+    return _nlines;
+}
+
+bool Scroller::ReplaceLine(int number,String line)
+{
+    _Lines[number] = line;
+    return true;
+}
+
+void Scroller::DeleteLines()
+{
+    _nlines = 0;
+}
+
+int Scroller::Scroll(int tick)
+{
+  int mx = 32;
+  String line;
+
+  line = _Lines[_lp];
+
+  if (line.length() * 6 > mx)
+  {
+    if (_x < line.length() * 6 - mx)
+    {
+      _matrix->fillScreen(0);
+      _matrix->setCursor(-_x, _y);
+      _matrix->setTextColor(_colors[1]);
+      _matrix->print(line);
+      _matrix->show();
+      if (_x++ == 0) {
+        return 3;
+      }
+      else {
+        return 1;
+      }
+    }
+    _lp++;
+    _x = 0;
+    return 10;
+  }
+  else
+  {
+    _matrix->fillScreen(0);
+    _matrix->setCursor(_x, _y);
+    _matrix->setTextColor(_colors[1]);
+    _matrix->print(line);
+    _matrix->show();
+    _lp++;
+    return 30;
+  }
+}
+
+bool Scroller::TurnOn()
+{
+  _off = false;
+  _lp = 0;
+  _x = 0;
+  _y = 0;
+  _nscrolled = 0;
+  _delayTicks = 0;
+
+  return true;
+}
+
+void Scroller::TurnOff()
+{
+  _matrix->fillScreen(0);
+  _matrix->print("");
+  _matrix->show();
+  _off = true;
+}
+
+void Scroller::SetColors(uint16_t *colors)
+{
+  _colors = colors;
+}
+
+void Scroller::loop(int tick)
+{
+  if (_off) return;
+
+  int delta = tick - _tick;
+
+  if (_lp == _nlines) {
+    _lp =0;
+    _nscrolled++;
+    _delayTicks = 50;
+  }
+
+  if (TimesScrolled() == _max_loops) {
+    TurnOff();
+    return;
+  } 
+
+  if (_delayTicks - delta <= 0) _delayTicks = Scroll(tick);
+  else _delayTicks -= delta;
+  
+  if (_delayTicks < 0) _delayTicks = 0;
+}
+
+int Scroller::TimesScrolled()
+{
+  return _nscrolled;
+}
+
+Scroller::~Scroller()
+{
+}
+