add chart block

Author: toddtreece

src/AdafruitIO_Dashboard.cpp

@@ -83,3 +83,8 @@ TextBlock* AdafruitIO_Dashboard::addTextBlock(AdafruitIO_Feed *feed)
 {
   return new TextBlock(this, feed);
 }
+
+ChartBlock* AdafruitIO_Dashboard::addChartBlock(AdafruitIO_Feed *feed)
+{
+  return new ChartBlock(this, feed);
+}

src/AdafruitIO_Dashboard.h

@@ -19,6 +19,7 @@
 #include "blocks/SliderBlock.h"
 #include "blocks/GaugeBlock.h"
 #include "blocks/TextBlock.h"
+#include "blocks/ChartBlock.h"
 
 // forward declaration
 class AdafruitIO;
@@ -40,6 +41,7 @@ class AdafruitIO_Dashboard {
     SliderBlock* addSliderBlock(AdafruitIO_Feed *feed);
     GaugeBlock* addGaugeBlock(AdafruitIO_Feed *feed);
     TextBlock* addTextBlock(AdafruitIO_Feed *feed);
+    ChartBlock* addChartBlock(AdafruitIO_Feed *feed);
 
   private:
     AdafruitIO *_io;

src/blocks/ChartBlock.cpp

@@ -0,0 +1,41 @@
+//
+// Adafruit invests time and resources providing this open source code.
+// Please support Adafruit and open source hardware by purchasing
+// products from Adafruit!
+//
+// Copyright (c) 2015-2016 Adafruit Industries
+// Authors: Tony DiCola, Todd Treece
+// Licensed under the MIT license.
+//
+// All text above must be included in any redistribution.
+//
+#include "ChartBlock.h"
+
+ChartBlock::ChartBlock(AdafruitIO_Dashboard *d, AdafruitIO_Feed *f) : AdafruitIO_Block(d, f)
+{
+  historyHours = 0;
+  xAxisLabel = "X";
+  yAxisLabel = "Y";
+  yAxisMin = 0;
+  yAxisMax = 100;
+}
+
+ChartBlock::~ChartBlock(){}
+
+String ChartBlock::properties()
+{
+
+  String props = "{\"historyHours\":\"";
+  props += historyHours;
+  props += "\",\"xAxisLabel\":";
+  props += xAxisLabel;
+  props += "\",\"yAxisLabel\":";
+  props += yAxisLabel;
+  props += "\",\"yAxisMin\":";
+  props += yAxisMin;
+  props += "\",\"yAxisMax\":";
+  props += yAxisMax;
+  props += "\"}";
+
+  return props;
+}

src/blocks/ChartBlock.h

@@ -0,0 +1,36 @@
+//
+// Adafruit invests time and resources providing this open source code.
+// Please support Adafruit and open source hardware by purchasing
+// products from Adafruit!
+//
+// Copyright (c) 2015-2016 Adafruit Industries
+// Authors: Tony DiCola, Todd Treece
+// Licensed under the MIT license.
+//
+// All text above must be included in any redistribution.
+//
+#ifndef ADAFRUITIO_CHARTBLOCK_H
+#define ADAFRUITIO_CHARTBLOCK_H
+
+#include "AdafruitIO_Block.h"
+
+class ChartBlock : public AdafruitIO_Block {
+
+  public:
+    ChartBlock(AdafruitIO_Dashboard *d, AdafruitIO_Feed *f);
+    ~ChartBlock();
+
+    int historyHours;
+    const char *xAxisLabel;
+    const char *yAxisLabel;
+    int yAxisMin;
+    int yAxisMax;
+
+    String properties();
+
+  private:
+    const char *_visual_type = "line_chart";
+
+};
+
+#endif // ADAFRUITIO_CHARTBLOCK_H