Diff: GraphScale.cpp

Revision:

0:9ed7238d49e2

Child:

2:81fc8f80fdb4

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GraphScale.cpp	Tue Feb 16 11:35:36 2016 +0000
@@ -0,0 +1,29 @@
+#include "GraphScale.h"
+
+GraphScale::GraphScale(SPI_TFT_ILI9341 * tft, int x, int y, int width, int height, int min, int max, int scaleSteps)
+    : tft_(tft), x_(x), y_(y), width_(width), height_(height), min_(min), max_(max), scaleSteps_(scaleSteps)
+{   
+}
+
+void GraphScale::draw(int color)
+{
+    int x1 = x_-1;
+    int x2 = x_+width_+1;
+    int y1 = y_-1;
+    int y2 = y_+height_+1;
+    
+    tft_->rect(x1, y1, x2, y2, color);
+    
+    int stepsize = height_ / ((max_-min_) / scaleSteps_);
+    int stepposition = min_;
+      
+    for(uint16_t i = 0; i <= height_; i += stepsize)
+    {       
+        uint16_t yPos = y2-i-1;
+        tft_->line(x2, yPos, x2+5, yPos, color);
+        tft_->locate(x2+10,yPos-6);
+        tft_->printf("%d",stepposition);
+        
+        stepposition += scaleSteps_;
+    }
+}
\ No newline at end of file