Diff: MyClasses/WaveformDisplay.cpp

Revision:

0:e2c6c8630aab

Child:

2:afff5ec35233

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/MyClasses/WaveformDisplay.cpp	Sun Jul 24 11:33:55 2016 +0000
@@ -0,0 +1,57 @@
+//-----------------------------------------------------------
+//  Class for waveform display
+//
+//  2016/07/23, Copyright (c) 2016 MIKAMI, Naoki
+//-----------------------------------------------------------
+
+#include "WaveformDisplay.hpp"
+
+namespace Mikami
+{
+    void WaveformDisplay::Execute()
+    {
+        static const uint16_t LIMIT1 = Y0_ + LIMIT2_;
+        static const uint16_t LIMIT2 = Y0_ - LIMIT2_;
+        Axis();
+        lcd_->SetTextColor(LINE_COLOR_);
+        uint16_t x1 = X0_;
+        uint16_t y1 = Clip(xn_[0]);
+        for (int n=1; n<N_DATA_; n++)
+        {
+            uint16_t x2 = X0_ + n;
+            uint16_t y2 = Clip(xn_[n]);
+            if ( ((y2 == LIMIT1) && (y1 == LIMIT1)) ||
+                 ((y2 == LIMIT2) && (y1 == LIMIT2)) )
+            {   // Out of displaying boundaries
+                lcd_->SetTextColor(LCD_COLOR_RED);
+                lcd_->DrawHLine(x1, y1, 1);
+                lcd_->SetTextColor(LINE_COLOR_);
+            }
+            else
+                lcd_->DrawLine(x1, y1, x2, y2);
+            if ((y1 == LIMIT1) || (y1 == LIMIT2))
+                lcd_->DrawPixel(x1, y1, LCD_COLOR_RED);
+            x1 = x2;
+            y1 = y2;
+        }
+        lcd_->SetTextColor(BACK_COLOR_);
+    }
+        
+    // Clipping
+    uint16_t WaveformDisplay::Clip(int16_t xn)
+    {
+        int16_t x = xn >> R_SHIFT_;
+        if (x >  LIMIT_ ) x =  LIMIT2_;
+        if (x < -LIMIT_ ) x = -LIMIT2_ ;
+        return Y0_ - x;
+    }
+
+    void WaveformDisplay::Axis()
+    {
+        lcd_->SetTextColor(BACK_COLOR_);
+        lcd_->FillRect(X0_, Y0_-LIMIT2_, N_DATA_, LIMIT2_*2+1);
+
+        lcd_->SetTextColor(AXIS_COLOR_);
+        lcd_->DrawLine(X0_-5, Y0_, X0_+N_DATA_+5, Y0_);
+    }        
+}