From b36e00d2a5f2d126242e28c8f35897e2a7e07be0 Mon Sep 17 00:00:00 2001
From: Mohammad Aljammal <Mohammad.Al-Jammal@cloudsolutions.com.sa>
Date: Tue, 16 Mar 2021 10:00:47 +0200
Subject: [PATCH] fix the line chart issues

---
 .../medical/vital_sign/LineChartCurved.dart   | 91 +++++++++++++------
 .../LineChartCurvedBloodPressure.dart         |  4 +-
 2 files changed, 67 insertions(+), 28 deletions(-)

diff --git a/lib/pages/medical/vital_sign/LineChartCurved.dart b/lib/pages/medical/vital_sign/LineChartCurved.dart
index f2bc3d5f..fe112767 100644
--- a/lib/pages/medical/vital_sign/LineChartCurved.dart
+++ b/lib/pages/medical/vital_sign/LineChartCurved.dart
@@ -14,10 +14,18 @@ class LineChartCurved extends StatelessWidget {
   List<int> xAxixs = List();
   List<double> yAxixs = List();
 
+  double minY = 0;
+  double maxY = 0;
+
+  double minX = 0;
+  double maxX = 0;
+  double increasingY = 0;
+
   @override
   Widget build(BuildContext context) {
     getXaxix();
     getYaxix();
+    calculateMaxAndMin();
     return AspectRatio(
       aspectRatio: 1.1,
       child: Container(
@@ -70,10 +78,18 @@ class LineChartCurved extends StatelessWidget {
       }
     }
   }
+
   getYaxix() {
-    int indexess= (timeSeries.length*0.30).toInt();
+    // int indexess= (timeSeries.length*0.30).toInt();
+    // for (int index = 0; index < timeSeries.length; index++) {
+    //   int mIndex = indexess * index;
+    //   if (mIndex < timeSeries.length) {
+    //     yAxixs.add(timeSeries[mIndex].sales);
+    //   }
+    // }
+
     for (int index = 0; index < timeSeries.length; index++) {
-      int mIndex = indexess * index;
+      int mIndex = indexes * index;
       if (mIndex < timeSeries.length) {
         yAxixs.add(timeSeries[mIndex].sales);
       }
@@ -100,7 +116,6 @@ class LineChartCurved extends StatelessWidget {
             fontSize: 10,
           ),
           rotateAngle:-65,
-          //rotateAngle:-65,
           margin: 22,
           getTitles: (value) {
             if (timeSeries.length < 15) {
@@ -128,18 +143,18 @@ class LineChartCurved extends StatelessWidget {
             fontSize: 10,
           ),
           getTitles: (value) {
-            // if (timeSeries.length < 10) {
-            //     return '${value.toInt()}';
-            // } else {
-            //   if (value == getMinY())
-            //     return '${value.toInt()}';
-            //   if (value == getMaxY())
-            //     return '${value.toInt()}';
-            //   if (yAxixs.contains(value)) {
-            //     return '${value.toInt()}';
-            //   }
-            //   return '';
-            // }
+            if (timeSeries.length < 15) {
+                return '${value.toInt()}';
+            } else {
+              if (value == minY)
+                return '${value.toInt()}';
+              if (value == getMaxY())
+                return '${value.toInt()}';
+              //if (yAxixs.contains(value)) {
+                return '${value.toInt()}';
+
+              return '';
+            }
             return '${value.toInt()}';
           },
           margin: 12,
@@ -163,31 +178,55 @@ class LineChartCurved extends StatelessWidget {
           ),
         ),
       ),
-      minX: 0,
-      maxX: (timeSeries.length - 1).toDouble(),
-      maxY: getMaxY()+0.3,
-      minY: getMinY(),
+      minX: minX,
+      maxX: maxX,
+      maxY: maxY,
+      minY: minY,
       lineBarsData: getData(context),
     );
   }
 
+  calculateMaxAndMin(){
+    getMaxY();
+    getMaxX();
+    getMin();
+    getMinY();
+    increasingY = ((maxY-minY)/timeSeries.length - 1)*15;
+    maxY += increasingY.abs();
+    minY -= increasingY.abs();
+  }
+
   double getMaxY() {
-    double max = 0;
+     maxY = 0;
+    timeSeries.forEach((element) {
+      double resultValueDouble = element.sales;
+      if (resultValueDouble > maxY) maxY = resultValueDouble;
+    });
+
+    return maxY.roundToDouble() ;
+  }
+
+   getMaxX(){
+    maxX = (timeSeries.length - 1).toDouble();
+  }
+
+  double getMin(){
+     minX = 0;
     timeSeries.forEach((element) {
       double resultValueDouble = element.sales;
-      if (resultValueDouble > max) max = resultValueDouble;
+      if (resultValueDouble < minX) minX = resultValueDouble;
     });
 
-    return max.roundToDouble() ;
+    return minX.roundToDouble() ;
   }
 
   double getMinY() {
-    double min = timeSeries[0].sales;
+     minY = 0;
     timeSeries.forEach((element) {
       double resultValueDouble = element.sales;
-      if (resultValueDouble < min) min = resultValueDouble;
+      if (resultValueDouble < minY) minY = resultValueDouble;
     });
-    int value = min.toInt();
+    int value = minY.toInt();
 
     return value.toDouble();
   }
@@ -202,7 +241,7 @@ class LineChartCurved extends StatelessWidget {
       spots: spots,
       isCurved: true,
       colors: [secondaryColor],
-      barWidth: 5,
+      barWidth: 3,
       isStrokeCapRound: true,
       dotData: FlDotData(
         show: false,
diff --git a/lib/pages/medical/vital_sign/LineChartCurvedBloodPressure.dart b/lib/pages/medical/vital_sign/LineChartCurvedBloodPressure.dart
index fa177b1a..605e264a 100644
--- a/lib/pages/medical/vital_sign/LineChartCurvedBloodPressure.dart
+++ b/lib/pages/medical/vital_sign/LineChartCurvedBloodPressure.dart
@@ -178,8 +178,8 @@ class LineChartCurvedBloodPressure extends StatelessWidget {
       ),
       minX: 0,
       maxX: (timeSeries1.length - 1).toDouble(),
-      maxY: getMaxY() + 0.3,
-      minY: getMinY(),
+      maxY: getMaxY() + 15,
+      minY: getMinY()-15,
       lineBarsData: getData(context),
     );
   }