Drawing logarithmic charts

src/main/java/chart/Chart.form

@@ -29,7 +29,6 @@
     <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
       <Border info="null"/>
     </Property>
-    <Property name="doubleBuffered" type="boolean" value="false"/>
     <Property name="opaque" type="boolean" value="false"/>
     <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
       <Dimension value="[300, 300]"/>

src/main/java/chart/Chart.java

@@ -176,8 +176,13 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
      */
     void drawXLegend(Graphics2D g, XLegendDef xld) {
 
+        
         g = (Graphics2D) g.create();
 
+        int yw = (int) (this.y_legend_width * this.em_size);
+
+        g.setClip(clip_bounds.x, clip_bounds.y, clip_bounds.width - yw, clip_bounds.height);        
+
         Dimension dim = getSize();
         int y = dim.height - em_height * 3;
 
@@ -488,6 +493,7 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
         ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f);
 
         this.ct = ChartType.CANDLESTICK;
+        logs=true;
         drawChart(ctx);
 
         c_mm = data.getVolMinMax(first_bar, last_bar);
@@ -510,6 +516,7 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
         ctx.g = g;
         ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f);
 
+        logs=false;
         this.ct = ChartType.VOL;
         drawChart(ctx);
 
@@ -519,6 +526,9 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
 
     @Override
     public final void paintComponent(Graphics g) {
+        if (Globals.se==null){
+            return;
+        }
         super.paintComponent(g);
 
         // Calculate the number of pixels for 1 em
@@ -569,7 +579,6 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
 
         setBackground(java.awt.Color.white);
         setBorder(null);
-        setDoubleBuffered(false);
         setOpaque(false);
         setPreferredSize(new java.awt.Dimension(300, 300));
         setRequestFocusEnabled(false);
@@ -617,7 +626,6 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
 
         double n = evt.getPreciseWheelRotation() * (-1.0);
 
-        
         System.out.printf("My n %f\n", n);
         if (n < 0) {
             if (this.x_unit_width > 0.3) {
@@ -632,9 +640,12 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
     }//GEN-LAST:event_formMouseWheelMoved
 
     void setCompression(int timeFrame) {
+        javax.swing.SwingUtilities.invokeLater(() -> {
             data = Globals.se.getOHLCdata(timeFrame);
             invalidate();
             repaint();
+        });
+
     }
 
     @Override