From 9e70914d2b53dae2c9b37d8e9826f6dd8fd46210 Mon Sep 17 00:00:00 2001
From: 7u83 <7u83@mail.ru>
Date: Tue, 4 Apr 2017 14:59:30 +0200
Subject: [PATCH] reactivated auto-scrolling

---
 src/chart/Chart.form | 26 -------------------
 src/chart/Chart.java | 59 +++++++++++++++++++++++++-------------------
 2 files changed, 34 insertions(+), 51 deletions(-)

diff --git a/src/chart/Chart.form b/src/chart/Chart.form
index 0c6fb96..d4638b0 100644
--- a/src/chart/Chart.form
+++ b/src/chart/Chart.form
@@ -1,32 +1,6 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 
 <Form version="1.3" maxVersion="1.9" type="org.netbeans.modules.form.forminfo.JPanelFormInfo">
-  <NonVisualComponents>
-    <Container class="javax.swing.JPopupMenu" name="ctxMenu">
-
-      <Layout class="org.netbeans.modules.form.compat2.layouts.DesignAbsoluteLayout">
-        <Property name="useNullLayout" type="boolean" value="true"/>
-      </Layout>
-      <SubComponents>
-        <Menu class="javax.swing.JMenu" name="compMenu">
-          <Properties>
-            <Property name="text" type="java.lang.String" value="Compression"/>
-          </Properties>
-        </Menu>
-        <MenuItem class="javax.swing.JCheckBoxMenuItem" name="jCheckBoxMenuItem1">
-          <Properties>
-            <Property name="mnemonic" type="int" value="108"/>
-            <Property name="selected" type="boolean" value="true"/>
-            <Property name="text" type="java.lang.String" value="Log Scale"/>
-            <Property name="toolTipText" type="java.lang.String" value=""/>
-          </Properties>
-          <Events>
-            <EventHandler event="actionPerformed" listener="java.awt.event.ActionListener" parameters="java.awt.event.ActionEvent" handler="jCheckBoxMenuItem1ActionPerformed"/>
-          </Events>
-        </MenuItem>
-      </SubComponents>
-    </Container>
-  </NonVisualComponents>
   <Properties>
     <Property name="background" type="java.awt.Color" editor="org.netbeans.beaninfo.editors.ColorEditor">
       <Color blue="ff" green="ff" id="white" palette="1" red="ff" type="palette"/>
diff --git a/src/chart/Chart.java b/src/chart/Chart.java
index 6df525f..5f4dc5a 100644
--- a/src/chart/Chart.java
+++ b/src/chart/Chart.java
@@ -579,6 +579,40 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
         }
         //       g.setColor(Color.RED);
         //        g.drawRect(0,0,gdim.width,gdim.height);
+        
+         int pwidth = (int) (em_width * x_unit_width * (num_bars + 1)) + clip_bounds.width;
+        //   int phight = 400;
+        //   phight=this.getVisibleRect().height;
+
+        this.setPreferredSize(new Dimension(pwidth, gdim.height));
+        this.revalidate();
+
+        int bww = (int) (data.size() * (this.x_unit_width * this.em_width));
+        int p0 = pwidth - clip_bounds.width - (clip_bounds.width - (int) (13 * em_width));
+        if (p0 < 0) {
+            p0 = 0;
+        }
+        JViewport vp = (JViewport) this.getParent();
+        Point pp = vp.getViewPosition();
+        Point cp = vp.getViewPosition();
+
+        if (autoScroll && this.lastvpos != cp.x) {
+            autoScroll = false;
+        }
+
+        if (!autoScroll && cp.x >= p0) {
+            autoScroll = true;
+        }
+
+        if (autoScroll) {
+            vp.setViewPosition(new Point(p0, 0));
+            lastvpos = p0;
+
+        }
+       
+        
+        
+        
 
         this.charts = new ArrayList<>();
         setupSubCharts();
@@ -744,24 +778,6 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
     // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
     private void initComponents() {
 
-        ctxMenu = new javax.swing.JPopupMenu();
-        compMenu = new javax.swing.JMenu();
-        jCheckBoxMenuItem1 = new javax.swing.JCheckBoxMenuItem();
-
-        compMenu.setText("Compression");
-        ctxMenu.add(compMenu);
-
-        jCheckBoxMenuItem1.setMnemonic('l');
-        jCheckBoxMenuItem1.setSelected(true);
-        jCheckBoxMenuItem1.setText("Log Scale");
-        jCheckBoxMenuItem1.setToolTipText("");
-        jCheckBoxMenuItem1.addActionListener(new java.awt.event.ActionListener() {
-            public void actionPerformed(java.awt.event.ActionEvent evt) {
-                jCheckBoxMenuItem1ActionPerformed(evt);
-            }
-        });
-        ctxMenu.add(jCheckBoxMenuItem1);
-
         setBackground(java.awt.Color.white);
         setBorder(null);
         setOpaque(false);
@@ -780,10 +796,6 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
         );
     }// </editor-fold>//GEN-END:initComponents
 
-    private void jCheckBoxMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jCheckBoxMenuItem1ActionPerformed
-        // TODO add your handling code here:
-    }//GEN-LAST:event_jCheckBoxMenuItem1ActionPerformed
-
   /*  protected void setCompression(int timeFrame) {
         javax.swing.SwingUtilities.invokeLater(() -> {
             data = Globals.se.getOHLCdata(timeFrame);
@@ -807,8 +819,5 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
 
 
     // Variables declaration - do not modify//GEN-BEGIN:variables
-    private javax.swing.JMenu compMenu;
-    private javax.swing.JPopupMenu ctxMenu;
-    private javax.swing.JCheckBoxMenuItem jCheckBoxMenuItem1;
     // End of variables declaration//GEN-END:variables
 }