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Drawing logarithmic charts

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7u83 2017-02-20 08:21:01 +01:00
parent 0603bbc0d3
commit 17e1c30c31
2 changed files with 19 additions and 9 deletions
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1
src/main/java/chart/Chart.form
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@ -29,7 +29,6 @@
<Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor"> <Property name="border" type="javax.swing.border.Border" editor="org.netbeans.modules.form.editors2.BorderEditor">
<Border info="null"/> <Border info="null"/>
</Property> </Property>
<Property name="doubleBuffered" type="boolean" value="false"/>
<Property name="opaque" type="boolean" value="false"/> <Property name="opaque" type="boolean" value="false"/>
<Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor"> <Property name="preferredSize" type="java.awt.Dimension" editor="org.netbeans.beaninfo.editors.DimensionEditor">
<Dimension value="[300, 300]"/> <Dimension value="[300, 300]"/>

27
src/main/java/chart/Chart.java
View File

@ -176,8 +176,13 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
*/ */
void drawXLegend(Graphics2D g, XLegendDef xld) { void drawXLegend(Graphics2D g, XLegendDef xld) {
g = (Graphics2D) g.create(); 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(); Dimension dim = getSize();
int y = dim.height - em_height * 3; 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); ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f);
this.ct = ChartType.CANDLESTICK; this.ct = ChartType.CANDLESTICK;
logs=true;
drawChart(ctx); drawChart(ctx);
c_mm = data.getVolMinMax(first_bar, last_bar); 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.g = g;
ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f); ctx.iwidth = (float) ((x_unit_width * em_size) * 0.9f);
logs=false;
this.ct = ChartType.VOL; this.ct = ChartType.VOL;
drawChart(ctx); drawChart(ctx);
@ -519,6 +526,9 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
@Override @Override
public final void paintComponent(Graphics g) { public final void paintComponent(Graphics g) {
if (Globals.se==null){
return;
}
super.paintComponent(g); super.paintComponent(g);
// Calculate the number of pixels for 1 em // 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); setBackground(java.awt.Color.white);
setBorder(null); setBorder(null);
setDoubleBuffered(false);
setOpaque(false); setOpaque(false);
setPreferredSize(new java.awt.Dimension(300, 300)); setPreferredSize(new java.awt.Dimension(300, 300));
setRequestFocusEnabled(false); setRequestFocusEnabled(false);
@ -615,10 +624,9 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
private void formMouseWheelMoved(java.awt.event.MouseWheelEvent evt) {//GEN-FIRST:event_formMouseWheelMoved private void formMouseWheelMoved(java.awt.event.MouseWheelEvent evt) {//GEN-FIRST:event_formMouseWheelMoved
System.out.printf("Wheel %f\n", evt.getPreciseWheelRotation()); System.out.printf("Wheel %f\n", evt.getPreciseWheelRotation());
double n = evt.getPreciseWheelRotation()*(-1.0); double n = evt.getPreciseWheelRotation() * (-1.0);
System.out.printf("My n %f\n", n);
System.out.printf("My n %f\n",n);
if (n < 0) { if (n < 0) {
if (this.x_unit_width > 0.3) { if (this.x_unit_width > 0.3) {
this.x_unit_width += 0.1 * n; this.x_unit_width += 0.1 * n;
@ -632,9 +640,12 @@ public class Chart extends javax.swing.JPanel implements QuoteReceiver, Scrollab
}//GEN-LAST:event_formMouseWheelMoved }//GEN-LAST:event_formMouseWheelMoved
void setCompression(int timeFrame) { void setCompression(int timeFrame) {
data = Globals.se.getOHLCdata(timeFrame); javax.swing.SwingUtilities.invokeLater(() -> {
invalidate(); data = Globals.se.getOHLCdata(timeFrame);
repaint(); invalidate();
repaint();
});
} }
@Override @Override