Not logged in.  Login/Logout/Register | List snippets | | Create snippet | Upload image | Upload data

73
LINES

< > BotCompany Repo | #1036170 // TickerGraphPainter

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (31205L/199K).

1  
sclass TickerGraphPainter extends AbstractTickerPainter is IToolTipMaker, MakesBufferedImage {
2  
  settable S pricePrefix = "Price=";  
3  
  settable bool fillRedAndGreen;
4  
  
5  
  *() {}
6  
  *(TickerSequence ticker) { ticker(ticker); }
7  
  
8  
  public void drawOn(Graphics2D g) {
9  
    antiAliasOn(g);
10  
    
11  
    if (verticalRange == null)
12  
      verticalRange(verticalRangeForTicker(ticker));
13  
    if (horizontalRange == null)
14  
      horizontalRange(horizontalRangeForTicker(ticker));
15  
    if (horizontalRange == null)
16  
      ret;
17  
    
18  
    drawPercentLines(g);
19  
    drawAdditionalObjects(g);
20  
21  
    // Draw ticker graph
22  
    
23  
    var xRange = roundToIntRange(xRange());
24  
    int idx1 = ticker.indexOfTimestampAtOrBefore(xFromScreen(xRange.start));
25  
    int x = xRange.start;
26  
    if (idx1 == 0)
27  
      x = max(x, ifloor(xToScreen(ticker.startTime())));
28  
    int idx2 = idx1;
29  
    int y0 = yToScreen_int(0);
30  
    
31  
    for (; x < xRange.end; x++) {
32  
      idx1 = idx2;
33  
      idx2 = ticker.indexOfTimestampAtOrBefore(xFromScreen(x+1));
34  
      var seq = ticker.subSequence(idx1, idx2+1);
35  
      double minPrice = seq.minPrice();
36  
      double maxPrice = seq.maxPrice();
37  
      int y1 = yToScreen_int(maxPrice);
38  
      int y2 = yToScreen_int(minPrice);
39  
      
40  
      if (fillRedAndGreen) {
41  
        if (minPrice > 0)
42  
          drawLine(g, x, y2+1, x, y0-1, directionToCandleColor(1));
43  
        else if (maxPrice < 0)
44  
          drawLine(g, x, y0, x, y1-1, directionToCandleColor(-1));
45  
      }
46  
      
47  
      drawLine(g, x, y1, x, y2, Color.white);
48  
    }
49  
    
50  
    drawPositions(g);
51  
  }
52  
53  
  public BufferedImage render() {
54  
    var img = super.render();
55  
    var img2 = cloneBufferedImageWithMeta(img);
56  
    metaSet(img2, IToolTipMaker, this);
57  
    ret img2;
58  
  }
59  
  
60  
  public S getToolTip(Pt p) {
61  
    double time = xFromScreen(p.x);
62  
    double price = ticker.priceAtTimestamp(time);
63  
    ret spaceCombine(
64  
      ticker.market,
65  
      formatPrice(price),
66  
      "at",
67  
      formatLocalDateWithSeconds(lround(time)));
68  
  }
69  
  
70  
  swappable S formatPrice(double price) {
71  
    ret pricePrefix() + formatDouble3X(price);
72  
  }
73  
}

Author comment

Began life as a copy of #1036145

download  show line numbers  debug dex  old transpilations   

Travelled to 3 computer(s): elmgxqgtpvxh, mqqgnosmbjvj, wnsclhtenguj

No comments. add comment

Snippet ID: #1036170
Snippet name: TickerGraphPainter
Eternal ID of this version: #1036170/29
Text MD5: bcefb0d87485eaf7bcf6e203e3b8d0d5
Transpilation MD5: 9950ff211ee25d36bd88a0a0c0872032
Author: stefan
Category: javax / gazelle 22
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2023-03-16 16:48:47
Source code size: 2128 bytes / 73 lines
Pitched / IR pitched: No / No
Views / Downloads: 235 / 433
Version history: 28 change(s)
Referenced in: [show references]