app source code

1 module app;
2 
3 import dlangui;
4 import plot2d;
5 
6 mixin APP_ENTRY_POINT;
7 
8 auto ct()
9 {
10     import std.datetime : Clock;
11     return Clock.currStdTime / 1e7;
12 }
13 
14 class PlotWidget : CanvasWidget
15 {
16     Plot plot;
17     DlangUICtx ctx;
18 
19     this()
20     {
21         plot = new Plot;
22         plot.settings.minGridStep.x = 80;
23         plot.settings.minGridStep.y = 80;
24         ctx = new DlangUICtx;
25 
26         auto mf(float i) { return sin(i*sin(i+ct()*0.5)*PI*2); }
27         auto tre = iota(-2, 2.02, 0.02)
28             .map!(i=>TreStat(i, mf(i) + 0.4 + sin(i*PI*2+ct*3) * 0.3,
29                             mf(i), mf(i) - 0.4 - sin(i*PI*2+ct*5) * 0.3));
30 
31         plot.add(new TreChart(
32             PColor(0,0.5,0,0.8),
33 
34             PColor(1,1,0,.3),
35             PColor(1,1,0,.2),
36 
37             PColor(0,1,1,.3),
38             PColor(0,1,1,.2),
39             (ref Appender!(TreStat[]) buf) { buf.put(tre.save); }
40         ));
41 
42         plot.settings.viewport = Viewport(DimSeg(-2,2), DimSeg(-1, 2));
43         plot.settings.autoFit = false;
44         plot.settings.padding = Border(0);
45     }
46 
47     override void doDraw(DrawBuf buf, Rect rc)
48     {
49         buf.fillRect(rc, 0xaaaaaa);
50         auto _ = ctx.set(buf);
51         plot.updateCharts();
52         plot.draw(ctx, PPoint(this.width, this.height));
53     }
54 }
55 
56 extern (C) int UIAppMain(string[] args)
57 {
58     Window window = Platform.instance.createWindow(
59         "example", null, WindowFlag.Resizable, 1000, 600);
60 
61     window.mainWidget = new PlotWidget();
62 
63     window.show();
64 
65     return Platform.instance.enterMessageLoop();
66 }