rpui.widgets.multiline_label.widget source code

1 module rpui.widgets.multiline_label.widget;
2 
3 import rpui.events;
4 import rpui.input;
5 import rpui.math;
6 import rpui.primitives;
7 import rpui.widget;
8 import rpui.widgets.multiline_label.renderer;
9 
10 class MultilineLabel : Widget {
11     @field Align textAlign = Align.left;
12     @field VerticalAlign textVerticalAlign = VerticalAlign.middle;
13     @field float lineHeightFactor = 1;
14     @field utf32string caption = "Label";
15 
16     package struct Measure {
17         float lineHeight;
18         float maxLineWidth;
19         size_t linesCount;
20     }
21 
22     package Measure measure;
23 
24     this(in string style = "Label") {
25         super(style);
26         this.drawChildren = false;
27         this.renderer = new MultilineLabelRenderer();
28     }
29 
30     override void onProgress(in ProgressEvent event) {
31         locator.updateAbsolutePosition();
32         locator.updateLocationAlign();
33         locator.updateVerticalLocationAlign();
34         updateSize();
35         renderer.onProgress(event);
36     }
37 
38 protected:
39     override void onCreate() {
40         super.onCreate();
41         focusable = false;
42     }
43 
44     override void updateSize() {
45         super.updateSize();
46 
47         if (heightType == SizeType.wrapContent) {
48             const textLineHeight = measure.lineHeight * lineHeightFactor;
49             const boundaryHeight = textLineHeight * measure.linesCount;
50             size.y = boundaryHeight + innerOffsetSize.y;
51         }
52 
53         if (widthType == SizeType.wrapContent) {
54             size.x = measure.maxLineWidth + innerOffsetSize.x;
55         }
56     }
57 }