fluid.onion_frame source code

1 ///
2 module fluid.onion_frame;
3 
4 import fluid.frame;
5 import fluid.utils;
6 import fluid.style;
7 import fluid.backend;
8 
9 
10 @safe:
11 
12 
13 /// An onion frame places its children as layers, drawing one on top of the other, instead of on the side.
14 ///
15 /// Children are placed in order of drawing — the last child will be drawn last, and so, will appear on top.
16 alias onionFrame = simpleConstructor!OnionFrame;
17 
18 /// ditto
19 class OnionFrame : Frame {
20 
21     this(T...)(T args) {
22 
23         super(args);
24 
25     }
26 
27     protected override void resizeImpl(Vector2 available) {
28 
29         import std.algorithm : max;
30 
31         use(canvasIO);
32 
33         minSize = Vector2(0, 0);
34 
35         // Check each child
36         foreach (child; children) {
37 
38             // Resize the child
39             resizeChild(child, available);
40 
41             // Update minSize
42             minSize.x = max(minSize.x, child.minSize.x);
43             minSize.y = max(minSize.y, child.minSize.y);
44 
45         }
46 
47     }
48 
49     protected override void drawImpl(Rectangle outer, Rectangle inner) {
50 
51         const style = pickStyle();
52         style.drawBackground(tree.io, canvasIO, outer);
53 
54         foreach (child; filterChildren) {
55 
56             drawChild(child, inner);
57 
58         }
59 
60     }
61 
62 }
63 
64 ///
65 unittest {
66 
67     import fluid;
68 
69     auto myFrame = onionFrame(
70 
71         // Draw an image
72         imageView("logo.png"),
73 
74         // Draw a label in the middle of the frame
75         label(
76             layout!(1, "center"),
77             "Hello, Fluid!"
78         ),
79 
80     );
81 
82 }