zhc_ir 0.8.1

Graph-based intermediate representation framework with dialect support
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182

/* Reset and full viewport */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background: #ffffff;
}

/* Viewport container - catches mouse events */
#viewport {
    width: 100%;
    height: 100%;
    overflow: hidden;
    cursor: grab;
}

#viewport.grabbing {
    cursor: grabbing;
}

/* Canvas - the transform target */
#canvas {
    width: 100%;
    height: 100%;
    transform-origin: 0 0;
    /* Will be set by JS: transform: translate(x, y) scale(k) */
}

/* SVG fills the canvas */
#canvas svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* Hover highlighting for values */
.input-port, .output-port, .link {
    transition: opacity 0.15s ease, stroke-width 0.15s ease;
}

/* Hitarea for links - wider invisible stroke for easier hover detection */
.link-hitarea {
    pointer-events: stroke;
}

.input-port.highlight, .output-port.highlight {
    filter: drop-shadow(0 0 4px rgba(0, 100, 200, 0.8));
}

.link.highlight {
    stroke-width: 3px !important;
    filter: drop-shadow(0 0 3px rgba(0, 100, 200, 0.6));
}

.input-port.dimmed, .output-port.dimmed, .link.dimmed {
    opacity: 0.15;
}

/* Pinned elements stay visible even when others are dimmed */
.input-port.pinned, .output-port.pinned, .link.pinned {
    opacity: 1 !important;
}

/* Per-node color picker popup */
.color-picker {
    position: fixed;
    display: flex;
    gap: 4px;
    padding: 6px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    z-index: 1000;
}

.color-swatch {
    width: 22px;
    height: 22px;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 50%;
    cursor: pointer;
    padding: 0;
}

.color-swatch:hover {
    transform: scale(1.15);
}

.color-clear {
    background: white;
    color: #888;
    font-size: 16px;
    line-height: 1;
}

/* ============================================ */
/* Search box                                   */
/* ============================================ */

#search-box {
    position: fixed;
    top: 12px;
    right: 12px;
    z-index: 1100;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    background: white;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.18);
    font-family: system-ui, sans-serif;
    font-size: 13px;
}

#search-box.hidden {
    display: none;
}

#search-input {
    width: 200px;
    padding: 4px 6px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 13px;
    outline: none;
}

#search-input:focus {
    border-color: #4dabf7;
}

#search-count {
    min-width: 48px;
    text-align: center;
    color: #868e96;
    font-variant-numeric: tabular-nums;
}

#search-count.no-match {
    color: #e03131;
}

#search-box button {
    width: 24px;
    height: 24px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background: #f8f9fa;
    cursor: pointer;
    line-height: 1;
    color: #495057;
}

#search-box button:hover {
    background: #e9ecef;
}

/* Highlight boxes drawn behind matched text (inside the SVG, so they zoom
   with the canvas). Bright fill for all hits, hot accent + glow for current. */
.search-hit {
    fill: #ffe000;
    opacity: 0.5;
    pointer-events: none;
}

.search-hit-current {
    fill: #ff9500;
    opacity: 0.85;
    stroke: #d9480f;
    stroke-width: 2px;
    paint-order: stroke;
    filter: drop-shadow(0 0 6px rgba(255, 100, 0, 0.9));
}