Model multi-monitor layout geometry

2026-08-18 15:00:18 -04:00
parent 101797f8f0
commit 2613768efd
3 changed files with 273 additions and 0 deletions
@@ -0,0 +1,50 @@
+import Quickshell
+import Quickshell.Io
+import QtQuick
+
+import "services/DisplayLayout.js" as DisplayLayout
+
+ShellRoot {
+    readonly property var fixture: [
+        { name: "DP-2", width: 4500, height: 3000, scale: 1.5, transform: 0, x: 140, y: 80, primary: true },
+        { name: "HDMI-A-1", width: 2560, height: 1440, scale: 1, transform: 1, x: 3140, y: 80, primary: false }
+    ]
+
+    IpcHandler {
+        target: "display-layout-test"
+
+        function status(): string {
+            const normalized = DisplayLayout.normalize(fixture);
+            const canvas = DisplayLayout.canvasRects(normalized, 800, 500, 20);
+            const near = normalized.map(record => Object.assign({}, record));
+            near[1].x = 3016;
+            const far = normalized.map(record => Object.assign({}, record));
+            far[1].x = 3017;
+            return JSON.stringify({
+                valid: DisplayLayout.validate(fixture),
+                sizes: fixture.map(DisplayLayout.logicalSize),
+                normalized: normalized.map(record => ({ name: record.name, x: record.x, y: record.y, primary: record.primary })),
+                bounds: canvas.bounds,
+                canvasScale: canvas.scale,
+                canvasRects: canvas.rects,
+                near: DisplayLayout.snap(near, "HDMI-A-1", 16).find(record => record.name === "HDMI-A-1").x,
+                far: DisplayLayout.snap(far, "HDMI-A-1", 16).find(record => record.name === "HDMI-A-1").x
+            });
+        }
+
+        function invalid(): string {
+            const base = fixture.map(record => Object.assign({}, record));
+            const cases = [];
+            const add = layout => cases.push(DisplayLayout.validate(layout));
+            add([base[0], Object.assign({}, base[1], { name: "DP-2" })]);
+            add(base.map(record => Object.assign({}, record, { primary: false })));
+            add(base.map(record => Object.assign({}, record, { primary: true })));
+            add([Object.assign({}, base[0], { x: 0.5 }), base[1]]);
+            add([Object.assign({}, base[0], { scale: 0 }), base[1]]);
+            add([Object.assign({}, base[0], { transform: 4 }), base[1]]);
+            add([Object.assign({}, base[0], { width: Infinity }), base[1]]);
+            add([Object.assign({}, base[0], { width: 0 }), base[1]]);
+            return JSON.stringify(cases);
+        }
+    }
+}