feat: graphs now properly sized + port static graphs to c++

Modules/Dashboard/Processes/SystemInfo.qml

@@ -101,6 +101,7 @@ orientation: Qt.Vertical
 						line1Color: card.accent
 						line1FillAlpha: 0.15
 						maxValue: 1.0
+						slideInterval: Config.dashboard.resourceUpdateInterval
 						slideProgress: 1
 
 						Connections {
@@ -114,9 +115,14 @@ orientation: Qt.Vertical
 						NumberAnimation {
 							id: slideAnim
 
+							// Only drives frames; the slide phase is the sample
+							// clock inside SparklineItem. It must not stop at the
+							// end of a cycle, or the newest value is held on the
+							// clipped edge until the next sample arrives.
 							duration: Config.dashboard.resourceUpdateInterval
 							easing.type: Easing.Linear
 							from: 0
+							loops: Animation.Infinite
 							property: "slideProgress"
 							target: sparkline
 							to: 1

Modules/Dashboard/Weather/Graphs.qml

@@ -25,14 +25,6 @@ SnapLayout {
 		return ZUtils.snap(d.getHours() + d.getMinutes() / 60, root);
 	}
 
-	function formatHour(h) {
-		if (root.useTwelveHourClock) {
-			const hr = h % 12 === 0 ? 12 : h % 12;
-			return hr + (h < 12 ? " AM" : " PM");
-		}
-		return h;
-	}
-
 	Timer {
 		interval: 60000
 		repeat: true
@@ -78,8 +70,10 @@ SnapLayout {
 				minHorizontalLines: 3
 				yPaddingTop: horizontalLineStep
 				yPaddingBottom: horizontalLineStep
-				xLabel: i => root.formatHour(i)
-				yLabel: v => Math.round(v) + "°"
+				xLabelMode: LineGraph.Hour
+				useTwelveHourClock: root.useTwelveHourClock
+				yLabelMode: LineGraph.Value
+				yLabelSuffix: "°"
 
 				markerX: root.markerX
 				smoothing: root.smoothing
@@ -133,8 +127,10 @@ SnapLayout {
 				verticalLineStep: 3
 				lastXLine: false
 				horizontalLineStep: 30
-				xLabel: i => root.formatHour(i)
-				yLabel: v => v + "%"
+				xLabelMode: LineGraph.Hour
+				useTwelveHourClock: root.useTwelveHourClock
+				yLabelMode: LineGraph.Value
+				yLabelSuffix: "%"
 
 				markerX: root.markerX
 				smoothing: root.smoothing