v1.5.0: bigger spaced euro sign, trend arrows on flip/nixie, two-phase flip cascade (reset to 0 over 2s then new values), fix nixie flicker endurance

contents/ui/DisplayNixie.qml

@@ -3,7 +3,8 @@
  * Glow is faked with layered text copies, so no QtGraphicalEffects
  * dependency. Tubes flicker randomly (nixie cathode style); the
  * flicker intensity is configurable (0 = off, 100 = nervous).
- * The euro sign is rendered as plain text (default font, white).
+ * The euro sign is plain text (default font, white), followed by a
+ * trend arrow (green up / red down; unchanged keeps the last arrow).
  * Pure QtQuick: testable outside the plasmoid shell.
  */
 
@@ -14,7 +15,14 @@ Row {
 
     // wired by the parent loader
     property string display: "--"
-    property color trendColor: "#9e9e9e"
+    // 1 = up, -1 = down, 0 = unchanged -> keep showing the last arrow
+    property int trendDir: 0
+    property int lastDir: 0
+    onTrendDirChanged: {
+        if (trendDir !== 0) {
+            lastDir = trendDir;
+        }
+    }
     // 0 = no flicker, 100 = frequent and deep flicker
     property int flickerIntensity: 40
 
@@ -98,18 +106,21 @@ Row {
                 }
             }
 
-            // nixie flicker: random dropout of the cathode glow
+            // nixie flicker: random dropout of the cathode glow.
+            // repeat: true keeps the cycle alive; each trigger reschedules
+            // the next interval (intensity 40 -> ~4 s between flicks,
+            // 100 -> ~1.5 s).
             Timer {
                 id: flickTimer
-                repeat: false
+                repeat: true
                 running: root.flickerOn
+                interval: 1500
                 onTriggered: {
                     flick.restart();
                     scheduleNext();
                 }
 
                 function scheduleNext() {
-                    // intensity 40 -> ~4 s between flicks, 100 -> ~1.5 s
                     var base = 6000 - root.flickerIntensity * 45;
                     interval = Math.max(700, base * (0.6 + Math.random() * 0.8));
                 }
@@ -137,6 +148,12 @@ Row {
         }
     }
 
+    // breathing room between the tubes and the currency sign
+    Item {
+        width: root.height * 0.22
+        height: 1
+    }
+
     // euro sign in the plain-text font, white
     Text {
         anchors.verticalCenter: parent.verticalCenter
@@ -144,7 +161,17 @@ Row {
         visible: root.digits.length > 0
         color: "#ffffff"
         font.family: Qt.application.font.family
-        font.pixelSize: root.height * 0.60
+        font.pixelSize: root.height * 0.85
+    }
+
+    // trend arrow: green up / red down; unchanged keeps the last arrow
+    Text {
+        anchors.verticalCenter: parent.verticalCenter
+        text: root.lastDir > 0 ? "\u25B2" : "\u25BC"
+        visible: root.digits.length > 0 && root.lastDir !== 0
+        color: root.lastDir > 0 ? "#2ecc71" : "#e74c3c"
+        font.family: Qt.application.font.family
+        font.pixelSize: root.height * 0.45
     }
 
     // error / empty state
@@ -156,15 +183,4 @@ Row {
         font.pixelSize: root.glowFont * 0.8
         visible: root.digits.length === 0
     }
-
-    // trend LED (green/red/grey)
-    Rectangle {
-        width: root.height * 0.11
-        height: width
-        radius: width / 2
-        anchors.verticalCenter: parent.verticalCenter
-        color: root.trendColor
-        border.color: "#4a2e12"
-        border.width: 1
-    }
 }