Port over more of the monitor distance logic, v2.6.3

VERSION

@@ -1 +1 @@
-2.6.2
+2.6.3

kwin/src/kcm/breezydesktopeffectkcm.h

@@ -73,6 +73,8 @@ private:
     int m_smoothFollowThreshold = 1;
     QString m_connectedDeviceBrand;
     QString m_connectedDeviceModel;
+    int m_connectedDeviceFullDistanceCm = 0;
+    int m_connectedDeviceFullSizeCm = 0;
     QTimer m_statePollTimer; // periodic driver state polling
     QTimer m_virtualDisplayPollTimer; // periodic virtual display list polling
     bool m_licenseLoading = false;

kwin/src/qml/Displays.qml

@@ -367,23 +367,28 @@ QtObject {
 
     // returns how far the look vector is from the center of the monitor, as a percentage of the monitor's dimensions
     function getMonitorDistance(fovDetails, lookUpPixels, lookWestPixels, monitorVector, monitorDetails, upAngleToLength, westAngleToLength) {
+        // since the monitor vector has been modified to be relative to the lens position, we need to calculate its distance from the lens
+        // we need to adjust all angle-based lengths based on new vector distance
+        const monitorDistance = monitorVector.length();
+        const distanceAdjustment = monitorDistance / fovDetails.completeScreenDistancePixels;
+
         var vectorUpPixels = upAngleToLength(
             fovDetails.defaultDistanceVerticalRadians,
             fovDetails.heightPixels,
-            fovDetails.completeScreenDistancePixels,
+            monitorDistance,
             monitorVector.z,
             monitorVector.x
-        );
-        var upPercentage = Math.abs(lookUpPixels - vectorUpPixels) / monitorDetails.height;
+        ) * distanceAdjustment;
+        var upPercentage = Math.abs(lookUpPixels * distanceAdjustment - vectorUpPixels) / monitorDetails.height;
 
         var vectorWestPixels = westAngleToLength(
             fovDetails.defaultDistanceHorizontalRadians,
             fovDetails.widthPixels,
-            fovDetails.completeScreenDistancePixels,
+            monitorDistance,
             monitorVector.y,
             monitorVector.x
-        );
-        var westPercentage = Math.abs(lookWestPixels - vectorWestPixels) / monitorDetails.width;
+        ) * distanceAdjustment;
+        var westPercentage = Math.abs(lookWestPixels * distanceAdjustment - vectorWestPixels) / monitorDetails.width;
 
         // how close we are to any edge is the largest of the two percentages
         return Math.max(upPercentage, westPercentage);