Preview task-group selections until Meta is released

2026-09-11 10:59:54 +00:00
parent ccd0161398
commit 0ec628e786
18 changed files with 867 additions and 21 deletions
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: MIT
+
+#include "previewplacement.h"
+
+#include <plasma/plasma.h>
+#include <algorithm>
+
+QPoint previewPosition(const QRect &button, const QRect &screen, const QSize &preview, int panelLocation)
+{
+    const QRect anchor = button.isValid() ? button : screen;
+    const int centerX = anchor.x() + (anchor.width() - preview.width()) / 2;
+    const int centerY = anchor.y() + (anchor.height() - preview.height()) / 2;
+    QPoint result;
+    switch (panelLocation) {
+    case Plasma::Types::TopEdge:
+        result = {centerX, button.isValid() ? button.bottom() + 1 : screen.top()};
+        break;
+    case Plasma::Types::LeftEdge:
+        result = {button.isValid() ? button.right() + 1 : screen.left(), centerY};
+        break;
+    case Plasma::Types::RightEdge:
+        result = {button.isValid() ? button.left() - preview.width() : screen.right() + 1 - preview.width(), centerY};
+        break;
+    default:
+        result = {centerX, button.isValid() ? button.top() - preview.height() : screen.bottom() + 1 - preview.height()};
+        break;
+    }
+    result.setX(std::clamp(result.x(), screen.left(), std::max(screen.left(), screen.right() + 1 - preview.width())));
+    result.setY(std::clamp(result.y(), screen.top(), std::max(screen.top(), screen.bottom() + 1 - preview.height())));
+    return result;
+}