1 files changed, 74 insertions, 0 deletions
diff --git a/ui/qt/widgets/qcp_axis_ticker_elided.cpp b/ui/qt/widgets/qcp_axis_ticker_elided.cpp
new file mode 100644
index 00000000..154a750a
--- /dev/null
+++ b/ui/qt/widgets/qcp_axis_ticker_elided.cpp
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+/** @file
+ *
+ * QCustomPlot QCPAxisTickerText subclass that elides labels to the
+ * width of the parent QCPAxis's QCPAxisRect's margin for the appropriate
+ * side, for use when the margin is fixed.
+ *
+ * Copyright 2024 John Thacker <johnthacker@gmail.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include <ui/qt/widgets/qcp_axis_ticker_elided.h>
+
+#include <QFontMetrics>
+
+QCPAxisTickerElided::QCPAxisTickerElided(QCPAxis *parent) :
+    mParent(parent)
+{
+}
+
+QCP::MarginSide QCPAxisTickerElided::axisTypeToMarginSide(const QCPAxis::AxisType axis)
+{
+    switch (axis) {
+    case QCPAxis::atLeft:
+        return QCP::msLeft;
+    case QCPAxis::atRight:
+        return QCP::msRight;
+    case QCPAxis::atTop:
+        return QCP::msTop;
+    case QCPAxis::atBottom:
+        return QCP::msBottom;
+    }
+    return QCP::msNone;
+}
+
+QString QCPAxisTickerElided::elidedText(const QString& text)
+{
+    QCP::MarginSides autoMargins = mParent->axisRect()->autoMargins();
+    if (autoMargins & axisTypeToMarginSide(mParent->axisType())) {
+        return text;
+    }
+    int elide_w;
+    QMargins margins = mParent->axisRect()->margins();
+    switch (mParent->axisType()) {
+    case QCPAxis::atLeft:
+        elide_w = margins.left();
+        break;
+    case QCPAxis::atRight:
+        elide_w = margins.right();
+        break;
+    case QCPAxis::atTop:
+        elide_w = margins.top();
+        break;
+    case QCPAxis::atBottom:
+        elide_w = margins.bottom();
+        break;
+    default:
+        // ??
+        elide_w = margins.left();
+    }
+
+    return QFontMetrics(mParent->tickLabelFont()).elidedText(text,
+                                                             Qt::ElideRight,
+                                                             elide_w);
+}
+
+QString QCPAxisTickerElided::getTickLabel(double tick, const QLocale& , QChar , int)
+{
+    return elidedText(mTicks.value(tick));
+}