kernel-shark: Fix warnings from deprecated Qt APIs

Couple of APIs used by KernelShark have been marked as deprecated
in the recent version of Qt. Fix all compilation warnings caused
by the usage of these deprecated APIs.

Link: https://lore.kernel.org/linux-trace-devel/20210727134225.25025-2-y.karadz@gmail.com

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>

6 files changed, 31 insertions, 6 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 67dfb816..c2c09833 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -83,6 +83,12 @@ if (Qt5Widgets_FOUND)
 
     endif()
 
+    if(Qt5Widgets_VERSION VERSION_LESS "5.15")
+
+        set(QT_VERSION_LESS_5_15 TRUE)
+
+    endif()
+
 endif (Qt5Widgets_FOUND)
 
 find_package (Boost COMPONENTS unit_test_framework)
diff --git a/build/deff.h.cmake b/build/deff.h.cmake
index 06cbf16c..82379df4 100644
--- a/build/deff.h.cmake
+++ b/build/deff.h.cmake
@@ -31,6 +31,7 @@
 
 /** Qt - old version detected. */
 #cmakedefine QT_VERSION_LESS_5_11
+#cmakedefine QT_VERSION_LESS_5_15
 
 /** Location of the KernelShark tests. */
 #cmakedefine KS_TEST_DIR "@KS_TEST_DIR@"
diff --git a/src/KsGLWidget.cpp b/src/KsGLWidget.cpp
index 8aab7b3c..3b2e0d4d 100644
--- a/src/KsGLWidget.cpp
+++ b/src/KsGLWidget.cpp
@@ -345,10 +345,18 @@ void KsGLWidget::wheelEvent(QWheelEvent * event)
 		 * Use the position of the mouse as a focus point for the
 		 * zoom.
 		 */
-		zoomFocus = event->pos().x() - _bin0Offset();
+#ifdef QT_VERSION_LESS_5_15
+
+	zoomFocus = event->pos().x() - _bin0Offset();
+
+#else
+
+	zoomFocus = event->position().x() - _bin0Offset();
+
+#endif // QT_VERSION_LESS_5_15
 	}
 
-	if (event->delta() > 0) {
+	if (event->angleDelta().y() > 0) {
 		_model.zoomIn(.05, zoomFocus);
 	} else {
 		_model.zoomOut(.05, zoomFocus);
diff --git a/src/KsUtils.cpp b/src/KsUtils.cpp
index 3db89510..364c25db 100644
--- a/src/KsUtils.cpp
+++ b/src/KsUtils.cpp
@@ -486,7 +486,7 @@ QString getSaveFile(QWidget *parent,
  */
 QStringList splitArguments(QString cmd)
 {
-	QString::SplitBehavior opt = QString::SkipEmptyParts;
+	auto opt = KS_SPLIT_SkipEmptyParts;
 	int i, progress = 0, size;
 	QStringList argv;
 	QChar quote = 0;
@@ -527,7 +527,7 @@ QStringList splitArguments(QString cmd)
  */
 QVector<int> parseIdList(QString v_str)
 {
-	QStringList list = v_str.split(",", QString::SkipEmptyParts);
+	QStringList list = v_str.split(",", KS_SPLIT_SkipEmptyParts);
 	QVector<int> v;
 
 	for (auto item: list) {
@@ -553,7 +553,7 @@ QVector<int> parseIdList(QString v_str)
  */
 QMap<int, QVector<int>> parseTaskList(QString v_str)
 {
-	QStringList taskList = v_str.split(",", QString::SkipEmptyParts);
+	QStringList taskList = v_str.split(",", KS_SPLIT_SkipEmptyParts);
 	QVector<int> streamIds, allPids;
 	kshark_context *kshark_ctx(nullptr);
 	QMap<int, QVector<int>> ret;
diff --git a/src/KsUtils.hpp b/src/KsUtils.hpp
index cf209bce..1a97d9ea 100644
--- a/src/KsUtils.hpp
+++ b/src/KsUtils.hpp
@@ -86,6 +86,16 @@ typedef std::chrono::high_resolution_clock::time_point  hd_time;
 std::chrono::duration_cast<std::chrono::duration<double>>( \
 std::chrono::high_resolution_clock::now() - t0).count()
 
+#ifdef QT_VERSION_LESS_5_15
+
+	#define KS_SPLIT_SkipEmptyParts QString::SkipEmptyParts
+
+#else
+
+	#define KS_SPLIT_SkipEmptyParts Qt::SkipEmptyParts
+
+#endif // QT_VERSION_LESS_5_15
+
 //! @endcond
 
 namespace KsUtils {
diff --git a/src/kernelshark.cpp b/src/kernelshark.cpp
index 8ed49480..92bc1f1e 100644
--- a/src/kernelshark.cpp
+++ b/src/kernelshark.cpp
@@ -87,7 +87,7 @@ int main(int argc, char **argv)
 			break;
 
 		case 'a':
-			appInputFiles << QString(optarg).split(" ", QString::SkipEmptyParts);
+			appInputFiles << QString(optarg).split(" ", KS_SPLIT_SkipEmptyParts);
 			break;
 
 		case 'p':