From f1f21d4f35dce80d0482d773adadee8f2d4ef91c Mon Sep 17 00:00:00 2001
From: Ernie Pasveer <epasveer@att.net>
Date: Sun, 21 Nov 2021 12:00:15 -0600
Subject: [PATCH] Add mode to hide/show system processes.

---
 src/QProcessInfo.cpp        | 12 ++++++++--
 src/QProcessInfo.h          |  2 +-
 src/SeerSlashProcWidget.cpp |  3 ++-
 src/SeerSlashProcWidget.h   | 10 ++++----
 src/SeerSlashProcWidget.ui  | 46 ++++++++++++++++++++++++-------------
 5 files changed, 48 insertions(+), 25 deletions(-)

diff --git a/src/QProcessInfo.cpp b/src/QProcessInfo.cpp
index 1cc24d0..d931a6b 100644
--- a/src/QProcessInfo.cpp
+++ b/src/QProcessInfo.cpp
@@ -11,7 +11,7 @@
 #include <QStandardPaths>
 #include <QTextStream>
 
-QProcessList QProcessInfo::enumerate() {
+QProcessList QProcessInfo::populate(bool showSystemProcesses) {
 
     QProcessList ret;
 
@@ -90,7 +90,15 @@ QProcessList QProcessInfo::enumerate() {
                 cmdline.close();
             }
 
-            ret.push_back(info);
+            // Add the process to the list. If it is a system process ([]), only add it
+            // if we're allowed.
+            if (info.name()[0] == '[') {
+                if (showSystemProcesses == true) {
+                    ret.push_back(info);
+                }
+            }else{
+                ret.push_back(info);
+            }
         }
     }
 
diff --git a/src/QProcessInfo.h b/src/QProcessInfo.h
index 62d8ec1..cc632e6 100644
--- a/src/QProcessInfo.h
+++ b/src/QProcessInfo.h
@@ -10,7 +10,7 @@ class QProcessInfo {
     public:
         QProcessInfo();
 
-        static QProcessList enumerate();
+        static QProcessList populate(bool showSystemProcesses);
 
         uint32_t            pid                 () const;
         void                setPid              (uint32_t pid);
diff --git a/src/SeerSlashProcWidget.cpp b/src/SeerSlashProcWidget.cpp
index 6008b8e..3aee25c 100644
--- a/src/SeerSlashProcWidget.cpp
+++ b/src/SeerSlashProcWidget.cpp
@@ -47,6 +47,7 @@ SeerSlashProcWidget::SeerSlashProcWidget (QWidget* parent) : QWidget(parent) {
     processTreeWidget->resizeColumnToContents(2);
     processTreeWidget->setSortingEnabled(true);
     processTreeWidget->clear();
+    systemProcessesCheckBox->setChecked(false);
 
     // Connect things.
     QObject::connect(searchLineEdit,     &QLineEdit::textChanged,            this,  &SeerSlashProcWidget::handleSearchLineEdit);
@@ -97,7 +98,7 @@ void SeerSlashProcWidget::refresh () {
     QApplication::setOverrideCursor(Qt::BusyCursor);
 
     // Scan the /proc file system.
-    QProcessList list = QProcessInfo::enumerate();
+    QProcessList list = QProcessInfo::populate(systemProcessesCheckBox->isChecked());
 
     // Loop through each entry and add it to our view.
     processTreeWidget->clear();
diff --git a/src/SeerSlashProcWidget.h b/src/SeerSlashProcWidget.h
index 99a2b6c..8880512 100644
--- a/src/SeerSlashProcWidget.h
+++ b/src/SeerSlashProcWidget.h
@@ -12,15 +12,15 @@ class SeerSlashProcWidget : public QWidget, protected Ui::SeerSlashProcWidgetFor
         explicit SeerSlashProcWidget (QWidget* parent = 0);
        ~SeerSlashProcWidget ();
 
-        int                 selectedPid                 () const;
-        QString             selectedName                () const;
-        QString             selectedCommandLine         () const;
+        int                 selectedPid                     () const;
+        QString             selectedName                    () const;
+        QString             selectedCommandLine             () const;
 
     public slots:
-        void                refresh                     ();
+        void                refresh                         ();
 
     protected slots:
-        void                handleSearchLineEdit        (const QString& text);
+        void                handleSearchLineEdit            (const QString& text);
 
     protected:
     private:
diff --git a/src/SeerSlashProcWidget.ui b/src/SeerSlashProcWidget.ui
index 41aa4a8..61dded1 100644
--- a/src/SeerSlashProcWidget.ui
+++ b/src/SeerSlashProcWidget.ui
@@ -14,20 +14,7 @@
    <string>System Process Browser</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
-   <item row="0" column="0">
-    <widget class="QLineEdit" name="searchLineEdit">
-     <property name="toolTip">
-      <string>Search in the list of processes. &quot;*&quot; is allowed.</string>
-     </property>
-     <property name="statusTip">
-      <string/>
-     </property>
-     <property name="placeholderText">
-      <string>Search...</string>
-     </property>
-    </widget>
-   </item>
-   <item row="0" column="1">
+   <item row="0" column="2">
     <widget class="QToolButton" name="refreshToolButton">
      <property name="toolTip">
       <string>Refresh the list of processes.</string>
@@ -36,11 +23,12 @@
       <string/>
      </property>
      <property name="icon">
-      <iconset theme="view-refresh"/>
+      <iconset theme="view-refresh">
+       <normaloff>.</normaloff>.</iconset>
      </property>
     </widget>
    </item>
-   <item row="1" column="0" colspan="2">
+   <item row="1" column="0" colspan="3">
     <widget class="QTreeWidget" name="processTreeWidget">
      <property name="sortingEnabled">
       <bool>true</bool>
@@ -65,6 +53,32 @@
      </column>
     </widget>
    </item>
+   <item row="0" column="0">
+    <widget class="QLineEdit" name="searchLineEdit">
+     <property name="toolTip">
+      <string>Search in the list of processes. &quot;*&quot; is allowed.</string>
+     </property>
+     <property name="statusTip">
+      <string/>
+     </property>
+     <property name="placeholderText">
+      <string>Search...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QCheckBox" name="systemProcessesCheckBox">
+     <property name="toolTip">
+      <string>Show system processes or hide them.</string>
+     </property>
+     <property name="text">
+      <string>System Processes</string>
+     </property>
+     <property name="checked">
+      <bool>false</bool>
+     </property>
+    </widget>
+   </item>
   </layout>
  </widget>
  <resources/>