display panel with number or warnings and lines in output window, button for jumping to next warning

doc/src/Howto_lammps_gui.rst

@@ -281,7 +281,11 @@ This text would normally be seen in the command-line window.
 LAMMPS-GUI captures the screen output from LAMMPS as it is generated and
 updates the *Output* window regularly during a run.  If there are any
 warnings or errors in the LAMMPS output, they are highlighted by using
-bold text colored in red.
+bold text colored in red.  There is a small panel at the bottom center
+of the *Output* window showing how many warnings and errors were
+detected and how many lines the entire output has.  By clicking on the
+button on the right with the warning symbol, you can jump to the next
+line with a warning or error.
 
 By default, the *Output* window is replaced each time a run is started.
 The runs are counted and the run number for the current run is displayed

tools/lammps-gui/flagwarnings.cpp

@@ -17,17 +17,22 @@
 
 #include <QColor>
 #include <QFont>
+#include <QLabel>
+#include <QTextDocument>
 
 // workaround for Qt-5.12
 #if QT_VERSION < QT_VERSION_CHECK(5, 14, 0)
 namespace QColorConstants {
-const QColor Red     = QColor::fromRgb(0xff, 0x00, 0x00);
+const QColor Red = QColor::fromRgb(0xff, 0x00, 0x00);
 } // namespace QColorConstants
 #endif
 
-FlagWarnings::FlagWarnings(QTextDocument *parent) :
+FlagWarnings::FlagWarnings(QLabel *label, QTextDocument *parent) :
-    QSyntaxHighlighter(parent), isWarning(QStringLiteral("^(ERROR|WARNING).*$"))
+    QSyntaxHighlighter(parent), isWarning(QStringLiteral("^(ERROR|WARNING).*$")), summary(label),
+    document(parent)
 {
+    nwarnings = nlines = 0;
+
     formatWarning.setForeground(QColorConstants::Red);
     formatWarning.setFontWeight(QFont::Bold);
 }
@@ -39,6 +44,16 @@ void FlagWarnings::highlightBlock(const QString &text)
 
     auto match = isWarning.match(text);
     if (match.hasMatch()) {
+        ++nwarnings;
         setFormat(match.capturedStart(0), match.capturedLength(0), formatWarning);
     }
+    if (document && summary) {
+        summary->setText(
+            QString("%1 Warnings / Errors - %2 Lines").arg(nwarnings).arg(document->lineCount()));
+        summary->repaint();
+    }
 }
+
+// Local Variables:
+// c-basic-offset: 4
+// End:

tools/lammps-gui/flagwarnings.h

@@ -18,11 +18,15 @@
 #include <QSyntaxHighlighter>
 #include <QTextCharFormat>
 
+class QLabel;
+class QTextDocument;
+
 class FlagWarnings : public QSyntaxHighlighter {
     Q_OBJECT
 
 public:
-    FlagWarnings(QTextDocument *parent = 0);
+    FlagWarnings(QLabel *label = 0, QTextDocument *parent = 0);
+    int get_nwarnings() const { return nwarnings; }
 
 protected:
     void highlightBlock(const QString &text) override;
@@ -30,6 +34,9 @@ protected:
 private:
     QRegularExpression isWarning;
     QTextCharFormat formatWarning;
+    QLabel *summary;
+    QTextDocument *document;
+    int nwarnings, nlines;
 };
 #endif
 // Local Variables:

tools/lammps-gui/lammps-gui.appdata.xml

@@ -58,6 +58,7 @@
       <description>
         Update Tutorial menu entries to cover all 8 tutorials
         Highlight warnings and error messages in Output window
+        Make Tutorial wizards more compact
       </description>
     </release>
     <release version="1.6.11" timestamp="1725080055">

tools/lammps-gui/lammpsgui.cpp

@@ -1244,7 +1244,7 @@ void LammpsGui::do_run(bool use_buffer)
     logwindow->setCenterOnScroll(true);
     logwindow->moveCursor(QTextCursor::End);
     logwindow->setWindowTitle(
-        QString("LAMMPS-GUI - Output - %2 - Run %3").arg(current_file).arg(run_counter));
+        QString("LAMMPS-GUI - Output - %1 - Run %2").arg(current_file).arg(run_counter));
     logwindow->setWindowIcon(QIcon(":/icons/lammps-icon-128x128.png"));
     QFont text_font;
     text_font.fromString(settings.value("textfont", text_font.toString()).toString());

tools/lammps-gui/lammpsgui.qrc

@@ -73,6 +73,7 @@
     <file>icons/utilities-terminal.png</file>
     <file>icons/vdw-style.png</file>
     <file>icons/vmd.png</file>
+    <file>icons/warning.png</file>
     <file>icons/window-close.png</file>
     <file>icons/x-office-drawing.png</file>
     <file>icons/yaml-file-icon.png</file>

tools/lammps-gui/logwindow.cpp

@@ -20,13 +20,18 @@
 #include <QApplication>
 #include <QFile>
 #include <QFileDialog>
+#include <QGridLayout>
+#include <QHBoxLayout>
 #include <QIcon>
 #include <QKeySequence>
+#include <QLabel>
 #include <QMenu>
 #include <QMessageBox>
+#include <QPushButton>
 #include <QRegularExpression>
 #include <QSettings>
 #include <QShortcut>
+#include <QSpacerItem>
 #include <QString>
 #include <QTextStream>
 
@@ -39,7 +44,29 @@ LogWindow::LogWindow(const QString &_filename, QWidget *parent) :
     QSettings settings;
     resize(settings.value("logx", 500).toInt(), settings.value("logy", 320).toInt());
 
-    warnings = new FlagWarnings(document());
+    summary = new QLabel("0 Warnings / Errors  -  0 Lines");
+    summary->setMargin(1);
+
+    auto *frame = new QFrame;
+    frame->setAutoFillBackground(true);
+    frame->setFrameStyle(QFrame::Box | QFrame::Plain);
+    frame->setLineWidth(2);
+
+    auto *button = new QPushButton(QIcon(":/icons/warning.png"), "");
+    button->setToolTip("Jump to next warning");
+    connect(button, &QPushButton::released, this, &LogWindow::next_warning);
+
+    auto *spacer = new QSpacerItem(0, 0, QSizePolicy::Minimum, QSizePolicy::Expanding);
+    auto *panel  = new QHBoxLayout(frame);
+    auto *grid   = new QGridLayout(this);
+
+    panel->addWidget(summary);
+    panel->addWidget(button);
+
+    grid->addItem(spacer, 0, 0, 1, 3);
+    grid->addWidget(frame, 1, 1, 1, 1);
+
+    warnings = new FlagWarnings(summary, document());
 
     auto *action = new QShortcut(QKeySequence(Qt::CTRL | Qt::Key_S), this);
     connect(action, &QShortcut::activated, this, &LogWindow::save_as);
@@ -56,6 +83,7 @@ LogWindow::LogWindow(const QString &_filename, QWidget *parent) :
 LogWindow::~LogWindow()
 {
     delete warnings;
+    delete summary;
 }
 
 void LogWindow::closeEvent(QCloseEvent *event)
@@ -84,6 +112,22 @@ void LogWindow::stop_run()
     if (main) main->stop_run();
 }
 
+void LogWindow::next_warning()
+{
+    auto *doc  = document();
+    auto regex = QRegularExpression(QStringLiteral("^(ERROR|WARNING).*$"));
+
+    if (warnings->get_nwarnings() > 0) {
+        // wrap around search
+        if (!this->find(regex)) {
+            this->moveCursor(QTextCursor::Start, QTextCursor::MoveAnchor);
+            this->find(regex);
+        }
+        // move cursor to unselect
+        this->moveCursor(QTextCursor::NextBlock, QTextCursor::MoveAnchor);
+    }
+}
+
 void LogWindow::save_as()
 {
     QString defaultname = filename + ".log";

tools/lammps-gui/logwindow.h

@@ -17,6 +17,7 @@
 #include <QPlainTextEdit>
 
 class FlagWarnings;
+class QLabel;
 
 class LogWindow : public QPlainTextEdit {
     Q_OBJECT
@@ -30,6 +31,7 @@ private slots:
     void quit();
     void save_as();
     void stop_run();
+    void next_warning();
 
 protected:
     void closeEvent(QCloseEvent *event) override;
@@ -41,6 +43,7 @@ private:
     QString filename;
     static const QString yaml_regex;
     FlagWarnings *warnings;
+    QLabel *summary;
 };
 
 #endif