Finish implementing C++ bar widget

Serial-Studio.pro

@@ -72,6 +72,26 @@ CONFIG += c++11
 CONFIG += silent
 CONFIG += strict_c++
 
+sanitize {
+    CONFIG += sanitizer
+    CONFIG += sanitize_address
+    CONFIG *= sanitize_undefined
+}
+
+QMAKE_CXXFLAGS *= -fno-math-errno
+QMAKE_CXXFLAGS *= -funsafe-math-optimizations
+
+#-----------------------------------------------------------------------------------------
+# Serial Studio compile-time settings
+#-----------------------------------------------------------------------------------------
+
+#DEFINES += DISABLE_QSU     # If enabled, QSimpleUpdater shall not be used by the app.
+                            # This is the default behaviour for MinGW.
+
+DEFINES += LAZY_WIDGETS     # Compile-time option to reduce the CPU usage of the widgets.
+                            # If disabled, widgets shall update title, units, value, etc.
+                            # If enabled, widgets shall only update their value.
+
 #-----------------------------------------------------------------------------------------
 # Libraries
 #-----------------------------------------------------------------------------------------

assets/qml/JsonEditor/JsonDatasetDelegate.qml

@@ -151,7 +151,6 @@ Widgets.Window {
             visible: widget.currentIndex == 1 || widget.currentIndex == 2
             onTextChanged: Cpp_JSON_Editor.setDatasetWidgetMin(group, dataset, text)
             validator: DoubleValidator {
-                bottom: 0
                 top: parseFloat(max.text)
             }
         }

src/Misc/ModuleManager.cpp

@@ -165,6 +165,9 @@ void ModuleManager::initializeQmlInterface()
     auto ioNetwork = IO::DataSources::Network::getInstance();
     auto miscThemeManager = Misc::ThemeManager::getInstance();
 
+    // Start common event timers
+    miscTimerEvents->startTimers();
+
     // Retranslate the QML interface automagically
     connect(miscTranslator, SIGNAL(languageChanged()), engine(), SLOT(retranslate()));
 
@@ -202,9 +205,6 @@ void ModuleManager::initializeQmlInterface()
     engine()->load(QUrl(QStringLiteral("qrc:/qml/main.qml")));
 
     // Warning! Do not call setSplashScreenMessage() after loading QML user interface
-
-    // Start common event timers
-    QTimer::singleShot(500, miscTimerEvents, SLOT(startTimers()));
 }
 
 /**

src/Widgets/Bar.cpp

@@ -42,18 +42,6 @@ Bar::Bar(const int index)
     if (m_index < 0 || m_index >= dash->barCount())
         return;
 
-    // Get thermo color
-    QString color;
-    auto barcl = theme->barWidgetColors();
-    if (barcl.count() > m_index)
-        color = barcl.at(m_index);
-    else
-        color = barcl.at(barcl.count() % m_index);
-
-    // Configure thermo style
-    m_thermo.setPipeWidth(64);
-    m_thermo.setFillBrush(QBrush(QColor(color)));
-
     // Configure label style
     QFont font = dash->monoFont();
     font.setPixelSize(24);
@@ -69,18 +57,55 @@ Bar::Bar(const int index)
     m_layout.setContentsMargins(24, 24, 24, 24);
     setLayout(&m_layout);
 
-    // Generate stylesheets
+    // Set stylesheets
     // clang-format off
-    auto labelQss = QSS("color:%1; border:1px solid %2;",
+    auto valueQSS = QSS("background-color:%1; color:%2; border:1px solid %3;",
-                        theme->datasetValue(),
+                        theme->widgetAlternativeBackground(),
-                        theme->datasetWindowBorder());
+                        theme->widgetForegroundPrimary(),
-    auto windowQss = QSS("background-color:%1",
+                        theme->widgetIndicator1());
-                         theme->datasetWindowBackground());
+    m_label.setStyleSheet(valueQSS);
     // clang-format on
 
-    // Set stylesheets
+    // Set window palette
-    setStyleSheet(windowQss);
+    QPalette windowPalette;
-    m_label.setStyleSheet(labelQss);
+    windowPalette.setColor(QPalette::Base, theme->datasetWindowBackground());
+    windowPalette.setColor(QPalette::Window, theme->datasetWindowBackground());
+    setPalette(windowPalette);
+
+    // Set thermo palette
+    QPalette thermoPalette;
+    thermoPalette.setColor(QPalette::Highlight, QColor("#f00"));
+    thermoPalette.setColor(QPalette::Text, theme->widgetIndicator1());
+    thermoPalette.setColor(QPalette::Dark, theme->widgetIndicator1());
+    thermoPalette.setColor(QPalette::Light, theme->widgetIndicator1());
+    thermoPalette.setColor(QPalette::ButtonText, theme->widgetIndicator1());
+    thermoPalette.setColor(QPalette::WindowText, theme->widgetIndicator1());
+    thermoPalette.setColor(QPalette::Base, theme->widgetAlternativeBackground());
+    m_thermo.setPalette(thermoPalette);
+
+    // Get thermo color
+    QString color;
+    auto barcl = theme->barWidgetColors();
+    if (barcl.count() > m_index)
+        color = barcl.at(m_index);
+    else
+        color = barcl.at(barcl.count() % m_index);
+
+    // Configure thermo style
+    m_thermo.setPipeWidth(64);
+    m_thermo.setBorderWidth(1);
+    m_thermo.setFillBrush(QBrush(QColor(color)));
+
+    // Lazy widgets, get initial properties from dataset
+#ifdef LAZY_WIDGETS
+    auto dataset = UI::Dashboard::getInstance()->getBar(m_index);
+    if (dataset)
+    {
+        m_thermo.setAlarmLevel(dataset->alarm());
+        m_thermo.setAlarmEnabled(m_thermo.alarmLevel() > 0);
+        m_thermo.setScale(dataset->min(), dataset->max());
+    }
+#endif
 
     // React to dashboard events
     connect(dash, SIGNAL(updated()), this, SLOT(update()));
@@ -99,9 +124,11 @@ void Bar::update()
     auto dataset = UI::Dashboard::getInstance()->getBar(m_index);
     if (dataset)
     {
+#ifndef LAZY_WIDGETS
         m_thermo.setAlarmLevel(dataset->alarm());
         m_thermo.setAlarmEnabled(m_thermo.alarmLevel() > 0);
         m_thermo.setScale(dataset->min(), dataset->max());
+#endif
         m_thermo.setValue(dataset->value().toDouble());
         m_label.setText(QString("%1 %2").arg(dataset->value(), dataset->units()));
     }
@@ -117,5 +144,6 @@ void Bar::resizeEvent(QResizeEvent *event)
     QFont font = m_label.font();
     font.setPixelSize(width / 16);
     m_label.setFont(font);
+    m_label.setMaximumHeight(event->size().height() * 0.4);
     event->accept();
 }

src/Widgets/DataGroup.cpp

@@ -48,13 +48,16 @@ DataGroup::DataGroup(const int index)
         return;
 
     // Generate widget stylesheets
-    auto font = dash->monoFont();
-    font.setBold(true);
     auto valueQSS = QSS("color:%1", theme->datasetValue());
     auto titleQSS = QSS("color:%1", theme->datasetTextPrimary());
     auto unitsQSS = QSS("color:%1", theme->datasetTextSecondary());
     auto iconsQSS = QSS("color:%1; font-weight:600;", theme->datasetTextSecondary());
-    auto windwQSS = QSS("background-color:%1", theme->datasetWindowBackground());
+
+    // Set window palette
+    QPalette windowPalette;
+    windowPalette.setColor(QPalette::Base, theme->datasetWindowBackground());
+    windowPalette.setColor(QPalette::Window, theme->datasetWindowBackground());
+    setPalette(windowPalette);
 
     // Configure scroll area container
     m_dataContainer = new QWidget(this);
@@ -92,12 +95,16 @@ DataGroup::DataGroup(const int index)
 
         // Configure elide modes
 
-        // Set label data
+        // Lazy widgets, set label initial data
+#ifdef LAZY_WIDGETS
         auto set = group->getDataset(dataset);
-        title->setText(set->title());
+        if (set)
-        value->setText(set->value());
+        {
-        if (!set->units().isEmpty())
+            title->setText(set->title());
-            units->setText(QString("[%1]").arg(set->units()));
+            if (!set->units().isEmpty())
+                units->setText(QString("[%1]").arg(set->units()));
+        }
+#endif
 
         // Set icon text
         dicon->setText("⤑");
@@ -130,9 +137,6 @@ DataGroup::DataGroup(const int index)
     m_mainLayout->setContentsMargins(0, 0, 0, 0);
     setLayout(m_mainLayout);
 
-    // Set background color
-    m_dataContainer->setStyleSheet(windwQSS);
-
     // React to dashboard events
     connect(dash, SIGNAL(updated()), this, SLOT(update()));
 }
@@ -176,10 +180,15 @@ void DataGroup::update()
     for (int i = 0; i < group->datasetCount(); ++i)
     {
         set = group->getDataset(i);
-        m_titles.at(i)->setText(set->title());
+        if (set)
-        m_values.at(i)->setText(set->value());
+        {
-        if (!set->units().isEmpty())
+#ifndef LAZY_WIDGETS
-            m_units.at(i)->setText(QString("[%1]").arg(set->units()));
+            m_titles.at(i)->setText(set->title());
+            if (!set->units().isEmpty())
+                m_units.at(i)->setText(QString("[%1]").arg(set->units()));
+#endif
+            m_values.at(i)->setText(set->value());
+        }
     }
 }
 

src/Widgets/WidgetLoader.cpp

@@ -56,13 +56,12 @@ WidgetLoader::WidgetLoader(QQuickItem *parent)
     m_window.setMinimumWidth(640);
     m_window.setMinimumHeight(480);
 
-    // Configure window style sheet
+    // Set window palette
-    // clang-format off
+    QPalette windowPalette;
     auto theme = Misc::ThemeManager::getInstance();
-    auto qss = QString("background-color: %1;").arg(
+    windowPalette.setColor(QPalette::Base, theme->datasetWindowBackground());
-                theme->datasetWindowBackground().name());
+    windowPalette.setColor(QPalette::Window, theme->datasetWindowBackground());
-    m_window.setStyleSheet(qss);
+    m_window.setPalette(windowPalette);
-    // clang-format on
 
     // Resize widget to fit QML item size
     connect(this, &QQuickPaintedItem::widthChanged, this,
@@ -367,6 +366,8 @@ void WidgetLoader::processMouseEvents(QMouseEvent *event)
         default:
             break;
     }
+
+    update();
 }
 
 /**
@@ -384,4 +385,5 @@ void WidgetLoader::processWheelEvents(QWheelEvent *event)
     };
 
     static_cast<Hack *>(m_widget)->wheelEvent(event);
+    update();
 }