New LabeledSeparator widget

CMakeLists.txt

@@ -139,6 +139,7 @@ add_executable(Bloom
     src/Insight/UserInterfaces/InsightWindow/AboutWindow.cpp
     src/Insight/UserInterfaces/InsightWindow/Widgets/PanelWidget.cpp
     src/Insight/UserInterfaces/InsightWindow/Widgets/RotatableLabel.cpp
+    src/Insight/UserInterfaces/InsightWindow/Widgets/LabeledSeparator.cpp
     src/Insight/UserInterfaces/InsightWindow/Widgets/SvgWidget.cpp
     src/Insight/UserInterfaces/InsightWindow/Widgets/SvgToolButton.cpp
     src/Insight/UserInterfaces/InsightWindow/Widgets/ClickableWidget.cpp

src/Insight/UserInterfaces/InsightWindow/UiLoader.cpp

@@ -5,6 +5,7 @@
 // Custom widgets
 #include "Widgets/PanelWidget.hpp"
 #include "Widgets/RotatableLabel.hpp"
+#include "Widgets/LabeledSeparator.hpp"
 #include "Widgets/SvgWidget.hpp"
 #include "Widgets/SvgToolButton.hpp"
 #include "Widgets/ExpandingHeightScrollAreaWidget.hpp"
@@ -33,6 +34,15 @@ UiLoader::UiLoader(QObject* parent): QUiLoader(parent) {
                 return widget;
             }
         },
+        {
+            "LabeledSeparator",
+            [this] (QWidget* parent, const QString& name) {
+                auto* widget = new LabeledSeparator(parent);
+                widget->setObjectName(name);
+                widget->setStyleSheet(parent->styleSheet());
+                return widget;
+            }
+        },
         {
             "ExpandingHeightScrollAreaWidget",
             [this] (QWidget* parent, const QString& name) {

src/Insight/UserInterfaces/InsightWindow/Widgets/LabeledSeparator.cpp

@@ -0,0 +1,35 @@
+#include "LabeledSeparator.hpp"
+
+using namespace Bloom::Widgets;
+
+LabeledSeparator::LabeledSeparator(QString title, QWidget* parent): title(std::move(title)), QWidget(parent) {
+    this->setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
+    this->setFixedHeight(LabeledSeparator::DEFAULT_HEIGHT);
+}
+
+void LabeledSeparator::paintEvent(QPaintEvent* event) {
+    auto painter = QPainter(this);
+    this->drawWidget(painter);
+}
+
+void LabeledSeparator::drawWidget(QPainter& painter) {
+    const auto fontMetrics = painter.fontMetrics();
+    const auto titleSize = fontMetrics.size(Qt::TextFlag::TextSingleLine, this->title);
+    const auto titleRect = QRect(
+        QPoint(this->marginLeft, (this->height() - titleSize.height()) / 2),
+        titleSize
+    );
+
+    const auto lineYPosition = titleRect.y() + (titleRect.height() / 2);
+    const auto line = QLine(
+        titleRect.right() + 8,
+        lineYPosition,
+        this->width() - this->marginRight,
+        lineYPosition
+    );
+
+    painter.drawText(titleRect, Qt::AlignCenter, this->title);
+
+    painter.setPen(this->lineColor);
+    painter.drawLine(line);
+}

src/Insight/UserInterfaces/InsightWindow/Widgets/LabeledSeparator.hpp

@@ -0,0 +1,67 @@
+#pragma once
+
+#include <QWidget>
+#include <QString>
+#include <QColor>
+#include <QPaintEvent>
+#include <QPainter>
+
+namespace Bloom::Widgets
+{
+    class LabeledSeparator: public QWidget
+    {
+        Q_OBJECT
+        Q_PROPERTY(QString title READ getTitle WRITE setTitle DESIGNABLE true)
+        Q_PROPERTY(QColor lineColor READ getLineColor WRITE setLineColor DESIGNABLE true)
+        Q_PROPERTY(int marginLeft READ getMarginLeft WRITE setMarginLeft DESIGNABLE true)
+        Q_PROPERTY(int marginRight READ getMarginRight WRITE setMarginRight DESIGNABLE true)
+
+    public:
+        explicit LabeledSeparator(QString title = "", QWidget* parent = nullptr);
+        explicit LabeledSeparator(QWidget* parent = nullptr): LabeledSeparator("", parent) {};
+
+        [[nodiscard]] QString getTitle() const {
+            return this->title;
+        }
+
+        void setTitle(const QString& title) {
+            this->title = title;
+        }
+
+        [[nodiscard]] QColor getLineColor() const {
+            return this->lineColor;
+        }
+
+        void setLineColor(QColor lineColor) {
+            this->lineColor = lineColor;
+        }
+
+        [[nodiscard]] int getMarginLeft() const {
+            return this->marginLeft;
+        }
+
+        void setMarginLeft(int marginLeft) {
+            this->marginLeft = marginLeft;
+        }
+
+        [[nodiscard]] int getMarginRight() const {
+            return this->marginRight;
+        }
+
+        void setMarginRight(int marginRight) {
+            this->marginRight = marginRight;
+        }
+
+    protected:
+        void paintEvent(QPaintEvent* event) override;
+        void drawWidget(QPainter& painter);
+
+    private:
+        static constexpr int DEFAULT_HEIGHT = 20;
+
+        QString title;
+        QColor lineColor = QColor(0x4A, 0x4A, 0x4A);
+        int marginLeft = 0;
+        int marginRight = 10;
+    };
+}