rename header files from *.h to *.hpp

src/widgets/resizingtextedit.hpp

@@ -0,0 +1,51 @@
+#pragma once
+
+#include <QKeyEvent>
+#include <QTextEdit>
+#include <boost/signals2.hpp>
+
+class ResizingTextEdit : public QTextEdit
+{
+public:
+    ResizingTextEdit()
+        : keyPressed()
+    {
+        auto sizePolicy = this->sizePolicy();
+        sizePolicy.setHeightForWidth(true);
+        sizePolicy.setVerticalPolicy(QSizePolicy::Preferred);
+        this->setSizePolicy(sizePolicy);
+
+        QObject::connect(this, &QTextEdit::textChanged, this, &QWidget::updateGeometry);
+    }
+
+    QSize sizeHint() const override
+    {
+        return QSize(this->width(), this->heightForWidth(this->width()));
+    }
+
+    bool hasHeightForWidth() const override
+    {
+        return true;
+    }
+
+    boost::signals2::signal<void(QKeyEvent *)> keyPressed;
+
+protected:
+    int heightForWidth(int) const override
+    {
+        auto margins = this->contentsMargins();
+
+        return margins.top() + document()->size().height() + margins.bottom() + 5;
+    }
+
+    void keyPressEvent(QKeyEvent *event) override
+    {
+        event->ignore();
+
+        keyPressed(event);
+
+        if (!event->isAccepted()) {
+            QTextEdit::keyPressEvent(event);
+        }
+    }
+};