Add DigitLabelHelper, which centralizes integer display formatting

2 files changed, 46 insertions, 7 deletions

diff --git a/gui/digitlabel.cc b/gui/digitlabel.cc
index 8314943..a24a1e1 100644
--- a/gui/digitlabel.cc
+++ b/gui/digitlabel.cc
@@ -16,6 +16,7 @@
 // along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 #include "digitlabel.h"
+#include "digitlabelhelper.h"
 #include "gui.h"
 
 DigitLabel::DigitLabel(QWidget *parent) : QLabel(parent) { setText(QString()); }
@@ -42,11 +43,6 @@ void DigitLabel::on_hex_toggle(bool is_hex)
 void DigitLabel::update_display()
 {
 	QString t;
-	if (this->is_cleared) {
-		setText(QString());
-	} else {
-		t = (this->is_hex) ? QString::number(this->v, 16).toUpper()
-						   : QString::number(this->v);
-		setText(t);
-	}
+	t = DigitLabelHelper::format_value(this->v, this->is_hex, this->is_cleared);
+	setText(t);
 }
diff --git a/gui/digitlabelhelper.h b/gui/digitlabelhelper.h
new file mode 100644
index 0000000..a0f845f
--- /dev/null
+++ b/gui/digitlabelhelper.h
@@ -0,0 +1,43 @@
+// Simulator for the RISC-V[ECTOR] mini-ISA
+// Copyright (C) 2025 Siddarth Suresh
+// Copyright (C) 2025 bdunahu
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef DIGITLABELHELPER_H
+#define DIGITLABELHELPER_H
+
+#include <QString>
+
+class DigitLabelHelper
+{
+  public:
+	/**
+	 * Contains the main formatting logic used to format integers.
+	 * @param the value to be formated
+	 * @param if the value should be displayed in hex. If false, displays in
+	 * decimal.
+	 * @param if the value should display.
+	 * @return a string respecting the above parameters.
+	 */
+	static QString format_value(int value, bool is_hex, bool is_cleared = false)
+	{
+		if (is_cleared)
+			return QString();
+		return is_hex ? QString::number(value, 16).toUpper()
+					  : QString::number(value);
+	}
+};
+
+#endif // DIGITLABELHELPER_H