From daa0fac096029bf0d71ca3ff59ba8d44726ced6c Mon Sep 17 00:00:00 2001
From: Kenichi Kamiya <kachick1@gmail.com>
Date: Tue, 8 Apr 2025 00:57:13 +0900
Subject: [PATCH] Added CLI support for file path input

- Enabled passing a file path via CLI arguments.
- Automatically set the default filter (PSF or MIF)
  based on the file extension.
  Intentionally ignored unsupported extensions like psfu,
  consistent with current behaviors.
---
 include/mainwindow.h |  2 +-
 src/main.cpp         |  7 ++++++-
 src/mainwindow.cpp   | 23 ++++++++++++++++++++++-
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/include/mainwindow.h b/include/mainwindow.h
index 47c32d4..f0d9ffa 100644
--- a/include/mainwindow.h
+++ b/include/mainwindow.h
@@ -18,7 +18,7 @@ class MainWindow : public QMainWindow
     Q_OBJECT
 
 public:
-    explicit MainWindow(QWidget *parent = nullptr);
+    explicit MainWindow(QWidget *parent = nullptr, const QString &filePath = "");
     ~MainWindow();
 
 private slots:
diff --git a/src/main.cpp b/src/main.cpp
index cf46f05..676226a 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,7 +4,12 @@
 int main(int argc, char *argv[])
 {
     QApplication a(argc, argv);
-    MainWindow w;
+    QString filePath;
+    QStringList arguments = QCoreApplication::arguments();
+    if (arguments.size() > 1) {
+        filePath = arguments.at(1);
+    }
+    MainWindow w(nullptr, filePath);
 
     a.setStyle("fusion");
     w.show();
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 4e6ab02..5212832 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -11,7 +11,7 @@
 #include "dlgsymbinfo.h"
 #include "psfutil.h"
 
-MainWindow::MainWindow(QWidget *parent) :
+MainWindow::MainWindow(QWidget *parent, const QString &filePath) :
     QMainWindow(parent),
     selectedFilter(""),
     ui(new Ui::MainWindow)
@@ -20,6 +20,27 @@ MainWindow::MainWindow(QWidget *parent) :
     ui->listFontGlyphs->setItemDelegate(new QGlyphListWidgetItemDelegate);
     fileModified = false;
     connect(ui->widgetGlyphEditor, &QFontGlyphEditor::glyphChanged, this, &MainWindow::on_glyphChanged);
+
+    if (!filePath.isEmpty()) {
+      QFileInfo fi(filePath);
+      if (fi.exists()) {
+          currentFile.setFileName(filePath);
+
+          QString extension = fi.suffix().toLower();
+          if (extension == "psf") {
+              selectedFilter = "PSF file (*.psf)";
+          } else if (extension == "mif") {
+              selectedFilter = "Verilog MIF (*.mif)";
+          } else {
+              QMessageBox::warning(this, "Error", "Unsupported file type: " + extension);
+              return;
+          }
+
+          on_actionOpenFontFile_triggered();
+      } else {
+          QMessageBox::warning(this, "Error", "File does not exist: " + filePath);
+      }
+  }
 }
 
 MainWindow::~MainWindow() {