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-rw-r--r--qtmips_gui/mainwindow.cpp9
1 files changed, 8 insertions, 1 deletions
diff --git a/qtmips_gui/mainwindow.cpp b/qtmips_gui/mainwindow.cpp
index 87549d2..19299c0 100644
--- a/qtmips_gui/mainwindow.cpp
+++ b/qtmips_gui/mainwindow.cpp
@@ -584,7 +584,14 @@ void MainWindow::open_source() {
file_name = QFileDialog::getOpenFileName(this, tr("Open File"), "", "Source Files (*.asm *.S *.s)");
if (!file_name.isEmpty()) {
- SrcEditor *editor = new SrcEditor();
+ SrcEditor *editor = source_editor_for_file(file_name, false);
+ if (editor != nullptr) {
+ if (central_window != nullptr)
+ central_window->setCurrentWidget(editor);
+ return;
+ }
+ editor = new SrcEditor();
+
if (editor->loadFile(file_name)) {
add_src_editor_to_tabs(editor);
} else {