Move main code inside Editor class

Before open a new file now we cleanup the Editor, so the new file get the cursor
on the first character.

3 files changed, 17 insertions, 9 deletions

diff --git a/src/editor.cc b/src/editor.cc
index 08bf005..069101f 100644
--- a/src/editor.cc
+++ b/src/editor.cc
@@ -108,3 +108,17 @@ void Editor::wheelEvent ( QWheelEvent * event )
 	}
 }
 
+void Editor::setPlainText(const QString &text)
+{
+	int y = verticalScrollBar()->sliderPosition();
+	// Save current cursor position
+	QTextCursor cursor = textCursor();
+	int n = cursor.position();
+	QTextEdit::setPlainText(text);
+	// Restore cursor position
+	if (n < text.length()) {
+		cursor.setPosition(n);
+		setTextCursor(cursor);
+		verticalScrollBar()->setSliderPosition(y);
+	}
+}
diff --git a/src/editor.h b/src/editor.h
index 09484f5..8d092a9 100644
--- a/src/editor.h
+++ b/src/editor.h
@@ -2,6 +2,7 @@
 #include <QString>
 #include <QWidget>
 #include <QWheelEvent>
+#include <QScrollBar>
 
 #include <QTextEdit>
 class Editor : public QTextEdit
@@ -9,6 +10,7 @@ class Editor : public QTextEdit
 	Q_OBJECT
 public:
 	Editor(QWidget *parent) : QTextEdit(parent) { setAcceptRichText(false); }
+	void setPlainText(const QString &text);
 public slots:
 	void zoomIn();
 	void zoomOut();
diff --git a/src/mainwin.cc b/src/mainwin.cc
index 8c21b20..1ad8bc8 100644
--- a/src/mainwin.cc
+++ b/src/mainwin.cc
@@ -75,7 +75,6 @@
 #include <QSettings>
 #include <QProgressDialog>
 #include <QMutexLocker>
-#include <QScrollBar>
 
 #include <fstream>
 
@@ -505,6 +504,7 @@ MainWindow::openFile(const QString &new_filename)
 	}
 #endif
 	setFileName(actual_filename);
+	editor->setPlainText("");
 
 	fileChangedOnDisk(); // force cached autoReloadId to update
 	refreshDocument();
@@ -606,15 +606,7 @@ void MainWindow::refreshDocument()
 			reader.setCodec("UTF-8");
 			QString text = reader.readAll();
 			PRINTB("Loaded design '%s'.", this->fileName.toLocal8Bit().constData());
-			int y = editor->verticalScrollBar()->sliderPosition();
-			// Save current cursor position
-			QTextCursor cursor = editor->textCursor();
-			int n = cursor.position();
 			editor->setPlainText(text);
-			// Restore cursor position
-			cursor.setPosition(n);
-			editor->setTextCursor(cursor);
-			editor->verticalScrollBar()->setSliderPosition(y);
 		}
 	}
 	setCurrentOutput();