qmdiEditor: set cursor position on deferred loading

When introducing the defered loading in
5fda45e (see #17), the cursor position
was lost. Reintroduce it.

Fixes #17

src/widgets/qmdieditor.cpp

@@ -606,6 +606,15 @@ void qmdiEditor::hideTimer_timeout() {
     }
 }
 
+void qmdiEditor::goTo(int x, int y) {
+    if (documentHasBeenLoaded) {
+        textEditor->goTo(x, y);
+    } else {
+        requestedPosition.setX(x);
+        requestedPosition.setY(y);
+    }
+}
+
 void qmdiEditor::focusInEvent(QFocusEvent *event) {
 
     QWidget::focusInEvent(event);
@@ -975,6 +984,7 @@ void qmdiEditor::loadContent() {
     auto textStream = QTextStream(&file);
     textStream.seek(0);
     textEditor->setPlainText(textStream.readAll());
+    textEditor->goTo(requestedPosition.x(), requestedPosition.y());
 
     QFileInfo fileInfo(file);
     file.close();

src/widgets/qmdieditor.h

@@ -110,7 +110,7 @@ class qmdiEditor : public QWidget, public qmdiClient {
     bool autoPreview = true;
 
     // No longer inheriting Qutepart, instead use "static inheritance"
-    inline void goTo(int x, int y) { textEditor->goTo(x, y); }
+    void goTo(int x, int y);
     inline void setLineWrapMode(QPlainTextEdit::LineWrapMode mode) {
         textEditor->setLineWrapMode(mode);
     }
@@ -177,6 +177,7 @@ class qmdiEditor : public QWidget, public qmdiClient {
     bool fileModifications = true;
     QTimer *loadingTimer = nullptr;
     bool documentHasBeenLoaded = true;
+    QPoint requestedPosition;
 
     QString fileName;
     QMenu *bookmarksMenu;