Added ".txt" auto-complete to filename textbox.

Author: Mich

src/mainwindow.cpp

@@ -2089,3 +2089,9 @@ void MainWindow::on_actionWhats_this_triggered()
 {
     QWhatsThis::enterWhatsThisMode();
 }
+
+void MainWindow::on_lineEditSaveFileName_editingFinished()
+{
+    if (ui->lineEditSaveFileName->text().endsWith(".txt") == false)
+        ui->lineEditSaveFileName->setText(ui->lineEditSaveFileName->text().append(".txt")); // auto-complete filename with .txt extension
+}

src/mainwindow.h

@@ -97,6 +97,7 @@ private slots:
     void on_lineEditExternalClockLabel_editingFinished();
     void on_lineEditHighlight_returnPressed();
     void on_lineEditLoadFilePath_customContextMenuRequested(const QPoint &pos);
+    void on_lineEditSaveFileName_editingFinished();
     void on_printIntroChangelog();
     void on_printLog(QPrinter *printer);
     void on_printPlot(QPrinter *printer);

src/mainwindow.ui

@@ -746,14 +746,14 @@
              <item row="1" column="1">
               <widget class="QLineEdit" name="lineEditSaveLogPath">
                <property name="sizePolicy">
-                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                  <horstretch>0</horstretch>
                  <verstretch>0</verstretch>
                 </sizepolicy>
                </property>
                <property name="minimumSize">
                 <size>
-                 <width>350</width>
+                 <width>0</width>
                  <height>25</height>
                 </size>
                </property>
@@ -829,7 +829,7 @@
              <item row="0" column="1" colspan="2">
               <widget class="QLineEdit" name="lineEditSaveFileName">
                <property name="sizePolicy">
-                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                  <horstretch>0</horstretch>
                  <verstretch>0</verstretch>
                 </sizepolicy>
@@ -879,6 +879,12 @@
                <property name="enabled">
                 <bool>true</bool>
                </property>
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="font">
                 <font>
                  <pointsize>10</pointsize>
@@ -917,7 +923,7 @@
                 <bool>true</bool>
                </property>
                <property name="sizePolicy">
-                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
                  <horstretch>0</horstretch>
                  <verstretch>0</verstretch>
                 </sizepolicy>
@@ -941,6 +947,12 @@
                <property name="enabled">
                 <bool>true</bool>
                </property>
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string>To:</string>
                </property>
@@ -954,6 +966,12 @@
                <property name="enabled">
                 <bool>true</bool>
                </property>
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Maximum" vsizetype="Fixed">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="font">
                 <font>
                  <pointsize>10</pointsize>
@@ -1013,6 +1031,12 @@
                <property name="enabled">
                 <bool>true</bool>
                </property>
+               <property name="sizePolicy">
+                <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+                 <horstretch>0</horstretch>
+                 <verstretch>0</verstretch>
+                </sizepolicy>
+               </property>
                <property name="text">
                 <string>From:</string>
                </property>
@@ -1058,7 +1082,7 @@
                 <bool>true</bool>
                </property>
                <property name="sizePolicy">
-                <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+                <sizepolicy hsizetype="Ignored" vsizetype="Preferred">
                  <horstretch>0</horstretch>
                  <verstretch>0</verstretch>
                 </sizepolicy>