Add Automatic Height option to UI and enable by default

Brings UI default settings in line with CLI default settings

backend_qt/qzint.cpp

@@ -27,7 +27,7 @@ namespace Zint {
 
     QZint::QZint() {
         m_symbol = BARCODE_CODE128;
-        m_height = 50;
+        m_height = 0;
         m_border = NO_BORDER;
         m_borderWidth = 0;
         m_securityLevel = -1;

frontend_qt/mainWindow.ui

@@ -308,8 +308,8 @@ Remember to place [square brackets] around AI data</string>
                    <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
-&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Noto Sans [monotype]'; font-size:9pt; font-weight:400; font-style:normal;&quot;&gt;
+&lt;/style&gt;&lt;/head&gt;&lt;body style=&quot; font-family:'Noto Sans'; font-size:10pt; font-weight:400; font-style:normal;&quot;&gt;
-&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Sans Serif';&quot;&gt;Your Data Here!&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+&lt;p style=&quot; margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;&quot;&gt;&lt;span style=&quot; font-family:'Sans Serif'; font-size:9pt;&quot;&gt;Your Data Here!&lt;/span&gt;&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
                   </property>
                   <property name="acceptRichText">
                    <bool>false</bool>
@@ -331,7 +331,10 @@ p, li { white-space: pre-wrap; }
            <item>
             <layout class="QGridLayout" name="gridLayout">
              <item row="0" column="0">
-              <widget class="QLabel" name="label_3">
+              <widget class="QLabel" name="lblHeight">
+               <property name="enabled">
+                <bool>false</bool>
+               </property>
                <property name="text">
                 <string>&amp;Height:</string>
                </property>
@@ -384,6 +387,9 @@ p, li { white-space: pre-wrap; }
              </item>
              <item row="0" column="1">
               <widget class="QSpinBox" name="heightb">
+               <property name="enabled">
+                <bool>false</bool>
+               </property>
                <property name="toolTip">
                 <string>Overall symbol height</string>
                </property>
@@ -522,6 +528,19 @@ p, li { white-space: pre-wrap; }
              </item>
             </layout>
            </item>
+           <item>
+            <widget class="QCheckBox" name="chkAutoHeight">
+             <property name="enabled">
+              <bool>true</bool>
+             </property>
+             <property name="text">
+              <string>Automatic Height</string>
+             </property>
+             <property name="checked">
+              <bool>true</bool>
+             </property>
+            </widget>
+           </item>
            <item>
             <widget class="QCheckBox" name="chkHRTHide">
              <property name="toolTip">

frontend_qt/mainwindow.cpp

@@ -160,6 +160,7 @@ MainWindow::MainWindow(QWidget* parent, Qt::WindowFlags fl)
 	connect(btnMoreData, SIGNAL(clicked( bool )), SLOT(open_data_dialog()));
 	connect(btnSequence, SIGNAL(clicked( bool )), SLOT(open_sequence_dialog()));
 	connect(chkHRTHide, SIGNAL(stateChanged( int )), SLOT(update_preview()));
+    connect(chkAutoHeight, SIGNAL(stateChanged( int )), SLOT(autoheight_clicked()));
     connect(btnCopySVG, SIGNAL(clicked( bool )), SLOT(copy_to_clipboard_svg()));
     connect(btnCopyBMP, SIGNAL(clicked( bool )), SLOT(copy_to_clipboard_bmp()));
 }
@@ -329,6 +330,18 @@ void MainWindow::on_bgcolor_clicked()
         }
 }
 
+void MainWindow::autoheight_clicked()
+{
+    if (chkAutoHeight->isChecked()) {
+        lblHeight->setEnabled(false);
+        heightb->setEnabled(false);
+    } else {
+        lblHeight->setEnabled(true);
+        heightb->setEnabled(true);
+    }
+    update_preview();
+}
+
 void MainWindow::change_print_scale()
 {
 	/* This value is only used when printing (saving) to file */
@@ -1032,7 +1045,11 @@ void MainWindow::update_preview()
 
 	m_bc.bc.setBorderType((Zint::QZint::BorderType)(btype->currentIndex()*2));
 	m_bc.bc.setBorderWidth(bwidth->value());
-	m_bc.bc.setHeight(heightb->value());
+    if(chkAutoHeight->isChecked()) {
+        m_bc.bc.setHeight(0);
+    } else {
+        m_bc.bc.setHeight(heightb->value());
+    }
 	m_bc.bc.setWhitespace(spnWhitespace->value());
 	m_bc.bc.setFgColor(m_fgcolor);
 	m_bc.bc.setBgColor(m_bgcolor);

frontend_qt/mainwindow.h

@@ -121,6 +121,7 @@ public slots:
 	void composite_ean_check();
 	void maxi_primary();
 	void change_print_scale();
+	void autoheight_clicked();
 
 protected:
     void resizeEvent(QResizeEvent *event);