[needs-docs] Use a combo box in layout SVG settings dialog for text export format

This makes it match the label engine settings dialog, and opens the possibility
for additional text export modes to be added in future.

(cherry picked from commit 7b426c0)

Author: nyalldawson

src/app/layout/qgslayoutdesignerdialog.cpp

@@ -4000,7 +4000,11 @@ bool QgsLayoutDesignerDialog::getSvgExportSettings( QgsLayoutExporter::SvgExport
   QDialog dialog;
   Ui::QgsSvgExportOptionsDialog options;
   options.setupUi( &dialog );
-  options.chkTextAsOutline->setChecked( prevTextRenderFormat == QgsRenderContext::TextFormatAlwaysOutlines );
+
+  options.mTextRenderFormatComboBox->addItem( tr( "Always Export Text as Paths (Recommended)" ), QgsRenderContext::TextFormatAlwaysOutlines );
+  options.mTextRenderFormatComboBox->addItem( tr( "Always Export Text as Text Objects" ), QgsRenderContext::TextFormatAlwaysText );
+
+  options.mTextRenderFormatComboBox->setCurrentIndex( options.mTextRenderFormatComboBox->findData( prevTextRenderFormat ) );
   options.chkMapLayersAsGroup->setChecked( layersAsGroup );
   options.mClipToContentGroupBox->setChecked( cropToContents );
   options.mForceVectorCheckBox->setChecked( previousForceVector );
@@ -4020,7 +4024,7 @@ bool QgsLayoutDesignerDialog::getSvgExportSettings( QgsLayoutExporter::SvgExport
   marginBottom = options.mBottomMarginSpinBox->value();
   marginLeft = options.mLeftMarginSpinBox->value();
   includeMetadata = options.mIncludeMetadataCheckbox->isChecked();
-  QgsRenderContext::TextRenderFormat textRenderFormat = options.chkTextAsOutline->isChecked() ? QgsRenderContext::TextFormatAlwaysOutlines : QgsRenderContext::TextFormatAlwaysText;
+  QgsRenderContext::TextRenderFormat textRenderFormat = static_cast< QgsRenderContext::TextRenderFormat >( options.mTextRenderFormatComboBox->currentData().toInt() );
 
   if ( mLayout )
   {

src/ui/layout/qgssvgexportoptions.ui

@@ -19,8 +19,8 @@
      <property name="title">
       <string>SVG Options</string>
      </property>
-     <layout class="QVBoxLayout" name="verticalLayout_2">
-      <item>
+     <layout class="QGridLayout" name="gridLayout" columnstretch="0,1">
+      <item row="0" column="0" colspan="2">
        <widget class="QCheckBox" name="chkMapLayersAsGroup">
         <property name="text">
          <string>Export map layers as SVG groups (may affect label placement)</string>
@@ -30,23 +30,17 @@
         </property>
        </widget>
       </item>
-      <item>
-       <widget class="QCheckBox" name="chkTextAsOutline">
-        <property name="enabled">
-         <bool>true</bool>
-        </property>
-        <property name="toolTip">
-         <string>Uncheck to render map labels as text objects. This will degrade the quality of the map labels but allow editing in vector illustration software.</string>
-        </property>
+      <item row="3" column="1">
+       <widget class="QComboBox" name="mTextRenderFormatComboBox"/>
+      </item>
+      <item row="3" column="0">
+       <widget class="QLabel" name="label_6">
         <property name="text">
-         <string>Render map labels as outlines</string>
-        </property>
-        <property name="checked">
-         <bool>true</bool>
+         <string>Text export</string>
         </property>
        </widget>
       </item>
-      <item>
+      <item row="1" column="0" colspan="2">
        <widget class="QCheckBox" name="mForceVectorCheckBox">
         <property name="toolTip">
          <string>If checked, the layout will always be kept as vector objects when exported to a compatible format, even if the appearance of the resultant file does not match the layouts settings. If unchecked, some elements in the layout may be rasterized in order to keep their appearance intact.</string>
@@ -56,7 +50,7 @@
         </property>
        </widget>
       </item>
-      <item>
+      <item row="2" column="0" colspan="2">
        <widget class="QCheckBox" name="mIncludeMetadataCheckbox">
         <property name="text">
          <string>Export RDF metadata</string>
@@ -214,9 +208,9 @@
  </customwidgets>
  <tabstops>
   <tabstop>chkMapLayersAsGroup</tabstop>
-  <tabstop>chkTextAsOutline</tabstop>
   <tabstop>mForceVectorCheckBox</tabstop>
   <tabstop>mIncludeMetadataCheckbox</tabstop>
+  <tabstop>mTextRenderFormatComboBox</tabstop>
   <tabstop>mClipToContentGroupBox</tabstop>
   <tabstop>mTopMarginSpinBox</tabstop>
   <tabstop>mLeftMarginSpinBox</tabstop>