qdr.app.tools/UILayoutDefinitionFormat/Samples/kde-controls.xml

<!-- Example: KDE-controls.xml -->
<?xml version="1.0" encoding="UTF-8"?>
<patterns xmlns="ui-layout-patterns">
  
  <!-- KDE/Qt-specific controls -->
  <control name="KComboBox" type="input" category="kde-specific" inherits="ComboBox">
    <constraints>
      <allowed-parents>Panel,FormField,KMainWindow</allowed-parents>
      <allowed-children>items</allowed-children>
      <container>false</container>
    </constraints>
    <attributes>
      <attribute name="completion-mode" type="enum" values="none,auto,manual,popup,shell" default="popup" />
      <attribute name="case-sensitive-completion" type="bool" default="false" />
      <attribute name="url-completion" type="bool" default="false" />
    </attributes>
  </control>
  
  <control name="KMainWindow" type="container" category="kde-specific">
    <constraints>
      <allowed-parents>window</allowed-parents>
      <allowed-children>any-control</allowed-children>
      <container>true</container>
    </constraints>
    <attributes>
      <attribute name="show-menubar" type="bool" default="true" />
      <attribute name="show-toolbar" type="bool" default="true" />
      <attribute name="show-statusbar" type="bool" default="true" />
      <attribute name="auto-save-settings" type="bool" default="true" />
    </attributes>
    <structure>
      <central-widget required="true" />
      <toolbars max-count="10" />
      <dock-widgets max-count="20" />
    </structure>
  </control>
  
  <control name="KFileDialog" type="dialog" category="kde-specific">
    <constraints>
      <allowed-parents>window</allowed-parents>
      <allowed-children>none</allowed-children>
      <container>false</container>
    </constraints>
    <attributes>
      <attribute name="start-dir" type="string" default="~/" />
      <attribute name="filter" type="string" default="*" />
      <attribute name="mode" type="enum" values="file,files,directory,save" default="file" />
      <attribute name="enable-preview" type="bool" default="true" />
    </attributes>
    <behavior>
      <event name="file-selected" />
      <event name="files-selected" />
    </behavior>
  </control>

</patterns>