QML Dialog dont fit content

[Lays147]

Hi, I'm trying to do a settings dialog for my app, I'm using extern item that I wrote it, kind following OO orientation on my QML code. But even adding width and height on the extern files, when I load the dialog, it loads small. From the documentation, it says that the QML Dialog should resize to fit the content, but that don't happen. Any tip on how to solve it? Thanks
Follow the code of the dialog:

import QtQuick 2.7
import QtQuick.Dialogs 1.2
import QtQuick.Controls 1.4
import QtQuick.Window 2.2
import QtQuick.Layouts 1.3

Dialog {
  id: printerSettingsDialog
  visible: false
  title: qsTr("General Settings")
  standardButtons: StandardButton.Save | StandardButton.Cancel

  TabView {
  id: tabs
  anchors.fill: parent

  Tab {
  id: bedSettings
  title: qsTr("Bed:")
  BedSettings {
  id: bedTab
  }
  }
  Tab {
  id: extruderSettings
  title: qsTr("HotEnd:")
  ExtruderSettings {
  id: extruderTab
  }
  }
  } //End TabView

  onAccepted: {/*TODO: Save on Settings profile*/}
  onRejected: {/*TODO: Discard changes*/}
}

[p3c0]

@Lays147 The docs says:

... and Dialog will attempt to size itself to fit the content and the buttons.

So it tries to do so but I guess it might fail too.
Also you have not specified width and height for its child TabView. Try specifying one so that Dialog may be resized to that size.
Making TabView child of contentItem will solve out the problem but removes the buttons too. You can create those in your code.

[Lays147]

@p3c0 I already tried to set width and height in all ways that I could imagine, and don't work. :(

[Lays147]

Also, contentItem dont solve the problem, already tried that. I already tried everything that I know, but the dialog continues to trigger in a small size.
Im thinking in abandon that and do a dialog by myself using rectangle and see what happens.

[p3c0]

@Lays147 Make TabView child of Dialog's contentItem. Set its implicitWidth and implicitHeight. Try this:

Dialog {
    id: printerSettingsDialog
    visible: true
    title: qsTr("General Settings")
    standardButtons: StandardButton.Save | StandardButton.Cancel

    contentItem: TabView {
        id: tabs
        implicitWidth: 800
        implicitHeight: 400

        Tab {
            id: bedSettings
            title: qsTr("Bed:")

        }
        Tab {
            id: extruderSettings
            title: qsTr("HotEnd:")

        }
    } //End TabView
}

Then add your own buttons.