tdf#128495 measure preferred size of print preview relative to UI font

Change-Id: If04f50818fc94dd62263daaebc1c386b2d85c987
Reviewed-on: https://gerrit.libreoffice.org/82791
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
diff --git a/vcl/inc/printdlg.hxx b/vcl/inc/printdlg.hxx
index 33f9a7b..5e8289d 100644
--- a/vcl/inc/printdlg.hxx
+++ b/vcl/inc/printdlg.hxx
@@ -74,6 +74,7 @@ namespace vcl
            PrintPreviewWindow(PrintDialog* pDialog);
            virtual ~PrintPreviewWindow() override;

            virtual void SetDrawingArea(weld::DrawingArea* pDrawingArea) override;
            virtual void Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;
            virtual bool Command( const CommandEvent& ) override;
            virtual void Resize() override;
diff --git a/vcl/source/window/printdlg.cxx b/vcl/source/window/printdlg.cxx
index 7750baf..4a7105a 100644
--- a/vcl/source/window/printdlg.cxx
+++ b/vcl/source/window/printdlg.cxx
@@ -145,6 +145,13 @@ void PrintDialog::PrintPreviewWindow::Resize()
    preparePreviewBitmap();
}

void PrintDialog::PrintPreviewWindow::SetDrawingArea(weld::DrawingArea* pDrawingArea)
{
    pDrawingArea->set_size_request(pDrawingArea->get_approximate_digit_width() * 55,
                                   pDrawingArea->get_text_height() * 40);
    CustomWidgetController::SetDrawingArea(pDrawingArea);
}

void PrintDialog::PrintPreviewWindow::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle&)
{
    rRenderContext.Push();
diff --git a/vcl/uiconfig/ui/printdialog.ui b/vcl/uiconfig/ui/printdialog.ui
index d346bee..1822f68 100644
--- a/vcl/uiconfig/ui/printdialog.ui
+++ b/vcl/uiconfig/ui/printdialog.ui
@@ -166,8 +166,6 @@
                        <property name="orientation">vertical</property>
                        <child>
                          <object class="GtkDrawingArea" id="preview">
                            <property name="width_request">500</property>
                            <property name="height_request">700</property>
                            <property name="visible">True</property>
                            <property name="can_focus">False</property>
                            <property name="events">GDK_STRUCTURE_MASK | GDK_SCROLL_MASK</property>