small fixes

MainWindow.glade

@@ -202,7 +202,12 @@
             <property name="can-focus">True</property>
             <property name="position">800</property>
             <child>
-              <object class="GtkViewport" id="viewport1">
+              <object class="GtkScrolledWindow">
+                <property name="visible">True</property>
+                <property name="can-focus">True</property>
+                <property name="shadow-type">in</property>
+                <child>
+                  <object class="GtkViewport">
                     <property name="visible">True</property>
                     <property name="can-focus">False</property>
                     <child>
@@ -245,9 +250,11 @@
                       </object>
                     </child>
                   </object>
+                </child>
+              </object>
               <packing>
                 <property name="resize">True</property>
-                <property name="shrink">True</property>
+                <property name="shrink">False</property>
               </packing>
             </child>
             <child>

pdf_table_extractor.py

@@ -41,7 +41,6 @@ class PdfPage(Gtk.DrawingArea):
         self.page: fitz.Page = page
         pix = self.page.get_pixmap(dpi=96)  # type: ignore
         self.set_size_request(pix.width, pix.height)
-        print(f"w: {pix.width}, h: {pix.height}")
         self.set_app_paintable(True)  # type: ignore
         self.connect("draw", self.on_draw, {})
 
@@ -49,7 +48,9 @@ class PdfPage(Gtk.DrawingArea):
         # app: Application =  widget.get_window().get_application() # type: ignore
         width = widget.get_allocated_width()
         height = widget.get_allocated_height()
-        print(f"alloc w: {width}, h: {height}")
+
+        cr.set_source_rgba(255, 255, 255)
+        cr.paint()
 
         sctx = widget.get_style_context()
         Gtk.render_background(sctx, cr, 0, 0, width, height)
@@ -59,12 +60,6 @@ class PdfPage(Gtk.DrawingArea):
         cr.set_source_surface(ims, 0, 0)
         cr.paint()
 
-        cr.set_source_rgba(255, 0, 0)
-        cr.set_line_width(10)
-        cr.move_to(0, 0)
-        cr.line_to(width, height)
-        cr.stroke()
-
 
 @Gtk.Template.from_file("MainWindow.glade")
 class MainWindow(Gtk.ApplicationWindow):