def ask_user(self): # Ask the user for a factor by which to multiply all font sizes factor, ok = QInputDialog.getDouble( self.gui, 'Enter a magnification factor', 'Allow font sizes in the book will be multiplied by the specified factor', value=2, min=0.1, max=4) if ok: # Ensure any in progress editing the user is doing is present in the container self.boss.commit_all_editors_to_container() try: self.magnify_fonts(factor) except Exception: # Something bad happened report the error to the user import traceback error_dialog( self.gui, _('Failed to magnify fonts'), _('Failed to magnify fonts, click "Show details" for more info' ), det_msg=traceback.format_exc(), show=True) # Revert to the saved restore point self.boss.revert_requested( self.boss.global_undo.previous_container) else: # Show the user what changes we have made, allowing her to # revert them if necessary self.boss.show_current_diff() # Update the editor UI to take into account all the changes we # have made self.boss.apply_container_update_to_gui()
def oilify_image(self): val, ok = QInputDialog.getDouble( self, _('Oilify image'), _('The strength of the operation (higher numbers have larger effects)' ), value=4, min=0.1, max=20) if ok: self.canvas.oilify_image(radius=val)