safe/gui/tools/wizard/step_fc75_extent_disjoint.py
# coding=utf-8
"""InaSAFE Wizard Step Extent Disjoint."""
# noinspection PyPackageRequirements
from qgis.PyQt.QtGui import QPixmap
from safe import messaging as m
from safe.gui.tools.wizard.wizard_step import WizardStep
from safe.gui.tools.wizard.wizard_step import get_wizard_step_ui_class
from safe.utilities.i18n import tr
from safe.utilities.resources import resources_path
__copyright__ = "Copyright 2016, The InaSAFE Project"
__license__ = "GPL version 3"
__email__ = "info@inasafe.org"
__revision__ = '$Format:%H$'
FORM_CLASS = get_wizard_step_ui_class(__file__)
class StepFcExtentDisjoint(WizardStep, FORM_CLASS):
"""Function Centric Wizard Step: Extent Disjoints"""
def is_ready_to_next_step(self):
"""Check if the step is complete.
If so, there is no reason to block the Next button.
:returns: True if new step may be enabled.
:rtype: bool
"""
# Never go further if layers disjoint!
return False
def get_next_step(self):
"""Find the proper step when user clicks the Next button.
:returns: The step to be switched to.
:rtype: WizardStep instance or None
"""
return None
def set_widgets(self):
"""Set widgets on the Extent Disjoint tab."""
self.lblIconDisjoint_3.setPixmap(
QPixmap(resources_path('img', 'wizard', 'icon-stop.svg')))
@property
def step_name(self):
"""Get the human friendly name for the wizard step.
:returns: The name of the wizard step.
:rtype: str
"""
# noinspection SqlDialectInspection,SqlNoDataSourceInspection
return tr('Extent Layers')
def help_content(self):
"""Return the content of help for this step wizard.
We only needs to re-implement this method in each wizard step.
:returns: A message object contains help.
:rtype: m.Message
"""
message = m.Message()
message.add(m.Paragraph(tr(
'In this wizard step: {step_name}, you will know that your '
'exposure and hazard layer (and aggregation) do not intersect '
'with your extent that you select previously. You can not go '
'forward and you need to change the extent to run an analysis.'
).format(step_name=self.step_name)))
return message