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acatama.py
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# -*- coding: utf-8 -*-
"""
/***************************************************************************
AcATaMa
A QGIS plugin
AcATaMa is a Qgis plugin for Accuracy Assessment of Thematic Maps
-------------------
copyright : (C) 2017-2024 by Xavier C. Llano, SMByC
email : xavier.corredor.llano@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
import os.path
import shutil
from qgis.PyQt.QtCore import QCoreApplication, Qt
from qgis.PyQt.QtWidgets import QAction, QMessageBox
from qgis.PyQt.QtGui import QIcon
from AcATaMa.core.analysis import AccuracyAssessmentWindow
from AcATaMa.gui.acatama_dockwidget import AcATaMaDockWidget
from AcATaMa.gui.about_dialog import AboutDialog
from AcATaMa.gui.response_design_window import ResponseDesignWindow
from AcATaMa.gui.sampling_design_window import SamplingDesignWindow
from AcATaMa.utils.qgis_utils import unload_layer
from AcATaMa.gui.sampling_report import SamplingReport
# Initialize Qt resources from file resources.py
from . import resources
class AcATaMa(object):
"""QGIS Plugin Implementation."""
def __init__(self, iface):
"""Constructor.
:param iface: An interface instance that will be passed to this class
which provides the hook by which you can manipulate the QGIS
application at run time.
:type iface: QgsInterface
"""
# Save reference to the QGIS interface
self.iface = iface
# initialize plugin directory
self.plugin_dir = os.path.dirname(__file__)
# initialize locale
# locale = QSettings().value('locale/userLocale')[0:2]
# locale_path = os.path.join(self.plugin_dir, 'i18n', 'AcATaMa_{}.qm'.format(locale))
# if os.path.exists(locale_path):
# self.translator = QTranslator()
# self.translator.load(locale_path)
#
# if qVersion() > '4.3.3':
# QCoreApplication.installTranslator(self.translator)
self.menu_name_plugin = self.tr("Accuracy Assessment of Thematic Maps")
self.pluginIsActive = False
self.dockwidget = None
self.about_dialog = AboutDialog()
# noinspection PyMethodMayBeStatic
def tr(self, message):
"""Get the translation for a string using Qt translation API.
We implement this ourselves since we do not inherit QObject.
:param message: String for translation.
:type message: str, QString
:returns: Translated version of message.
:rtype: QString
"""
# noinspection PyTypeChecker,PyArgumentList,PyCallByClass
return QCoreApplication.translate("AcATaMa", message)
def initGui(self):
### Main dockwidget menu
# Create action that will start plugin configuration
icon_path = ':/plugins/AcATaMa/icons/acatama.svg'
self.dockable_action = QAction(QIcon(icon_path), "AcATaMa", self.iface.mainWindow())
# connect the action to the run method
self.dockable_action.triggered.connect(self.run)
# Add toolbar button and menu item
self.iface.addToolBarIcon(self.dockable_action)
self.iface.addPluginToMenu(self.menu_name_plugin, self.dockable_action)
# Plugin info
# Create action that will start plugin configuration
icon_path = ':/plugins/AcATaMa/icons/about.svg'
self.about_action = QAction(QIcon(icon_path), self.tr('About'), self.iface.mainWindow())
# connect the action to the run method
self.about_action.triggered.connect(self.about)
# Add toolbar button and menu item
self.iface.addPluginToMenu(self.menu_name_plugin, self.about_action)
def about(self):
self.about_dialog.show()
#--------------------------------------------------------------------------
def run(self):
"""Run method that loads and starts the plugin"""
if not self.pluginIsActive:
self.pluginIsActive = True
#print "** STARTING AcATaMa"
# dockwidget may not exist if:
# first run of plugin
# removed on close (see self.onClosePlugin method)
if self.dockwidget == None:
# Create the dockwidget (after translation) and keep reference
self.dockwidget = AcATaMaDockWidget()
# connect to provide cleanup on closing of dockwidget
self.dockwidget.closingPlugin.connect(self.onClosePlugin)
# reload
self.dockwidget.QPBtn_PluginClearReload.clicked.connect(self.clear_reload_plugin)
# show the dockwidget
# TODO: fix to allow choice of dock location
self.iface.addDockWidget(Qt.RightDockWidgetArea, self.dockwidget)
self.dockwidget.show()
#--------------------------------------------------------------------------
def onClosePlugin(self):
"""Cleanup necessary items here when plugin dockwidget is closed"""
if SamplingDesignWindow.is_opened:
self.dockwidget.sampling_design_window.closing()
self.dockwidget.sampling_design_window.reject(is_ok_to_close=True)
if ResponseDesignWindow.is_opened:
self.dockwidget.response_design_window.closing()
self.dockwidget.response_design_window.reject(is_ok_to_close=True)
if AccuracyAssessmentWindow.is_opened:
self.dockwidget.accuracy_assessment_window.closing()
self.dockwidget.accuracy_assessment_window.reject(is_ok_to_close=True)
if SamplingReport.instance_opened:
SamplingReport.instance_opened.close()
self.removes_temporary_files()
# disconnects
self.dockwidget.closingPlugin.disconnect(self.onClosePlugin)
# remove this statement if dockwidget is to remain
# for reuse if plugin is reopened
# Commented next statement since it causes QGIS crashe
# when closing the docked window:
# self.dockwidget = None
self.dockwidget.deleteLater()
self.iface.removeDockWidget(self.dockwidget)
self.dockwidget = None
self.pluginIsActive = False
from qgis.utils import reloadPlugin
reloadPlugin("AcATaMa")
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
self.removes_temporary_files()
# Remove the plugin menu item and icon
self.iface.removePluginMenu(self.menu_name_plugin, self.dockable_action)
self.iface.removePluginMenu(self.menu_name_plugin, self.about_action)
self.iface.removeToolBarIcon(self.dockable_action)
if self.dockwidget:
self.iface.removeDockWidget(self.dockwidget)
def clear_reload_plugin(self):
# first prompt
quit_msg = "Are you sure you want to: clean tmp files, delete unsaved labels, " \
"clean all fields and reload plugin?"
reply = QMessageBox.question(None, 'Clear all and reload the AcATaMa plugin.',
quit_msg, QMessageBox.Yes, QMessageBox.No)
if reply == QMessageBox.No:
return
self.onClosePlugin()
from qgis.utils import plugins
plugins["AcATaMa"].run()
def removes_temporary_files(self):
if not self.dockwidget:
return
# unload all layers instances from Qgis saved in tmp dir
try:
d = self.dockwidget.tmp_dir
files_in_tmp_dir = [os.path.join(d, f) for f in os.listdir(d)
if os.path.isfile(os.path.join(d, f))]
except: files_in_tmp_dir = []
for file_tmp in files_in_tmp_dir:
unload_layer(file_tmp)
# clear self.dockwidget.tmp_dir
if self.dockwidget.tmp_dir and os.path.isdir(self.dockwidget.tmp_dir):
shutil.rmtree(self.dockwidget.tmp_dir, ignore_errors=True)
self.dockwidget.tmp_dir = None
# clear qgis main canvas
self.iface.mapCanvas().clearCache()
self.iface.mapCanvas().refresh()