quick_dem_for_jp.py

# -*- coding: utf-8 -*-
"""
/***************************************************************************
 QuickDEMforJP
                                 A QGIS plugin
 The plugin to convert DEM to GeoTiff and Terrain RGB (Tiff).
 Generated by Plugin Builder: http://g-sherman.github.io/Qgis-Plugin-Builder/
                             -------------------
        begin                : 2021-05-31
        git sha              : $Format:%H$
        copyright            : (C) 2021 by MIERUNE Inc.
        email                : info@mierune.co.jp
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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.                                   *
 *                                                                         *
 ***************************************************************************/
"""

from PyQt5.QtCore import QSettings, QTranslator, qVersion, QCoreApplication
from PyQt5.QtGui import QIcon
from PyQt5.QtWidgets import QAction

# Import the code for the dialog
from .contents import Contents

import os.path


class QuickDEMforJP:
    """QGIS Plugin Implementation."""

    def __init__(self, iface):
        # Save reference to the QGIS interface
        self.iface = iface
        # initialize plugin directory
        self.plugin_dir = os.path.dirname(__file__)
        self.icon_path = os.path.join(self.plugin_dir, "icon.png")
        # initialize locale
        if QSettings().value("locale/userLocale") is not None:
            locale = QSettings().value("locale/userLocale")[0:2]
        else:
            locale = "en"
        locale_path = os.path.join(
            self.plugin_dir, "i18n", "QuickDEMforJP_{}.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)

        # Declare instance attributes
        self.actions = []
        self.menu = self.tr("&Quick_DEM_for_JP")

        # Check if plugin was started the first time in current QGIS session
        # Must be set in initGui() to survive plugin reloads
        self.first_start = None

    # noinspection PyMethodMayBeStatic
    def tr(self, message):
        # noinspection PyTypeChecker,PyArgumentList,PyCallByClass
        return QCoreApplication.translate("QuickDEMforJP", message)

    def add_action(
        self,
        icon_path,
        text,
        callback,
        enabled_flag=True,
        add_to_menu=True,
        add_to_toolbar=True,
        status_tip=None,
        whats_this=None,
        parent=None,
    ):

        icon = QIcon(icon_path)
        action = QAction(icon, text, parent)
        action.triggered.connect(callback)
        action.setEnabled(enabled_flag)

        if status_tip is not None:
            action.setStatusTip(status_tip)

        if whats_this is not None:
            action.setWhatsThis(whats_this)

        if add_to_toolbar:
            # Adds plugin icon to Plugins toolbar
            self.iface.addToolBarIcon(action)

        if add_to_menu:
            self.iface.addPluginToMenu(self.menu, action)

        self.actions.append(action)

        return action

    def initGui(self):
        """Create the menu entries and toolbar icons inside the QGIS GUI."""

        self.add_action(
            self.icon_path,
            text=self.tr("Quick_DEM_for_JP"),
            callback=self.dialog_show,
            parent=self.iface.mainWindow(),
        )

        # will be set False in run()
        self.first_start = True

    def unload(self):
        """Removes the plugin menu item and icon from QGIS GUI."""
        for action in self.actions:
            self.iface.removePluginMenu(self.tr("&Quick_DEM_for_JP"), action)
            self.iface.removeToolBarIcon(action)

    def dialog_show(self):
        self.contents = Contents(self.iface)
        self.contents.dlg.show()