EqHazard_gui.py

from __future__ import absolute_import

from builtins import object

from qgis.PyQt.QtCore import *
from qgis.PyQt.QtGui import *
from qgis.PyQt.QtWidgets import *

from qgis.core import *

from .EqHazard_QWidget import EqHazard_QWidget

from . import resources


class EqHazard_gui(object):

    def __init__(self, interface):

        self.interface = interface
        self.main_window = self.interface.mainWindow()
        self.canvas = self.interface.mapCanvas()        

        self.plugin_name = "EqHazard"

    def initGui(self):
        
        self.EqHazard_QAction = QAction(QIcon(":/plugins/EqHazard/icons/icon.png"), self.plugin_name, self.interface.mainWindow())
        self.EqHazard_QAction.setWhatsThis("Import and plot of earthquake hazard data") 
        self.EqHazard_QAction.triggered.connect(self.open_EqHazard_widget)
        self.interface.addPluginToMenu(self.plugin_name, self.EqHazard_QAction)
        self.interface.addToolBarIcon(self.EqHazard_QAction)

        self.is_EqHazard_widget_open = False

    def open_EqHazard_widget(self):
        
        if self.is_EqHazard_widget_open:
            self.warn("%s is already open" % (self.plugin_name))
            return

        EqHazard_DockWidget = QDockWidget(self.plugin_name, self.interface.mainWindow())        
        EqHazard_DockWidget.setAttribute(Qt.WA_DeleteOnClose)
        EqHazard_DockWidget.setAllowedAreas(Qt.BottomDockWidgetArea | Qt.TopDockWidgetArea)        
        self.EqHazard_QWidget = EqHazard_QWidget(self.canvas, self.plugin_name)        
        EqHazard_DockWidget.setWidget(self.EqHazard_QWidget)
        EqHazard_DockWidget.destroyed.connect(self.closeEvent)        
        self.interface.addDockWidget(Qt.BottomDockWidgetArea, EqHazard_DockWidget)
                
        self.is_EqHazard_widget_open = True

    def closeEvent(self):
        
        self.is_EqHazard_widget_open = False

    def info(self, msg):
        
        QMessageBox.information(self.interface.mainWindow(),  self.plugin_name, msg)

    def warn(self, msg):
    
        QMessageBox.warning(self.interface.mainWindow(),  self.plugin_name, msg)
                               
    def unload(self):

        self.interface.removeToolBarIcon(self.EqHazard_QAction)        
        self.interface.removePluginMenu(self.plugin_name, self.EqHazard_QAction)