digitizingtools.py

# -*- coding: utf-8 -*-
"""
/***************************************************************************
 DigitizingTools
 A QGIS plugin
 Subsumes different tools useful during digitizing sessions
 some code adopted/adapted from:
 'CadTools Plugin', Copyright (C) Stefan Ziegler
                             -------------------
        begin                : 2013-02-25
        copyright          : (C) 2013 by Bernhard Ströbl
        email                : bernhard.stroebl@jena.de
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   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 the PyQt and QGIS libraries
from PyQt4 import QtCore,  QtGui
from qgis.core import *
from dtDialog import DigitizingToolsAbout
import os.path,  sys
# Set up current path.
currentPath = os.path.dirname( __file__ )
sys.path.append(os.path.abspath(os.path.dirname(__file__) + '/tools'))

#import the tools
import dtsplitmultipart
import dtcutter
import dtfillring
import dtfillgap
import dtsplitter
import dtprolongline
import dtmovenodebyarea
import dtmovesidebydistance
import dtmovesidebyarea

class DigitizingTools:
    """Main class for the plugin"""
    def __init__(self, iface):
        # Save reference to the QGIS interface
        self.iface = iface
        # initialize plugin directory
        self.plugin_dir = QtCore.QFileInfo(QgsApplication.qgisUserDbFilePath()).path() + "/python/plugins/DigitizingTools"
        # initialize locale
        localePath = ""
        locale = QtCore.QSettings().value("locale/userLocale", "en",  type=str)[0:2]

        if QtCore.QFileInfo(self.plugin_dir).exists():
            localePath = self.plugin_dir + "/i18n/digitizingtools_" + locale + ".qm"

        if QtCore.QFileInfo(localePath).exists():
            self.translator = QtCore.QTranslator()
            self.translator.load(localePath)

            if QtCore.qVersion() > '4.3.3':
                QtCore.QCoreApplication.installTranslator(self.translator)

    def initGui(self):
        """Customize QGIS' GUI"""
        #. Add toolbar
        self.toolBar = self.iface.addToolBar("DigitizingTools")
        self.toolBar.setObjectName("DigitizingTools")

        #. Add a menu
        self.menu = QtGui.QMenu()
        self.menu.setTitle( QtGui.QApplication.translate( "DigitizingTools","&DigitizingTools" ) )
        self.digitizingtools_help = QtGui.QAction( QtGui.QApplication.translate("DigitizingTools", "Help" ), self.iface.mainWindow() )
        self.digitizingtools_about = QtGui.QAction( QtGui.QApplication.translate("DigitizingTools", "About" ), self.iface.mainWindow() )
        self.digitizingtools_settings = QtGui.QAction( QtGui.QApplication.translate("DigitizingTools", "Settings" ), self.iface.mainWindow() )

        self.menu.addActions( [self.digitizingtools_about] )

        menu_bar = self.iface.mainWindow().menuBar()
        actions = menu_bar.actions()
        lastAction = actions[len(actions) - 1]
        menu_bar.insertMenu(lastAction, self.menu)

        #. Add the tools
        self.multiPartSplitter = dtsplitmultipart.DtSplitMultiPartTool(self.iface, self.toolBar)
        self.cutter = dtcutter.DtCutWithPolygon(self.iface, self.toolBar)
        self.ringFiller = dtfillring.DtFillRing(self.iface, self.toolBar)
        self.gapFiller = dtfillgap.DtFillGap(self.iface, self.toolBar)
        self.splitter = dtsplitter.DtSplitWithLine(self.iface, self.toolBar)
        self.prolongLine = dtprolongline.DtProlongLine(self.iface, self.toolBar)
        self.moveNodeByArea = dtmovenodebyarea.DtMoveNodeByArea(self.iface, self.toolBar)
        self.moveSideByDistance = dtmovesidebydistance.DtMoveSideByDistance(self.iface, self.toolBar)
        self.moveSideByArea = dtmovesidebyarea.DtMoveSideByArea(self.iface, self.toolBar)

        self.digitizingtools_about.triggered.connect(self.doAbout)
        #QObject.connect( self.digitizingtools_help, SIGNAL("triggered()"), self.doHelp )
        #QObject.connect( self.digitizingtools_settings, SIGNAL("triggered()"), self.doSettings )


    def doAbout(self):
        d = DigitizingToolsAbout(self.iface)
        d.exec_()

    def doHelp(self):
        webbrowser.open(currentPath + "/help/build/html/intro.html")

    def doSettings(self):
        settings = CadToolsSettingsGui(self.iface.mainWindow())
        settings.show()

    def unload(self):
        # remove toolbar and menubar
        del self.toolBar
        del self.menu