rasterbender.py

# -*- coding: utf-8 -*-
"""
/***************************************************************************
 RasterBender
                                 A QGIS plugin
 Deforms vector to adapt them despite heavy and irregular deformations
                              -------------------
        begin                : 2014-05-21
        copyright            : (C) 2014 by Olivier Dalang
        email                : olivier.dalang@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 the PyQt and QGIS libraries
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from qgis.core import *
from qgis.gui import *

# Basic dependencies
import os.path, shutil
import sys
import math
import numpy

# Other classes
from rasterbenderdialog import RasterBenderDialog
from rasterbenderhelp import RasterBenderHelp

class RasterBender:

    def __init__(self, iface):
        self.iface = iface
        self.dlg = RasterBenderDialog(iface,self)

        self._abort = False

        self.ptsA = []
        self.ptsB = []

        self.transformer = None

        self.aboutWindow = None


    def initGui(self):
        
        self.action = QAction( QIcon(os.path.join(os.path.dirname(__file__),'resources','icon.png')), "Raster Bender", self.iface.mainWindow())
        self.action.triggered.connect(self.showUi)
        self.iface.addToolBarIcon(self.action)
        self.iface.addPluginToMenu(u"&Raster Bender", self.action)

        self.helpAction = QAction( QIcon(os.path.join(os.path.dirname(__file__),'resources','about.png')), "Raster Bender Help", self.iface.mainWindow())
        self.helpAction.triggered.connect(self.showHelp)
        self.iface.addPluginToMenu(u"&Raster Bender", self.helpAction)

    def showHelp(self):
        if self.aboutWindow is None:
            self.aboutWindow = RasterBenderHelp()
        self.aboutWindow.show()
        self.aboutWindow.raise_() 

    def unload(self):
        if self.dlg is not None:
            self.dlg.close()
            self.dlg = None

        if self.aboutWindow is not None:
            self.aboutWindow.close()
            self.aboutWindow = None

        self.iface.removePluginMenu(u"&Raster Bender", self.action)
        self.iface.removePluginMenu(u"&Raster Bender", self.helpAction)
        self.iface.removeToolBarIcon(self.action)

    def showUi(self):
        self.dlg.show()
        self.dlg.raise_()
        self.dlg.refreshStates()