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42 lines
2.0 KiB
Python
42 lines
2.0 KiB
Python
import os
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from PyQt4 import QtGui, QtCore
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from PyQt4.QtCore import *
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from PyQt4.QtGui import *
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from sextante.gui.ToolboxAction import ToolboxAction
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from sextante.core.QGisLayers import QGisLayers
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from sextante.gui.RectangleMapTool import RectangleMapTool
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from sextante.core.SextanteConfig import SextanteConfig
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from sextante.grass.GrassUtils import GrassUtils
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class DefineGrassRegionAction(ToolboxAction):
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def __init__(self):
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self.name="Define GRASS region on canvas"
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self.group="Tools"
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canvas = QGisLayers.iface.mapCanvas()
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self.prevMapTool = canvas.mapTool()
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self.tool = RectangleMapTool(canvas)
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QtCore.QObject.connect(self.tool, SIGNAL("rectangleCreated()"), self.fillCoords)
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def getIcon(self):
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return QtGui.QIcon(os.path.dirname(__file__) + "/../images/grass.png")
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def execute(self):
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QtGui.QMessageBox.information(None, "GRASS Region", "Click and drag onto map canvas to define GRASS region")
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canvas = QGisLayers.iface.mapCanvas()
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canvas.setMapTool(self.tool)
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def fillCoords(self):
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r = self.tool.rectangle()
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_XMIN, r.xMinimum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_YMIN, r.yMinimum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_XMAX, r.xMaximum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_YMAX, r.yMaximum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_AUTO_REGION, False)
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s = str(r.xMinimum()) + "," + str(r.xMaximum()) + "," + str(r.yMinimum()) + "," + str(r.yMaximum())
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self.tool.reset()
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canvas = QGisLayers.iface.mapCanvas()
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canvas.setMapTool(self.prevMapTool)
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QtGui.QMessageBox.information(None, "GRASS Region", "GRASS region set to:\n" + s + \
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"\nTo set the cellsize or set back the autoregion option,\ngo to the SEXTANTE configuration.")
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