2012-09-15 18:25:25 +03:00
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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.core.SextanteConfig import SextanteConfig
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from sextante.grass.GrassUtils import GrassUtils
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class DefineGrassRegionFromLayerAction(ToolboxAction):
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def __init__(self):
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self.name="Define GRASS region from layer"
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self.group="Tools"
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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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layers = QGisLayers.getAllLayers();
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layersMap = dict([(layer.name(), layer) for layer in layers])
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layerNames = [layer.name() for layer in layers]
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item, ok = QtGui.QInputDialog.getItem(None, "Select a layer", "Layer selection", layerNames, editable=False)
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if ok:
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layer = layersMap[item]
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_XMIN, layer.extent().xMinimum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_YMIN, layer.extent().yMinimum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_XMAX, layer.extent().xMaximum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_REGION_YMAX, layer.extent().yMaximum())
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SextanteConfig.setSettingValue(GrassUtils.GRASS_AUTO_REGION, False)
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s = str(layer.extent().xMinimum()) + "," + str(layer.extent().xMaximum()) + "," + str(layer.extent().yMinimum()) + "," + str(layer.extent().yMaximum())
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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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