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fixed #3449 making sure the clipping result has the layers order as in TOC

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git-svn-id: http://svn.osgeo.org/qgis/trunk@15125 c8812cc2-4d05-0410-92ff-de0c093fc19c
This commit is contained in:
brushtyler 2011-02-03 23:18:42 +00:00
parent 136077c88f
commit 6129ea5086
1 changed files with 16 additions and 2 deletions
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18
python/plugins/GdalTools/tools/doClipper.py
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@ -53,8 +53,10 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
def fillInputFiles(self):
self.inputFiles = QStringList()
# for each active layer
for i in range(self.canvas.layerCount()):
# Reversed list to have the topmost layer as the last one in the list
# because "In areas of overlap, the last image will be copied over
# earlier ones" (see http://www.gdal.org/gdal_merge.html).
for i in range(self.canvas.layerCount()-1, -1, -1):
layer = self.canvas.layer(i)
# only raster layers, but not WMS ones
if layer.type() == layer.RasterLayer and ( not layer.usesProvider() ):
@ -70,6 +72,9 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
if self.isVisible() and self.warningDialog.isHidden():
msg = QString( self.tr("No active raster layers. You must add almost one raster layer to continue.") )
self.warningDialog.showMessage(msg)
# refresh command when there are no active layers
self.someValueChanged()
else:
self.warningDialog.hide()
self.extentSelector.start()
@ -114,6 +119,15 @@ class GdalToolsDialog(QWidget, Ui_Widget, BasePluginWidget):
if not self.outputFileEdit.text().isEmpty():
arguments << "-o"
arguments << self.outputFileEdit.text()
if self.pctCheck.isChecked() and len(self.inputFiles) > 1:
# The topmost layer in the TOC is the last one in the list (see above),
# but I want to grab the pseudocolor table from the first image (the
# topmost layer in the TOC).
# Workaround: duplicate the last layer inserting it also as the first
# one to grab the pseudocolor table from it.
arguments << self.inputFiles[ len(self.inputFiles)-1 ]
arguments << self.inputFiles
return arguments