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Solved problems with destruction of map tools - canvas mustn't be del…
…eted before map tool, however in Python the destruction had to be done explicitly to acheive right order. New solution is that QgsMapTool is derived from QObject and on construction, QgsMapCanvas is set as its parent. This way canvas is always deleted after deletion of map tools. Also, because of this, I've divided QgsMeasure to QgsMeasureTool and QgsMeasureDialog (problem with 2 parents with QObject as a base). git-svn-id: http://svn.osgeo.org/qgis/trunk@6908 c8812cc2-4d05-0410-92ff-de0c093fc19c
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Apr 23, 2007
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