本文整理汇总了Python中qgis.core.QgsProject.homePath方法的典型用法代码示例。如果您正苦于以下问题：Python QgsProject.homePath方法的具体用法？Python QgsProject.homePath怎么用？Python QgsProject.homePath使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类qgis.core.QgsProject的用法示例。
在下文中一共展示了QgsProject.homePath方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: testHomePath
# 需要导入模块: from qgis.core import QgsProject [as 别名]
# 或者: from qgis.core.QgsProject import homePath [as 别名]
def testHomePath(self):
p = QgsProject()
path_changed_spy = QSignalSpy(p.homePathChanged)
self.assertFalse(p.homePath())
self.assertFalse(p.presetHomePath())
# simulate save file
tmp_dir = QTemporaryDir()
tmp_file = "{}/project.qgs".format(tmp_dir.path())
with open(tmp_file, 'w') as f:
pass
p.setFileName(tmp_file)
# home path should be file path
self.assertEqual(p.homePath(), tmp_dir.path())
self.assertFalse(p.presetHomePath())
self.assertEqual(len(path_changed_spy), 1)
# manually override home path
p.setPresetHomePath('/tmp/my_path')
self.assertEqual(p.homePath(), '/tmp/my_path')
self.assertEqual(p.presetHomePath(), '/tmp/my_path')
self.assertEqual(len(path_changed_spy), 2)
# check project scope
scope = QgsExpressionContextUtils.projectScope(p)
self.assertEqual(scope.variable('project_home'), '/tmp/my_path')
# no extra signal if path is unchanged
p.setPresetHomePath('/tmp/my_path')
self.assertEqual(p.homePath(), '/tmp/my_path')
self.assertEqual(p.presetHomePath(), '/tmp/my_path')
self.assertEqual(len(path_changed_spy), 2)
# setting file name should not affect home path is manually set
tmp_file_2 = "{}/project/project2.qgs".format(tmp_dir.path())
os.mkdir(tmp_dir.path() + '/project')
with open(tmp_file_2, 'w') as f:
pass
p.setFileName(tmp_file_2)
self.assertEqual(p.homePath(), '/tmp/my_path')
self.assertEqual(p.presetHomePath(), '/tmp/my_path')
self.assertEqual(len(path_changed_spy), 2)
scope = QgsExpressionContextUtils.projectScope(p)
self.assertEqual(scope.variable('project_home'), '/tmp/my_path')
# clear manual path
p.setPresetHomePath('')
self.assertEqual(p.homePath(), tmp_dir.path() + '/project')
self.assertFalse(p.presetHomePath())
self.assertEqual(len(path_changed_spy), 3)
scope = QgsExpressionContextUtils.projectScope(p)
self.assertEqual(scope.variable('project_home'), tmp_dir.path() + '/project')
# relative path
p.setPresetHomePath('../home')
self.assertEqual(p.homePath(), tmp_dir.path() + '/home')
self.assertEqual(p.presetHomePath(), '../home')
self.assertEqual(len(path_changed_spy), 4)
scope = QgsExpressionContextUtils.projectScope(p)
self.assertEqual(scope.variable('project_home'), tmp_dir.path() + '/home')
# relative path, no filename
p.setFileName('')
self.assertEqual(p.homePath(), '../home')
self.assertEqual(p.presetHomePath(), '../home')
scope = QgsExpressionContextUtils.projectScope(p)
self.assertEqual(scope.variable('project_home'), '../home')