本文整理汇总了Python中qgis.gui.QgsAttributeTableModel.columnCount方法的典型用法代码示例。如果您正苦于以下问题：Python QgsAttributeTableModel.columnCount方法的具体用法？Python QgsAttributeTableModel.columnCount怎么用？Python QgsAttributeTableModel.columnCount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.gui.QgsAttributeTableModel的用法示例。
在下文中一共展示了QgsAttributeTableModel.columnCount方法的3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: TestQgsAttributeTableModel
# 需要导入模块: from qgis.gui import QgsAttributeTableModel [as 别名]
# 或者: from qgis.gui.QgsAttributeTableModel import columnCount [as 别名]
class TestQgsAttributeTableModel(unittest.TestCase):
@classmethod
def setUpClass(cls):
QgsEditorWidgetRegistry.initEditors()
def setUp(self):
self.layer = self.createLayer()
self.cache = QgsVectorLayerCache(self.layer, 100)
self.am = QgsAttributeTableModel(self.cache)
self.am.loadLayer()
self.am.loadAttributes()
def tearDown(self):
del self.am
del self.cache
del self.layer
def createLayer(self):
layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer",
"addfeat", "memory")
pr = layer.dataProvider()
features = list()
for i in range(10):
f = QgsFeature()
f.setAttributes(["test", i])
f.setGeometry(QgsGeometry.fromPoint(QgsPoint(100 * i, 2 ^ i)))
features.append(f)
self.assertTrue(pr.addFeatures(features))
return layer
def testLoad(self):
self.assertEqual(self.am.rowCount(), 10)
self.assertEqual(self.am.columnCount(), 2)
def testRemove(self):
self.layer.startEditing()
self.layer.deleteFeature(5)
self.assertEqual(self.am.rowCount(), 9)
self.layer.selectByIds([1, 3, 6, 7])
self.layer.deleteSelectedFeatures()
self.assertEqual(self.am.rowCount(), 5)
def testAdd(self):
self.layer.startEditing()
f = QgsFeature()
f.setAttributes(["test", 8])
f.setGeometry(QgsGeometry.fromPoint(QgsPoint(100, 200)))
self.layer.addFeature(f)
self.assertEqual(self.am.rowCount(), 11)
def testRemoveColumns(self):
self.assertTrue(self.layer.startEditing())
self.assertTrue(self.layer.deleteAttribute(1))
self.assertEqual(self.am.columnCount(), 1)示例2: TestQgsAttributeTableModel
# 需要导入模块: from qgis.gui import QgsAttributeTableModel [as 别名]
# 或者: from qgis.gui.QgsAttributeTableModel import columnCount [as 别名]
class TestQgsAttributeTableModel(unittest.TestCase):
@classmethod
def setUpClass(cls):
QgsGui.editorWidgetRegistry().initEditors()
def setUp(self):
self.layer = self.createLayer()
self.cache = QgsVectorLayerCache(self.layer, 100)
self.am = QgsAttributeTableModel(self.cache)
self.am.loadLayer()
def tearDown(self):
del self.am
del self.cache
del self.layer
def createLayer(self):
layer = QgsVectorLayer("Point?field=fldtxt:string&field=fldint:integer",
"addfeat", "memory")
pr = layer.dataProvider()
features = list()
for i in range(10):
f = QgsFeature()
f.setAttributes(["test", i])
f.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100 * i, 2 ^ i)))
features.append(f)
self.assertTrue(pr.addFeatures(features))
return layer
def testLoad(self):
self.assertEqual(self.am.rowCount(), 10)
self.assertEqual(self.am.columnCount(), 2)
def testRemove(self):
self.layer.startEditing()
self.layer.deleteFeature(5)
self.assertEqual(self.am.rowCount(), 9)
self.layer.selectByIds([1, 3, 6, 7])
self.layer.deleteSelectedFeatures()
self.assertEqual(self.am.rowCount(), 5)
def testAdd(self):
self.layer.startEditing()
f = QgsFeature()
f.setAttributes(["test", 8])
f.setGeometry(QgsGeometry.fromPointXY(QgsPointXY(100, 200)))
self.layer.addFeature(f)
self.assertEqual(self.am.rowCount(), 11)
def testRemoveColumns(self):
self.assertTrue(self.layer.startEditing())
self.assertTrue(self.layer.deleteAttribute(1))
self.assertEqual(self.am.columnCount(), 1)
def testEdit(self):
fid = 2
field_idx = 1
new_value = 333
# get the same feature from model and layer
feature = self.layer.getFeature(fid)
model_index = self.am.idToIndex(fid)
feature_model = self.am.feature(model_index)
# check that feature from layer and model are sync
self.assertEqual(feature.attribute(field_idx), feature_model.attribute(field_idx))
# change attribute value for a feature and commit
self.layer.startEditing()
self.layer.changeAttributeValue(fid, field_idx, new_value)
self.layer.commitChanges()
# check the feature in layer is good
feature = self.layer.getFeature(fid)
self.assertEqual(feature.attribute(field_idx), new_value)
# get the same feature from model and layer
model_index = self.am.idToIndex(fid)
feature_model = self.am.feature(model_index)
# check that index from layer and model are sync
self.assertEqual(feature.attribute(field_idx), feature_model.attribute(field_idx))示例3: __init__
# 需要导入模块: from qgis.gui import QgsAttributeTableModel [as 别名]
# 或者: from qgis.gui.QgsAttributeTableModel import columnCount [as 别名]
#.........这里部分代码省略.........
if add_to_toolbar:
self.toolbar.addAction(action)
if add_to_menu:
self.iface.addPluginToMenu(
self.menu,
action)
self.actions.append(action)
return action
def initGui(self):
"""Create the menu entries and toolbar icons inside the QGIS GUI."""
icon_path = ':/plugins/UploadImages/upload.png'
self.add_action(
icon_path,
text=self.tr(u'Upload Images'),
callback=self.run,
parent=self.iface.mainWindow())
icon_path = ':/plugins/UploadImages/upload.png'
self.add_action(
icon_path,
text=self.tr(u'Upload Images11111'),
callback=self.run,
parent=self.iface.mainWindow())
def unload(self):
"""Removes the plugin menu item and icon from QGIS GUI."""
for action in self.actions:
self.iface.removePluginMenu(
self.tr(u'&Upload Images'),
action)
self.iface.removeToolBarIcon(action)
# remove the toolbar
del self.toolbar
def populateTable(self):
actlayer = qgis.utils.iface.activeLayer()
self.features = actlayer.selectedFeatures()
fidlist = []
if len(self.features) > 0:
for f in self.features:
fidlist.append(f[self.keycolumn])
selection=[]
strsel=self.keycolumn + " IN ("
for fid in fidlist:
selection.append(fid)
strsel=strsel+ "'" + str(fid) + "',"
strsel=strsel[:-1] + ")"
actlayer.setSubsetString(strsel)
cache = QgsVectorLayerCache(actlayer, 50000)
self.modelt = QgsAttributeTableModel(cache)
self.modelt.loadLayer()
table = self.dlg.tableView
table.setModel(self.modelt)
self.dlg.show()
self.dlg.exec_()
else:
self.iface.messageBar().pushMessage("Error", QCoreApplication.translate("sipamsar","At least one feature need to be selected."), level=QgsMessageBar.WARNING)
QgsMessageLog.logMessage("At least one feature need to be selected.", level=QgsMessageLog.WARNING)
def populateFields(self):
actlayer = qgis.utils.iface.activeLayer()
cache = QgsVectorLayerCache(actlayer, 50000)
self.modelc = QgsAttributeTableModel(cache)
self.modelc.loadLayer()
index = self.modelc.index(0,0)
campos = []
for i in range(0,self.modelc.columnCount(index)):
campos.append(self.modelc.headerData(i, Qt.Horizontal, Qt.DisplayRole))
self.dlg.comboBoxCampos.addItems(campos)
def run(self):
"""Run method that performs all the real work"""
#self.dlg.comboBox.clear()
actlayer = qgis.utils.iface.activeLayer()
if actlayer is None:
self.iface.messageBar().pushMessage("Error", QCoreApplication.translate("sipamsar","No loaded layer available. Please, choose one layer and select the features to download/upload."), level=QgsMessageBar.WARNING)
QgsMessageLog.logMessage("No loaded layer available. Please, choose one layer and select the features to download/upload.", level=QgsMessageLog.WARNING)
return
dsu = QgsDataSourceURI( actlayer.dataProvider().dataSourceUri() )
self.keycolumn = dsu.keyColumn()
self.populateFields()
self.populateTable()