Revision 6a557d2bd737748d622d1ae12c6537f5a2139543 authored by Minoru Akagi on 30 June 2016, 00:50:24 UTC, committed by Minoru Akagi on 30 June 2016, 00:50:24 UTC
1 parent 2c38ad6
layerselectdialog.py
# -*- coding: utf-8 -*-
"""
/***************************************************************************
LayerSelectDialog
-------------------
begin : 2015-04-22
copyright : (C) 2015 Minoru Akagi
email : akaginch@gmail.com
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
"""
from PyQt4.QtCore import Qt
from PyQt4.QtGui import QDialog
from qgis.core import QGis, QgsProject
from qgis.gui import QgsMapCanvasLayer
if QGis.QGIS_VERSION_INT >= 20600:
from qgis.core import QgsLayerTreeModel
else: # 2.4
from qgis.gui import QgsLayerTreeModel
from ui.layerselectdialog import Ui_LayerSelectDialog
class LayerSelectDialog(QDialog):
def __init__(self, parent):
QDialog.__init__(self, parent)
self.mapSettings = None
self.canvasReady = False # whether map settings have been applied to map canvas
# Set up the user interface from Designer.
self.ui = ui = Ui_LayerSelectDialog()
ui.setupUi(self)
ui.tabWidget.setTabEnabled(1, False)
ui.tabWidget.currentChanged.connect(self.tabPageChanged)
def initTree(self, ids=None):
ids = ids or []
self.root = QgsProject.instance().layerTreeRoot().clone()
for layer in self.root.findLayers():
layer.setVisible(Qt.Checked if layer.layerId() in ids else Qt.Unchecked)
self.model = QgsLayerTreeModel(self.root)
self.model.setFlags(QgsLayerTreeModel.AllowNodeChangeVisibility)
self.ui.treeView.setModel(self.model)
def setMapSettings(self, mapSettings):
self.mapSettings = mapSettings
self.canvasReady = False
self.ui.tabWidget.setTabEnabled(1, bool(mapSettings))
def visibleLayers(self):
layers = []
for layer in self.root.findLayers():
if layer.isVisible():
layers.append(layer.layer())
return layers
def tabPageChanged(self, index):
if index == 1:
self.updatePreview()
def updatePreview(self):
if self.mapSettings is None:
return
if not self.canvasReady:
c = self.ui.canvas
s = self.mapSettings
c.setCanvasColor(s.backgroundColor())
c.setCrsTransformEnabled(s.hasCrsTransformEnabled())
c.setDestinationCrs(s.destinationCrs())
if QGis.QGIS_VERSION_INT >= 20700:
c.setRotation(s.rotation())
c.setExtent(s.extent())
self.canvasReady = True
self.ui.canvas.setLayerSet([QgsMapCanvasLayer(layer) for layer in self.visibleLayers()])
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