From 0828083b6667a79464ea922506b0fe2839d12439 Mon Sep 17 00:00:00 2001
From: "benjamin.jakimow@geo.hu-berlin.de" <q8DTkxUg-BB>
Date: Fri, 30 Jun 2017 09:12:05 +0200
Subject: [PATCH] added utils.copyRenderer(renderer, targetLayer) to apply new
renderer
---
timeseriesviewer/mapcanvas.py | 24 ++++++++++--------------
timeseriesviewer/utils.py | 29 +++++++++++++++++++++++++++++
2 files changed, 39 insertions(+), 14 deletions(-)
diff --git a/timeseriesviewer/mapcanvas.py b/timeseriesviewer/mapcanvas.py
index ef48d691..e75e26fd 100644
--- a/timeseriesviewer/mapcanvas.py
+++ b/timeseriesviewer/mapcanvas.py
@@ -94,8 +94,9 @@ class MapCanvas(QgsMapCanvas):
QgsMapLayerRegistry.instance().addMapLayers(mls, False)
del self.mLazyRasterSources[:]
self.mLayers.extend(mls)
- self.setRasterRenderer(self.mRendererRaster, refresh=False)
- self.setVectorRenderer(self.mRendererVector, refresh=False)
+ self.setRenderer(self.mRendererVector, refresh=False)
+ self.setRenderer(self.mRendererRaster, refresh=False)
+
return self.mLayers
def addLazyRasterSources(self, sources):
@@ -368,18 +369,13 @@ class MapCanvas(QgsMapCanvas):
SETTINGS.setValue('CANVAS_SAVE_IMG_DIR', os.path.dirname(path))
- def setRenderer(self, renderer):
- #print('Set renderer {}'.format(self.objectName()))
- #lyrs = [l for l in self.mapLayersToRender() if str(l.source()) == targetLayerUri]
- isRasterRenderer = isinstance(renderer, QgsRasterRenderer)
- if isRasterRenderer:
- self.setRasterRenderer(renderer, refresh=False)
- else:
- self.setVectorRenderer(renderer, refresh=False)
-
- self.refresh()
+ def setRenderer(self, renderer, refresh=True):
+ from utils import copyRenderer
+ success = [copyRenderer(renderer, lyr) for lyr in self.mLayers]
+ if refresh and any(success):
+ self.refresh()
- def setVectorRenderer(self, renderer, refresh=True):
+ def depr_setVectorRenderer(self, renderer, refresh=True):
self.mRendererVector = renderer
lyrs = [l for l in self.mLayers if isinstance(l, QgsVectorLayer)]
for lyr in lyrs:
@@ -388,7 +384,7 @@ class MapCanvas(QgsMapCanvas):
if refresh:
self.refresh()
- def setRasterRenderer(self, renderer, refresh=False):
+ def depr_setRasterRenderer(self, renderer, refresh=False):
self.mRendererRaster = renderer
lyrs = [l for l in self.mLayers if isinstance(l, QgsRasterLayer)]
for lyr in lyrs:
diff --git a/timeseriesviewer/utils.py b/timeseriesviewer/utils.py
index 1c222552..57f2642f 100644
--- a/timeseriesviewer/utils.py
+++ b/timeseriesviewer/utils.py
@@ -298,6 +298,35 @@ def filterSubLayers(filePaths, subLayerEndings):
pass
return results
+def copyRenderer(renderer, targetLayer):
+ """
+ Copies and applies renderer to targetLayer.
+ :param renderer:
+ :param targetLayer:
+ :return: True, if 'renderer' could be copied and applied to 'targetLayer'
+ """
+ if isinstance(targetLayer, QgsRasterLayer):
+ if isinstance(renderer, QgsMultiBandColorRenderer):
+ r = renderer.clone()
+ r.setInput(targetLayer.dataProvider())
+ targetLayer.setRenderer(r)
+ return True
+ elif isinstance(renderer, QgsSingleBandPseudoColorRenderer):
+ r = renderer.clone()
+ # r = QgsSingleBandPseudoColorRenderer(None, renderer.band(), None)
+ r.setInput(targetLayer.dataProvider())
+ cmin = renderer.classificationMin()
+ cmax = renderer.classificationMax()
+ r.setClassificationMin(cmin)
+ r.setClassificationMax(cmax)
+ targetLayer.setRenderer(r)
+ return True
+ elif isinstance(targetLayer, QgsVectorLayer):
+ #todo: add render-specific switches
+ targetLayer.setRenderer(renderer)
+ return True
+ else:
+ return False
def getIface():
"""
--
GitLab