ASCEE/pyqtgraph
5
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

[SVGExporter] Fix background color

Browse Source
This commit is contained in:
Gabriele Buondonno 2020-10-16 14:57:48 +02:00
parent 5ed2e760ea
commit 972d985421
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
pyqtgraph/exporters/SVGExporter.py
View File

@ -18,7 +18,18 @@ class SVGExporter(Exporter):
def __init__(self, item): def __init__(self, item):
Exporter.__init__(self, item) Exporter.__init__(self, item)
tr = self.getTargetRect() tr = self.getTargetRect()
if isinstance(item, QtGui.QGraphicsItem):
scene = item.scene()
else:
scene = item
bgbrush = scene.views()[0].backgroundBrush()
bg = bgbrush.color()
if bgbrush.style() == QtCore.Qt.NoBrush:
bg.setAlpha(0)
self.params = Parameter(name='params', type='group', children=[ self.params = Parameter(name='params', type='group', children=[
{'name': 'background', 'type': 'color', 'value': bg},
{'name': 'width', 'type': 'float', 'value': tr.width(), 'limits': (0, None)}, {'name': 'width', 'type': 'float', 'value': tr.width(), 'limits': (0, None)},
{'name': 'height', 'type': 'float', 'value': tr.height(), 'limits': (0, None)}, {'name': 'height', 'type': 'float', 'value': tr.height(), 'limits': (0, None)},
#{'name': 'viewbox clipping', 'type': 'bool', 'value': True}, #{'name': 'viewbox clipping', 'type': 'bool', 'value': True},
@ -51,6 +62,7 @@ class SVGExporter(Exporter):
## Instead, we will use Qt to generate SVG for each item independently, ## Instead, we will use Qt to generate SVG for each item independently,
## then manually reconstruct the entire document. ## then manually reconstruct the entire document.
options = {ch.name():ch.value() for ch in self.params.children()} options = {ch.name():ch.value() for ch in self.params.children()}
options['background'] = self.params['background']
options['width'] = self.params['width'] options['width'] = self.params['width']
options['height'] = self.params['height'] options['height'] = self.params['height']
xml = generateSvg(self.item, options) xml = generateSvg(self.item, options)
@ -103,7 +115,9 @@ def generateSvg(item, options={}):
defsXml += d.toprettyxml(indent=' ') defsXml += d.toprettyxml(indent=' ')
defsXml += "</defs>\n" defsXml += "</defs>\n"
svgAttributes = f' viewBox ="0 0 {options["width"]} {options["height"]}"' svgAttributes = f' viewBox ="0 0 {options["width"]} {options["height"]}"'
return (xmlHeader % svgAttributes) + defsXml + node.toprettyxml(indent=' ') + "\n</svg>\n" c = options['background']
backgroundtag = f'<rect width="100%" height="100%" style="fill:rgba({c.red()}, {c.blue()}, {c.green()}, {c.alpha()/255.0})" />\n'
return (xmlHeader % svgAttributes) + backgroundtag + defsXml + node.toprettyxml(indent=' ') + "\n</svg>\n"
def _generateItemSvg(item, nodes=None, root=None, options={}): def _generateItemSvg(item, nodes=None, root=None, options={}):