def fit_scene(self):
""" Fit scene into canvas. """
margin = 50.0
rawBoundary = visible_bounding_rect(self.scene().items())
rawBoundary.adjust(-margin, -margin, margin, margin)
self.fitInView(rawBoundary, Qt.KeepAspectRatio)
def fit_scene(self):
""" Fit scene into canvas. """
margin = 50.0
rawBoundary = visible_bounding_rect(self.scene().items())
rawBoundary.adjust(-margin, -margin, margin, margin)
self.fitInView(rawBoundary, Qt.KeepAspectRatio)
def printer(canvas, printer):
""" The main print routine. """
theScene = visible_bounding_rect(canvas.items())
theScene.adjust(-10, -10, 10, 10)
painter = QPainter(printer)
painter.setRenderHints(QPainter.SmoothPixmapTransform
| QPainter.HighQualityAntialiasing
| QPainter.TextAntialiasing)
canvas.render(painter, QRectF(), theScene)
painter.end()
def update_dimensions(self):
""" Update values with the current canvas dimensions """
size = visible_bounding_rect(self.canvas.items())
imageWidth = math.floor(size.width())
imageHeight = math.floor(size.height())
self.imageWidth = imageWidth
self.imageHeight = imageHeight
self._aspectRatio = imageWidth / imageHeight
self.imageWidthSpinner.setValue(int(self._convert_pixels_to_length(self.imageWidth)))
self.imageHeightSpinner.setValue(int(self._convert_pixels_to_length(self.imageHeight)))
def printer(canvas, printer):
""" The main print routine. """
theScene = visible_bounding_rect(canvas.items())
theScene.adjust(-10, -10, 10, 10)
painter = QPainter(printer)
painter.setRenderHints(QPainter.SmoothPixmapTransform
| QPainter.HighQualityAntialiasing
| QPainter.TextAntialiasing)
canvas.render(painter, QRectF(), theScene)
painter.end()
def update_dimensions(self):
""" Update values with the current canvas dimensions """
size = visible_bounding_rect(self.canvas.items())
imageWidth = math.floor(size.width())
imageHeight = math.floor(size.height())
self.imageWidth = imageWidth
self.imageHeight = imageHeight
self._aspectRatio = imageWidth / imageHeight
self.imageWidthSpinner.setValue(
int(self._convert_pixels_to_length(self.imageWidth)))
self.imageHeightSpinner.setValue(
int(self._convert_pixels_to_length(self.imageHeight)))
def export_scene(canvas, width, height, dpi, exportFileName):
""" This function exports the scene to a file. """
# need this to make sure we take away focus from
# any currently selected legend items
canvas.clearFocus()
with HiddenStitchManager(canvas):
# NOTE: We seem to need the 1px buffer region to avoid
# the image being cut off
margin = 10
theScene = visible_bounding_rect(canvas.items())
theScene.adjust(-margin, -margin, margin, margin)
# check if user requested an svg file
svg = True if QFileInfo(exportFileName).completeSuffix() == "svg" \
else False
if svg:
generator = QSvgGenerator()
generator.setFileName(exportFileName)
generator.setSize(QSize(width, height))
generator.setViewBox(QRect(0, 0, width, height))
generator.setTitle("sconcho generated SVG image")
generator.setDescription("this svg image was exported from "
"a sconcho project")
generator.setResolution(dpi)
else:
generator = QImage(width+2*margin, height+2*margin,
QImage.Format_ARGB32_Premultiplied)
generator.fill(1)
inchesToMeter = 39.3700787
generator.setDotsPerMeterX(dpi*inchesToMeter)
generator.setDotsPerMeterY(dpi*inchesToMeter)
painter = QPainter(generator)
painter.setRenderHints(QPainter.SmoothPixmapTransform
| QPainter.HighQualityAntialiasing
| QPainter.TextAntialiasing )
painter.setBackgroundMode(Qt.TransparentMode )
canvas.render(painter, QRectF(), theScene )
painter.end()
if not svg:
generator.save(exportFileName)
def export_scene(canvas, width, height, dpi, exportFileName):
""" This function exports the scene to a file. """
# need this to make sure we take away focus from
# any currently selected legend items
canvas.clearFocus()
with HiddenStitchManager(canvas):
# NOTE: We seem to need the 1px buffer region to avoid
# the image being cut off
margin = 10
theScene = visible_bounding_rect(canvas.items())
theScene.adjust(-margin, -margin, margin, margin)
# check if user requested an svg file
svg = True if QFileInfo(exportFileName).completeSuffix() == "svg" \
else False
if svg:
generator = QSvgGenerator()
generator.setFileName(exportFileName)
generator.setSize(QSize(width, height))
generator.setViewBox(QRect(0, 0, width, height))
generator.setTitle("sconcho generated SVG image")
generator.setDescription("this svg image was exported from "
"a sconcho project")
generator.setResolution(dpi)
else:
generator = QImage(width + 2 * margin, height + 2 * margin,
QImage.Format_ARGB32_Premultiplied)
generator.fill(1)
inchesToMeter = 39.3700787
generator.setDotsPerMeterX(dpi * inchesToMeter)
generator.setDotsPerMeterY(dpi * inchesToMeter)
painter = QPainter(generator)
painter.setRenderHints(QPainter.SmoothPixmapTransform
| QPainter.HighQualityAntialiasing
| QPainter.TextAntialiasing)
painter.setBackgroundMode(Qt.TransparentMode)
canvas.render(painter, QRectF(), theScene)
painter.end()
if not svg:
generator.save(exportFileName)
