def slotExportBackgroundChanged(self):
"""Button clicked to change background."""
color = qt4.QColorDialog.getColor(
utils.extendedColorToQColor(self.exportBackgroundButton.iconcolor),
self, "Choose color", qt4.QColorDialog.ShowAlphaChannel)
if color.isValid():
self.updateExportBackground(utils.extendedColorFromQColor(color))
def updateExportBackground(self, colorname):
"""Update color on export background."""
pixmap = qt4.QPixmap(16, 16)
col = utils.extendedColorToQColor(colorname)
pixmap.fill(col)
# update button (storing color in button itself - what fun!)
self.exportBackgroundButton.setIcon(qt4.QIcon(pixmap))
self.exportBackgroundButton.iconcolor = colorname
def updateExportBackground(self, colorname):
"""Update color on export background."""
pixmap = qt4.QPixmap(16, 16)
col = utils.extendedColorToQColor(colorname)
pixmap.fill(col)
# update button (storing color in button itself - what fun!)
self.exportBackgroundButton.setIcon(qt4.QIcon(pixmap))
self.exportBackgroundButton.iconcolor = colorname
def slotExportBackgroundChanged(self):
"""Button clicked to change background."""
color = qt4.QColorDialog.getColor(
utils.extendedColorToQColor(self.exportBackgroundButton.iconcolor),
self,
"Choose color",
qt4.QColorDialog.ShowAlphaChannel )
if color.isValid():
self.updateExportBackground( utils.extendedColorFromQColor(color) )
def exportBitmap(self, format):
"""Export to a bitmap format."""
# get size for bitmap's dpi
dpi = self.bitmapdpi
size = self.doc.pageSize(self.pagenumber, dpi=(dpi,dpi))
# create real output image
backqcolor = utils.extendedColorToQColor(self.backcolor)
if format == '.png':
# transparent output
image = qt4.QImage(size[0], size[1],
qt4.QImage.Format_ARGB32_Premultiplied)
else:
# non transparent output
image = qt4.QImage(size[0], size[1],
qt4.QImage.Format_RGB32)
backqcolor.setAlpha(255)
image.setDotsPerMeterX(dpi*m_inch)
image.setDotsPerMeterY(dpi*m_inch)
if backqcolor.alpha() == 0:
image.fill(qt4.qRgba(0,0,0,0))
else:
image.fill(backqcolor.rgb())
# paint to the image
painter = painthelper.DirectPainter(image)
painter.setRenderHint(qt4.QPainter.Antialiasing, self.antialias)
painter.setRenderHint(qt4.QPainter.TextAntialiasing, self.antialias)
self.renderPage(size, (dpi,dpi), painter)
# write image to disk
writer = qt4.QImageWriter()
# format below takes extension without dot
writer.setFormat(qt4.QByteArray(format[1:]))
writer.setFileName(self.filename)
if format == 'png':
# min quality for png as it makes no difference to output
# and makes file size smaller
writer.setQuality(0)
else:
writer.setQuality(self.quality)
writer.write(image)
def exportBitmap(self, format):
"""Export to a bitmap format."""
# get size for bitmap's dpi
dpi = self.bitmapdpi
size = self.doc.pageSize(self.pagenumber, dpi=(dpi, dpi))
# create real output image
backqcolor = utils.extendedColorToQColor(self.backcolor)
if format == '.png':
# transparent output
image = qt4.QImage(size[0], size[1],
qt4.QImage.Format_ARGB32_Premultiplied)
else:
# non transparent output
image = qt4.QImage(size[0], size[1], qt4.QImage.Format_RGB32)
backqcolor.setAlpha(255)
image.setDotsPerMeterX(dpi * m_inch)
image.setDotsPerMeterY(dpi * m_inch)
if backqcolor.alpha() == 0:
image.fill(qt4.qRgba(0, 0, 0, 0))
else:
image.fill(backqcolor.rgb())
# paint to the image
painter = qt4.QPainter(image)
painter.setRenderHint(qt4.QPainter.Antialiasing, self.antialias)
painter.setRenderHint(qt4.QPainter.TextAntialiasing, self.antialias)
self.renderPage(size, (dpi, dpi), painter)
# write image to disk
writer = qt4.QImageWriter()
# format below takes extension without dot
writer.setFormat(qt4.QByteArray(format[1:]))
writer.setFileName(self.filename)
if format == 'png':
# min quality for png as it makes no difference to output
# and makes file size smaller
writer.setQuality(0)
else:
writer.setQuality(self.quality)
writer.write(image)