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Implemented delete functionality in nb browser....
Implemented delete functionality in nb browser. * Dialog confirms the notebook delete. * Notebook element is removed from list upon deletion.

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svg.py
89 lines | 2.3 KiB | text/x-python | PythonLexer
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 """ Defines utility functions for working with SVG documents in Qt.
"""
# System library imports.
Evan Patterson
Paved the way for PySide support....
r3304 from IPython.external.qt import QtCore, QtGui, QtSvg
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765
def save_svg(string, parent=None):
""" Prompts the user to save an SVG document to disk.
Parameters:
-----------
epatters
PySide fix: PySide's QByteArray constructor does not overload for unicode.
r3335 string : basestring
Evan Patterson
Paved the way for PySide support....
r3304 A Python string containing a SVG document.
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765
parent : QWidget, optional
The parent to use for the file dialog.
Returns:
--------
The name of the file to which the document was saved, or None if the save
was cancelled.
"""
Martin Spacek
check for unicode before encoding as UTF-8
r3920 if isinstance(string, unicode):
string = string.encode('utf-8')
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 dialog = QtGui.QFileDialog(parent, 'Save SVG Document')
dialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
dialog.setDefaultSuffix('svg')
dialog.setNameFilter('SVG document (*.svg)')
if dialog.exec_():
filename = dialog.selectedFiles()[0]
f = open(filename, 'w')
try:
Martin Spacek
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r3920 f.write(string)
epatters
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r2765 finally:
f.close()
return filename
return None
def svg_to_clipboard(string):
""" Copy a SVG document to the clipboard.
Parameters:
-----------
epatters
PySide fix: PySide's QByteArray constructor does not overload for unicode.
r3335 string : basestring
Evan Patterson
Paved the way for PySide support....
r3304 A Python string containing a SVG document.
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 """
epatters
PySide fix: PySide's QByteArray constructor does not overload for unicode.
r3335 if isinstance(string, unicode):
string = string.encode('utf-8')
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 mime_data = QtCore.QMimeData()
Evan Patterson
Paved the way for PySide support....
r3304 mime_data.setData('image/svg+xml', string)
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 QtGui.QApplication.clipboard().setMimeData(mime_data)
def svg_to_image(string, size=None):
""" Convert a SVG document to a QImage.
Parameters:
-----------
epatters
PySide fix: PySide's QByteArray constructor does not overload for unicode.
r3335 string : basestring
Evan Patterson
Paved the way for PySide support....
r3304 A Python string containing a SVG document.
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765
size : QSize, optional
The size of the image that is produced. If not specified, the SVG
document's default size is used.
Raises:
-------
ValueError
If an invalid SVG string is provided.
Returns:
--------
A QImage of format QImage.Format_ARGB32.
"""
epatters
PySide fix: PySide's QByteArray constructor does not overload for unicode.
r3335 if isinstance(string, unicode):
string = string.encode('utf-8')
Evan Patterson
Paved the way for PySide support....
r3304 renderer = QtSvg.QSvgRenderer(QtCore.QByteArray(string))
epatters
* Added a custom context menu to the RichIPythonWidget which allows saving plot as an images or SVG documents....
r2765 if not renderer.isValid():
raise ValueError('Invalid SVG data.')
if size is None:
size = renderer.defaultSize()
image = QtGui.QImage(size, QtGui.QImage.Format_ARGB32)
painter = QtGui.QPainter(image)
renderer.render(painter)
return image