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# qtlib.py - Qt utility code
#
# Copyright 2010 Steve Borho <steve@borho.org>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import os
import atexit
import shutil
import tempfile
from PyQt4 import QtCore, QtGui
from PyQt4 import Qsci
from mercurial import extensions, util
from tortoisehg.util import hglib
from tortoisehg.hgqt.i18n import _
from hgext.color import _styles
qsci = Qsci.QsciScintilla
tmproot = None
def gettempdir():
global tmproot
def cleanup():
try: shutil.rmtree(tmproot)
except: pass
if not tmproot:
tmproot = tempfile.mkdtemp(prefix='thg.')
atexit.register(cleanup)
return tmproot
# _styles maps from ui labels to effects
# _effects maps an effect to font style properties. We define a limited
# set of _effects, since we convert color effect names to font style
# effect programatically.
_effects = {
'bold': 'font-weight: bold',
'italic': 'font-style: italic',
'underline': 'text-decoration: underline',
}
thgstylesheet = '* { white-space: pre; font-family: monospace; font-size: 9pt; }'
def configstyles(ui):
# extensions may provide more labels and default effects
for name, ext in extensions.extensions():
_styles.update(getattr(ext, 'colortable', {}))
# tortoisehg defines a few labels and default effects
_styles.update({'ui.error':'red bold', 'control':'black bold'})
# allow the user to override
for status, cfgeffects in ui.configitems('color'):
if '.' not in status:
continue
cfgeffects = ui.configlist('color', status)
_styles[status] = ' '.join(cfgeffects)
for status, cfgeffects in ui.configitems('thg-color'):
if '.' not in status:
continue
cfgeffects = ui.configlist('thg-color', status)
_styles[status] = ' '.join(cfgeffects)
# See http://doc.trolltech.com/4.2/richtext-html-subset.html
# and http://www.w3.org/TR/SVG/types.html#ColorKeywords
def geteffect(labels):
'map labels like "log.date" to Qt font styles'
effects = []
# Multiple labels may be requested
for l in labels.split():
if not l:
continue
# Each label may request multiple effects
es = _styles.get(l, '')
for e in es.split():
if e in _effects:
effects.append(_effects[e])
elif e in QtGui.QColor.colorNames():
# Accept any valid QColor
effects.append('color: ' + e)
elif e.endswith('_background'):
e = e[:-11]
if e in QtGui.QColor.colorNames():
effects.append('bgcolor: ' + e)
return ';'.join(effects)
# Copy of patch.difflabel from Mercurial, hacked to always return
# a label for unmatched text, so it gets escaped by our htmlui
def difflabel(func, *args, **kw):
'''yields 2-tuples of (output, label) based on the output of func()'''
prefixes = [('diff', 'diff.diffline'),
('copy', 'diff.extended'),
('rename', 'diff.extended'),
('old', 'diff.extended'),
('new', 'diff.extended'),
('deleted', 'diff.extended'),
('---', 'diff.file_a'),
('+++', 'diff.file_b'),
('@@', 'diff.hunk'),
('-', 'diff.deleted'),
('+', 'diff.inserted')]
for chunk in func(*args, **kw):
lines = chunk.split('\n')
for i, line in enumerate(lines):
if i != 0:
yield ('\n', '')
stripline = line
if line and line[0] in '+-':
# highlight trailing whitespace, but only in changed lines
stripline = line.rstrip()
for prefix, label in prefixes:
if stripline.startswith(prefix):
yield (stripline, label)
break
else:
yield (line, 'ui.status')
if line != stripline:
yield (line[len(stripline):], 'diff.trailingwhitespace')
NAME_MAP = {
'fg': 'color', 'bg': 'background-color', 'family': 'font-family',
'size': 'font-size', 'weight': 'font-weight', 'space': 'white-space',
'style': 'font-style', 'decoration': 'text-decoration',
}
def markup(msg, **styles):
style = {'white-space': 'pre'}
for name, value in styles.items():
if not value:
continue
if NAME_MAP.has_key(name):
name = NAME_MAP[name]
style[name] = value
style = ';'.join(['%s: %s' % t for t in style.items()])
msg = hglib.tounicode(msg)
msg = QtCore.Qt.escape(msg)
msg = msg.replace('\n', '<br />')
return '<span style="%s">%s</span>' % (style, msg)
_iconcache = {}
def geticon(name):
"""
Return a QIcon for the resource named 'name.(svg|png)' (the given
'name' parameter must *not* provide the extension).
"""
try:
return _iconcache[name]
except KeyError:
for ext in ('svg', 'png', 'ico'):
path = ':/icons/%s.%s' % (name, ext)
if QtCore.QFile.exists(path):
icon = QtGui.QIcon(path)
break
else:
icon = QtGui.QIcon(':/icons/fallback.svg')
_iconcache[name] = icon
return icon
def CommonMsgBox(icon, title, main, text='', buttons=QtGui.QMessageBox.Close,
parent=None):
msg = QtGui.QMessageBox(parent)
msg.setIcon(icon)
msg.setWindowTitle(title)
msg.setStandardButtons(buttons)
msg.setText('<b>%s</b>' % main)
info = ''
for line in text.split('\n'):
info += '<nobr>%s</nobr><br />' % line
msg.setInformativeText(info)
return msg.exec_()
def InfoMsgBox(*args, **kargs):
return CommonMsgBox(QtGui.QMessageBox.Information, *args, **kargs)
def WarningMsgBox(*args, **kargs):
return CommonMsgBox(QtGui.QMessageBox.Warning, *args, **kargs)
def ErrorMsgBox(*args, **kargs):
return CommonMsgBox(QtGui.QMessageBox.Critical, *args, **kargs)
def QuestionMsgBox(*args, **kargs):
return CommonMsgBox(QtGui.QMessageBox.Question, *args, **kargs)
class CustomPrompt(QtGui.QMessageBox):
def __init__(self, title, message, parent, choices, default=None,
esc=None, files=None):
QtGui.QMessageBox.__init__(self, parent)
self.setWindowTitle(hglib.toutf(title))
self.setText(hglib.toutf(message))
if files:
msg = ''
for i, file in enumerate(files):
msg += ' %s\n' % file
if i == 9:
msg += ' ...\n'
break
self.setDetailedText(hglib.toutf(msg))
self.hotkeys = {}
for i, s in enumerate(choices):
btn = self.addButton(s, QtGui.QMessageBox.AcceptRole)
try:
char = s[s.index('&')+1].lower()
self.hotkeys[char] = btn
if default == i:
self.setDefaultButton(btn)
if esc == i:
self.setEscapeButton(btn)
except ValueError:
pass
def run(self):
return self.exec_()
def keyPressEvent(self, event):
for k, btn in self.hotkeys.iteritems():
if event.text() == k:
btn.emit(QtCore.SIGNAL('clicked()'))
super(CustomPrompt, self).keyPressEvent(event)
def setup_font_substitutions():
QtGui.QFont.insertSubstitutions('monospace', ['monaco', 'courier new'])
class PMButton(QtGui.QPushButton):
"""Toggle button with plus/minus icon images"""
def __init__(self, expanded=True, parent=None):
QtGui.QPushButton.__init__(self, parent)
size = QtCore.QSize(11, 11)
self.setIconSize(size)
self.setMaximumSize(size)
self.setFlat(True)
self.plus = geticon('plus')
self.minus = geticon('minus')
icon = expanded and self.minus or self.plus
self.setIcon(icon)
def clicked():
icon = self.is_expanded() and self.plus or self.minus
self.setIcon(icon)
self.clicked.connect(clicked)
def set_expanded(self, state=True):
icon = state and self.minus or self.plus
self.setIcon(icon)
def set_collapsed(self, state=True):
icon = state and self.plus or self.minus
self.setIcon(icon)
def is_expanded(self):
return self.icon().serialNumber() == self.minus.serialNumber()
def is_collapsed(self):
return not self.is_expanded()
class ClickableLabel(QtGui.QLabel):
clicked = QtCore.pyqtSignal()
def __init__(self, label, parent=None):
QtGui.QLabel.__init__(self, parent)
self.setText(label)
def mouseReleaseEvent(self, event):
self.clicked.emit()
class ExpanderLabel(QtGui.QWidget):
expanded = QtCore.pyqtSignal(bool)
def __init__(self, label, expanded=True, stretch=True, parent=None):
QtGui.QWidget.__init__(self, parent)
box = QtGui.QHBoxLayout()
box.setSpacing(4)
box.setContentsMargins(*(0,)*4)
self.button = PMButton(expanded, self)
self.button.clicked.connect(self.pm_clicked)
box.addWidget(self.button)
self.label = ClickableLabel(label, self)
self.label.clicked.connect(lambda: self.button.click())
box.addWidget(self.label)
if not stretch:
box.addStretch(0)
self.setLayout(box)
def pm_clicked(self):
self.expanded.emit(self.button.is_expanded())
def fileEditor(filename):
'Open a simple modal file editing dialog'
dialog = QtGui.QDialog()
dialog.setWindowFlags(dialog.windowFlags() & ~QtCore.Qt.WindowContextHelpButtonHint)
vbox = QtGui.QVBoxLayout()
dialog.setLayout(vbox)
editor = qsci()
editor.setBraceMatching(qsci.SloppyBraceMatch)
vbox.addWidget(editor)
BB = QtGui.QDialogButtonBox
bb = QtGui.QDialogButtonBox(BB.Save|BB.Cancel)
dialog.connect(bb, QtCore.SIGNAL('accepted()'),
dialog, QtCore.SLOT('accept()'))
dialog.connect(bb, QtCore.SIGNAL('rejected()'),
dialog, QtCore.SLOT('reject()'))
vbox.addWidget(bb)
lexer = Qsci.QsciLexerProperties()
editor.setLexer(lexer)
s = QtCore.QSettings()
ret = QtGui.QDialog.Rejected
try:
contents = open(filename, 'rb').read()
dialog.setWindowTitle(filename)
geomname = 'editor-geom'
editor.setText(contents)
editor.setModified(False)
dialog.restoreGeometry(s.value(geomname).toByteArray())
ret = dialog.exec_()
if ret == QtGui.QDialog.Accepted:
f = util.atomictempfile(filename, 'w', createmode=None)
f.write(editor.text())
f.rename()
s.setValue(geomname, dialog.saveGeometry())
except EnvironmentError, e:
qtlib.WarningMsgBox(_('Unable to read/write config file'),
hglib.tounicode(e), parent=dialog)
return ret
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