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# This file is part of the Frescobaldi project, http://www.frescobaldi.org/
#
# Copyright (c) 2008 - 2014 by Wilbert Berendsen
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
# See http://www.gnu.org/licenses/ for more information.
"""
A QGroupBox in the Quick Insert Panel that auto-layouts its buttons.
"""
from __future__ import print_function
import weakref
from PyQt5.QtCore import QEvent, QSize
from PyQt5.QtGui import QKeySequence
from PyQt5.QtWidgets import (
QAction, QGridLayout, QGroupBox, QMenu, QToolButton, QToolTip)
import actioncollection
import actioncollectionmanager
import app
import cursortools
import widgets.shortcuteditdialog
class ButtonGroup(QGroupBox):
"""Inherit this class to create a group of buttons.
You should implement:
- translateUI() to set the title
- actionData() to yield name, icon, function for every button
- actionTexts() to yield name, text for every button
- actionTriggered() (if you don't supply a function) to implement the
handler for the action.
"""
def __init__(self, tool):
super(ButtonGroup, self).__init__(tool)
self._tool = weakref.ref(tool)
grid = QGridLayout()
grid.setSpacing(0)
grid.setContentsMargins(0, 0, 0, 0)
self.setLayout(grid)
self.createActions()
self.setActionTexts()
self.createButtons()
app.translateUI(self)
app.languageChanged.connect(self.setActionTexts)
def translateUI(self):
"""Should set our title."""
pass
def tool(self):
return self._tool()
def mainwindow(self):
return self.tool().panel().parent().mainwindow()
def actionDict(self):
"""Returns the Quick Insert action dictionary."""
return self.tool().panel().actionDict
def direction(self):
""" The value of the generic direction widget.
-1 == Down
0 == Neutral
1 == Up
"""
return 1 - self.tool().panel().direction.currentIndex()
def createActions(self):
actionDict = self.actionDict()
self._names = []
for name, icon, function in self.actionData():
a = actionDict[name] = QAction(self, icon=icon)
a.triggered.connect(self.focusView)
if function is None:
function = (lambda name: lambda: self.actionTriggered(name))(name)
a.triggered.connect(function)
self._names.append(name)
def setActionTexts(self):
actionDict = self.actionDict()
for name, text in self.actionTexts():
actionDict[name].setText(text)
actionDict[name].setToolTip(text)
def createButtons(self):
actionDict = self.actionDict()
layout = self.layout()
row = layout.rowCount()
columns = 5
for num, name in enumerate(self._names, row*columns):
b = Button(self, name, actionDict[name])
layout.addWidget(b, *divmod(num, columns))
def focusView(self):
"""Always called when an action is triggered; focuses the main view."""
self.mainwindow().currentView().setFocus()
def actionData(self):
"""Should yield name, icon, function (may be None) for every action."""
pass
def actionTexts(self):
"""Should yield name, text for very action."""
pass
def actionTriggered(self, name):
"""Called by default when a button is activated."""
print (("Action triggered: {0}").format(name)) # DEBUG
def insertText(self, text, indent=True, blankline=False):
"""Insert text in the current document and focuses the document again.
Besides the text, the following keyword arguments may be used:
indent (default: True): The text will be indented if there are one or
more newlines in it.
blankline (default: False): A newline will be prepended to text if the
cursor is currently not on a blank line.
"""
cursor = self.mainwindow().textCursor()
if blankline and not cursor.hasSelection() and not cursortools.isblank_before(cursor):
text = '\n' + text
pos = cursor.selectionStart()
cursor.insertText(text)
if indent and '\n' in text:
cursor.setPosition(pos, cursor.KeepAnchor)
import indent
with cursortools.compress_undo(cursor, True):
indent.re_indent(cursor)
class Button(QToolButton):
def __init__(self, group, name, action):
super(Button, self).__init__(group)
self.setObjectName(name)
self.setDefaultAction(action)
self.setAutoRaise(True)
self.setIconSize(QSize(22, 22))
def actionCollection(self):
return self.parent().tool().panel().parent().actionCollection
def key(self):
"""Returns a textual representation of the configured shortcut if it exists."""
shortcuts = self.actionCollection().shortcuts(self.objectName())
if shortcuts:
key = shortcuts[0].toString(QKeySequence.NativeText)
if len(shortcuts) > 1:
key += "..."
return key
def event(self, ev):
if ev.type() == QEvent.ToolTip:
text = self.defaultAction().text()
key = self.key()
if key:
text = _("{name} ({key})").format(name=text, key=key)
QToolTip.showText(ev.globalPos(), text)
return True
return super(Button, self).event(ev)
def contextMenuEvent(self, ev):
m = QMenu(self)
a = m.addAction(_("Configure Keyboard Shortcut ({key})").format(key = self.key() or _("None")))
a.triggered.connect(self.editShortcut)
m.exec_(ev.globalPos())
m.deleteLater()
def editShortcut(self):
"""Edit our shortcut."""
from widgets import shortcuteditdialog
mainwindow = self.parent().mainwindow()
action = QAction(self.defaultAction().icon(), self.defaultAction().text(), None)
action.setShortcuts(self.actionCollection().shortcuts(self.objectName()) or [])
default = self.actionCollection().defaults().get(self.objectName())
mgr = actioncollectionmanager.manager(mainwindow)
skip = (self.actionCollection(), self.objectName())
cb = mgr.findShortcutConflict
dlg = shortcuteditdialog.ShortcutEditDialog(self, cb, skip)
if dlg.editAction(action, default):
mgr.removeShortcuts(action.shortcuts())
self.actionCollection().setShortcuts(self.objectName(), action.shortcuts())
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