qweechat/buffer.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3 #
   4 # buffer.py - management of WeeChat buffers/nicklist
   5 #
   6 # Copyright (C) 2011-2014 Sébastien Helleu <flashcode@flashtux.org>
   7 #
   8 # This file is part of QWeeChat, a Qt remote GUI for WeeChat.
   9 #
  10 # QWeeChat is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 3 of the License, or
  13 # (at your option) any later version.
  14 #
  15 # QWeeChat is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19 #
  20 # You should have received a copy of the GNU General Public License
  21 # along with QWeeChat.  If not, see <http://www.gnu.org/licenses/>.
  22 #
  23
  24 from pkg_resources import resource_filename
  25 import qt_compat
  26 QtCore = qt_compat.import_module('QtCore')
  27 QtGui = qt_compat.import_module('QtGui')
  28 from chat import ChatTextEdit
  29 from input import InputLineEdit
  30 import weechat.color as color
  31
  32
  33 class GenericListWidget(QtGui.QListWidget):
  34     """Generic QListWidget with dynamic size."""
  35
  36     def __init__(self, *args):
  37         QtGui.QListWidget.__init__(*(self,) + args)
  38         self.setMaximumWidth(100)
  39         self.setTextElideMode(QtCore.Qt.ElideNone)
  40         self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
  41         self.setFocusPolicy(QtCore.Qt.NoFocus)
  42         pal = self.palette()
  43         pal.setColor(QtGui.QPalette.Highlight, QtGui.QColor('#ddddff'))
  44         pal.setColor(QtGui.QPalette.HighlightedText, QtGui.QColor('black'))
  45         self.setPalette(pal)
  46
  47     def auto_resize(self):
  48         size = self.sizeHintForColumn(0)
  49         if size > 0:
  50             size += 4
  51         self.setMaximumWidth(size)
  52
  53     def clear(self, *args):
  54         """Re-implement clear to set dynamic size after clear."""
  55         QtGui.QListWidget.clear(*(self,) + args)
  56         self.auto_resize()
  57
  58     def addItem(self, *args):
  59         """Re-implement addItem to set dynamic size after add."""
  60         QtGui.QListWidget.addItem(*(self,) + args)
  61         self.auto_resize()
  62
  63     def insertItem(self, *args):
  64         """Re-implement insertItem to set dynamic size after insert."""
  65         QtGui.QListWidget.insertItem(*(self,) + args)
  66         self.auto_resize()
  67
  68
  69 class BufferListWidget(GenericListWidget):
  70     """Widget with list of buffers."""
  71
  72     def __init__(self, *args):
  73         GenericListWidget.__init__(*(self,) + args)
  74
  75     def switch_prev_buffer(self):
  76         if self.currentRow() > 0:
  77             self.setCurrentRow(self.currentRow() - 1)
  78         else:
  79             self.setCurrentRow(self.count() - 1)
  80
  81     def switch_next_buffer(self):
  82         if self.currentRow() < self.count() - 1:
  83             self.setCurrentRow(self.currentRow() + 1)
  84         else:
  85             self.setCurrentRow(0)
  86
  87
  88 class BufferWidget(QtGui.QWidget):
  89     """
  90     Widget with (from top to bottom):
  91     title, chat + nicklist (optional) + prompt/input.
  92     """
  93
  94     def __init__(self, display_nicklist=False):
  95         QtGui.QWidget.__init__(self)
  96
  97         # title
  98         self.title = QtGui.QLineEdit()
  99         self.title.setFocusPolicy(QtCore.Qt.NoFocus)
 100
 101         # splitter with chat + nicklist
 102         self.chat_nicklist = QtGui.QSplitter()
 103         self.chat_nicklist.setSizePolicy(QtGui.QSizePolicy.Expanding,
 104                                          QtGui.QSizePolicy.Expanding)
 105         self.chat = ChatTextEdit(debug=False)
 106         self.chat_nicklist.addWidget(self.chat)
 107         self.nicklist = GenericListWidget()
 108         if not display_nicklist:
 109             self.nicklist.setVisible(False)
 110         self.chat_nicklist.addWidget(self.nicklist)
 111
 112         # prompt + input
 113         self.hbox_edit = QtGui.QHBoxLayout()
 114         self.hbox_edit.setContentsMargins(0, 0, 0, 0)
 115         self.hbox_edit.setSpacing(0)
 116         self.input = InputLineEdit(self.chat)
 117         self.hbox_edit.addWidget(self.input)
 118         prompt_input = QtGui.QWidget()
 119         prompt_input.setLayout(self.hbox_edit)
 120
 121         # vbox with title + chat/nicklist + prompt/input
 122         vbox = QtGui.QVBoxLayout()
 123         vbox.setContentsMargins(0, 0, 0, 0)
 124         vbox.setSpacing(0)
 125         vbox.addWidget(self.title)
 126         vbox.addWidget(self.chat_nicklist)
 127         vbox.addWidget(prompt_input)
 128
 129         self.setLayout(vbox)
 130
 131     def set_title(self, title):
 132         """Set buffer title."""
 133         self.title.clear()
 134         if title is not None:
 135             self.title.setText(title)
 136
 137     def set_prompt(self, prompt):
 138         """Set prompt."""
 139         if self.hbox_edit.count() > 1:
 140             self.hbox_edit.takeAt(0)
 141         if prompt is not None:
 142             label = QtGui.QLabel(prompt)
 143             label.setContentsMargins(0, 0, 5, 0)
 144             self.hbox_edit.insertWidget(0, label)
 145
 146
 147 class Buffer(QtCore.QObject):
 148     """A WeeChat buffer."""
 149
 150     bufferInput = qt_compat.Signal(str, str)
 151
 152     def __init__(self, data={}):
 153         QtCore.QObject.__init__(self)
 154         self.data = data
 155         self.nicklist = {}
 156         self.widget = BufferWidget(display_nicklist=self.data.get('nicklist',
 157                                                                   0))
 158         self.update_title()
 159         self.update_prompt()
 160         self.widget.input.textSent.connect(self.input_text_sent)
 161
 162     def pointer(self):
 163         """Return pointer on buffer."""
 164         return self.data.get('__path', [''])[0]
 165
 166     def update_title(self):
 167         """Update title."""
 168         try:
 169             self.widget.set_title(
 170                 color.remove(self.data['title'].decode('utf-8')))
 171         except:
 172             self.widget.set_title(None)
 173
 174     def update_prompt(self):
 175         """Update prompt."""
 176         try:
 177             self.widget.set_prompt(self.data['local_variables']['nick'])
 178         except:
 179             self.widget.set_prompt(None)
 180
 181     def input_text_sent(self, text):
 182         """Called when text has to be sent to buffer."""
 183         if self.data:
 184             self.bufferInput.emit(self.data['full_name'], text)
 185
 186     def nicklist_add_item(self, parent, group, prefix, name, visible):
 187         """Add a group/nick in nicklist."""
 188         if group:
 189             self.nicklist[name] = {
 190                 'visible': visible,
 191                 'nicks': []
 192             }
 193         else:
 194             self.nicklist[parent]['nicks'].append({'prefix': prefix,
 195                                                    'name': name,
 196                                                    'visible': visible})
 197
 198     def nicklist_remove_item(self, parent, group, name):
 199         """Remove a group/nick from nicklist."""
 200         if group:
 201             if name in self.nicklist:
 202                 del self.nicklist[name]
 203         else:
 204             if parent in self.nicklist:
 205                 self.nicklist[parent]['nicks'] = [
 206                     nick for nick in self.nicklist[parent]['nicks']
 207                     if nick['name'] != name
 208                 ]
 209
 210     def nicklist_update_item(self, parent, group, prefix, name, visible):
 211         """Update a group/nick in nicklist."""
 212         if group:
 213             if name in self.nicklist:
 214                 self.nicklist[name]['visible'] = visible
 215         else:
 216             if parent in self.nicklist:
 217                 for nick in self.nicklist[parent]['nicks']:
 218                     if nick['name'] == name:
 219                         nick['prefix'] = prefix
 220                         nick['visible'] = visible
 221                         break
 222
 223     def nicklist_refresh(self):
 224         """Refresh nicklist."""
 225         self.widget.nicklist.clear()
 226         for group in sorted(self.nicklist):
 227             for nick in sorted(self.nicklist[group]['nicks'],
 228                                key=lambda n: n['name']):
 229                 prefix_color = {'': '', ' ': '', '+': 'yellow'}
 230                 color = prefix_color.get(nick['prefix'], 'green')
 231                 if color:
 232                     icon = QtGui.QIcon(
 233                         resource_filename(__name__,
 234                                           'data/icons/bullet_%s_8x8.png' %
 235                                           color))
 236                 else:
 237                     pixmap = QtGui.QPixmap(8, 8)
 238                     pixmap.fill()
 239                     icon = QtGui.QIcon(pixmap)
 240                 item = QtGui.QListWidgetItem(icon, nick['name'])
 241                 self.widget.nicklist.addItem(item)
 242                 self.widget.nicklist.setVisible(True)