qweechat/buffer.py

   1 # -*- coding: utf-8 -*-
   2 #
   3 # buffer.py - management of WeeChat buffers/nicklist
   4 #
   5 # Copyright (C) 2011-2016 Sébastien Helleu <flashcode@flashtux.org>
   6 #
   7 # This file is part of QWeeChat, a Qt remote GUI for WeeChat.
   8 #
   9 # QWeeChat is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # QWeeChat is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with QWeeChat.  If not, see <http://www.gnu.org/licenses/>.
  21 #
  22
  23 from pkg_resources import resource_filename
  24 import qt_compat
  25 QtCore = qt_compat.import_module('QtCore')
  26 QtGui = qt_compat.import_module('QtGui')
  27 from chat import ChatTextEdit
  28 from input import InputLineEdit
  29 import weechat.color as color
  30
  31
  32 class GenericListWidget(QtGui.QListWidget):
  33     """Generic QListWidget with dynamic size."""
  34
  35     def __init__(self, *args):
  36         QtGui.QListWidget.__init__(*(self,) + args)
  37         self.setMaximumWidth(100)
  38         self.setTextElideMode(QtCore.Qt.ElideNone)
  39         self.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarAlwaysOff)
  40         self.setFocusPolicy(QtCore.Qt.NoFocus)
  41         pal = self.palette()
  42         pal.setColor(QtGui.QPalette.Highlight, QtGui.QColor('#ddddff'))
  43         pal.setColor(QtGui.QPalette.HighlightedText, QtGui.QColor('black'))
  44         self.setPalette(pal)
  45
  46     def auto_resize(self):
  47         size = self.sizeHintForColumn(0)
  48         if size > 0:
  49             size += 4
  50         self.setMaximumWidth(size)
  51
  52     def clear(self, *args):
  53         """Re-implement clear to set dynamic size after clear."""
  54         QtGui.QListWidget.clear(*(self,) + args)
  55         self.auto_resize()
  56
  57     def addItem(self, *args):
  58         """Re-implement addItem to set dynamic size after add."""
  59         QtGui.QListWidget.addItem(*(self,) + args)
  60         self.auto_resize()
  61
  62     def insertItem(self, *args):
  63         """Re-implement insertItem to set dynamic size after insert."""
  64         QtGui.QListWidget.insertItem(*(self,) + args)
  65         self.auto_resize()
  66
  67
  68 class BufferListWidget(GenericListWidget):
  69     """Widget with list of buffers."""
  70
  71     def __init__(self, *args):
  72         GenericListWidget.__init__(*(self,) + args)
  73
  74     def switch_prev_buffer(self):
  75         if self.currentRow() > 0:
  76             self.setCurrentRow(self.currentRow() - 1)
  77         else:
  78             self.setCurrentRow(self.count() - 1)
  79
  80     def switch_next_buffer(self):
  81         if self.currentRow() < self.count() - 1:
  82             self.setCurrentRow(self.currentRow() + 1)
  83         else:
  84             self.setCurrentRow(0)
  85
  86
  87 class BufferWidget(QtGui.QWidget):
  88     """
  89     Widget with (from top to bottom):
  90     title, chat + nicklist (optional) + prompt/input.
  91     """
  92
  93     def __init__(self, display_nicklist=False):
  94         QtGui.QWidget.__init__(self)
  95
  96         # title
  97         self.title = QtGui.QLineEdit()
  98         self.title.setFocusPolicy(QtCore.Qt.NoFocus)
  99
 100         # splitter with chat + nicklist
 101         self.chat_nicklist = QtGui.QSplitter()
 102         self.chat_nicklist.setSizePolicy(QtGui.QSizePolicy.Expanding,
 103                                          QtGui.QSizePolicy.Expanding)
 104         self.chat = ChatTextEdit(debug=False)
 105         self.chat_nicklist.addWidget(self.chat)
 106         self.nicklist = GenericListWidget()
 107         if not display_nicklist:
 108             self.nicklist.setVisible(False)
 109         self.chat_nicklist.addWidget(self.nicklist)
 110
 111         # prompt + input
 112         self.hbox_edit = QtGui.QHBoxLayout()
 113         self.hbox_edit.setContentsMargins(0, 0, 0, 0)
 114         self.hbox_edit.setSpacing(0)
 115         self.input = InputLineEdit(self.chat)
 116         self.hbox_edit.addWidget(self.input)
 117         prompt_input = QtGui.QWidget()
 118         prompt_input.setLayout(self.hbox_edit)
 119
 120         # vbox with title + chat/nicklist + prompt/input
 121         vbox = QtGui.QVBoxLayout()
 122         vbox.setContentsMargins(0, 0, 0, 0)
 123         vbox.setSpacing(0)
 124         vbox.addWidget(self.title)
 125         vbox.addWidget(self.chat_nicklist)
 126         vbox.addWidget(prompt_input)
 127
 128         self.setLayout(vbox)
 129
 130     def set_title(self, title):
 131         """Set buffer title."""
 132         self.title.clear()
 133         if title is not None:
 134             self.title.setText(title)
 135
 136     def set_prompt(self, prompt):
 137         """Set prompt."""
 138         if self.hbox_edit.count() > 1:
 139             self.hbox_edit.takeAt(0)
 140         if prompt is not None:
 141             label = QtGui.QLabel(prompt)
 142             label.setContentsMargins(0, 0, 5, 0)
 143             self.hbox_edit.insertWidget(0, label)
 144
 145
 146 class Buffer(QtCore.QObject):
 147     """A WeeChat buffer."""
 148
 149     bufferInput = qt_compat.Signal(str, str)
 150
 151     def __init__(self, data={}):
 152         QtCore.QObject.__init__(self)
 153         self.data = data
 154         self.nicklist = {}
 155         self.widget = BufferWidget(display_nicklist=self.data.get('nicklist',
 156                                                                   0))
 157         self.update_title()
 158         self.update_prompt()
 159         self.widget.input.textSent.connect(self.input_text_sent)
 160
 161     def pointer(self):
 162         """Return pointer on buffer."""
 163         return self.data.get('__path', [''])[0]
 164
 165     def update_title(self):
 166         """Update title."""
 167         try:
 168             self.widget.set_title(
 169                 color.remove(self.data['title'].decode('utf-8')))
 170         except:
 171             self.widget.set_title(None)
 172
 173     def update_prompt(self):
 174         """Update prompt."""
 175         try:
 176             self.widget.set_prompt(self.data['local_variables']['nick'])
 177         except:
 178             self.widget.set_prompt(None)
 179
 180     def input_text_sent(self, text):
 181         """Called when text has to be sent to buffer."""
 182         if self.data:
 183             self.bufferInput.emit(self.data['full_name'], text)
 184
 185     def nicklist_add_item(self, parent, group, prefix, name, visible):
 186         """Add a group/nick in nicklist."""
 187         if group:
 188             self.nicklist[name] = {
 189                 'visible': visible,
 190                 'nicks': []
 191             }
 192         else:
 193             self.nicklist[parent]['nicks'].append({
 194                 'prefix': prefix,
 195                 'name': name,
 196                 'visible': visible,
 197             })
 198
 199     def nicklist_remove_item(self, parent, group, name):
 200         """Remove a group/nick from nicklist."""
 201         if group:
 202             if name in self.nicklist:
 203                 del self.nicklist[name]
 204         else:
 205             if parent in self.nicklist:
 206                 self.nicklist[parent]['nicks'] = [
 207                     nick for nick in self.nicklist[parent]['nicks']
 208                     if nick['name'] != name
 209                 ]
 210
 211     def nicklist_update_item(self, parent, group, prefix, name, visible):
 212         """Update a group/nick in nicklist."""
 213         if group:
 214             if name in self.nicklist:
 215                 self.nicklist[name]['visible'] = visible
 216         else:
 217             if parent in self.nicklist:
 218                 for nick in self.nicklist[parent]['nicks']:
 219                     if nick['name'] == name:
 220                         nick['prefix'] = prefix
 221                         nick['visible'] = visible
 222                         break
 223
 224     def nicklist_refresh(self):
 225         """Refresh nicklist."""
 226         self.widget.nicklist.clear()
 227         for group in sorted(self.nicklist):
 228             for nick in sorted(self.nicklist[group]['nicks'],
 229                                key=lambda n: n['name']):
 230                 prefix_color = {
 231                     '': '',
 232                     ' ': '',
 233                     '+': 'yellow',
 234                 }
 235                 color = prefix_color.get(nick['prefix'], 'green')
 236                 if color:
 237                     icon = QtGui.QIcon(
 238                         resource_filename(__name__,
 239                                           'data/icons/bullet_%s_8x8.png' %
 240                                           color))
 241                 else:
 242                     pixmap = QtGui.QPixmap(8, 8)
 243                     pixmap.fill()
 244                     icon = QtGui.QIcon(pixmap)
 245                 item = QtGui.QListWidgetItem(icon, nick['name'])
 246                 self.widget.nicklist.addItem(item)
 247                 self.widget.nicklist.setVisible(True)