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vmj-qt
Commit 0cb8b37e authored by Dan Pascu's avatar Dan Pascu
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Improved session list selection and drag-and-drop behavior

parent 94c53baa
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Showing with 80 additions and 31 deletions
blink/sessions.py
View file @ 0cb8b37e
......@@ -8,8 +8,8 @@ __all__ = ['Conference', 'SessionItem', 'SessionModel', 'SessionListView']
import cPickle as pickle
from PyQt4 import uic
from PyQt4.QtCore import Qt, QAbstractListModel, QByteArray, QMimeData, QModelIndex, QSize, QStringList, QTimer, pyqtSignal
from PyQt4.QtGui import QAction, QBrush, QColor, QLinearGradient, QListView, QMenu, QPainter, QPen, QPixmap, QStyle, QStyledItemDelegate
from PyQt4.QtCore import Qt, QAbstractListModel, QByteArray, QEvent, QMimeData, QModelIndex, QSize, QStringList, QTimer, pyqtSignal
from PyQt4.QtGui import QAction, QBrush, QColor, QDrag, QLinearGradient, QListView, QMenu, QPainter, QPen, QPixmap, QStyle, QStyledItemDelegate
from application.python.util import Null
......@@ -388,17 +388,6 @@ class SessionDelegate(QStyledItemDelegate):
# of the size that the widget ever had, so it will never shrink it.
session.widget.resize(option.rect.size())
if option.state & QStyle.State_Selected and not option.state & QStyle.State_HasFocus:
# This condition is met when dragging is started on this session.
# We use this to to draw the dragged session image.
painter.save()
pixmap = QPixmap(option.rect.size())
widget = DraggedSessionWidget(session.widget, None)
widget.resize(option.rect.size())
widget.render(pixmap)
painter.drawPixmap(option.rect, pixmap)
painter.restore()
def sizeHint(self, option, index):
return self.size_hint
......@@ -463,17 +452,16 @@ class SessionModel(QAbstractListModel):
def _DH_ApplicationXBlinkSessionList(self, mime_data, action, index):
session_list = self.session_list
selection_model = session_list.selectionModel()
selected_index = selection_model.selectedIndexes()[0]
source_row = selected_index.row()
source = self.sessions[source_row]
selection_mode = session_list.selectionMode()
session_list.setSelectionMode(session_list.NoSelection)
source = self.session_list.dragged_session
target = self.sessions[index.row()] if index.isValid() else None
if source.conference is None:
# the dragged session is not in a conference yet
if target is None:
return False
selection_mode = session_list.selectionMode()
session_list.setSelectionMode(session_list.NoSelection)
selection_model.clearSelection()
source_selected = source.widget.selected
target_selected = target.widget.selected
if target.conference is not None:
self._remove_session(source)
position = self.sessions.index(target.conference.sessions[-1]) + 1
......@@ -482,8 +470,14 @@ class SessionModel(QAbstractListModel):
self.endInsertRows()
session_list.openPersistentEditor(self.index(position))
source.conference = target.conference
session_list.scrollTo(self.index(position), session_list.EnsureVisible) # or PositionAtBottom
source_index = self.index(position)
if source_selected:
selection_model.select(source_index, selection_model.Select)
elif target_selected:
source.widget.selected = True
session_list.scrollTo(source_index, session_list.EnsureVisible) # or PositionAtBottom
else:
source_row = self.sessions.index(source)
target_row = index.row()
first, last = (source, target) if source_row < target_row else (target, source)
self._remove_session(source)
......@@ -496,19 +490,18 @@ class SessionModel(QAbstractListModel):
conference = Conference()
first.conference = conference
last.conference = conference
position = self.sessions.index(source)
if source_selected:
selection_model.select(self.index(self.sessions.index(source)), selection_model.Select)
elif target_selected:
selection_model.select(self.index(self.sessions.index(target)), selection_model.Select)
session_list.scrollToTop()
session_list.setSelectionMode(selection_mode)
selection_model.select(self.index(position), selection_model.Select)
else:
# the dragged session is in a conference
if target is not None and target.conference is source.conference:
return False
selection_mode = session_list.selectionMode()
session_list.setSelectionMode(session_list.NoSelection)
conference = source.conference
if len(conference.sessions) == 2:
selection_model.clearSelection()
conference_selected = source.widget.selected
first, last = conference.sessions
sibling = first if source is last else last
source.conference = None
......@@ -517,16 +510,24 @@ class SessionModel(QAbstractListModel):
self._remove_session(last)
self._add_session(first)
self._add_session(last)
position = self.sessions.index(sibling)
if conference_selected:
selection_model.select(self.index(self.sessions.index(sibling)), selection_model.ClearAndSelect)
session_list.scrollToBottom()
else:
try:
selected_index = selection_model.selectedIndexes()[0]
except IndexError:
pass
else:
if self.sessions[selected_index.row()] is source:
sibling = (session for session in source.conference.sessions if session is not source).next()
selection_model.select(self.index(self.sessions.index(sibling)), selection_model.ClearAndSelect)
source.conference = None
self._remove_session(source)
self._add_session(source)
position = self.sessions.index(conference.sessions[0])
session_list.scrollTo(self.index(position), session_list.PositionAtCenter)
session_list.setSelectionMode(selection_mode)
selection_model.select(self.index(position), selection_model.Select)
session_list.setSelectionMode(selection_mode)
return True
def _DH_ApplicationXBlinkContactList(self, mime_data, action, index):
......@@ -600,6 +601,9 @@ class SessionListView(QListView):
self.setItemDelegate(SessionDelegate(self))
self.setDropIndicatorShown(False)
self.actions = ContextMenuActions()
self.dragged_session = None
self._pressed_position = None
self._pressed_index = None
def setModel(self, model):
selection_model = self.selectionModel() or Null
......@@ -625,6 +629,48 @@ class SessionListView(QListView):
def contextMenuEvent(self, event):
pass
def mousePressEvent(self, event):
self._pressed_position = event.pos()
self._pressed_index = self.indexAt(self._pressed_position)
super(SessionListView, self).mousePressEvent(event)
def mouseReleaseEvent(self, event):
self._pressed_position = None
self._pressed_index = None
super(SessionListView, self).mouseReleaseEvent(event)
def selectionCommand(self, index, event=None):
selection_model = self.selectionModel()
if not index.isValid() or event is None:
return selection_model.NoUpdate
elif event.type() == QEvent.MouseButtonPress and not selection_model.selectedIndexes():
return selection_model.ClearAndSelect
elif event.type() in (QEvent.MouseButtonPress, QEvent.MouseMove):
return selection_model.NoUpdate
elif event.type() == QEvent.MouseButtonRelease:
return selection_model.ClearAndSelect
else:
return super(SessionListView, self).selectionCommand(index, event)
def startDrag(self, supported_actions):
if self._pressed_index is not None and self._pressed_index.isValid():
model = self.model()
self.dragged_session = model.data(self._pressed_index)
rect = self.visualRect(self._pressed_index)
pixmap = QPixmap(rect.size())
pixmap.fill(Qt.transparent)
widget = DraggedSessionWidget(self.dragged_session.widget, None)
widget.resize(rect.size())
widget.render(pixmap)
drag = QDrag(self)
drag.setPixmap(pixmap)
drag.setMimeData(model.mimeData([self._pressed_index]))
drag.setHotSpot(self._pressed_position - rect.topLeft())
drag.exec_(supported_actions, Qt.CopyAction)
self.dragged_session = None
self._pressed_position = None
self._pressed_index = None
def dragEnterEvent(self, event):
event_source = event.source()
accepted_mime_types = set(self.model().accepted_mime_types)
......@@ -678,9 +724,9 @@ class SessionListView(QListView):
super(SessionListView, self).dropEvent(event)
def _DH_ApplicationXBlinkSessionList(self, event, index, rect, session):
model = self.model()
dragged_session = (model.data(index) for index in self.selectionModel().selectedIndexes()).next()
dragged_session = self.dragged_session
if not index.isValid():
model = self.model()
rect = self.viewport().rect()
rect.setTop(self.visualRect(model.index(len(model.sessions)-1)).bottom())
if dragged_session.conference is not None:
......
resources/blink.ui
View file @ 0cb8b37e
......@@ -686,6 +686,9 @@ buttons below.</string>
<property name="dragDropMode">
<enum>QAbstractItemView::DragDrop</enum>
</property>
<property name="verticalScrollMode">
<enum>QAbstractItemView::ScrollPerPixel</enum>
</property>
</widget>
</item>
<item>
......
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