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Port preserve_view_state to work with the grid view

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This commit is contained in:
Kovid Goyal 2013-08-02 14:30:25 +05:30
parent 5522a2bf94
commit ae3aa44596
2 changed files with 32 additions and 9 deletions
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10
src/calibre/gui2/library/alternate_views.py
View File

@ -374,7 +374,9 @@ class GridView(QListView):
self.setUniformItemSizes(True)
self.setWrapping(True)
self.setFlow(self.LeftToRight)
self.setLayoutMode(self.Batched)
# We cannot set layout mode to batched, because that breaks
# restore_vpos()
# self.setLayoutMode(self.Batched)
self.setResizeMode(self.Adjust)
self.setSelectionMode(self.ExtendedSelection)
self.setVerticalScrollMode(self.ScrollPerPixel)
@ -506,4 +508,10 @@ class GridView(QListView):
def do_sort(self, column, ascending):
self.sort_requested.emit(column, ascending)
def restore_vpos(self, vpos):
self.verticalScrollBar().setValue(vpos)
def restore_hpos(self, hpos):
pass
setup_dnd_interface(GridView)

31
src/calibre/gui2/library/views.py
View File

@ -87,18 +87,24 @@ class PreserveViewState(object): # {{{
require_selected_ids=True):
self.view = view
self.require_selected_ids = require_selected_ids
self.selected_ids = set()
self.current_id = None
self.preserve_hpos = preserve_hpos
self.preserve_vpos = preserve_vpos
self.init_vals()
def init_vals(self):
self.selected_ids = set()
self.current_id = None
self.vscroll = self.hscroll = 0
self.original_view = None
def __enter__(self):
self.init_vals()
try:
view = self.original_view = self.view.alternate_views.current_view
self.selected_ids = self.view.get_selected_ids()
self.current_id = self.view.current_id
self.vscroll = self.view.verticalScrollBar().value()
self.hscroll = self.view.horizontalScrollBar().value()
self.vscroll = view.verticalScrollBar().value()
self.hscroll = view.horizontalScrollBar().value()
except:
import traceback
traceback.print_exc()
@ -110,10 +116,19 @@ class PreserveViewState(object): # {{{
if self.selected_ids:
self.view.select_rows(self.selected_ids, using_ids=True,
scroll=False, change_current=self.current_id is None)
if self.preserve_vpos:
self.view.verticalScrollBar().setValue(self.vscroll)
if self.preserve_hpos:
self.view.horizontalScrollBar().setValue(self.hscroll)
view = self.original_view
if self.view.alternate_views.current_view is view:
if self.preserve_vpos:
if hasattr(view, 'restore_vpos'):
view.restore_vpos(self.vscroll)
else:
view.verticalScrollBar().setValue(self.vscroll)
if self.preserve_hpos:
if hasattr(view, 'restore_hpos'):
view.restore_hpos(self.hscroll)
else:
view.horizontalScrollBar().setValue(self.hscroll)
self.init_vals()
@dynamic_property
def state(self):