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Viewer: Auto-expand entries in the Table of Contents when viewing the corresponding location in the book.

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Kovid Goyal 2019-12-01 14:23:57 +05:30
parent ccce39da50
commit d6ee7238bb
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1 changed files with 11 additions and 0 deletions
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11
src/calibre/gui2/viewer/toc.py
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@ -51,6 +51,14 @@ class TOCView(QTreeView):
self.customContextMenuRequested.connect(self.context_menu) self.customContextMenuRequested.connect(self.context_menu)
QApplication.instance().palette_changed.connect(self.set_style_sheet, type=Qt.QueuedConnection) QApplication.instance().palette_changed.connect(self.set_style_sheet, type=Qt.QueuedConnection)
def setModel(self, model):
QTreeView.setModel(self, model)
model.auto_expand_nodes.connect(self.auto_expand_indices, type=Qt.QueuedConnection)
def auto_expand_indices(self, indices):
for idx in indices:
self.setExpanded(idx, True)
def set_style_sheet(self): def set_style_sheet(self):
self.setStyleSheet(''' self.setStyleSheet('''
QTreeView { QTreeView {
@ -195,6 +203,8 @@ class TOCItem(QStandardItem):
class TOC(QStandardItemModel): class TOC(QStandardItemModel):
auto_expand_nodes = pyqtSignal(object)
def __init__(self, toc=None): def __init__(self, toc=None):
QStandardItemModel.__init__(self) QStandardItemModel.__init__(self)
self.current_query = {'text':'', 'index':-1, 'items':()} self.current_query = {'text':'', 'index':-1, 'items':()}
@ -244,6 +254,7 @@ class TOC(QStandardItemModel):
if node is not None: if node is not None:
viewed_nodes |= {x.node_id for x in node.ancestors} viewed_nodes |= {x.node_id for x in node.ancestors}
viewed_nodes.add(node.node_id) viewed_nodes.add(node.node_id)
self.auto_expand_nodes.emit([n.index() for n in node.ancestors])
for node in self.all_items: for node in self.all_items:
is_being_viewed = node.node_id in viewed_nodes is_being_viewed = node.node_id in viewed_nodes
if is_being_viewed != node.is_being_viewed: if is_being_viewed != node.is_being_viewed: