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Implement collapsing of live css groups

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This commit is contained in:
Kovid Goyal 2014-05-20 13:14:10 +05:30
parent 6ed0ec5a70
commit 6dcf731564
1 changed files with 26 additions and 1 deletions
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27
src/calibre/gui2/tweak_book/live_css.py
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@ -10,7 +10,7 @@ import json, math
from PyQt4.Qt import (
QWidget, QTimer, QStackedLayout, QLabel, QScrollArea, QVBoxLayout,
QPainter, Qt, QFontInfo, QPalette, QRect, QSize, QSizePolicy)
QPainter, Qt, QFontInfo, QPalette, QRect, QSize, QSizePolicy, pyqtSignal)
from calibre.constants import iswindows
from calibre.gui2.tweak_book import editors, actions, current_container, tprefs
@ -19,6 +19,8 @@ from calibre.gui2.tweak_book.editor.text import default_font_family
class Heading(QWidget):
toggled = pyqtSignal(object)
def __init__(self, text, expanded=True, parent=None):
QWidget.__init__(self, parent)
self.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Minimum)
@ -38,6 +40,15 @@ class Heading(QWidget):
f.setPointSize(int(math.ceil(1.2 * sz)))
self.setFont(f)
def mousePressEvent(self, ev):
if ev.button() == Qt.LeftButton:
ev.accept()
self.expanded ^= True
self.toggled.emit(self)
self.update()
else:
return QWidget.mousePressEvent(self, ev)
@property
def rendered_text(self):
return ('▾' if self.expanded else '▸') + '\xa0' + self.text
@ -169,6 +180,9 @@ class Box(QWidget):
def show_data(self, data):
for w in self.widgets:
self.layout().removeWidget(w)
for x in ('toggled',):
if hasattr(w, x):
getattr(w, x).disconnect()
w.deleteLater()
self.widgets = []
for node in data['nodes']:
@ -178,18 +192,29 @@ class Box(QWidget):
else:
title = _('Matched CSS rules for %s') % node_name
h = Heading(title, parent=self)
h.toggled.connect(self.heading_toggled)
self.widgets.append(h), self.layout().addWidget(h)
for i, declaration in enumerate(node['css']):
d = Declaration(data['html_name'], declaration, is_first=i == 0, parent=self)
self.widgets.append(d), self.layout().addWidget(d)
h = Heading(_('Computed final style'), parent=self)
h.toggled.connect(self.heading_toggled)
self.widgets.append(h), self.layout().addWidget(h)
keys = sorted(data['computed_css'])
declaration = {'properties':[[k, data['computed_css'][k], ''] for k in keys]}
d = Declaration(None, declaration, is_first=True, parent=self)
self.widgets.append(d), self.layout().addWidget(d)
def heading_toggled(self, heading):
for i, w in enumerate(self.widgets):
if w is heading:
for b in self.widgets[i + 1:]:
if isinstance(b, Heading):
break
b.setVisible(heading.expanded)
break
def relayout(self):
for w in self.widgets:
w.do_layout()