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ListView.py
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ListView.py
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# Copyright (C) 2009-2011 AG Projects. See LICENSE for details.
#
from AppKit import (NSRectFill,
NSWindowBelow,
NSWindowDidBecomeKeyNotification,
NSWindowDidResignKeyNotification)
from Foundation import (NSColor,
NSMaxY,
NSNotificationCenter,
NSWidth)
from VerticalBoxView import VerticalBoxView
from util import osx_version
class ListView(VerticalBoxView):
allowMultiSelection = False
allowSelection = True
alternateRows = True
selection = -1
def initWithFrame_(self, frame):
self = super(ListView, self).initWithFrame_(frame)
if self:
self.setBackgroundColor_(NSColor.whiteColor())
NSNotificationCenter.defaultCenter().addObserver_selector_name_object_(self, "windowChangedKey:", NSWindowDidBecomeKeyNotification, None)
NSNotificationCenter.defaultCenter().addObserver_selector_name_object_(self, "windowChangedKey:", NSWindowDidResignKeyNotification, None)
return self
def dealloc(self):
NSNotificationCenter.defaultCenter().removeObserver_(self)
VerticalBoxView.dealloc(self)
def windowChangedKey_(self, notification):
if self.window() == notification.object():
self.setNeedsDisplay_(True)
def numberOfItems(self):
return self.subviews().count()
def acceptsFirstResponder(self):
return True
def drawRect_(self, rect):
VerticalBoxView.drawRect_(self, rect)
if self.alternateRows:
i = 0
NSColor.colorWithCalibratedRed_green_blue_alpha_(237/256.0, 243/256.0, 254/256.0, 1.0).set()
for v in self.subviews():
if i % 2 == 1:
NSRectFill(v.frame())
i += 1
if self.selection != -1 and self.selection < self.subviews().count():
if self.window().isKeyWindow():
NSColor.alternateSelectedControlColor().set()
else:
NSColor.lightGrayColor().set()
NSRectFill(self.subviews()[self.selection].frame())
def minimumHeight(self):
return max(VerticalBoxView.minimumHeight(self), 1)#NSHeight(self.enclosingScrollView().documentVisibleRect()))
def insertItemView_before_(self, view, before):
# check if its already in
for child in self.subviews():
if child == view:
return
frame = view.frame()
frame.origin.y = 0
frame.size.width = NSWidth(self.frame())
view.setFrame_(frame)
if before is None:
self.addSubview_(view)
else:
self.addSubview_positioned_relativeTo_(view, NSWindowBelow, before)
frame = self.frame()
frame.size.height = self.minimumHeight()
self.setFrame_(frame)
self.relayout()
def addItemView_(self, view):
self.insertItemView_before_(view, None)
def mouseDown_(self, event):
pos = self._convertPointFromBacking(event.locationInWindow())
row = -1
for item in self.subviews():
row += 1
if pos.y < NSMaxY(item.frame()):
self.setSelectedRow_(row)
return
self.setSelectedRow_(-1)
def resizeSubviewsWithOldSize_(self, oldSize):
self.relayout()
def setSelectedRow_(self, row):
subviews = self.subviews()
if self.selection != -1:
if self.selection < subviews.count():
sv = subviews[self.selection]
if sv.respondsToSelector_("setSelected:"):
sv.setSelected_(False)
self.selection = row
if row != -1:
sv = subviews[row]
if sv.respondsToSelector_("setSelected:"):
sv.setSelected_(True)
self.setNeedsDisplay_(True)
def removeItemView_(self, view):
view.removeFromSuperview()
frame = self.frame()
frame.size.height = self.minimumHeight()
self.setFrame_(frame)
self.relayout()
def _convertPointFromBacking(self, *args, **kw):
if osx_version == '10.6':
return self.convertPointFromBase_(*args, **kw)
else:
return self.convertPointFromBacking_(*args, **kw)