def layoutRow(self, rect, scale, row):
# [TODO]
if len(row) == 0:
return rect
if rect.width() > rect.height():
dir = 'Horizontal'
else:
dir = 'Vertical'
primary = max(rect.width(), rect.height())
sum = row.sumTotalSizes()
secondary = int(sum * (1.0 * scale) / primary)
if sum == 0: # Prevent division by zero.
return rect
if secondary < self._parentView.minTileSize(
): # We don't want tiles that small.
return rect
offset = 0
remaining = primary
for fileInfo in row:
childSize = int((1.0 * fileInfo.totalSize()) /
(1.0 * sum) * primary + 0.5)
if childSize > remaining: # Prevent overflow because of accumulated rounding errors
childSize = remaining
remaining -= childSize
if childSize >= self._parentView.minTileSize():
if dir == 'Horizontal':
childRect = Rect(Point(rect.x() + offset, rect.y()),
Size(childSize, secondary))
else:
childRect = Rect(Point(rect.x(),
rect.y() + offset),
Size(secondary, childSize))
tile = TreemapTile(self._parentView,
self,
fileInfo,
childRect,
orientation='Auto')
# What should I do with the tile ?
offset += childSize
if (dir == 'Horizontal'):
newRect = Rect(Point(rect.x(),
rect.y() + secondary),
Size(rect.width(),
rect.height() - secondary))
else:
newRect = Rect(Point(rect.x() + secondary, rect.y()),
Size(rect.width() - secondary, rect.height()))
return newRect
def rebuildTreemap( self, newRoot=None, newSize=None ):
needtoclean_savedRootUrl = False
if not newRoot :
(newRoot,newSize) = self._getparam_rebuildTreemap()
needtoclean_savedRootUrl = True
if not newSize :
newSize = self.visibleSize()
self._selectedTile = None;
self._selectionRect = None;
self._rootTile = None;
self.canvas().resize( newSize.width(), newSize.height() )
if newSize.width() >= UpdateMinSize and newSize.height() >= UpdateMinSize :
if newRoot :
self._rootTile = TreemapTile(
self, # parentView
None, # parentTile
newRoot, # orig
Rect( point=Point(0, 0), size=newSize ),
'Auto' )
# if self._tree.selection() :
# self.selectTile( self._tree.selection() )
if needtoclean_savedRootUrl :
self._savedRootUrl = ""
def __init__( self, parentView, parentTile, orig, rect, orientation = 'Auto' ) :
self._rect = Rect(rect=rect)
self._parentView = parentView
self._parentTile = parentTile
self._orig = orig
self._init()
self._parentView.addTileToDraw(self)
self.createChildren( rect, orientation )
def createChildrenSimple(self, rect, orientation):
dir = orientation
childDir = orientation
if dir == 'Auto':
if rect.width() > rect.height():
dir = 'Horizontal'
else:
dir = 'Vertical'
if orientation == 'Horizontal': childDir = 'Vertical'
if orientation == 'Vertical': childDir = 'Horizontal'
offset = 0
size = {'Horizontal': rect.width(), 'Vertical': rect.height()}[dir]
# count = 0
scale = (1.0 * size) / (1.0 * self._orig.totalSize())
fileInfoList = FileInfoList(self._orig,
minSize=self._parentView.minTileSize() /
scale,
bySize=True,
param='AsSubDir')
# KFileInfoSortedBySizeIterator it( _orig,
# (KFileSize) ( _parentView->minTileSize() / scale ),
# KDotEntryAsSubDir );
for fileInfo in fileInfoList:
childSize = fileInfo.totalSize()
if childSize >= self._parentView.minTileSize():
if dir == 'Horizontal':
childRect = Rect(point=Point(rect.x() + offset, rect.y()),
size=Size(childSize, rect.height()))
else:
childRect = Rect(point=Point(rect.x(),
rect.y() + offset),
size=Size(rect.width(), childSize))
tile = TreemapTile(self._parentView, self, fileInfo, childRect,
childDir)
offset += childSize
def __init__(self,
parentView,
parentTile,
fileinfo,
rect,
orientation='Auto'):
"""Constructor"""
self._rect = Rect(rect=rect)
# parentView is a TreemapView
self._parentView = parentView
self._parentTile = parentTile
self._fileinfo = fileinfo
self._init()
self._parentView.addTileToDraw(self)
self.createChildren(rect, orientation)
def createSquarifiedChildren( self, rect ) :
if self._orig.totalSize() == 0 :
return
scale = (1.0*rect.width()) * (1.0*rect.height()) / (1.0*self._orig.totalSize())
minSize = int( self._parentView.minTileSize() / scale )
fileInfoList = FileInfoList( self._orig, minSize=minSize, bySize=True, param='AsSubDir' )
fileInfoListIterator = iter(fileInfoList)
childrenRect = Rect(rect=rect)
fileInfoListIterator.next_nofail()
while fileInfoListIterator.isValid() :
#fileInfoListIterator.next_nofail()
row = self.squarify( childrenRect, scale, fileInfoListIterator )
# print " %s" % map(lambda x:x.name(),row._list)
childrenRect = self.layoutRow( childrenRect, scale, row )
def rebuildTreemap(self, newRoot, newSize=None):
"""Build/Rebuild the tree."""
if not newSize:
newSize = self.visibleSize()
self._selectedTile = None
self._selectionRect = None
self._rootTile = None
self.canvas().resize(newSize.width(), newSize.height())
if newSize.width() >= UpdateMinSize and newSize.height(
) >= UpdateMinSize:
if newRoot:
self._rootTile = TreemapTile(
self, # parentView
None, # parentTile
newRoot, # fileinfo
Rect(point=Point(0, 0), size=newSize),
'Auto')
def createSquarifiedChildren(self, rect):
"""This method create the tile, and if needed the sub tiles using the squarification algo from KDirStat."""
if self._fileinfo.totalArea() == 0:
return
scale = (1.0 * rect.width()) * (1.0 * rect.height()) / (
1.0 * self._fileinfo.totalArea())
minSize = int(self._parentView.minTileSize() / scale)
fileInfoList = FileInfoList(self._fileinfo,
minSize=minSize,
bySize=True,
param='AsSubDir')
fileInfoListIterator = iter(fileInfoList)
childrenRect = Rect(rect=rect)
fileInfoListIterator.next_nofail()
while fileInfoListIterator.isValid():
#fileInfoListIterator.next_nofail()
row = self.squarify(childrenRect, scale, fileInfoListIterator)
# print " %s" % map(lambda x:x.name(),row._list)
childrenRect = self.layoutRow(childrenRect, scale, row)
