# -*- coding: iso-8859-1 -*- # This software and supporting documentation are distributed by # Institut Federatif de Recherche 49 # CEA/NeuroSpin, Batiment 145, # 91191 Gif-sur-Yvette cedex # France # # This software is governed by the CeCILL license version 2 under # French law and abiding by the rules of distribution of free software. # You can use, modify and/or redistribute the software under the # terms of the CeCILL license version 2 as circulated by CEA, CNRS # and INRIA at the following URL "http://www.cecill.info". # # As a counterpart to the access to the source code and rights to copy, # modify and redistribute granted by the license, users are provided only # with a limited warranty and the software's author, the holder of the # economic rights, and the successive licensors have only limited # liability. # # In this respect, the user's attention is drawn to the risks associated # with loading, using, modifying and/or developing or reproducing the # software by the user in light of its specific status of free software, # that may mean that it is complicated to manipulate, and that also # therefore means that it is reserved for developers and experienced # professionals having in-depth computer knowledge. Users are therefore # encouraged to load and test the software's suitability as regards their # requirements in conditions enabling the security of their systems and/or # data to be ensured and, more generally, to use and operate it in the # same conditions as regards security. # # The fact that you are presently reading this means that you have had # knowledge of the CeCILL license version 2 and that you accept its terms. from PyQt4 import QtCore, QtGui from soma import aims from soma.qt4gui.rangeSlider import QRangeSlider from tempfile import mkstemp import anatomist.api as ana import os class PaletteEditor( QtGui.QGroupBox ): def __init__( self, image, default=None, title="", palette_filter=None, real_min = 0, real_max = 100, parent=None, sliderPrecision = 100, zoom = 1): QtGui.QGroupBox.__init__( self, parent ) self.real_min = real_min self.real_max = real_max self.sliderPrecision = sliderPrecision a = ana.Anatomist('-b') self.image = image self.setTitle( title ) vlay = QtGui.QVBoxLayout( self ) vlay.setMargin( 0 ) font = QtGui.QFont() font.setPixelSize(12 * zoom) if palette_filter != []: hlay = QtGui.QHBoxLayout() vlay.addLayout( hlay ) hlay.addSpacerItem( QtGui.QSpacerItem( 20 , 20 , hPolicy = QtGui.QSizePolicy.Expanding ) ) self.palettecb = QtGui.QComboBox( self ) self.palettecb.setFont(font) if(zoom > 1.0): self.palettecb.setFixedWidth( 256 * zoom) else: self.palettecb.setFixedWidth( 256 * zoom * zoom ) self.palettecb.setToolTip( "Change the palette" ) hlay.addWidget( self.palettecb ) hlay.addSpacerItem( QtGui.QSpacerItem( 20 , 20 , hPolicy = QtGui.QSizePolicy.Expanding ) ) hlay = QtGui.QHBoxLayout() hlay.setMargin( 0 ) hlay.setSpacing( 0 ) vlay.addLayout( hlay ) if isinstance( self.real_min, float ) or isinstance( self.real_max, float ): self.minsb = QtGui.QDoubleSpinBox( self ) self.minsb.setFont(font) self.minsb.setSingleStep( 0.1 ) else: self.minsb = QtGui.QSpinBox( self ) self.minsb.setFixedWidth( 62 * zoom ) self.minsb.setRange( self.real_min, self.real_max ) self.minsb.setToolTip( "Change the palette minimum value" ) self.minsb.setFont(font) hlay.addWidget( self.minsb ) self.rangeslider = QRangeSlider() self.rangeslider.show() self.rangeslider.setFixedHeight(32 * zoom) self.rangeslider.setFixedWidth(256 * zoom * zoom) self.rangeslider.setMin(0) self.rangeslider.setMax(sliderPrecision) self.rangeslider.setRange(0, sliderPrecision) hlay.addWidget( self.rangeslider ) if isinstance( self.real_min, float ) or isinstance( self.real_max, float ): self.maxsb = QtGui.QDoubleSpinBox( self ) self.maxsb.setSingleStep( 0.1 ) else: self.maxsb = QtGui.QSpinBox( self ) self.maxsb.setFixedWidth( 62 * zoom ) self.maxsb.setRange( self.real_min, self.real_max ) self.maxsb.setToolTip( "Change the palette maximum value" ) self.maxsb.setFont(font) hlay.addWidget( self.maxsb ) self.paletteDic = {} self.loadPaletteList( palette_filter ) if(default is None): # set palette name using current object palette info try: default = ((image.palette()).refPalette()).name() except: default = None if palette_filter != []: try: self.palettecb.setCurrentIndex( self.paletteDic[ default ] ) except: self.palettecb.setCurrentIndex( 0 ) if palette_filter != []: self.connect( self.palettecb, QtCore.SIGNAL( " currentIndexChanged( const QString& ) " ), self.paletteNameChanged ) if isinstance( self.real_min, float ) or isinstance( self.real_max, float ): self.connect( self.minsb, QtCore.SIGNAL( " valueChanged( double ) " ), self.minSbChanged ) self.connect( self.maxsb, QtCore.SIGNAL( " valueChanged( double ) " ), self.maxSbChanged ) else: self.connect( self.minsb, QtCore.SIGNAL( " valueChanged( int ) " ), self.minSbChanged ) self.connect( self.maxsb, QtCore.SIGNAL( " valueChanged( int ) " ), self.maxSbChanged ) # set palette bound using current object palette info paletteStart = image.palette().min1() * (real_max - real_min) + real_min paletteStart = int(paletteStart) paletteEnd = image.palette().max1() * (real_max - real_min) + real_min paletteEnd = int(paletteEnd) self.rangeslider.setStart(int(image.palette().min1() * (real_max - real_min) + real_min)) self.rangeslider.setEnd(int(image.palette().max1() * (real_max - real_min) + real_min)) self.paletteMinMaxChanged() self.connect( self.rangeslider, QtCore.SIGNAL( "startValueChanged( int ) " ), self.paletteMinMaxChanged) self.connect( self.rangeslider, QtCore.SIGNAL( "endValueChanged( int ) " ), self.paletteMinMaxChanged) def loadPaletteList( self, palette_filter ): if palette_filter == []: return a = ana.Anatomist( '-b' ) for p in a.palettes().palettes(): name = p.name() if palette_filter and not name in palette_filter: continue self.paletteDic.update( { p.name() : self.palettecb.count() } ) self.palettecb.addItem( p.name() ) def paletteNameChanged( self, name): apal = self.image.getOrCreatePalette() self.image.setPalette( name,\ minVal=apal.min1(),\ maxVal=apal.max1() ) self.paletteMinMaxChanged() def paletteMinMaxChanged( self ): min = self.rangeslider.start() max = self.rangeslider.end() refpal = self.image.getOrCreatePalette().refPalette() self.image.setPalette( refpal.name(),\ minVal=min*(1.0/self.sliderPrecision),\ maxVal=max*(1.0/self.sliderPrecision) ) if not self.rangeslider._movingHandle: paletteinfo = self.updatePaletteLabel() tempfile = mkstemp()[1] paletteinfo[0].save(tempfile, "PNG") self.rangeslider.setStyleSheet("QRangeSlider * { border: 0px; padding: 0px; } \ QRangeSlider #Head { background: " + paletteinfo[1] + " repeat-x; } \ QRangeSlider #Span { background: url(" + tempfile + ") repeat-x; } \ QRangeSlider #Tail { background: "+ paletteinfo[2] + " repeat-x; } \ QRangeSlider > QSplitter::handle { background: #888888; } \ QRangeSlider > QSplitter::handle:vertical { height: 4px; } \ QRangeSlider > QSplitter::handle:pressed { background: #ACACAC; } ") os.remove(tempfile) real_min = ( ( self.real_max - self.real_min ) * min / self.sliderPrecision ) + self.real_min real_max = ( ( self.real_max - self.real_min ) * max / self.sliderPrecision ) + self.real_min self.minsb.blockSignals( True ) self.minsb.setValue( real_min ) self.minsb.blockSignals( False ) self.maxsb.blockSignals( True ) self.maxsb.setValue( real_max ) self.maxsb.blockSignals( False ) def updatePaletteLabel( self ): apal = self.image.getOrCreatePalette() min = apal.min1() max = apal.max1() refpal = apal.refPalette() dimx = refpal.dimX() dimy = refpal.dimY() if dimy < 32: dimy = 32 if dimx > 256: dimx = 256 elif dimx == 0: dimx = 1 if dimy > 256: dimy = 256 if (int(max - min) < 1): min = 0 max = 1 facx = float( refpal.dimX() ) / dimx; facy = float( refpal.dimY() ) / dimy; rgb = aims.AimsRGBA minx = dimx * min maxx = dimx * max range = int(maxx-minx) imbackground = QtGui.QImage( QtCore.QSize( range, int(dimy) ), 4 ) pmbackground = QtGui.QPixmap() for x in xrange( dimx ): rgb = refpal.value( int( facx * x ), 0) for y in xrange( dimy ): xpal = int(x*(maxx-minx)/dimx) if xpal >= range: xpal = range-1 imbackground.setPixel( xpal, y, QtGui.qRgb( rgb.red(), rgb.green(), rgb.blue() ) ) if cmp( QtCore.QT_VERSION_STR , '4.7' ) == -1: pmbackground = QtGui.QPixmap.fromImage( imbackground ) else: pmbackground.convertFromImage( imbackground ); rgb = refpal.value( 0, 0 ) valueinf = '#%02x%02x%02x' % (rgb.red(), rgb.green(), rgb.blue() ) rgb = refpal.value( int( facx * (dimx-1) ), int( facy * (dimy-1) ) ) valuesup = '#%02x%02x%02x' % (rgb.red(), rgb.green(), rgb.blue() ) return ( pmbackground, valueinf, valuesup ) def minSbChanged( self, value ): if value >= self.maxsb.value(): value = self.maxsb.value()-1 slider_value = self.sliderPrecision * ( value - self.real_min ) / ( self.real_max - self.real_min ) self.rangeslider.setStart( int( slider_value ) ) def maxSbChanged( self, value ): if value <= self.minsb.value(): value = self.minsb.value()+1 slider_value = self.sliderPrecision * ( value - self.real_min ) / ( self.real_max - self.real_min ) self.rangeslider.setEnd( int( slider_value ) )