""" CCP4ImageViewer.py: CCP4 GUI Project Copyright (C) 2009-2010 University of York This library is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License version 3, modified in accordance with the provisions of the license to address the requirements of UK law. You should have received a copy of the modified GNU Lesser General Public License along with this library. If not, copies may be downloaded from http://www.ccp4.ac.uk/ccp4license.php This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. """ """ Liz Potterton Jan 2010 - Create CCP4AbstractViewer """ ##@package CCP4ImageViewer (QtGui) Web browser widget for image files from PyQt4 import QtGui,QtCore import CCP4AbstractViewer from CCP4ErrorHandling import * #------------------------------------------------------------------- #------------------------------------------------------------------- #------------------------------------------------------------------- class CImageViewer(CCP4AbstractViewer.CAbstractViewer): #------------------------------------------------------------------- #------------------------------------------------------------------- #------------------------------------------------------------------- ERROR_CODES = {} ERROR_CODES.update(CCP4AbstractViewer.CAbstractViewer.ERROR_CODES) ERROR_CODES.update( { 101 : { 'severity' : SEVERITY_ERROR, 'description' : 'Image file apparently zero size' } } ) #------------------------------------------------------------------- def __init__(self,parent,fileName=''): #------------------------------------------------------------------- CCP4AbstractViewer.CAbstractViewer.__init__(self,parent) layout = QtGui.QVBoxLayout() self.label = QtGui.QLabel(self) layout.addWidget(self.label) ''' import mgWidgets self.scaleFrame = QtGui.QFrame(self) scale_layout = QtGui.QHBoxLayout() scale_layout.addWidget(QtGui.QLabel('Scale',self)) self.scaleWidget = mgWidgets.mgSlider(QtCore.Qt.Horizontal,self) self.scaleWidget.setRange(0.0,10.0) self.scaleWidget.setValue(1.0) self.connect(self.scaleWidget,QtCore.SIGNAL('valueChanged(double)'),self.scale) scale_layout.addWidget(self.scaleWidget) fit_to_frame = QtGui.QPushButton('Fit to frame',self) self.connect(fit_to_frame,QtCore.SIGNAL('released()'),self.fitToWindow) scale_layout.addWidget(fit_to_frame) close = QtGui.QPushButton('Close',self) self.connect(close,QtCore.SIGNAL('released()'),self.closeScale) scale_layout.addWidget(close) self.scaleFrame.setLayout(scale_layout) layout.addWidget(self.scaleFrame) self.scaleFrame.hide() ''' self.setLayout(layout) self.fileName = None self.pixmap = QtGui.QPixmap() if fileName: self.open(fileName) self.isZoomed = 0 #------------------------------------------------------------------- def fitToWindow(self): #------------------------------------------------------------------- #print 'mgImageViewerfitToWindow' #if self.pixmap.width()>self.width() or self.pixmap.height()>self.height(): #self.isZoomed = 1 - self.isZoomed if not self.isZoomed: self.label.setPixmap(self.pixmap.scaled(self.size(),QtCore.Qt.KeepAspectRatio,QtCore.Qt.SmoothTransformation)) else: self.label.setPixmap(self.pixmap) #------------------------------------------------------------------- def mousePressEvent(self,event): #------------------------------------------------------------------- if self.filename != '' and self.pixmap.width()>0 and self.pixmap.height()>0: try: drag = QtGui.QDrag(self) mimeData = QtCore.QMimeData() mimeData.setText(self.filename) #mimeData.setImageData(QtGui.QImage(self.filename)) mimeData.setUrls([QtCore.QUrl.fromLocalFile(self.filename)]) drag.setMimeData(mimeData) drag.setPixmap(self.pixmap.scaledToHeight(150)) drag.start() except: print "Drag and drop failed" #------------------------------------------------------------------- def open(self,fileName): #------------------------------------------------------------------- import os try: self.pixmap = QtGui.QPixmap(fileName) except: raise CException(self.__class__,1,fileName) #print "mgImageViewer pixmap",self.pixmap,self.pixmap.width(),self.pixmap.height() w = int(self.pixmap.width()) if w<=0: raise CException(self.__class__,101,fileName) self.label.setPixmap(self.pixmap) CCP4AbstractViewer.CAbstractViewer.open(self,fileName) self.label.show() #self.setWidget(self.label) return 0 #------------------------------------------------------------------- def mgSize(self): #------------------------------------------------------------------- return self.pixmap.size() #------------------------------------------------------------------- def Print(self,painter): #------------------------------------------------------------------- painter.drawPixmap(0,0,self.pixmap) #------------------------------------------------------------------- def Save(self,fileName): #------------------------------------------------------------------- pass #------------------------------------------------------------------- def isPrintable(self): #------------------------------------------------------------------- return 1 #------------------------------------------------------------------- def isSaveable(self): #------------------------------------------------------------------- return 1 #------------------------------------------------------------------- def isScaleable(self): #------------------------------------------------------------------- return 1 #------------------------------------------------------------------- def openScale(self): #------------------------------------------------------------------- self.scaleFrame.show() #------------------------------------------------------------------- def closeScale(self): #------------------------------------------------------------------- self.scaleFrame.hide() #------------------------------------------------------------------- def scale(self,value): #------------------------------------------------------------------- print 'ImageViewer.scale',value if not self.pixmap or not self.fileName: return self.label.setPixmap(self.pixmap.scaled(self.pixmap.width()*value,self.pixmap.height()*value,QtCore.Qt.KeepAspectRatio,QtCore.Qt.SmoothTransformation)) #------------------------------------------------------------------- #------------------------------------------------------------------- #------------------------------------------------------------------- class CAnimationViewer(CCP4AbstractViewer.CAbstractViewer): #------------------------------------------------------------------- #------------------------------------------------------------------- #------------------------------------------------------------------- # Use QMovie to display gif or png animations # Beware does NOT display mp4 etc. movies ERROR_CODES = {} ERROR_CODES.update(CCP4AbstractViewer.CAbstractViewer.ERROR_CODES) ERROR_CODES.update( { 101 : { 'severity' : SEVERITY_ERROR, 'description' : 'Apparently invalid movie file' } } ) #------------------------------------------------------------------- def __init__(self,parent,fileName=''): #------------------------------------------------------------------- CCP4AbstractViewer.CAbstractViewer.__init__(self,parent) self.fileName='' layout = QtGui.QVBoxLayout() self.label = QtGui.QLabel(self) layout.addWidget(self.label) self.setLayout(layout) if fileName: self.open(fileName) #------------------------------------------------------------------- def open(self,fileName): #------------------------------------------------------------------- import os try: self.movie = QtGui.QMovie(fileName,'',self) except: raise CException(self.__class__,1,fileName) if not self.movie.isValid(): raise CException(self.__class__,101,filenName) self.fileName = os.path.abspath(fileName) self.setObjectName(os.path.split(self.fileName)[-1]) self.label.setMovie(self.movie) self.movie.start() return 0 #------------------------------------------------------------------- def mgSize(self): #------------------------------------------------------------------- return self.movie.currentPixmap().size()