def createImage(self, imageUrl):
image = Image(imageUrl)
image.setStyleName("ks-images-Image")
p = VerticalPanel()
p.setHorizontalAlignment(HasAlignment.ALIGN_CENTER)
p.setVerticalAlignment(HasAlignment.ALIGN_MIDDLE)
p.add(image)
return p
class Images(Sink):
def __init__(self):
Sink.__init__(self)
self.curImage=0
self.image=Image()
self.loadingImage = Image(self.baseURL() + "images/blanksearching.gif")
self.nextButton = Image(self.baseURL() + "rembrandt/forward.gif")
self.prevButton = Image(self.baseURL() + "rembrandt/back.gif")
self.sImages=["rembrandt/JohannesElison.jpg", "rembrandt/LaMarcheNocturne.jpg", "rembrandt/SelfPortrait1628.jpg", "rembrandt/SelfPortrait1640.jpg", "rembrandt/TheArtistInHisStudio.jpg", "rembrandt/TheReturnOfTheProdigalSon.jpg"]
for i in range(len(self.sImages)):
self.sImages[i]=self.baseURL() + self.sImages[i]
self.image.addLoadListener(self)
self.prevButton.addClickListener(self)
self.nextButton.addClickListener(self)
topPanel = DockPanel()
topPanel.setVerticalAlignment(HasAlignment.ALIGN_MIDDLE)
topPanel.add(self.prevButton, DockPanel.WEST)
topPanel.add(self.nextButton, DockPanel.EAST)
topPanel.add(self.loadingImage, DockPanel.CENTER)
panel = VerticalPanel()
panel.setHorizontalAlignment(HasAlignment.ALIGN_CENTER)
panel.add(HTML("<h2>A Bit of Rembrandt</h2>", True))
panel.add(topPanel)
panel.add(self.image)
panel.setWidth("100%")
self.initWidget(panel)
self.image.setStyleName("ks-images-Image")
self.nextButton.setStyleName("ks-images-Button")
self.prevButton.setStyleName("ks-images-Button")
self.loadImage(0)
def onClick(self, sender):
if sender==self.prevButton:
self.loadImage(self.curImage - 1)
elif sender == self.nextButton:
self.loadImage(self.curImage + 1)
def onError(self, sender):
pass
def onLoad(self, sender):
self.loadingImage.setUrl(self.baseURL() + "images/blanksearching.gif")
def loadImage(self, index):
if index < 0:
index = len(self.sImages) - 1
elif index > len(self.sImages) - 1:
index = 0
self.curImage = index
self.loadingImage.setUrl(self.baseURL() + "images/searching.gif")
self.image.setUrl(self.sImages[self.curImage])
