PageRenderTime 77ms CodeModel.GetById 55ms RepoModel.GetById 0ms app.codeStats 0ms

/examples/kitchensink/Images.py

http://pyjamas.googlecode.com/
Python | 64 lines | 51 code | 13 blank | 0 comment | 5 complexity | 34e709b31552520ff9cba372a0222500 MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0 
    

  1. from Sink import Sink, SinkInfo
    2. 

  2. from ui import DockPanel, Image, VerticalPanel, HasAlignment, HTML
    3. 

  3. 

  4. class Images(Sink):
    5. 

  5.     def __init__(self):
    6. 

  6.         self.curImage=0
    7. 

  7.         self.image=Image()
    8. 

  8.         self.loadingImage = Image(self.baseURL() + "images/blanksearching.gif")
    9. 

  9.         self.nextButton = Image(self.baseURL() + "rembrandt/forward.gif")
    10. 

  10.         self.prevButton = Image(self.baseURL() + "rembrandt/back.gif")
    11. 

  11.         self.sImages=["rembrandt/JohannesElison.jpg", "rembrandt/LaMarcheNocturne.jpg", "rembrandt/SelfPortrait1628.jpg", "rembrandt/SelfPortrait1640.jpg", "rembrandt/TheArtistInHisStudio.jpg", "rembrandt/TheReturnOfTheProdigalSon.jpg"]
    12. 

  12. 

  13.         for i in range(len(self.sImages)):
    14. 

  14.             self.sImages[i]=self.baseURL() + self.sImages[i]
    15. 

  15.         
    16. 

  16.         self.image.addLoadListener(self)
    17. 

  17.         self.prevButton.addClickListener(self)
    18. 

  18.         self.nextButton.addClickListener(self)
    19. 

  19.         
    20. 

  20.         topPanel = DockPanel()
    21. 

  21.         topPanel.setVerticalAlignment(HasAlignment.ALIGN_MIDDLE)
    22. 

  22.         topPanel.add(self.prevButton, DockPanel.WEST)
    23. 

  23.         topPanel.add(self.nextButton, DockPanel.EAST)
    24. 

  24.         topPanel.add(self.loadingImage, DockPanel.CENTER)
    25. 

  25.         
    26. 

  26.         panel = VerticalPanel()
    27. 

  27.         panel.setHorizontalAlignment(HasAlignment.ALIGN_CENTER)
    28. 

  28.         panel.add(HTML("<h2>A Bit of Rembrandt</h2>", True))
    29. 

  29.         panel.add(topPanel)
    30. 

  30.         panel.add(self.image)
    31. 

  31.         
    32. 

  32.         panel.setWidth("100%")
    33. 

  33.         self.initWidget(panel)
    34. 

  34.         self.image.setStyleName("ks-images-Image")
    35. 

  35.         self.nextButton.setStyleName("ks-images-Button")
    36. 

  36.         self.prevButton.setStyleName("ks-images-Button")
    37. 

  37.         
    38. 

  38.         self.loadImage(0)           
    39. 

  39. 

  40.     def onClick(self, sender):
    41. 

  41.         if sender==self.prevButton:
    42. 

  42.             self.loadImage(self.curImage - 1)
    43. 

  43.         elif sender == self.nextButton:
    44. 

  44.             self.loadImage(self.curImage + 1)
    45. 

  45. 

  46.     def onError(self, sender):
    47. 

  47.         pass
    48. 

  48. 

  49.     def onLoad(self, sender):
    50. 

  50.         self.loadingImage.setUrl(self.baseURL() + "images/blanksearching.gif")
    51. 

  51. 

  52.     def loadImage(self, index):
    53. 

  53.         if index < 0:
    54. 

  54.             index = len(self.sImages) - 1
    55. 

  55.         elif index > len(self.sImages) - 1:
    56. 

  56.             index = 0
    57. 

  57. 

  58.         self.curImage = index
    59. 

  59.         self.loadingImage.setUrl(self.baseURL() + "images/searching.gif")
    60. 

  60.         self.image.setUrl(self.sImages[self.curImage])
    61. 

  61. 

  62. def init():
    63. 

  63.     text="This page demonstrates GWT's support for images.  Notice in particular how it uses the image's onLoad event to display a 'wait spinner' between the back and forward buttons."
    64. 

  64.     return SinkInfo("Images", text, Images)
    65. 

  65.