PIL und Tkinter

Ein Beispiel einer Tkinter Oberfläche, die zwei Bilder anzeigt. Es werden ein paar (simple) Bildtransformationen demonstriert.

<per> import sys from PIL import Image, ImageTk from Tkinter import Tk, Canvas, Button,Frame import Pmw import ImageEnhance

root = Tk() root.title("Test")

im = Image.open("desktop_07_m_1280x960.bmp").convert("RGB") im2= Image.open("desktop_07_m_1280x960.bmp").convert("RGB") imview=im imview2=im2

actualpercent_orig=1.0 actualpercent_modif=1.0

init=0

photo = ImageTk.PhotoImage(imview) photo2 = ImageTk.PhotoImage(imview2)

pwmain = Pmw.PanedWidget(root,orient='vertical') panephoto=pwmain.add("top",min = .1, size = .95) panecontrol=pwmain.add("bottom",min = .05, size = .05) pwmain.pack(fill = 'both', expand = 1)

pwphoto = Pmw.PanedWidget(panephoto,orient='horizontal') pane1=pwphoto.add("left",min = .1, size = .5) pane2=pwphoto.add("right",min = .1, size = .5) pwphoto.pack(fill = 'both', expand = 1) frameleft = Frame(pane1, background = 'grey90') frameleft.pack(fill = 'both', expand = 1) frameright = Frame(pane2, background = 'grey90') frameright.pack(fill = 'both', expand = 1)

menuBarleft = Pmw.MenuBar(frameleft, hull_relief = 'raised', hull_borderwidth = 1) menuBarleft.pack(fill = 'x') menuBarleft.addmenu('View', )

menuBarright = Pmw.MenuBar(frameright, hull_relief = 'raised', hull_borderwidth = 1) menuBarright.pack(fill = 'x') menuBarright.addmenu('View', )

canvas=Pmw.ScrolledCanvas(frameleft,borderframe=1,labelpos='n',

                         label_text="Original",
                         hscrollmode='dynamic',vscrollmode='dynamic')

image1=canvas.create_image(0, 0, image=photo, anchor="nw") canvas.pack(fill = 'both', expand = 1) canvas.resizescrollregion()

canvas2=Pmw.ScrolledCanvas(frameright,borderframe=1,labelpos='n',

                         label_text="Modified",
                          hscrollmode='dynamic',vscrollmode='dynamic')

image2=canvas2.create_image(0, 0, image=photo2, anchor="nw") canvas2.pack(fill = 'both', expand = 1) canvas2.resizescrollregion()

def updateright():

   global imview2,im2,photo2,canvas2,image2,actualpercent_modif,init
   imview2=im2.resize((int(im2.size[0]*actualpercent_modif),
                        int(im2.size[1]*actualpercent_modif)))
   photo2 = ImageTk.PhotoImage(imview2)
   canvas2.delete(image2)
   image2=canvas2.create_image(0, 0, image=photo2, anchor="nw")
   canvas2.resizescrollregion()
   pass

def updateleft():

   global imview,im,photo,canvas,image1,actualpercent_orig
   imview =im.resize((int(im.size[0]*actualpercent_orig),
                        int(im.size[1]*actualpercent_orig)))
   photo = ImageTk.PhotoImage(imview)
   canvas.delete(image1)
   image1=canvas.create_image(0, 0, image=photo, anchor="nw")
   canvas.resizescrollregion()
   pass

class ViewClass:

   def __init__(self, which, percent):
       self.which = which
       self.percent=percent    
   def __call__(self):
       global actualpercent_modif,actualpercent_orig,init
       if init==1:
           if self.which=='right':
               actualpercent_modif=self.percent/100.
               updateright()
               pass
           if self.which=='left':
               actualpercent_orig=self.percent/100.
               updateleft()
               pass
           pass
       pass
   pass

def resize():

   global im2
   im2=im2.resize((500,500),Image.ANTIALIAS)
   updateright()
   

def rotate():

   global im2
   im2=im2.rotate(45)
   updateright()    

for i in range(10):

 menuBarleft.addmenuitem('View', 'command', ,
                     command = ViewClass('left',(i+1)*10),
                     label = str((i+1)*10)+'%')
                         
 menuBarright.addmenuitem('View', 'command', ,
                     command = ViewClass('right',(i+1)*10),
                     label = str((i+1)*10)+'%')

init=1

Button(panecontrol, text="resize", command=resize).grid(row=0,column=0) Button(panecontrol, text="rotate", command=rotate).grid(row=0,column=1)

Button(panecontrol, text="done", command=root.quit).grid(row=1,column=0)

root.mainloop()

</per>