1. windwiny
  2. wxPython

Source

wxPython / wx / lib / imagebrowser.py

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
#----------------------------------------------------------------------------
# Name:         BrowseImage.py
# Purpose:      Display and Select Image Files
#
# Original Author:       Lorne White
#
# Version:      2.0
# Date:         June 16, 2007
# Licence:      wxWindows license
#----------------------------------------------------------------------------
# 2.0 Release - Bill Baxter (wbaxter@gmail.com)
# Date:         June 16, 2007
# o Changed to use sizers instead of fixed placement.
# o Made dialog resizeable
# o Added a splitter between file list and view pane
# o Made directory path editable
# o Added an "up" button" to go to the parent dir
# o Changed to show directories in file list
# o Don't select images on double click any more
# o Added a 'broken image' display for files that wx fails to identify
# o Redesigned appearance -- using bitmap buttons now, and rearranged things
# o Fixed display of masked gifs
# o Fixed zooming logic to show shrunken images at correct aspect ratio
# o Added different background modes for preview (white/grey/dark/checkered)
# o Added framing modes for preview (no frame/box frame/tinted border)
# 
#----------------------------------------------------------------------------
#
# 12/08/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o Updated for wx namespace
# o Corrected a nasty bug or two - see comments below.
# o There was a duplicate ImageView.DrawImage() method. Que?
# 
#----------------------------------------------------------------------------
# 1.0 Release - Lorne White
# Date:         January 29, 2002
# Create list of all available image file types
# View "All Image" File Types as default filter
# Sort the file list
# Use newer "re" function for patterns
#

#---------------------------------------------------------------------------

import  os
import  sys
import  wx

#---------------------------------------------------------------------------

BAD_IMAGE = -1
ID_WHITE_BG = wx.NewId()
ID_BLACK_BG = wx.NewId()
ID_GREY_BG = wx.NewId()
ID_CHECK_BG = wx.NewId()
ID_NO_FRAME = wx.NewId()
ID_BOX_FRAME = wx.NewId()
ID_CROP_FRAME = wx.NewId()

def ConvertBMP(file_nm):
    if file_nm is None:
        return None

    fl_fld = os.path.splitext(file_nm)
    ext = fl_fld[1]
    ext = ext[1:].lower()

    # Don't try to create it directly because wx throws up
    # an annoying messasge dialog if the type isn't supported.
    if wx.Image.CanRead(file_nm):
        image = wx.Image(file_nm, wx.BITMAP_TYPE_ANY)
        return image

    # BAD_IMAGE means a bad image, None just means no image (i.e. directory)
    return BAD_IMAGE


def GetCheckeredBitmap(blocksize=8,ntiles=4,rgb0='\xFF', rgb1='\xCC'):
    """Creates a square RGB checkered bitmap using the two specified colors.

    Inputs:
    - blocksize:  the number of pixels in each solid color square
    - ntiles:  the number of tiles along width and height.  Each tile is 2x2 blocks.
    - rbg0,rgb1:  the first and second colors, as 3-byte strings.
                  If only 1 byte is provided, it is treated as a grey value.

    The bitmap returned will have width = height = blocksize*ntiles*2
    """
    size = blocksize*ntiles*2

    if len(rgb0)==1:
        rgb0 = rgb0 * 3
    if len(rgb1)==1:
        rgb1 = rgb1 * 3

    strip0 = (rgb0*blocksize + rgb1*blocksize)*(ntiles*blocksize)
    strip1 = (rgb1*blocksize + rgb0*blocksize)*(ntiles*blocksize)
    band = strip0 + strip1
    data = band * ntiles
    return wx.BitmapFromBuffer(size, size, data)

def GetNamedBitmap(name):
    return IMG_CATALOG[name].getBitmap()


class ImageView(wx.Window):
    def __init__(self, parent, id=-1, pos=wx.DefaultPosition, size=wx.DefaultSize, 
                 style=wx.BORDER_SUNKEN
                 ):
        wx.Window.__init__(self, parent, id, pos, size, style=style)
        
        self.image = None

        self.check_bmp = None
        self.check_dim_bmp = None

        # dark_bg is the brush/bitmap to use for painting in the whole background
        # lite_bg is the brush/bitmap/pen to use for painting the image rectangle
        self.dark_bg = None
        self.lite_bg = None

        self.border_mode = ID_CROP_FRAME
        self.SetBackgroundMode( ID_WHITE_BG )
        self.SetBorderMode( ID_NO_FRAME )

        # Changed API of wx uses tuples for size and pos now.
        self.Bind(wx.EVT_PAINT, self.OnPaint)
        self.Bind(wx.EVT_ERASE_BACKGROUND, self.OnEraseBackground)
        self.Bind(wx.EVT_SIZE, self.OnSize)


    def SetValue(self, file_nm):    # display the selected file in the panel
        image = ConvertBMP(file_nm)
        self.image = image
        self.Refresh()
    
    def SetBackgroundMode(self, mode):
        self.bg_mode = mode
        self._updateBGInfo()

    def _updateBGInfo(self):
        bg = self.bg_mode
        border = self.border_mode

        self.dark_bg = None
        self.lite_bg = None

        if border == ID_BOX_FRAME:
            self.lite_bg = wx.BLACK_PEN

        if bg == ID_WHITE_BG:
            if border == ID_CROP_FRAME:
                self.SetBackgroundColour('LIGHT GREY')
                self.lite_bg = wx.WHITE_BRUSH
            else:
                self.SetBackgroundColour('WHITE')

        elif bg == ID_GREY_BG:
            if border == ID_CROP_FRAME:
                self.SetBackgroundColour('GREY')
                self.lite_bg = wx.LIGHT_GREY_BRUSH
            else:
                self.SetBackgroundColour('LIGHT GREY')

        elif bg == ID_BLACK_BG:
            if border == ID_BOX_FRAME:
                self.lite_bg = wx.WHITE_PEN
            if border == ID_CROP_FRAME:
                self.SetBackgroundColour('GREY')
                self.lite_bg = wx.BLACK_BRUSH
            else:
                self.SetBackgroundColour('BLACK')

        else:
            if self.check_bmp is None:
                self.check_bmp = GetCheckeredBitmap()
                self.check_dim_bmp = GetCheckeredBitmap(rgb0='\x7F', rgb1='\x66')
            if border == ID_CROP_FRAME:
                self.dark_bg = self.check_dim_bmp
                self.lite_bg = self.check_bmp
            else:
                self.dark_bg = self.check_bmp

        self.Refresh()

    def SetBorderMode(self, mode):
        self.border_mode = mode
        self._updateBGInfo()

    def OnSize(self, event):
        event.Skip()
        self.Refresh()

    def OnPaint(self, event):
        dc = wx.PaintDC(self)
        self.DrawImage(dc)

    def OnEraseBackground(self, evt):
        if self.bg_mode != ID_CHECK_BG:
            evt.Skip()
            return
        dc = evt.GetDC()
        if dc:
            self.PaintBackground(dc, self.dark_bg)

    def PaintBackground(self, dc, painter, rect=None):
        if painter is None:
            return
        if rect is None:
            pos = self.GetPosition()
            sz = self.GetSize()
        else:
            pos = rect.Position
            sz = rect.Size

        if type(painter)==wx.Brush:
            dc.SetPen(wx.TRANSPARENT_PEN)
            dc.SetBrush(painter)
            dc.DrawRectangle(pos.x,pos.y,sz.width,sz.height)
        elif type(painter)==wx.Pen:
            dc.SetPen(painter)
            dc.SetBrush(wx.TRANSPARENT_BRUSH)
            dc.DrawRectangle(pos.x-1,pos.y-1,sz.width+2,sz.height+2)
        else:
            self.TileBackground(dc, painter, pos.x,pos.y,sz.width,sz.height)
        

    def TileBackground(self, dc, bmp, x,y,w,h):
        """Tile bmp into the specified rectangle"""
        bw = bmp.GetWidth()
        bh = bmp.GetHeight()

        dc.SetClippingRegion(x,y,w,h)

        # adjust so 0,0 so we always match with a tiling starting at 0,0
        dx = x % bw
        x = x - dx
        w = w + dx

        dy = y % bh
        y = y - dy
        h = h + dy

        tx = x
        x2 = x+w
        y2 = y+h

        while tx < x2:
            ty = y
            while ty < y2:
                dc.DrawBitmap(bmp, tx, ty)
                ty += bh
            tx += bw

    def DrawImage(self, dc):

        if not hasattr(self,'image') or self.image is None:
            return

        wwidth,wheight = self.GetSize() 
        image = self.image
        bmp = None
        if image != BAD_IMAGE and image.IsOk():
            iwidth = image.GetWidth()   # dimensions of image file
            iheight = image.GetHeight()
        else:
            bmp = wx.ArtProvider.GetBitmap(wx.ART_MISSING_IMAGE, wx.ART_MESSAGE_BOX, (64,64))
            iwidth = bmp.GetWidth()
            iheight = bmp.GetHeight()

        # squeeze iwidth x iheight image into window, preserving aspect ratio

        xfactor = float(wwidth) / iwidth
        yfactor = float(wheight) / iheight

        if xfactor < 1.0 and xfactor < yfactor:
            scale = xfactor
        elif yfactor < 1.0 and yfactor < xfactor:
            scale = yfactor
        else:
            scale = 1.0

        owidth = int(scale*iwidth)
        oheight = int(scale*iheight)

        diffx = (wwidth - owidth)/2   # center calc
        diffy = (wheight - oheight)/2   # center calc

        if not bmp:
            if owidth!=iwidth or oheight!=iheight:
                sc_image = sc_image = image.Scale(owidth,oheight)
            else:
                sc_image = image
            bmp = sc_image.ConvertToBitmap()

        if image != BAD_IMAGE and image.IsOk():
            self.PaintBackground(dc, self.lite_bg, wx.Rect(diffx,diffy,owidth,oheight))

        dc.DrawBitmap(bmp, diffx, diffy, useMask=True)        # draw the image to window


class ImagePanel(wx.Panel):
    def __init__(self, parent, id=-1, pos=wx.DefaultPosition, size=wx.DefaultSize, 
                 style=wx.NO_BORDER
                 ):
        wx.Panel.__init__(self, parent, id, pos, size, style=style)

        vbox = wx.BoxSizer(wx.VERTICAL)
        self.SetSizer(vbox)

        self.view = ImageView(self)
        vbox.Add(self.view, 1, wx.GROW|wx.ALL, 0)

        hbox_ctrls = wx.BoxSizer(wx.HORIZONTAL)
        vbox.Add(hbox_ctrls, 0, wx.ALIGN_RIGHT|wx.TOP, 4)

        bmp = GetNamedBitmap('White')
        btn = wx.BitmapButton(self, ID_WHITE_BG, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetImgBackground, btn)
        btn.SetToolTipString("Set background to white")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)

        bmp = GetNamedBitmap('Grey')
        btn = wx.BitmapButton(self, ID_GREY_BG, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetImgBackground, btn)
        btn.SetToolTipString("Set background to grey")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)

        bmp = GetNamedBitmap('Black')
        btn = wx.BitmapButton(self, ID_BLACK_BG, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetImgBackground, btn)
        btn.SetToolTipString("Set background to black")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)

        bmp = GetNamedBitmap('Checked')
        btn = wx.BitmapButton(self, ID_CHECK_BG, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetImgBackground, btn)
        btn.SetToolTipString("Set background to chekered pattern")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)


        hbox_ctrls.AddSpacer(7)

        bmp = GetNamedBitmap('NoFrame')
        btn = wx.BitmapButton(self, ID_NO_FRAME, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetBorderMode, btn)
        btn.SetToolTipString("No framing around image")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)
        
        bmp = GetNamedBitmap('BoxFrame')
        btn = wx.BitmapButton(self, ID_BOX_FRAME, bmp, style=wx.BU_EXACTFIT)
        self.Bind(wx.EVT_BUTTON, self.OnSetBorderMode, btn)
        btn.SetToolTipString("Frame image with a box")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)

        bmp = GetNamedBitmap('CropFrame')
        btn = wx.BitmapButton(self, ID_CROP_FRAME, bmp, style=wx.BU_EXACTFIT|wx.BORDER_SIMPLE)
        self.Bind(wx.EVT_BUTTON, self.OnSetBorderMode, btn)
        btn.SetToolTipString("Frame image with a dimmed background")
        hbox_ctrls.Add(btn, 0, wx.ALIGN_LEFT|wx.LEFT, 4)


    def SetValue(self, file_nm):    # display the selected file in the panel
        self.view.SetValue(file_nm)

    def SetBackgroundMode(self, mode):
        self.view.SetBackgroundMode(mode)

    def SetBorderMode(self, mode):
        self.view.SetBorderMode(mode)

    def OnSetImgBackground(self, event):
        mode = event.GetId()
        self.SetBackgroundMode(mode)

    def OnSetBorderMode(self, event):
        mode = event.GetId()
        self.SetBorderMode(mode)



class ImageDialog(wx.Dialog):
    def __init__(self, parent, set_dir = None):
        wx.Dialog.__init__(self, parent, -1, "Image Browser", wx.DefaultPosition, (400, 400),style=wx.DEFAULT_DIALOG_STYLE|wx.RESIZE_BORDER)

        self.set_dir = os.getcwd()
        self.set_file = None

        if set_dir != None:
            if os.path.exists(set_dir):     # set to working directory if nothing set
                self.set_dir = set_dir

        vbox_top = wx.BoxSizer(wx.VERTICAL)
        self.SetSizer(vbox_top)

        hbox_loc = wx.BoxSizer(wx.HORIZONTAL)
        vbox_top.Add(hbox_loc, 0, wx.GROW|wx.ALIGN_LEFT|wx.ALL, 0)

        loc_label = wx.StaticText( self, -1, "Folder:")
        hbox_loc.Add(loc_label, 0, wx.ALIGN_LEFT|wx.ALIGN_CENTER_VERTICAL|wx.ALL|wx.ADJUST_MINSIZE, 5)

        self.dir = wx.TextCtrl( self, -1, self.set_dir, style=wx.TE_RICH|wx.TE_PROCESS_ENTER)
        self.Bind(wx.EVT_TEXT_ENTER, self.OnDirectoryTextSet, self.dir)
        hbox_loc.Add(self.dir, 1, wx.GROW|wx.ALIGN_LEFT|wx.ALL, 5)

        up_bmp = wx.ArtProvider.GetBitmap(wx.ART_GO_DIR_UP, wx.ART_BUTTON, (16,16))
        btn = wx.BitmapButton(self, -1, up_bmp)
        btn.SetHelpText("Up one level")
        btn.SetToolTipString("Up one level")
        self.Bind(wx.EVT_BUTTON, self.OnUpDirectory, btn)
        hbox_loc.Add(btn, 0, wx.ALIGN_CENTER_VERTICAL|wx.RIGHT, 2)

        folder_bmp = wx.ArtProvider.GetBitmap(wx.ART_FOLDER_OPEN, wx.ART_BUTTON, (16,16))
        btn = wx.BitmapButton(self, -1, folder_bmp)
        btn.SetHelpText("Browse for a &folder...")
        btn.SetToolTipString("Browse for a folder...")
        self.Bind(wx.EVT_BUTTON, self.OnChooseDirectory, btn)
        hbox_loc.Add(btn, 0, wx.ALIGN_CENTER_VERTICAL|wx.RIGHT, 5)

        hbox_nav = wx.BoxSizer(wx.HORIZONTAL)
        vbox_top.Add(hbox_nav, 0, wx.ALIGN_LEFT|wx.ALL, 0)


        label = wx.StaticText( self, -1, "Files of type:")
        hbox_nav.Add(label, 0, wx.ALIGN_CENTER_VERTICAL|wx.LEFT, 5)

        self.fl_ext = '*.bmp'   # initial setting for file filtering
        self.GetFiles()     # get the file list

        self.fl_ext_types = (
            # display, filter
            ("All supported formats", "All"),
            ("BMP (*.bmp)", "*.bmp"),
            ("GIF (*.gif)", "*.gif"),
            ("PNG (*.png)", "*.png"),
            ("JPEG (*.jpg)", "*.jpg"),
            ("ICO (*.ico)", "*.ico"),
            ("PNM (*.pnm)", "*.pnm"),
            ("PCX (*.pcx)", "*.pcx"),
            ("TIFF (*.tif)", "*.tif"),
            ("All Files", "*.*"),
            )
        self.set_type,self.fl_ext = self.fl_ext_types[0]  # initial file filter setting
        self.fl_types = [ x[0] for x in self.fl_ext_types ]
        self.sel_type = wx.ComboBox( self, -1, self.set_type,
                                     wx.DefaultPosition, wx.DefaultSize, self.fl_types, 
                                     wx.CB_DROPDOWN )
        # after this we don't care about the order any more
        self.fl_ext_types = dict(self.fl_ext_types)

        self.Bind(wx.EVT_COMBOBOX, self.OnSetType, self.sel_type)
        hbox_nav.Add(self.sel_type, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALL, 5)

        splitter = wx.SplitterWindow( self, -1, wx.DefaultPosition, wx.Size(100, 100), 0 )
        splitter.SetMinimumPaneSize(100)

        split_left = wx.Panel( splitter, -1, wx.DefaultPosition, wx.DefaultSize, 
                               wx.NO_BORDER|wx.TAB_TRAVERSAL )
        vbox_left = wx.BoxSizer(wx.VERTICAL)
        split_left.SetSizer(vbox_left)


        self.tb = tb = wx.ListBox( split_left, -1, wx.DefaultPosition, wx.DefaultSize,
                                   self.fl_list, wx.LB_SINGLE )
        self.Bind(wx.EVT_LISTBOX, self.OnListClick, tb)
        self.Bind(wx.EVT_LISTBOX_DCLICK, self.OnListDClick, tb)
        vbox_left.Add(self.tb, 1, wx.GROW|wx.ALL, 0)

        width, height = self.tb.GetSize()

        split_right = wx.Panel( splitter, -1, wx.DefaultPosition, wx.DefaultSize,
                                wx.NO_BORDER|wx.TAB_TRAVERSAL )
        vbox_right = wx.BoxSizer(wx.VERTICAL)
        split_right.SetSizer(vbox_right)

        self.image_view = ImagePanel( split_right )
        vbox_right.Add(self.image_view, 1, wx.GROW|wx.ALL, 0)

        splitter.SplitVertically(split_left, split_right, 150)
        vbox_top.Add(splitter, 1, wx.GROW|wx.ALL, 5)

        hbox_btns = wx.BoxSizer(wx.HORIZONTAL)
        vbox_top.Add(hbox_btns, 0, wx.ALIGN_RIGHT|wx.ALL, 5)

        ok_btn = wx.Button( self, wx.ID_OPEN, "", wx.DefaultPosition, wx.DefaultSize, 0 )
        self.Bind(wx.EVT_BUTTON, self.OnOk, ok_btn)
        #ok_btn.SetDefault()
        hbox_btns.Add(ok_btn, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALL, 5)

        cancel_btn = wx.Button( self, wx.ID_CANCEL, "", 
                                wx.DefaultPosition, wx.DefaultSize, 0 )
        hbox_btns.Add(cancel_btn, 0, wx.ALIGN_CENTER_VERTICAL|wx.ALL, 5)

        self.ResetFiles()

    def ChangeFileTypes(self, ft_tuple):
        # Change list of file types to be supported
        self.fl_ext_types = ft_tuple
        self.set_type, self.fl_ext = self.fl_ext_types[0]  # initial file filter setting
        self.fl_types = [ x[0] for x in self.fl_ext_types ]
        self.sel_type.Clear()
        self.sel_type.AppendItems(self.fl_types)
        self.sel_type.SetSelection(0)
        self.fl_ext_types = dict(self.fl_ext_types)

    def GetFiles(self):     # get the file list using directory and extension values
        if self.fl_ext == "All":
            all_files = []

            if self.fl_types[-1] == 'All Files':
                allTypes = self.fl_types[-1:]
            else:
                allTypes = self.fl_types[1:]
            for ftypes in allTypes:    # get list of all
                filter = self.fl_ext_types[ftypes]
                #print "filter = ", filter
                self.fl_val = FindFiles(self, self.set_dir, filter)
                all_files = all_files + self.fl_val.files   # add to list of files

            self.fl_list = all_files
        else:
            self.fl_val = FindFiles(self, self.set_dir, self.fl_ext)
            self.fl_list = self.fl_val.files


        self.fl_list.sort()     # sort the file list
        # prepend the directories
        self.fl_ndirs = len(self.fl_val.dirs)
        self.fl_list = sorted(self.fl_val.dirs) + self.fl_list

    def DisplayDir(self):       # display the working directory
        if self.dir:
            ipt = self.dir.GetInsertionPoint()
            self.dir.SetValue(self.set_dir)
            self.dir.SetInsertionPoint(ipt)

    def OnSetType(self, event):
        val = event.GetString()      # get file type value
        self.fl_ext = self.fl_ext_types[val]
        self.ResetFiles()

    def OnListDClick(self, event):
        self.OnOk('dclick')

    def OnListClick(self, event):
        val = event.GetSelection()
        self.SetListValue(val)

    def SetListValue(self, val):
        file_nm = self.fl_list[val]
        self.set_file = file_val = os.path.join(self.set_dir, file_nm)
        if val>=self.fl_ndirs:
            self.image_view.SetValue(file_val)
        else:
            self.image_view.SetValue(None)

    def OnDirectoryTextSet(self,event):
        event.Skip()
        path = event.GetString()
        if os.path.isdir(path):
            self.set_dir = path
            self.ResetFiles()
            return

        if os.path.isfile(path):
            dname,fname = os.path.split(path)
            if os.path.isdir(dname):
                self.ResetFiles()
            # try to select fname in list
            try:
                idx = self.fl_list.index(fname)
                self.tb.SetSelection(idx)
                self.SetListValue(idx)
                return
            except ValueError:
                pass

        wx.Bell()
    
    def OnUpDirectory(self, event):
        sdir = os.path.split(self.set_dir)[0]
        self.set_dir = sdir
        self.ResetFiles()
        
    def OnChooseDirectory(self, event):     # set the new directory
        dlg = wx.DirDialog(self)
        dlg.SetPath(self.set_dir)

        if dlg.ShowModal() == wx.ID_OK:
            self.set_dir = dlg.GetPath()
            self.ResetFiles()

        dlg.Destroy()

    def ResetFiles(self):   # refresh the display with files and initial image
        self.DisplayDir()
        self.GetFiles()

        # Changed 12/8/03 jmg
        #
        # o Clear listbox first
        # o THEN check to see if there are any valid files of the selected
        #   type, 
        # o THEN if we have any files to display, set the listbox up,
        #
        # OTHERWISE
        #
        # o Leave it cleared
        # o Clear the image viewer.
        #
        # This avoids a nasty assert error.
        #
        self.tb.Clear()
        
        if len(self.fl_list):
            self.tb.Set(self.fl_list)

            for idir in xrange(self.fl_ndirs):
                d = self.fl_list[idir]
                # mark directories as 'True' with client data
                self.tb.SetClientData(idir, True)
                self.tb.SetString(idir,'['+d+']')

            try:
                self.tb.SetSelection(0)
                self.SetListValue(0)
            except:
                self.image_view.SetValue(None)
        else:
            self.image_view.SetValue(None)

    def GetFile(self):
        return self.set_file

    def GetDirectory(self):
        return self.set_dir

    def OnCancel(self, event):
        self.result = None
        self.EndModal(wx.ID_CANCEL)

    def OnOk(self, event):
        if os.path.isdir(self.set_file):
            sdir = os.path.split(self.set_file)
	
            #os.path.normapth?
            if sdir and sdir[-1]=='..':
                sdir = os.path.split(sdir[0])[0]
                sdir = os.path.split(sdir)
            self.set_dir = os.path.join(*sdir)
            self.set_file = None
            self.ResetFiles()
        elif event != 'dclick':
            self.result = self.set_file
            self.EndModal(wx.ID_OK)



class FindFiles:
    def __init__(self, parent, dir, mask, with_dirs=True):
        filelist = []
        dirlist = [".."]
        self.dir = dir
        self.file = ""
        mask = mask.upper()
        pattern = self.MakeRegex(mask)

        for i in os.listdir(dir):
            if i == "." or i == "..":
                continue

            path = os.path.join(dir, i)

            if os.path.isdir(path):
                dirlist.append(i)
                continue

            path = path.upper()
            value = i.upper()

            if pattern.match(value) != None:
                filelist.append(i)


        self.files = filelist
        if with_dirs:
            self.dirs = dirlist

    def MakeRegex(self, pattern):
        import re
        f = ""  # Set up a regex for file names

        for ch in pattern:
            if ch == "*":
                f = f + ".*"
            elif ch == ".":
                f = f + "\."
            elif ch == "?":
                f = f + "."
            else:
                f = f + ch

        return re.compile(f+'$')

    def StripExt(self, file_nm):
        fl_fld = os.path.splitext(file_nm)
        fl_name = fl_fld[0]
        ext = fl_fld[1]
        return ext[1:]


#----------------------------------------------------------------------
# This part of the file was generated by C:\Python25\Scripts\img2py
# then edited slightly.

from wx.lib.embeddedimage import PyEmbeddedImage

IMG_CATALOG = {}

IMG_CATALOG['White'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAAIUlE"
    "QVQYlWNgIAIwMjAw/P//H58KRkYmYkwaVUScIqIAAMjRAxRV8+5MAAAAAElFTkSuQmCC")

IMG_CATALOG['Grey'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAAIklE"
    "QVQYlWNgIAIwMjAwnDlzBo8KExMTJmJMGlVEnCKiAAC24wMULFLZGAAAAABJRU5ErkJggg==")

IMG_CATALOG['Black'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAADklE"
    "QVQYlWNgGAVDFQAAAbwAATN8mzYAAAAASUVORK5CYII=")

IMG_CATALOG['Checked'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAAMUlE"
    "QVQYlWNgIAIwMjAwnDlzBlnI2NgYRQUjIxMxJtFZEQsDhkvPnj07sG4iShFRAAAougYW+urT"
    "ZwAAAABJRU5ErkJggg==")

IMG_CATALOG['NoFrame'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAANklE"
    "QVQYla2PQQoAIBACnej/X7ZbUEQtkudhVKkQJNm+EdAqpggCgB+m44kFml1bY39q0k15Bsuc"
    "CR/z8ajiAAAAAElFTkSuQmCC")

IMG_CATALOG['BoxFrame'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAAQ0lE"
    "QVQYlZ2O0QoAIAgDd9L//7I9CFEhJu1psmNOaghJ7l4RYJ0m1U0R2X4vevcHVOiG0tcHBABh"
    "8nWpIhpPLtn0rwm4WyD966x3sgAAAABJRU5ErkJggg==")

IMG_CATALOG['CropFrame'] = PyEmbeddedImage(
    "iVBORw0KGgoAAAANSUhEUgAAAAwAAAAMCAIAAADZF8uwAAAAA3NCSVQICAjb4U/gAAAASUlE"
    "QVQYlb2QMQrAQAgEZ0P+q0/RF5tCuIMUh2myhcgyjCAMIiAiDoS7XxPTCLrXZmaAJKCqgMz8"
    "YHpD7ThBkvpcz93z6wtGeQD/sQ8bfXs8NAAAAABJRU5ErkJggg==")