1# filebox.rb
2#
3# This demonstration script prompts the user to select a file.#
4# widget demo prompts the user to select a file (called by 'widget')
5#
6
7# toplevel widget
8if defined?($filebox_demo) && $filebox_demo
9  $filebox_demo.destroy
10  $filebox_demo = nil
11end
12
13# demo toplevel widget
14$filebox_demo = TkToplevel.new {|w|
15  title("File Selection Dialogs")
16  iconname("filebox")
17  positionWindow(w)
18}
19
20base_frame = TkFrame.new($filebox_demo).pack(:fill=>:both, :expand=>true)
21
22# label
23TkLabel.new(base_frame,'font'=>$font,'wraplength'=>'4i','justify'=>'left',
24            'text'=>"Enter a file name in the entry box or click on the \"Browse\" buttons to select a file name using the file selection dialog.").pack('side'=>'top')
25
26# frame
27TkFrame.new(base_frame) {|frame|
28  TkButton.new(frame) {
29    text 'Dismiss'
30    command proc{
31      tmppath = $filebox_demo
32      $filebox_demo = nil
33      tmppath.destroy
34    }
35  }.pack('side'=>'left', 'expand'=>'yes')
36
37  TkButton.new(frame) {
38    text 'Show Code'
39    command proc{showCode 'filebox'}
40  }.pack('side'=>'left', 'expand'=>'yes')
41}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
42
43# frame
44['open', 'save'].each{|type|
45  TkFrame.new(base_frame) {|f|
46    TkLabel.new(f, 'text'=>"Select a file to #{type}: ", 'anchor'=>'e')\
47    .pack('side'=>'left')
48
49    TkEntry.new(f, 'width'=>20) {|e|
50      pack('side'=>'left', 'expand'=>'yes', 'fill'=>'x')
51
52      TkButton.new(f, 'text'=>'Browse ...',
53                   'command'=>proc{fileDialog base_frame,e,type})\
54      .pack('side'=>'left')
55    }
56
57    pack('fill'=>'x', 'padx'=>'1c', 'pady'=>3)
58  }
59}
60
61$tk_strictMotif = TkVarAccess.new('tk_strictMotif')
62if ($tk_platform['platform'] == 'unix')
63  TkCheckButton.new(base_frame,
64                    'text'=>'Use Motif Style Dialog',
65                    'variable'=>$tk_strictMotif,
66                    'onvalue'=>1, 'offvalue'=>0 ).pack('anchor'=>'c')
67end
68
69def fileDialog(w,ent,operation)
70  #    Type names         Extension(s)             Mac File Type(s)
71  #
72  #--------------------------------------------------------
73  types = [
74    ['Text files',       ['.txt','.doc']          ],
75    ['Text files',       [],                      'TEXT' ],
76    ['Ruby Scripts',     ['.rb'],                 'TEXT' ],
77    ['Tcl Scripts',      ['.tcl'],                'TEXT' ],
78    ['C Source Files',   ['.c','.h']              ],
79    ['All Source Files', ['.rb','.tcl','.c','.h'] ],
80    ['Image Files',      ['.gif']                 ],
81    ['Image Files',      ['.jpeg','.jpg']         ],
82    ['Image Files',      [],                      ['GIFF','JPEG']],
83    ['All files',        '*'                      ]
84  ]
85
86  if operation == 'open'
87    file = Tk.getOpenFile('filetypes'=>types, 'parent'=>w)
88  else
89    file = Tk.getSaveFile('filetypes'=>types, 'parent'=>w,
90                          'initialfile'=>'Untitled',
91                          'defaultextension'=>'.txt')
92  end
93  if file != ""
94    ent.delete 0, 'end'
95    ent.insert 0, file
96    # ent.xview 'end'
97    Tk.update_idletasks # need this for Tk::Tile::Entry
98                        # (to find right position of 'xview').
99    ent.xview(ent.index('end'))
100  end
101end
102
103