I've now added the documentation files.

[wxWidgets.git] / utils / dialoged / docs / open.eps

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+%!PS-Adobe-2.0 EPSF-2.0
+%%Title: open.eps
+%%Creator: XV Version 2.20  Rev: 4/24/92  -  by John Bradley
+%%BoundingBox: 254 389 270 404
+%%Pages: 1
+%%DocumentFonts:
+%%EndComments
+%%EndProlog
+
+%%Page: 1 1
+
+% remember original state
+/origstate save def
+
+% build a temporary dictionary
+20 dict begin
+
+% lower left corner
+254 389 translate
+
+% size of image (on paper, in 1/72inch coords)
+16 15 scale
+
+% define 'colorimage' if it isn't defined
+%   ('colortogray' and 'mergeprocs' come from xwd2ps
+%     via xgrab)
+/colorimage where   % do we know about 'colorimage'?
+  { pop }           % yes: pop off the 'dict' returned
+  {                 % no:  define one
+    /colortogray {  % define an RGB->I function
+      /rgbdata exch store    % call input 'rgbdata'
+      rgbdata length 3 idiv
+      /npixls exch store
+      /rgbindx 0 store
+      /grays npixls string store  % str to hold the result
+      0 1 npixls 1 sub {
+        grays exch
+        rgbdata rgbindx       get 20 mul    % Red
+        rgbdata rgbindx 1 add get 32 mul    % Green
+        rgbdata rgbindx 2 add get 12 mul    % Blue
+        add add 64 idiv      % I = .5G + .31R + .18B
+        put
+        /rgbindx rgbindx 3 add store
+      } for
+      grays
+    } bind def
+
+    % Utility procedure for colorimage operator.
+    % This procedure takes two procedures off the
+    % stack and merges them into a single procedure.
+
+    /mergeprocs { % def
+      dup length
+      3 -1 roll
+      dup
+      length
+      dup
+      5 1 roll
+      3 -1 roll
+      add
+      array cvx
+      dup
+      3 -1 roll
+      0 exch
+      putinterval
+      dup
+      4 2 roll
+      putinterval
+    } bind def
+
+    /colorimage { % def
+      pop pop     % remove 'false 3' operands
+      {colortogray} mergeprocs
+      image
+    } bind def
+  } ifelse          % end of 'false' case
+
+
+
+% define the colormap
+/cmap 12 string def
+
+
+% load up the colormap
+currentfile cmap readhexstring
+000000 c0c0c0 808080 ffffff 
+pop pop   % lose return values from readhexstring
+
+
+% rlecmapimage expects to have 'w h bits matrix' on stack
+/rlecmapimage {
+  /buffer 1 string def
+  /rgbval 3 string def
+  /block  384 string def
+
+  % proc to read a block from file, and return RGB data
+  { currentfile buffer readhexstring pop
+    /bcount exch 0 get store
+    bcount 128 ge
+    {  % it's a non-run block
+      0 1 bcount 128 sub
+      { currentfile buffer readhexstring pop pop
+
+        % look up value in color map
+        /rgbval cmap buffer 0 get 3 mul 3 getinterval store
+
+        % and put it in position i*3 in block
+        block exch 3 mul rgbval putinterval
+      } for
+      block  0  bcount 127 sub 3 mul  getinterval
+    }
+
+    { % else it's a run block
+      currentfile buffer readhexstring pop pop
+
+      % look up value in colormap
+      /rgbval cmap buffer 0 get 3 mul 3 getinterval store
+
+      0 1 bcount { block exch 3 mul rgbval putinterval } for
+
+      block 0 bcount 1 add 3 mul getinterval
+    } ifelse
+  } % end of proc
+  false 3 colorimage
+} bind def
+
+
+16 15 8                        % dimensions of data
+[16 0 0 -15 0 15]              % mapping matrix
+rlecmapimage
+
+0f01
+090102000201
+0801810001010182000100
+0d010100
+0101020007010200
+82010003010306000301
+8201000307038100010201
+8201000307038100010201
+8201000302030900
+82010003010381000207020000
+82010003820300020702810001
+84010003000281020081000203028100010001
+81010081000207028100010101
+81010009000301
+0f01
+
+%
+% Compression made this file 19.17% of the uncompressed size.
+%
+
+
+showpage
+
+% stop using temporary dictionary
+end
+
+% restore original state
+origstate restore
+
+%%Trailer