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author | Guido van Rossum <guido@python.org> | 1990-10-13 19:23:40 (GMT) |
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committer | Guido van Rossum <guido@python.org> | 1990-10-13 19:23:40 (GMT) |
commit | c636014c430620325f8d213e9ba10d925991b8d7 (patch) | |
tree | 058a21f7da3d8c6e7da0756ef7b1402fe7169a1a /Lib/lib-stdwin/listwin.py | |
parent | df79a1ee192231a75a381798bb35cefaf6c31a2a (diff) | |
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Initial revision
Diffstat (limited to 'Lib/lib-stdwin/listwin.py')
-rw-r--r-- | Lib/lib-stdwin/listwin.py | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/Lib/lib-stdwin/listwin.py b/Lib/lib-stdwin/listwin.py new file mode 100644 index 0000000..9480a81 --- /dev/null +++ b/Lib/lib-stdwin/listwin.py @@ -0,0 +1,47 @@ +# Module 'listwin' +# List windows, a subclass of gwin + +import gwin +import stdwin + +def maxlinewidth(a): # Compute maximum textwidth of lines in a sequence + max = 0 + for line in a: + width = stdwin.textwidth(line) + if width > max: max = width + return max + +def action(w, string, i, detail): # Default item selection method + pass + +def mup(w, detail): # Mouse up method + (h, v), clicks, button, mask = detail + i = divmod(v, w.lineheight)[0] + if 0 <= i < len(w.data): + w.action(w, w.data[i], i, detail) + +def draw(w, ((left, top), (right, bottom))): # Text window draw method + data = w.data + d = w.begindrawing() + lh = w.lineheight + itop = top/lh + ibot = (bottom-1)/lh + 1 + if itop < 0: itop = 0 + if ibot > len(data): ibot = len(data) + for i in range(itop, ibot): d.text((0, i*lh), data[i]) + +def open(title, data): # Display a list of texts in a window + lineheight = stdwin.lineheight() + h, v = maxlinewidth(data), len(data)*lineheight + h0, v0 = h + stdwin.textwidth(' '), v + lineheight + if h0 > stdwin.textwidth(' ')*80: h0 = 0 + if v0 > stdwin.lineheight()*24: v0 = 0 + stdwin.setdefwinsize(h0, v0) + w = gwin.open(title) + w.setdocsize(h, v) + w.lineheight = lineheight + w.data = data + w.draw = draw + w.action = action + w.mup = mup + return w |