# Copyright (c) 2008, Guilherme Polo # All rights reserved. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions are met: # # * Redistributions of source code must retain the above copyright notice, # this list of conditions and the following disclaimer. # * Redistributions in binary form must reproduce the above copyright notice, # this list of conditions and the following disclaimer in the documentation # and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE # ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE # LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. """ This contains a wrapper class for the tktable widget as well a class for using tcl arrays that are, in some instances, required by tktable. """ __author__ = "Guilherme Polo " __all__ = ["ArrayVar", "Table"] import Tkinter class ArrayVar(Tkinter.Variable): def __init__(self, master=None, name=None): # Tkinter.Variable.__init__ is not called on purpose! I don't wanna # see an ugly _default value in the pretty array. if master is None: if Tkinter._support_default_root: master = Tkinter._default_root or Tkinter.Tk() else: raise RuntimeError("No master specified and Tkinter is " "configured to not support default master") self._master = master self._tk = master.tk if name: self._name = name else: self._name = 'PY_VAR%s' % id(self) def get(self, index=None): if index is None: res = {} for key in self.names(): res[key] = self._tk.globalgetvar(str(self), key) return res return self._tk.globalgetvar(str(self), str(index)) def names(self): return self._tk.call('array', 'names', self._name) def set(self, key, value): self._tk.globalsetvar(str(self), str(key), value) class Table(Tkinter.Widget): """Create and manipulate tables.""" _switches = ('holddimensions', 'holdselection', 'holdtags', 'holdwindows', 'keeptitles', '-') _tabsubst_format = ('%c', '%C', '%i', '%r', '%s', '%S', '%W') _tabsubst_commands = ('browsecommand', 'browsecmd', 'command', 'selectioncommand', 'selcmd', 'validatecommand', 'valcmd') def __init__(self, master=None, **kw): if master is None: if Tkinter._support_default_root: master = Tkinter._default_root or Tkinter.Tk() else: raise RuntimeError("No master specified and Tkinter is " "configured to not support default master") try: master.tk.call('package', 'require', 'Tktable') except Tkinter.TclError: try: master.tk.call('load', 'Tktable.dll', 'Tktable') except Tkinter.TclError: master.tk.call('load', '', 'Tktable') Tkinter.Widget.__init__(self, master, 'table', kw) def _options(self, cnf, kw=None): if kw: cnf = Tkinter._cnfmerge((cnf, kw)) else: cnf = Tkinter._cnfmerge(cnf) res = () for k, v in cnf.iteritems(): if callable(v): if k in self._tabsubst_commands: v = "%s %s" % (self._register(v, self._tabsubst), ' '.join(self._tabsubst_format)) else: v = self._register(v) res += ('-%s' % k, v) return res def _tabsubst(self, *args): if len(args) != len(self._tabsubst_format): return args tk = self.tk c, C, i, r, s, S, W = args e = Tkinter.Event() e.widget = self e.c = tk.getint(c) e.i = tk.getint(i) e.r = tk.getint(r) e.C = (e.r, e.c) try: e.s = tk.getint(s) except Tkinter.TclError: e.s = s try: e.S = tk.getint(S) except Tkinter.TclError: e.S = S e.W = W return (e,) def _handle_switches(self, args): args = args or () return tuple(('-%s' % x) for x in args if x in self._switches) def activate(self, index): """Set the active cell to the one indicated by index.""" self.tk.call(self._w, 'activate', index) def bbox(self, first, last=None): """Return the bounding box for the specified cell (range) as a 4-tuple of x, y, width and height in pixels. It clips the box to the visible portion, if any, otherwise an empty tuple is returned.""" return self._getints(self.tk.call(self._w, 'bbox', first, last)) or () def clear(self, option, first=None, last=None): """This is a convenience routine to clear certain state information managed by the table. first and last represent valid table indices. If neither are specified, then the command operates on the whole table.""" self.tk.call(self._w, 'clear', option, first, last) def clear_cache(self, first=None, last=None): """Clear the specified section of the cache, if the table has been keeping one.""" self.clear('cache', first, last) def clear_sizes(self, first=None, last=None): """Clear the specified row and column areas of specific height/width dimensions. When just one index is specified, for example 2,0, that is interpreted as row 2 and column 0.""" self.clear('sizes', first, last) def clear_tags(self, first=None, last=None): """Clear the specified area of tags (all row, column and cell tags).""" self.clear('tags', first, last) def clear_all(self, first=None, last=None): """Perform all of the above clear functions on the specified area.""" self.clear('all', first, last) def curselection(self, value=None): """With no arguments, it returns the sorted indices of the currently selected cells. Otherwise it sets all the selected cells to the given value if there is an associated ArrayVar and the state is not disabled.""" result = self.tk.call(self._w, 'curselection', value) if value is None: return result def curvalue(self, value=None): """If no value is given, the value of the cell being edited (indexed by active) is returned, else it is set to the given value. """ return self.tk.call(self._w, 'curvalue', value) def delete_active(self, index1, index2=None): """Deletes text from the active cell. If only one index is given, it deletes the character after that index, otherwise it deletes from the first index to the second. index can be a number, insert or end.""" self.tk.call(self._w, 'delete', 'active', index1, index2) def delete_cols(self, index, count=None, switches=None): args = self._handle_switches(switches) + (index, count) self.tk.call(self._w, 'delete', 'cols', *args) def delete_rows(self, index, count=None, switches=None): args = self._handle_switches(switches) + (index, count) self.tk.call(self._w, 'delete', 'rows', *args) def get(self, first, last=None): """Returns the value of the cells specified by the table indices first and (optionally) last.""" return self.tk.call(self._w, 'get', first, last) def height(self, row=None, **kwargs): """If row and kwargs are not given, a list describing all rows for which a width has been set is returned. If row is given, the height of that row is returnd. If kwargs is given, then it sets the key/value pairs, where key is a row and value represents the height for the row.""" if row is None and not kwargs: pairs = self.tk.splitlist(self.tk.call(self._w, 'height')) return dict(pair.split() for pair in pairs) elif row: return int(self.tk.call(self._w, 'height', str(row))) args = () for key, val in kwargs.iteritems(): args += (key, val) self.tk.call(self._w, 'height', *args) def hidden(self, *args): """When called without args, it returns all the hidden cells (those cells covered by a spanning cell). If one index is specified, it returns the spanning cell covering that index, if any. If multiple indices are specified, it returns 1 if all indices are hidden cells, 0 otherwise.""" return self.tk.call(self._w, 'hidden', *args) def icursor(self, arg=None): """If arg is not specified, return the location of the insertion cursor in the active cell. Otherwise, set the cursor to that point in the string. 0 is before the first character, you can also use insert or end for the current insertion point or the end of the text. If there is no active cell, or the cell or table is disabled, this will return -1.""" return self.tk.call(self._w, 'icursor', arg) def index(self, index, rc=None): """Return the integer cell coordinate that corresponds to index in the form row, col. If rc is specified, it must be either 'row' or 'col' so only the row or column index is returned.""" res = self.tk.call(self._w, 'index', index, rc) if rc is None: return res else: return int(res) def insert_active(self, index, value): """The value is a text string which is inserted at the index postion of the active cell. The cursor is then positioned after the new text. index can be a number, insert or end. """ self.tk.call(self._w, 'insert', 'active', index, value) def insert_cols(self, index, count=None, switches=None): args = self._handle_switches(switches) + (index, count) self.tk.call(self._w, 'insert', 'cols', *args) def insert_rows(self, index, count=None, switches=None): args = self._handle_switches(switches) + (index, count) self.tk.call(self._w, 'insert', 'rows', *args) #def postscript(self, **kwargs): # """Skip this command if you are under Windows. # # Accepted options: # colormap, colormode, file, channel, first, fontmap, height, # last, pageanchor, pageheight, pagewidth, pagex, pagey, rotate, # width, x, y # """ # args = () # for key, val in kwargs.iteritems(): # args += ('-%s' % key, val) # # return self.tk.call(self._w, 'postscript', *args) def reread(self): """Rereads the old contents of the cell back into the editing buffer. Useful for a key binding when is pressed to abort the edit (a default binding).""" self.tk.call(self._w, 'reread') def scan_mark(self, x, y): self.tk.call(self._w, 'scan', 'mark', x, y) def scan_dragto(self, x, y): self.tk.call(self._w, 'scan', 'dragto', x, y) def see(self, index): self.tk.call(self._w, 'see', index) def selection_anchor(self, index): self.tk.call(self._w, 'selection', 'anchor', index) def selection_clear(self, first, last=None): self.tk.call(self._w, 'selection', 'clear', first, last) def selection_includes(self, index): return self.getboolean(self.tk.call(self._w, 'selection', 'includes', index)) def selection_set(self, first, last=None): self.tk.call(self._w, 'selection', 'set', first, last) def set(self, rc=None, index=None, *args, **kwargs): """If rc is specified (either 'row' or 'col') then it is assumes that args (if given) represents values which will be set into the subsequent columns (if row is specified) or rows (for col). If index is not None and args is not given, then it will return the value(s) for the cell(s) specified. If kwargs is given, assumes that each key in kwargs is a index in this table and sets the specified index to the associated value. Table validation will not be triggered via this method. Note that the table must have an associated array (defined through the variable option) in order to this work.""" if not args and index is not None: if rc: args = (rc, index) else: args = (index, ) return self.tk.call(self._w, 'set', *args) if rc is None: args = () for key, val in kwargs.iteritems(): args += (key, val) self.tk.call(self._w, 'set', *args) else: self.tk.call(self._w, 'set', rc, index, args) def spans(self, index=None, **kwargs): """Manipulate row/col spans. When called with no arguments, all known spans are returned as a dict. When called with only the index, the span for that index only is returned, if any. Otherwise kwargs is assumed to contain keys/values pairs used to set spans. A span starts at the row,col defined by a key and continues for the specified number of rows,cols specified by its value. A span of 0,0 unsets any span on that cell.""" if kwargs: args = () for key, val in kwargs.iteritems(): args += (key, val) self.tk.call(self._w, 'spans', *args) else: return self.tk.call(self._w, 'spans', index) def tag_cell(self, tagname, *args): return self.tk.call(self._w, 'tag', 'cell', tagname, *args) def tag_cget(self, tagname, option): return self.tk.call(self._w, 'tag', 'cget', tagname, '-%s' % option) def tag_col(self, tagname, *args): return self.tk.call(self._w, 'tag', 'col', tagname, *args) def tag_configure(self, tagname, option=None, **kwargs): """Query or modify options associated with the tag given by tagname. If no option is specified, a dict describing all of the available options for tagname is returned. If option is specified, then the command returns a list describing the one named option. Lastly, if kwargs is given then it corresponds to option-value pairs that should be modified.""" if option is None and not kwargs: split1 = self.tk.splitlist( self.tk.call(self._w, 'tag', 'configure', tagname)) result = {} for item in split1: res = self.tk.splitlist(item) result[res[0]] = res[1:] return result elif option: return self.tk.call(self._w, 'tag', 'configure', tagname, '-%s' % option) else: args = () for key, val in kwargs.iteritems(): args += ('-%s' % key, val) self.tk.call(self._w, 'tag', 'configure', tagname, *args) def tag_delete(self, tagname): self.tk.call(self._w, 'tag', 'delete', tagname) def tag_exists(self, tagname): return self.getboolean(self.tk.call(self._w, 'tag', 'exists', tagname)) def tag_includes(self, tagname, index): return self.getboolean(self.tk.call(self._w, 'tag', 'includes', tagname, index)) def tag_lower(self, tagname, belowthis=None): self.tk.call(self._w, 'tag', 'lower', belowthis) def tag_names(self, pattern=None): return self.tk.call(self._w, 'tag', 'names', pattern) def tag_raise(self, tagname, abovethis=None): self.tk.call(self._w, 'tag', 'raise', tagname, abovethis) def tag_row(self, tagname, *args): return self.tk.call(self._w, 'tag', 'row', tagname, *args) def validate(self, index): """Explicitly validates the specified index based on the current callback set for the validatecommand option. Return 0 or 1 based on whether the cell was validated.""" return self.tk.call(self._w, 'validate', index) @property def version(self): """Return tktable's package version.""" return self.tk.call(self._w, 'version') def width(self, column=None, **kwargs): """If column and kwargs are not given, a dict describing all columns for which a width has been set is returned. If column is given, the width of that column is returnd. If kwargs is given, then it sets the key/value pairs, where key is a column and value represents the width for the column.""" if column is None and not kwargs: pairs = self.tk.splitlist(self.tk.call(self._w, 'width')) return dict(pair.split() for pair in pairs) elif column: return int(self.tk.call(self._w, 'width', str(column))) args = () for key, val in kwargs.iteritems(): args += (key, val) self.tk.call(self._w, 'width', *args) def window_cget(self, index, option): return self.tk.call(self._w, 'window', 'cget', index, option) def window_configure(self, index, option=None, **kwargs): """Query or modify options associated with the embedded window given by index. If no option is specified, a dict describing all of the available options for index is returned. If option is specified, then the command returns a list describing the one named option. Lastly, if kwargs is given then it corresponds to option-value pairs that should be modified.""" if option is None and not kwargs: return self.tk.call(self._w, 'window', 'configure', index) elif option: return self.tk.call(self._w, 'window', 'configure', index, '-%s' % option) else: args = () for key, val in kwargs.iteritems(): args += ('-%s' % key, val) self.tk.call(self._w, 'window', 'configure', index, *args) def window_delete(self, *indexes): self.tk.call(self._w, 'window', 'delete', *indexes) def window_move(self, index_from, index_to): self.tk.call(self._w, 'window', 'move', index_from, index_to) def window_names(self, pattern=None): return self.tk.call(self._w, 'window', 'names', pattern) def xview(self, index=None): """If index is not given a tuple containing two fractions is returned, each fraction is between 0 and 1. Together they describe the horizontal span that is visible in the window. If index is given the view in the window is adjusted so that the column given by index is displayed at the left edge of the window.""" res = self.tk.call(self._w, 'xview', index) if index is None: return self._getdoubles(res) def xview_moveto(self, fraction): """Adjusts the view in the window so that fraction of the total width of the table text is off-screen to the left. The fraction parameter must be a fraction between 0 and 1.""" self.tk.call(self._w, 'xview', 'moveto', fraction) def xview_scroll(self, number, what): """Shift the view in the window left or right according to number and what. The 'number' parameter must be an integer. The 'what' parameter must be either units or pages or an abbreviation of one of these. If 'what' is units, the view adjusts left or right by number cells on the display; if it is pages then the view adjusts by number screenfuls. If 'number' is negative then cells farther to the left become visible; if it is positive then cells farther to the right become visible. """ self.tk.call(self._w, 'xview', 'scroll', number, what) def yview(self, index=None): """If index is not given a tuple containing two fractions is returned, each fraction is between 0 and 1. The first element gives the position of the table element at the top of the window, relative to the table as a whole. The second element gives the position of the table element just after the last one in the window, relative to the table as a whole. If index is given the view in the window is adjusted so that the row given by index is displayed at the top of the window.""" res = self.tk.call(self._w, 'yview', index) if index is None: return self._getdoubles(res) def yview_moveto(self, fraction): """Adjusts the view in the window so that the element given by fraction appears at the top of the window. The fraction parameter must be a fraction between 0 and 1.""" self.tk.call(self._w, 'yview', 'moveto', fraction) def yview_scroll(self, number, what): """Adjust the view in the window up or down according to number and what. The 'number' parameter must be an integer. The 'what' parameter must be either units or pages or an abbreviation of one of these. If 'what' is units, the view adjusts up or down by number cells; if it is pages then the view adjusts by number screenfuls. If 'number' is negative then earlier elements become visible; if it is positive then later elements become visible. """ self.tk.call(self._w, 'yview', 'scroll', number, what) # Sample test taken from tktable cvs, original tktable python wrapper def sample_test(): from Tkinter import Tk, Label, Button def test_cmd(event): if event.i == 0: return '%i, %i' % (event.r, event.c) else: return 'set' def browsecmd(event): print "event:", event.__dict__ print "curselection:", test.curselection() print "active cell index:", test.index('active') print "active:", test.index('active', 'row') print "anchor:", test.index('anchor', 'row') root = Tk() var = ArrayVar(root) for y in range(-1, 4): for x in range(-1, 5): index = "%i,%i" % (y, x) var.set(index, index) label = Label(root, text="Proof-of-existence test for Tktable") label.pack(side = 'top', fill = 'x') quit = Button(root, text="QUIT", command=root.destroy) quit.pack(side = 'bottom', fill = 'x') test = Table(root, rows=10, cols=5, state='disabled', width=6, height=6, titlerows=1, titlecols=1, roworigin=-1, colorigin=-1, selectmode='browse', selecttype='row', rowstretch='unset', colstretch='last', browsecmd=browsecmd, flashmode='on', variable=var, usecommand=0, command=test_cmd) test.pack(expand=1, fill='both') test.tag_configure('sel', background = 'yellow') test.tag_configure('active', background = 'blue') test.tag_configure('title', anchor='w', bg='red', relief='sunken') root.mainloop() if __name__ == '__main__': sample_test()