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Current Path: /opt/alt/python36/lib64/python3.6/idlelib

opt / alt / python36 / lib64 / python3.6 / idlelib /

ðŸ“ ..
ðŸ“„ CREDITS.txt(1.82 KB)
ðŸ“„ ChangeLog(55.04 KB)
ðŸ“„ HISTORY.txt(10.07 KB)
ðŸ“ Icons
ðŸ“„ NEWS.txt(38.91 KB)
ðŸ“„ NEWS2x.txt(26.54 KB)
ðŸ“„ README.txt(9.37 KB)
ðŸ“„ TODO.txt(8.28 KB)
ðŸ“„ __init__.py(396 B)
ðŸ“„ __main__.py(159 B)
ðŸ“ __pycache__
ðŸ“„ _pyclbr.py(14.84 KB)
ðŸ“„ autocomplete.py(9.11 KB)
ðŸ“„ autocomplete_w.py(19.36 KB)
ðŸ“„ autoexpand.py(3.14 KB)
ðŸ“„ browser.py(8.09 KB)
ðŸ“„ calltip.py(5.92 KB)
ðŸ“„ calltip_w.py(6.94 KB)
ðŸ“„ codecontext.py(10.24 KB)
ðŸ“„ colorizer.py(11.01 KB)
ðŸ“„ config-extensions.def(2.21 KB)
ðŸ“„ config-highlight.def(2.62 KB)
ðŸ“„ config-keys.def(10.52 KB)
ðŸ“„ config-main.def(3.05 KB)
ðŸ“„ config.py(37.97 KB)
ðŸ“„ config_key.py(13.09 KB)
ðŸ“„ configdialog.py(98.69 KB)
ðŸ“„ debugger.py(18.65 KB)
ðŸ“„ debugger_r.py(11.86 KB)
ðŸ“„ debugobj.py(3.96 KB)
ðŸ“„ debugobj_r.py(1.06 KB)
ðŸ“„ delegator.py(1.02 KB)
ðŸ“„ dynoption.py(1.97 KB)
ðŸ“„ editor.py(65.7 KB)
ðŸ“„ extend.txt(3.56 KB)
ðŸ“„ filelist.py(3.8 KB)
ðŸ“„ grep.py(6.58 KB)
ðŸ“„ help.html(53.82 KB)
ðŸ“„ help.py(11.06 KB)
ðŸ“„ help_about.py(8.77 KB)
ðŸ“„ history.py(3.95 KB)
ðŸ“„ hyperparser.py(12.58 KB)
ðŸ“„ idle.py(454 B)
ðŸ“„ idle.pyw(570 B)
ðŸ“ idle_test
ðŸ“„ iomenu.py(20.25 KB)
ðŸ“„ macosx.py(9.43 KB)
ðŸ“„ mainmenu.py(3.62 KB)
ðŸ“„ multicall.py(18.21 KB)
ðŸ“„ outwin.py(5.67 KB)
ðŸ“„ paragraph.py(7 KB)
ðŸ“„ parenmatch.py(7.04 KB)
ðŸ“„ pathbrowser.py(3.12 KB)
ðŸ“„ percolator.py(3.06 KB)
ðŸ“„ pyparse.py(19.65 KB)
ðŸ“„ pyshell.py(56.38 KB)
ðŸ“„ query.py(12.14 KB)
ðŸ“„ redirector.py(6.71 KB)
ðŸ“„ replace.py(7.33 KB)
ðŸ“„ rpc.py(20.64 KB)
ðŸ“„ rstrip.py(868 B)
ðŸ“„ run.py(16.87 KB)
ðŸ“„ runscript.py(7.66 KB)
ðŸ“„ scrolledlist.py(4.35 KB)
ðŸ“„ search.py(3.09 KB)
ðŸ“„ searchbase.py(7.28 KB)
ðŸ“„ searchengine.py(7.3 KB)
ðŸ“„ squeezer.py(13 KB)
ðŸ“„ stackviewer.py(4.35 KB)
ðŸ“„ statusbar.py(1.41 KB)
ðŸ“„ textview.py(5.98 KB)
ðŸ“„ tooltip.py(6.33 KB)
ðŸ“„ tree.py(14.74 KB)
ðŸ“„ undo.py(10.79 KB)
ðŸ“„ window.py(2.53 KB)
ðŸ“„ zoomheight.py(1.31 KB)
ðŸ“„ zzdummy.py(961 B)

Editing: tree.py

# XXX TO DO:
# - popup menu
# - support partial or total redisplay
# - key bindings (instead of quick-n-dirty bindings on Canvas):
#   - up/down arrow keys to move focus around
#   - ditto for page up/down, home/end
#   - left/right arrows to expand/collapse & move out/in
# - more doc strings
# - add icons for "file", "module", "class", "method"; better "python" icon
# - callback for selection???
# - multiple-item selection
# - tooltips
# - redo geometry without magic numbers
# - keep track of object ids to allow more careful cleaning
# - optimize tree redraw after expand of subnode

import os

from tkinter import *
from tkinter.ttk import Scrollbar

from idlelib.config import idleConf
from idlelib import zoomheight

ICONDIR = "Icons"

# Look for Icons subdirectory in the same directory as this module
try:
    _icondir = os.path.join(os.path.dirname(__file__), ICONDIR)
except NameError:
    _icondir = ICONDIR
if os.path.isdir(_icondir):
    ICONDIR = _icondir
elif not os.path.isdir(ICONDIR):
    raise RuntimeError("can't find icon directory (%r)" % (ICONDIR,))

def listicons(icondir=ICONDIR):
    """Utility to display the available icons."""
    root = Tk()
    import glob
    list = glob.glob(os.path.join(icondir, "*.gif"))
    list.sort()
    images = []
    row = column = 0
    for file in list:
        name = os.path.splitext(os.path.basename(file))[0]
        image = PhotoImage(file=file, master=root)
        images.append(image)
        label = Label(root, image=image, bd=1, relief="raised")
        label.grid(row=row, column=column)
        label = Label(root, text=name)
        label.grid(row=row+1, column=column)
        column = column + 1
        if column >= 10:
            row = row+2
            column = 0
    root.images = images

class TreeNode:

def __init__(self, canvas, parent, item):
        self.canvas = canvas
        self.parent = parent
        self.item = item
        self.state = 'collapsed'
        self.selected = False
        self.children = []
        self.x = self.y = None
        self.iconimages = {} # cache of PhotoImage instances for icons

def destroy(self):
        for c in self.children[:]:
            self.children.remove(c)
            c.destroy()
        self.parent = None

def geticonimage(self, name):
        try:
            return self.iconimages[name]
        except KeyError:
            pass
        file, ext = os.path.splitext(name)
        ext = ext or ".gif"
        fullname = os.path.join(ICONDIR, file + ext)
        image = PhotoImage(master=self.canvas, file=fullname)
        self.iconimages[name] = image
        return image

def select(self, event=None):
        if self.selected:
            return
        self.deselectall()
        self.selected = True
        self.canvas.delete(self.image_id)
        self.drawicon()
        self.drawtext()

def deselect(self, event=None):
        if not self.selected:
            return
        self.selected = False
        self.canvas.delete(self.image_id)
        self.drawicon()
        self.drawtext()

def deselectall(self):
        if self.parent:
            self.parent.deselectall()
        else:
            self.deselecttree()

def deselecttree(self):
        if self.selected:
            self.deselect()
        for child in self.children:
            child.deselecttree()

def flip(self, event=None):
        if self.state == 'expanded':
            self.collapse()
        else:
            self.expand()
        self.item.OnDoubleClick()
        return "break"

def expand(self, event=None):
        if not self.item._IsExpandable():
            return
        if self.state != 'expanded':
            self.state = 'expanded'
            self.update()
            self.view()

def collapse(self, event=None):
        if self.state != 'collapsed':
            self.state = 'collapsed'
            self.update()

def view(self):
        top = self.y - 2
        bottom = self.lastvisiblechild().y + 17
        height = bottom - top
        visible_top = self.canvas.canvasy(0)
        visible_height = self.canvas.winfo_height()
        visible_bottom = self.canvas.canvasy(visible_height)
        if visible_top <= top and bottom <= visible_bottom:
            return
        x0, y0, x1, y1 = self.canvas._getints(self.canvas['scrollregion'])
        if top >= visible_top and height <= visible_height:
            fraction = top + height - visible_height
        else:
            fraction = top
        fraction = float(fraction) / y1
        self.canvas.yview_moveto(fraction)

def lastvisiblechild(self):
        if self.children and self.state == 'expanded':
            return self.children[-1].lastvisiblechild()
        else:
            return self

def update(self):
        if self.parent:
            self.parent.update()
        else:
            oldcursor = self.canvas['cursor']
            self.canvas['cursor'] = "watch"
            self.canvas.update()
            self.canvas.delete(ALL)     # XXX could be more subtle
            self.draw(7, 2)
            x0, y0, x1, y1 = self.canvas.bbox(ALL)
            self.canvas.configure(scrollregion=(0, 0, x1, y1))
            self.canvas['cursor'] = oldcursor

def draw(self, x, y):
        # XXX This hard-codes too many geometry constants!
        dy = 20
        self.x, self.y = x, y
        self.drawicon()
        self.drawtext()
        if self.state != 'expanded':
            return y + dy
        # draw children
        if not self.children:
            sublist = self.item._GetSubList()
            if not sublist:
                # _IsExpandable() was mistaken; that's allowed
                return y+17
            for item in sublist:
                child = self.__class__(self.canvas, self, item)
                self.children.append(child)
        cx = x+20
        cy = y + dy
        cylast = 0
        for child in self.children:
            cylast = cy
            self.canvas.create_line(x+9, cy+7, cx, cy+7, fill="gray50")
            cy = child.draw(cx, cy)
            if child.item._IsExpandable():
                if child.state == 'expanded':
                    iconname = "minusnode"
                    callback = child.collapse
                else:
                    iconname = "plusnode"
                    callback = child.expand
                image = self.geticonimage(iconname)
                id = self.canvas.create_image(x+9, cylast+7, image=image)
                # XXX This leaks bindings until canvas is deleted:
                self.canvas.tag_bind(id, "<1>", callback)
                self.canvas.tag_bind(id, "<Double-1>", lambda x: None)
        id = self.canvas.create_line(x+9, y+10, x+9, cylast+7,
            ##stipple="gray50",     # XXX Seems broken in Tk 8.0.x
            fill="gray50")
        self.canvas.tag_lower(id) # XXX .lower(id) before Python 1.5.2
        return cy

def drawicon(self):
        if self.selected:
            imagename = (self.item.GetSelectedIconName() or
                         self.item.GetIconName() or
                         "openfolder")
        else:
            imagename = self.item.GetIconName() or "folder"
        image = self.geticonimage(imagename)
        id = self.canvas.create_image(self.x, self.y, anchor="nw", image=image)
        self.image_id = id
        self.canvas.tag_bind(id, "<1>", self.select)
        self.canvas.tag_bind(id, "<Double-1>", self.flip)

def drawtext(self):
        textx = self.x+20-1
        texty = self.y-4
        labeltext = self.item.GetLabelText()
        if labeltext:
            id = self.canvas.create_text(textx, texty, anchor="nw",
                                         text=labeltext)
            self.canvas.tag_bind(id, "<1>", self.select)
            self.canvas.tag_bind(id, "<Double-1>", self.flip)
            x0, y0, x1, y1 = self.canvas.bbox(id)
            textx = max(x1, 200) + 10
        text = self.item.GetText() or "<no text>"
        try:
            self.entry
        except AttributeError:
            pass
        else:
            self.edit_finish()
        try:
            self.label
        except AttributeError:
            # padding carefully selected (on Windows) to match Entry widget:
            self.label = Label(self.canvas, text=text, bd=0, padx=2, pady=2)
        theme = idleConf.CurrentTheme()
        if self.selected:
            self.label.configure(idleConf.GetHighlight(theme, 'hilite'))
        else:
            self.label.configure(idleConf.GetHighlight(theme, 'normal'))
        id = self.canvas.create_window(textx, texty,
                                       anchor="nw", window=self.label)
        self.label.bind("<1>", self.select_or_edit)
        self.label.bind("<Double-1>", self.flip)
        self.text_id = id

def select_or_edit(self, event=None):
        if self.selected and self.item.IsEditable():
            self.edit(event)
        else:
            self.select(event)

def edit(self, event=None):
        self.entry = Entry(self.label, bd=0, highlightthickness=1, width=0)
        self.entry.insert(0, self.label['text'])
        self.entry.selection_range(0, END)
        self.entry.pack(ipadx=5)
        self.entry.focus_set()
        self.entry.bind("<Return>", self.edit_finish)
        self.entry.bind("<Escape>", self.edit_cancel)

def edit_finish(self, event=None):
        try:
            entry = self.entry
            del self.entry
        except AttributeError:
            return
        text = entry.get()
        entry.destroy()
        if text and text != self.item.GetText():
            self.item.SetText(text)
        text = self.item.GetText()
        self.label['text'] = text
        self.drawtext()
        self.canvas.focus_set()

def edit_cancel(self, event=None):
        try:
            entry = self.entry
            del self.entry
        except AttributeError:
            return
        entry.destroy()
        self.drawtext()
        self.canvas.focus_set()

class TreeItem:

"""Abstract class representing tree items.

Methods should typically be overridden, otherwise a default action
    is used.

"""

def __init__(self):
        """Constructor.  Do whatever you need to do."""

def GetText(self):
        """Return text string to display."""

def GetLabelText(self):
        """Return label text string to display in front of text (if any)."""

expandable = None

def _IsExpandable(self):
        """Do not override!  Called by TreeNode."""
        if self.expandable is None:
            self.expandable = self.IsExpandable()
        return self.expandable

def IsExpandable(self):
        """Return whether there are subitems."""
        return 1

def _GetSubList(self):
        """Do not override!  Called by TreeNode."""
        if not self.IsExpandable():
            return []
        sublist = self.GetSubList()
        if not sublist:
            self.expandable = 0
        return sublist

def IsEditable(self):
        """Return whether the item's text may be edited."""

def SetText(self, text):
        """Change the item's text (if it is editable)."""

def GetIconName(self):
        """Return name of icon to be displayed normally."""

def GetSelectedIconName(self):
        """Return name of icon to be displayed when selected."""

def GetSubList(self):
        """Return list of items forming sublist."""

def OnDoubleClick(self):
        """Called on a double-click on the item."""

# Example application

class FileTreeItem(TreeItem):

"""Example TreeItem subclass -- browse the file system."""

def __init__(self, path):
        self.path = path

def GetText(self):
        return os.path.basename(self.path) or self.path

def IsEditable(self):
        return os.path.basename(self.path) != ""

def SetText(self, text):
        newpath = os.path.dirname(self.path)
        newpath = os.path.join(newpath, text)
        if os.path.dirname(newpath) != os.path.dirname(self.path):
            return
        try:
            os.rename(self.path, newpath)
            self.path = newpath
        except OSError:
            pass

def GetIconName(self):
        if not self.IsExpandable():
            return "python" # XXX wish there was a "file" icon

def IsExpandable(self):
        return os.path.isdir(self.path)

def GetSubList(self):
        try:
            names = os.listdir(self.path)
        except OSError:
            return []
        names.sort(key = os.path.normcase)
        sublist = []
        for name in names:
            item = FileTreeItem(os.path.join(self.path, name))
            sublist.append(item)
        return sublist

# A canvas widget with scroll bars and some useful bindings

class ScrolledCanvas:
    def __init__(self, master, **opts):
        if 'yscrollincrement' not in opts:
            opts['yscrollincrement'] = 17
        self.master = master
        self.frame = Frame(master)
        self.frame.rowconfigure(0, weight=1)
        self.frame.columnconfigure(0, weight=1)
        self.canvas = Canvas(self.frame, **opts)
        self.canvas.grid(row=0, column=0, sticky="nsew")
        self.vbar = Scrollbar(self.frame, name="vbar")
        self.vbar.grid(row=0, column=1, sticky="nse")
        self.hbar = Scrollbar(self.frame, name="hbar", orient="horizontal")
        self.hbar.grid(row=1, column=0, sticky="ews")
        self.canvas['yscrollcommand'] = self.vbar.set
        self.vbar['command'] = self.canvas.yview
        self.canvas['xscrollcommand'] = self.hbar.set
        self.hbar['command'] = self.canvas.xview
        self.canvas.bind("<Key-Prior>", self.page_up)
        self.canvas.bind("<Key-Next>", self.page_down)
        self.canvas.bind("<Key-Up>", self.unit_up)
        self.canvas.bind("<Key-Down>", self.unit_down)
        #if isinstance(master, Toplevel) or isinstance(master, Tk):
        self.canvas.bind("<Alt-Key-2>", self.zoom_height)
        self.canvas.focus_set()
    def page_up(self, event):
        self.canvas.yview_scroll(-1, "page")
        return "break"
    def page_down(self, event):
        self.canvas.yview_scroll(1, "page")
        return "break"
    def unit_up(self, event):
        self.canvas.yview_scroll(-1, "unit")
        return "break"
    def unit_down(self, event):
        self.canvas.yview_scroll(1, "unit")
        return "break"
    def zoom_height(self, event):
        zoomheight.zoom_height(self.master)
        return "break"

def _tree_widget(parent):  # htest #
    top = Toplevel(parent)
    x, y = map(int, parent.geometry().split('+')[1:])
    top.geometry("+%d+%d" % (x+50, y+175))
    sc = ScrolledCanvas(top, bg="white", highlightthickness=0, takefocus=1)
    sc.frame.pack(expand=1, fill="both", side=LEFT)
    item = FileTreeItem(ICONDIR)
    node = TreeNode(sc.canvas, None, item)
    node.expand()

if __name__ == '__main__':
    from unittest import main
    main('idlelib.idle_test.test_tree', verbosity=2, exit=False)

from idlelib.idle_test.htest import run
    run(_tree_widget)

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Editing: tree.py

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