FM / idlelib

/opt/alt/python37/lib64/python3.7/idlelib/

/opt/alt/python37/lib64/python3.7/idlelib

Name	Size	Mode	Actions
Icons/	-	0755	rm
idle_test/	-	0755	rm
__pycache__/	-	0755	rm
autocomplete.py	8954	0644	edit dl rm
autocomplete_w.py	20109	0644	edit dl rm
autoexpand.py	3216	0644	edit dl rm
browser.py	8314	0644	edit dl rm
calltip.py	6318	0644	edit dl rm
calltip_w.py	7158	0644	edit dl rm
ChangeLog	56360	0644	edit dl rm
codecontext.py	11326	0644	edit dl rm
colorizer.py	12992	0644	edit dl rm
config-extensions.def	2266	0644	edit dl rm
config-highlight.def	2864	0644	edit dl rm
config-keys.def	10910	0644	edit dl rm
config-main.def	3168	0644	edit dl rm
config.py	38173	0644	edit dl rm
configdialog.py	104524	0644	edit dl rm
config_key.py	14465	0644	edit dl rm
CREDITS.txt	1866	0644	edit dl rm
debugger.py	19104	0644	edit dl rm
debugger_r.py	12140	0644	edit dl rm
debugobj.py	4055	0644	edit dl rm
debugobj_r.py	1082	0644	edit dl rm
delegator.py	1043	0644	edit dl rm
dynoption.py	2017	0644	edit dl rm
editor.py	65614	0644	edit dl rm
extend.txt	3642	0644	edit dl rm
filelist.py	3896	0644	edit dl rm
format.py	15777	0644	edit dl rm
grep.py	7479	0644	edit dl rm
help.html	62214	0644	edit dl rm
help.py	11734	0644	edit dl rm
help_about.py	8981	0644	edit dl rm
history.py	4043	0644	edit dl rm
HISTORY.txt	10312	0644	edit dl rm
hyperparser.py	12883	0644	edit dl rm
idle.py	454	0644	edit dl rm
idle.pyw	570	0644	edit dl rm
iomenu.py	20632	0644	edit dl rm
macosx.py	9662	0644	edit dl rm
mainmenu.py	3918	0644	edit dl rm
multicall.py	18648	0644	edit dl rm
NEWS.txt	48791	0644	edit dl rm
NEWS2x.txt	27172	0644	edit dl rm
outwin.py	5788	0644	edit dl rm
parenmatch.py	7204	0644	edit dl rm
pathbrowser.py	3193	0644	edit dl rm
percolator.py	3130	0644	edit dl rm
pyparse.py	19947	0644	edit dl rm
pyshell.py	57247	0755	edit dl rm
query.py	14898	0644	edit dl rm
README.txt	9599	0644	edit dl rm
redirector.py	6875	0644	edit dl rm
replace.py	9889	0644	edit dl rm
rpc.py	21137	0644	edit dl rm
run.py	20293	0644	edit dl rm
runscript.py	8781	0644	edit dl rm
scrolledlist.py	4465	0644	edit dl rm
search.py	5566	0644	edit dl rm
searchbase.py	7537	0644	edit dl rm
searchengine.py	7472	0644	edit dl rm
sidebar.py	13585	0644	edit dl rm
squeezer.py	12840	0644	edit dl rm
stackviewer.py	4454	0644	edit dl rm
statusbar.py	1441	0644	edit dl rm
textview.py	6813	0644	edit dl rm
TODO.txt	8478	0644	edit dl rm
tooltip.py	6565	0644	edit dl rm
tree.py	16357	0644	edit dl rm
undo.py	11046	0644	edit dl rm
window.py	2616	0644	edit dl rm
zoomheight.py	4203	0644	edit dl rm
zzdummy.py	961	0644	edit dl rm
__init__.py	396	0644	edit dl rm
__main__.py	159	0644	edit dl rm

Edit: /opt/alt/python37/lib64/python3.7/idlelib/tree.py (16357B)

# 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 Frame, 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

def wheel_event(event, widget=None):
    """Handle scrollwheel event.

For wheel up, event.delta = 120*n on Windows, -1*n on darwin,
    where n can be > 1 if one scrolls fast.  Flicking the wheel
    generates up to maybe 20 events with n up to 10 or more 1.
    Macs use wheel down (delta = 1*n) to scroll up, so positive
    delta means to scroll up on both systems.

X-11 sends Control-Button-4,5 events instead.

The widget parameter is needed so browser label bindings can pass
    the underlying canvas.

This function depends on widget.yview to not be overridden by
    a subclass.
    """
    up = {EventType.MouseWheel: event.delta > 0,
          EventType.ButtonPress: event.num == 4}
    lines = -5 if up[event.type] else 5
    widget = event.widget if widget is None else widget
    widget.yview(SCROLL, lines, 'units')
    return 'break'

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.label.bind("<MouseWheel>", lambda e: wheel_event(e, self.canvas))
        self.label.bind("<Button-4>", lambda e: wheel_event(e, self.canvas))
        self.label.bind("<Button-5>", lambda e: wheel_event(e, self.canvas))
        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)
        self.canvas.bind("<MouseWheel>", wheel_event)
        self.canvas.bind("<Button-4>", wheel_event)
        self.canvas.bind("<Button-5>", wheel_event)
        #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)

cmd: