| 1 | n/a | # XXX TO DO: |
|---|
| 2 | n/a | # - popup menu |
|---|
| 3 | n/a | # - support partial or total redisplay |
|---|
| 4 | n/a | # - key bindings (instead of quick-n-dirty bindings on Canvas): |
|---|
| 5 | n/a | # - up/down arrow keys to move focus around |
|---|
| 6 | n/a | # - ditto for page up/down, home/end |
|---|
| 7 | n/a | # - left/right arrows to expand/collapse & move out/in |
|---|
| 8 | n/a | # - more doc strings |
|---|
| 9 | n/a | # - add icons for "file", "module", "class", "method"; better "python" icon |
|---|
| 10 | n/a | # - callback for selection??? |
|---|
| 11 | n/a | # - multiple-item selection |
|---|
| 12 | n/a | # - tooltips |
|---|
| 13 | n/a | # - redo geometry without magic numbers |
|---|
| 14 | n/a | # - keep track of object ids to allow more careful cleaning |
|---|
| 15 | n/a | # - optimize tree redraw after expand of subnode |
|---|
| 16 | n/a | |
|---|
| 17 | n/a | import os |
|---|
| 18 | n/a | from tkinter import * |
|---|
| 19 | n/a | |
|---|
| 20 | n/a | from idlelib import ZoomHeight |
|---|
| 21 | n/a | from idlelib.configHandler import idleConf |
|---|
| 22 | n/a | |
|---|
| 23 | n/a | ICONDIR = "Icons" |
|---|
| 24 | n/a | |
|---|
| 25 | n/a | # Look for Icons subdirectory in the same directory as this module |
|---|
| 26 | n/a | try: |
|---|
| 27 | n/a | _icondir = os.path.join(os.path.dirname(__file__), ICONDIR) |
|---|
| 28 | n/a | except NameError: |
|---|
| 29 | n/a | _icondir = ICONDIR |
|---|
| 30 | n/a | if os.path.isdir(_icondir): |
|---|
| 31 | n/a | ICONDIR = _icondir |
|---|
| 32 | n/a | elif not os.path.isdir(ICONDIR): |
|---|
| 33 | n/a | raise RuntimeError("can't find icon directory (%r)" % (ICONDIR,)) |
|---|
| 34 | n/a | |
|---|
| 35 | n/a | def listicons(icondir=ICONDIR): |
|---|
| 36 | n/a | """Utility to display the available icons.""" |
|---|
| 37 | n/a | root = Tk() |
|---|
| 38 | n/a | import glob |
|---|
| 39 | n/a | list = glob.glob(os.path.join(icondir, "*.gif")) |
|---|
| 40 | n/a | list.sort() |
|---|
| 41 | n/a | images = [] |
|---|
| 42 | n/a | row = column = 0 |
|---|
| 43 | n/a | for file in list: |
|---|
| 44 | n/a | name = os.path.splitext(os.path.basename(file))[0] |
|---|
| 45 | n/a | image = PhotoImage(file=file, master=root) |
|---|
| 46 | n/a | images.append(image) |
|---|
| 47 | n/a | label = Label(root, image=image, bd=1, relief="raised") |
|---|
| 48 | n/a | label.grid(row=row, column=column) |
|---|
| 49 | n/a | label = Label(root, text=name) |
|---|
| 50 | n/a | label.grid(row=row+1, column=column) |
|---|
| 51 | n/a | column = column + 1 |
|---|
| 52 | n/a | if column >= 10: |
|---|
| 53 | n/a | row = row+2 |
|---|
| 54 | n/a | column = 0 |
|---|
| 55 | n/a | root.images = images |
|---|
| 56 | n/a | |
|---|
| 57 | n/a | |
|---|
| 58 | n/a | class TreeNode: |
|---|
| 59 | n/a | |
|---|
| 60 | n/a | def __init__(self, canvas, parent, item): |
|---|
| 61 | n/a | self.canvas = canvas |
|---|
| 62 | n/a | self.parent = parent |
|---|
| 63 | n/a | self.item = item |
|---|
| 64 | n/a | self.state = 'collapsed' |
|---|
| 65 | n/a | self.selected = False |
|---|
| 66 | n/a | self.children = [] |
|---|
| 67 | n/a | self.x = self.y = None |
|---|
| 68 | n/a | self.iconimages = {} # cache of PhotoImage instances for icons |
|---|
| 69 | n/a | |
|---|
| 70 | n/a | def destroy(self): |
|---|
| 71 | n/a | for c in self.children[:]: |
|---|
| 72 | n/a | self.children.remove(c) |
|---|
| 73 | n/a | c.destroy() |
|---|
| 74 | n/a | self.parent = None |
|---|
| 75 | n/a | |
|---|
| 76 | n/a | def geticonimage(self, name): |
|---|
| 77 | n/a | try: |
|---|
| 78 | n/a | return self.iconimages[name] |
|---|
| 79 | n/a | except KeyError: |
|---|
| 80 | n/a | pass |
|---|
| 81 | n/a | file, ext = os.path.splitext(name) |
|---|
| 82 | n/a | ext = ext or ".gif" |
|---|
| 83 | n/a | fullname = os.path.join(ICONDIR, file + ext) |
|---|
| 84 | n/a | image = PhotoImage(master=self.canvas, file=fullname) |
|---|
| 85 | n/a | self.iconimages[name] = image |
|---|
| 86 | n/a | return image |
|---|
| 87 | n/a | |
|---|
| 88 | n/a | def select(self, event=None): |
|---|
| 89 | n/a | if self.selected: |
|---|
| 90 | n/a | return |
|---|
| 91 | n/a | self.deselectall() |
|---|
| 92 | n/a | self.selected = True |
|---|
| 93 | n/a | self.canvas.delete(self.image_id) |
|---|
| 94 | n/a | self.drawicon() |
|---|
| 95 | n/a | self.drawtext() |
|---|
| 96 | n/a | |
|---|
| 97 | n/a | def deselect(self, event=None): |
|---|
| 98 | n/a | if not self.selected: |
|---|
| 99 | n/a | return |
|---|
| 100 | n/a | self.selected = False |
|---|
| 101 | n/a | self.canvas.delete(self.image_id) |
|---|
| 102 | n/a | self.drawicon() |
|---|
| 103 | n/a | self.drawtext() |
|---|
| 104 | n/a | |
|---|
| 105 | n/a | def deselectall(self): |
|---|
| 106 | n/a | if self.parent: |
|---|
| 107 | n/a | self.parent.deselectall() |
|---|
| 108 | n/a | else: |
|---|
| 109 | n/a | self.deselecttree() |
|---|
| 110 | n/a | |
|---|
| 111 | n/a | def deselecttree(self): |
|---|
| 112 | n/a | if self.selected: |
|---|
| 113 | n/a | self.deselect() |
|---|
| 114 | n/a | for child in self.children: |
|---|
| 115 | n/a | child.deselecttree() |
|---|
| 116 | n/a | |
|---|
| 117 | n/a | def flip(self, event=None): |
|---|
| 118 | n/a | if self.state == 'expanded': |
|---|
| 119 | n/a | self.collapse() |
|---|
| 120 | n/a | else: |
|---|
| 121 | n/a | self.expand() |
|---|
| 122 | n/a | self.item.OnDoubleClick() |
|---|
| 123 | n/a | return "break" |
|---|
| 124 | n/a | |
|---|
| 125 | n/a | def expand(self, event=None): |
|---|
| 126 | n/a | if not self.item._IsExpandable(): |
|---|
| 127 | n/a | return |
|---|
| 128 | n/a | if self.state != 'expanded': |
|---|
| 129 | n/a | self.state = 'expanded' |
|---|
| 130 | n/a | self.update() |
|---|
| 131 | n/a | self.view() |
|---|
| 132 | n/a | |
|---|
| 133 | n/a | def collapse(self, event=None): |
|---|
| 134 | n/a | if self.state != 'collapsed': |
|---|
| 135 | n/a | self.state = 'collapsed' |
|---|
| 136 | n/a | self.update() |
|---|
| 137 | n/a | |
|---|
| 138 | n/a | def view(self): |
|---|
| 139 | n/a | top = self.y - 2 |
|---|
| 140 | n/a | bottom = self.lastvisiblechild().y + 17 |
|---|
| 141 | n/a | height = bottom - top |
|---|
| 142 | n/a | visible_top = self.canvas.canvasy(0) |
|---|
| 143 | n/a | visible_height = self.canvas.winfo_height() |
|---|
| 144 | n/a | visible_bottom = self.canvas.canvasy(visible_height) |
|---|
| 145 | n/a | if visible_top <= top and bottom <= visible_bottom: |
|---|
| 146 | n/a | return |
|---|
| 147 | n/a | x0, y0, x1, y1 = self.canvas._getints(self.canvas['scrollregion']) |
|---|
| 148 | n/a | if top >= visible_top and height <= visible_height: |
|---|
| 149 | n/a | fraction = top + height - visible_height |
|---|
| 150 | n/a | else: |
|---|
| 151 | n/a | fraction = top |
|---|
| 152 | n/a | fraction = float(fraction) / y1 |
|---|
| 153 | n/a | self.canvas.yview_moveto(fraction) |
|---|
| 154 | n/a | |
|---|
| 155 | n/a | def lastvisiblechild(self): |
|---|
| 156 | n/a | if self.children and self.state == 'expanded': |
|---|
| 157 | n/a | return self.children[-1].lastvisiblechild() |
|---|
| 158 | n/a | else: |
|---|
| 159 | n/a | return self |
|---|
| 160 | n/a | |
|---|
| 161 | n/a | def update(self): |
|---|
| 162 | n/a | if self.parent: |
|---|
| 163 | n/a | self.parent.update() |
|---|
| 164 | n/a | else: |
|---|
| 165 | n/a | oldcursor = self.canvas['cursor'] |
|---|
| 166 | n/a | self.canvas['cursor'] = "watch" |
|---|
| 167 | n/a | self.canvas.update() |
|---|
| 168 | n/a | self.canvas.delete(ALL) # XXX could be more subtle |
|---|
| 169 | n/a | self.draw(7, 2) |
|---|
| 170 | n/a | x0, y0, x1, y1 = self.canvas.bbox(ALL) |
|---|
| 171 | n/a | self.canvas.configure(scrollregion=(0, 0, x1, y1)) |
|---|
| 172 | n/a | self.canvas['cursor'] = oldcursor |
|---|
| 173 | n/a | |
|---|
| 174 | n/a | def draw(self, x, y): |
|---|
| 175 | n/a | # XXX This hard-codes too many geometry constants! |
|---|
| 176 | n/a | self.x, self.y = x, y |
|---|
| 177 | n/a | self.drawicon() |
|---|
| 178 | n/a | self.drawtext() |
|---|
| 179 | n/a | if self.state != 'expanded': |
|---|
| 180 | n/a | return y+17 |
|---|
| 181 | n/a | # draw children |
|---|
| 182 | n/a | if not self.children: |
|---|
| 183 | n/a | sublist = self.item._GetSubList() |
|---|
| 184 | n/a | if not sublist: |
|---|
| 185 | n/a | # _IsExpandable() was mistaken; that's allowed |
|---|
| 186 | n/a | return y+17 |
|---|
| 187 | n/a | for item in sublist: |
|---|
| 188 | n/a | child = self.__class__(self.canvas, self, item) |
|---|
| 189 | n/a | self.children.append(child) |
|---|
| 190 | n/a | cx = x+20 |
|---|
| 191 | n/a | cy = y+17 |
|---|
| 192 | n/a | cylast = 0 |
|---|
| 193 | n/a | for child in self.children: |
|---|
| 194 | n/a | cylast = cy |
|---|
| 195 | n/a | self.canvas.create_line(x+9, cy+7, cx, cy+7, fill="gray50") |
|---|
| 196 | n/a | cy = child.draw(cx, cy) |
|---|
| 197 | n/a | if child.item._IsExpandable(): |
|---|
| 198 | n/a | if child.state == 'expanded': |
|---|
| 199 | n/a | iconname = "minusnode" |
|---|
| 200 | n/a | callback = child.collapse |
|---|
| 201 | n/a | else: |
|---|
| 202 | n/a | iconname = "plusnode" |
|---|
| 203 | n/a | callback = child.expand |
|---|
| 204 | n/a | image = self.geticonimage(iconname) |
|---|
| 205 | n/a | id = self.canvas.create_image(x+9, cylast+7, image=image) |
|---|
| 206 | n/a | # XXX This leaks bindings until canvas is deleted: |
|---|
| 207 | n/a | self.canvas.tag_bind(id, "<1>", callback) |
|---|
| 208 | n/a | self.canvas.tag_bind(id, "<Double-1>", lambda x: None) |
|---|
| 209 | n/a | id = self.canvas.create_line(x+9, y+10, x+9, cylast+7, |
|---|
| 210 | n/a | ##stipple="gray50", # XXX Seems broken in Tk 8.0.x |
|---|
| 211 | n/a | fill="gray50") |
|---|
| 212 | n/a | self.canvas.tag_lower(id) # XXX .lower(id) before Python 1.5.2 |
|---|
| 213 | n/a | return cy |
|---|
| 214 | n/a | |
|---|
| 215 | n/a | def drawicon(self): |
|---|
| 216 | n/a | if self.selected: |
|---|
| 217 | n/a | imagename = (self.item.GetSelectedIconName() or |
|---|
| 218 | n/a | self.item.GetIconName() or |
|---|
| 219 | n/a | "openfolder") |
|---|
| 220 | n/a | else: |
|---|
| 221 | n/a | imagename = self.item.GetIconName() or "folder" |
|---|
| 222 | n/a | image = self.geticonimage(imagename) |
|---|
| 223 | n/a | id = self.canvas.create_image(self.x, self.y, anchor="nw", image=image) |
|---|
| 224 | n/a | self.image_id = id |
|---|
| 225 | n/a | self.canvas.tag_bind(id, "<1>", self.select) |
|---|
| 226 | n/a | self.canvas.tag_bind(id, "<Double-1>", self.flip) |
|---|
| 227 | n/a | |
|---|
| 228 | n/a | def drawtext(self): |
|---|
| 229 | n/a | textx = self.x+20-1 |
|---|
| 230 | n/a | texty = self.y-1 |
|---|
| 231 | n/a | labeltext = self.item.GetLabelText() |
|---|
| 232 | n/a | if labeltext: |
|---|
| 233 | n/a | id = self.canvas.create_text(textx, texty, anchor="nw", |
|---|
| 234 | n/a | text=labeltext) |
|---|
| 235 | n/a | self.canvas.tag_bind(id, "<1>", self.select) |
|---|
| 236 | n/a | self.canvas.tag_bind(id, "<Double-1>", self.flip) |
|---|
| 237 | n/a | x0, y0, x1, y1 = self.canvas.bbox(id) |
|---|
| 238 | n/a | textx = max(x1, 200) + 10 |
|---|
| 239 | n/a | text = self.item.GetText() or "<no text>" |
|---|
| 240 | n/a | try: |
|---|
| 241 | n/a | self.entry |
|---|
| 242 | n/a | except AttributeError: |
|---|
| 243 | n/a | pass |
|---|
| 244 | n/a | else: |
|---|
| 245 | n/a | self.edit_finish() |
|---|
| 246 | n/a | try: |
|---|
| 247 | n/a | label = self.label |
|---|
| 248 | n/a | except AttributeError: |
|---|
| 249 | n/a | # padding carefully selected (on Windows) to match Entry widget: |
|---|
| 250 | n/a | self.label = Label(self.canvas, text=text, bd=0, padx=2, pady=2) |
|---|
| 251 | n/a | theme = idleConf.GetOption('main','Theme','name') |
|---|
| 252 | n/a | if self.selected: |
|---|
| 253 | n/a | self.label.configure(idleConf.GetHighlight(theme, 'hilite')) |
|---|
| 254 | n/a | else: |
|---|
| 255 | n/a | self.label.configure(idleConf.GetHighlight(theme, 'normal')) |
|---|
| 256 | n/a | id = self.canvas.create_window(textx, texty, |
|---|
| 257 | n/a | anchor="nw", window=self.label) |
|---|
| 258 | n/a | self.label.bind("<1>", self.select_or_edit) |
|---|
| 259 | n/a | self.label.bind("<Double-1>", self.flip) |
|---|
| 260 | n/a | self.text_id = id |
|---|
| 261 | n/a | |
|---|
| 262 | n/a | def select_or_edit(self, event=None): |
|---|
| 263 | n/a | if self.selected and self.item.IsEditable(): |
|---|
| 264 | n/a | self.edit(event) |
|---|
| 265 | n/a | else: |
|---|
| 266 | n/a | self.select(event) |
|---|
| 267 | n/a | |
|---|
| 268 | n/a | def edit(self, event=None): |
|---|
| 269 | n/a | self.entry = Entry(self.label, bd=0, highlightthickness=1, width=0) |
|---|
| 270 | n/a | self.entry.insert(0, self.label['text']) |
|---|
| 271 | n/a | self.entry.selection_range(0, END) |
|---|
| 272 | n/a | self.entry.pack(ipadx=5) |
|---|
| 273 | n/a | self.entry.focus_set() |
|---|
| 274 | n/a | self.entry.bind("<Return>", self.edit_finish) |
|---|
| 275 | n/a | self.entry.bind("<Escape>", self.edit_cancel) |
|---|
| 276 | n/a | |
|---|
| 277 | n/a | def edit_finish(self, event=None): |
|---|
| 278 | n/a | try: |
|---|
| 279 | n/a | entry = self.entry |
|---|
| 280 | n/a | del self.entry |
|---|
| 281 | n/a | except AttributeError: |
|---|
| 282 | n/a | return |
|---|
| 283 | n/a | text = entry.get() |
|---|
| 284 | n/a | entry.destroy() |
|---|
| 285 | n/a | if text and text != self.item.GetText(): |
|---|
| 286 | n/a | self.item.SetText(text) |
|---|
| 287 | n/a | text = self.item.GetText() |
|---|
| 288 | n/a | self.label['text'] = text |
|---|
| 289 | n/a | self.drawtext() |
|---|
| 290 | n/a | self.canvas.focus_set() |
|---|
| 291 | n/a | |
|---|
| 292 | n/a | def edit_cancel(self, event=None): |
|---|
| 293 | n/a | try: |
|---|
| 294 | n/a | entry = self.entry |
|---|
| 295 | n/a | del self.entry |
|---|
| 296 | n/a | except AttributeError: |
|---|
| 297 | n/a | return |
|---|
| 298 | n/a | entry.destroy() |
|---|
| 299 | n/a | self.drawtext() |
|---|
| 300 | n/a | self.canvas.focus_set() |
|---|
| 301 | n/a | |
|---|
| 302 | n/a | |
|---|
| 303 | n/a | class TreeItem: |
|---|
| 304 | n/a | |
|---|
| 305 | n/a | """Abstract class representing tree items. |
|---|
| 306 | n/a | |
|---|
| 307 | n/a | Methods should typically be overridden, otherwise a default action |
|---|
| 308 | n/a | is used. |
|---|
| 309 | n/a | |
|---|
| 310 | n/a | """ |
|---|
| 311 | n/a | |
|---|
| 312 | n/a | def __init__(self): |
|---|
| 313 | n/a | """Constructor. Do whatever you need to do.""" |
|---|
| 314 | n/a | |
|---|
| 315 | n/a | def GetText(self): |
|---|
| 316 | n/a | """Return text string to display.""" |
|---|
| 317 | n/a | |
|---|
| 318 | n/a | def GetLabelText(self): |
|---|
| 319 | n/a | """Return label text string to display in front of text (if any).""" |
|---|
| 320 | n/a | |
|---|
| 321 | n/a | expandable = None |
|---|
| 322 | n/a | |
|---|
| 323 | n/a | def _IsExpandable(self): |
|---|
| 324 | n/a | """Do not override! Called by TreeNode.""" |
|---|
| 325 | n/a | if self.expandable is None: |
|---|
| 326 | n/a | self.expandable = self.IsExpandable() |
|---|
| 327 | n/a | return self.expandable |
|---|
| 328 | n/a | |
|---|
| 329 | n/a | def IsExpandable(self): |
|---|
| 330 | n/a | """Return whether there are subitems.""" |
|---|
| 331 | n/a | return 1 |
|---|
| 332 | n/a | |
|---|
| 333 | n/a | def _GetSubList(self): |
|---|
| 334 | n/a | """Do not override! Called by TreeNode.""" |
|---|
| 335 | n/a | if not self.IsExpandable(): |
|---|
| 336 | n/a | return [] |
|---|
| 337 | n/a | sublist = self.GetSubList() |
|---|
| 338 | n/a | if not sublist: |
|---|
| 339 | n/a | self.expandable = 0 |
|---|
| 340 | n/a | return sublist |
|---|
| 341 | n/a | |
|---|
| 342 | n/a | def IsEditable(self): |
|---|
| 343 | n/a | """Return whether the item's text may be edited.""" |
|---|
| 344 | n/a | |
|---|
| 345 | n/a | def SetText(self, text): |
|---|
| 346 | n/a | """Change the item's text (if it is editable).""" |
|---|
| 347 | n/a | |
|---|
| 348 | n/a | def GetIconName(self): |
|---|
| 349 | n/a | """Return name of icon to be displayed normally.""" |
|---|
| 350 | n/a | |
|---|
| 351 | n/a | def GetSelectedIconName(self): |
|---|
| 352 | n/a | """Return name of icon to be displayed when selected.""" |
|---|
| 353 | n/a | |
|---|
| 354 | n/a | def GetSubList(self): |
|---|
| 355 | n/a | """Return list of items forming sublist.""" |
|---|
| 356 | n/a | |
|---|
| 357 | n/a | def OnDoubleClick(self): |
|---|
| 358 | n/a | """Called on a double-click on the item.""" |
|---|
| 359 | n/a | |
|---|
| 360 | n/a | |
|---|
| 361 | n/a | # Example application |
|---|
| 362 | n/a | |
|---|
| 363 | n/a | class FileTreeItem(TreeItem): |
|---|
| 364 | n/a | |
|---|
| 365 | n/a | """Example TreeItem subclass -- browse the file system.""" |
|---|
| 366 | n/a | |
|---|
| 367 | n/a | def __init__(self, path): |
|---|
| 368 | n/a | self.path = path |
|---|
| 369 | n/a | |
|---|
| 370 | n/a | def GetText(self): |
|---|
| 371 | n/a | return os.path.basename(self.path) or self.path |
|---|
| 372 | n/a | |
|---|
| 373 | n/a | def IsEditable(self): |
|---|
| 374 | n/a | return os.path.basename(self.path) != "" |
|---|
| 375 | n/a | |
|---|
| 376 | n/a | def SetText(self, text): |
|---|
| 377 | n/a | newpath = os.path.dirname(self.path) |
|---|
| 378 | n/a | newpath = os.path.join(newpath, text) |
|---|
| 379 | n/a | if os.path.dirname(newpath) != os.path.dirname(self.path): |
|---|
| 380 | n/a | return |
|---|
| 381 | n/a | try: |
|---|
| 382 | n/a | os.rename(self.path, newpath) |
|---|
| 383 | n/a | self.path = newpath |
|---|
| 384 | n/a | except OSError: |
|---|
| 385 | n/a | pass |
|---|
| 386 | n/a | |
|---|
| 387 | n/a | def GetIconName(self): |
|---|
| 388 | n/a | if not self.IsExpandable(): |
|---|
| 389 | n/a | return "python" # XXX wish there was a "file" icon |
|---|
| 390 | n/a | |
|---|
| 391 | n/a | def IsExpandable(self): |
|---|
| 392 | n/a | return os.path.isdir(self.path) |
|---|
| 393 | n/a | |
|---|
| 394 | n/a | def GetSubList(self): |
|---|
| 395 | n/a | try: |
|---|
| 396 | n/a | names = os.listdir(self.path) |
|---|
| 397 | n/a | except OSError: |
|---|
| 398 | n/a | return [] |
|---|
| 399 | n/a | names.sort(key = os.path.normcase) |
|---|
| 400 | n/a | sublist = [] |
|---|
| 401 | n/a | for name in names: |
|---|
| 402 | n/a | item = FileTreeItem(os.path.join(self.path, name)) |
|---|
| 403 | n/a | sublist.append(item) |
|---|
| 404 | n/a | return sublist |
|---|
| 405 | n/a | |
|---|
| 406 | n/a | |
|---|
| 407 | n/a | # A canvas widget with scroll bars and some useful bindings |
|---|
| 408 | n/a | |
|---|
| 409 | n/a | class ScrolledCanvas: |
|---|
| 410 | n/a | def __init__(self, master, **opts): |
|---|
| 411 | n/a | if 'yscrollincrement' not in opts: |
|---|
| 412 | n/a | opts['yscrollincrement'] = 17 |
|---|
| 413 | n/a | self.master = master |
|---|
| 414 | n/a | self.frame = Frame(master) |
|---|
| 415 | n/a | self.frame.rowconfigure(0, weight=1) |
|---|
| 416 | n/a | self.frame.columnconfigure(0, weight=1) |
|---|
| 417 | n/a | self.canvas = Canvas(self.frame, **opts) |
|---|
| 418 | n/a | self.canvas.grid(row=0, column=0, sticky="nsew") |
|---|
| 419 | n/a | self.vbar = Scrollbar(self.frame, name="vbar") |
|---|
| 420 | n/a | self.vbar.grid(row=0, column=1, sticky="nse") |
|---|
| 421 | n/a | self.hbar = Scrollbar(self.frame, name="hbar", orient="horizontal") |
|---|
| 422 | n/a | self.hbar.grid(row=1, column=0, sticky="ews") |
|---|
| 423 | n/a | self.canvas['yscrollcommand'] = self.vbar.set |
|---|
| 424 | n/a | self.vbar['command'] = self.canvas.yview |
|---|
| 425 | n/a | self.canvas['xscrollcommand'] = self.hbar.set |
|---|
| 426 | n/a | self.hbar['command'] = self.canvas.xview |
|---|
| 427 | n/a | self.canvas.bind("<Key-Prior>", self.page_up) |
|---|
| 428 | n/a | self.canvas.bind("<Key-Next>", self.page_down) |
|---|
| 429 | n/a | self.canvas.bind("<Key-Up>", self.unit_up) |
|---|
| 430 | n/a | self.canvas.bind("<Key-Down>", self.unit_down) |
|---|
| 431 | n/a | #if isinstance(master, Toplevel) or isinstance(master, Tk): |
|---|
| 432 | n/a | self.canvas.bind("<Alt-Key-2>", self.zoom_height) |
|---|
| 433 | n/a | self.canvas.focus_set() |
|---|
| 434 | n/a | def page_up(self, event): |
|---|
| 435 | n/a | self.canvas.yview_scroll(-1, "page") |
|---|
| 436 | n/a | return "break" |
|---|
| 437 | n/a | def page_down(self, event): |
|---|
| 438 | n/a | self.canvas.yview_scroll(1, "page") |
|---|
| 439 | n/a | return "break" |
|---|
| 440 | n/a | def unit_up(self, event): |
|---|
| 441 | n/a | self.canvas.yview_scroll(-1, "unit") |
|---|
| 442 | n/a | return "break" |
|---|
| 443 | n/a | def unit_down(self, event): |
|---|
| 444 | n/a | self.canvas.yview_scroll(1, "unit") |
|---|
| 445 | n/a | return "break" |
|---|
| 446 | n/a | def zoom_height(self, event): |
|---|
| 447 | n/a | ZoomHeight.zoom_height(self.master) |
|---|
| 448 | n/a | return "break" |
|---|
| 449 | n/a | |
|---|
| 450 | n/a | |
|---|
| 451 | n/a | # Testing functions |
|---|
| 452 | n/a | |
|---|
| 453 | n/a | def test(): |
|---|
| 454 | n/a | from idlelib import PyShell |
|---|
| 455 | n/a | root = Toplevel(PyShell.root) |
|---|
| 456 | n/a | root.configure(bd=0, bg="yellow") |
|---|
| 457 | n/a | root.focus_set() |
|---|
| 458 | n/a | sc = ScrolledCanvas(root, bg="white", highlightthickness=0, takefocus=1) |
|---|
| 459 | n/a | sc.frame.pack(expand=1, fill="both") |
|---|
| 460 | n/a | item = FileTreeItem("C:/windows/desktop") |
|---|
| 461 | n/a | node = TreeNode(sc.canvas, None, item) |
|---|
| 462 | n/a | node.expand() |
|---|
| 463 | n/a | |
|---|
| 464 | n/a | def test2(): |
|---|
| 465 | n/a | # test w/o scrolling canvas |
|---|
| 466 | n/a | root = Tk() |
|---|
| 467 | n/a | root.configure(bd=0) |
|---|
| 468 | n/a | canvas = Canvas(root, bg="white", highlightthickness=0) |
|---|
| 469 | n/a | canvas.pack(expand=1, fill="both") |
|---|
| 470 | n/a | item = FileTreeItem(os.curdir) |
|---|
| 471 | n/a | node = TreeNode(canvas, None, item) |
|---|
| 472 | n/a | node.update() |
|---|
| 473 | n/a | canvas.focus_set() |
|---|
| 474 | n/a | |
|---|
| 475 | n/a | if __name__ == '__main__': |
|---|
| 476 | n/a | test() |
|---|
