phoenix_title wx.lib.agw.thumbnailctrl

ThumbnailCtrl is a widget that can be used to display a series of images in a “thumbnail” format.


ThumbnailCtrl is a widget that can be used to display a series of images in a “thumbnail” format; it mimics, for example, the windows explorer behavior when you select the “view thumbnails” option. Basically, by specifying a folder that contains some image files, the files in the folder are displayed as miniature versions of the actual images in a ScrolledWindow.

The code is partly based on wxVillaLib, a wxWidgets implementation of this control. However, ThumbnailCtrl wouldn’t have been so fast and complete without the suggestions and hints from Peter Damoc. So, if he accepts the mention, this control is his as much as mine.

ThumbnailCtrl is more of a demo application than a widget. The ScrolledThumbnail is a freestanding widget, accepting a list of Thumb objects which represent files and which returns a thumbnail on request. Thumb can be extended by the user to provide thumbnails for other data types, such as text, audio, video, or PDF files.


Usage example:

import os

import wx
import wx.lib.agw.thumbnailctrl as TC

class MyFrame(wx.Frame):

    def __init__(self, parent):

        wx.Frame.__init__(self, parent, -1, "ThumbnailCtrl Demo")

        panel = wx.Panel(self)

        sizer = wx.BoxSizer(wx.VERTICAL)

        thumbnail = TC.ThumbnailCtrl(panel, imagehandler=TC.NativeImageHandler)
        sizer.Add(thumbnail, 1, wx.EXPAND | wx.ALL, 10)


# our normal wxApp-derived class, as usual

app = wx.App(0)

frame = MyFrame(None)


Methods and Settings

With ThumbnailCtrl you can:

  • Create different thumbnail outlines (none, images only, full, etc…);

  • Highlight thumbnails on mouse hovering;

  • Show/hide file names below thumbnails;

  • Change thumbnail caption font;

  • Zoom in/out thumbnails (done via Ctrl key + mouse wheel or with + and - chars, with zoom factor value customizable);

  • Rotate thumbnails with these specifications:

    1. d key rotates 90 degrees clockwise;

    2. s key rotates 90 degrees counter-clockwise;

    3. a key rotates 180 degrees.

  • Delete files/thumbnails (via the del key);

  • Drag and drop thumbnails from ThumbnailCtrl to whatever application you want;

  • Use local (when at least one thumbnail is selected) or global (no need for thumbnail selection) popup menus;

  • Show/hide a ComboBox at the top of ThumbnailCtrl: this combobox contains working directory information and it has history entries;

  • possibility to show tooltips on thumbnails, which display file information (like file name, size, last modification date and thumbnail size).


Using highlight thumbnails on mouse hovering may be slow on slower computers.

Window Styles

No particular window styles are available for this class.

Events Processing

This class processes the following events:

Event Name



The user has double-clicked on a thumbnail.


The mouse cursor is hovering over a thumbnail.


The user has changed the selected thumbnail.


The thumbnail of an image has changed. Used internally.


A key was typed in the widget

License And Version

ThumbnailCtrl is distributed under the wxPython license.

Latest revision: Michael Eager @ 26 Sep 2020

Version 1.0

function_summary Functions Summary


Convert paths to the platform-specific separator.

class_summary Classes Summary


ScrolledTextDialog is a dialog widget which displays a scrolled


ThumbnailCtrl is a widget that can be used to display a series of images in



Convert paths to the platform-specific separator.


path – the path to convert.