Difference between revisions of "VirtualTreeview"

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(Dependencies / System Requirements)
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=== Download ===
 
=== Download ===
The new releases can be found at
 
[http://sourceforge.net/projects/lazarus-ccr/files/VirtualTreeView%20(New%20Port) Lazarus CCR]
 
  
The old releases can be found at [http://sourceforge.net/projects/lazarus-ccr/files/Virtual%20Treeview/ Lazarus CCR].
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See the project [https://github.com/blikblum/VirtualTreeView-Lazarus/releases releases page]
  
 
=== SVN ===
 
=== SVN ===

Revision as of 12:32, 3 June 2016

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About

VirtualTreeview is a treeview control built from ground up.

Its main characteristics are :

  • it is extremely fast. Adding one million nodes takes only ~700 milliseconds
  • very small memory foot print. by only allocating about 60 bytes per node
  • optimized for high speed access. It takes as few as 0.5 seconds to traverse one million nodes
  • Multiselection is supported
  • Drawing the entire tree to a bitmap or the printer is supported
  • fixed background image can be used
  • Hot style for nodes is supported
  • Nodes can have individual heights
  • Sorting via compare callback
  • Support for unicode
  • Multiple columns are supported
  • ... and many more

This component was designed for cross-platform applications.

Anivt.gif

Author

Author: Mike Lischke
Old LCL Port: Joerg Thaler,Christian Ulrich
New LCL Port: Luiz Américo

License

LGPL or Mozilla Public Licence 1.1

Download

See the project releases page

SVN

you can checkout the actual source from

https://lazarus-ccr.svn.sourceforge.net/svnroot/lazarus-ccr/components/virtualtreeview-new/

commandline to do this is

svn co https://lazarus-ccr.svn.sourceforge.net/svnroot/lazarus-ccr/components/virtualtreeview-new/

Bug report / Feature request

Bug Tracker project Lazarus-CCR, category Virtual Treeview

Change Log

  • 20/10/2012 - 4.8.7 LCL R2 - Compatibility with Lazarus 1.0 + 64 bit support
  • 18/02/2011 - 4.8.7 LCL R1 - Sync with 4.8 branch + misc fixes
  • 11/02/2010 - 4.8.6 - First stable release of the new port

Dependencies / System Requirements

Status: Stable Tested on Windows, Linux. Needs testing on MacOS.

Known Issues

Installation

  • If new to Lazarus, read Install Packages
  • Extract the LCL Extensions package to a directory (lazarus\components\lclextensions or other of your preference)
  • Extract the Virtual Treeview package to a directory (lazarus\components\virtualtreeview or other of your preference)
  • Open lclextensions_package.lpk in LCL Extensions directory and click "Use / Add to project"
  • Open virtualtreeview_package.lpk in Virtual Treeview and click "Use / Install". Rebuild the IDE

Help

Can be found at VirtualTreeview Main Page (search for help in chm format).

Example code can be found here: VirtualTreeview Example for Lazarus