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Adding progress bars to a list control

, 2 Sep 2001
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A simple extension that allows you to add a progress indicator as an item in a list control
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Sample Image - napster.jpg

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Introduction

This code shows how to add a progress control to a listview control. If you want to use this code, copy listctrlex.h and listctrlex.cpp to your project and subclass it.

These files are good examples of owner-draw control and custom draw list controls. if you want to visually show various data in your listview controls (such as progress, which is done here), you'll need these.

There is another way to show a progress control in a listview control - that is embedding progress bar control in your listview control. For this case that isn't necessary because the code presented here works properly and I don't want to worry about processing child window's messages.

I implemented and tested on Windows 2000 Proffesional, Visual C++ 6.0 with Service Pack 5. Untested under Unicode.

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

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About the Author

Jinhyuck Jung

Korea (Republic Of) Korea (Republic Of)
No Biography provided

Comments and Discussions

 
GeneralNeedes updating PinmemberDonsw11-Dec-08 12:15 
GeneralMy vote of 2 PinmemberDonsw11-Dec-08 12:14 
GeneralIt can do more... PinmemberMikeylas30-Oct-06 19:32 
GeneralIgnore the below comments (+fix) PinmemberAnthonyJ28-Apr-03 8:33 
The idea of creating lots of CProgressCtrl windows sounds horribly inefficient if you're planning on displaying large datasets. Even just creating enough to fill the list seems bad (what if its resizable? - gets messy).
 
This is exactly what ownerdrawn / customdrawn lists were for - slight tweaks to the way the list is drawn. My own need for this control needs a slightly modified style of bar, so would the posters below recommend I create a derived CProgressCtrl to do the drawing too?
 
As for the column heading problems, the only problem is that GetCellRect is calculating an incorrect rectangle for column 0, because CListCtrl::GetSubItemRect() doesnt handle this case nicely. My fix for this (seems to work nicely for all the cases I've tried) is to replace GetCellRect with this:
 

BOOL CListCtrlEx::GetCellRect(int iRow, int iCol, int nArea, CRect &rect)
{
CRect colRect;
if (!GetHeaderCtrl()->GetItemRect(iCol, colRect))
return FALSE;
 
if(!GetItemRect(iRow, rect, nArea))
return FALSE;

rect.left = colRect.left;
rect.right = colRect.right;

return TRUE;
}

 
The only negative comment that I have is the name of the class - there are lots of classes called CListCtrlEx, so I'd have chosen something more descriptive - eg CProgressListCtrl.
 
--
AnthonyJ@planetquake.com
www.anthony.co.uk
GeneralMore Effecient Method PinmemberZac Howland22-Mar-02 6:45 
GeneralHERE's the correct way PinmemberMike Luongo8-Dec-01 9:31 
GeneralRe: HERE's the correct way PinmemberMax Santos19-Jul-03 16:51 
GeneralYOU'RE DOING IT ALL WRONG!!! PinmemberMike Luongo8-Dec-01 9:16 
GeneralMany bugs PinmemberTre20-Nov-01 15:29 
GeneralRe: Many bugs PinmemberAnthonyJ28-Apr-03 8:16 

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