Multi column list box with sort
BlitzMax Forums/MaxGUI Module/Multi column list box with sort
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| Yay, I have finally cracked this. I've modified Ziltches code to make it OO structured and also added my own sort functionality (clicking column heading will alternate between ascending and decending sort). I hope others find it useful :-) EDIT: Moved code to Code archives section: http://www.blitzmax.com/codearcs/codearcs.php?code=2293 |
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| This looks great. However I can't seem to move the window - any attempt to do so via the title bar renders the listboxes black and the window freezes til I click the desktop and then reclick a listbox. The same happens if I try via the system menu :( |
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| Not sure how I missed that (although I have just updated Blitz to 1.30, not sure if the same happened in 1.28). Will find a way to fix it :-) |
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| OK fixed it for 1.30. Not sure why, but adding a canvas seemed to fix it! I also updated it to extend TProxyGadget, made it unicode compliant, and also remembers the selected item after a sort. |
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| Thanks for the update - this is seriously neat! Still a teeny problem though: remembering the selected item after a sort is very flaky - clicking on a row and then on random column headers often removes the selection. Good opportunity for me to stretch the old brain cell and see if I can work out why... ;-) |
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| Very nice. A good and useful addition! Something i could may add to Logic Gui? While playing with it i found two minor things though you might want to look at. When moving the separators between the titles and then clicking on one of them to do a sort, the first separator jumps back to it's initial size. I made the window resizable to see how that works: Local window:TGadget =CreateWindow("Multi-Column List Example",100,100,320,280,Null,WINDOW_TITLEBAR|WINDOW_CLIENTCOORDS|WINDOW_RESIZABLE) Again the separator of the first column moves, this time to the smallest position, when you resize the window (or minimize/maximize). |
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| Hmm, see what you mean about the selection. Can't see anything obvious so feel free to have a crack at it. jsp - I was hoping you would ask that :-) Feel free to use it in LogicGui, although you may want to wait until the bugs have been ironed out. I was already aware of the first column width resizing, although on mine (Win XP) the size remains when sorting. It reset to minimum width if I edge aligned the gadget, and also if I resize the window. It's on my list of things to fix! |
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| That resizing problem rang a bell: http://blitzmax.com/Community/posts.php?topic=53343#609330 There are a lot of LVM_SETCOLUMNWIDTHs sent in win32listbox.cpp so if that code is called, it could be the source of the resizing as it was for me 2 years ago ! :) |
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| Thanks for the link (it needs a www. to work btw). I've got a few things I need to work on so will try and have a look at this tomorrow. |
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| Good work Ghost Dancer! What Peter said is true. If we could only get maxgui code to check first if there is only one column before autosizing. this line appears 3 times in win32listbox.cpp SendMessage(_gadget.hwnd(),LVM_SETCOLUMNWIDTH,0,-2); |
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| Thanks Ziltch - couldn't have done it without your original code. Would be great if maxgui could be updated as you suggested, I prefer not to change the module code if at all possible. I think for now I will write an update method that can be called on a resize event, but would be nice if it could be self contained. EDIT: Just uploaded latest version to code archives (link in first post) |
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