Window ListIconGadget With Owner Data (Very Fast)

[ChrisR]

Nicely done, thank you for sharing
UpdateListIconGadget after all AddGadgetItem, SetGadgetItemState or SetGadetItemColor, makes the difference for speed

[mk-soft]

Update v1.04.7
- Changed max columns count to auto column count

The count of columns is no longer limited and the item data is automatically adjusted.
The constant #LISTICON_COLUMN_SIZE indicates the starting value of the created columns

[mk-soft]

Nicely done, thank you for sharing
UpdateListIconGadget after all AddGadgetItem, SetGadgetItemState or SetGadetItemColor, makes the difference for speed

The biggest difference is the use of LVS_OWNERDATA. PureBasic needs about 300 ms to create 100000 items.
The ListView of MS several more than 50 seconds

[Kwai chang caine]

Nice work
Have you planed to make manually editables cells ?

[HeX0R]

This would be a GridGadget and no ListIconGadget

[Kwai chang caine]

This would be a GridGadget and no ListIconGadget

Aaaaah !!!
I hadn't noticed there was a difference.
So a gridgadget, is a manually editable listicongadget ?
And surely others options, but i don't know wich
So PB doesn't have Gridgadget, which is so useful.
Thanks HEXOR for have learning to me this différence

[HeX0R]

There were some quite good GridGadgets based on Canvas here in the forum, might be worth a search?

[Mindphazer]

Hi mk-soft
That's indeed, pretty fast !!
It takes about 10000 ms to fill a "standard" ListIconGadget with 20.000 elements, and... 31 ms with your method !

It will be very useful for me !!
Thanks a lot

[mk-soft]

Update v1.05.1
- Added Item Images Support
- Bugfix AddGadgetColumn

I've expanded it a little bit

[ChrisR]

Thanks for the improvements, images support, a nice ListIconGadgetEx
It would be a bonus if we could set colors on the header, as done here, of course, if it suits you

[Kwai chang caine]

There were some quite good GridGadgets based on Canvas here in the forum, might be worth a search?

Yes i know, there is several ListIcons manually modified on the forum, a style of basic EXCEL, because this subject really interesting me, since a long time, but :

1/ I didn't know that was called a GridGadget (For me ListIcon and GridGadget were the same thing, before you told me. )

2/ If I'm not mistaken, this Gridgadgets aren't based on virtual listicons.They're slow to load thousands of rows.
For the moment, unless I'm mistaken or have omitted something, i haven't find a working ListIcon very quick AND manually modified

[mk-soft]

Not fast, but works ...

Said's Canvas GridGadget
Link: viewtopic.php?f=12&t=54022

Last Update v2.4:
Link: https://github.com/mk-soft-65/MyGrid

But this is about the ListIconGadget from PureBasic and not a GridGadget.

[Kwai chang caine]

Thanks Mksoft
Yes i have see this splendid code, furthermore creating with a canvas, so starting from nothing, all by drawing... incredible
But i search something like EXCEL able to load numerous thousand of lines the most faster possible, exactely like your or RASHAD nice code
Unfortunately without cells editables ... This important function for me
I remember me, trying to modify the RASHAD code for adding this function, but like usually without succes
But now, thanks to HEXOR i have understand i must search virtual gridgadget for have this two functions together

[Michael Vogel]

Great and slim - cool work, thank you.


I'll keep the version without image support also because this should include everything needed most of the time.
Maybe some flags like #ListIcon_EnableImageSupport combined with some CompilerIf could be used to create an all in one solution.

Editing cells would also add additional overhead even this functionality is not used. Maybe a simple StringGadget at the top/bottom outside the original code would be enough in some situations. I added a quick method to get the right column (windows only):

Code: Select all

; AddOn
Procedure GetRowColumn(listicon,*row.Integer,*col.Integer)

	Protected p.Point
	Protected handle
	Protected hCWnd
	Protected header
	Protected hi.LVHITTESTINFO

	GetCursorPos_(@p)
	handle=GadgetID(listicon)
	ScreenToClient_(handle,p)

	hCWnd=	ChildWindowFromPoint_(handle,p\y<<32 + p\x)
	header=	SendMessage_(handle,#LVM_GETHEADER,0,0)
	hi\pt=	p
	SendMessage_(handle,#LVM_SUBITEMHITTEST,0,@hi)

	If hCWnd And hCWnd<>header
		*row\i=hi\iItem
		*col\i=hi\iSubItem
		ProcedureReturn #True
	EndIf

	ProcedureReturn #Null

EndProcedure

A call within the gadget event loop could look like this then (just for demonstration, no editing can be done here):

Code: Select all

	Case #PB_EventType_LeftClick
		Protected row,col
		If GetRowColumn(0,@row,@col)
			StatusBarText(0,0,"R:"+Str(row)+" C:"+Str(col)+" = '"+GetGadgetItemTextEx(0,row,col)+"'")
		EndIf

[mk-soft]

Great and slim - cool work, thank you.


I'll keep the version without image support also because this should include everything needed most of the time.
Maybe some flags like #ListIcon_EnableImageSupport combined with some CompilerIf could be used to create an all in one solution.

Edit:
A #ListIcon_EnableImageSupport is not required. Only when an image is used, the required image list is created.
The time difference between the version with or without images is very small. Maybe a 1ms at 100000 items.

If you use the one without image support, you must clean up the AddGadgetColumn bug yourself.