23 January 2006 - version 1.4.9
- Fixed ImageEn AV when creating the thumbnails.
- Fixed incorrect thumbnails details when using ImageEn.
- Fixed incorrect JPEG 2000 images loading with ImageEn.
- Improved the thumbnails shell extraction.
- Minor changes.
3 December 2005 - version 1.4.8
- Fixed incorrect tbFit border painting.
17 November 2005 - version 1.4.7
- Fixed incorrect icon selection painting.
- Fixed incorrect thumbnail details painting.
- Added ESC key handler to cancel cut or copy.
11 November 2005 - version 1.4.6
- Made GetChildByIndex function more robust.
- Fixed 0000017 Mantis entry: AV when deleting file.
- Fixed 0000023 Mantis entry: incorrect mouse click events when
HideCaptions or ComCtl6 was used.
- Fixed problem in CM_FONTCHANGED and Begin/End Update causing
TListview to access window handle during streaming, thanks to
Jim for the fix.
- Fixed incorrect focus painting when syncronizing the selection.
- Fixed incorrect icon selection painting.
- Improved ImageEn support, thanks to Kai Brendel for reporting this.
- Added support for VT 4.4.2
- Added support for threaded enumeration of objects - Jim K
- Added new border styles, tbWindowed and tbFit.
- Added new SingleLineCaptions property to the ThumbsOptions.
- Added Ctrl-I shortcut to invert the selection.
31 May 2005 - version 1.4.5
- Fixed AV when creating large Metafiles thumbnails, thanks to
Polo for the fix.
- Fixed incorrect drag image when DragImageKind was diNoImage,
thanks to Thomas Bauer for reporting this.
- Denied Theme Manager subclassing.
- Added new property: ThumbsOptions.CacheOptions.AdjustIconSize to
allow dynamic thumbnails resizing.
21 December 2004 - version 1.4.4
- Added EditFile method, to easily browse for a file to select it
and begin to edit it.
- Fixed incorrect checkboxes sync.
- Fixed incorrect mouse button click handling when ComCtrls 6 is
used, thanks to Gabriel Cristescu for reporting this.
30 August 2004 - version 1.4.3
- Added checkbox support for vsxThumbs viewstyle.
- Added partial background image support to non vsxReport
ViewStyles, the background should be loaded in the listview
using the ListView_SetBkImage API:
var
BK: TLVBKImage;
begin
with LV.TreeOptions do
PaintOptions := PaintOptions + [toShowBackground];
// LVBKIF_SOURCE_HBITMAP is not supported by ListView_SetBkImage
// TLVBKImage.hbm is not supported by ListView_SetBkImage
Fillchar(BK, SizeOf(BK), 0);
BK.ulFlags := LVBKIF_SOURCE_URL or LVBKIF_STYLE_TILE;
BK.pszImage := PChar(Edit1.text);
ListView_SetBkImage(LV.ChildListview.Handle, @BK);
end;
4 June 2004 - version 1.4.2
- Added support for toHideOverlay and toRestoreTopNodeOnRefresh
properties.
- Added new property: ThumbsOptions.CacheOptions.CacheProcessing
to allow ascending or descending sorting of the thread cache
processing list.
When this property is tcpAscending the top files in the
listview are thumbnailed first.
- Fixed incorrect selection painting, it now uses the values in
Colors.FocusedSelectionColor and Colors.UnFocusedSelectionColor.
- Fixed an incorrect call to OnEditCancelled.
- Fixed an incorrect call to OnDblClick.
- Reworked the internal cache events.
5 March 2004 - version 1.4.1
- Compatible with VSTools 1.1.15
- Fixed drag and drop synchronization, it now correctly fires
OnDragDrop event when the ViewStyle <> vsxReport.
- Fixed incorrect icon spacing when the handle is recreated.
20 December 2003 - version 1.4
- Compatible with VT 4.0.16 and VSTools 1.1.12c
- Changed the Cache StreamVersion, previous cache files will
be reloaded.
- Fixed Drag&Drop synchronization, the OLE drop is disabled
by setting off toAcceptOLEDrop.
- Fixed incorrect focus painting.
- Fixed DetailedHints inconsistence.
- Fixed TCacheList problem with some exotic folder names.
- Fixed another VCL TListview bug, the edit control was not
correctly showed when using large fonts in vsxList and
vsxSmallIcons ViewStyles, thanks to Boris for reporting this.
- Adem Baba added support for the ImageMagick graphic library
(http://www.imagemagick.org) using Nils Haeck Delphi wrapper:
http://www.simdesign.nl/components/imagemagick.html
- Added ImageLibrary property to get the image library type that
is being used.
- Added HideCaptions option to hide the thumbnails captions.
- Updated demo.
- New SpeedTest demo.
16 October 2003 - version 1.3.5
- Fixed incorrect selection synchronization when the Listview
loses focus.
- Fixed drag and drop synchronization, it now correctly fires
OnStartDrag, OnEndDrag, OnDragDrop when the
ViewStyle <> vsxReport.
- ThumbsCache.Compressed is now defaulted to False, it
improves the rendering speed performance when the cache
is not saved.
- Added full unicode support for ImageEn lib.
- LoadGraphic now has support for ImageEn lib.
- Added ShowXLIcons option to show XL-Icons in vsxThumbs mode
(it will only work on WinXP).
- Added ShellExtractExtensionsList to selectively load shell
supported thumbnails.
Suppose you only want images + html thumbnails, then you
should turn off seShellExtract to disable the extraction of
additional shell supported files (doc, xls, etc) and then
add '.html' to the ShellExtractExtensionsList.
- Mouse wheel will now scroll by thumbnail height.
- New IDE component palette icon.
- Updated Demo.
21 August 2003 - version 1.3.4
- Fixed incorrect icon arrangement on vsxList mode.
- Fixed incorrect thumbnail reloading method.
19 June 2003 - version 1.3.3
- Changed the DefaultStreamVersion of the cache.
18 June 2003 - version 1.3.2
- Fixed AV when the RootFolder is renamed and the cache
saving is activated.
- Added UseSubsampling property to resize the thumbnails
smoothly without loss of image quality.
- Added Compressed property to the Cache options, it activates
the on-the-fly cache compression system. VELVEx uses JPEG
compression because it's the most effective compression method
for images, the drawback is that there's a loss of quality in the
thumbnails, if you are looking for the highest quality rendering
deactivate this property and set UseSubsampling to true.
Here are some tests on a folder with 200 images
(120 x 120 thumbnails):
No compression: 7205 Kb, 0% compressed
ZLib: 5002 Kb, 30% compressed
JPEG: 441 Kb, 94% compressed
- Lossless Compression for small images.
- Greatly improved thumbnails rendering speed.
- Reduced flicker when scrolling.
- Updated Demo.
23 May 2003 - version 1.3.1
- Fixed an AV on WinXP, changed SupportsShellExtract.
20 May 2003 - version 1.3
- Added Stretch property to the thumbnail options, it
stretches the thumb images to fit the thumbnail size.
- Fixed incorrect drag image offset, thanks to Jim.
- Fixed drag images not showing on WinXP, thanks to Jim.
- Fixed incorrect mouse state when opening the context menu,
thanks to Jim.
- Fixed thumbnail renaming bug, when the file extension was
changed the thumbnail was not refreshed.
- Made a workaround of a TListview bug, when the Listview is
small enough to not fit 2 fully visible items the PageUp/PageDown
buttons don't work.
- Fixed thumbnail creation bug, the images were shrinked if
the thumb size was higher than the image size.
- SyncItemsCount was not called when the items were deleted.
- Fixed Details drawing in Win9x.
- Fixed a bug in MakeThumbFromFile, TJPEGImage doesn't accepts
images with 1 pixel width or heigth, the minimum size of the
thumbnails is now set to 2.
- Fixed a bug in ValidateListItem, it didn't work for the first
node in the list.
- Fixed a bug in the Drag&Drop mechanism, it now doesn't allow
to drop in the dragged item unless the right button is used
for the drag operation or when Ctrl, Alt, Shift keys are being
pressed.
The same goes for dropping in the background.
- Fixed a bug in the Drag&Drop mechanism, it didn't accept
items outside the listview unless Ctrl, Alt or Shift keys was
pressed.
- Fixed a bug in the thumbnails cache saving mechanism, thanks
to Eric Fookes for pointing this out.
7 April 2003 - version 1.2
- The cache is automatically updated when loaded. If an image
file was changed the thumbnail will be reloaded.
- Added DetailedHints property to the thumbnail options to show a
hint including file name, size, date, type, image size, and
shell icon. ShowHint must be true.
- Added OnThumbsGetDetails event to set a customized string for
the hints and thumbnails details.
- Fixed mem leak in MakeThumbFromFile for using StretchDraw,
which is not thread safe.
- Fixed a bug in the Drag&Drop mechanism, now it doesn't allow to
drop a file if the shell doesn't support it.
- Fixed the drawing of the multiple Drag&Drop bitmap.
- Fixed a TListview bug, in virtual mode when the icon arrangement
is iaLeft the arrow key press are scrambled.
- The Bevel and Border properties are now correctly synched.
- Demo updated.
27 February 2003 - version 1.1
- Added OnThumbThreadClass event, to replace the thumbnail
thread with a custom one, thanks to Jim for implementing this.
- Added a new demo to showcase how to create a custom thumbnail
thread.
- Fixed an incorrect parameter in OnThumbsCacheAdd event.
17 February 2003 - version 1.0
- Added UseShellExtraction property, it is used to let the shell
extract and create the thumbnail. Jim added support for
IExtractImage in the Thumbnails thread. HTML files, and most
image files and any other format that is supported by windows or
a shell extension is shown as a thumbnail!
VELVEx will try to create the thumbnails with the image library,
if that fails and UseShellExtraction is enabled it will try
with the Shell IExtractImage interface.
I decided to leave the image files to the default image library
based on some tests:
With a folder of 180 jpg files:
Windows Explorer (IExtractImage): ~20 secs.
ACDSee: ~10 secs.
VELVEx: ~5 secs.
Cache file size:
Windows Explorer: ~1000 KB
ACDSee: unknown
VELVEx: ~270 KB
- Regrouped the thumbnails properties into ThumbOptions property
- Added ValidateListItem public method to get a valid TListitem
associated with a Node.
The obtained ListItem gives you access to its properties and
methods, which will be sensible to use only when the ViewStyle
is not in vsxReport, for example:
var
L: TListItem;
begin
if LVEx.ValidateListItem(LVEx.FocusedNode, L) then
L.MakeVisible(false);
end;
- Added LoadAllAtOnce property to load all the thumbnails at once,
like ACDSee.
- Added ExtensionsExcludeList public property, is a list that
contains the file extensions that should be excluded from creating
the thumbnails.
This could be helpfull when you don't want the shell to create
thumbnails for a specific file extension.
- Added BorderSize property to set the thumbnails border width.
- Added ShowSmallIcon property to show the file small icon on the
top-right border of the thumbnails.
- OnEnter and OnExit events are now triggered correctly.
- Fixed a bug in the cache deleting method, when AutoLoad was true
and the thumbnail was reloaded, the cache was getting scrambled.
- Fixed a bug in the editing method, in Win9x if the Delete key was
pressed an AV was raised.
- Fixed a bug in the editing method, when an item was reselected
after the control was unfocused the item enters in edit mode.
It's a classic TListview bug.
- Minor bug fixes.
- Demo updated.
29 December 2002 - version 0.9.9
- Fixed minor selection and focus issues, thanks to Boris.
19 December 2002 - version 0.9.8
- Added a chance to change the items caption via DoGetVETText,
thanks to Jim for implementing this.
- Added ThumbsHighlight, ThumbsHighlightColor properties to
control the image files highlighting.
- Fixed a bug in TExtensionsList, it was not filled correctly
in Delphi 5.
- Fixed a bug in CreateNewFolder, it was giving an AV when the
ViewStyle was not vsxReport.
- Fixed a bug in the painting method, items were not properly
blended and cut items were not ghosted.
- Fixed a bug when Align and Constraints were setted at runtime
and the ViewStyle wasn't vsxReport it didn't worked as expected.
7 December 2002 - version 0.9.7
- Reworked the cache mechanism, improved thumbnails creation and
painting speed.
- Added new public method for cache cleaning,
ThumbsCacheOptions.ClearCache
- Added new public method for cache item reload,
ThumbsCacheOptions.Reload
- Added new property, ThumbsCacheOptions.CompressionQuality,
to control the thumbnail compression, default value of 60
(1..100, 1 highest compression but lowest quality, 100
lowest compression but highest quality).
- Updated demo.
1 December 2002 - version 0.9.6
- Added support for ImageEn (http://www.hicomponents.com) and
Envision (http://www.intervalsoftware.com) image libraries.
30 November 2002 - version 0.9.5
- Three new events added:
OnThumbsCacheAdd: fired when a thumbnail is added
to the cache.
OnThumbsCacheRead: fired when a thumbnail must be read
from the cache.
OnThumbsCacheProcessing: fired when a thumbnail is about
to be processed.
11 November 2002 - version 0.9.4
- Reworked the thumbnail cache to support unicode path names.
- Reworked the thumbnails creation mechanism to support unicode
path names.
VLVEx can now browse through unicode folders and create the correct
thumbnails, it is now one of the few thumbnail creation components
that has full unicode support.
7 November 2002 - version 0.9.3
- The cache file is now compressed and the size is reduced by 10
times, thanks to Gerald Koeder for the tip.
- Improved the cache management, introduced a new property
ThumbsCacheOptions.
- The cache will now be automatically loaded/saved when
ThumbsCacheOptions.AutoLoad/AutoSave is true.
- ThumbWidth and ThumbHeight now reflect the real pixel size of the
thumbnail.
- Updated the demo.
7 October 2002 - version 0.9.2c
- Hidden files where not ghosted when ViewStyle was not vsxReport.
- ShellContextSubMenu now works when ViewStyle is not vsxReport.
5 October 2002 - version 0.9.2
- Fixed a MS Listview control Shift-selection bug.
23 September 2002 - version 0.9.1
- Improved the thumbnails cache to support comments.
20 September 2002 - version 0.9
- Implemented a new threading system, thanks to Jim.
- The thumbnails cache can now be loaded and saved to disk, improved
demo to show this.
8 September 2002 - version 0.8.3
- GraphicEx support, thanks to Jim.
- Fixed a bug in TListview not throwing a Change event when Shift
selecting a block of items, thanks to Jim.
4 September 2002 - version 0.8.2
- Fixed a thread bug in D7, thanks to Jim and Gerald.
- Fixed OnClick and OnDblClick not triggering, thanks to Matthias.
25 August 2002 - version 0.8
- Greatly improved Listview custom drawing method and fixed
all WinXP painting issues, thanks to Jim and Bill.
- Fixed icon arrangement issues.
- Improved drag image.
- Improved demo.
17 August 2002 - version 0.7.3
- Fixed incorrect item column arrangement when the ViewStyle
is vsxList or vsxSmallIcon, thanks to Jim.
- Fixed painting issues in WinXP, thanks to Bill Miller.
- Fixed canvas not invalidated when resizing in WinXP.
12 August 2002 - version 0.7.2
- Added 2 new properties that allows to show file and image
properties in vsxThumbs ViewStyle: ThumbDetails and
ThumbDetailsHeight.
- Added ThumbsOnlyBorder property, when true it shows
borders only in valid image thumbnails when vsxThumbs
ViewStyle, otherwise it shows borders for all the files
and folders.
- Fixed items arrangement bug in vsxThumbs ViewStyle.
- Fixed visibility problem when OnEnumFolder is assigned.
- Fixed no editing mode on mouse click, thanks to Jim.
- Improved demo.
- Readme file created for version history, installation and
basic user guide.
11 August 2002 - version 0.7.1
- Fixed no captions in W9x, thanks to Jim,
- Fixed no captions when the handle is recreated.
- VirtualExplorerListviewEx doesn't work with ThemeManager
version lower
than 1.9, please download the new version at:
http://www.delphi-gems.com/ThemeManager.html
9 August 2002 - version 0.7
- Added unicode support, thanks to Troy Wolbrink.
- Fixed a positional bug in the child Listview Popupmenu,
added ContextMenu events notifications, thanks to Jim.
- Added VETColors support for file caption colors.
- Improved browse and selection speed (2000 files drag selection
in Icon viewstyle 30 sec, before it was 55 sec. Win Explorer gets
the job done in 10 sec... grrr. The problem lies in the
CustomDrawing of the M$ Listview, it slows everything down,
don't know how the heck Win Explorer manages this
behavior).
19 July 2002 - version 0.6 (Jim Kueneman)
- Added the long awaited Drag and Drop Support. Please be
careful with this as it seems ok but if you delete you
hard drive I take no responsibility.
The drag image sucks but I spent all the time on TListview
I am going to trying to get it to create a better drag image,
it won't because of the custom draw and no image lists assiged
to the control (don't try to assign a image list with custom
draw either!).
- Fixed bug with the new FNodeArray when the VT structure
change was detected and VLVEx called SyncItemsCount.
This method would change the number of items in the
Listview but did not check to see if FNodeArray was big enough.
14 July 2002 - version 0.5.1
- Fixed Listview visibility bug, thanks to Aaron
4 July 2002 - version 0.5
- Jim Kuenaman adapted the VET Icon thread, thanks Jim.
- Implemented a Thumbnails cache to save bitmap handles, thanks to
Werner Lehmann.
- Fixed clipboard, key and mouse sync, thanks to Bill Miller.
30 April 2002 - version 0.4.4
- Fixed memory leak in DummyImageList creation, thanks to
Milan Vandrovec.
- Added Focus sync, thanks to Bill Miller.
28 April 2002 - version 0.4.2
- Fixed painting issues in the child VCL Listview on WinXP, woohoo.
16 April 2002 - version 0.4.1
- Fixed Thread race condition.
- Fixed file deletion synch.
15 April 2002 - version 0.4
- Unit and Class name changes to support VSTools RC 1.
- Created a base class with unpublished properties:
TCustomVirtualExplorerListviewEx.
- Need to lock the canvas of the bitmap in MakeThumbFromFile.
1 April 2002 - version 0.3
- Improved thread speed, and fixed some bugs.
- Fixed flicker when changing viewstyles.
- Added ThumbBorders.
- Added OnThumbsDrawBefore and OnThumbsDrawAfter event
properties.
- Added SyncRepaint method to force repaint in the child VCL
Listview
- Added GetThumbDrawingBounds method to get the real thumbs
drawing bounds, instead of the Imagelib size.
- Removed OnThumbsFilter and added ExtensionsList instead, to
improve speed.
- ThumbSpaceWidth and ThumbSpaceHeight properties now represent the
true pixel space between thumbnails.
30 March 2002 - version 0.2.1
- Corrected a bug that caused a lot of flicker when changing dirs.
- Added BorderStyle, Color, Ctrl3D, Cursor, and Font synchronizing,
thanks to Bill Miller.
- Corrected Delphi 4 and 5 package issues, thanks to Jim Kueneman.
- Corrected Delphi 4 and 5 problems with FListview.SelectAll,
thanks to Jim Kueneman.
27 March 2002 - version 0.2
- Corrected Delphi 4 and 5 package issues, thanks to Jim Kueneman.
- Constraints assignment bug fixed, thanks to Milan Vandrovec.
- F5, Ctrl+C, Ctrl+V, Ctrl+X and Delete keys implemented.
24 March 2002 - version 0.1
- Thumbnails implemented.
- OnDataFind implemented, key navigation for the Listview.
- Ghosted items painted correctly now.
- Edit handling implemented, unicode not supported.
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