Change log

Version: 1.8

Released: 15.03.2012

• added: TCustomTagCloud.RowCount and TCustomTagCloud.VisibleRowCount properties
• added: TCustomTagCloud.GetItemRowIndex function
• added: TNavPathLabel - a new simple path info component (ie. the path to the selected item of content, file path, etc.)

Version: 1.7

Released: 18.01.2012

• added: Selected property to TTagCloudItem - by this way you can handle multi-select behavior of the tag cloud (see also StylingDemo)
• changed: Visible property of TTagCloudItem is now declared as published
• fixed: Bug in component installer (Setup Wizard) - Delphi 5 IDE was not recognized on developer's computer

Version: 1.6

Released: 26.09.2011

• added: Delphi XE2 compatibility
• added: Automatic installer (Setup Wizard)
• added: GetItemPageIndex function
• fixed: Corrected conditional defines for using GetTextExtentPoint32 function

Version: 1.5

Released: 16.03.2011

• added: TTagIndex component
• added: Custom scale definition (you can setup your own value ranges with different font sizes and colors)
• added: Frames and backgrounds support for tag items, including colors, styles, margins, etc.
• added: TTagCloudPrmStyler as a new component for managing the styles of your tag clouds (see also TCustomTagCloudStyler)
• added: OnBeforePaint and OnAfterPaint events, to support custom painting onto the whole TagCloud component surface
• added: OnTagPositioning event, that allows you to customize the position of tag items (ie. insert breaks, spaces, etc.)
• added: FixedColCount property, that forces an automatic calculation of FixedColWidth, so the tag cloud items are arranged into the specified number of columns
• added: Direction property, that allows you to compose the tags horizontally (by default) or vertically (as an Index, rather than Cloud). It is applicable only for fixed-width tag clouds.
• added: SelectedItem property, that identifies one of the items as selected (see also SelectedColor and SelectedFrame)
• added: Colors.AddColor method, to allow more comfortable adding of color levels at run-time
• added: ShrinkDiacritic property, that can produce even more shrunken tag clouds, when you are not using captions with diacritical characters
• added: GetItemMetrics method, that can be used to retrieve the calculated rectangles, text height, and other fields of an item used for drawing
• added: New demonstration projects, that covers the newly implemented components and properties
• improved: Aligning the tags on the baseline
• improved: Redesign of TTagCloud component declaration, to support more comfortable inheritance (TTagCloud is inherited from TCustomTagCloud now)
• improved: MinValue and MaxValue properties are available as public now
• improved: Better centering the hovered tag items inside their drawing rectangles
• improved: The speed of rebuild process for a large amount of items
• improved: More precise calculation of auto-shrinked rows
• improved: Now all temporary fields of TTagCloudItem are always calculated (even if OnCustomDrawItem is not assigned), so also the GetItemAt method and detection of hovered item are now more precise
• improved: DisplayName for design-time editing of color level items
• improved: Autosizing of the component (when large items together with small items have been located on the last row, the size was not calculated correctly)
• improved: Displaying a maximum count of available tag items even if the component has the smallest possible size
• improved: Suppressed calling of Rebuild methods during the load process of the component
• fixed: A validation flag for items is now handled correctly, so the previously invisible items are rebuilt after switching the relevant properties (filter, logscale, etc.) on and off.
• fixed: Sorting with diacritics
• and other minor improvements and fixes

Version: 1.1

Released: 3.11.2010

• added: Compatibility with Delphi XE
• added: Multi-page and AutoSize support (see the PageCount, PageIndex, DisplayCount, FirstDisplayIndex, LastDisplayIndex and AutoSize properties)
• added: Automatic sorting (see the Sorted property)
• added: Custom sorting (see the OnCompareItems event)
• added: Fast binary searching for items (see the Find(Caption) method)
• added: Searching the items by Data pointer (see the Find(Data) method)
• added: Quick access methods, such as IncreaseValue(Caption, Increment, ...), AddItem(Caption, Value, ...)
• added: Automatic and/or user defined filtering (Filter and VisibleCount properties and an OnFilter event)
• added: A variable row heights (see the AutoShrinkRows property)
• added: Fixed column width support (see the FixedColWidth property)
• added: OnCustomDrawItem event handler, that supports both standard and user defined drawing of items
• improved: Cache mechanism (tag cloud rebuilding) has been significantly improved, so the component can be used for working with large amounts of data
• improved: Sorting speed for large number of items (it is implemented as a non-standard workaround, so if you want to use, you have to enable it by setting the UseSpeedSort public property to True at run-time)
• fixed: Truncated item labels, that were located near by the edges of the component (when HoverEnlarge was True and ColSpacing was too small)
• added: An advanced demonstration project, that shows the newly implemented properties and methods in action (also includes an example of "Creating the tag cloud items from text", "Custom drawing example" and "Opacity simulation by color levels definition")

Version: 1.0

Released: 20.8.2010

• The first release of TTagCloud component