rvico TRichView Reference | Version History

New in version 1.5.4

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Compatibility issues

1. Changed types in events. Important (please read before installing the update!):

Types of parameters were changed in some events: "TRichView" was changed to "TCustomRichView", "TRichViewEdit" to "TCustomRichViewEdit".

After installing, open all forms containing RichView or RichViewEdit, and modify declarations of event handlers: change "TRichView" to "TCustomRichView", "TRichViewEdit" to "TCustomRichViewEdit". You must do it manually!

(This is one-time change that is required only for projects created with older version of the components)

For example, for TRichView.OnRVMouseDown

procedure TForm1.RichView1RVMouseDown(

                Sender: TRichView;

                Button: TMouseButton;

                Shift: TShiftState;

                ItemNo, X, Y: Integer);

begin

...

end;

must be changed to

procedure TForm1.RichView1RVMouseDown(

                Sender: TCustomRichView;

                Button: TMouseButton;

                Shift: TShiftState;

                ItemNo, X, Y: Integer);

begin

...

end;

Sorry for inconvenience.

2. Changed component hierarchy

TRichViewEdit, TDBRichView, TDBRichViewEdit are not descendants of TRichView any more. All of them (and TRichView itself) are descendants of TCustomRichView.

TDBRichViewEdit is not a descendant of TRichViewEdit any more. Both them are descendants of TCustomRichViewEdit.

See new scheme of hierarchy.

3. New parameter

New parameter of SaveCSS/SaveCSSToStream. Please use empty set ([]) for it.

New feature: RTF Import

TRichView.LoadRTF;

TRichView.LoadRTFFromStream;

TRichViewEdit.InsertRTFFromFileEd;

TRichViewEdit.InsertRTFFromStreamEd;

TRichViewEdit.PasteRTF;

TRichViewEdit.CanPasteRTF;

and property TRichView.RTFReadProperties.

New feature: saving text and paragraph styles in RVF

New rvfoSaveTextStyles and rvfoSaveParaStyles RVFOptions

TRichView.RVFTextStylesReadMode;

TRichView.RVFParaStylesReadMode;

Related: TRichView.DeleteUnusedStyles.

New feature: hot pictures

Hot pictures are the same as normal pictures, but they are also hypertext jumps.

New methods: AddHotPicture, AddHotPictureTag, InsertHotPicture.

Old methods (GetPictureInfo, SetPictureInfo, GetCurrentPictureInfo, SetCurrentPictureInfo, SetPictureInfoEd) now work with both pictures and hot pictures.

New properties for text and paragraph formatting:

TFontInfo.StyleEx (new option rvfsAllCaps);

TFontInfo.CharScale;

TParaInfo.LineSpacing;

TParaInfo.LineSpacingType;

TParaInfo.Options.

New feature: Tab navigation through links and inserted controls

TRichView.TabNavigation property;

TRichView.GetFocusedItem method.

New feature: Proportional resizing of controls in documents

RichView now can resize controls depending on document width.

Let ItemNo - index of control item (rvsComponent).

var Item: TRVControlItemInfo; 

  ...

Item := RichView.GetItem(ItemNo) as TRVControlItemInfo;

Item.PercentWidth := 50// 50% of document width (minus paragraph indents)

Effect will be after reformatting.

Known problem: such controls may not work properly in paragraphs with word-wrapping turned off.

Miscellaneous

OnCaretMove

GetLastCheckpoint, GetPrevCheckpoint

two new possible values of Direction parameter of OnCaretGetOut

TRVStyle.ParaStyles.FindStyleWithAlignment and FindSuchStyle

"whole word" option for TRichView.SearchText and TRichViewEdit.SearchText (thanks to Louis Kessler)

Improved:

support of third party graphic classes

RTF export

HTML export: SaveHTML now retains right and justify alignments.


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