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Yes, I am currently overriding both constructors. This issue is more about expected behavior: the Create constructor is usually interpreted as the main one, responsible for initializing all fields. All other constructors are interpreted as secondary (CreateEx). In my opinion, it would be logical to ...

I don't use the SRVE, but maybe you have to reference the TopLevelEditor? I have to do that with the regular rve to handle table stuff, e.g., rve.TopLevelEditor...


Hi Stan, you're right. The key is in the correct RVData. I changed the linear text loop to a recursive table loop, and now the ...

I have a question about the coordinates of the TCustomRVItemInfo object on the page. I need to draw a graphic primitive next to the object. Everything works fine, but if the object is in a table, the approach failed. Here is a part of a code:


procedure TEditor.SRVEditPaint(Sender: TSRichViewEdit ...

I have the following problem. I am creating a descendant of TRVGraphicItemInfo using CreateEx constructor, but the overridden Create constructor is never called. As a result, I cannot initialize additional properties:


TRVChartItemInfo = class(TRVGraphicItemInfo);

constructor TRVChartItemInfo ...

Thanks, it works.

The content in the table changes via TRVLabelItemInfo.Text:

SRichViewEdit.CanUpdate := False;
try
ALabel.Text := '<some large text>'; // <-- here the table extends (expected behavior)
{ other operations... }
ALabel.Text := 'A'; // <-- here, the table width should return to normal (but it doesn ...

The sequence of actions is as follows:

1. The table contains content (text) that changes programmatically.
2. The content increases > the table columns expand.
3. The content decreases > the table columns remain wide.
4. Task: adjust the width of the columns to the current size of the content

I ...

Hi, I have a specific question about tables.

The editor has a TRVTableItemInfo table that contains TRVLabelItemInfo.

According to the program logic, I programmatically change TRVLabelItemInfo.Text twice. The first time, the width of the table columns automatically adapts to the wide text, which is ...

Hello RV-community!
I want to optimize the descendant of TRVLabelItemInfo so that the text always fits in a line. If there is too much text, I plan to put an ellipsis at the end (as in the photo). Can you tell me how to solve this problem?

Yep, I need to add "AddUndo" to the Undo method. Thank you, Sergey)

Yes, implementation of the TRVUndoModifyMathObject.Undo is here:


procedure TRVUndoModifyMathObject.Undo(RVData: TRichViewRVData);
var
ItemInfo: TRVMathObjectItemInfo;
begin
if FItemNo > -1 then
begin
ItemInfo := TRVMathObjectItemInfo(RVData.GetItem(FItemNo));
if Assigned(ItemInfo) then ...

Hi, I have read other forum threads regarding "Custom Undo" operations, but I did not find an answer.
Based on this topic , I implemented a custom Undo class, and it works fine:


class procedure TRVUndoModifyMathObject.AddUndo(RVData: TRichViewRVData;
ItemInfo: TRVMathObjectItemInfo);
var
Edit ...

Thank you Sergey, by email would be great.

I have a problem with setting the TRVMathItemInfo.TextColor property. When the formula is created (a new one is added), this property works fine. But when the formula already exists and I try to change the TextColor, nothing happens. The same problem occurs with the visual formula editor ...

I commented the code and tested AME's solution. The fonts "STIXTwoMath-Regular.otf" and "STIXTwoMath-Regular.ttf" failed anyway (now the AV appears in a different place). It seems to me that the engine does not work properly with some characters, because the font "STIXTwoMath-Regular.input.ttf ...