trichview.com

Support :: RE: resynchronizing

Cosmin3 — Sat, 17 May 2008 12:19:22 GMT

Author: Cosmin3
Posted: Sat May 17, 2008 12:19 pm (GMT 0)

Quote:

The method InsertCheckpoint inserts the checkpoint at the caret position. If it is in the middle of the item, the item will be splitted.

So you say that when i scan the text I have to move the caret to each problem? Isn't this slow (especially on ScaleRichView which in slow)?
Plus I have to scan again the text from editor because if the item is splitted then all position of the items (that are stored in an integer array) after this item will be no longer valid...

Support :: RE: rve.GetItemCoords identifies 1st line of multline Paragraph

Sergey Tkachenko — Sat, 17 May 2008 12:14:20 GMT

Author: Sergey Tkachenko
Posted: Sat May 17, 2008 12:14 pm (GMT 0)

uses CRVFData, DLines;

Code:

procedure GetCaretY(rve: TCustomRichViewEdit): Integer;
var DItemNo, DItemOffs, X, Y: Integer;
begin
rve := rve.TopLevelEditor;
rve.RVData.Item2DrawItem(rve.CurItemNo, rve.OffsetInCurItem, DItemNo, DItemOffs);
rve.RVData.GetOriginEx(X, Y);
Result := rve.RVData.DrawItems[DItemNo].Top+Y;
end;

Support :: RE: resynchronizing

Sergey Tkachenko — Sat, 17 May 2008 12:09:43 GMT

Author: Sergey Tkachenko
Posted: Sat May 17, 2008 12:09 pm (GMT 0)

The method InsertCheckpoint inserts the checkpoint at the caret position. If it is in the middle of the item, the item will be splitted.

The methods GetFirstCheckpoint and GetNextCheckpoint allow to enumerate checkpoints without enumerating all items. But they ignore checkpoints in table cells.

Support :: RE: resynchronizing

Cosmin3 — Sat, 17 May 2008 11:22:24 GMT

Author: Cosmin3
Posted: Sat May 17, 2008 11:22 am (GMT 0)

It's a good idea. Thank you.
Just a problem: checkpoints are associated with items not with a specific position inside items. So if there are several problems in a text item how can I assign a checkpoint to each of them?

Let's say that I will use SetCheckpointInfo to add a invisible checkpoint to a item. The ATag parameter will be the index of the message from the listbox. With GetItemCheckpoint I have to check every item from text (slow). Is there a way to access the "checkpoint array" to find the specific checkpoint (when I double click on a line in listbox)?

Support :: rve.GetItemCoords identifies 1st line of multline Paragraph

j&b — Sat, 17 May 2008 11:21:17 GMT

Author: j&b
Subject: rve.GetItemCoords identifies 1st line of multline Paragraph
Posted: Sat May 17, 2008 11:21 am (GMT 0)

Hello Sergey,

recently you helped me, to jump to a y- position in the memo ("procedure TForm1.Go2memoYpos").
The procedure works correctly.

In the meanwhile, I noticed that the identification of the y-position in a memo with "rve.GetItemCoords" is not correct.
"rve.GetItemCoords" identifies always the 1st line of a multi-paragraph. But I need the correct y-Position.
"OnMouseMoveUp" also doesn't work correct for what I want. If someone needs the y-position in rve, this procedure refers always to the y-position in memo-window (as soon as I scroll, y-Pos is wrong).

Is there a counterpart to "Go2memoYpos"?

J�rgen

procedure TForm1.Go2memoYpos; //---> OK <-----
var RVData:TCustomRVFormattedData;
ItemNo, OffsetInItem: Integer;
begin
rve.GetItemAt(0, rveYpos, RVData, ItemNo, OffsetInItem, False);
RVData := TCustomRVFormattedData(RVData.Edit);
RVData.SetSelectionBounds(ItemNo, OffsetInItem, ItemNo, OffsetInItem);
end;

Support :: RE: www.trichview.com can not be visited from China. why ?

Sergey Tkachenko — Sat, 17 May 2008 11:04:04 GMT

Author: Sergey Tkachenko
Posted: Sat May 17, 2008 11:04 am (GMT 0)

The site moving procedure is started. After transferring is complete (1-2 days), I believe the site will be available in China.

Support :: RE: resynchronizing

Sergey Tkachenko — Sat, 17 May 2008 10:46:12 GMT

Author: Sergey Tkachenko
Posted: Sat May 17, 2008 10:46 am (GMT 0)

May be it makes sense to mark these places with Checkpoints?

Support :: RE: "#13#10" or (only) "#13"

Sergey Tkachenko — Sat, 17 May 2008 10:44:11 GMT

Author: Sergey Tkachenko
Posted: Sat May 17, 2008 10:44 am (GMT 0)

First, in trichview itself, these characters are not stored. They are converted to internal flag "this item starts a paragraph".

As for using them in methods like InsertText or AddTextNL, it does not matter. TRichView understands line breaks defined as #13, or as #10, or as #13#10, or as #10#13.

Support :: "#13#10" or (only) "#13"

j&b — Sat, 17 May 2008 10:26:35 GMT

Author: j&b
Subject: "#13#10" or (only) "#13"
Posted: Sat May 17, 2008 10:26 am (GMT 0)

Hello,

I often see both spellings "#13#10" and (only) "#13" ?
What is correct when using RichViewEdit ?

I know that "#13#10" represents a carriage-return and a line-feed combination.
But when do you use "#13#10" and when only "#13"

If I look at own created samples I don't see a difference. Doesn't it matter how I use / combine # 13 and # 10 ?

On Internet I get no clear statements how to use. Is it a matter of taste ?
I think it's important for Replace (#13#10 or #13).

Sergey write " RichViewEditIn.InsertText('This is line 1'#13'This is line 2', False); "

and

...
const crlf = #13#10;
...
RichView1.AddTextNL('"Bullets" are the images from ImageLists. '+crlf+
'"Bullets" provide an efficient way to store graphics in RichView, '+...

Support :: RE: resynchronizing

Cosmin3 — Sat, 17 May 2008 09:58:24 GMT

Author: Cosmin3
Posted: Sat May 17, 2008 9:58 am (GMT 0)

For example: I scan the text and if I found this "It's a beautifull day ;!" then I place a line in listbox saying "Line 3 Col 20: you must remove ';' character". It's just an example - the messages in my language are more sofisticated..
The user may start fixing the text or may start doing something else. My application has to try to resynchronize this lines (from listbox). ItemNo and Offs at least but it would be great also with "Line x Col y"...

Support :: MOVING TRICHVIEW.COM TO THE NEW SERVER

Sergey Tkachenko — Sat, 17 May 2008 08:53:37 GMT

Author: Sergey Tkachenko
Subject: MOVING TRICHVIEW.COM TO THE NEW SERVER
Posted: Sat May 17, 2008 8:53 am (GMT 0)

The site is being moved.
Until domain settings are updated, the forums are accessible as http://66.225.228.153/~trichvie/forums/

Support :: RE: resynchronizing

Sergey Tkachenko — Thu, 15 May 2008 18:50:40 GMT

Author: Sergey Tkachenko
Posted: Thu May 15, 2008 6:50 pm (GMT 0)

How do you fill this listbox initially? Do each paragraph in ScaleRichView correspond to one listbox item, or how?

Support :: RE: How to Insert CR LF when writing to TRichView

Sergey Tkachenko — Thu, 15 May 2008 18:48:02 GMT

Author: Sergey Tkachenko
Posted: Thu May 15, 2008 6:48 pm (GMT 0)

RichViewEditIn.InsertText('This is line 1'#13'This is line 2', False);

Support :: How to Insert CR LF when writing to TRichView

JLuckey — Thu, 15 May 2008 17:57:05 GMT

Author: JLuckey
Subject: How to Insert CR LF when writing to TRichView
Posted: Thu May 15, 2008 5:57 pm (GMT 0)

I want to start a new line when writing to a TRichViewEdit but this code

RichViewEditIn.InsertText('This is line 1', False);
RichViewEditIn.InsertText('This is line 2', False);

produces:

This is line 1 This is line 2

What I want is:

This is line 1
This is line 2

Which method on TRichViewEdit allows me to do this?

Thanks

Support :: resynchronizing

Cosmin3 — Thu, 15 May 2008 17:20:26 GMT

Author: Cosmin3
Subject: resynchronizing
Posted: Thu May 15, 2008 5:20 pm (GMT 0)

Hi.
In my application I scan the text (from ScaleRichView) and then I write in a listbox a few lines that look like this: "Line x Col y: Some problem". Each line in listbox is associated with a TPoint in which x is ItemNo and y is Offs (in item). When the user double clicks on that line in listbox then with SetSelectionBounds the cursor is moved to that position.
Problem is that the user sometimes is deleting text, inserting something or using Undo/Redo. So some items in listbox may become unusable and some may have to be resynchronized.
For this I need a method that is fast (so the user doesn't wait seconds when is modifying the text). So I understand that can't be 100% precise...
I tried to store the cursor position and selection length at OnChanging event but it's not working. Even if it would work it would not helped me with Undo/Redo.

Any ideas?
Thank you in advance.

Examples, Demos :: [Demo] Advanced RTF to PDF demo

Sergey Tkachenko — Thu, 15 May 2008 13:45:30 GMT

Author: Sergey Tkachenko
Subject: [Demo] Advanced RTF to PDF demo
Posted: Thu May 15, 2008 1:45 pm (GMT 0)

The basic demo is here:
http://www.trichview.com/resources/llpdflib/rvll_rtf2pdf.zip

The new advanced demo is here:
http://www.trichview.com/resources/llpdflib/rvll_rtf2pdf_ex.zip

This demo adds the following features:
- header and footer
- hyperlinks (both links to URL and to another page)
- reading margins, positions of header and footer, page orientation from RTF.

The demos use shareware thirdparty components LLPDFLib, http://www.llion.net

Support :: RE: Detection af aan jpeg in a TMemorystream for a RichView

Sergey Tkachenko — Wed, 14 May 2008 15:19:38 GMT

Author: Sergey Tkachenko
Posted: Wed May 14, 2008 3:19 pm (GMT 0)

I do not understand the first questions. All these lines (header, item text, image class, etc.) represents one item in RVF.
The link for detailed RVF specification is http://www.trichview.com/help/index.html?rvf_specification.html

If you use TMemoryStream, you can access data as Stream.Memory. The current position can be read and set using Stream.Position (for all types of streams)

Support :: RE: Detection af aan jpeg in a TMemorystream for a RichView

jp — Wed, 14 May 2008 09:04:58 GMT

Author: jp
Posted: Wed May 14, 2008 9:04 am (GMT 0)

Thanks Sergey

This great - I can now wrtie a function witch can handle all types Images.

Only two more questions:
Are I right in assuming that the header, Item name, Image Class are items that RichView is setting in the stream?

And how can I best read backwards in the stream? I mean how do I come fram 'TJPEGImage' to the begin of the Header?

JP

ScaleRichView :: RE: Speed problem - at the table search - replace operation

Sergey Tkachenko — Tue, 13 May 2008 20:28:50 GMT

Author: Sergey Tkachenko
Posted: Tue May 13, 2008 8:28 pm (GMT 0)

You can do field replacement much faster without SearchText method.
See http://www.trichview.com/forums/viewtopic.php?t=8 , it had example with fields defined by {} characters.

ScaleRichView :: Speed problem - at the table search - replace operation

zekeriye — Tue, 13 May 2008 18:29:45 GMT

Author: zekeriye
Subject: Speed problem - at the table search - replace operation
Posted: Tue May 13, 2008 6:29 pm (GMT 0)

Hi;

we used modified scalerv richaction an editor and user free input with our base documents. After loading base documents we cleaning some database related data in the documents. We used this code block to cleaning database related items at the documents.

// Begin code clock
VAR
TopRVData: TCustomRVData;
SelStart1, SelStart2: Integer;
BEGIN
SELSTART1:=0;
SELSTART2:=0;
//

IF EXTRACTFILEEXT(XFILENAME2)='.RVF' THEN
WORDEKF.DOSYAAC_RVF(XFILENAME2) // LOAD RVF
ELSE
WORDEKF.DOSYAAC(XFILENAME2); // LOAD RTF
//
FORMRTF.SCALERV.RICHVIEWEDIT.VISIBLE:=TRUE;
with FORMRTF.SCALERV.RichViewEdit do begin
SetSelectionBounds(0, GetOffsBeforeItem(0), 0, GetOffsBeforeItem(0));
while SearchText('{', [rvseoDown]) do begin
TopRVData := TopLevelEditor.RVData.GetSourceRVData;
SelStart1 := RVGetLinearCaretPos(FORMRTF.SCALERV.RichViewEdit)-1;
if SearchText('}', [rvseoDown]) then begin
if TopRVData = TopLevelEditor.RVData.GetSourceRVData then begin
SelStart2 := RVGetLinearCaretPos(FORMRTF.SCALERV.RichViewEdit);
RVSetSelection(FORMRTF.SCALERV.RichViewEdit, SelStart1, SelStart2-SelStart1);
FORMRTF.SCALERV.RICHVIEWEDIT.INSERTTEXT('');
END
ELSE BEGIN
RVSetLinearCaretPos(FORMRTF.SCALERV.RichViewEdit, SelStart1+1);
END;
end;
end;
end;
FORMRTF.SCALERV.RICHVIEWEDIT.SetSelectionBounds(0, FORMRTF.SCALERV.RICHVIEWEDIT.GetOffsBeforeItem(0), 0, FORMRTF.SCALERV.RICHVIEWEDIT.GetOffsBeforeItem(0));
FORMRTF.SCALERV.RICHVIEWEDIT.VISIBLE:=TRUE;

// end code block //

But if the dcouments is full page table speed is slow. Only one page document processing nearly 5-6 second. Using edit�r with open (no cleaning data) is very nice nearly one second.

Have got any idea to slove this problem?

I am send an example document at ilya@triichview.com and screenshot after clenaing database related items. At this document the cleaning time is 6 second.

PS : most all of the documents are RVF format

Support :: RE: cursor is hidden after using rve.scrollTo

j&b — Tue, 13 May 2008 15:35:55 GMT

Author: j&b
Posted: Tue May 13, 2008 3:35 pm (GMT 0)

Sergey Tkachenko wrote:

Do you want to move caret to the specified Y position?

Code:

var RVData:TCustomRVFormattedData;
ItemNo, OffsetInItem: Integer;

rv.GetItemAt(0, Y, RVData, ItemNo, OffsetInItem, False);
RVData := TCustomRVFormattedData(RVData.Edit);
RVData.SetSelectionBounds(ItemNo, OffsetInItem, ItemNo, OffsetInItem);

Thanks. That is it.
For these few lines I try many hours ....

Support :: RE: cursor is hidden after using rve.scrollTo

Sergey Tkachenko — Tue, 13 May 2008 15:28:37 GMT

Author: Sergey Tkachenko
Posted: Tue May 13, 2008 3:28 pm (GMT 0)

Do you want to move caret to the specified Y position?

Code:

Support :: RE: cursor is hidden after using rve.scrollTo

j&b — Tue, 13 May 2008 15:11:09 GMT

Author: j&b
Posted: Tue May 13, 2008 3:11 pm (GMT 0)

Sergey Tkachenko wrote:

ScrollTo just scrolls the editor's window to the specified scrollbar position.
The caret is still in the same location as before, and if this is location becomes invisible, the caret becomes invisible too.

You need to deside what do you want to change - the caret location of vertical position.

Thanks.

I can jump to each line (problem font.size or number of lines of a paragraph), but not to the line near a wanted memo-y-position)

I have a database rve-memo and have to write a topic always to the same place of each memo (perhaps I change font.size or number of lines of a paragraph or I change memo and have to write a topic at the same position ... .

"rve.GetItemCoords(rve.CurItemNo,x,rveYpos)" tells me y-position of wanted place (for a topic)
By clicking a button I jump to "rveYpos" whether font.size or number of lines of a paragraph have changed in meantime.

Support :: RE: RvHtmlImporter v0.0027 bugs

Sergey Tkachenko — Tue, 13 May 2008 14:50:15 GMT

Author: Sergey Tkachenko
Posted: Tue May 13, 2008 2:50 pm (GMT 0)

I cannot reproduce this problem with spaces. Please send me this HTML file to svt@trichview.com

Support :: RE: gif animation

Sergey Tkachenko — Tue, 13 May 2008 14:46:45 GMT

Author: Sergey Tkachenko
Posted: Tue May 13, 2008 2:46 pm (GMT 0)

It's very simple.
1) Set RichView1.AnimationMode := rvaniOnFormat.
2) Include the unit RVGifAnimate2007 in your project.
3) Call RegisterClass(TGifImage) one time, before the first loading.
Now you can insert gif animations like any other graphic in TRichView, using TGifImage class (from GifImg unit shipped with Delphi 2007)

As for sending data between computers, this part of code is not related to TRichView. You can send gif file (or rvf file containing gif), receive it, then load like local files.