#10 Make Cut/Paste etc as editing actions in DBSynEdit

[Nashev]

There are FDataLink.Edit in TDBSynEdit.DragDrop and
TDBSynEdit.ExecuteCommand only.

WMCut etc messages and ExecuteAction method is
calling clipboard functions directly and finally don't call
FDataLink.Edit.

One way to correct it - make my changes, written here
later.

Another (best, i think) way - write procedure
BeforeChange, call it in every proper places and override
it in TDBSynEdit for call FDataLink.Edit in it...

********
procedure TCustomSynEdit.WMCopy(var Message:
TMessage);
begin
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< CopyToClipboard;
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mode to
> ExecuteCommand(ecCopy, #0, nil);
> // -->> IC Nashev
Message.Result := ord(True);
end;
********
procedure TCustomSynEdit.WMCut(var Message:
TMessage);
begin
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< if CanModify then
< CutToClipboard;
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mode to
> ExecuteCommand(ecCut, #0, nil);
> // -->> IC Nashev
Message.Result := ord(True);
end;
********
procedure TCustomSynEdit.WMPaste(var Message:
TMessage);
begin
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< if CanModify then
< PasteFromClipboard;
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mode to
> ExecuteCommand(ecPaste, #0, nil);
> // -->> IC Nashev
Message.Result := ord(True);
end;
********
SpaceCount1: Integer;
SpaceCount2: Integer;
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< SpaceCount3: Integer;
---
> //SpaceCount3: Integer;
ModCounter: Integer;
BackCounter: Integer;
********
if BackCounter = 0 then BackCounter :=
FTabWidth;

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< SpaceCount3 := LeftSpaces(TabBuffer);
---
> {SpaceCount3 := }
LeftSpaces(TabBuffer);
SpaceCount1 := 0;
ModCounter := 0;
********
procedure TCustomSynEdit.ClearSelection;
begin
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> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mode to
if SelAvail then
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< SelText := '';
---
> ExecuteCommand(ecDeleteChar, #0, nil);
> // -->> IC Nashev
end;

********
Result := True;
if Action is TEditCut then
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< CutToClipboard
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mod
> ExecuteCommand(ecCut, #0, nil)
> // -->> IC Nashev
else if Action is TEditCopy then
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< CopyToClipboard
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mod
> ExecuteCommand(ecCopy, #0, nil)
> // -->> IC Nashev
else if Action is TEditPaste then
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< PasteFromClipboard
---
> // <<-- IC Nashev: to exec ExecuteCommand in
DBSynEdit to set Edit mod
> ExecuteCommand(ecPaste, #0, nil)
> // -->> IC Nashev
{$IFDEF SYN_COMPILER_5_UP}
else if Action is TEditDelete then