RAEdit.txt

RAEdit is an attemt to create a custom code edit control
as a replacement for the richedit control.
If it gets any good I will replace the richedit in RadASM.

IMPORTANT:
Version 1.1.0.0 introduces collapse/expand blocks that are not backwards compatible.
- Use REM_ADDBLOCKDEF message or call SetBlockDef to set block definitions.
  A parameter of 0 resets the block definitions.
  There can be a maximum of 32 block definitions.
- REM_SETBLOCKS does not have any lpRABLOCKDEF parameter and needs only be called once
  for a newly opened file.
- REM_COLLAPSE and REM_COLLAPSEALL does not have any lpRABLOCKDEF parameter.

Features:
---------

- Syntax hiliting with colors, bold and italic.
- Syntax word list with color and font options for each group.
- Line hiliting.
- Selection bar with optional line numbers.
- Bookmarks.
- Collapse/expand blocks.
- Access to internal structures for fast on the fly code analysis/modify.
- Unlimitted undo/redo, not lost on save.
- EN_SELCHANGE reports selection, line number, line start character
  position and a pointer to line structure for line analysis. No waste of
  time to get these things.
- Button in upper right corner is a splitter bar.
- Buttons in lower left corner:
   1. Show/hide line numbers.
   2. Collapse all blocks
   3. Expand all blocks
   4. Lock.

Todo:
-----

- Speed optimizing block insert/delete

Build.
------
To build the dll, use Release build.
To build the library, use Debug build.

Styles.
-------

STYLE_NOSPLITT				No splitt button
STYLE_NOLINENUMBER			No linenumber button
STYLE_NOCOLLAPSE			No expand/collapse buttons
STYLE_NOHSCROLL				No horizontal scrollbar
STYLE_NOVSCROLL				No vertical scrollbar
STYLE_NOHILITE				No color hiliting
STYLE_NOSIZEGRIP			No size grip
STYLE_NODBLCLICK			No action on double clicks
STYLE_READONLY				Text is locked
STYLE_NODIVIDERLINE			Blocks are not divided by line
STYLE_NOBACKBUFFER			Drawing directly to screen DC
STYLE_NOSTATE				No state indicator
STYLE_DRAGDROP				Drag & Drop support, app must load ole
STYLE_SCROLLTIP				Scrollbar tooltip
STYLE_HILITECOMMENT			Comments are hilited
STYLE_AUTOSIZELINENUM		Line number column autosizes
STYLE_NOLOCK				No lock button

Messages:
---------

REM_SETHILITEWORDS
wParam=Color
lParam=lpszWords
Color	gggg0sff cccccccc cccccccc cccccccc
		g=Word group, s=Case sensitive, f=Font style, c=Color
The return value is zero.

REM_SETFONT
wParam=0
lParam=lpRAFONT
The return value is zero.

REM_GETFONT
wParam=0
lParam=lpRAFONT
The return value is the linespace.

REM_SETCOLOR
wParam=0
lParam=lpRACOLOR
The return value is zero.

REM_GETCOLOR
wParam=0
lParam=lpRACOLOR
The return value is zero.

REM_SETHILITELINE
wParam=Line
lParam=nColor
nColor 0 to 3
The return value is zero.

REM_GETHILITELINE
wParam=Line
lParam=0
The return value is the hilite index (0 to 3) or -1 if the line number is greater than the number of lines in the edit control.

REM_SETBOOKMARK
wParam=Line
lParam=nType
nType 0 to 15
The return value is the bookmark id or zero if the line number is greater than the number of lines in the edit control.

REM_GETBOOKMARK
wParam=Line
lParam=0
The return value is the bookmark type (0 to 15) or  -1 if the line number is greater than the number of lines in the edit control.

REM_CLRBOOKMARKS
wParam=0
lParam=nType
The return value is zero.

REM_NXTBOOKMARK
wParam=Line
lParam=nType
nType 0 to 15
The return value is the next line number or -1 if there are no more bookmarks of the specified type.

REM_PRVBOOKMARK
wParam=Line
lParam=nType
nType 0 to 15
The return value is the previous line number or -1 if there are no more bookmarks of the specified type.

REM_FINDBOOKMARK
wParam=BmID
lParam=0
The return value is the line number of the bookmark or -1 if not found.

REM_SETBLOCKS
wParam=[lpLINERANGE]
lParam=0
The return value is zero.

REM_ISLINE
wParam=Line
lParam=lpszDef
Returns zero if conditions are met, otherwise the return value is -1.

REM_GETWORD
wParam=BuffSize
lParam=lpBuff
Returns the number of characters copied.


REM_COLLAPSE
wParam=Line
lParam=0
This message does not return a value.

REM_COLLAPSEALL
wParam=0
lParam=0
This message does not return a value.

REM_EXPAND
wParam=Line
lParam=0
Returns the number of lines expanded.

REM_EXPANDALL
wParam=0
lParam=0
This message does not return a value.

REM_LOCKLINE
wParam=Line
lParam=TRUE/FALSE
This message does not return a value.

REM_ISLINELOCKED
wParam=Line
lParam=0
Returns TRUE if locked, otherwise the return value is zero.

REM_HIDELINE
wParam=Line
lParam=TRUE/FALSE
Returns TRUE if the line was hidden, otherwise the return value is zero.

REM_ISLINEHIDDEN
wParam=Line
lParam=0
Returns TRUE if hidden, otherwise the return value is zero.

REM_AUTOINDENT
wParam=0
lParam=TRUE/FALSE
The return value is lParam

REM_TABWIDTH
wParam=nChars
lParam=0
The return value is zero.

REM_SELBARWIDTH
wParam=nWidth
lParam=0
The return value is zero.

REM_LINENUMBERWIDTH
wParam=nWidth
lParam=0
The return value is zero.

REM_MOUSEWHEEL
wParam=nLines
lParam=0
The return value is wParam

REM_SUBCLASS
wParam=0
lParam=lpWndProc
The return value is the previous WndProc.

REM_SETSPLIT
wParam=nSplit
lParam=0
This message does not return a value.

REM_GETSPLIT
wParam=0
lParam=0
The return value is the splitt size.

REM_VCENTER
wParam=0
lParam=0
The return value is zero.

REM_REPAINT
wParam=0
lParam=TRUE/FALSE (Paint Now)
The return value is zero.

REM_BMCALLBACK
wParam=0
lParam=lpBmProc
The return value is lParam

REM_READONLY
wParam=0
lParam=TRUE/FALSE
The return value is zero.

REM_INVALIDATELINE
wParam=Line
lParam=0
The return value is zero.

REM_SETPAGESIZE
wParam=nLines
lParam=0
The return value is zero.

REM_GETPAGESIZE
wParam=0
lParam=0
The return value is the number of lines in a page.

REM_GETCHARTAB
wParam=nChar
lParam=0
The return value is the character type.

REM_SETCHARTAB
wParam=nChar
lParam=nValue
The return value is lParam.

REM_SETCOMMENTBLOCKS
wParam=lpStart
lParam=lpEnd
This message does not return a value.

REM_SETWORDGROUP
wParam=0
lParam=nGroup (0-15)
The return value is lParam.

REM_GETWORDGROUP
wParam=0
lParam=0
The return value is the word group.

REM_SETBMID
wParam=nLine
lParam=nBmID
This message does not return a value.

REM_GETBMID
wParam=nLine
lParam=0
The return value is the bookmark id.

REM_ISCHARPOS
wParam=CP
lParam=0
returns:
0 if normal
1 if comment block
2 if comment
3 if string

REM_HIDELINES
wParam=nLine
lParam=nLines
The return value is the number of lines hidden.

REM_SETDIVIDERLINE
wParam=nLine
lParam=TRUE/FALSE
The return value is zero.

REM_ISINBLOCK
wParam=nLine
lParam=lpRABLOCKDEF
The return value is TRUE if in the block, otherwise the return value is zero.

REM_TRIMSPACE
wParam=nLine
lParam=fLeft
This message does not return a value.

REM_SAVESEL
wParam=0
lParam=0
The return value is zero.

REM_RESTORESEL
wParam=0
lParam=0
The return value is zero.

REM_GETCURSORWORD
wParam=BuffSize
lParam=lpBuff
The return value is the line number.

REM_SETSEGMENTBLOCK
wParam=nLine
lParam=TRUE/FALSE
The return value is zero.

REM_GETMODE
wParam=0
lParam=0
The return value is the mode.

REM_SETMODE
wParam=nMode
lParam=0
The return value is zero.

REM_GETBLOCK
wParam=0
lParam=lpBLOCKRANGE
The return value is zero.

REM_SETBLOCK
wParam=0
lParam=lpBLOCKRANGE
The return value is zero.

REM_BLOCKINSERT
wParam=0
lParam=lpText
The return value is zero.

REM_LOCKUNDOID
wParam=TRUE/FALSE
lParam=0
The return value is zero.

REM_ADDBLOCKDEF
wParam=0
lParam=lpRABLOCKDEF
The return value is zero.

REM_CONVERT
wParam=nType
lParam=0
Convert types
CONVERT_TABTOSPACE
CONVERT_SPACETOTAB
CONVERT_UPPERCASE
CONVERT_LOWERCASE
The return value is zero.

REM_BRACKETMATCH
wParam=0
lParam=lpDef {[(,}]),_
The return value is zero.

REM_COMMAND
wParam=nCommand
lParam=0
The return value is zero.

REM_CASEWORD
wParam=0
lParam=lpWord
The return value is zero.

REM_GETBLOCKEND
wParam=nLine
lParam=0
The return value is the line number if in block, otherwise the return value is -1.

REM_SETLOCK
wParam=TRUE/FALSE
lParam=0
The return value is zero.

REM_GETLOCK
wParam=0
lParam=0
The return value is TRUE if locked, otherwise the return value is zero.

REM_GETWORDFROMPOS
wParam=cp
lParam=lpBuff
The return value is the number of characters copied.

REM_SETNOBLOCKLINE
wParam=Line
lParam=TRUE/FALSE
This message does not return a value.

REM_ISLINENOBLOCK
wParam=Line
lParam=0
The return value is TRUE if the line is noblock, otherwise the return value is zero.

REM_SETALTHILITELINE
wParam=nLine
lParam=TRUE/FALSE
This message does not return a value.

REM_ISLINEALTHILITE
wParam=nLine
lParam=0
The return value is TRUE if the line is althilite, otherwise the return value is zero.

REM_SETCURSORWORDTYPE
wParam=Type
lParam=0
The return value is wParam.

REM_SETBREAKPOINT
wParam=nLine
lParam=TRUE/FALSE
This message does not return a value.

REM_NEXTBREAKPOINT
wParam=nLine
lParam=0
The return value is the line number of the next breakpoint, otherwise the return value is -1.

REM_GETLINESTATE
wParam=nLine
lParam=0
The return value is the linestate.

REM_SETERROR
wParam=nLine
lParam=nErrID
This message does not return a value.

REM_GETERROR
wParam=nLine
lParam=0
The return value is the error id.

REM_NEXTERROR
wParam=nLine
lParam=0
The return value is the line number of the next error, otherwise the return value is -1.

REM_CHARTABINIT
wParam=0
lParam=0
This message does not return a value.

EM_EXLINEFROMCHAR
wParam=0
lParam=cp
Returns the zero-based index of the line.

EM_EXSETSEL
wParam=0
lParam=lpCHARRANGE
Returns the zero-based index of the line or -1 if in block mode.

EM_EXGETSEL
wParam=0
lParam=lpCHARRANGE
No return value.

EM_FINDTEXTEX
wParam=Flags
lParam=lpFINDTEXTEX
Returns the zero-based character position of the next match or -1 if there are no more matches.

EM_FORMATRANGE
wParam=fRender
lParam=lpFORMATRANGE
Returns the index of the last character that fits in the region plus one.

EM_GETTEXTRANGE
wParam=0
lParam=lpTEXTRANGE
Returns the number of characters copied, not including the terminating null character.

EM_FINDWORDBREAK
wParam=uFlags (WB_MOVEWORDLEFT or WB_MOVEWORDRIGHT)
lParam=cp
Returns the character index of the word break.

EM_CANREDO
wParam=0
lParam=0
If the edit control can correctly process the EM_REDO message, the return value is TRUE; otherwise, it is FALSE.

EM_REDO
wParam=0
lParam=0
The return value is TRUE if the redo operation is successful, or FALSE if the redo operation fails.

EM_HIDESELECTION
wParam=TRUE/FALSE
lParam=0
No return value.

EM_GETSELTEXT
wParam=0
lParam=lpBuff
Returns the number of characters copied, not including the terminating null character.

EM_CANPASTE
wParam=CF_TEXT
lParam=0
Returns a nonzero value if the clipboard format can be pasted or zero otherwise.

EM_STREAMIN
wParam=SF_TEXT
lParam=lpStream
Returns the number of characters read.

EM_STREAMOUT
wParam=SF_TEXT
lParam=lpStream
Returns the number of characters written to the data stream.

EM_CHARFROMPOS
wParam=0
lParam=lpPoint
The return value specifies the character index in the low-order word and the line index in the high-order word.
The return value is the last character in the edit control if the given point is beyond the last character in the control.
The return value is -1 if the specified point is outside the client area of the edit control.

EM_POSFROMCHAR
wParam=lpPoint
lParam=cp
This message does not return a value.

EM_LINEFROMCHAR
wParam=cp
lParam=0
The return value is the zero-based line number of the line containing the character index specified by cp.

EM_LINEINDEX
wParam=line
lParam=0
The return value is the character index of the line specified in the line parameter,
or it is -1 if the specified line number is greater than the number of lines in the edit control.

EM_LINELENGTH
wParam=cp
lParam=0
The return value is the length, in characters, of the line specified by the cp parameter.

EM_GETLINE
wParam=Line
lParam=lpBuff
The return value is the number of characters copied.
The return value is zero if the line number specified by the line parameter is greater than the number of lines in the edit control.

EM_GETFIRSTVISIBLELINE
wParam=0
lParam=0
The return value is the zero-based index of the uppermost visible line.

EM_LINESCROLL
wParam=cxScroll
lParam=cyScroll
The return value is TRUE.

EM_SCROLLCARET
wParam=0
lParam=0
The return value is nonzero.

EM_SETSEL
wParam=cpMin
lParam=cpMax
This message does not return a value.

EM_GETSEL
wParam=lpcpMin
lParam=lpcpMax
The return value is a zero-based 32-bit value with the starting position of the selection in the low-order word and the position of the first character after the last selected character in the high-order word.
If either of these values exceeds 65535, the return value is -1.

EM_GETMODIFY
wParam=0
lParam=0
If the content of edit control has been modified, the return value is TRUE; otherwise, it is FALSE.

EM_SETMODIFY
wParam=TRUE/FALSE
lParam=0
This message does not return a value.

EM_REPLACESEL
wParam=TRUE/FALSE
lParam=lpText
This message does not return a value.

EM_GETLINECOUNT
wParam=0
lParam=0
The return value is an integer specifying the number of lines in the edit control.
If no text is in the edit control, the return value is 1.

EM_GETRECT
wParam=0
lParam=lpRECT
The return value is not a meaningful value.

EM_CANUNDO
wParam=0
lParam=0
If the edit control can correctly process the EM_UNDO message, the return value is TRUE; otherwise, it is FALSE.

EM_UNDO
wParam=0
lParam=0
The return value is TRUE if the undo operation is successful, or FALSE if the undo operation fails.

EM_EMPTYUNDOBUFFER
wParam=0
lParam=0
This message does not return a value.

WM_COPY
wParam=0
lParam=0
This message does not return a value.

WM_CUT
wParam=0
lParam=0
This message does not return a value.

WM_PASTE
wParam=0
lParam=0
This message does not return a value.

WM_CLEAR
wParam=0
lParam=0
This message does not return a value.

WM_SETTEXT
wParam=0
lParam=lpszText
The return value is TRUE.

WM_GETTEXT
wParam=cbBuff
lParam=lpBuff
The return value is the number of characters copied.

WM_GETTEXTLENGTH
wParam=0
lParam=0
The return value is the length, in characters, of the text.

KetilO