*** please note this class is currently seriously broken *** Multiline edit with optional word wrap. More...

Inheritance diagram for Laxkit::MultiLineEdit:

Classes
struct	Linestat
	Holds information about the screen lines. More...

Public Member Functions
	MultiLineEdit (anXWindow prnt, const char nname, const char ntitle, unsigned long nstyle, int xx, int yy, int ww, int hh, int brder, anXWindow prev, unsigned long nowner=0, const char nsend=NULL, unsigned int ntstyle=0, const char newtext=NULL)
	Constructor.
virtual	~MultiLineEdit ()
	Destructor, delete linestats.
virtual void	UseTheseScrollers (Scroller xscroll, Scroller yscroll)
	Use these external scrollers, rather than dynamically add and remove them.
virtual int	init ()
virtual int	Event (const EventData e, const char mes)
virtual int	CharInput (unsigned int ch, const char buffer, int len, unsigned int state, const LaxKeyboard d)
virtual int	LBDown (int x, int y, unsigned int state, int count, const LaxMouse *d)
virtual int	LBDblClick (int x, int y, unsigned int state, const LaxMouse *d)
	Selects whole word.
virtual int	LBUp (int x, int y, unsigned int state, const LaxMouse *d)
	Button up, nothing special.
virtual int	RBDown (int x, int y, unsigned int state, int count, const LaxMouse *d)
	Button down, nothing special.
virtual int	RBUp (int x, int y, unsigned int state, const LaxMouse *d)
	Button up, nothing special.
virtual int	WheelDown (int x, int y, unsigned int state, int count, const LaxMouse *d)
	Roll screen.
virtual int	WheelUp (int x, int y, unsigned int state, int count, const LaxMouse *d)
	Roll screen.
virtual int	MouseMove (int x, int y, unsigned int state, const LaxMouse *d)
virtual int	Idle (int tid=0)
virtual int	Resize (int nw, int nh)
virtual int	MoveResize (int nx, int ny, int nw, int nh)
virtual int	Find (char *str, int fromcurs=1)
	Find occurence of str, starting from position curpos if fromcurs==1.
virtual int	Replace (const char oldstr, const char newstr, int all)
virtual int	SetText (const char *newtext)
	Set the text, and remap the screen.
virtual long	SetCurPos (long newcurpos)
	Jump to this new position.
virtual int	SetSelection (long newss, long newse)
	Set the selection to these bounds.
virtual int	newyssize ()
virtual int	newxssize (int p=1)
	Make sure the scrollers are correct for current line widths.
virtual void	wwinspect (int fromline=0)
	Try to figure out if screen still laid out correctly based on word wrapping.
virtual int	inschar (int ch)
	Insert character ch at curpos.
virtual int	delchar (int bksp)
	Delete character at curpos. bksp==0 means curpos, else curpos-1.
virtual int	insstring (const char *blah, int after=0)
	Insert a string. If after!=0 then place curpos after the string.
virtual int	replacesel (int ch)
	Replace the selection with this character.
virtual int	delsel ()
	Delete selection.
virtual int	getscreenline (long pos)
	Return the screen line corresponding to character pos.
virtual int	replacesel (const char *newt, int after=0)
virtual long	findpos (int l, int pix, int updatecp=1, int conv=1)
	Returns position most appropriate for x=pix, y=screen line l.
virtual long	countout (int linenumber, int &pout)
	Find character position for screen line number linenumber and horizontal pixel pout.
virtual int	makeinwindow ()
	Make sure curpos is in the window somewhere (shifts screen, does not change curpos.
virtual void	findcaret ()
virtual int	ShiftScreen (int x, long y)
	Shift the view by x pixels and y lines.
virtual int	isword (long pos)
	Return whether position pos is part of a word. Default is alphanumeric or a period.
virtual long	findline (long ls, int &ilsofar)
virtual long	findlinestart (long pos=-1)
	Find what should be the start of the screen line that contains pos.
virtual int	makelinestart (int startline, long ulwc, int godown, int ifdelete)
	Remaps linestats, but does not findcaret.
virtual int	Getmostwide ()
	Returns which line is the most pixels wide.
virtual long	WhichLine (long pos)
	Return which screen line pos is in.
virtual void	DrawText (int black=1)
	Draw the screen.
virtual int	SetupMetrics ()
	Call TextXEditBaseUtf8::SetupMetrics(), set firsttime=0, and SetupScreen().
virtual void	SetupScreen ()
virtual LaxFiles::Attribute *	dump_out_atts (LaxFiles::Attribute att, int what, Laxkit::anObject savecontext)
virtual void	dump_in_atts (LaxFiles::Attribute att, int flag, Laxkit::anObject loadcontext)
Public Member Functions inherited from Laxkit::TextXEditBaseUtf8
	TextXEditBaseUtf8 (anXWindow parnt, const char nname, const char ntitle, unsigned long nstyle, int xx, int yy, int ww, int hh, int brder, anXWindow prev, unsigned long nowner, const char nsend, const char newtext=NULL, unsigned long ntstyle=0, int ncntlchar=0)
virtual	~TextXEditBaseUtf8 ()
virtual void	Refresh ()
virtual int	MBUp (int x, int y, unsigned int state, const LaxMouse *d)
	Initiate a middle button paste via selectionPaste(1,0).
virtual int	FocusOn (const FocusChangeData *e)
	Draws the caret on.
virtual int	FocusOff (const FocusChangeData *e)
	Draws the caret off.
virtual int	charwidth (int ch, int r=0)
	Returns real char width with r==1, else returns the custom hexified if r==0.
virtual int	Cut ()
	Copy() then delsel().
virtual int	Copy ()
	Calls anXApp::CopytoBuffer() with the current selection.
virtual int	Paste ()
	Utilizes anXApp::GetBuffer().
virtual void	Colors (int hl)
	Set curtextcolor and curbkcolor according to whether highlighting is on or not.
virtual void	Black (int x, int y, int w, int h)
	Fill x,y,w,h with curbkcolor.
virtual int	DrawTabLine ()
	Draw a marker at top of text area that shows where and what type of tabs exist for the line.
virtual void	DrawCaret (int flag=0, int on=1)
	Update the caret and if necessary the change in the selection.
virtual int	DrawLineOfText (int x, int y, long pos, long len, char &check, long eof=-1)
	Draw a single line of text.
virtual int	TextOut (int x, int y, char *str, long len, long eof)
	Print out len bytes of str, which is a pointer to somewhere inside thetext.
virtual int	ExtentAndStr (char str, long len, char &blah, long &p)
	Find a printable string, and its pixel extent.
virtual int	GetExtent (long pos, long end, int lsofar=0, long eof=-1)
	Find the extent of the string in range [pos,end). Must be no newlines within the range.
virtual long	GetPos (long pos, int pix, int lsofar=0, long eof=-1)
	Returns maximum pos less than or equal to an arbitrary window pixel position.
virtual int	UseThisFont (LaxFont *newfont)
Public Member Functions inherited from Laxkit::anXWindow
	anXWindow (anXWindow parnt, const char nname, const char ntitle, unsigned long nstyle, int xx, int yy, int ww, int hh, int brder, anXWindow prev, unsigned long nowner, const char *nsend)
	Constructor.
virtual	~anXWindow ()
	anXWindow destructor. Its X window should have been XDestroy'd before here.
virtual const char *	whattype ()
virtual const char *	WindowTitle (int which=0)
	Return basically the name of the window.
virtual void	WindowTitle (const char *newtitle)
	Change the title of the window. This text would usually be displayed in the bar provided by a window manager.
virtual const char *	tooltip (int mouseid=0)
	By default, return win_tooltip.
virtual const char *	tooltip (const char *newtooltip)
	Replace the current tooltip, return the current tooltip (after replacing).
virtual anXWindow *	findChildWindowByTitle (const char *title)
	Find the first immediate child window that has win_title==title.
virtual anXWindow *	findChildWindowByName (const char *name)
	Find the first immediate child window that has win_name==name.
virtual int	Grayed ()
	Return whether this window is grayed.
virtual int	Grayed (int g)
	Set the gray state of this window. Returns Grayed(void).
virtual int	preinit ()
virtual int	close ()
	Called by anXApp from anXApp::destroywindow() when a window is to be destroyed.
virtual Displayer *	MakeCurrent ()
virtual int	Needtodraw ()
	Default is to return needtodraw.
virtual void	Needtodraw (int nntd)
	If 0, then the window does not need refreshing. Otherwise it does.
virtual int	deletenow ()
	Return whether the window is allowed to be deleted.
virtual int	setWinStyle (unsigned int stylebit, int newvalue)
	Control various window related basic styling of win_style.
virtual int	getWinStyle (unsigned int stylebit)
	Currently, simply return win_style&stylebit.
virtual void	installColors (WindowColors *newcolors)
	Dec_count old and inc_count new.
virtual ShortcutHandler *	GetShortcuts ()
	Return a ShortcutHandler that contains stacks of bound shortcuts and possible window actions.
virtual int	PerformAction (int action_number)
virtual int	ExposeChange (ScreenEventData *e)
	Default behavior on Expose events is to call Needtodraw(1).
virtual int	DeviceChange (const DeviceEventData *e)
virtual int	KeyUp (unsigned int ch, unsigned int state, const LaxKeyboard *kb)
	Called when a key is released.
virtual int	ButtonDown (int button, int x, int y, unsigned int state, int count, const LaxMouse *m)
virtual int	ButtonUp (int button, int x, int y, unsigned int state, const LaxMouse *m)
virtual int	MBDown (int x, int y, unsigned int state, int count, const LaxMouse *d)
	Default is just to return 1.
virtual void	contentChanged ()
	Windows may call this when their contents change.
virtual void	selectionChanged ()
	Windows may call this when their selections change.
virtual anXWindow *	GetController ()
	Return the window most relevant for tab control loops.
virtual int	SelectNextControl (const LaxDevice *d)
	Transfer focus to nextcontrol.
virtual int	SelectPrevControl (const LaxDevice *d)
	Transfer the focus to prevcontrol.
virtual void	ControlActivation (int on)
	Do special activation or not when controls are activated by tabbing.
virtual int	AddPrevControl (anXWindow *prev)
virtual int	AddNextControl (anXWindow *next)
virtual int	ConnectControl (anXWindow *towhat, int after=1)
	Connect towhat to this. Used for tab loops.
virtual int	CloseControlLoop ()
	Close a tab loop.
virtual void	SetOwner (anXWindow nowner, const char mes=NULL, unsigned int send_mask=0)
	Set the new owner and control message.
virtual void	SetOwner (unsigned long nowner_id, const char *mes=NULL, unsigned int send_mask=0)
virtual void	dump_out (FILE f, int indent, int what, anObject context)
	Simple dumping function.
Public Member Functions inherited from Laxkit::Tagged
virtual int	HasTag (const char *tag, int casematters)
	Return whether the tag exists.
virtual int	NumberOfTags ()
	Return the number of tags, strangely enough.
virtual const char *	GetTag (int i)
	Return const pointer to the tag text for tag number i, where i==0 is the first tag.
virtual char *	GetAllTags ()
	Return a new char[] with a space separated list of all the tags.
virtual int	InsertTags (const char *tags, int casematters)
	Insert tags from a string such as 'tag1 tag2 tag3 "tag with spaces" tag4'.
virtual int	InsertTag (const char *tag, int casematters)
	Insert tag if it doesn't exist already.
virtual int	RemoveTag (const char *tag)
	The tag must be an exact match.
virtual int	RemoveTag (int i)
	Remove tag number i. i must be in range [0..NumberOfTags()-1].
virtual void	FlushTags ()
Public Member Functions inherited from LaxFiles::DumpUtility
virtual void	dump_in (FILE f, int indent, int what, Laxkit::anObject loadcontext, Attribute **att)
	Read in a file segment as an Attribute, and pass parsing duties to dump_in_atts.
virtual	~DumpUtility ()
	Empty virtual destructor.
Public Member Functions inherited from Laxkit::aDrawable
	aDrawable (Drawable d=0)
virtual int	DrawableType ()
virtual int	ValidDrawable ()
Public Member Functions inherited from Laxkit::TextEditBaseUtf8
	TextEditBaseUtf8 (const char *newtext=NULL, unsigned long nstyle=0, unsigned int ncntlchar=0)
	Constructor.
virtual	~TextEditBaseUtf8 ()
	delete[] thetext and cutbuffer.
virtual int	charwidth (unsigned int usc, int actual=0)
virtual int	GetTabChar (int atpix)
	For CHAR_TABS, returns the character to center on, or 0 if no such tab there.
virtual int	GetNextTab (int atpix)
	Redefine for custom tabstops, default is even spacing with tabwidth pixels.
virtual int	GetNextTab (int atpix, int &tabtype)
	Redefine for custom tabstops, default is even spacing with tabwidth pixels.
virtual int	inschar (unsigned int ucs, char a=1)
	Insert character at curpos. Afterward, make curpos on it (a==0) or after (a==1) it. Ignores selection, always at curpos.
virtual int	replacesel (unsigned int ucs)
	Replace the selection with character ch.
virtual int	onlf (long pos=-1)
	Return whether pos is on a delimiter. 0==no, 1==first delimiter, 2==second delimeter.
virtual int	findword (long pos, long &start, long &end)
	Find the start and end of a word that includes position pos.
virtual int	readonly (long pos=-1)
	Returns if the text is readonly at the given position.
virtual const char *	GetCText ()
	Return a const pointer to thetext.
virtual char *	GetText ()
	Return a new char[] copy of thetext.
virtual char *	GetSelText ()
	Return a new char[] copy of the selected text.
virtual char *	CutSelText ()
	Cut out the selected text, and return a copy to a new char[] containing the text.
virtual long	GetSelection (long &sels, long &sele)
	Get information about the selection positions.
virtual long	Getnumlines ()
	Return the number of newlines in the whole buffer.
virtual long	Getnlines (long s=-1, long e=-1)
	Return the number of newlines in range [s,e].
virtual long	Getcharswide ()
	Returns most characters wide in all of lines of thetext.
virtual int	Getpixwide (long linenum)
	Return pix wide of line from p to newline.
virtual int	Modified (int m=1)
virtual int	Undo ()
virtual int	Redo ()
virtual long	GetCurLine ()
virtual long	SetCurLine (long nline)
virtual long	GetCurpos ()
virtual long	SetCurpos (long ncurpos)
	Returns new curpos.
virtual int	SetDelimiter (char n1, char n2=0)
	Set the newline delimiter to "n1n2". n2==0 means use single character newline.
virtual int	Find (const char *str, int fromcurs=1)
	Find str in thetext, start search at fromcurs, wrap around.
virtual int	Replace (const char *newstr, int start, int end)
	Replace a range of text with a new string.

Public Attributes
int	padx
int	pady

Protected Member Functions
virtual int	send ()
Protected Member Functions inherited from Laxkit::TextXEditBaseUtf8
virtual void	docaret (int w=1)
	Inverts the caret area. DrawCaret is responsible for maintaining con.
virtual void	settextrect ()
	This updates textrect based on new window dimensions.
virtual int	selectionDropped (unsigned char *data, unsigned long len, Atom actual_type, Atom which)
virtual char *	getSelectionData (int *len, Atom property, Atom targettype, Atom selection)
	Return the selected text, or NULL if no selection.
Protected Member Functions inherited from Laxkit::anXWindow
virtual int	deletekid (anXWindow *w)
	Purges child anXWindows from window's child stack.
virtual void	SwapBuffers ()
	Swap buffers. This should be called from Refresh() if VIEWPORT_BACK_BUFFER is set in win_style.
virtual void	SetupBackBuffer ()
	Initialize the backbuffer.
Protected Member Functions inherited from Laxkit::TextEditBaseUtf8
virtual int	extendtext ()
	Extend the memory allocated for thetext.
virtual long	nextpos (long l)
	Return the next utf8 character position after l.
virtual long	prevpos (long l)
	Return the utf8 character position befor l.
virtual void	makevalidpos (long &l)
	Make l point only to 1st byte of a utf8 char or 2-char delimiter.
virtual int	Undo (UndoData *data)
virtual int	Redo (UndoData *data)
virtual int	AddUndo (int type, const char *str, long len, long start, long end)

Protected Attributes
char *	blanktext
ButtonDownInfo	buttondown
int	cdir
int	scrollwidth
int	mostpixwide
int	mostcharswide
int	maxpixwide
int	numlines
int	lpers
	The number of lines per screen.
int	longestline
int	mx
int	my
struct Laxkit::MultiLineEdit::Linestat *	linestats
	Holds the character start position, pixel length, and pixel indentation of a screen line.
Scroller *	xscroller
Scroller *	yscroller
int	xscrollislocal
int	yscrollislocal
Protected Attributes inherited from Laxkit::TextXEditBaseUtf8
int	cx
	The x position of the current position, measured from the top left corner of the window.
int	cy
	The baseline y position of the current line, measured from the top left corner of the window.
int	oldx
	The old value of cx for a caret that might need to be blanked out.
int	oldy
	The old value of cy for a caret that might need to be blanked out.
int	curlineoffset
	The pixel horizontal offset the text is shifted.
char	firsttime
char	con
	Nonzero if the caret is supposed to be on, and is drawn on, on the screen.
long	dpos
	The beginning position in thetext that needs to be redrawn.
long	nlines
	The number of lines starting from the line of dpos that must be redrawn.
long	oldsellen
	The previous selection length to help narrow down what on screen must be redrawn.
long	oldcp
	The previous curpos to help narrow down what on screen must be redrawn.
int	textascent
int	textheight
int	textdescent
unsigned long	curtextcolor
unsigned long	textbgcolor
unsigned long	curbkcolor
unsigned long	bkwrongcolor
unsigned long	wscolor
LaxFont *	thefont
int	valid
	An extra modifier to control what colors are used.
DoubleRectangle	textrect
	The rectangle inside of which text can be drawn.
Protected Attributes inherited from Laxkit::anXWindow
char *	win_tooltip
	Convenience variable to hold the window's tooltip, if any.
int	needtodraw
RefPtrStack< anXWindow >	_kids
	Stack of children of the window.
Protected Attributes inherited from Laxkit::Tagged
PtrStack< char >	list_of_tags
Protected Attributes inherited from Laxkit::TextEditBaseUtf8
long	curline
long	curpos
long	selstart
long	sellen
int	cntlmovedist
int	tabwidth
char *	thetext
char *	cutbuffer
long	textlen
long	maxtextmem
char	newline
char	newline2
char	cntlchar
char	modified
long	maxtextlen
long	mintextlen
long	maxcharswide
long	mincharswide
long	maxlines
long	minlines
unsigned long	textstyle
int	undomode
UndoManager	undomanager

Detailed Description

*** please note this class is currently seriously broken *** Multiline edit with optional word wrap.

Optional scrollers, handles l/r/c/char tabs, simple l/r/c justification.

 NOTES:
 *** means not yet implemented..
  Usual char codes:
  ESC         get out of any control modes, deselect selection ***
  ^l          put in/out select line mode ***
  ^left,^right  jump word left or right
  ^up,^down   jump to first/last line on screen
  ^a          select all
  ^c/C, ^ins  copy
  ^x/X, +del  cut
  ^v/V  +ins  paste
  ^w          toggle word wrap
  ^+w         toggle show whitespace
  ^.          increase tab width
  ^,          decrease tab width
  ^t ???      set l/r/c/n tab *** slide around a guide??? ***
              rm tab***
  ^\          toggle show hex chars

  lbdbl       select word***
  lbtrp       select line***
  rb-drag     ShiftScreen***
  wheel       move y
  ^wheel      move page y
  +wheel      move x
  ^+wheel     move page x

Todo:: *** lots of stuff, particularly adding scrollers, see class description....

 #define GOODEDITWW_FILL_LR_BOX   <-- make x,y scrollers cover up the little box in lower right
 #define GOODEDITWW_ABS_SCROLLERS <-- use some definite rectangle, and don't unmap??? huh?
 #define GOODEDITWW_Y_IS_LINES    <-- if scrollers show line span or character span
 #define GOODEDITWW_Y_IS_CHARS
 
 <pre> 
  TODO
  *** smart refreshing when moving screen XMoveArea.. make sure little windows on top dealt with ok?? how??
  *** make a window for tab position editing??
  
  *** might be useful to have a charwidth(long pos) for strange fonts??
  *** center and right justified
  
  *** wheel up doing weird
  *** not blacking out when add lines at eof
  *** not drawing final box for eof if eof on its own line
  *** deleting lines no good
  *** makeinwindow? not dealing with right edge after textrect change
  *** select, then focus out, then click on, and old selection is not removed
  *** end on wrapped lines now not going to end (this is actually a feature!! though should make cursor at fake-eol
        equivalent to cursor at beg of next line for wrapped lines
  *** wwinspect doesn't seem to be working well, inschars allowed to go beyond maxpixlen
  FOR FANCY
  put this in a derived class?:
  ^t then arrows to position tab, l/r/c/n selects type, ^arrows selects current tabs, ESC escapes
 </pre>

Member Function Documentation

int Laxkit::MultiLineEdit::delchar ( int bksp )

virtual

Delete character at curpos. bksp==0 means curpos, else curpos-1.

*** this is rather convoluted, rethink it

Reimplemented from Laxkit::TextEditBaseUtf8.

References Laxkit::TextEditBaseUtf8::delchar(), Laxkit::TextXEditBaseUtf8::dpos, findcaret(), Getmostwide(), linestats, lpers, makeinwindow(), makelinestart(), newxssize(), newyssize(), Laxkit::TextXEditBaseUtf8::nlines, Laxkit::TextEditBaseUtf8::onlf(), and wwinspect().

int Laxkit::MultiLineEdit::delsel ( )

virtual

Delete selection.

*** a little messy here

Reimplemented from Laxkit::TextEditBaseUtf8.

References Laxkit::TextEditBaseUtf8::delsel(), Laxkit::TextXEditBaseUtf8::dpos, findcaret(), getscreenline(), makeinwindow(), makelinestart(), newxssize(), newyssize(), and Laxkit::TextXEditBaseUtf8::nlines.

int Laxkit::MultiLineEdit::Event	(	const EventData *	e,
		const char *	mes
	)

virtual

Responds to 'xscroller' and 'yscroller'.

Todo:: *** not sure if this is ok since scrollers use the panner now...

Reimplemented from Laxkit::anXWindow.

References findlinestart(), Laxkit::Scroller::GetCurPos(), Laxkit::Scroller::GetCurPosEnd(), lpers, makelinestart(), newxssize(), newyssize(), and ShiftScreen().

void Laxkit::MultiLineEdit::findcaret ( )

virtual

this assumes curlineoffset set correctly

References Laxkit::TextXEditBaseUtf8::curlineoffset, Laxkit::TextXEditBaseUtf8::cy, Laxkit::TextXEditBaseUtf8::GetExtent(), linestats, lpers, Laxkit::TextEditBaseUtf8::onlf(), and Laxkit::TextXEditBaseUtf8::textrect.

Referenced by delchar(), delsel(), Find(), findpos(), inschar(), insstring(), LBDblClick(), makeinwindow(), Replace(), SetCurPos(), SetSelection(), SetText(), SetupScreen(), ShiftScreen(), and wwinspect().

long Laxkit::MultiLineEdit::findline	(	long	ls,
		int &	ilsofar
	)

virtual

Returns pos of start of next potential screen line after ls, assumes ilsofar set right updates ilsofar which basically becomes pixlen of line with ls.

References Laxkit::TextXEditBaseUtf8::GetExtent(), isword(), Laxkit::TextEditBaseUtf8::nextpos(), Laxkit::TextEditBaseUtf8::onlf(), and Laxkit::TextEditBaseUtf8::prevpos().

Referenced by findlinestart(), makelinestart(), and wwinspect().

long Laxkit::MultiLineEdit::findpos	(	int	l,
		int	pix,
		int	updatecp = `1`,
		int	conv = `1`
	)

virtual

Returns position most appropriate for x=pix, y=screen line l.

Sets curpos to pos near (x,y)=(pix,l)

If conv==1 then l is a pixel value.

References countout(), Laxkit::TextXEditBaseUtf8::curlineoffset, Laxkit::TextXEditBaseUtf8::cy, findcaret(), linestats, lpers, Laxkit::TextEditBaseUtf8::makevalidpos(), Laxkit::TextEditBaseUtf8::nextpos(), Laxkit::TextEditBaseUtf8::onlf(), Laxkit::TextEditBaseUtf8::prevpos(), and Laxkit::TextXEditBaseUtf8::textrect.

Referenced by LBDblClick(), LBDown(), and MouseMove().

int Laxkit::MultiLineEdit::Getmostwide ( )

virtual

Returns which line is the most pixels wide.

Does not recompute linestats.pixlens

References linestats, lpers, Laxkit::Scroller::SetSize(), and Laxkit::TextXEditBaseUtf8::textrect.

Referenced by delchar(), inschar(), makeinwindow(), SetText(), and SetupScreen().

int Laxkit::MultiLineEdit::getscreenline ( long pos )

virtual

Return the screen line corresponding to character pos.

If the position is before the screen, then -1 is returned. If the position is after the screen, then lpers+2 is returned.

*** see also WhichLine()..

References linestats, and lpers.

Referenced by delsel().

int Laxkit::MultiLineEdit::Idle ( int tid = 0 )

virtual

currently empty...

Reimplemented from Laxkit::anXWindow.

int Laxkit::MultiLineEdit::init ( )

virtual

If multilineedit uses outside supplied scrollers, the must be passed into this before init is called. Otherwise new scrollers are created here.

Init sets an initial textrect size, and sets curlineoffset to be at padx.

Reimplemented from Laxkit::TextXEditBaseUtf8.

References Laxkit::TextXEditBaseUtf8::curlineoffset, Laxkit::TextXEditBaseUtf8::settextrect(), and Laxkit::TextXEditBaseUtf8::textrect.

int Laxkit::MultiLineEdit::LBDown	(	int	x,
		int	y,
		unsigned int	state,
		int	count,
		const LaxMouse *	d
	)

virtual

Todo:: *** should put in drag and drop when lbdown on a selection

Reimplemented from Laxkit::anXWindow.

References Laxkit::ButtonDownInfo::down(), findpos(), LBDblClick(), and makeinwindow().

int Laxkit::MultiLineEdit::makeinwindow ( )

virtual

Make sure curpos is in the window somewhere (shifts screen, does not change curpos.

Assumes the caret's cx,cy already set accurately.

References Laxkit::TextXEditBaseUtf8::cy, findcaret(), Getmostwide(), lpers, makelinestart(), newxssize(), newyssize(), Laxkit::Scroller::SetCurPos(), and Laxkit::TextXEditBaseUtf8::textrect.

Referenced by delchar(), delsel(), Find(), inschar(), insstring(), LBDown(), Replace(), SetCurPos(), and SetSelection().

int Laxkit::MultiLineEdit::makelinestart	(	int	startline,
		long	ulwc,
		int	godown,
		int	ifdelete
	)

virtual

Remaps linestats, but does not findcaret.

It does find and set mostpixwide,longestline, dpos,nlines

Todo:: *****put newyssize in mls?

Parameters:

ulwc	Screen line to begin remapping from
godown	Character to place at beginning of screen line startline
ifdelete	If godown<=0, then remap backwards from startline, else forwards from startline 1 to reallocate linestats, else do not reallocate

References Laxkit::TextXEditBaseUtf8::dpos, findline(), findlinestart(), linestats, lpers, Laxkit::TextXEditBaseUtf8::nlines, Laxkit::TextEditBaseUtf8::onlf(), and Laxkit::TextEditBaseUtf8::prevpos().

Referenced by delchar(), delsel(), Event(), insstring(), makeinwindow(), SetText(), SetupScreen(), ShiftScreen(), and wwinspect().

int Laxkit::MultiLineEdit::MouseMove	(	int	x,
		int	y,
		unsigned int	state,
		const LaxMouse *	d
	)

virtual

Todo:: institute drag and drop for selections

Reimplemented from Laxkit::anXWindow.

References findpos(), Laxkit::ButtonDownInfo::isdown(), lpers, Laxkit::ButtonDownInfo::move(), and ShiftScreen().

int Laxkit::MultiLineEdit::MoveResize	(	int	nx,
		int	ny,
		int	nw,
		int	nh
	)

virtual

*** probably should cache resize events, so don't have to constantly SetupScreen which drag-resizing a window.

Reimplemented from Laxkit::TextXEditBaseUtf8.

References Laxkit::TextXEditBaseUtf8::settextrect(), and SetupScreen().

int Laxkit::MultiLineEdit::newyssize ( )

virtual

NOTE: the scrollers are always flush with right and bottom, and newyssize,newxssize modify textrect

Referenced by delchar(), delsel(), Event(), inschar(), insstring(), makeinwindow(), SetText(), SetupScreen(), ShiftScreen(), UseTheseScrollers(), and wwinspect().

int Laxkit::MultiLineEdit::Replace	(	const char *	oldstr,
		const char *	newstr,
		int	all
	)

virtual

Todo:: *** this, like the others in base classes are wholly inadequate

Reimplemented from Laxkit::TextEditBaseUtf8.

References findcaret(), makeinwindow(), and Laxkit::TextEditBaseUtf8::Replace().

int Laxkit::MultiLineEdit::Resize	(	int	nw,
		int	nh
	)

virtual

*** probably should cache resize events, so don't have to constantly SetupScreen which drag-resizing a window.

Reimplemented from Laxkit::TextXEditBaseUtf8.

References Laxkit::TextXEditBaseUtf8::settextrect(), and SetupScreen().

void Laxkit::MultiLineEdit::SetupScreen ( )

virtual

Sets up lpers, does Getmostwide(), and moves scrollers (if any) to correct positions. Then findcaret().

Todo:

*** if (xscroller && xscroller->win_on) xscroller->MoveResize(0,win_h-scrollwidth, win_w,scrollwidth);

*** if (yscroller && yscroller->win_on) yscroller->MoveResize(win_w-scrollwidth,0, scrollwidth,win_h);

References findcaret(), Getmostwide(), lpers, makelinestart(), Laxkit::Scroller::MoveResize(), newxssize(), newyssize(), and Laxkit::TextXEditBaseUtf8::textrect.

Referenced by MoveResize(), Resize(), SetupMetrics(), and UseTheseScrollers().

int Laxkit::MultiLineEdit::ShiftScreen	(	int	x,
		long	y
	)

virtual

Shift the view by x pixels and y lines.

Todo:: *** need smart ShiftScreen XCopyArea

Returns 1 if there is a change, 0 if not

References Laxkit::TextXEditBaseUtf8::curlineoffset, findcaret(), Laxkit::Scroller::GetCurPos(), linestats, lpers, makelinestart(), newxssize(), newyssize(), and Laxkit::Scroller::SetCurPos().

Referenced by Event(), MouseMove(), WheelDown(), and WheelUp().

void Laxkit::MultiLineEdit::UseTheseScrollers	(	Scroller *	xscroll,
		Scroller *	yscroll
	)

virtual

Use these external scrollers, rather than dynamically add and remove them.

Todo:: *** this needs work..

References Laxkit::anXApp::destroywindow(), newxssize(), newyssize(), SetupScreen(), Laxkit::TextXEditBaseUtf8::textrect, and Laxkit::anXWindow::win_on.

long Laxkit::MultiLineEdit::WhichLine ( long pos )

virtual

Return which screen line pos is in.

If the position is before the screen, then -1 is returned. If the position is after the screen, then lpers is returned (*** is that really oK??).

*** see getscreenline()... this is reimp from TextEditBaseUtf8, i think its really supposed to be the absolute line..

This function is used in TextXEditBaseUtf8::DrawCaret() to figure out what lines to either highlight or de-highlight.

Reimplemented from Laxkit::TextEditBaseUtf8.

References linestats, and lpers.

void Laxkit::MultiLineEdit::wwinspect ( int fromline = 0 )

virtual

Try to figure out if screen still laid out correctly based on word wrapping.

Called anytime changes are made in thetext. It changes linestats, needtodraw, dpos, nlines.

This inspects lines starting at fromline to ensure that they are. correct given current wrapping setup. It was checking each line only until the next line is correct, but that doesn't catch all changes, for instance adding a character to one line may change the previous line (if it is a space in a wrapped word for instance) or it may only cause the line it was typed on wrap differently. So you must scan from fromline to eo-screen.

Todo:: *** perhaps an optimization would be wwinspect(fromline,scanAtLeastThisManyLines)

References Laxkit::TextXEditBaseUtf8::dpos, findcaret(), findline(), findlinestart(), linestats, lpers, makelinestart(), newxssize(), newyssize(), and Laxkit::TextXEditBaseUtf8::nlines.

Referenced by delchar(), and inschar().

Member Data Documentation

int Laxkit::MultiLineEdit::lpers

protected

The number of lines per screen.

Line 0 is the first line of the screen and line lpers-1 is the last full line on the screen. Typically lines do not fit exactly on the screen, but it is useful to have a couple extra. So line lpers is usually the half on screen line, and line lpers+1 is the next line after that. The linestats array will have lpers+2 elements.

This is set only in SetupScreen(), newxsize() and newysize().

Referenced by delchar(), DrawText(), Event(), findcaret(), findpos(), Getmostwide(), getscreenline(), inschar(), insstring(), makeinwindow(), makelinestart(), MouseMove(), SetupScreen(), ShiftScreen(), WheelDown(), WheelUp(), WhichLine(), and wwinspect().

The documentation for this class was generated from the following files:

multilineedit.h
multilineedit.cc

Classes

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

Member Data Documentation