mirror of https://github.com/rfivet/uemacs.git
79 lines
2.8 KiB
C
79 lines
2.8 KiB
C
/* window.h -- window functionality */
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#ifndef _WINDOW_H_
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#define _WINDOW_H_
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#include "defines.h" /* COLOR, SCROLLCODE */
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#include "buffer.h" /* buffer_p, line_p */
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#include "names.h" /* BINDABLE() */
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/* There is a window structure allocated for every active display window.
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The windows are kept in a big list, in top to bottom screen order, with
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the listhead at "wheadp". Each window contains its own values of dot
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and mark. The flag field contains some bits that are set by commands to
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guide redisplay. Although this is a bit of a compromise in terms of
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decoupling, the full blown redisplay is just too expensive to run for
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every input character.
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*/
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typedef struct window {
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struct window *w_wndp; /* Next window */
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buffer_p w_bufp ; /* Buffer displayed in window */
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line_p w_linep ; /* Top line in the window */
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line_p w_dotp ; /* Line containing "." */
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line_p w_markp ; /* Line containing "mark" */
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int w_doto ; /* Byte offset for "." */
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int w_marko ; /* Byte offset for "mark" */
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int w_toprow ; /* Origin 0 top row of window */
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int w_ntrows ; /* # of rows of text in window */
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char w_force ; /* If NZ, forcing row. */
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char w_flag ; /* Flags. */
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#if COLOR
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char w_fcolor ; /* current forground color */
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char w_bcolor ; /* current background color */
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#endif
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} *window_p ;
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extern window_p curwp ; /* Current window */
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extern window_p wheadp ; /* Head of list of windows */
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/* curwbyte return the byte after the dot in current window */
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#define curwbyte() lgetc( curwp->w_dotp, curwp->w_doto)
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#define WFFORCE 0x01 /* Window needs forced reframe */
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#define WFMOVE 0x02 /* Movement from line to line */
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#define WFEDIT 0x04 /* Editing within a line */
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#define WFHARD 0x08 /* Better to a full display */
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#define WFMODE 0x10 /* Update mode line. */
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#define WFCOLR 0x20 /* Needs a color change */
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#if SCROLLCODE
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# define WFKILLS 0x40 /* something was deleted */
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# define WFINS 0x80 /* something was inserted */
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#endif
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/* Bindable functions */
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BINDABLE( delwind) ;
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BINDABLE( enlargewind) ;
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BINDABLE( mvdnwind) ;
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BINDABLE( mvupwind) ;
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BBINDABLE( newsize) ;
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BBINDABLE( newwidth) ;
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BINDABLE( nextwind) ;
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BINDABLE( onlywind) ;
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BINDABLE( prevwind) ;
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TBINDABLE( redraw) ;
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TBINDABLE( reposition) ;
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BINDABLE( resize) ;
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BINDABLE( restwnd) ;
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BINDABLE( savewnd) ;
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BINDABLE( scrnextdw) ;
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BINDABLE( scrnextup) ;
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BINDABLE( shrinkwind) ;
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BINDABLE( splitwind) ;
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int getwpos( void) ;
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void cknewwindow( void) ;
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window_p wpopup( void) ; /* Pop up window creation. */
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#endif
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/* end of window.h */
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