rxvt-unicode/src/rxvtlib.h.in

#ifndef _RXVTLIB_H_             /* include once only */
#define _RXVTLIB_H_

#include <cstdio>
#include <cctype>
#include <cerrno>
#include <cstdarg>
#include <cstdlib>
@include_stdint_h@
#include <sys/types.h>
#include <unistd.h>
#include <cstring>
#include <assert.h>
@include_sys_ioctl_h@
@include_sys_strredir_h@

#if HAVE_CWCHAR
# include <cwchar>
#elif HAVE_WCHAR_H
# include <wchar.h>
#else
// stdlib.h might provide it
#endif

using namespace std;

extern "C" {
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xresource.h>
}

struct rxvt_fontset;
struct rxvt_color;
struct rxvt_term;
struct rxvt_drawable;

typedef struct rxvt_term *rxvt_t;

extern rxvt_t rxvt_current_term;

#define SET_R(r) rxvt_current_term = const_cast<rxvt_term *>(r)
#define GET_R rxvt_current_term

typedef struct {
  int row;
  int col;
} row_col_t;

#if UNICODE_3
typedef uint32_t text_t;
#else
typedef uint16_t text_t; // saves lots of memory
#endif
typedef uint32_t rend_t;
typedef  int32_t tlen_t;  // was int16_t, but this results in smaller code and memory use
typedef  int32_t tlen_t_; // specifically for use in the line_t structure

struct line_t;

/*
 * terminal limits:
 *
 *  width      : 1 <= width
 *  height     : 1 <= height
 *  ncol       : 1 <= ncol       <= MAX(tlen_t)
 *  nrow       : 1 <= nrow       <= MAX(int)
 *  saveLines  : 0 <= saveLines  <= MAX(int)
 *  term_start : 0 <= term_start < saveLines
 *  total_rows : nrow + saveLines
 *
 *  top_row    : -saveLines <= top_row    <= 0
 *  view_start : top_row    <= view_start <= 0
 *
 *          | most coordinates are stored relative to term_start,
 *  ROW_BUF | which is the first line of the terminal screen
 *  |························= row_buf[0]
 *  |························= row_buf[1]
 *  |························= row_buf[2] etc.
 *  |
 *  +------------+···········= term_start + top_row
 *  | scrollback |
 *  | scrollback +---------+·= term_start + view_start
 *  | scrollback | display |
 *  | scrollback | display |
 *  +------------+·display·+·= term_start
 *  |  terminal  | display |
 *  |  terminal  +---------+
 *  |  terminal  |
 *  |  terminal  |
 *  +------------+···········= term_stat + nrow - 1
 *  |
 *  |
 *  END······················= total_rows
 */

struct TermWin_t {
  int            width;         /* window width                    [pixels] */
  int            height;        /* window height                   [pixels] */
  int            fwidth;        /* font width                      [pixels] */
  int            fheight;       /* font height                     [pixels] */
  int            fbase;         /* font ascent (baseline)          [pixels] */
  int            ncol;          /* window columns              [characters] */
  int            nrow;          /* window rows                 [characters] */
  int            focus;         /* window has focus                         */
  int            mapped;        /* window state mapped?                     */
  int            int_bwidth;    /* internal border width                    */
  int            ext_bwidth;    /* external border width                    */
  int            lineSpace;     /* number of extra pixels between rows      */
  int            saveLines;     /* number of lines that fit in scrollback   */
  int            total_rows;    /* total number of rows in this terminal    */
  int            term_start;    /* term lines start here                    */
  int            view_start;    /* scrollback view starts here              */
  int            top_row;       /* topmost row index of scrollback          */
  Window         parent[6];     /* parent identifiers - we're parent[0]     */
  Window         vt;            /* vt100 window                             */
  GC             gc;            /* GC for drawing                           */
  Pixmap         pixmap;
  rxvt_drawable *drawable;
  rxvt_fontset  *fontset[4];
};

/*
 * screen accounting:
 * screen_t elements
 *   row:       Cursor row position                   : 0 <= row < nrow
 *   col:       Cursor column position                : 0 <= col < ncol
 *   tscroll:   Scrolling region top row inclusive    : 0 <= row < nrow
 *   bscroll:   Scrolling region bottom row inclusive : 0 <= row < nrow
 *
 * selection_t elements
 *   clicks:    1, 2 or 3 clicks - 4 indicates a special condition of 1 where
 *              nothing is selected
 *   beg:       row/column of beginning of selection  : never past mark
 *   mark:      row/column of initial click           : never past end
 *   end:       row/column of one character past end of selection
 * * Note: -nsaved <= beg.row <= mark.row <= end.row < nrow
 * * Note: col == -1 ==> we're left of screen
 *
 */
typedef struct {
  row_col_t       cur;          /* cursor position on the screen             */
  int             tscroll;      /* top of settable scroll region             */
  int             bscroll;      /* bottom of settable scroll region          */
  unsigned int    charset;      /* character set number [0..3]               */
  unsigned int    flags;        /* see below                                 */
  row_col_t       s_cur;        /* saved cursor position                     */
  unsigned int    s_charset;    /* saved character set number [0..3]         */
  char            s_charset_char;
  rend_t          s_rstyle;     /* saved rendition style                     */
} screen_t;

enum selection_op_t {
  SELECTION_CLEAR = 0,  /* nothing selected                          */
  SELECTION_INIT,       /* marked a point                            */
  SELECTION_BEGIN,      /* started a selection                       */
  SELECTION_CONT,       /* continued selection                       */
  SELECTION_DONE        /* selection put in CUT_BUFFER0              */
};

typedef struct {
  wchar_t          *text;       /* selected text                             */
  unsigned int      len;        /* length of selected text                   */
  unsigned int      screen;     /* screen being used                         */
  unsigned int      clicks;     /* number of clicks                          */
  selection_op_t    op;         /* current operation                         */
  bool              rect;       /* rectangular selection?                    */
  row_col_t         beg;        /* beginning of selection   <= mark          */
  row_col_t         mark;       /* point of initial click   <= end           */
  row_col_t         end;        /* one character past end point              */
} selection_t;

/* ------------------------------------------------------------------------- */

/* screen_t flags */
#define Screen_Relative          (1<<0)  /* relative origin mode flag         */
#define Screen_VisibleCursor     (1<<1)  /* cursor visible?                   */
#define Screen_Autowrap          (1<<2)  /* auto-wrap flag                    */
#define Screen_Insert            (1<<3)  /* insert mode (vs. overstrike)      */
#define Screen_WrapNext          (1<<4)  /* need to wrap for next char?       */
#define Screen_DefaultFlags      (Screen_VisibleCursor | Screen_Autowrap)

/* rxvt_vars.options */
enum {
# define def(name,idx) Opt_ ## name = idx,
# define nodef(name)   Opt_ ## name = 0,
# include "optinc.h"
# undef nodef
# undef def
Opt_count
};

/* ------------------------------------------------------------------------- */

typedef struct {
  char            state;        /* scrollbar state                          */
  char            init;         /* scrollbar has been initialised           */
  unsigned int    beg;          /* slider sub-window begin height           */
  unsigned int    end;          /* slider sub-window end height             */
  unsigned int    top;          /* slider top position                      */
  unsigned int    bot;          /* slider bottom position                   */
  unsigned int    style;        /* style: rxvt, xterm, next                 */
  unsigned int    width;        /* scrollbar width                          */
  Window          win;
  int             (rxvt_term::*update)(int, int, int, int);

  void setIdle()   { state =  1 ; }
  void setMotion() { state = 'm'; }
  void setUp()     { state = 'U'; }
  void setDn()     { state = 'D'; }
} scrollBar_t;

struct rxvt_vars : TermWin_t {
  scrollBar_t     scrollBar;
  uint8_t         options[(Opt_count + 7) >> 3];
  XSizeHints      szHint;
  rxvt_color     *pix_colors;
  rxvt_color     *pix_colors_focused;
#ifdef OFF_FOCUS_FADING
  rxvt_color     *pix_colors_unfocused;
#endif
  Cursor          TermWin_cursor;       /* cursor for vt window */
  int             sb_shadow;    /* scrollbar shadow width                    */
  int             numlock_state;
  line_t         *row_buf;      // all lines, scrollback + terminal, circular, followed by temp_buf
  line_t         *drawn_buf;    // text on screen
  line_t         *swap_buf;     // lines for swap buffer
  char           *tabs;         /* per location: 1 == tab-stop               */
  screen_t        screen;
  screen_t        swap;
  selection_t     selection;
};

void rxvt_init ();

#endif                          /* _RXVTLIB_H_ */

Revision:	1.86
Committed:	Fri Dec 28 14:00:47 2007 UTC (16 years, 4 months ago) by ayin
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.85:	+0 -0 lines
State:	*FILE REMOVED*
Log Message:	Merge rxvtlib.h.in in rxvt.h.
#	User	Rev	Content
1	pcg	1.3	#ifndef _RXVTLIB_H_ /* include once only */
2	pcg	1.1	#define _RXVTLIB_H_
3
4	pcg	1.16	#include <cstdio>
5			#include <cctype>
6			#include <cerrno>
7	ayin	1.81	#include <cstdarg>
8			#include <cstdlib>
9	pcg	1.1	@include_stdint_h@
10			#include <sys/types.h>
11	ayin	1.81	#include <unistd.h>
12			#include <cstring>
13			#include <assert.h>
14	pcg	1.1	@include_sys_ioctl_h@
15			@include_sys_strredir_h@
16
17	root	1.44	#if HAVE_CWCHAR
18			# include <cwchar>
19	root	1.45	#elif HAVE_WCHAR_H
20	root	1.44	# include <wchar.h>
21			#else
22			// stdlib.h might provide it
23			#endif
24	pcg	1.16
25	root	1.74	using namespace std;
26
27	pcg	1.1	extern "C" {
28	root	1.73	#include <X11/Xlib.h>
29			#include <X11/Xutil.h>
30			#include <X11/Xresource.h>
31	pcg	1.1	}
32
33			struct rxvt_fontset;
34			struct rxvt_color;
35	pcg	1.3	struct rxvt_term;
36	pcg	1.12	struct rxvt_drawable;
37	pcg	1.1
38	pcg	1.3	typedef struct rxvt_term *rxvt_t;
39
40			extern rxvt_t rxvt_current_term;
41
42	root	1.66	#define SET_R(r) rxvt_current_term = const_cast<rxvt_term *>(r)
43	root	1.43	#define GET_R rxvt_current_term
44	pcg	1.1
45			typedef struct {
46	root	1.41	int row;
47			int col;
48	pcg	1.1	} row_col_t;
49
50	pcg	1.16	#if UNICODE_3
51	pcg	1.1	typedef uint32_t text_t;
52			#else
53			typedef uint16_t text_t; // saves lots of memory
54			#endif
55			typedef uint32_t rend_t;
56	root	1.59	typedef int32_t tlen_t; // was int16_t, but this results in smaller code and memory use
57			typedef int32_t tlen_t_; // specifically for use in the line_t structure
58	root	1.49
59	root	1.59	struct line_t;
60	pcg	1.1
61			/*
62	root	1.52	* terminal limits:
63			*
64			* width : 1 <= width
65			* height : 1 <= height
66	root	1.53	* ncol : 1 <= ncol <= MAX(tlen_t)
67			* nrow : 1 <= nrow <= MAX(int)
68			* saveLines : 0 <= saveLines <= MAX(int)
69	root	1.65	* term_start : 0 <= term_start < saveLines
70	root	1.52	* total_rows : nrow + saveLines
71	root	1.65	*
72			* top_row : -saveLines <= top_row <= 0
73			* view_start : top_row <= view_start <= 0
74	root	1.52	*
75			* \| most coordinates are stored relative to term_start,
76			* ROW_BUF \| which is the first line of the terminal screen
77			* \|························= row_buf[0]
78			* \|························= row_buf[1]
79			* \|························= row_buf[2] etc.
80			* \|
81	root	1.65	* +------------+···········= term_start + top_row
82	ayin	1.78	* \| scrollback \|
83	root	1.65	* \| scrollback +---------+·= term_start + view_start
84	root	1.52	* \| scrollback \| display \|
85			* \| scrollback \| display \|
86			* +------------+·display·+·= term_start
87			* \| terminal \| display \|
88			* \| terminal +---------+
89			* \| terminal \|
90			* \| terminal \|
91			* +------------+···········= term_stat + nrow - 1
92			* \|
93			* \|
94			* END······················= total_rows
95	pcg	1.1	*/
96
97	root	1.49	struct TermWin_t {
98	root	1.41	int width; /* window width [pixels] */
99			int height; /* window height [pixels] */
100			int fwidth; /* font width [pixels] */
101			int fheight; /* font height [pixels] */
102			int fbase; /* font ascent (baseline) [pixels] */
103			int ncol; /* window columns [characters] */
104			int nrow; /* window rows [characters] */
105			int focus; /* window has focus */
106			int mapped; /* window state mapped? */
107			int int_bwidth; /* internal border width */
108			int ext_bwidth; /* external border width */
109			int lineSpace; /* number of extra pixels between rows */
110			int saveLines; /* number of lines that fit in scrollback */
111	root	1.51	int total_rows; /* total number of rows in this terminal */
112	root	1.49	int term_start; /* term lines start here */
113	root	1.41	int view_start; /* scrollback view starts here */
114	root	1.65	int top_row; /* topmost row index of scrollback */
115	pcg	1.3	Window parent[6]; /* parent identifiers - we're parent[0] */
116			Window vt; /* vt100 window */
117			GC gc; /* GC for drawing */
118			Pixmap pixmap;
119	pcg	1.12	rxvt_drawable *drawable;
120	root	1.38	rxvt_fontset *fontset[4];
121	root	1.49	};
122	pcg	1.1
123			/*
124			* screen accounting:
125			* screen_t elements
126	root	1.49	* row: Cursor row position : 0 <= row < nrow
127			* col: Cursor column position : 0 <= col < ncol
128			* tscroll: Scrolling region top row inclusive : 0 <= row < nrow
129			* bscroll: Scrolling region bottom row inclusive : 0 <= row < nrow
130	pcg	1.1	*
131			* selection_t elements
132			* clicks: 1, 2 or 3 clicks - 4 indicates a special condition of 1 where
133			* nothing is selected
134			* beg: row/column of beginning of selection : never past mark
135			* mark: row/column of initial click : never past end
136			* end: row/column of one character past end of selection
137	root	1.51	* * Note: -nsaved <= beg.row <= mark.row <= end.row < nrow
138	pcg	1.1	* * Note: col == -1 ==> we're left of screen
139			*
140			*/
141			typedef struct {
142	root	1.52	row_col_t cur; /* cursor position on the screen */
143			int tscroll; /* top of settable scroll region */
144			int bscroll; /* bottom of settable scroll region */
145	root	1.38	unsigned int charset; /* character set number [0..3] */
146	pcg	1.3	unsigned int flags; /* see below */
147			row_col_t s_cur; /* saved cursor position */
148	root	1.38	unsigned int s_charset; /* saved character set number [0..3] */
149	pcg	1.3	char s_charset_char;
150			rend_t s_rstyle; /* saved rendition style */
151	pcg	1.1	} screen_t;
152
153			enum selection_op_t {
154	pcg	1.3	SELECTION_CLEAR = 0, /* nothing selected */
155			SELECTION_INIT, /* marked a point */
156			SELECTION_BEGIN, /* started a selection */
157			SELECTION_CONT, /* continued selection */
158			SELECTION_DONE /* selection put in CUT_BUFFER0 */
159	pcg	1.1	};
160
161			typedef struct {
162	root	1.41	wchar_t text; / selected text */
163			unsigned int len; /* length of selected text */
164			unsigned int screen; /* screen being used */
165			unsigned int clicks; /* number of clicks */
166			selection_op_t op; /* current operation */
167	ayin	1.77	bool rect; /* rectangular selection? */
168	root	1.41	row_col_t beg; /* beginning of selection <= mark */
169			row_col_t mark; /* point of initial click <= end */
170			row_col_t end; /* one character past end point */
171	pcg	1.1	} selection_t;
172
173			/* ------------------------------------------------------------------------- */
174
175			/* screen_t flags */
176	root	1.47	#define Screen_Relative (1<<0) /* relative origin mode flag */
177			#define Screen_VisibleCursor (1<<1) /* cursor visible? */
178			#define Screen_Autowrap (1<<2) /* auto-wrap flag */
179			#define Screen_Insert (1<<3) /* insert mode (vs. overstrike) */
180			#define Screen_WrapNext (1<<4) /* need to wrap for next char? */
181	root	1.48	#define Screen_DefaultFlags (Screen_VisibleCursor \| Screen_Autowrap)
182	pcg	1.1
183	root	1.32	/* rxvt_vars.options */
184	root	1.61	enum {
185	ayin	1.76	# define def(name,idx) Opt_ ## name = idx,
186			# define nodef(name) Opt_ ## name = 0,
187	root	1.61	# include "optinc.h"
188			# undef nodef
189			# undef def
190	ayin	1.76	Opt_count
191	root	1.61	};
192	pcg	1.1
193			/* ------------------------------------------------------------------------- */
194
195			typedef struct {
196	pcg	1.3	char state; /* scrollbar state */
197			char init; /* scrollbar has been initialised */
198	root	1.38	unsigned int beg; /* slider sub-window begin height */
199			unsigned int end; /* slider sub-window end height */
200			unsigned int top; /* slider top position */
201			unsigned int bot; /* slider bottom position */
202			unsigned int style; /* style: rxvt, xterm, next */
203			unsigned int width; /* scrollbar width */
204	pcg	1.3	Window win;
205	pcg	1.10	int (rxvt_term::*update)(int, int, int, int);
206	pcg	1.7
207			void setIdle() { state = 1 ; }
208			void setMotion() { state = 'm'; }
209			void setUp() { state = 'U'; }
210			void setDn() { state = 'D'; }
211	pcg	1.1	} scrollBar_t;
212
213	root	1.49	struct rxvt_vars : TermWin_t {
214	pcg	1.3	scrollBar_t scrollBar;
215	ayin	1.76	uint8_t options[(Opt_count + 7) >> 3];
216	pcg	1.3	XSizeHints szHint;
217	root	1.32	rxvt_color *pix_colors;
218			rxvt_color *pix_colors_focused;
219	root	1.24	#ifdef OFF_FOCUS_FADING
220	root	1.32	rxvt_color *pix_colors_unfocused;
221	root	1.24	#endif
222	pcg	1.3	Cursor TermWin_cursor; /* cursor for vt window */
223			int sb_shadow; /* scrollbar shadow width */
224			int numlock_state;
225	root	1.64	line_t *row_buf; // all lines, scrollback + terminal, circular, followed by temp_buf
226	root	1.52	line_t *drawn_buf; // text on screen
227			line_t *swap_buf; // lines for swap buffer
228	pcg	1.3	char tabs; / per location: 1 == tab-stop */
229			screen_t screen;
230			screen_t swap;
231			selection_t selection;
232			};
233	pcg	1.1
234	root	1.32	void rxvt_init ();
235	pcg	1.1
236	pcg	1.3	#endif /* _RXVTLIB_H_ */
237	pcg	1.1