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_vars;               /* defined later on */
struct rxvt_term;
struct rxvt_im;
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:	1.84
Committed:	Tue Dec 18 12:04:50 2007 UTC (16 years, 5 months ago) by ayin
Branch:	MAIN
Changes since 1.83:	+0 -1 lines
Log Message:	Remove unused member variable.
#	Content
1	#ifndef _RXVTLIB_H_ /* include once only */
2	#define _RXVTLIB_H_
3
4	#include <cstdio>
5	#include <cctype>
6	#include <cerrno>
7	#include <cstdarg>
8	#include <cstdlib>
9	@include_stdint_h@
10	#include <sys/types.h>
11	#include <unistd.h>
12	#include <cstring>
13	#include <assert.h>
14	@include_sys_ioctl_h@
15	@include_sys_strredir_h@
16
17	#if HAVE_CWCHAR
18	# include <cwchar>
19	#elif HAVE_WCHAR_H
20	# include <wchar.h>
21	#else
22	// stdlib.h might provide it
23	#endif
24
25	using namespace std;
26
27	extern "C" {
28	#include <X11/Xlib.h>
29	#include <X11/Xutil.h>
30	#include <X11/Xresource.h>
31	}
32
33	struct rxvt_fontset;
34	struct rxvt_color;
35	struct rxvt_vars; /* defined later on */
36	struct rxvt_term;
37	struct rxvt_im;
38	struct rxvt_drawable;
39
40	typedef struct rxvt_term *rxvt_t;
41
42	extern rxvt_t rxvt_current_term;
43
44	#define SET_R(r) rxvt_current_term = const_cast<rxvt_term *>(r)
45	#define GET_R rxvt_current_term
46
47	typedef struct {
48	int row;
49	int col;
50	} row_col_t;
51
52	#if UNICODE_3
53	typedef uint32_t text_t;
54	#else
55	typedef uint16_t text_t; // saves lots of memory
56	#endif
57	typedef uint32_t rend_t;
58	typedef int32_t tlen_t; // was int16_t, but this results in smaller code and memory use
59	typedef int32_t tlen_t_; // specifically for use in the line_t structure
60
61	struct line_t;
62
63	/*
64	* terminal limits:
65	*
66	* width : 1 <= width
67	* height : 1 <= height
68	* ncol : 1 <= ncol <= MAX(tlen_t)
69	* nrow : 1 <= nrow <= MAX(int)
70	* saveLines : 0 <= saveLines <= MAX(int)
71	* term_start : 0 <= term_start < saveLines
72	* total_rows : nrow + saveLines
73	*
74	* top_row : -saveLines <= top_row <= 0
75	* view_start : top_row <= view_start <= 0
76	*
77	* \| most coordinates are stored relative to term_start,
78	* ROW_BUF \| which is the first line of the terminal screen
79	* \|························= row_buf[0]
80	* \|························= row_buf[1]
81	* \|························= row_buf[2] etc.
82	* \|
83	* +------------+···········= term_start + top_row
84	* \| scrollback \|
85	* \| scrollback +---------+·= term_start + view_start
86	* \| scrollback \| display \|
87	* \| scrollback \| display \|
88	* +------------+·display·+·= term_start
89	* \| terminal \| display \|
90	* \| terminal +---------+
91	* \| terminal \|
92	* \| terminal \|
93	* +------------+···········= term_stat + nrow - 1
94	* \|
95	* \|
96	* END······················= total_rows
97	*/
98
99	struct TermWin_t {
100	int width; /* window width [pixels] */
101	int height; /* window height [pixels] */
102	int fwidth; /* font width [pixels] */
103	int fheight; /* font height [pixels] */
104	int fbase; /* font ascent (baseline) [pixels] */
105	int ncol; /* window columns [characters] */
106	int nrow; /* window rows [characters] */
107	int focus; /* window has focus */
108	int mapped; /* window state mapped? */
109	int int_bwidth; /* internal border width */
110	int ext_bwidth; /* external border width */
111	int lineSpace; /* number of extra pixels between rows */
112	int saveLines; /* number of lines that fit in scrollback */
113	int total_rows; /* total number of rows in this terminal */
114	int term_start; /* term lines start here */
115	int view_start; /* scrollback view starts here */
116	int top_row; /* topmost row index of scrollback */
117	Window parent[6]; /* parent identifiers - we're parent[0] */
118	Window vt; /* vt100 window */
119	GC gc; /* GC for drawing */
120	Pixmap pixmap;
121	rxvt_drawable *drawable;
122	rxvt_fontset *fontset[4];
123	};
124
125	/*
126	* screen accounting:
127	* screen_t elements
128	* row: Cursor row position : 0 <= row < nrow
129	* col: Cursor column position : 0 <= col < ncol
130	* tscroll: Scrolling region top row inclusive : 0 <= row < nrow
131	* bscroll: Scrolling region bottom row inclusive : 0 <= row < nrow
132	*
133	* selection_t elements
134	* clicks: 1, 2 or 3 clicks - 4 indicates a special condition of 1 where
135	* nothing is selected
136	* beg: row/column of beginning of selection : never past mark
137	* mark: row/column of initial click : never past end
138	* end: row/column of one character past end of selection
139	* * Note: -nsaved <= beg.row <= mark.row <= end.row < nrow
140	* * Note: col == -1 ==> we're left of screen
141	*
142	*/
143	typedef struct {
144	row_col_t cur; /* cursor position on the screen */
145	int tscroll; /* top of settable scroll region */
146	int bscroll; /* bottom of settable scroll region */
147	unsigned int charset; /* character set number [0..3] */
148	unsigned int flags; /* see below */
149	row_col_t s_cur; /* saved cursor position */
150	unsigned int s_charset; /* saved character set number [0..3] */
151	char s_charset_char;
152	rend_t s_rstyle; /* saved rendition style */
153	} screen_t;
154
155	enum selection_op_t {
156	SELECTION_CLEAR = 0, /* nothing selected */
157	SELECTION_INIT, /* marked a point */
158	SELECTION_BEGIN, /* started a selection */
159	SELECTION_CONT, /* continued selection */
160	SELECTION_DONE /* selection put in CUT_BUFFER0 */
161	};
162
163	typedef struct {
164	wchar_t text; / selected text */
165	unsigned int len; /* length of selected text */
166	unsigned int screen; /* screen being used */
167	unsigned int clicks; /* number of clicks */
168	selection_op_t op; /* current operation */
169	bool rect; /* rectangular selection? */
170	row_col_t beg; /* beginning of selection <= mark */
171	row_col_t mark; /* point of initial click <= end */
172	row_col_t end; /* one character past end point */
173	} selection_t;
174
175	/* ------------------------------------------------------------------------- */
176
177	/* screen_t flags */
178	#define Screen_Relative (1<<0) /* relative origin mode flag */
179	#define Screen_VisibleCursor (1<<1) /* cursor visible? */
180	#define Screen_Autowrap (1<<2) /* auto-wrap flag */
181	#define Screen_Insert (1<<3) /* insert mode (vs. overstrike) */
182	#define Screen_WrapNext (1<<4) /* need to wrap for next char? */
183	#define Screen_DefaultFlags (Screen_VisibleCursor \| Screen_Autowrap)
184
185	/* rxvt_vars.options */
186	enum {
187	# define def(name,idx) Opt_ ## name = idx,
188	# define nodef(name) Opt_ ## name = 0,
189	# include "optinc.h"
190	# undef nodef
191	# undef def
192	Opt_count
193	};
194
195	/* ------------------------------------------------------------------------- */
196
197	typedef struct {
198	char state; /* scrollbar state */
199	char init; /* scrollbar has been initialised */
200	unsigned int beg; /* slider sub-window begin height */
201	unsigned int end; /* slider sub-window end height */
202	unsigned int top; /* slider top position */
203	unsigned int bot; /* slider bottom position */
204	unsigned int style; /* style: rxvt, xterm, next */
205	unsigned int width; /* scrollbar width */
206	Window win;
207	int (rxvt_term::*update)(int, int, int, int);
208
209	void setIdle() { state = 1 ; }
210	void setMotion() { state = 'm'; }
211	void setUp() { state = 'U'; }
212	void setDn() { state = 'D'; }
213	} scrollBar_t;
214
215	struct rxvt_vars : TermWin_t {
216	scrollBar_t scrollBar;
217	uint8_t options[(Opt_count + 7) >> 3];
218	XSizeHints szHint;
219	rxvt_color *pix_colors;
220	rxvt_color *pix_colors_focused;
221	#ifdef OFF_FOCUS_FADING
222	rxvt_color *pix_colors_unfocused;
223	#endif
224	Cursor TermWin_cursor; /* cursor for vt window */
225	int sb_shadow; /* scrollbar shadow width */
226	int numlock_state;
227	line_t *row_buf; // all lines, scrollback + terminal, circular, followed by temp_buf
228	line_t *drawn_buf; // text on screen
229	line_t *swap_buf; // lines for swap buffer
230	char tabs; / per location: 1 == tab-stop */
231	screen_t screen;
232	screen_t swap;
233	selection_t selection;
234	};
235
236	void rxvt_init ();
237
238	#endif /* _RXVTLIB_H_ */
239