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@

#include <sys/wait.h>
#include <sys/stat.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
  short           numpix_colors;
  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:	1.82
Committed:	Tue Dec 11 18:07:08 2007 UTC (16 years, 7 months ago) by ayin
Branch:	MAIN
CVS Tags:	rel-8_8
Changes since 1.81:	+0 -9 lines
Log Message:	Use autoconf macros to define exact-width types if missing.
#	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	#include <sys/wait.h>
18	#include <sys/stat.h>
19
20	#if HAVE_CWCHAR
21	# include <cwchar>
22	#elif HAVE_WCHAR_H
23	# include <wchar.h>
24	#else
25	// stdlib.h might provide it
26	#endif
27
28	using namespace std;
29
30	extern "C" {
31	#include <X11/Xlib.h>
32	#include <X11/Xutil.h>
33	#include <X11/Xresource.h>
34	}
35
36	struct rxvt_fontset;
37	struct rxvt_color;
38	struct rxvt_vars; /* defined later on */
39	struct rxvt_term;
40	struct rxvt_im;
41	struct rxvt_drawable;
42
43	typedef struct rxvt_term *rxvt_t;
44
45	extern rxvt_t rxvt_current_term;
46
47	#define SET_R(r) rxvt_current_term = const_cast<rxvt_term *>(r)
48	#define GET_R rxvt_current_term
49
50	typedef struct {
51	int row;
52	int col;
53	} row_col_t;
54
55	#if UNICODE_3
56	typedef uint32_t text_t;
57	#else
58	typedef uint16_t text_t; // saves lots of memory
59	#endif
60	typedef uint32_t rend_t;
61	typedef int32_t tlen_t; // was int16_t, but this results in smaller code and memory use
62	typedef int32_t tlen_t_; // specifically for use in the line_t structure
63
64	struct line_t;
65
66	/*
67	* terminal limits:
68	*
69	* width : 1 <= width
70	* height : 1 <= height
71	* ncol : 1 <= ncol <= MAX(tlen_t)
72	* nrow : 1 <= nrow <= MAX(int)
73	* saveLines : 0 <= saveLines <= MAX(int)
74	* term_start : 0 <= term_start < saveLines
75	* total_rows : nrow + saveLines
76	*
77	* top_row : -saveLines <= top_row <= 0
78	* view_start : top_row <= view_start <= 0
79	*
80	* \| most coordinates are stored relative to term_start,
81	* ROW_BUF \| which is the first line of the terminal screen
82	* \|························= row_buf[0]
83	* \|························= row_buf[1]
84	* \|························= row_buf[2] etc.
85	* \|
86	* +------------+···········= term_start + top_row
87	* \| scrollback \|
88	* \| scrollback +---------+·= term_start + view_start
89	* \| scrollback \| display \|
90	* \| scrollback \| display \|
91	* +------------+·display·+·= term_start
92	* \| terminal \| display \|
93	* \| terminal +---------+
94	* \| terminal \|
95	* \| terminal \|
96	* +------------+···········= term_stat + nrow - 1
97	* \|
98	* \|
99	* END······················= total_rows
100	*/
101
102	struct TermWin_t {
103	int width; /* window width [pixels] */
104	int height; /* window height [pixels] */
105	int fwidth; /* font width [pixels] */
106	int fheight; /* font height [pixels] */
107	int fbase; /* font ascent (baseline) [pixels] */
108	int ncol; /* window columns [characters] */
109	int nrow; /* window rows [characters] */
110	int focus; /* window has focus */
111	int mapped; /* window state mapped? */
112	int int_bwidth; /* internal border width */
113	int ext_bwidth; /* external border width */
114	int lineSpace; /* number of extra pixels between rows */
115	int saveLines; /* number of lines that fit in scrollback */
116	int total_rows; /* total number of rows in this terminal */
117	int term_start; /* term lines start here */
118	int view_start; /* scrollback view starts here */
119	int top_row; /* topmost row index of scrollback */
120	Window parent[6]; /* parent identifiers - we're parent[0] */
121	Window vt; /* vt100 window */
122	GC gc; /* GC for drawing */
123	Pixmap pixmap;
124	rxvt_drawable *drawable;
125	rxvt_fontset *fontset[4];
126	};
127
128	/*
129	* screen accounting:
130	* screen_t elements
131	* row: Cursor row position : 0 <= row < nrow
132	* col: Cursor column position : 0 <= col < ncol
133	* tscroll: Scrolling region top row inclusive : 0 <= row < nrow
134	* bscroll: Scrolling region bottom row inclusive : 0 <= row < nrow
135	*
136	* selection_t elements
137	* clicks: 1, 2 or 3 clicks - 4 indicates a special condition of 1 where
138	* nothing is selected
139	* beg: row/column of beginning of selection : never past mark
140	* mark: row/column of initial click : never past end
141	* end: row/column of one character past end of selection
142	* * Note: -nsaved <= beg.row <= mark.row <= end.row < nrow
143	* * Note: col == -1 ==> we're left of screen
144	*
145	*/
146	typedef struct {
147	row_col_t cur; /* cursor position on the screen */
148	int tscroll; /* top of settable scroll region */
149	int bscroll; /* bottom of settable scroll region */
150	unsigned int charset; /* character set number [0..3] */
151	unsigned int flags; /* see below */
152	row_col_t s_cur; /* saved cursor position */
153	unsigned int s_charset; /* saved character set number [0..3] */
154	char s_charset_char;
155	rend_t s_rstyle; /* saved rendition style */
156	} screen_t;
157
158	enum selection_op_t {
159	SELECTION_CLEAR = 0, /* nothing selected */
160	SELECTION_INIT, /* marked a point */
161	SELECTION_BEGIN, /* started a selection */
162	SELECTION_CONT, /* continued selection */
163	SELECTION_DONE /* selection put in CUT_BUFFER0 */
164	};
165
166	typedef struct {
167	wchar_t text; / selected text */
168	unsigned int len; /* length of selected text */
169	unsigned int screen; /* screen being used */
170	unsigned int clicks; /* number of clicks */
171	selection_op_t op; /* current operation */
172	bool rect; /* rectangular selection? */
173	row_col_t beg; /* beginning of selection <= mark */
174	row_col_t mark; /* point of initial click <= end */
175	row_col_t end; /* one character past end point */
176	} selection_t;
177
178	/* ------------------------------------------------------------------------- */
179
180	/* screen_t flags */
181	#define Screen_Relative (1<<0) /* relative origin mode flag */
182	#define Screen_VisibleCursor (1<<1) /* cursor visible? */
183	#define Screen_Autowrap (1<<2) /* auto-wrap flag */
184	#define Screen_Insert (1<<3) /* insert mode (vs. overstrike) */
185	#define Screen_WrapNext (1<<4) /* need to wrap for next char? */
186	#define Screen_DefaultFlags (Screen_VisibleCursor \| Screen_Autowrap)
187
188	/* rxvt_vars.options */
189	enum {
190	# define def(name,idx) Opt_ ## name = idx,
191	# define nodef(name) Opt_ ## name = 0,
192	# include "optinc.h"
193	# undef nodef
194	# undef def
195	Opt_count
196	};
197
198	/* ------------------------------------------------------------------------- */
199
200	typedef struct {
201	char state; /* scrollbar state */
202	char init; /* scrollbar has been initialised */
203	unsigned int beg; /* slider sub-window begin height */
204	unsigned int end; /* slider sub-window end height */
205	unsigned int top; /* slider top position */
206	unsigned int bot; /* slider bottom position */
207	unsigned int style; /* style: rxvt, xterm, next */
208	unsigned int width; /* scrollbar width */
209	Window win;
210	int (rxvt_term::*update)(int, int, int, int);
211
212	void setIdle() { state = 1 ; }
213	void setMotion() { state = 'm'; }
214	void setUp() { state = 'U'; }
215	void setDn() { state = 'D'; }
216	} scrollBar_t;
217
218	struct rxvt_vars : TermWin_t {
219	scrollBar_t scrollBar;
220	uint8_t options[(Opt_count + 7) >> 3];
221	XSizeHints szHint;
222	rxvt_color *pix_colors;
223	rxvt_color *pix_colors_focused;
224	#ifdef OFF_FOCUS_FADING
225	rxvt_color *pix_colors_unfocused;
226	#endif
227	short numpix_colors;
228	Cursor TermWin_cursor; /* cursor for vt window */
229	int sb_shadow; /* scrollbar shadow width */
230	int numlock_state;
231	line_t *row_buf; // all lines, scrollback + terminal, circular, followed by temp_buf
232	line_t *drawn_buf; // text on screen
233	line_t *swap_buf; // lines for swap buffer
234	char tabs; / per location: 1 == tab-stop */
235	screen_t screen;
236	screen_t swap;
237	selection_t selection;
238	};
239
240	void rxvt_init ();
241
242	#endif /* _RXVTLIB_H_ */
243