rxvt-unicode/src/scrollbar.h

#ifndef SCROLLBAR_H
#define SCROLLBAR_H

#include <X11/Xlib.h>

struct rxvt_term;

#define R_SB_NEXT               1
#define R_SB_XTERM              2
#define R_SB_PLAIN              4
#define R_SB_RXVT               8

#define R_SB_ALIGN_CENTRE       0
#define R_SB_ALIGN_TOP          1
#define R_SB_ALIGN_BOTTOM       2

#define SB_WIDTH_NEXT           19
#define SB_WIDTH_XTERM          15
#define SB_WIDTH_PLAIN          7
#ifndef SB_WIDTH_RXVT
# define SB_WIDTH_RXVT          10
#endif

/*
 * NeXT scrollbar defines
 */
#define SB_PADDING              1
#define SB_BORDER_WIDTH         1
#define SB_BEVEL_WIDTH_UPPER_LEFT       1
#define SB_BEVEL_WIDTH_LOWER_RIGHT      2
#define SB_LEFT_PADDING         (SB_PADDING + SB_BORDER_WIDTH)
#define SB_MARGIN_SPACE         (SB_PADDING * 2)
#define SB_BUTTON_WIDTH         (SB_WIDTH_NEXT - SB_MARGIN_SPACE - SB_BORDER_WIDTH)
#define SB_BUTTON_HEIGHT        (SB_BUTTON_WIDTH)
#define SB_BUTTON_SINGLE_HEIGHT (SB_BUTTON_HEIGHT + SB_PADDING)
#define SB_BUTTON_BOTH_HEIGHT   (SB_BUTTON_SINGLE_HEIGHT * 2)
#define SB_BUTTON_TOTAL_HEIGHT  (SB_BUTTON_BOTH_HEIGHT + SB_PADDING)
#define SB_BUTTON_BEVEL_X       (SB_LEFT_PADDING)
#define SB_BUTTON_FACE_X        (SB_BUTTON_BEVEL_X + SB_BEVEL_WIDTH_UPPER_LEFT)
#define SB_THUMB_MIN_HEIGHT     (SB_BUTTON_WIDTH - (SB_PADDING * 2))

enum sb_state {
  STATE_IDLE = 1,
  STATE_MOTION,
  STATE_UP,
  STATE_DOWN,
};

struct scrollBar_t {
  rxvt_term *term;
  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                          */
  int             shadow;       /* scrollbar shadow width                   */
  int             last_bot;     /* scrollbar last bottom position           */
  int             last_top;     /* scrollbar last top position              */
  int             last_state;   /* scrollbar last state                     */
  int             len;
  unsigned char   align;
  Window          win;
  Cursor          leftptr_cursor;
  int             (rxvt_term::*update)(int, int, int, int);
  void setup (rxvt_term *);
  // update style dependent data
  void update_data ();
  void resize ();
  int map (int);
  int show (int);

  bool upButton (int y)
  {
    if (style == R_SB_NEXT)
      return y > end && y <= end + width + 1;
    if (style == R_SB_RXVT)
      return y < beg;
    return false;
  }
  bool dnButton (int y)
  {
    if (style == R_SB_NEXT)
      return y > end + width + 1;
    if (style == R_SB_RXVT)
      return y > end;
    return false;
  }
  unsigned min_height ()
  {
    return style == R_SB_NEXT ? SB_THUMB_MIN_HEIGHT : 10;
  }
  unsigned size ()
  {
    return end - beg - min_height ();
  }
  unsigned total_width ()
  {
    return width + shadow * 2;
  }
};

#define scrollbar_above_slider(y)       ((y) < scrollBar.top)
#define scrollbar_below_slider(y)       ((y) > scrollBar.bot)
#define scrollbar_position(y)           ((y) - scrollBar.beg)

 /*
  *    +-------------+
  *    |             | <---< SB_PADDING
  *    | ::::::::::: |
  *    | ::::::::::: |
  *   '''''''''''''''''
  *   ,,,,,,,,,,,,,,,,,
  *    | ::::::::::: |
  *    | ::::::::::: |
  *    |  +---------------< SB_BEVEL_WIDTH_UPPER_LEFT
  *    |  | :::::::: |
  *    |  V :::: vv-------< SB_BEVEL_WIDTH_LOWER_RIGHT
  *    | +---------+ |
  *    | | ......%%| |
  *    | | ......%%| |
  *    | | .. ()..%%| |
  *    | | ......%%| |
  *    | | %%%%%%%%| |
  *    | +---------+ | <.........................
  *    |             | <---< SB_PADDING         :
  *    | +---------+ | <-+..........            :---< SB_BUTTON_TOTAL_HEIGHT
  *    | | ......%%| |   |         :            :
  *    | | ../\..%%| |   |---< SB_BUTTON_HEIGHT :
  *    | | %%%%%%%%| |   |         :            :
  *    | +---------+ | <-+         :            :
  *    |             |             :            :
  *    | +---------+ | <-+         :---< SB_BUTTON_BOTH_HEIGHT
  *    | | ......%%| |   |         :            :
  *    | | ..\/..%%| |   |         :            :
  *    | | %%%%%%%%| |   |---< SB_BUTTON_SINGLE_HEIGHT
  *    | +---------+ |   |         :            :
  *    |             |   |         :            :
  *    +-------------+ <-+.........:............:
  *    ^^|_________| :
  *    ||     |      :
  *    ||     +---< SB_BUTTON_WIDTH
  *    ||            :
  *    |+------< SB_PADDING
  *    |:            :
  *    +----< SB_BORDER_WIDTH
  *     :            :
  *     :............:
  *           |
  *           +---< SB_WIDTH_NEXT
  */

#endif
Revision:	1.19
Committed:	Tue Feb 19 10:47:03 2008 UTC (16 years, 3 months ago) by ayin
Content type:	text/plain
Branch:	MAIN
Changes since 1.18:	+3 -0 lines
Log Message:	Make scrollbar_{resize,mapping,show} methods of scrollBar_t.
#	Content
1	#ifndef SCROLLBAR_H
2	#define SCROLLBAR_H
3
4	#include <X11/Xlib.h>
5
6	struct rxvt_term;
7
8	#define R_SB_NEXT 1
9	#define R_SB_XTERM 2
10	#define R_SB_PLAIN 4
11	#define R_SB_RXVT 8
12
13	#define R_SB_ALIGN_CENTRE 0
14	#define R_SB_ALIGN_TOP 1
15	#define R_SB_ALIGN_BOTTOM 2
16
17	#define SB_WIDTH_NEXT 19
18	#define SB_WIDTH_XTERM 15
19	#define SB_WIDTH_PLAIN 7
20	#ifndef SB_WIDTH_RXVT
21	# define SB_WIDTH_RXVT 10
22	#endif
23
24	/*
25	* NeXT scrollbar defines
26	*/
27	#define SB_PADDING 1
28	#define SB_BORDER_WIDTH 1
29	#define SB_BEVEL_WIDTH_UPPER_LEFT 1
30	#define SB_BEVEL_WIDTH_LOWER_RIGHT 2
31	#define SB_LEFT_PADDING (SB_PADDING + SB_BORDER_WIDTH)
32	#define SB_MARGIN_SPACE (SB_PADDING * 2)
33	#define SB_BUTTON_WIDTH (SB_WIDTH_NEXT - SB_MARGIN_SPACE - SB_BORDER_WIDTH)
34	#define SB_BUTTON_HEIGHT (SB_BUTTON_WIDTH)
35	#define SB_BUTTON_SINGLE_HEIGHT (SB_BUTTON_HEIGHT + SB_PADDING)
36	#define SB_BUTTON_BOTH_HEIGHT (SB_BUTTON_SINGLE_HEIGHT * 2)
37	#define SB_BUTTON_TOTAL_HEIGHT (SB_BUTTON_BOTH_HEIGHT + SB_PADDING)
38	#define SB_BUTTON_BEVEL_X (SB_LEFT_PADDING)
39	#define SB_BUTTON_FACE_X (SB_BUTTON_BEVEL_X + SB_BEVEL_WIDTH_UPPER_LEFT)
40	#define SB_THUMB_MIN_HEIGHT (SB_BUTTON_WIDTH - (SB_PADDING * 2))
41
42	enum sb_state {
43	STATE_IDLE = 1,
44	STATE_MOTION,
45	STATE_UP,
46	STATE_DOWN,
47	};
48
49	struct scrollBar_t {
50	rxvt_term *term;
51	char state; /* scrollbar state */
52	char init; /* scrollbar has been initialised */
53	unsigned int beg; /* slider sub-window begin height */
54	unsigned int end; /* slider sub-window end height */
55	unsigned int top; /* slider top position */
56	unsigned int bot; /* slider bottom position */
57	unsigned int style; /* style: rxvt, xterm, next */
58	unsigned int width; /* scrollbar width */
59	int shadow; /* scrollbar shadow width */
60	int last_bot; /* scrollbar last bottom position */
61	int last_top; /* scrollbar last top position */
62	int last_state; /* scrollbar last state */
63	int len;
64	unsigned char align;
65	Window win;
66	Cursor leftptr_cursor;
67	int (rxvt_term::*update)(int, int, int, int);
68	void setup (rxvt_term *);
69	// update style dependent data
70	void update_data ();
71	void resize ();
72	int map (int);
73	int show (int);
74
75	bool upButton (int y)
76	{
77	if (style == R_SB_NEXT)
78	return y > end && y <= end + width + 1;
79	if (style == R_SB_RXVT)
80	return y < beg;
81	return false;
82	}
83	bool dnButton (int y)
84	{
85	if (style == R_SB_NEXT)
86	return y > end + width + 1;
87	if (style == R_SB_RXVT)
88	return y > end;
89	return false;
90	}
91	unsigned min_height ()
92	{
93	return style == R_SB_NEXT ? SB_THUMB_MIN_HEIGHT : 10;
94	}
95	unsigned size ()
96	{
97	return end - beg - min_height ();
98	}
99	unsigned total_width ()
100	{
101	return width + shadow * 2;
102	}
103	};
104
105	#define scrollbar_above_slider(y) ((y) < scrollBar.top)
106	#define scrollbar_below_slider(y) ((y) > scrollBar.bot)
107	#define scrollbar_position(y) ((y) - scrollBar.beg)
108
109	/*
110	* +-------------+
111	* \| \| <---< SB_PADDING
112	* \| ::::::::::: \|
113	* \| ::::::::::: \|
114	* '''''''''''''''''
115	* ,,,,,,,,,,,,,,,,,
116	* \| ::::::::::: \|
117	* \| ::::::::::: \|
118	* \| +---------------< SB_BEVEL_WIDTH_UPPER_LEFT
119	* \| \| :::::::: \|
120	* \| V :::: vv-------< SB_BEVEL_WIDTH_LOWER_RIGHT
121	* \| +---------+ \|
122	* \| \| ......%%\| \|
123	* \| \| ......%%\| \|
124	* \| \| .. ()..%%\| \|
125	* \| \| ......%%\| \|
126	* \| \| %%%%%%%%\| \|
127	* \| +---------+ \| <.........................
128	* \| \| <---< SB_PADDING :
129	* \| +---------+ \| <-+.......... :---< SB_BUTTON_TOTAL_HEIGHT
130	* \| \| ......%%\| \| \| : :
131	* \| \| ../\..%%\| \| \|---< SB_BUTTON_HEIGHT :
132	* \| \| %%%%%%%%\| \| \| : :
133	* \| +---------+ \| <-+ : :
134	* \| \| : :
135	* \| +---------+ \| <-+ :---< SB_BUTTON_BOTH_HEIGHT
136	* \| \| ......%%\| \| \| : :
137	* \| \| ..\/..%%\| \| \| : :
138	* \| \| %%%%%%%%\| \| \|---< SB_BUTTON_SINGLE_HEIGHT
139	* \| +---------+ \| \| : :
140	* \| \| \| : :
141	* +-------------+ <-+.........:............:
142	* ^^\|_________\| :
143	* \|\| \| :
144	* \|\| +---< SB_BUTTON_WIDTH
145	* \|\| :
146	* \|+------< SB_PADDING
147	* \|: :
148	* +----< SB_BORDER_WIDTH
149	* : :
150	* :............:
151	* \|
152	* +---< SB_WIDTH_NEXT
153	*/
154
155	#endif