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

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

  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;
  }
};

#define scrollbar_TotalWidth()  (scrollBar.width + scrollBar.shadow * 2)
#define scrollbar_isMotion()    (scrollBar.state == 'm')
#define scrollbar_isUp()        (scrollBar.state == 'U')
#define scrollbar_isDn()        (scrollBar.state == 'D')
#define scrollbar_isUpDn()      (scrollbar_isUp () || scrollbar_isDn ())

#define SCROLLNEXT_MINHEIGHT    SB_THUMB_MIN_HEIGHT
#define SCROLLRXVT_MINHEIGHT    10

#define scrollbar_minheight()   (scrollBar.style == R_SB_NEXT        \
                                 ? SCROLLNEXT_MINHEIGHT                 \
                                 : SCROLLRXVT_MINHEIGHT)
#define scrollbar_above_slider(y)       ((y) < scrollBar.top)
#define scrollbar_below_slider(y)       ((y) > scrollBar.bot)
#define scrollbar_position(y)           ((y) - scrollBar.beg)
#define scrollbar_size()                (scrollBar.end - scrollBar.beg \
                                         - scrollbar_minheight ())

#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))
 /*
  *    +-------------+
  *    |             | <---< 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:	1.12
Committed:	Mon Jan 28 10:54:54 2008 UTC (16 years, 3 months ago) by ayin
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-9_02
Changes since 1.11:	+22 -11 lines
Log Message:	Replace scrollbar {up,dn}Button macros with methods.
#	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	struct scrollBar_t {
14	char state; /* scrollbar state */
15	char init; /* scrollbar has been initialised */
16	unsigned int beg; /* slider sub-window begin height */
17	unsigned int end; /* slider sub-window end height */
18	unsigned int top; /* slider top position */
19	unsigned int bot; /* slider bottom position */
20	unsigned int style; /* style: rxvt, xterm, next */
21	unsigned int width; /* scrollbar width */
22	int shadow; /* scrollbar shadow width */
23	int last_bot; /* scrollbar last bottom position */
24	int last_top; /* scrollbar last top position */
25	int last_state; /* scrollbar last state */
26	int len;
27	unsigned char align;
28	Window win;
29	Cursor leftptr_cursor;
30	int (rxvt_term::*update)(int, int, int, int);
31
32	void setIdle() { state = 1 ; }
33	void setMotion() { state = 'm'; }
34	void setUp() { state = 'U'; }
35	void setDn() { state = 'D'; }
36
37	bool upButton (int y)
38	{
39	if (style == R_SB_NEXT)
40	return y > end && y <= end + width + 1;
41	if (style == R_SB_RXVT)
42	return y < beg;
43	return false;
44	}
45	bool dnButton (int y)
46	{
47	if (style == R_SB_NEXT)
48	return y > end + width + 1;
49	if (style == R_SB_RXVT)
50	return y > end;
51	return false;
52	}
53	};
54
55	#define scrollbar_TotalWidth() (scrollBar.width + scrollBar.shadow * 2)
56	#define scrollbar_isMotion() (scrollBar.state == 'm')
57	#define scrollbar_isUp() (scrollBar.state == 'U')
58	#define scrollbar_isDn() (scrollBar.state == 'D')
59	#define scrollbar_isUpDn() (scrollbar_isUp () \|\| scrollbar_isDn ())
60
61	#define SCROLLNEXT_MINHEIGHT SB_THUMB_MIN_HEIGHT
62	#define SCROLLRXVT_MINHEIGHT 10
63
64	#define scrollbar_minheight() (scrollBar.style == R_SB_NEXT \
65	? SCROLLNEXT_MINHEIGHT \
66	: SCROLLRXVT_MINHEIGHT)
67	#define scrollbar_above_slider(y) ((y) < scrollBar.top)
68	#define scrollbar_below_slider(y) ((y) > scrollBar.bot)
69	#define scrollbar_position(y) ((y) - scrollBar.beg)
70	#define scrollbar_size() (scrollBar.end - scrollBar.beg \
71	- scrollbar_minheight ())
72
73	#define R_SB_ALIGN_CENTRE 0
74	#define R_SB_ALIGN_TOP 1
75	#define R_SB_ALIGN_BOTTOM 2
76
77	#define SB_WIDTH_NEXT 19
78	#define SB_WIDTH_XTERM 15
79	#define SB_WIDTH_PLAIN 7
80	#ifndef SB_WIDTH_RXVT
81	# define SB_WIDTH_RXVT 10
82	#endif
83
84	/*
85	* NeXT scrollbar defines
86	*/
87	#define SB_PADDING 1
88	#define SB_BORDER_WIDTH 1
89	#define SB_BEVEL_WIDTH_UPPER_LEFT 1
90	#define SB_BEVEL_WIDTH_LOWER_RIGHT 2
91	#define SB_LEFT_PADDING (SB_PADDING + SB_BORDER_WIDTH)
92	#define SB_MARGIN_SPACE (SB_PADDING * 2)
93	#define SB_BUTTON_WIDTH (SB_WIDTH_NEXT - SB_MARGIN_SPACE - SB_BORDER_WIDTH)
94	#define SB_BUTTON_HEIGHT (SB_BUTTON_WIDTH)
95	#define SB_BUTTON_SINGLE_HEIGHT (SB_BUTTON_HEIGHT + SB_PADDING)
96	#define SB_BUTTON_BOTH_HEIGHT (SB_BUTTON_SINGLE_HEIGHT * 2)
97	#define SB_BUTTON_TOTAL_HEIGHT (SB_BUTTON_BOTH_HEIGHT + SB_PADDING)
98	#define SB_BUTTON_BEVEL_X (SB_LEFT_PADDING)
99	#define SB_BUTTON_FACE_X (SB_BUTTON_BEVEL_X + SB_BEVEL_WIDTH_UPPER_LEFT)
100	#define SB_THUMB_MIN_HEIGHT (SB_BUTTON_WIDTH - (SB_PADDING * 2))
101	/*
102	* +-------------+
103	* \| \| <---< SB_PADDING
104	* \| ::::::::::: \|
105	* \| ::::::::::: \|
106	* '''''''''''''''''
107	* ,,,,,,,,,,,,,,,,,
108	* \| ::::::::::: \|
109	* \| ::::::::::: \|
110	* \| +---------------< SB_BEVEL_WIDTH_UPPER_LEFT
111	* \| \| :::::::: \|
112	* \| V :::: vv-------< SB_BEVEL_WIDTH_LOWER_RIGHT
113	* \| +---------+ \|
114	* \| \| ......%%\| \|
115	* \| \| ......%%\| \|
116	* \| \| .. ()..%%\| \|
117	* \| \| ......%%\| \|
118	* \| \| %%%%%%%%\| \|
119	* \| +---------+ \| <.........................
120	* \| \| <---< SB_PADDING :
121	* \| +---------+ \| <-+.......... :---< SB_BUTTON_TOTAL_HEIGHT
122	* \| \| ......%%\| \| \| : :
123	* \| \| ../\..%%\| \| \|---< SB_BUTTON_HEIGHT :
124	* \| \| %%%%%%%%\| \| \| : :
125	* \| +---------+ \| <-+ : :
126	* \| \| : :
127	* \| +---------+ \| <-+ :---< SB_BUTTON_BOTH_HEIGHT
128	* \| \| ......%%\| \| \| : :
129	* \| \| ..\/..%%\| \| \| : :
130	* \| \| %%%%%%%%\| \| \|---< SB_BUTTON_SINGLE_HEIGHT
131	* \| +---------+ \| \| : :
132	* \| \| \| : :
133	* +-------------+ <-+.........:............:
134	* ^^\|_________\| :
135	* \|\| \| :
136	* \|\| +---< SB_BUTTON_WIDTH
137	* \|\| :
138	* \|+------< SB_PADDING
139	* \|: :
140	* +----< SB_BORDER_WIDTH
141	* : :
142	* :............:
143	* \|
144	* +---< SB_WIDTH_NEXT
145	*/
146
147	#endif