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

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 *);

  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 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:	1.14
Committed:	Tue Jan 29 14:45:55 2008 UTC (16 years, 3 months ago) by ayin
Content type:	text/plain
Branch:	MAIN
Changes since 1.13:	+2 -0 lines
Log Message:	Make setup_scrollbar a method of scrollBar_t.
#	User	Rev	Content
1	ayin	1.1	#ifndef SCROLLBAR_H
2			#define SCROLLBAR_H
3
4			#include <X11/Xlib.h>
5
6			struct rxvt_term;
7
8	ayin	1.12	#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	ayin	1.13	enum sb_state {
14			STATE_IDLE = 1,
15			STATE_MOTION,
16			STATE_UP,
17			STATE_DOWN,
18			};
19
20	ayin	1.11	struct scrollBar_t {
21	ayin	1.14	rxvt_term *term;
22	ayin	1.1	char state; /* scrollbar state */
23			char init; /* scrollbar has been initialised */
24			unsigned int beg; /* slider sub-window begin height */
25			unsigned int end; /* slider sub-window end height */
26			unsigned int top; /* slider top position */
27			unsigned int bot; /* slider bottom position */
28			unsigned int style; /* style: rxvt, xterm, next */
29			unsigned int width; /* scrollbar width */
30	ayin	1.3	int shadow; /* scrollbar shadow width */
31	ayin	1.7	int last_bot; /* scrollbar last bottom position */
32			int last_top; /* scrollbar last top position */
33			int last_state; /* scrollbar last state */
34	ayin	1.9	int len;
35	ayin	1.6	unsigned char align;
36	ayin	1.1	Window win;
37	ayin	1.10	Cursor leftptr_cursor;
38	ayin	1.1	int (rxvt_term::*update)(int, int, int, int);
39	ayin	1.14	void setup (rxvt_term *);
40	ayin	1.1
41	ayin	1.12	bool upButton (int y)
42			{
43			if (style == R_SB_NEXT)
44			return y > end && y <= end + width + 1;
45			if (style == R_SB_RXVT)
46			return y < beg;
47			return false;
48			}
49			bool dnButton (int y)
50			{
51			if (style == R_SB_NEXT)
52			return y > end + width + 1;
53			if (style == R_SB_RXVT)
54			return y > end;
55			return false;
56			}
57	ayin	1.11	};
58	ayin	1.1
59	ayin	1.3	#define scrollbar_TotalWidth() (scrollBar.width + scrollBar.shadow * 2)
60	ayin	1.1
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