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.
#	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	1.11	struct scrollBar_t {
14	ayin	1.1	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	ayin	1.3	int shadow; /* scrollbar shadow width */
23	ayin	1.7	int last_bot; /* scrollbar last bottom position */
24			int last_top; /* scrollbar last top position */
25			int last_state; /* scrollbar last state */
26	ayin	1.9	int len;
27	ayin	1.6	unsigned char align;
28	ayin	1.1	Window win;
29	ayin	1.10	Cursor leftptr_cursor;
30	ayin	1.1	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	ayin	1.12
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	ayin	1.11	};
54	ayin	1.1
55	ayin	1.3	#define scrollbar_TotalWidth() (scrollBar.width + scrollBar.shadow * 2)
56	ayin	1.1	#define scrollbar_isMotion() (scrollBar.state == 'm')
57			#define scrollbar_isUp() (scrollBar.state == 'U')
58			#define scrollbar_isDn() (scrollBar.state == 'D')
59	ayin	1.5	#define scrollbar_isUpDn() (scrollbar_isUp () \|\| scrollbar_isDn ())
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