rxvt-unicode/src/scrollbar.h

#ifndef SCROLLBAR_H
#define SCROLLBAR_H

#include <X11/Xlib.h>

struct rxvt_term;

#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_OFF,
  STATE_IDLE,
  STATE_MOTION,
  STATE_UP,
  STATE_DOWN,
};

enum sb_style {
  R_SB_NEXT  = 1,
  R_SB_XTERM = 2,
  R_SB_PLAIN = 4,
  R_SB_RXVT  = 8,
};

enum sb_align {
  R_SB_ALIGN_CENTRE,
  R_SB_ALIGN_TOP,
  R_SB_ALIGN_BOTTOM,
};

struct scrollBar_t
{
  rxvt_term *term;
  sb_state        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                   */
  sb_style        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                     */
  sb_align        align;
  Window          win;
  Cursor          leftptr_cursor;
  int             (scrollBar_t::*update)(int);
  void setup (rxvt_term *);
  void resize ();
  int map (int);
  int show (int);
  void destroy ();

  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;
  }
  bool above_slider (int y)
  {
    return y < top;
  }
  bool below_slider (int y)
  {
    return y > bot;
  }
  int position (int y)
  {
    return y - beg;
  }


#if defined(NEXT_SCROLLBAR)
  GC              blackGC,
                  whiteGC,
                  grayGC,
                  darkGC,
                  stippleGC;
  Pixmap          dimple,
                  upArrow,
                  downArrow,
                  upArrowHi,
                  downArrowHi;
#endif

#if defined(RXVT_SCROLLBAR)
  GC              scrollbarGC,
                  topShadowGC,
                  botShadowGC;
#endif

#if defined(XTERM_SCROLLBAR)
  GC              xscrollbarGC,
                  ShadowGC;
#endif

#if defined(PLAIN_SCROLLBAR)
  GC              pscrollbarGC;
#endif

private:
  // update style dependent data
  void update_data ();

  // scrollbar-next.C
  int show_next (int);
  // scrollbar-rxvt.C
  int show_rxvt (int);
  // scrollbar-xterm.C
  int show_xterm (int);
  // scrollbar-plain.C
  int show_plain (int);

  void init_next ();
};

 /*
  *    +-------------+
  *    |             | <---< 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:	1.25
Committed:	Mon Aug 22 17:23:56 2011 UTC (12 years, 10 months ago) by sf-exg
Content type:	text/plain
Branch:	MAIN
Changes since 1.24:	+13 -4 lines
Log Message:	Convert scrollbar macros to inline functions.
#	Content
1	#ifndef SCROLLBAR_H
2	#define SCROLLBAR_H
3
4	#include <X11/Xlib.h>
5
6	struct rxvt_term;
7
8	#define SB_WIDTH_NEXT 19
9	#define SB_WIDTH_XTERM 15
10	#define SB_WIDTH_PLAIN 7
11	#ifndef SB_WIDTH_RXVT
12	# define SB_WIDTH_RXVT 10
13	#endif
14
15	/*
16	* NeXT scrollbar defines
17	*/
18	#define SB_PADDING 1
19	#define SB_BORDER_WIDTH 1
20	#define SB_BEVEL_WIDTH_UPPER_LEFT 1
21	#define SB_BEVEL_WIDTH_LOWER_RIGHT 2
22	#define SB_LEFT_PADDING (SB_PADDING + SB_BORDER_WIDTH)
23	#define SB_MARGIN_SPACE (SB_PADDING * 2)
24	#define SB_BUTTON_WIDTH (SB_WIDTH_NEXT - SB_MARGIN_SPACE - SB_BORDER_WIDTH)
25	#define SB_BUTTON_HEIGHT (SB_BUTTON_WIDTH)
26	#define SB_BUTTON_SINGLE_HEIGHT (SB_BUTTON_HEIGHT + SB_PADDING)
27	#define SB_BUTTON_BOTH_HEIGHT (SB_BUTTON_SINGLE_HEIGHT * 2)
28	#define SB_BUTTON_TOTAL_HEIGHT (SB_BUTTON_BOTH_HEIGHT + SB_PADDING)
29	#define SB_BUTTON_BEVEL_X (SB_LEFT_PADDING)
30	#define SB_BUTTON_FACE_X (SB_BUTTON_BEVEL_X + SB_BEVEL_WIDTH_UPPER_LEFT)
31	#define SB_THUMB_MIN_HEIGHT (SB_BUTTON_WIDTH - (SB_PADDING * 2))
32
33	enum sb_state {
34	STATE_OFF,
35	STATE_IDLE,
36	STATE_MOTION,
37	STATE_UP,
38	STATE_DOWN,
39	};
40
41	enum sb_style {
42	R_SB_NEXT = 1,
43	R_SB_XTERM = 2,
44	R_SB_PLAIN = 4,
45	R_SB_RXVT = 8,
46	};
47
48	enum sb_align {
49	R_SB_ALIGN_CENTRE,
50	R_SB_ALIGN_TOP,
51	R_SB_ALIGN_BOTTOM,
52	};
53
54	struct scrollBar_t
55	{
56	rxvt_term *term;
57	sb_state state; /* scrollbar state */
58	char init; /* scrollbar has been initialised */
59	unsigned int beg; /* slider sub-window begin height */
60	unsigned int end; /* slider sub-window end height */
61	unsigned int top; /* slider top position */
62	unsigned int bot; /* slider bottom position */
63	sb_style style; /* style: rxvt, xterm, next */
64	unsigned int width; /* scrollbar width */
65	int shadow; /* scrollbar shadow width */
66	int last_bot; /* scrollbar last bottom position */
67	int last_top; /* scrollbar last top position */
68	int last_state; /* scrollbar last state */
69	sb_align align;
70	Window win;
71	Cursor leftptr_cursor;
72	int (scrollBar_t::*update)(int);
73	void setup (rxvt_term *);
74	void resize ();
75	int map (int);
76	int show (int);
77	void destroy ();
78
79	bool upButton (int y)
80	{
81	if (style == R_SB_NEXT)
82	return y > end && y <= end + width + 1;
83	if (style == R_SB_RXVT)
84	return y < beg;
85	return false;
86	}
87	bool dnButton (int y)
88	{
89	if (style == R_SB_NEXT)
90	return y > end + width + 1;
91	if (style == R_SB_RXVT)
92	return y > end;
93	return false;
94	}
95	unsigned min_height ()
96	{
97	return style == R_SB_NEXT ? SB_THUMB_MIN_HEIGHT : 10;
98	}
99	unsigned size ()
100	{
101	return end - beg - min_height ();
102	}
103	unsigned total_width ()
104	{
105	return width + shadow * 2;
106	}
107	bool above_slider (int y)
108	{
109	return y < top;
110	}
111	bool below_slider (int y)
112	{
113	return y > bot;
114	}
115	int position (int y)
116	{
117	return y - beg;
118	}
119
120
121	#if defined(NEXT_SCROLLBAR)
122	GC blackGC,
123	whiteGC,
124	grayGC,
125	darkGC,
126	stippleGC;
127	Pixmap dimple,
128	upArrow,
129	downArrow,
130	upArrowHi,
131	downArrowHi;
132	#endif
133
134	#if defined(RXVT_SCROLLBAR)
135	GC scrollbarGC,
136	topShadowGC,
137	botShadowGC;
138	#endif
139
140	#if defined(XTERM_SCROLLBAR)
141	GC xscrollbarGC,
142	ShadowGC;
143	#endif
144
145	#if defined(PLAIN_SCROLLBAR)
146	GC pscrollbarGC;
147	#endif
148
149	private:
150	// update style dependent data
151	void update_data ();
152
153	// scrollbar-next.C
154	int show_next (int);
155	// scrollbar-rxvt.C
156	int show_rxvt (int);
157	// scrollbar-xterm.C
158	int show_xterm (int);
159	// scrollbar-plain.C
160	int show_plain (int);
161
162	void init_next ();
163	};
164
165	/*
166	* +-------------+
167	* \| \| <---< SB_PADDING
168	* \| ::::::::::: \|
169	* \| ::::::::::: \|
170	* '''''''''''''''''
171	* ,,,,,,,,,,,,,,,,,
172	* \| ::::::::::: \|
173	* \| ::::::::::: \|
174	* \| +---------------< SB_BEVEL_WIDTH_UPPER_LEFT
175	* \| \| :::::::: \|
176	* \| V :::: vv-------< SB_BEVEL_WIDTH_LOWER_RIGHT
177	* \| +---------+ \|
178	* \| \| ......%%\| \|
179	* \| \| ......%%\| \|
180	* \| \| .. ()..%%\| \|
181	* \| \| ......%%\| \|
182	* \| \| %%%%%%%%\| \|
183	* \| +---------+ \| <.........................
184	* \| \| <---< SB_PADDING :
185	* \| +---------+ \| <-+.......... :---< SB_BUTTON_TOTAL_HEIGHT
186	* \| \| ......%%\| \| \| : :
187	* \| \| ../\..%%\| \| \|---< SB_BUTTON_HEIGHT :
188	* \| \| %%%%%%%%\| \| \| : :
189	* \| +---------+ \| <-+ : :
190	* \| \| : :
191	* \| +---------+ \| <-+ :---< SB_BUTTON_BOTH_HEIGHT
192	* \| \| ......%%\| \| \| : :
193	* \| \| ..\/..%%\| \| \| : :
194	* \| \| %%%%%%%%\| \| \|---< SB_BUTTON_SINGLE_HEIGHT
195	* \| +---------+ \| \| : :
196	* \| \| \| : :
197	* +-------------+ <-+.........:............:
198	* ^^\|_________\| :
199	* \|\| \| :
200	* \|\| +---< SB_BUTTON_WIDTH
201	* \|\| :
202	* \|+------< SB_PADDING
203	* \|: :
204	* +----< SB_BORDER_WIDTH
205	* : :
206	* :............:
207	* \|
208	* +---< SB_WIDTH_NEXT
209	*/
210
211	#endif