1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
* Copyright (C) 1997-2004, Michael Jennings
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of the Software, its documentation and marketing & publicity
* materials, and acknowledgment shall be given in the documentation, materials
* and software packages that this Software was used.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef _SCROLLBAR_H
#define _SCROLLBAR_H
#include <X11/Xfuncproto.h>
#include <ctype.h>
#include "events.h"
#include "pixmap.h"
/************ Macros and Definitions ************/
/* Scrollbar types we support */
#define SCROLLBAR_MOTIF 1
#define SCROLLBAR_XTERM 2
#define SCROLLBAR_NEXT 3
/* Scrollbar states */
#define SCROLLBAR_STATE_VISIBLE (1UL << 0)
#define SCROLLBAR_STATE_MOVING (1UL << 1)
#define SCROLLBAR_STATE_UP_CLICKED (1UL << 2)
#define SCROLLBAR_STATE_DOWN_CLICKED (1UL << 3)
#define SCROLLBAR_STATE_ANCHOR_CLICKED (1UL << 4)
#define SCROLLBAR_STATE_MOTION_MASK (SCROLLBAR_STATE_UP_CLICKED | SCROLLBAR_STATE_DOWN_CLICKED | SCROLLBAR_STATE_ANCHOR_CLICKED | SCROLLBAR_STATE_MOVING)
/* Scrollbar state macros */
#define scrollbar_is_visible() (scrollbar.state & SCROLLBAR_STATE_VISIBLE)
#define scrollbar_is_moving() (scrollbar.state & SCROLLBAR_STATE_MOVING)
#define scrollbar_uparrow_is_pressed() (scrollbar.state & SCROLLBAR_STATE_UP_CLICKED)
#define scrollbar_downarrow_is_pressed() (scrollbar.state & SCROLLBAR_STATE_DOWN_CLICKED)
#define scrollbar_arrow_is_pressed() (scrollbar.state & (SCROLLBAR_STATE_UP_CLICKED | SCROLLBAR_STATE_DOWN_CLICKED))
#define scrollbar_anchor_is_pressed() (scrollbar.state & SCROLLBAR_STATE_ANCHOR_CLICKED)
#define scrollbar_cancel_motion() (scrollbar.state &= ~(SCROLLBAR_STATE_MOTION_MASK))
#define scrollbar_set_visible(bit) ((bit) ? (scrollbar.state |= SCROLLBAR_STATE_VISIBLE) : (scrollbar.state &= ~(SCROLLBAR_STATE_VISIBLE)))
#define scrollbar_set_motion(bit) ((bit) ? (scrollbar.state |= SCROLLBAR_STATE_MOVING) : (scrollbar.state &= ~(SCROLLBAR_STATE_MOVING)))
#define scrollbar_set_uparrow_pressed(bit) ((bit) ? (scrollbar.state |= SCROLLBAR_STATE_UP_CLICKED) : (scrollbar.state &= ~(SCROLLBAR_STATE_UP_CLICKED)))
#define scrollbar_set_downarrow_pressed(bit) ((bit) ? (scrollbar.state |= SCROLLBAR_STATE_DOWN_CLICKED) : (scrollbar.state &= ~(SCROLLBAR_STATE_DOWN_CLICKED)))
#define scrollbar_set_anchor_pressed(bit) ((bit) ? (scrollbar.state |= SCROLLBAR_STATE_ANCHOR_CLICKED) : (scrollbar.state &= ~(SCROLLBAR_STATE_ANCHOR_CLICKED)))
/* The various scrollbar elements */
#define scrollbar_win_is_trough(w) (scrollbar_is_visible() && (w) == scrollbar.win)
#define scrollbar_win_is_uparrow(w) ((w) == scrollbar.up_win)
#define scrollbar_win_is_downarrow(w) ((w) == scrollbar.dn_win)
#define scrollbar_win_is_anchor(w) ((w) == scrollbar.sa_win)
#define scrollbar_is_pixmapped() (images[image_sb].mode & MODE_MASK)
#define scrollbar_uparrow_is_pixmapped() (images[image_up].mode & MODE_MASK)
#define scrollbar_downarrow_is_pixmapped() (images[image_down].mode & MODE_MASK)
#define scrollbar_anchor_is_pixmapped() (images[image_sa].mode & MODE_MASK)
/* Scrollbar dimensions */
#define scrollbar_scrollarea_height() (scrollbar.scrollarea_end - scrollbar.scrollarea_start)
#define scrollbar_anchor_width() ((scrollbar.type == SCROLLBAR_XTERM) ? (scrollbar.win_width) : (scrollbar.width))
#define scrollbar_anchor_height() (MAX((scrollbar.anchor_bottom - scrollbar.anchor_top), 2))
#define scrollbar_trough_width() (scrollbar.win_width)
#define scrollbar_trough_height() (scrollbar.win_height)
#define scrollbar_arrow_width() (scrollbar.width)
#define scrollbar_arrow_height() (scrollbar.width)
/* Scrollbar positions */
#define scrollbar_is_above_anchor(w, y) (!scrollbar_win_is_anchor(w) && ((y) <= scrollbar.anchor_top))
#define scrollbar_is_below_anchor(w, y) (!scrollbar_win_is_anchor(w) && ((y) >= scrollbar.anchor_bottom))
#define scrollbar_position(y) ((y) - scrollbar.scrollarea_start)
#define scrollbar_up_loc() (scrollbar.up_arrow_loc)
#define scrollbar_dn_loc() (scrollbar.down_arrow_loc)
/* Scrollbar operations */
#if 0
#define map_scrollbar(show) do {PrivMode(show, PrivMode_scrollbar); if (scrollbar_mapping(show)) {scr_touch(); parent_resize();}} while (0)
#else
#define map_scrollbar(show) do {PrivMode(show, PrivMode_scrollbar); if (scrollbar_mapping(show)) {parent_resize();}} while (0)
#endif
#define scrollbar_map_arrows() do {XMapWindow(Xdisplay, scrollbar.up_win); XMapWindow(Xdisplay, scrollbar.dn_win);} while (0)
#define scrollbar_unmap_arrows() do {XUnmapWindow(Xdisplay, scrollbar.up_win); XUnmapWindow(Xdisplay, scrollbar.dn_win);} while (0)
#define scrollbar_get_shadow() ((scrollbar.type == SCROLLBAR_XTERM) ? (0) : (scrollbar.shadow))
#define scrollbar_set_shadow(s) (scrollbar.shadow = (s))
#define scrollbar_get_type() (scrollbar.type)
#define scrollbar_set_type(t) (scrollbar.type = (t))
#define scrollbar_get_width() (scrollbar.width)
#define scrollbar_set_width(w) (scrollbar.width = (w))
#define scrollbar_get_win() (scrollbar.win)
#define scrollbar_get_uparrow_win() (scrollbar.up_win)
#define scrollbar_get_downarrow_win() (scrollbar.dn_win)
#define scrollbar_get_anchor_win() (scrollbar.sa_win)
/************ Structures ************/
typedef struct {
Window win, up_win, dn_win, sa_win;
short scrollarea_start, scrollarea_end;
short anchor_top, anchor_bottom;
unsigned char state;
unsigned int type:2;
unsigned int init:1;
unsigned int shadow:5;
unsigned short width, height;
unsigned short win_width, win_height;
short up_arrow_loc, down_arrow_loc;
} scrollbar_t;
/************ Variables ************/
extern scrollbar_t scrollbar;
#ifdef SCROLLBAR_BUTTON_CONTINUAL_SCROLLING
extern short scroll_arrow_delay;
#endif
/************ Function Prototypes ************/
_XFUNCPROTOBEGIN
extern void scrollbar_event_init_dispatcher(void);
extern unsigned char sb_handle_configure_notify(event_t *);
extern unsigned char sb_handle_enter_notify(event_t *);
extern unsigned char sb_handle_leave_notify(event_t *);
extern unsigned char sb_handle_focus_in(event_t *);
extern unsigned char sb_handle_focus_out(event_t *);
extern unsigned char sb_handle_expose(event_t *);
extern unsigned char sb_handle_button_press(event_t *);
extern unsigned char sb_handle_button_release(event_t *);
extern unsigned char sb_handle_motion_notify(event_t *);
extern unsigned char scrollbar_dispatch_event(event_t *);
extern void scrollbar_draw_uparrow(unsigned char image_state, unsigned char force_modes);
extern unsigned char scrollbar_move_uparrow(void);
extern void scrollbar_draw_downarrow(unsigned char image_state, unsigned char force_modes);
extern unsigned char scrollbar_move_downarrow(void);
extern void scrollbar_draw_anchor(unsigned char image_state, unsigned char force_modes);
extern unsigned char scrollbar_move_anchor(void);
extern void scrollbar_draw_trough(unsigned char image_state, unsigned char force_modes);
extern void scrollbar_init(int, int);
extern unsigned char scrollbar_mapping(unsigned char);
extern void scrollbar_reset(void);
extern void scrollbar_calc_size(int width, int height);
extern void scrollbar_resize(int, int);
extern void scrollbar_change_type(unsigned int);
extern void scrollbar_change_width(unsigned short);
extern void scrollbar_drawing_init(void);
extern unsigned char scrollbar_set_focus(short has_focus);
extern unsigned char scrollbar_anchor_update_position(short mouseoffset);
extern void scrollbar_draw(unsigned char image_state, unsigned char force_modes);
extern void scrollbar_reposition_and_draw(unsigned char force_modes);
extern void scrollbar_reposition_and_always_draw(void);
extern unsigned char scrollbar_show(short);
_XFUNCPROTOEND
#endif /* _SCROLLBAR_H */
|
