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/cvs/rxvt-unicode/src/scrollbar-rxvt.C
Revision: 1.4
Committed: Sat Jan 31 00:20:21 2004 UTC (20 years, 3 months ago) by pcg
Content type: text/plain
Branch: MAIN
Changes since 1.3: +43 -45 lines
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File Contents

# Content
1 /*--------------------------------*-C-*---------------------------------*
2 * File: scrollbar-rxvt.c
3 *----------------------------------------------------------------------*
4 * $Id: scrollbar-rxvt.C,v 1.3 2003/11/25 11:52:42 pcg Exp $
5 *
6 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
7 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *----------------------------------------------------------------------*/
23
24 #include "../config.h" /* NECESSARY */
25 #include "rxvt.h" /* NECESSARY */
26 #include "scrollbar-rxvt.intpro" /* PROTOS for internal routines */
27
28 /*----------------------------------------------------------------------*/
29 #if defined(RXVT_SCROLLBAR)
30
31 /* draw triangular button with a shadow of SHADOW (1 or 2) pixels */
32 void
33 rxvt_term::Draw_button (int x, int y, int state, int dirn)
34 {
35 unsigned int sz, sz2;
36 XPoint pt[3];
37 GC top, bot;
38
39 sz = scrollBar.width;
40 sz2 = sz / 2;
41 switch (state) {
42 case +1:
43 top = topShadowGC;
44 bot = botShadowGC;
45 break;
46 case -1:
47 top = botShadowGC;
48 bot = topShadowGC;
49 break;
50 default:
51 top = bot = scrollbarGC;
52 break;
53 }
54
55 /* fill triangle */
56 pt[0].x = x;
57 pt[1].x = x + sz - 1;
58 pt[2].x = x + sz2;
59 if (dirn == UP) {
60 pt[0].y = pt[1].y = y + sz - 1;
61 pt[2].y = y;
62 } else {
63 pt[0].y = pt[1].y = y;
64 pt[2].y = y + sz - 1;
65 }
66 XFillPolygon(Xdisplay, scrollBar.win, scrollbarGC,
67 pt, 3, Convex, CoordModeOrigin);
68
69 /* draw base */
70 XDrawLine(Xdisplay, scrollBar.win, (dirn == UP ? bot : top),
71 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
72
73 /* draw shadow on left */
74 pt[1].x = x + sz2 - 1;
75 pt[1].y = y + (dirn == UP ? 0 : sz - 1);
76 XDrawLine(Xdisplay, scrollBar.win, top,
77 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
78
79 #if (SHADOW > 1)
80 /* doubled */
81 pt[0].x++;
82 if (dirn == UP) {
83 pt[0].y--;
84 pt[1].y++;
85 } else {
86 pt[0].y++;
87 pt[1].y--;
88 }
89 XDrawLine(Xdisplay, scrollBar.win, top,
90 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
91 #endif
92 /* draw shadow on right */
93 pt[1].x = x + sz - 1;
94 /* pt[2].x = x + sz2; */
95 pt[1].y = y + (dirn == UP ? sz - 1 : 0);
96 pt[2].y = y + (dirn == UP ? 0 : sz - 1);
97 XDrawLine(Xdisplay, scrollBar.win, bot,
98 pt[2].x, pt[2].y, pt[1].x, pt[1].y);
99 #if (SHADOW > 1)
100 /* doubled */
101 pt[1].x--;
102 if (dirn == UP) {
103 pt[2].y++;
104 pt[1].y--;
105 } else {
106 pt[2].y--;
107 pt[1].y++;
108 }
109 XDrawLine(Xdisplay, scrollBar.win, bot,
110 pt[2].x, pt[2].y, pt[1].x, pt[1].y);
111 #endif
112 }
113
114 int
115 rxvt_term::scrollbar_show_rxvt (int update __attribute__((unused)), int last_top, int last_bot, int scrollbar_len)
116 {
117 int sbshadow = sb_shadow;
118 int sbwidth = (int)scrollBar.width;
119
120 if ((scrollBar.init & R_SB_RXVT) == 0) {
121 XGCValues gcvalue;
122
123 scrollBar.init |= R_SB_RXVT;
124 gcvalue.foreground = PixColors[Color_trough];
125 if (sbshadow) {
126 XSetWindowBackground(Xdisplay, scrollBar.win,
127 gcvalue.foreground);
128 XClearWindow(Xdisplay, scrollBar.win);
129 }
130 } else {
131 /* instead of XClearWindow (Xdisplay, scrollBar.win); */
132 if (last_top < scrollBar.top)
133 XClearArea(Xdisplay, scrollBar.win,
134 sbshadow, last_top,
135 sbwidth, (scrollBar.top - last_top),
136 False);
137
138 if (scrollBar.bot < last_bot)
139 XClearArea(Xdisplay, scrollBar.win,
140 sbshadow, scrollBar.bot,
141 sbwidth, (last_bot - scrollBar.bot),
142 False);
143 }
144
145 /* scrollbar slider */
146 #ifdef SB_BORDER
147 {
148 int xofs;
149
150 if (Options & Opt_scrollBar_right)
151 xofs = 0;
152 else
153 xofs = sbshadow ? sbwidth : sbwidth - 1;
154
155 XDrawLine(Xdisplay, scrollBar.win, botShadowGC,
156 xofs, 0, xofs, scrollBar.end + sbwidth);
157 }
158 #endif
159 XFillRectangle(Xdisplay, scrollBar.win, scrollbarGC,
160 sbshadow, scrollBar.top, sbwidth,
161 scrollbar_len);
162
163 if (sbshadow)
164 /* trough shadow */
165 rxvt_Draw_Shadow(Xdisplay, scrollBar.win,
166 botShadowGC, topShadowGC,
167 0, 0,
168 sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth() */
169 scrollBar.end + (sbwidth + 1) + sbshadow);
170 /* shadow for scrollbar slider */
171 rxvt_Draw_Shadow(Xdisplay, scrollBar.win,
172 topShadowGC, botShadowGC,
173 sbshadow, scrollBar.top, sbwidth,
174 scrollbar_len);
175
176 /*
177 * Redraw scrollbar arrows
178 */
179 Draw_button (sbshadow, sbshadow,
180 (scrollbar_isUp() ? -1 : +1), UP);
181 Draw_button (sbshadow, (scrollBar.end + 1),
182 (scrollbar_isDn() ? -1 : +1), DN);
183 return 1;
184 }
185 #endif /* RXVT_SCROLLBAR */
186 /*----------------------- end-of-file (C source) -----------------------*/