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/cvs/rxvt-unicode/src/scrollbar-rxvt.C
Revision: 1.10
Committed: Mon Jun 21 22:24:07 2004 UTC (19 years, 11 months ago) by root
Content type: text/plain
Branch: MAIN
CVS Tags: rel-3_6, rel-3_5, rel-3_4, rel-3_3, rel-3_2
Changes since 1.9: +25 -28 lines
Log Message:
*** empty log message ***

File Contents

# Content
1 /*--------------------------------*-C-*---------------------------------*
2 * File: scrollbar-rxvt.C
3 *----------------------------------------------------------------------*
4 *
5 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
6 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
7 * Copyright (c) 2004 Marc Lehmann <pcg@goof.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 {
43 case +1:
44 top = topShadowGC;
45 bot = botShadowGC;
46 break;
47 case -1:
48 top = botShadowGC;
49 bot = topShadowGC;
50 break;
51 default:
52 top = bot = scrollbarGC;
53 break;
54 }
55
56 /* fill triangle */
57 pt[0].x = x;
58 pt[1].x = x + sz - 1;
59 pt[2].x = x + sz2;
60 if (dirn == UP)
61 {
62 pt[0].y = pt[1].y = y + sz - 1;
63 pt[2].y = y;
64 }
65 else
66 {
67 pt[0].y = pt[1].y = y;
68 pt[2].y = y + sz - 1;
69 }
70
71 XFillPolygon (display->display, scrollBar.win, scrollbarGC,
72 pt, 3, Convex, CoordModeOrigin);
73
74 /* draw base */
75 XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
76 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
77
78 /* draw shadow on left */
79 pt[1].x = x + sz2 - 1;
80 pt[1].y = y + (dirn == UP ? 0 : sz - 1);
81 XDrawLine (display->display, scrollBar.win, top,
82 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
83
84 #if (SHADOW > 1)
85 /* doubled */
86 pt[0].x++;
87 if (dirn == UP)
88 {
89 pt[0].y--;
90 pt[1].y++;
91 }
92 else
93 {
94 pt[0].y++;
95 pt[1].y--;
96 }
97 XDrawLine (display->display, scrollBar.win, top,
98 pt[0].x, pt[0].y, pt[1].x, pt[1].y);
99 #endif
100 /* draw shadow on right */
101 pt[1].x = x + sz - 1;
102 /* pt[2].x = x + sz2; */
103 pt[1].y = y + (dirn == UP ? sz - 1 : 0);
104 pt[2].y = y + (dirn == UP ? 0 : sz - 1);
105 XDrawLine (display->display, scrollBar.win, bot,
106 pt[2].x, pt[2].y, pt[1].x, pt[1].y);
107 #if (SHADOW > 1)
108 /* doubled */
109 pt[1].x--;
110 if (dirn == UP)
111 {
112 pt[2].y++;
113 pt[1].y--;
114 }
115 else
116 {
117 pt[2].y--;
118 pt[1].y++;
119 }
120
121 XDrawLine (display->display, scrollBar.win, bot,
122 pt[2].x, pt[2].y, pt[1].x, pt[1].y);
123 #endif
124 }
125
126 int
127 rxvt_term::scrollbar_show_rxvt (int update __attribute__ ((unused)), int last_top, int last_bot, int scrollbar_len)
128 {
129 int sbshadow = sb_shadow;
130 int sbwidth = (int)scrollBar.width;
131
132 if ((scrollBar.init & R_SB_RXVT) == 0)
133 {
134 scrollBar.init |= R_SB_RXVT;
135 if (sbshadow)
136 {
137 XSetWindowBackground (display->display, scrollBar.win, PixColors[Color_trough]);
138 XClearWindow (display->display, scrollBar.win);
139 }
140 }
141 else
142 {
143 /* instead of XClearWindow (display->display, scrollBar.win); */
144 if (last_top < scrollBar.top)
145 XClearArea (display->display, scrollBar.win,
146 sbshadow, last_top,
147 sbwidth, (scrollBar.top - last_top),
148 False);
149
150 if (scrollBar.bot < last_bot)
151 XClearArea (display->display, scrollBar.win,
152 sbshadow, scrollBar.bot,
153 sbwidth, (last_bot - scrollBar.bot),
154 False);
155 }
156
157 /* scrollbar slider */
158 #ifdef SB_BORDER
159 {
160 int xofs;
161
162 if (Options & Opt_scrollBar_right)
163 xofs = 0;
164 else
165 xofs = sbshadow ? sbwidth : sbwidth - 1;
166
167 XDrawLine (display->display, scrollBar.win, botShadowGC,
168 xofs, 0, xofs, scrollBar.end + sbwidth);
169 }
170 #endif
171
172 XFillRectangle (display->display, scrollBar.win, scrollbarGC,
173 sbshadow, scrollBar.top, sbwidth,
174 scrollbar_len);
175
176 if (sbshadow)
177 /* trough shadow */
178 rxvt_Draw_Shadow (display->display, scrollBar.win,
179 botShadowGC, topShadowGC,
180 0, 0,
181 sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
182 scrollBar.end + (sbwidth + 1) + sbshadow);
183
184 /* shadow for scrollbar slider */
185 rxvt_Draw_Shadow (display->display, scrollBar.win,
186 topShadowGC, botShadowGC,
187 sbshadow, scrollBar.top, sbwidth,
188 scrollbar_len);
189
190 /* Redraw scrollbar arrows */
191 Draw_button (sbshadow, sbshadow, (scrollbar_isUp () ? -1 : +1), UP);
192 Draw_button (sbshadow, scrollBar.end + 1, (scrollbar_isDn () ? -1 : +1), DN);
193
194 return 1;
195 }
196 #endif /* RXVT_SCROLLBAR */
197 /*----------------------- end-of-file (C source) -----------------------*/