rxvt-unicode/src/scrollbar-rxvt.C

/*--------------------------------*-C-*---------------------------------*
 * File:        scrollbar-rxvt.c
 *----------------------------------------------------------------------*
 *
 * Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
 * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *----------------------------------------------------------------------*/

#include "../config.h"          /* NECESSARY */
#include "rxvt.h"               /* NECESSARY */
#include "scrollbar-rxvt.intpro"        /* PROTOS for internal routines */

/*----------------------------------------------------------------------*/
#if defined(RXVT_SCROLLBAR)

/* draw triangular button with a shadow of SHADOW (1 or 2) pixels */
void
rxvt_term::Draw_button (int x, int y, int state, int dirn)
{
  unsigned int    sz, sz2;
  XPoint          pt[3];
  GC              top, bot;

  sz = scrollBar.width;
  sz2 = sz / 2;
  switch (state)
    {
      case +1:
        top = topShadowGC;
        bot = botShadowGC;
        break;
      case -1:
        top = botShadowGC;
        bot = topShadowGC;
        break;
      default:
        top = bot = scrollbarGC;
        break;
    }

  /* fill triangle */
  pt[0].x = x;
  pt[1].x = x + sz - 1;
  pt[2].x = x + sz2;
  if (dirn == UP)
    {
      pt[0].y = pt[1].y = y + sz - 1;
      pt[2].y = y;
    }
  else
    {
      pt[0].y = pt[1].y = y;
      pt[2].y = y + sz - 1;
    }
  XFillPolygon (display->display, scrollBar.win, scrollbarGC,
               pt, 3, Convex, CoordModeOrigin);

  /* draw base */
  XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
            pt[0].x, pt[0].y, pt[1].x, pt[1].y);

  /* draw shadow on left */
  pt[1].x = x + sz2 - 1;
  pt[1].y = y + (dirn == UP ? 0 : sz - 1);
  XDrawLine (display->display, scrollBar.win, top,
            pt[0].x, pt[0].y, pt[1].x, pt[1].y);

#if (SHADOW > 1)
  /* doubled */
  pt[0].x++;
  if (dirn == UP)
    {
      pt[0].y--;
      pt[1].y++;
    }
  else
    {
      pt[0].y++;
      pt[1].y--;
    }
  XDrawLine (display->display, scrollBar.win, top,
            pt[0].x, pt[0].y, pt[1].x, pt[1].y);
#endif
  /* draw shadow on right */
  pt[1].x = x + sz - 1;
  /*  pt[2].x = x + sz2; */
  pt[1].y = y + (dirn == UP ? sz - 1 : 0);
  pt[2].y = y + (dirn == UP ? 0 : sz - 1);
  XDrawLine (display->display, scrollBar.win, bot,
            pt[2].x, pt[2].y, pt[1].x, pt[1].y);
#if (SHADOW > 1)
  /* doubled */
  pt[1].x--;
  if (dirn == UP)
    {
      pt[2].y++;
      pt[1].y--;
    }
  else
    {
      pt[2].y--;
      pt[1].y++;
    }
  XDrawLine (display->display, scrollBar.win, bot,
            pt[2].x, pt[2].y, pt[1].x, pt[1].y);
#endif
}

int
rxvt_term::scrollbar_show_rxvt (int update __attribute__ ((unused)), int last_top, int last_bot, int scrollbar_len)
{
  int             sbshadow = sb_shadow;
  int             sbwidth = (int)scrollBar.width;

  if ((scrollBar.init & R_SB_RXVT) == 0)
    {
      XGCValues       gcvalue;

      scrollBar.init |= R_SB_RXVT;
      gcvalue.foreground = PixColors[Color_trough];
      if (sbshadow)
        {
          XSetWindowBackground (display->display, scrollBar.win,
                               gcvalue.foreground);
          XClearWindow (display->display, scrollBar.win);
        }
    }
  else
    {
      /* instead of XClearWindow (display->display, scrollBar.win); */
      if (last_top < scrollBar.top)
        XClearArea (display->display, scrollBar.win,
                   sbshadow, last_top,
                   sbwidth, (scrollBar.top - last_top),
                   False);

      if (scrollBar.bot < last_bot)
        XClearArea (display->display, scrollBar.win,
                   sbshadow, scrollBar.bot,
                   sbwidth, (last_bot - scrollBar.bot),
                   False);
    }

  /* scrollbar slider */
#ifdef SB_BORDER
  {
    int             xofs;

    if (Options & Opt_scrollBar_right)
      xofs = 0;
    else
      xofs = sbshadow ? sbwidth : sbwidth - 1;

    XDrawLine (display->display, scrollBar.win, botShadowGC,
              xofs, 0, xofs, scrollBar.end + sbwidth);
  }
#endif
  XFillRectangle (display->display, scrollBar.win, scrollbarGC,
                 sbshadow, scrollBar.top, sbwidth,
                 scrollbar_len);

  if (sbshadow)
    /* trough shadow */
    rxvt_Draw_Shadow (display->display, scrollBar.win,
                     botShadowGC, topShadowGC,
                     0, 0,
                     sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
                     scrollBar.end + (sbwidth + 1) + sbshadow);
  /* shadow for scrollbar slider */
  rxvt_Draw_Shadow (display->display, scrollBar.win,
                   topShadowGC, botShadowGC,
                   sbshadow, scrollBar.top, sbwidth,
                   scrollbar_len);

  /*
   * Redraw scrollbar arrows
   */
  Draw_button (sbshadow, sbshadow,
               (scrollbar_isUp () ? -1 : +1), UP);
  Draw_button (sbshadow, (scrollBar.end + 1),
               (scrollbar_isDn () ? -1 : +1), DN);
  return 1;
}
#endif                          /* RXVT_SCROLLBAR */
/*----------------------- end-of-file (C source) -----------------------*/
Revision:	1.8
Committed:	Fri Feb 13 12:16:21 2004 UTC (20 years, 3 months ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_1_0, rel-2_7, rel-2_4, rel-2_5, rel-2_2, rel-2_3, rel-2_0, rel-1_9
Changes since 1.7:	+18 -18 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	/---------------------------------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			*
8			* This program is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation; either version 2 of the License, or
11			* (at your option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* You should have received a copy of the GNU General Public License
19			* along with this program; if not, write to the Free Software
20			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21			----------------------------------------------------------------------/
22
23			#include "../config.h" /* NECESSARY */
24			#include "rxvt.h" /* NECESSARY */
25			#include "scrollbar-rxvt.intpro" /* PROTOS for internal routines */
26
27			/----------------------------------------------------------------------/
28			#if defined(RXVT_SCROLLBAR)
29
30			/* draw triangular button with a shadow of SHADOW (1 or 2) pixels */
31			void
32	pcg	1.4	rxvt_term::Draw_button (int x, int y, int state, int dirn)
33	pcg	1.1	{
34	pcg	1.6	unsigned int sz, sz2;
35			XPoint pt[3];
36			GC top, bot;
37
38			sz = scrollBar.width;
39			sz2 = sz / 2;
40			switch (state)
41			{
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			{
61			pt[0].y = pt[1].y = y + sz - 1;
62			pt[2].y = y;
63			}
64			else
65			{
66			pt[0].y = pt[1].y = y;
67			pt[2].y = y + sz - 1;
68			}
69	pcg	1.8	XFillPolygon (display->display, scrollBar.win, scrollbarGC,
70	pcg	1.6	pt, 3, Convex, CoordModeOrigin);
71
72			/* draw base */
73	pcg	1.8	XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
74	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
75
76			/* draw shadow on left */
77			pt[1].x = x + sz2 - 1;
78			pt[1].y = y + (dirn == UP ? 0 : sz - 1);
79	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
80	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
81	pcg	1.1
82			#if (SHADOW > 1)
83	pcg	1.6	/* doubled */
84			pt[0].x++;
85			if (dirn == UP)
86			{
87			pt[0].y--;
88			pt[1].y++;
89	pcg	1.1	}
90	pcg	1.6	else
91			{
92			pt[0].y++;
93			pt[1].y--;
94			}
95	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
96	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
97	pcg	1.1	#endif
98	pcg	1.6	/* draw shadow on right */
99			pt[1].x = x + sz - 1;
100			/* pt[2].x = x + sz2; */
101			pt[1].y = y + (dirn == UP ? sz - 1 : 0);
102			pt[2].y = y + (dirn == UP ? 0 : sz - 1);
103	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
104	pcg	1.6	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
105	pcg	1.1	#if (SHADOW > 1)
106	pcg	1.6	/* doubled */
107			pt[1].x--;
108			if (dirn == UP)
109			{
110			pt[2].y++;
111			pt[1].y--;
112	pcg	1.1	}
113	pcg	1.6	else
114			{
115			pt[2].y--;
116			pt[1].y++;
117			}
118	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
119	pcg	1.6	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
120	pcg	1.1	#endif
121			}
122
123			int
124	pcg	1.8	rxvt_term::scrollbar_show_rxvt (int update __attribute__ ((unused)), int last_top, int last_bot, int scrollbar_len)
125	pcg	1.1	{
126	pcg	1.6	int sbshadow = sb_shadow;
127			int sbwidth = (int)scrollBar.width;
128	pcg	1.1
129	pcg	1.6	if ((scrollBar.init & R_SB_RXVT) == 0)
130			{
131			XGCValues gcvalue;
132	pcg	1.1
133	pcg	1.6	scrollBar.init \|= R_SB_RXVT;
134			gcvalue.foreground = PixColors[Color_trough];
135			if (sbshadow)
136			{
137	pcg	1.8	XSetWindowBackground (display->display, scrollBar.win,
138	pcg	1.6	gcvalue.foreground);
139	pcg	1.8	XClearWindow (display->display, scrollBar.win);
140	pcg	1.6	}
141			}
142			else
143			{
144	pcg	1.7	/* instead of XClearWindow (display->display, scrollBar.win); */
145	pcg	1.6	if (last_top < scrollBar.top)
146	pcg	1.8	XClearArea (display->display, scrollBar.win,
147	pcg	1.6	sbshadow, last_top,
148			sbwidth, (scrollBar.top - last_top),
149			False);
150
151			if (scrollBar.bot < last_bot)
152	pcg	1.8	XClearArea (display->display, scrollBar.win,
153	pcg	1.6	sbshadow, scrollBar.bot,
154			sbwidth, (last_bot - scrollBar.bot),
155			False);
156	pcg	1.1	}
157
158	pcg	1.6	/* scrollbar slider */
159	pcg	1.1	#ifdef SB_BORDER
160	pcg	1.6	{
161			int xofs;
162	pcg	1.1
163	pcg	1.6	if (Options & Opt_scrollBar_right)
164			xofs = 0;
165			else
166			xofs = sbshadow ? sbwidth : sbwidth - 1;
167
168	pcg	1.8	XDrawLine (display->display, scrollBar.win, botShadowGC,
169	pcg	1.6	xofs, 0, xofs, scrollBar.end + sbwidth);
170			}
171			#endif
172	pcg	1.8	XFillRectangle (display->display, scrollBar.win, scrollbarGC,
173	pcg	1.6	sbshadow, scrollBar.top, sbwidth,
174			scrollbar_len);
175	pcg	1.1
176	pcg	1.6	if (sbshadow)
177			/* trough shadow */
178	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
179	pcg	1.6	botShadowGC, topShadowGC,
180			0, 0,
181	pcg	1.8	sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
182	pcg	1.6	scrollBar.end + (sbwidth + 1) + sbshadow);
183			/* shadow for scrollbar slider */
184	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
185	pcg	1.6	topShadowGC, botShadowGC,
186			sbshadow, scrollBar.top, sbwidth,
187			scrollbar_len);
188
189			/*
190			* Redraw scrollbar arrows
191			*/
192			Draw_button (sbshadow, sbshadow,
193	pcg	1.8	(scrollbar_isUp () ? -1 : +1), UP);
194	pcg	1.6	Draw_button (sbshadow, (scrollBar.end + 1),
195	pcg	1.8	(scrollbar_isDn () ? -1 : +1), DN);
196	pcg	1.6	return 1;
197	pcg	1.1	}
198			#endif /* RXVT_SCROLLBAR */
199			/----------------------- end-of-file (C source) -----------------------/