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>
 * Copyright (c) 2004      Marc Lehmann <pcg@goof.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:	1.9
Committed:	Thu Apr 8 20:31:45 2004 UTC (20 years, 1 month ago) by pcg
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-2_8, rel-3_0
Changes since 1.8:	+2 -1 lines
Log Message:	* empty log message *
#	User	Rev	Content
1	pcg	1.1	/---------------------------------C----------------------------------
2	pcg	1.9	* File: scrollbar-rxvt.C
3	pcg	1.1	----------------------------------------------------------------------
4			*
5			* Copyright (c) 1997,1998 mj olesen <olesen@me.QueensU.CA>
6			* Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com>
7	pcg	1.9	* Copyright (c) 2004 Marc Lehmann <pcg@goof.com>
8	pcg	1.1	*
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	pcg	1.4	rxvt_term::Draw_button (int x, int y, int state, int dirn)
34	pcg	1.1	{
35	pcg	1.6	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	pcg	1.8	XFillPolygon (display->display, scrollBar.win, scrollbarGC,
71	pcg	1.6	pt, 3, Convex, CoordModeOrigin);
72
73			/* draw base */
74	pcg	1.8	XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
75	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
76
77			/* draw shadow on left */
78			pt[1].x = x + sz2 - 1;
79			pt[1].y = y + (dirn == UP ? 0 : sz - 1);
80	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
81	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
82	pcg	1.1
83			#if (SHADOW > 1)
84	pcg	1.6	/* doubled */
85			pt[0].x++;
86			if (dirn == UP)
87			{
88			pt[0].y--;
89			pt[1].y++;
90	pcg	1.1	}
91	pcg	1.6	else
92			{
93			pt[0].y++;
94			pt[1].y--;
95			}
96	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
97	pcg	1.6	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
98	pcg	1.1	#endif
99	pcg	1.6	/* draw shadow on right */
100			pt[1].x = x + sz - 1;
101			/* pt[2].x = x + sz2; */
102			pt[1].y = y + (dirn == UP ? sz - 1 : 0);
103			pt[2].y = y + (dirn == UP ? 0 : sz - 1);
104	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
105	pcg	1.6	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
106	pcg	1.1	#if (SHADOW > 1)
107	pcg	1.6	/* doubled */
108			pt[1].x--;
109			if (dirn == UP)
110			{
111			pt[2].y++;
112			pt[1].y--;
113	pcg	1.1	}
114	pcg	1.6	else
115			{
116			pt[2].y--;
117			pt[1].y++;
118			}
119	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
120	pcg	1.6	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
121	pcg	1.1	#endif
122			}
123
124			int
125	pcg	1.8	rxvt_term::scrollbar_show_rxvt (int update __attribute__ ((unused)), int last_top, int last_bot, int scrollbar_len)
126	pcg	1.1	{
127	pcg	1.6	int sbshadow = sb_shadow;
128			int sbwidth = (int)scrollBar.width;
129	pcg	1.1
130	pcg	1.6	if ((scrollBar.init & R_SB_RXVT) == 0)
131			{
132			XGCValues gcvalue;
133	pcg	1.1
134	pcg	1.6	scrollBar.init \|= R_SB_RXVT;
135			gcvalue.foreground = PixColors[Color_trough];
136			if (sbshadow)
137			{
138	pcg	1.8	XSetWindowBackground (display->display, scrollBar.win,
139	pcg	1.6	gcvalue.foreground);
140	pcg	1.8	XClearWindow (display->display, scrollBar.win);
141	pcg	1.6	}
142			}
143			else
144			{
145	pcg	1.7	/* instead of XClearWindow (display->display, scrollBar.win); */
146	pcg	1.6	if (last_top < scrollBar.top)
147	pcg	1.8	XClearArea (display->display, scrollBar.win,
148	pcg	1.6	sbshadow, last_top,
149			sbwidth, (scrollBar.top - last_top),
150			False);
151
152			if (scrollBar.bot < last_bot)
153	pcg	1.8	XClearArea (display->display, scrollBar.win,
154	pcg	1.6	sbshadow, scrollBar.bot,
155			sbwidth, (last_bot - scrollBar.bot),
156			False);
157	pcg	1.1	}
158
159	pcg	1.6	/* scrollbar slider */
160	pcg	1.1	#ifdef SB_BORDER
161	pcg	1.6	{
162			int xofs;
163	pcg	1.1
164	pcg	1.6	if (Options & Opt_scrollBar_right)
165			xofs = 0;
166			else
167			xofs = sbshadow ? sbwidth : sbwidth - 1;
168
169	pcg	1.8	XDrawLine (display->display, scrollBar.win, botShadowGC,
170	pcg	1.6	xofs, 0, xofs, scrollBar.end + sbwidth);
171			}
172			#endif
173	pcg	1.8	XFillRectangle (display->display, scrollBar.win, scrollbarGC,
174	pcg	1.6	sbshadow, scrollBar.top, sbwidth,
175			scrollbar_len);
176	pcg	1.1
177	pcg	1.6	if (sbshadow)
178			/* trough shadow */
179	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
180	pcg	1.6	botShadowGC, topShadowGC,
181			0, 0,
182	pcg	1.8	sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
183	pcg	1.6	scrollBar.end + (sbwidth + 1) + sbshadow);
184			/* shadow for scrollbar slider */
185	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
186	pcg	1.6	topShadowGC, botShadowGC,
187			sbshadow, scrollBar.top, sbwidth,
188			scrollbar_len);
189
190			/*
191			* Redraw scrollbar arrows
192			*/
193			Draw_button (sbshadow, sbshadow,
194	pcg	1.8	(scrollbar_isUp () ? -1 : +1), UP);
195	pcg	1.6	Draw_button (sbshadow, (scrollBar.end + 1),
196	pcg	1.8	(scrollbar_isDn () ? -1 : +1), DN);
197	pcg	1.6	return 1;
198	pcg	1.1	}
199			#endif /* RXVT_SCROLLBAR */
200			/----------------------- end-of-file (C source) -----------------------/