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 */

/*----------------------------------------------------------------------*/
#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, 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)
    {
      scrollBar.init |= R_SB_RXVT;
      if (sbshadow)
        {
          XSetWindowBackground (display->display, scrollBar.win, pix_colors_focused[Color_trough]);
          XClearWindow (display->display, scrollBar.win);
        }
    }
  else
    {
      if (update)
        {
          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);
        }
      else
        XClearWindow (display->display, scrollBar.win);
    }

  /* 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:	1.16
Committed:	Mon Aug 23 19:57:33 2004 UTC (19 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
CVS Tags:	rel-4_8, rel-4_9, rel-4_4, rel-4_6, rel-4_7, rel-4_0, rel-4_1, rel-4_2, rel-4_3, rel-3_8
Changes since 1.13:	+20 -16 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
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	root	1.10
70	pcg	1.8	XFillPolygon (display->display, scrollBar.win, scrollbarGC,
71	root	1.10	pt, 3, Convex, CoordModeOrigin);
72	pcg	1.6
73			/* draw base */
74	pcg	1.8	XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
75	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
76	pcg	1.6
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	root	1.10	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	root	1.10	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	root	1.10	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	root	1.10
120	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
121	root	1.10	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
122	pcg	1.1	#endif
123			}
124
125			int
126	root	1.16	rxvt_term::scrollbar_show_rxvt (int update, int last_top, int last_bot, int scrollbar_len)
127	pcg	1.1	{
128	root	1.16	int sbshadow = sb_shadow;
129			int sbwidth = (int)scrollBar.width;
130	pcg	1.1
131	pcg	1.6	if ((scrollBar.init & R_SB_RXVT) == 0)
132			{
133			scrollBar.init \|= R_SB_RXVT;
134			if (sbshadow)
135			{
136	root	1.16	XSetWindowBackground (display->display, scrollBar.win, pix_colors_focused[Color_trough]);
137	pcg	1.8	XClearWindow (display->display, scrollBar.win);
138	pcg	1.6	}
139			}
140			else
141			{
142	root	1.16	if (update)
143			{
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			else
157			XClearWindow (display->display, scrollBar.win);
158	pcg	1.1	}
159
160	pcg	1.6	/* scrollbar slider */
161	pcg	1.1	#ifdef SB_BORDER
162	pcg	1.6	{
163	root	1.10	int xofs;
164	pcg	1.1
165	root	1.13	if (options & Opt_scrollBar_right)
166	pcg	1.6	xofs = 0;
167			else
168			xofs = sbshadow ? sbwidth : sbwidth - 1;
169
170	pcg	1.8	XDrawLine (display->display, scrollBar.win, botShadowGC,
171	root	1.10	xofs, 0, xofs, scrollBar.end + sbwidth);
172	pcg	1.6	}
173			#endif
174	root	1.10
175	pcg	1.8	XFillRectangle (display->display, scrollBar.win, scrollbarGC,
176	root	1.10	sbshadow, scrollBar.top, sbwidth,
177			scrollbar_len);
178	pcg	1.1
179	pcg	1.6	if (sbshadow)
180			/* trough shadow */
181	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
182	pcg	1.6	botShadowGC, topShadowGC,
183			0, 0,
184	pcg	1.8	sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
185	pcg	1.6	scrollBar.end + (sbwidth + 1) + sbshadow);
186	root	1.10
187	pcg	1.6	/* shadow for scrollbar slider */
188	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
189	pcg	1.6	topShadowGC, botShadowGC,
190			sbshadow, scrollBar.top, sbwidth,
191			scrollbar_len);
192
193	root	1.10	/* Redraw scrollbar arrows */
194			Draw_button (sbshadow, sbshadow, (scrollbar_isUp () ? -1 : +1), UP);
195			Draw_button (sbshadow, scrollBar.end + 1, (scrollbar_isDn () ? -1 : +1), DN);
196
197	pcg	1.6	return 1;
198	pcg	1.1	}
199			#endif /* RXVT_SCROLLBAR */
200			/----------------------- end-of-file (C source) -----------------------/