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)

#define DOUBLED 1

/* draw triangular button with a shadow of 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 DOUBLED
  /* 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 DOUBLED
  /* 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 (OPTION (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:	1.21
Committed:	Mon Jan 16 15:12:48 2006 UTC (18 years, 4 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.20:	+6 -3 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	root	1.21	#define DOUBLED 1
31
32			/* draw triangular button with a shadow of 2 pixels */
33	pcg	1.1	void
34	pcg	1.4	rxvt_term::Draw_button (int x, int y, int state, int dirn)
35	pcg	1.1	{
36	pcg	1.6	unsigned int sz, sz2;
37			XPoint pt[3];
38			GC top, bot;
39
40			sz = scrollBar.width;
41			sz2 = sz / 2;
42			switch (state)
43			{
44			case +1:
45			top = topShadowGC;
46			bot = botShadowGC;
47			break;
48			case -1:
49			top = botShadowGC;
50			bot = topShadowGC;
51			break;
52			default:
53			top = bot = scrollbarGC;
54			break;
55			}
56
57			/* fill triangle */
58			pt[0].x = x;
59			pt[1].x = x + sz - 1;
60			pt[2].x = x + sz2;
61			if (dirn == UP)
62			{
63			pt[0].y = pt[1].y = y + sz - 1;
64			pt[2].y = y;
65			}
66			else
67			{
68			pt[0].y = pt[1].y = y;
69			pt[2].y = y + sz - 1;
70			}
71	root	1.10
72	pcg	1.8	XFillPolygon (display->display, scrollBar.win, scrollbarGC,
73	root	1.10	pt, 3, Convex, CoordModeOrigin);
74	pcg	1.6
75			/* draw base */
76	pcg	1.8	XDrawLine (display->display, scrollBar.win, (dirn == UP ? bot : top),
77	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
78	pcg	1.6
79			/* draw shadow on left */
80			pt[1].x = x + sz2 - 1;
81			pt[1].y = y + (dirn == UP ? 0 : sz - 1);
82	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
83	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
84	pcg	1.1
85	root	1.21	#if DOUBLED
86	pcg	1.6	/* doubled */
87			pt[0].x++;
88	root	1.17
89	pcg	1.6	if (dirn == UP)
90			{
91			pt[0].y--;
92			pt[1].y++;
93	pcg	1.1	}
94	pcg	1.6	else
95			{
96			pt[0].y++;
97			pt[1].y--;
98			}
99	root	1.17
100	pcg	1.8	XDrawLine (display->display, scrollBar.win, top,
101	root	1.10	pt[0].x, pt[0].y, pt[1].x, pt[1].y);
102	pcg	1.1	#endif
103	root	1.21
104	pcg	1.6	/* draw shadow on right */
105			pt[1].x = x + sz - 1;
106			/* pt[2].x = x + sz2; */
107			pt[1].y = y + (dirn == UP ? sz - 1 : 0);
108			pt[2].y = y + (dirn == UP ? 0 : sz - 1);
109	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
110	root	1.10	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
111	root	1.17
112	root	1.21	#if DOUBLED
113	pcg	1.6	/* doubled */
114			pt[1].x--;
115			if (dirn == UP)
116			{
117			pt[2].y++;
118			pt[1].y--;
119	pcg	1.1	}
120	pcg	1.6	else
121			{
122			pt[2].y--;
123			pt[1].y++;
124			}
125	root	1.10
126	pcg	1.8	XDrawLine (display->display, scrollBar.win, bot,
127	root	1.10	pt[2].x, pt[2].y, pt[1].x, pt[1].y);
128	pcg	1.1	#endif
129			}
130
131			int
132	root	1.16	rxvt_term::scrollbar_show_rxvt (int update, int last_top, int last_bot, int scrollbar_len)
133	pcg	1.1	{
134	root	1.16	int sbshadow = sb_shadow;
135			int sbwidth = (int)scrollBar.width;
136	pcg	1.1
137	pcg	1.6	if ((scrollBar.init & R_SB_RXVT) == 0)
138			{
139			scrollBar.init \|= R_SB_RXVT;
140	root	1.18
141	pcg	1.6	if (sbshadow)
142			{
143	root	1.16	XSetWindowBackground (display->display, scrollBar.win, pix_colors_focused[Color_trough]);
144	pcg	1.8	XClearWindow (display->display, scrollBar.win);
145	pcg	1.6	}
146			}
147			else
148			{
149	root	1.16	if (update)
150			{
151			if (last_top < scrollBar.top)
152			XClearArea (display->display, scrollBar.win,
153			sbshadow, last_top,
154			sbwidth, (scrollBar.top - last_top),
155			False);
156
157			if (scrollBar.bot < last_bot)
158			XClearArea (display->display, scrollBar.win,
159			sbshadow, scrollBar.bot,
160			sbwidth, (last_bot - scrollBar.bot),
161			False);
162			}
163			else
164			XClearWindow (display->display, scrollBar.win);
165	pcg	1.1	}
166
167	pcg	1.6	/* scrollbar slider */
168	pcg	1.1	#ifdef SB_BORDER
169	pcg	1.6	{
170	root	1.10	int xofs;
171	pcg	1.1
172	root	1.19	if (OPTION (Opt_scrollBar_right))
173	pcg	1.6	xofs = 0;
174			else
175			xofs = sbshadow ? sbwidth : sbwidth - 1;
176
177	pcg	1.8	XDrawLine (display->display, scrollBar.win, botShadowGC,
178	root	1.10	xofs, 0, xofs, scrollBar.end + sbwidth);
179	pcg	1.6	}
180			#endif
181	root	1.10
182	pcg	1.8	XFillRectangle (display->display, scrollBar.win, scrollbarGC,
183	root	1.10	sbshadow, scrollBar.top, sbwidth,
184			scrollbar_len);
185	pcg	1.1
186	pcg	1.6	if (sbshadow)
187			/* trough shadow */
188	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
189	pcg	1.6	botShadowGC, topShadowGC,
190			0, 0,
191	pcg	1.8	sbwidth + 2 * sbshadow, /* scrollbar_TotalWidth () */
192	pcg	1.6	scrollBar.end + (sbwidth + 1) + sbshadow);
193	root	1.10
194	pcg	1.6	/* shadow for scrollbar slider */
195	pcg	1.8	rxvt_Draw_Shadow (display->display, scrollBar.win,
196	pcg	1.6	topShadowGC, botShadowGC,
197			sbshadow, scrollBar.top, sbwidth,
198			scrollbar_len);
199
200	root	1.10	/* Redraw scrollbar arrows */
201			Draw_button (sbshadow, sbshadow, (scrollbar_isUp () ? -1 : +1), UP);
202			Draw_button (sbshadow, scrollBar.end + 1, (scrollbar_isDn () ? -1 : +1), DN);
203
204	pcg	1.6	return 1;
205	pcg	1.1	}
206			#endif /* RXVT_SCROLLBAR */
207			/----------------------- end-of-file (C source) -----------------------/
208	root	1.18