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authorroot <root>2014-05-22 18:54:32 +0000
committerroot <root>2014-05-22 18:54:32 +0000
commit8c0b328bbc429059a2b9462c9b5dcbbeb0d173e7 (patch)
tree62bb6b5e2df951b7ca51628c2caa6e5c698e00b5 /src/scrollbar-rxvt.C
parentfe72076284de7d79d15549fb36499bd5ee0f4ee8 (diff)
GPLv3
Diffstat (limited to 'src/scrollbar-rxvt.C')
-rw-r--r--src/scrollbar-rxvt.C222
1 files changed, 222 insertions, 0 deletions
diff --git a/src/scrollbar-rxvt.C b/src/scrollbar-rxvt.C
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+/*----------------------------------------------------------------------*
+ * 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) 2004-2006 Marc Lehmann <schmorp@schmorp.de>
+ *
+ * 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 3 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)
+
+static void
+draw_shadow (scrollBar_t *sb, int x, int y, int w, int h)
+{
+ int shadow;
+ Drawable d = sb->win;
+ Display *dpy = sb->term->dpy;
+
+ shadow = (w == 0 || h == 0) ? 1 : SHADOW_WIDTH;
+ w += x - 1;
+ h += y - 1;
+
+ for (; shadow-- > 0; x++, y++, w--, h--)
+ {
+ XDrawLine (dpy, d, sb->topShadowGC, x, y, w , y );
+ XDrawLine (dpy, d, sb->topShadowGC, x, y, x , h );
+ XDrawLine (dpy, d, sb->botShadowGC, w, h, w , y + 1);
+ XDrawLine (dpy, d, sb->botShadowGC, w, h, x + 1, h );
+ }
+}
+
+/* draw triangular button with a shadow of 2 pixels */
+static void
+draw_button (scrollBar_t *sb, int x, int y, int dirn)
+{
+ unsigned int sz, sz2;
+ XPoint pt[3];
+ GC top, bot;
+ Drawable d = sb->win;
+ Display *dpy = sb->term->dpy;
+
+ sz = sb->width;
+ sz2 = sz / 2;
+
+ if ((dirn == UP && sb->state == SB_STATE_UP)
+ || (dirn == DN && sb->state == SB_STATE_DOWN))
+ {
+ top = sb->botShadowGC;
+ bot = sb->topShadowGC;
+ }
+ else
+ {
+ top = sb->topShadowGC;
+ bot = sb->botShadowGC;
+ }
+
+ /* 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 (dpy, d, sb->scrollbarGC,
+ pt, 3, Convex, CoordModeOrigin);
+
+ /* draw base */
+ XDrawLine (dpy, d, (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 (dpy, d, top,
+ pt[0].x, pt[0].y, pt[1].x, pt[1].y);
+
+#if SHADOW_WIDTH > 1
+ /* doubled */
+ pt[0].x++;
+
+ if (dirn == UP)
+ {
+ pt[0].y--;
+ pt[1].y++;
+ }
+ else
+ {
+ pt[0].y++;
+ pt[1].y--;
+ }
+
+ XDrawLine (dpy, d, 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 (dpy, d, bot,
+ pt[2].x, pt[2].y, pt[1].x, pt[1].y);
+
+#if SHADOW_WIDTH > 1
+ /* doubled */
+ pt[1].x--;
+ if (dirn == UP)
+ {
+ pt[2].y++;
+ pt[1].y--;
+ }
+ else
+ {
+ pt[2].y--;
+ pt[1].y++;
+ }
+
+ XDrawLine (dpy, d, bot,
+ pt[2].x, pt[2].y, pt[1].x, pt[1].y);
+#endif
+}
+
+int
+scrollBar_t::show_rxvt (int update)
+{
+ int sbwidth = (int)width;
+
+ if ((init & SB_STYLE_RXVT) == 0)
+ {
+ XGCValues gcvalue;
+
+ init |= SB_STYLE_RXVT;
+
+ gcvalue.foreground = term->pix_colors[Color_topShadow];
+ topShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
+ gcvalue.foreground = term->pix_colors[Color_bottomShadow];
+ botShadowGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
+ gcvalue.foreground = term->pix_colors[ (term->depth <= 2 ? Color_fg : Color_scroll)];
+ scrollbarGC = XCreateGC (term->dpy, term->vt, GCForeground, &gcvalue);
+ }
+ else
+ {
+ if (update)
+ {
+ if (last_top < top)
+ XClearArea (term->dpy, win,
+ shadow, last_top,
+ sbwidth, (top - last_top),
+ False);
+
+ if (bot < last_bot)
+ XClearArea (term->dpy, win,
+ shadow, bot,
+ sbwidth, (last_bot - bot),
+ False);
+ }
+ else
+ XClearWindow (term->dpy, win);
+ }
+
+ /* scrollbar slider */
+#ifdef SB_BORDER
+ {
+ int xofs;
+
+ if (term->option (Opt_scrollBar_right))
+ xofs = 0;
+ else
+ xofs = shadow ? sbwidth : sbwidth - 1;
+
+ XDrawLine (term->dpy, win, botShadowGC,
+ xofs, 0, xofs, end + sbwidth);
+ }
+#endif
+
+ XFillRectangle (term->dpy, win, scrollbarGC,
+ shadow, top, sbwidth,
+ bot - top);
+
+ if (shadow)
+ /* trough shadow */
+ draw_shadow (this, 0, 0, sbwidth + 2 * shadow, end + (sbwidth + 1) + shadow);
+
+ /* shadow for scrollbar slider */
+ draw_shadow (this, shadow, top, sbwidth, bot - top);
+
+ /* Redraw scrollbar arrows */
+ draw_button (this, shadow, shadow, UP);
+ draw_button (this, shadow, end + 1, DN);
+
+ return 1;
+}
+#endif /* RXVT_SCROLLBAR */
+/*----------------------- end-of-file (C source) -----------------------*/
+