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Diffstat (limited to 'src/lib/XShade.c.pamphlet')
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diff --git a/src/lib/XShade.c.pamphlet b/src/lib/XShade.c.pamphlet new file mode 100644 index 00000000..8435b2dd --- /dev/null +++ b/src/lib/XShade.c.pamphlet @@ -0,0 +1,236 @@ +\documentclass{article} +\usepackage{axiom} +\begin{document} +\title{\$SPAD/src/lib XShade.c} +\author{The Axiom Team} +\maketitle +\begin{abstract} +\end{abstract} +\eject +\tableofcontents +\eject +\section{License} +<<license>>= +/* +Copyright (c) 1991-2002, The Numerical ALgorithms Group Ltd. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are +met: + + - Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + + - Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in + the documentation and/or other materials provided with the + distribution. + + - Neither the name of The Numerical ALgorithms Group Ltd. nor the + names of its contributors may be used to endorse or promote products + derived from this software without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS +IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER +OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, +EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR +PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF +LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING +NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS +SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*/ +@ +<<*>>= +<<license>> + +#include "axiom-c-macros.h" +#ifndef MSYSplatform + +#include <stdio.h> +#if !defined(BSDplatform) +#include <malloc.h> +#endif +#include <stdlib.h> + +#include <X11/Xlib.h> +#include <X11/Xutil.h> +#include <X11/Xos.h> +#include <X11/Intrinsic.h> +#include <X11/StringDefs.h> +#include <X11/cursorfont.h> + +#define XShadeWidth 4 +#define XShadeMax 17 + +char XShadeBits[] = { + 0x00, 0x00, 0x00, 0x00, + 0x01, 0x00, 0x00, 0x00, + 0x01, 0x00, 0x04, 0x00, + 0x05, 0x00, 0x04, 0x00, + 0x05, 0x00, 0x05, 0x00, + 0x05, 0x02, 0x05, 0x00, + 0x05, 0x02, 0x05, 0x08, + 0x05, 0x0a, 0x05, 0x08, + 0x05, 0x0a, 0x05, 0x0a, + 0x07, 0x0a, 0x05, 0x0a, + 0x07, 0x0a, 0x0d, 0x0a, + 0x0f, 0x0a, 0x0d, 0x0a, + 0x0f, 0x0a, 0x0f, 0x0a, + 0x0f, 0x0b, 0x0f, 0x0a, + 0x0f, 0x0b, 0x0f, 0x0e, + 0x0f, 0x0f, 0x0f, 0x0e, + 0x0f, 0x0f, 0x0f, 0x0f}; + +#include "XShade.H1" + +Pixmap XShade[XShadeMax]; +GC TileGC; +unsigned int INIT = 1; + +/* + * This routine has the function of returning the number of characters needed + * to store a bitmap. It first calculates the number of bits needed per line. + * Then it finds the closest multiple of 8 which is bigger than the number of + * bits. Once that is done, it multiplies this number by the number of bits + * high the bitmap is. + */ +int +char_bitmap(void) +{ + int bits_line; + int total_chars; + + for (bits_line = 8, total_chars = 1; bits_line < XShadeWidth; total_chars++) + bits_line += 8; + + total_chars = total_chars * XShadeWidth; + + return total_chars; +} + +int +XInitShades(Display *display, int screen) +{ + char *bits; + int count; + int chars_bitmap = char_bitmap(); + int bit; + + bits = (char *) malloc(chars_bitmap * sizeof(char)); + + for (count = 0; count < XShadeMax; count++) { + + /* Load in the next bitmap */ + + for (bit = 0; bit < chars_bitmap; bit++) + bits[bit] = XShadeBits[count * chars_bitmap + bit]; + + /* Create it and put it into the Pixmap array */ + + XShade[count] = XCreatePixmapFromBitmapData(display, + RootWindow(display, screen), + bits, + XShadeWidth, XShadeWidth, + BlackPixel(display, screen), + WhitePixel(display, screen), + DisplayPlanes(display, screen)); + } + TileGC = XCreateGC(display, RootWindow(display, screen), 0, NULL); + XSetFillStyle(display, TileGC, FillTiled); + XSetTile(display, TileGC, XShade[XShadeMax / 2]); + return XShadeMax; +} + + +int +XChangeShade(Display *display, int shade) +{ + if (shade >= XShadeMax || shade < 0) { + fprintf(stderr, "Shade %d, out of range\n",shade); + return (-1); + } + XSetTile(display, TileGC, XShade[shade]); + return (1); +} + +int +XQueryShades(unsigned int *shades) +{ + *shades = XShadeMax; + return 1; +} + + +void +XShadeRectangle(Display *display, Drawable drawable, int x,int y, + unsigned int width, unsigned int height) +{ + if (!INIT) { + fprintf(stderr, "XShade Error: Tried to fill before INIT called\n"); + exit(-1); + } + XFillRectangle(display, drawable, TileGC, x, y, width, height); +} + + +void +XShadeRectangles(Display *display, Drawable drawable, + XRectangle *rectangles, int nrectangles) +{ + if (!INIT) { + fprintf(stderr, "XShade Error: Tried to fill before INIT called\n"); + exit(-1); + } + XFillRectangles(display, drawable, TileGC, + rectangles, nrectangles); +} + + +void +XShadePolygon(Display *display, Drawable drawable, XPoint * points, + int npoints, int shape, int mode) +{ + if (!INIT) { + fprintf(stderr, "XShade Error: Tried to fill before INIT called\n"); + exit(-1); + } + + XFillPolygon(display, drawable, TileGC, + points, npoints, shape, mode); +} + +void +XShadeArc(Display *display, Drawable drawable, int x, int y, + unsigned int width, unsigned int height, int angle1, int angle2) +{ + if (!INIT) { + fprintf(stderr, "XShade Error: Tried to fill before INIT called\n"); + exit(-1); + } + XFillArc(display, drawable, TileGC, x, y, width, + height, angle1, angle2); +} + + +void +XShadeArcs(Display *display, Drawable drawable, XArc *arcs, int narcs) +{ + if (!INIT) { + fprintf(stderr, "XShade Error: Tried to fill before INIT called\n"); + exit(-1); + } + XFillArcs(display, drawable, TileGC, arcs, narcs); +} + +#endif /* MSYSplatform */ + +@ +\eject +\begin{thebibliography}{99} +\bibitem{1} nothing +\end{thebibliography} +\end{document} |