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Annotation of researchv9/X11/src/X.V11R1/clients/uwm/GridBox.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char *rcsid_StoreGridBox_c = "$Header: GridBox.c,v 1.3 87/09/11 08:21:55 toddb Exp $";
        !             3: #endif lint
        !             4: 
        !             5: #include <X11/copyright.h>
        !             6: 
        !             7: /*
        !             8:  * Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
        !             9:  *
        !            10:  *                         All Rights Reserved
        !            11:  *
        !            12:  * Permission to use, copy, modify, and distribute this software and its
        !            13:  * documentation for any purpose and without fee is hereby granted,
        !            14:  * provided that the above copyright notice appear in all copies and that
        !            15:  * both that copyright notice and this permission notice appear in
        !            16:  * supporting documentation, and that the name of Digital Equipment
        !            17:  * Corporation not be used in advertising or publicity pertaining to
        !            18:  * distribution of the software without specific, written prior permission.
        !            19:  *
        !            20:  *
        !            21:  * DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            22:  * ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            23:  * DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            24:  * ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            25:  * WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            26:  * ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            27:  * SOFTWARE.
        !            28:  */
        !            29: 
        !            30: 
        !            31: 
        !            32: /*
        !            33:  * MODIFICATION HISTORY
        !            34:  *
        !            35:  * 000 -- M. Gancarz, DEC Ultrix Engineering Group
        !            36:  * 001 -- Loretta Guarino Reid, DEC Ultrix Engineering Group,
        !            37:     Western Software Lab. Converted to X11.
        !            38:  */
        !            39: 
        !            40: #ifndef lint
        !            41: static char *sccsid = "@(#)StoreGridBox.c      3.8     1/24/86";
        !            42: #endif
        !            43: /*
        !            44:  *     StoreGridBox - This subroutine is used by the X Window Manager (xwm)
        !            45:  *     to store the vertices for the movement resize grid and box in a
        !            46:  *     vertex list.
        !            47:  */
        !            48: 
        !            49: #include "uwm.h"
        !            50: 
        !            51: /*
        !            52:  * Store the vertices for the movement resize grid and box in a vertex list.
        !            53:  */
        !            54: int StoreGridBox(box, ulx, uly, lrx, lry)
        !            55: register XSegment box[];
        !            56: int ulx;                       /* Upper left X coordinate. */
        !            57: int uly;                       /* Upper left Y coordinate. */
        !            58: int lrx;                       /* Lower right X coordinate. */
        !            59: int lry;                       /* Lower right Y coordinate. */
        !            60: {
        !            61:     register int xthird, ythird;
        !            62:     int x1third, y1third;
        !            63:     int x2third, y2third;
        !            64: 
        !            65:     /*
        !            66:      * Xor in.
        !            67:      */
        !            68:     box[0].x1 = ulx; box[0].y1 = uly;
        !            69:     box[0].x2 = lrx; box[0].y2 = uly;
        !            70: 
        !            71:     box[1].x1 = lrx; box[1].y1 = uly;
        !            72:     box[1].x2 = lrx; box[1].y2 = lry;
        !            73: 
        !            74:     box[2].x1 = lrx; box[2].y1 = lry;
        !            75:     box[2].x2 = ulx; box[2].y2 = lry;
        !            76: 
        !            77:     box[3].x1 = ulx; box[3].y1 = lry;
        !            78:     box[3].x2 = ulx; box[3].y2 = uly;
        !            79: 
        !            80: 
        !            81:     /*
        !            82:      * These are the X and Y calculations for the parts of the grid that
        !            83:      * are dependent on the division by 3 calculations.
        !            84:      */
        !            85: 
        !            86:     /*
        !            87:      * Y dimension third.
        !            88:      */
        !            89:     ythird = (lry - uly) / 3;
        !            90:     y1third = uly + ythird;
        !            91:     y2third = y1third + ythird;
        !            92:    
        !            93:     /*
        !            94:      * X dimension third.
        !            95:      */
        !            96:     xthird = (lrx - ulx) / 3;
        !            97:     x1third = ulx + xthird;
        !            98:     x2third = x1third + xthird;
        !            99: 
        !           100:     box[4].x1 = x1third; box[4].y1 = lry;
        !           101:     box[4].x2 = x1third; box[4].y2 = uly;
        !           102: 
        !           103:     box[5].x1 = x2third; box[5].y1 = lry;
        !           104:     box[5].x2 = x2third; box[5].y2 = uly;
        !           105: 
        !           106:     box[6].x1 = ulx; box[6].y1 = y1third;
        !           107:     box[6].x2 = lrx; box[6].y2 = y1third;
        !           108: 
        !           109:     box[7].x1 = ulx; box[7].y1 = y2third;
        !           110:     box[7].x2 = lrx; box[7].y2 = y2third;
        !           111: 
        !           112:     /*
        !           113:      * Do not erase if we're freezing the screen.
        !           114:      */
        !           115:     if (Freeze)
        !           116:         return(8);
        !           117: 
        !           118:     /*
        !           119:      * From here on we're retracing the segments to clear the
        !           120:      * grid using GXxor.
        !           121:      */
        !           122:     box[8].x1 = ulx; box[8].y1 = uly;
        !           123:     box[8].x2 = lrx; box[8].y2 = uly;
        !           124: 
        !           125:     box[9].x1 = lrx; box[9].y1 = uly;
        !           126:     box[9].x2 = lrx; box[9].y2 = lry;
        !           127: 
        !           128:     box[10].x1 = lrx; box[10].y1 = lry;
        !           129:     box[10].x2 = ulx; box[10].y2 = lry;
        !           130: 
        !           131:     box[11].x1 = ulx; box[11].y1 = lry;
        !           132:     box[11].x2 = ulx; box[11].y2 = uly;
        !           133: 
        !           134:     box[12].x1 = x1third; box[12].y1 = lry;
        !           135:     box[12].x2 = x1third; box[12].y2 = uly;
        !           136: 
        !           137:     box[13].x1 = x2third; box[13].y1 = lry;
        !           138:     box[13].x2 = x2third; box[13].y2 = uly;
        !           139: 
        !           140:     box[14].x1 = ulx; box[14].y1 = y1third;
        !           141:     box[14].x2 = lrx; box[14].y2 = y1third;
        !           142: 
        !           143:     box[15].x1 = ulx; box[15].y1 = y2third;
        !           144:     box[15].x2 = lrx; box[15].y2 = y2third;
        !           145: 
        !           146: 
        !           147:     /*
        !           148:      * Total number of segments is 16.
        !           149:      */
        !           150:     return(16);
        !           151: }

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