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Annotation of 43BSDTahoe/new/X/uwm/Push.c, revision 1.1

1.1     ! root        1: #ifndef lint
        !             2: static char *rcsid_Push_c = "$Header: Push.c,v 10.4 86/11/19 16:24:23 jg Rel $";
        !             3: #endif lint
        !             4: 
        !             5: /*
        !             6:  *                     COPYRIGHT 1985, 1986
        !             7:  *                DIGITAL EQUIPMENT CORPORATION
        !             8:  *                    MAYNARD, MASSACHUSETTS
        !             9:  *                     ALL RIGHTS RESERVED.
        !            10:  *
        !            11:  * THE INFORMATION IN THIS SOFTWARE IS SUBJECT TO CHANGE WITHOUT NOTICE AND
        !            12:  * SHOULD NOT BE CONSTRUED AS A COMMITMENT BY DIGITAL EQUIPMENT CORPORATION.
        !            13:  * DIGITAL MAKES NO REPRESENTATIONS ABOUT THE SUITIBILITY OF THIS SOFTWARE FOR
        !            14:  * ANY PURPOSE.  IT IS SUPPLIED "AS IS" WITHOUT EXPRESS OR IMPLIED WARRANTY.
        !            15:  *
        !            16:  * IF THE SOFTWARE IS MODIFIED IN A MANNER CREATING DERIVATIVE COPYRIGHT RIGHTS,
        !            17:  * APPROPRIATE LEGENDS MAY BE PLACED ON THE DERIVATIVE WORK IN ADDITION TO THAT
        !            18:  * SET FORTH ABOVE.
        !            19:  *
        !            20:  *
        !            21:  * Permission to use, copy, modify, and distribute this software and its
        !            22:  * documentation for any purpose and without fee is hereby granted, provided
        !            23:  * that the above copyright notice appear in all copies and that both that
        !            24:  * copyright notice and this permission notice appear in supporting documentation,
        !            25:  * and that the name of Digital Equipment Corporation not be used in advertising
        !            26:  * or publicity pertaining to distribution of the software without specific, 
        !            27:  * written prior permission.
        !            28:  *
        !            29:  */
        !            30: 
        !            31: 
        !            32: /*
        !            33:  * MODIFICATION HISTORY
        !            34:  *
        !            35:  * 000 -- M. Gancarz, DEC Ultrix Engineering Group
        !            36:  */
        !            37: 
        !            38: #ifndef lint
        !            39: static char *sccsid = "@(#)Push.c      3.8     1/24/86";
        !            40: #endif
        !            41: 
        !            42: #include "uwm.h"
        !            43: 
        !            44: #define PUSH_DOWN      1
        !            45: #define PUSH_UP                2
        !            46: #define PUSH_LEFT      3
        !            47: #define PUSH_RIGHT     4
        !            48: 
        !            49: extern Bool PushAll();
        !            50: 
        !            51: Bool PushDown(window, mask, button, x, y)
        !            52: Window window;                         /* Event window. */
        !            53: int mask;                              /* Button/key mask. */
        !            54: short button;                          /* Button event detail. */
        !            55: int x, y;                              /* Event mouse position. */
        !            56: {
        !            57:     return(PushAll(window, PUSH_DOWN));
        !            58: }
        !            59: 
        !            60: Bool PushUp(window, mask, button, x, y)
        !            61: Window window;                         /* Event window. */
        !            62: int mask;                              /* Button/key mask. */
        !            63: short button;                          /* Button event detail. */
        !            64: int x, y;                              /* Event mouse position. */
        !            65: {
        !            66:     return(PushAll(window, PUSH_UP));
        !            67: }
        !            68: 
        !            69: Bool PushLeft(window, mask, button, x, y)
        !            70: Window window;                         /* Event window. */
        !            71: int mask;                              /* Button/key mask. */
        !            72: short button;                          /* Button event detail. */
        !            73: int x, y;                              /* Event mouse position. */
        !            74: {
        !            75:     return(PushAll(window, PUSH_LEFT));
        !            76: }
        !            77: 
        !            78: Bool PushRight(window, mask, button, x, y)
        !            79: Window window;                         /* Event window. */
        !            80: int mask;                              /* Button/key mask. */
        !            81: short button;                          /* Button event detail. */
        !            82: int x, y;                              /* Event mouse position. */
        !            83: {
        !            84:     return(PushAll(window, PUSH_RIGHT));
        !            85: }
        !            86: 
        !            87: Bool PushAll(w, direction)
        !            88: Window w;
        !            89: int direction;
        !            90: {
        !            91:     WindowInfo winfo;                  /* Event window information. */
        !            92:     WindowInfo rinfo;                  /* Root window information. */
        !            93:     int xofs, yofs;                    /* Movement offsets. */
        !            94:     int x, y;                          /* New window position. */
        !            95: 
        !            96:     /*
        !            97:      * Do not try to move the root window.
        !            98:      */
        !            99:     if (w == RootWindow)
        !           100:         return(FALSE);
        !           101: 
        !           102:     /*
        !           103:      * Gather info on the event window.
        !           104:      */
        !           105:     status = XQueryWindow(w, &winfo);
        !           106:     if (status == FAILURE) return(FALSE);
        !           107: 
        !           108:     /*
        !           109:      * Calculate the movement offsets.
        !           110:      */
        !           111:     switch(direction) {
        !           112:     case PUSH_DOWN:
        !           113:         xofs = 0;
        !           114:         yofs = Push ? (winfo.height / Pushval) : Pushval;
        !           115:         break;
        !           116:     case PUSH_UP:
        !           117:         xofs = 0;
        !           118:         yofs = 0 - (Push ? (winfo.height / Pushval) : Pushval);
        !           119:         break;
        !           120:     case PUSH_LEFT:
        !           121:         xofs = 0 - (Push ? (winfo.width / Pushval) : Pushval);
        !           122:         yofs = 0;
        !           123:         break;
        !           124:     case PUSH_RIGHT:
        !           125:         xofs = Push ? (winfo.width / Pushval) : Pushval;
        !           126:         yofs = 0;
        !           127:         break;
        !           128:     }
        !           129: 
        !           130:     /*
        !           131:      * Calculate the new window position.
        !           132:      */
        !           133:     x = winfo.x + xofs;
        !           134:     y = winfo.y + yofs;
        !           135: 
        !           136:     /*
        !           137:      * Normalize the new window coordinates so we don't
        !           138:      * lose the window off the edge of the screen.
        !           139:      */
        !           140:     if (x < (0 - winfo.width + CURSOR_WIDTH - (winfo.bdrwidth << 1)))
        !           141:         x = 0 - winfo.width + CURSOR_WIDTH - (winfo.bdrwidth << 1);
        !           142:     if (y < (0 - winfo.height + CURSOR_HEIGHT - (winfo.bdrwidth << 1)))
        !           143:         y = 0 - winfo.height + CURSOR_HEIGHT - (winfo.bdrwidth << 1);
        !           144:     if (x > (ScreenWidth - CURSOR_WIDTH))
        !           145:         x = ScreenWidth - CURSOR_WIDTH;
        !           146:     if (y > (ScreenHeight - CURSOR_HEIGHT))
        !           147:         y = ScreenHeight - CURSOR_HEIGHT;
        !           148: 
        !           149:     /*
        !           150:      * Move the window into place.
        !           151:      */
        !           152:     XMoveWindow(w, x, y);
        !           153: 
        !           154:     return(FALSE);
        !           155: }

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