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      1 
      2 /***********************************************************
      3 
      4 Copyright 1987, 1998  The Open Group
      5 
      6 Permission to use, copy, modify, distribute, and sell this software and its
      7 documentation for any purpose is hereby granted without fee, provided that
      8 the above copyright notice appear in all copies and that both that
      9 copyright notice and this permission notice appear in supporting
     10 documentation.
     11 
     12 The above copyright notice and this permission notice shall be included in
     13 all copies or substantial portions of the Software.
     14 
     15 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     18 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     19 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
     20 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     21 
     22 Except as contained in this notice, the name of The Open Group shall not be
     23 used in advertising or otherwise to promote the sale, use or other dealings
     24 in this Software without prior written authorization from The Open Group.
     25 
     26 
     27 Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
     28 
     29                         All Rights Reserved
     30 
     31 Permission to use, copy, modify, and distribute this software and its
     32 documentation for any purpose and without fee is hereby granted,
     33 provided that the above copyright notice appear in all copies and that
     34 both that copyright notice and this permission notice appear in
     35 supporting documentation, and that the name of Digital not be
     36 used in advertising or publicity pertaining to distribution of the
     37 software without specific, written prior permission.
     38 
     39 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
     40 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
     41 DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
     42 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
     43 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
     44 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
     45 SOFTWARE.
     46 
     47 ******************************************************************/
     48 
     49 #ifdef HAVE_CONFIG_H
     50 #include <config.h>
     51 #endif
     52 #include <X11/Xlibint.h>
     53 #include <X11/Xos.h>
     54 #include <X11/Xutil.h>
     55 #include "Xatomtype.h"
     56 #include <X11/Xatom.h>
     57 #include <stdio.h>
     58 
     59 Status XGetSizeHints (
     60 	Display *dpy,
     61 	Window w,
     62 	XSizeHints *hints,
     63         Atom property)
     64 {
     65 	xPropSizeHints *prop = NULL;
     66         Atom actual_type;
     67         int actual_format;
     68         unsigned long leftover;
     69         unsigned long nitems;
     70 	if (XGetWindowProperty(dpy, w, property, 0L,
     71 			       (long) OldNumPropSizeElements,
     72 	    False, XA_WM_SIZE_HINTS, &actual_type, &actual_format,
     73             &nitems, &leftover, (unsigned char **)&prop)
     74             != Success) return (0);
     75 
     76         if ((actual_type != XA_WM_SIZE_HINTS) ||
     77 	    (nitems < OldNumPropSizeElements) || (actual_format != 32)) {
     78 		Xfree (prop);
     79                 return(0);
     80 		}
     81 	hints->flags	  = (prop->flags & (USPosition|USSize|PAllHints));
     82 	hints->x 	  = cvtINT32toInt (prop->x);
     83 	hints->y 	  = cvtINT32toInt (prop->y);
     84 	hints->width      = cvtINT32toInt (prop->width);
     85 	hints->height     = cvtINT32toInt (prop->height);
     86 	hints->min_width  = cvtINT32toInt (prop->minWidth);
     87 	hints->min_height = cvtINT32toInt (prop->minHeight);
     88 	hints->max_width  = cvtINT32toInt (prop->maxWidth);
     89 	hints->max_height = cvtINT32toInt (prop->maxHeight);
     90 	hints->width_inc  = cvtINT32toInt (prop->widthInc);
     91 	hints->height_inc = cvtINT32toInt (prop->heightInc);
     92 	hints->min_aspect.x = cvtINT32toInt (prop->minAspectX);
     93 	hints->min_aspect.y = cvtINT32toInt (prop->minAspectY);
     94 	hints->max_aspect.x = cvtINT32toInt (prop->maxAspectX);
     95 	hints->max_aspect.y = cvtINT32toInt (prop->maxAspectY);
     96 	Xfree(prop);
     97 	return(1);
     98 }
     99 
    100 /*
    101  * must return a pointer to the hint, in malloc'd memory, or routine is not
    102  * extensible; any use of the caller's memory would cause things to be stepped
    103  * on.
    104  */
    105 
    106 XWMHints *XGetWMHints (
    107 	Display *dpy,
    108 	Window w)
    109 {
    110 	xPropWMHints *prop = NULL;
    111 	register XWMHints *hints;
    112         Atom actual_type;
    113         int actual_format;
    114         unsigned long leftover;
    115         unsigned long nitems;
    116 	if (XGetWindowProperty(dpy, w, XA_WM_HINTS,
    117 	    0L, (long)NumPropWMHintsElements,
    118 	    False, XA_WM_HINTS, &actual_type, &actual_format,
    119             &nitems, &leftover, (unsigned char **)&prop)
    120             != Success) return (NULL);
    121 
    122 	/* If the property is undefined on the window, return null pointer. */
    123 	/* pre-R3 bogusly truncated window_group, don't fail on them */
    124 
    125         if ((actual_type != XA_WM_HINTS) ||
    126 	    (nitems < (NumPropWMHintsElements - 1)) || (actual_format != 32)) {
    127 		Xfree (prop);
    128                 return(NULL);
    129 		}
    130 	/* static copies not allowed in library, due to reentrancy constraint*/
    131 	if ((hints = Xcalloc (1, sizeof(XWMHints)))) {
    132 	    hints->flags = prop->flags;
    133 	    hints->input = (prop->input ? True : False);
    134 	    hints->initial_state = cvtINT32toInt (prop->initialState);
    135 	    hints->icon_pixmap = prop->iconPixmap;
    136 	    hints->icon_window = prop->iconWindow;
    137 	    hints->icon_x = cvtINT32toInt (prop->iconX);
    138 	    hints->icon_y = cvtINT32toInt (prop->iconY);
    139 	    hints->icon_mask = prop->iconMask;
    140 	    if (nitems >= NumPropWMHintsElements)
    141 		hints->window_group = prop->windowGroup;
    142 	    else
    143 		hints->window_group = 0;
    144 	}
    145 	Xfree (prop);
    146 	return(hints);
    147 }
    148 
    149 Status
    150 XGetZoomHints (
    151 	Display *dpy,
    152 	Window w,
    153 	XSizeHints *zhints)
    154 {
    155 	return (XGetSizeHints(dpy, w, zhints, XA_WM_ZOOM_HINTS));
    156 }
    157 
    158 Status
    159 XGetNormalHints (
    160 	Display *dpy,
    161 	Window w,
    162 	XSizeHints *hints)
    163 {
    164 	return (XGetSizeHints(dpy, w, hints, XA_WM_NORMAL_HINTS));
    165 }
    166 
    167 
    168 /*
    169  * XGetIconSizes reads the property
    170  *	ICONSIZE_ATOM	type: ICONSIZE_ATOM format: 32
    171  */
    172 
    173 Status XGetIconSizes (
    174 	Display *dpy,
    175 	Window w,	/* typically, root */
    176 	XIconSize **size_list,	/* RETURN */
    177 	int *count) 		/* RETURN number of items on the list */
    178 {
    179 	xPropIconSize *prop = NULL;
    180 	register xPropIconSize *pp;
    181 	register XIconSize *hp, *hints;
    182         Atom actual_type;
    183         int actual_format;
    184         unsigned long leftover;
    185         unsigned long nitems;
    186 	register int i;
    187 
    188 	if (XGetWindowProperty(dpy, w, XA_WM_ICON_SIZE, 0L, 60L,
    189 	    False, XA_WM_ICON_SIZE, &actual_type, &actual_format,
    190             &nitems, &leftover, (unsigned char **)&prop)
    191             != Success) return (0);
    192 
    193 	pp = prop;
    194 
    195         if ((actual_type != XA_WM_ICON_SIZE) ||
    196 	    (nitems < NumPropIconSizeElements) ||
    197 	    (nitems % NumPropIconSizeElements != 0) ||
    198 	    (actual_format != 32)) {
    199 		Xfree (prop);
    200                 return(0);
    201 		}
    202 
    203 	/* static copies not allowed in library, due to reentrancy constraint*/
    204 
    205 	nitems /= NumPropIconSizeElements;
    206 	if (! (hp = hints = Xcalloc (nitems, sizeof(XIconSize)))) {
    207 	    Xfree (prop);
    208 	    return 0;
    209 	}
    210 
    211 	/* march down array putting things into native form */
    212 	for (i = 0; i < nitems; i++) {
    213 	    hp->min_width  = cvtINT32toInt (pp->minWidth);
    214 	    hp->min_height = cvtINT32toInt (pp->minHeight);
    215 	    hp->max_width  = cvtINT32toInt (pp->maxWidth);
    216 	    hp->max_height = cvtINT32toInt (pp->maxHeight);
    217 	    hp->width_inc  = cvtINT32toInt (pp->widthInc);
    218 	    hp->height_inc = cvtINT32toInt (pp->heightInc);
    219 	    hp += 1;
    220 	    pp += 1;
    221 	}
    222 	*count = nitems;
    223 	*size_list = hints;
    224 	Xfree (prop);
    225 	return(1);
    226 }
    227 
    228 
    229 Status XGetCommand (
    230     Display *dpy,
    231     Window w,
    232     char ***argvp,
    233     int *argcp)
    234 {
    235     XTextProperty tp;
    236     int argc;
    237     char **argv;
    238 
    239     if (!XGetTextProperty (dpy, w, &tp, XA_WM_COMMAND)) return 0;
    240 
    241     if (tp.encoding != XA_STRING || tp.format != 8) {
    242 	Xfree (tp.value);
    243 	return 0;
    244     }
    245 
    246 
    247     /*
    248      * ignore final <NUL> if present since UNIX WM_COMMAND is nul-terminated
    249      */
    250     if (tp.nitems && (tp.value[tp.nitems - 1] == '\0')) tp.nitems--;
    251 
    252 
    253     /*
    254      * create a string list and return if successful
    255      */
    256     if (!XTextPropertyToStringList (&tp, &argv, &argc)) {
    257 	Xfree (tp.value);
    258 	return (0);
    259     }
    260 
    261     Xfree (tp.value);
    262     *argvp = argv;
    263     *argcp = argc;
    264     return 1;
    265 }
    266 
    267 
    268 Status
    269 XGetTransientForHint(
    270 	Display *dpy,
    271 	Window w,
    272 	Window *propWindow)
    273 {
    274     Atom actual_type;
    275     int actual_format;
    276     unsigned long nitems;
    277     unsigned long leftover;
    278     Window *data = NULL;
    279     if (XGetWindowProperty(dpy, w, XA_WM_TRANSIENT_FOR, 0L, 1L, False,
    280         XA_WINDOW,
    281 	&actual_type,
    282 	&actual_format, &nitems, &leftover, (unsigned char **) &data)
    283 	!= Success) {
    284 	*propWindow = None;
    285 	return (0);
    286 	}
    287     if ( (actual_type == XA_WINDOW) && (actual_format == 32) &&
    288 	 (nitems != 0) ) {
    289 	*propWindow = *data;
    290 	Xfree( (char *) data);
    291 	return (1);
    292 	}
    293     *propWindow = None;
    294     Xfree( (char *) data);
    295     return(0);
    296 }
    297 
    298 Status
    299 XGetClassHint(
    300 	Display *dpy,
    301 	Window w,
    302 	XClassHint *classhint)	/* RETURN */
    303 {
    304     int len_name, len_class;
    305 
    306     Atom actual_type;
    307     int actual_format;
    308     unsigned long nitems;
    309     unsigned long leftover;
    310     unsigned char *data = NULL;
    311     if (XGetWindowProperty(dpy, w, XA_WM_CLASS, 0L, (long)BUFSIZ, False,
    312         XA_STRING,
    313 	&actual_type,
    314 	&actual_format, &nitems, &leftover, &data) != Success)
    315            return (0);
    316 
    317    if ( (actual_type == XA_STRING) && (actual_format == 8) ) {
    318 	len_name = (int) strlen((char *) data);
    319 	if (! (classhint->res_name = Xmalloc(len_name + 1))) {
    320 	    Xfree(data);
    321 	    return (0);
    322 	}
    323 	strcpy(classhint->res_name, (char *) data);
    324 	if (len_name == nitems) len_name--;
    325 	len_class = (int) strlen((char *) (data+len_name+1));
    326 	if (! (classhint->res_class = Xmalloc(len_class + 1))) {
    327 	    Xfree(classhint->res_name);
    328 	    classhint->res_name = (char *) NULL;
    329 	    Xfree(data);
    330 	    return (0);
    331 	}
    332 	strcpy(classhint->res_class, (char *) (data+len_name+1));
    333 	Xfree( (char *) data);
    334 	return(1);
    335 	}
    336     Xfree( (char *) data);
    337     return(0);
    338 }
    339