| 1 | /***********************************************************
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| 2 |
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| 3 | Copyright 1987, 1998 The Open Group
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| 4 |
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| 5 | Permission to use, copy, modify, distribute, and sell this software and its
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| 6 | documentation for any purpose is hereby granted without fee, provided that
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| 7 | the above copyright notice appear in all copies and that both that
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| 8 | copyright notice and this permission notice appear in supporting
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| 9 | documentation.
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| 10 |
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| 11 | The above copyright notice and this permission notice shall be included in
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| 12 | all copies or substantial portions of the Software.
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| 13 |
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| 14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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| 17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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| 18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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| 19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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| 20 |
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| 21 | Except as contained in this notice, the name of The Open Group shall not be
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| 22 | used in advertising or otherwise to promote the sale, use or other dealings
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| 23 | in this Software without prior written authorization from The Open Group.
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| 24 |
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| 25 |
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| 26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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| 27 |
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| 28 | All Rights Reserved
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| 29 |
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| 30 | Permission to use, copy, modify, and distribute this software and its
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| 31 | documentation for any purpose and without fee is hereby granted,
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| 32 | provided that the above copyright notice appear in all copies and that
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| 33 | both that copyright notice and this permission notice appear in
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| 34 | supporting documentation, and that the name of Digital not be
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| 35 | used in advertising or publicity pertaining to distribution of the
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| 36 | software without specific, written prior permission.
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| 37 |
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| 38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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| 39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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| 40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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| 41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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| 43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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| 44 | SOFTWARE.
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| 45 |
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| 46 | ******************************************************************/
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| 47 |
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| 48 | #ifndef WINDOWSTRUCT_H
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| 49 | #define WINDOWSTRUCT_H
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| 50 |
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| 51 | #include "window.h"
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| 52 | #include "pixmapstr.h"
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| 53 | #include "regionstr.h"
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| 54 | #include "cursor.h"
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| 55 | #include "property.h"
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| 56 | #include "resource.h" /* for ROOT_WINDOW_ID_BASE */
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| 57 | #include "dix.h"
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| 58 | #include "privates.h"
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| 59 | #include "miscstruct.h"
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| 60 | #include <X11/Xprotostr.h>
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| 61 | #include "opaque.h"
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| 62 | #include "inputstr.h"
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| 63 |
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| 64 | #define GuaranteeNothing 0
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| 65 | #define GuaranteeVisBack 1
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| 66 |
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| 67 | #define SameBackground(as, a, bs, b) \
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| 68 | ((as) == (bs) && ((as) == None || \
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| 69 | (as) == ParentRelative || \
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| 70 | SamePixUnion(a,b,as == BackgroundPixel)))
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| 71 |
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| 72 | #define SameBorder(as, a, bs, b) \
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| 73 | EqualPixUnion(as, a, bs, b)
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| 74 |
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| 75 | /* used as NULL-terminated list */
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| 76 | typedef struct _DevCursorNode {
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| 77 | CursorPtr cursor;
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| 78 | DeviceIntPtr dev;
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| 79 | struct _DevCursorNode* next;
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| 80 | } DevCursNodeRec, *DevCursNodePtr, *DevCursorList;
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| 81 |
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| 82 | /* Mask structure for GE extension as stored on the window.
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| 83 | * Allows one mask per extension.
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| 84 | * .eventMask - Summary mask for all clients, used for quick checking.
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| 85 | * .geClients - list of clients with their specific mask.
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| 86 | */
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| 87 | typedef struct _GenericClientMasks {
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| 88 | Mask eventMasks[MAXEXTENSIONS];
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| 89 | GenericMaskPtr geClients;
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| 90 | } GenericClientMasksRec, *GenericClientMasksPtr;
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| 91 |
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| 92 | typedef struct _WindowAccessRec {
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| 93 | int defaultRule; /* WindowAccessDenyAll */
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| 94 | DeviceIntPtr* perm;
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| 95 | int nperm;
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| 96 | DeviceIntPtr* deny;
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| 97 | int ndeny;
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| 98 | } WindowAccessRec, *WindowAccessPtr;
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| 99 |
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| 100 | typedef struct _WindowOpt {
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| 101 | VisualID visual; /* default: same as parent */
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| 102 | CursorPtr cursor; /* default: window.cursorNone */
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| 103 | Colormap colormap; /* default: same as parent */
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| 104 | Mask dontPropagateMask; /* default: window.dontPropagate */
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| 105 | Mask otherEventMasks; /* default: 0 */
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| 106 | struct _OtherClients *otherClients; /* default: NULL */
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| 107 | struct _GrabRec *passiveGrabs; /* default: NULL */
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| 108 | PropertyPtr userProps; /* default: NULL */
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| 109 | unsigned long backingBitPlanes; /* default: ~0L */
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| 110 | unsigned long backingPixel; /* default: 0 */
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| 111 | RegionPtr boundingShape; /* default: NULL */
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| 112 | RegionPtr clipShape; /* default: NULL */
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| 113 | RegionPtr inputShape; /* default: NULL */
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| 114 | struct _OtherInputMasks *inputMasks; /* default: NULL */
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| 115 | DevCursorList deviceCursors; /* default: NULL */
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| 116 | struct _GenericClientMasks *geMasks; /* default: NULL */
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| 117 | WindowAccessRec access;
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| 118 | } WindowOptRec, *WindowOptPtr;
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| 119 |
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| 120 | #define BackgroundPixel 2L
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| 121 | #define BackgroundPixmap 3L
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| 122 |
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| 123 | /*
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| 124 | * The redirectDraw field can have one of three values:
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| 125 | *
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| 126 | * RedirectDrawNone
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| 127 | * A normal window; painted into the same pixmap as the parent
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| 128 | * and clipping parent and siblings to its geometry. These
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| 129 | * windows get a clip list equal to the intersection of their
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| 130 | * geometry with the parent geometry, minus the geometry
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| 131 | * of overlapping None and Clipped siblings.
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| 132 | * RedirectDrawAutomatic
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| 133 | * A redirected window which clips parent and sibling drawing.
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| 134 | * Contents for these windows are manage inside the server.
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| 135 | * These windows get an internal clip list equal to their
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| 136 | * geometry.
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| 137 | * RedirectDrawManual
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| 138 | * A redirected window which does not clip parent and sibling
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| 139 | * drawing; the window must be represented within the parent
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| 140 | * geometry by the client performing the redirection management.
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| 141 | * Contents for these windows are managed outside the server.
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| 142 | * These windows get an internal clip list equal to their
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| 143 | * geometry.
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| 144 | */
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| 145 |
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| 146 | #define RedirectDrawNone 0
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| 147 | #define RedirectDrawAutomatic 1
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| 148 | #define RedirectDrawManual 2
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| 149 |
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| 150 | typedef struct _Window {
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| 151 | DrawableRec drawable;
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| 152 | PrivateRec *devPrivates;
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| 153 | WindowPtr parent; /* ancestor chain */
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| 154 | WindowPtr nextSib; /* next lower sibling */
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| 155 | WindowPtr prevSib; /* next higher sibling */
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| 156 | WindowPtr firstChild; /* top-most child */
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| 157 | WindowPtr lastChild; /* bottom-most child */
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| 158 | RegionRec clipList; /* clipping rectangle for output */
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| 159 | RegionRec borderClip; /* NotClippedByChildren + border */
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| 160 | union _Validate *valdata;
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| 161 | RegionRec winSize;
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| 162 | RegionRec borderSize;
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| 163 | DDXPointRec origin; /* position relative to parent */
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| 164 | unsigned short borderWidth;
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| 165 | unsigned short deliverableEvents;
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| 166 | Mask eventMask;
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| 167 | PixUnion background;
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| 168 | PixUnion border;
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| 169 | pointer backStorage; /* null when BS disabled */
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| 170 | WindowOptPtr optional;
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| 171 | unsigned backgroundState:2; /* None, Relative, Pixel, Pixmap */
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| 172 | unsigned borderIsPixel:1;
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| 173 | unsigned cursorIsNone:1; /* else real cursor (might inherit) */
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| 174 | unsigned backingStore:2;
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| 175 | unsigned saveUnder:1;
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| 176 | unsigned DIXsaveUnder:1;
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| 177 | unsigned bitGravity:4;
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| 178 | unsigned winGravity:4;
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| 179 | unsigned overrideRedirect:1;
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| 180 | unsigned visibility:2;
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| 181 | unsigned mapped:1;
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| 182 | unsigned realized:1; /* ancestors are all mapped */
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| 183 | unsigned viewable:1; /* realized && InputOutput */
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| 184 | unsigned dontPropagate:3;/* index into DontPropagateMasks */
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| 185 | unsigned forcedBS:1; /* system-supplied backingStore */
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| 186 | unsigned redirectDraw:2; /* COMPOSITE rendering redirect */
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| 187 | unsigned forcedBG:1; /* must have an opaque background */
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| 188 | #ifdef ROOTLESS
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| 189 | unsigned rootlessUnhittable:1; /* doesn't hit-test */
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| 190 | #endif
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| 191 | } WindowRec;
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| 192 |
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| 193 | /*
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| 194 | * Ok, a bunch of macros for accessing the optional record
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| 195 | * fields (or filling the appropriate default value)
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| 196 | */
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| 197 |
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| 198 | extern Mask DontPropagateMasks[];
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| 199 |
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| 200 | #define wTrackParent(w,field) ((w)->optional ? \
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| 201 | (w)->optional->field \
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| 202 | : FindWindowWithOptional(w)->optional->field)
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| 203 | #define wUseDefault(w,field,def) ((w)->optional ? \
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| 204 | (w)->optional->field \
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| 205 | : def)
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| 206 |
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| 207 | #define wVisual(w) wTrackParent(w, visual)
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| 208 | #define wCursor(w) ((w)->cursorIsNone ? None : wTrackParent(w, cursor))
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| 209 | #define wColormap(w) ((w)->drawable.class == InputOnly ? None : wTrackParent(w, colormap))
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| 210 | #define wDontPropagateMask(w) wUseDefault(w, dontPropagateMask, DontPropagateMasks[(w)->dontPropagate])
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| 211 | #define wOtherEventMasks(w) wUseDefault(w, otherEventMasks, 0)
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| 212 | #define wOtherClients(w) wUseDefault(w, otherClients, NULL)
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| 213 | #define wOtherInputMasks(w) wUseDefault(w, inputMasks, NULL)
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| 214 | #define wPassiveGrabs(w) wUseDefault(w, passiveGrabs, NULL)
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| 215 | #define wUserProps(w) wUseDefault(w, userProps, NULL)
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| 216 | #define wBackingBitPlanes(w) wUseDefault(w, backingBitPlanes, ~0L)
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| 217 | #define wBackingPixel(w) wUseDefault(w, backingPixel, 0)
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| 218 | #define wBoundingShape(w) wUseDefault(w, boundingShape, NULL)
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| 219 | #define wClipShape(w) wUseDefault(w, clipShape, NULL)
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| 220 | #define wInputShape(w) wUseDefault(w, inputShape, NULL)
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| 221 | #define wClient(w) (clients[CLIENT_ID((w)->drawable.id)])
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| 222 | #define wBorderWidth(w) ((int) (w)->borderWidth)
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| 223 |
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| 224 | /* true when w needs a border drawn. */
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| 225 |
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| 226 | #define HasBorder(w) ((w)->borderWidth || wClipShape(w))
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| 227 |
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| 228 | typedef struct _ScreenSaverStuff {
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| 229 | WindowPtr pWindow;
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| 230 | XID wid;
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| 231 | char blanked;
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| 232 | Bool (*ExternalScreenSaver)(
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| 233 | ScreenPtr /*pScreen*/,
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| 234 | int /*xstate*/,
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| 235 | Bool /*force*/);
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| 236 | } ScreenSaverStuffRec, *ScreenSaverStuffPtr;
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| 237 |
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| 238 | #define SCREEN_IS_BLANKED 0
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| 239 | #define SCREEN_ISNT_SAVED 1
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| 240 | #define SCREEN_IS_TILED 2
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| 241 | #define SCREEN_IS_BLACK 3
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| 242 |
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| 243 | #define HasSaverWindow(i) (savedScreenInfo[i].pWindow != NullWindow)
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| 244 |
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| 245 | extern int screenIsSaved;
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| 246 | extern ScreenSaverStuffRec savedScreenInfo[MAXSCREENS];
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| 247 |
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| 248 | #endif /* WINDOWSTRUCT_H */
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