1860 lines
54 KiB
C
1860 lines
54 KiB
C
/*
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* tkPack.c --
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*
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* This file contains code to implement the "packer" geometry manager for
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* Tk.
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*
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* Copyright (c) 1990-1994 The Regents of the University of California.
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* Copyright (c) 1994-1997 Sun Microsystems, Inc.
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*
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* See the file "license.terms" for information on usage and redistribution of
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* this file, and for a DISCLAIMER OF ALL WARRANTIES.
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*/
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#include "tkInt.h"
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typedef enum {TOP, BOTTOM, LEFT, RIGHT} Side;
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static const char *const sideNames[] = {
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"top", "bottom", "left", "right", NULL
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};
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/*
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* For each window that the packer cares about (either because the window is
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* managed by the packer or because the window has slaves that are managed by
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* the packer), there is a structure of the following type:
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*/
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typedef struct Packer {
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Tk_Window tkwin; /* Tk token for window. NULL means that the
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* window has been deleted, but the packet
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* hasn't had a chance to clean up yet because
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* the structure is still in use. */
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struct Packer *masterPtr; /* Master window within which this window is
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* packed (NULL means this window isn't
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* managed by the packer). */
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struct Packer *nextPtr; /* Next window packed within same master. List
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* is priority-ordered: first on list gets
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* packed first. */
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struct Packer *slavePtr; /* First in list of slaves packed inside this
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* window (NULL means no packed slaves). */
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Side side; /* Side of master against which this window is
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* packed. */
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Tk_Anchor anchor; /* If frame allocated for window is larger
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* than window needs, this indicates how where
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* to position window in frame. */
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int padX, padY; /* Total additional pixels to leave around the
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* window. Some is of this space is on each
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* side. This is space *outside* the window:
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* we'll allocate extra space in frame but
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* won't enlarge window). */
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int padLeft, padTop; /* The part of padX or padY to use on the left
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* or top of the widget, respectively. By
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* default, this is half of padX or padY. */
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int iPadX, iPadY; /* Total extra pixels to allocate inside the
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* window (half of this amount will appear on
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* each side). */
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int doubleBw; /* Twice the window's last known border width.
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* If this changes, the window must be
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* repacked within its master. */
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int *abortPtr; /* If non-NULL, it means that there is a
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* nested call to ArrangePacking already
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* working on this window. *abortPtr may be
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* set to 1 to abort that nested call. This
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* happens, for example, if tkwin or any of
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* its slaves is deleted. */
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int flags; /* Miscellaneous flags; see below for
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* definitions. */
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} Packer;
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/*
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* Flag values for Packer structures:
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*
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* REQUESTED_REPACK: 1 means a Tcl_DoWhenIdle request has already
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* been made to repack all the slaves of this
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* window.
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* FILLX: 1 means if frame allocated for window is wider
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* than window needs, expand window to fill
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* frame. 0 means don't make window any larger
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* than needed.
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* FILLY: Same as FILLX, except for height.
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* EXPAND: 1 means this window's frame will absorb any
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* extra space in the master window.
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* OLD_STYLE: 1 means this window is being managed with the
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* old-style packer algorithms (before Tk version
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* 3.3). The main difference is that padding and
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* filling are done differently.
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* DONT_PROPAGATE: 1 means don't set this window's requested
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* size. 0 means if this window is a master then
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* Tk will set its requested size to fit the
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* needs of its slaves.
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* ALLOCED_MASTER 1 means that Pack has allocated itself as
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* geometry master for this window.
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*/
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#define REQUESTED_REPACK 1
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#define FILLX 2
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#define FILLY 4
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#define EXPAND 8
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#define OLD_STYLE 16
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#define DONT_PROPAGATE 32
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#define ALLOCED_MASTER 64
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/*
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* The following structure is the official type record for the packer:
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*/
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static void PackReqProc(ClientData clientData, Tk_Window tkwin);
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static void PackLostSlaveProc(ClientData clientData,
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Tk_Window tkwin);
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static const Tk_GeomMgr packerType = {
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"pack", /* name */
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PackReqProc, /* requestProc */
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PackLostSlaveProc, /* lostSlaveProc */
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};
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/*
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* Forward declarations for functions defined later in this file:
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*/
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static void ArrangePacking(ClientData clientData);
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static int ConfigureSlaves(Tcl_Interp *interp, Tk_Window tkwin,
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int objc, Tcl_Obj *const objv[]);
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static void DestroyPacker(void *memPtr);
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static Packer * GetPacker(Tk_Window tkwin);
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static int PackAfter(Tcl_Interp *interp, Packer *prevPtr,
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Packer *masterPtr, int objc,Tcl_Obj *const objv[]);
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static void PackStructureProc(ClientData clientData,
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XEvent *eventPtr);
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static void Unlink(Packer *packPtr);
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static int XExpansion(Packer *slavePtr, int cavityWidth);
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static int YExpansion(Packer *slavePtr, int cavityHeight);
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/*
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*------------------------------------------------------------------------
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*
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* TkAppendPadAmount --
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*
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* This function generates a text value that describes one of the -padx,
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* -pady, -ipadx, or -ipady configuration options. The text value
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* generated is appended to the given Tcl_Obj.
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*
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* Results:
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* None.
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*
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* Side effects:
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* None.
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*
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*------------------------------------------------------------------------
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*/
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void
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TkAppendPadAmount(
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Tcl_Obj *bufferObj, /* The interpreter into which the result is
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* written. */
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const char *switchName, /* One of "padx", "pady", "ipadx" or
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* "ipady" */
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int halfSpace, /* The left or top padding amount */
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int allSpace) /* The total amount of padding */
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{
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Tcl_Obj *padding[2];
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if (halfSpace*2 == allSpace) {
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Tcl_DictObjPut(NULL, bufferObj, Tcl_NewStringObj(switchName, -1),
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Tcl_NewIntObj(halfSpace));
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} else {
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padding[0] = Tcl_NewIntObj(halfSpace);
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padding[1] = Tcl_NewIntObj(allSpace - halfSpace);
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Tcl_DictObjPut(NULL, bufferObj, Tcl_NewStringObj(switchName, -1),
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Tcl_NewListObj(2, padding));
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}
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}
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/*
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*------------------------------------------------------------------------
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*
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* Tk_PackCmd --
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*
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* This function is invoked to process the "pack" Tcl command. See the
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* user documentation for details on what it does.
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*
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* Results:
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* A standard Tcl result.
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*
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* Side effects:
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* See the user documentation.
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*
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*------------------------------------------------------------------------
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*/
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int
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Tk_PackObjCmd(
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ClientData clientData, /* Main window associated with interpreter. */
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Tcl_Interp *interp, /* Current interpreter. */
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int objc, /* Number of arguments. */
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Tcl_Obj *const objv[]) /* Argument objects. */
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{
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Tk_Window tkwin = clientData;
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const char *argv2;
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static const char *const optionStrings[] = {
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/* after, append, before and unpack are deprecated */
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"after", "append", "before", "unpack",
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"configure", "forget", "info", "propagate", "slaves", NULL };
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enum options {
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PACK_AFTER, PACK_APPEND, PACK_BEFORE, PACK_UNPACK,
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PACK_CONFIGURE, PACK_FORGET, PACK_INFO, PACK_PROPAGATE, PACK_SLAVES };
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int index;
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if (objc >= 2) {
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const char *string = Tcl_GetString(objv[1]);
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if (string[0] == '.') {
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return ConfigureSlaves(interp, tkwin, objc-1, objv+1);
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}
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}
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if (objc < 3) {
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Tcl_WrongNumArgs(interp, 1, objv, "option arg ?arg ...?");
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return TCL_ERROR;
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}
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if (Tcl_GetIndexFromObjStruct(interp, objv[1], optionStrings,
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sizeof(char *), "option", 0, &index) != TCL_OK) {
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/*
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* Call it again without the deprecated ones to get a proper error
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* message. This works well since there can't be any ambiguity between
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* deprecated and new options.
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*/
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Tcl_ResetResult(interp);
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Tcl_GetIndexFromObjStruct(interp, objv[1], &optionStrings[4],
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sizeof(char *), "option", 0, &index);
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return TCL_ERROR;
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}
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argv2 = Tcl_GetString(objv[2]);
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switch ((enum options) index) {
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case PACK_AFTER: {
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Packer *prevPtr;
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Tk_Window tkwin2;
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if (TkGetWindowFromObj(interp, tkwin, objv[2], &tkwin2) != TCL_OK) {
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return TCL_ERROR;
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}
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prevPtr = GetPacker(tkwin2);
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if (prevPtr->masterPtr == NULL) {
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Tcl_SetObjResult(interp, Tcl_ObjPrintf(
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"window \"%s\" isn't packed", argv2));
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Tcl_SetErrorCode(interp, "TK", "PACK", "NOT_PACKED", NULL);
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return TCL_ERROR;
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}
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return PackAfter(interp, prevPtr, prevPtr->masterPtr, objc-3, objv+3);
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}
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case PACK_APPEND: {
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Packer *masterPtr;
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register Packer *prevPtr;
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Tk_Window tkwin2;
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if (TkGetWindowFromObj(interp, tkwin, objv[2], &tkwin2) != TCL_OK) {
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return TCL_ERROR;
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}
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masterPtr = GetPacker(tkwin2);
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prevPtr = masterPtr->slavePtr;
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if (prevPtr != NULL) {
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while (prevPtr->nextPtr != NULL) {
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prevPtr = prevPtr->nextPtr;
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}
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}
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return PackAfter(interp, prevPtr, masterPtr, objc-3, objv+3);
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}
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case PACK_BEFORE: {
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Packer *packPtr, *masterPtr;
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register Packer *prevPtr;
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Tk_Window tkwin2;
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if (TkGetWindowFromObj(interp, tkwin, objv[2], &tkwin2) != TCL_OK) {
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return TCL_ERROR;
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}
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packPtr = GetPacker(tkwin2);
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if (packPtr->masterPtr == NULL) {
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Tcl_SetObjResult(interp, Tcl_ObjPrintf(
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"window \"%s\" isn't packed", argv2));
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Tcl_SetErrorCode(interp, "TK", "PACK", "NOT_PACKED", NULL);
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return TCL_ERROR;
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}
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masterPtr = packPtr->masterPtr;
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prevPtr = masterPtr->slavePtr;
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if (prevPtr == packPtr) {
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prevPtr = NULL;
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} else {
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for ( ; ; prevPtr = prevPtr->nextPtr) {
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if (prevPtr == NULL) {
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Tcl_Panic("\"pack before\" couldn't find predecessor");
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}
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if (prevPtr->nextPtr == packPtr) {
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break;
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}
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}
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}
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return PackAfter(interp, prevPtr, masterPtr, objc-3, objv+3);
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}
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case PACK_CONFIGURE:
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if (argv2[0] != '.') {
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Tcl_SetObjResult(interp, Tcl_ObjPrintf(
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"bad argument \"%s\": must be name of window", argv2));
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Tcl_SetErrorCode(interp, "TK", "VALUE", "WINDOW_PATH", NULL);
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return TCL_ERROR;
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}
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return ConfigureSlaves(interp, tkwin, objc-2, objv+2);
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case PACK_FORGET: {
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Tk_Window slave;
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Packer *slavePtr;
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int i;
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for (i = 2; i < objc; i++) {
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if (TkGetWindowFromObj(interp, tkwin, objv[i], &slave) != TCL_OK) {
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continue;
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}
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slavePtr = GetPacker(slave);
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if ((slavePtr != NULL) && (slavePtr->masterPtr != NULL)) {
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Tk_ManageGeometry(slave, NULL, NULL);
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if (slavePtr->masterPtr->tkwin != Tk_Parent(slavePtr->tkwin)) {
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Tk_UnmaintainGeometry(slavePtr->tkwin,
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slavePtr->masterPtr->tkwin);
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}
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Unlink(slavePtr);
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Tk_UnmapWindow(slavePtr->tkwin);
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}
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}
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break;
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}
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case PACK_INFO: {
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register Packer *slavePtr;
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Tk_Window slave;
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Tcl_Obj *infoObj;
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if (objc != 3) {
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Tcl_WrongNumArgs(interp, 2, objv, "window");
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return TCL_ERROR;
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}
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if (TkGetWindowFromObj(interp, tkwin, objv[2], &slave) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
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slavePtr = GetPacker(slave);
|
||
if (slavePtr->masterPtr == NULL) {
|
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Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"window \"%s\" isn't packed", argv2));
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Tcl_SetErrorCode(interp, "TK", "PACK", "NOT_PACKED", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
infoObj = Tcl_NewObj();
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-in", -1),
|
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TkNewWindowObj(slavePtr->masterPtr->tkwin));
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-anchor", -1),
|
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Tcl_NewStringObj(Tk_NameOfAnchor(slavePtr->anchor), -1));
|
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Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-expand", -1),
|
||
Tcl_NewBooleanObj(slavePtr->flags & EXPAND));
|
||
switch (slavePtr->flags & (FILLX|FILLY)) {
|
||
case 0:
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-fill", -1),
|
||
Tcl_NewStringObj("none", -1));
|
||
break;
|
||
case FILLX:
|
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Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-fill", -1),
|
||
Tcl_NewStringObj("x", -1));
|
||
break;
|
||
case FILLY:
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-fill", -1),
|
||
Tcl_NewStringObj("y", -1));
|
||
break;
|
||
case FILLX|FILLY:
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-fill", -1),
|
||
Tcl_NewStringObj("both", -1));
|
||
break;
|
||
}
|
||
TkAppendPadAmount(infoObj, "-ipadx", slavePtr->iPadX/2, slavePtr->iPadX);
|
||
TkAppendPadAmount(infoObj, "-ipady", slavePtr->iPadY/2, slavePtr->iPadY);
|
||
TkAppendPadAmount(infoObj, "-padx", slavePtr->padLeft,slavePtr->padX);
|
||
TkAppendPadAmount(infoObj, "-pady", slavePtr->padTop, slavePtr->padY);
|
||
Tcl_DictObjPut(NULL, infoObj, Tcl_NewStringObj("-side", -1),
|
||
Tcl_NewStringObj(sideNames[slavePtr->side], -1));
|
||
Tcl_SetObjResult(interp, infoObj);
|
||
break;
|
||
}
|
||
case PACK_PROPAGATE: {
|
||
Tk_Window master;
|
||
Packer *masterPtr;
|
||
int propagate;
|
||
|
||
if (objc > 4) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "window ?boolean?");
|
||
return TCL_ERROR;
|
||
}
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[2], &master) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr = GetPacker(master);
|
||
if (objc == 3) {
|
||
Tcl_SetObjResult(interp,
|
||
Tcl_NewBooleanObj(!(masterPtr->flags & DONT_PROPAGATE)));
|
||
return TCL_OK;
|
||
}
|
||
if (Tcl_GetBooleanFromObj(interp, objv[3], &propagate) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (propagate) {
|
||
/*
|
||
* If we have slaves, we need to register as geometry master.
|
||
*/
|
||
|
||
if (masterPtr->slavePtr != NULL) {
|
||
if (TkSetGeometryMaster(interp, master, "pack") != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr->flags |= ALLOCED_MASTER;
|
||
}
|
||
masterPtr->flags &= ~DONT_PROPAGATE;
|
||
|
||
/*
|
||
* Repack the master to allow new geometry information to
|
||
* propagate upwards to the master's master.
|
||
*/
|
||
|
||
if (masterPtr->abortPtr != NULL) {
|
||
*masterPtr->abortPtr = 1;
|
||
}
|
||
if (!(masterPtr->flags & REQUESTED_REPACK)) {
|
||
masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, masterPtr);
|
||
}
|
||
} else {
|
||
if (masterPtr->flags & ALLOCED_MASTER) {
|
||
TkFreeGeometryMaster(master, "pack");
|
||
masterPtr->flags &= ~ALLOCED_MASTER;
|
||
}
|
||
masterPtr->flags |= DONT_PROPAGATE;
|
||
}
|
||
break;
|
||
}
|
||
case PACK_SLAVES: {
|
||
Tk_Window master;
|
||
Packer *masterPtr, *slavePtr;
|
||
Tcl_Obj *resultObj;
|
||
|
||
if (objc != 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "window");
|
||
return TCL_ERROR;
|
||
}
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[2], &master) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
resultObj = Tcl_NewObj();
|
||
masterPtr = GetPacker(master);
|
||
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
|
||
slavePtr = slavePtr->nextPtr) {
|
||
Tcl_ListObjAppendElement(NULL, resultObj,
|
||
TkNewWindowObj(slavePtr->tkwin));
|
||
}
|
||
Tcl_SetObjResult(interp, resultObj);
|
||
break;
|
||
}
|
||
case PACK_UNPACK: {
|
||
Tk_Window tkwin2;
|
||
Packer *packPtr;
|
||
|
||
if (objc != 3) {
|
||
Tcl_WrongNumArgs(interp, 2, objv, "window");
|
||
return TCL_ERROR;
|
||
}
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[2], &tkwin2) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
packPtr = GetPacker(tkwin2);
|
||
if ((packPtr != NULL) && (packPtr->masterPtr != NULL)) {
|
||
Tk_ManageGeometry(tkwin2, NULL, NULL);
|
||
if (packPtr->masterPtr->tkwin != Tk_Parent(packPtr->tkwin)) {
|
||
Tk_UnmaintainGeometry(packPtr->tkwin,
|
||
packPtr->masterPtr->tkwin);
|
||
}
|
||
Unlink(packPtr);
|
||
Tk_UnmapWindow(packPtr->tkwin);
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*------------------------------------------------------------------------
|
||
*
|
||
* PackReqProc --
|
||
*
|
||
* This function is invoked by Tk_GeometryRequest for windows managed by
|
||
* the packer.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Arranges for tkwin, and all its managed siblings, to be re-packed at
|
||
* the next idle point.
|
||
*
|
||
*------------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
static void
|
||
PackReqProc(
|
||
ClientData clientData, /* Packer's information about window that got
|
||
* new preferred geometry. */
|
||
Tk_Window tkwin) /* Other Tk-related information about the
|
||
* window. */
|
||
{
|
||
register Packer *packPtr = clientData;
|
||
|
||
packPtr = packPtr->masterPtr;
|
||
if (!(packPtr->flags & REQUESTED_REPACK)) {
|
||
packPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, packPtr);
|
||
}
|
||
}
|
||
|
||
/*
|
||
*------------------------------------------------------------------------
|
||
*
|
||
* PackLostSlaveProc --
|
||
*
|
||
* This function is invoked by Tk whenever some other geometry claims
|
||
* control over a slave that used to be managed by us.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Forgets all packer-related information about the slave.
|
||
*
|
||
*------------------------------------------------------------------------
|
||
*/
|
||
|
||
/* ARGSUSED */
|
||
static void
|
||
PackLostSlaveProc(
|
||
ClientData clientData, /* Packer structure for slave window that was
|
||
* stolen away. */
|
||
Tk_Window tkwin) /* Tk's handle for the slave window. */
|
||
{
|
||
register Packer *slavePtr = clientData;
|
||
|
||
if (slavePtr->masterPtr->tkwin != Tk_Parent(slavePtr->tkwin)) {
|
||
Tk_UnmaintainGeometry(slavePtr->tkwin, slavePtr->masterPtr->tkwin);
|
||
}
|
||
Unlink(slavePtr);
|
||
Tk_UnmapWindow(slavePtr->tkwin);
|
||
}
|
||
|
||
/*
|
||
*------------------------------------------------------------------------
|
||
*
|
||
* ArrangePacking --
|
||
*
|
||
* This function is invoked (using the Tcl_DoWhenIdle mechanism) to
|
||
* re-layout a set of windows managed by the packer. It is invoked at
|
||
* idle time so that a series of packer requests can be merged into a
|
||
* single layout operation.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The packed slaves of masterPtr may get resized or moved.
|
||
*
|
||
*------------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
ArrangePacking(
|
||
ClientData clientData) /* Structure describing master whose slaves
|
||
* are to be re-layed out. */
|
||
{
|
||
register Packer *masterPtr = clientData;
|
||
register Packer *slavePtr;
|
||
int cavityX, cavityY, cavityWidth, cavityHeight;
|
||
/* These variables keep track of the
|
||
* as-yet-unallocated space remaining in the
|
||
* middle of the master window. */
|
||
int frameX, frameY, frameWidth, frameHeight;
|
||
/* These variables keep track of the frame
|
||
* allocated to the current window. */
|
||
int x, y, width, height; /* These variables are used to hold the actual
|
||
* geometry of the current window. */
|
||
int abort; /* May get set to non-zero to abort this
|
||
* repacking operation. */
|
||
int borderX, borderY;
|
||
int borderTop, borderBtm;
|
||
int borderLeft, borderRight;
|
||
int maxWidth, maxHeight, tmp;
|
||
|
||
masterPtr->flags &= ~REQUESTED_REPACK;
|
||
|
||
/*
|
||
* If the master has no slaves anymore, then don't do anything at all:
|
||
* just leave the master's size as-is.
|
||
*/
|
||
|
||
if (masterPtr->slavePtr == NULL) {
|
||
return;
|
||
}
|
||
|
||
/*
|
||
* Abort any nested call to ArrangePacking for this window, since we'll do
|
||
* everything necessary here, and set up so this call can be aborted if
|
||
* necessary.
|
||
*/
|
||
|
||
if (masterPtr->abortPtr != NULL) {
|
||
*masterPtr->abortPtr = 1;
|
||
}
|
||
masterPtr->abortPtr = &abort;
|
||
abort = 0;
|
||
Tcl_Preserve(masterPtr);
|
||
|
||
/*
|
||
* Pass #1: scan all the slaves to figure out the total amount of space
|
||
* needed. Two separate width and height values are computed:
|
||
*
|
||
* width - Holds the sum of the widths (plus padding) of all the
|
||
* slaves seen so far that were packed LEFT or RIGHT.
|
||
* height - Holds the sum of the heights (plus padding) of all the
|
||
* slaves seen so far that were packed TOP or BOTTOM.
|
||
*
|
||
* maxWidth - Gradually builds up the width needed by the master to
|
||
* just barely satisfy all the slave's needs. For each
|
||
* slave, the code computes the width needed for all the
|
||
* slaves so far and updates maxWidth if the new value is
|
||
* greater.
|
||
* maxHeight - Same as maxWidth, except keeps height info.
|
||
*/
|
||
|
||
width = maxWidth = Tk_InternalBorderLeft(masterPtr->tkwin) +
|
||
Tk_InternalBorderRight(masterPtr->tkwin);
|
||
height = maxHeight = Tk_InternalBorderTop(masterPtr->tkwin) +
|
||
Tk_InternalBorderBottom(masterPtr->tkwin);
|
||
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
|
||
slavePtr = slavePtr->nextPtr) {
|
||
if ((slavePtr->side == TOP) || (slavePtr->side == BOTTOM)) {
|
||
tmp = Tk_ReqWidth(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padX + slavePtr->iPadX + width;
|
||
if (tmp > maxWidth) {
|
||
maxWidth = tmp;
|
||
}
|
||
height += Tk_ReqHeight(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padY + slavePtr->iPadY;
|
||
} else {
|
||
tmp = Tk_ReqHeight(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padY + slavePtr->iPadY + height;
|
||
if (tmp > maxHeight) {
|
||
maxHeight = tmp;
|
||
}
|
||
width += Tk_ReqWidth(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padX + slavePtr->iPadX;
|
||
}
|
||
}
|
||
if (width > maxWidth) {
|
||
maxWidth = width;
|
||
}
|
||
if (height > maxHeight) {
|
||
maxHeight = height;
|
||
}
|
||
|
||
if (maxWidth < Tk_MinReqWidth(masterPtr->tkwin)) {
|
||
maxWidth = Tk_MinReqWidth(masterPtr->tkwin);
|
||
}
|
||
if (maxHeight < Tk_MinReqHeight(masterPtr->tkwin)) {
|
||
maxHeight = Tk_MinReqHeight(masterPtr->tkwin);
|
||
}
|
||
|
||
/*
|
||
* If the total amount of space needed in the master window has changed,
|
||
* and if we're propagating geometry information, then notify the next
|
||
* geometry manager up and requeue ourselves to start again after the
|
||
* master has had a chance to resize us.
|
||
*/
|
||
|
||
if (((maxWidth != Tk_ReqWidth(masterPtr->tkwin))
|
||
|| (maxHeight != Tk_ReqHeight(masterPtr->tkwin)))
|
||
&& !(masterPtr->flags & DONT_PROPAGATE)) {
|
||
Tk_GeometryRequest(masterPtr->tkwin, maxWidth, maxHeight);
|
||
masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, masterPtr);
|
||
goto done;
|
||
}
|
||
|
||
/*
|
||
* Pass #2: scan the slaves a second time assigning new sizes. The
|
||
* "cavity" variables keep track of the unclaimed space in the cavity of
|
||
* the window; this shrinks inward as we allocate windows around the
|
||
* edges. The "frame" variables keep track of the space allocated to the
|
||
* current window and its frame. The current window is then placed
|
||
* somewhere inside the frame, depending on anchor.
|
||
*/
|
||
|
||
cavityX = x = Tk_InternalBorderLeft(masterPtr->tkwin);
|
||
cavityY = y = Tk_InternalBorderTop(masterPtr->tkwin);
|
||
cavityWidth = Tk_Width(masterPtr->tkwin) -
|
||
Tk_InternalBorderLeft(masterPtr->tkwin) -
|
||
Tk_InternalBorderRight(masterPtr->tkwin);
|
||
cavityHeight = Tk_Height(masterPtr->tkwin) -
|
||
Tk_InternalBorderTop(masterPtr->tkwin) -
|
||
Tk_InternalBorderBottom(masterPtr->tkwin);
|
||
for (slavePtr = masterPtr->slavePtr; slavePtr != NULL;
|
||
slavePtr = slavePtr->nextPtr) {
|
||
if ((slavePtr->side == TOP) || (slavePtr->side == BOTTOM)) {
|
||
frameWidth = cavityWidth;
|
||
frameHeight = Tk_ReqHeight(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padY + slavePtr->iPadY;
|
||
if (slavePtr->flags & EXPAND) {
|
||
frameHeight += YExpansion(slavePtr, cavityHeight);
|
||
}
|
||
cavityHeight -= frameHeight;
|
||
if (cavityHeight < 0) {
|
||
frameHeight += cavityHeight;
|
||
cavityHeight = 0;
|
||
}
|
||
frameX = cavityX;
|
||
if (slavePtr->side == TOP) {
|
||
frameY = cavityY;
|
||
cavityY += frameHeight;
|
||
} else {
|
||
frameY = cavityY + cavityHeight;
|
||
}
|
||
} else {
|
||
frameHeight = cavityHeight;
|
||
frameWidth = Tk_ReqWidth(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padX + slavePtr->iPadX;
|
||
if (slavePtr->flags & EXPAND) {
|
||
frameWidth += XExpansion(slavePtr, cavityWidth);
|
||
}
|
||
cavityWidth -= frameWidth;
|
||
if (cavityWidth < 0) {
|
||
frameWidth += cavityWidth;
|
||
cavityWidth = 0;
|
||
}
|
||
frameY = cavityY;
|
||
if (slavePtr->side == LEFT) {
|
||
frameX = cavityX;
|
||
cavityX += frameWidth;
|
||
} else {
|
||
frameX = cavityX + cavityWidth;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Now that we've got the size of the frame for the window, compute
|
||
* the window's actual size and location using the fill, padding, and
|
||
* frame factors. The variables "borderX" and "borderY" are used to
|
||
* handle the differences between old-style packing and the new style
|
||
* (in old-style, iPadX and iPadY are always zero and padding is
|
||
* completely ignored except when computing frame size).
|
||
*/
|
||
|
||
if (slavePtr->flags & OLD_STYLE) {
|
||
borderX = borderY = 0;
|
||
borderTop = borderBtm = 0;
|
||
borderLeft = borderRight = 0;
|
||
} else {
|
||
borderX = slavePtr->padX;
|
||
borderY = slavePtr->padY;
|
||
borderLeft = slavePtr->padLeft;
|
||
borderRight = borderX - borderLeft;
|
||
borderTop = slavePtr->padTop;
|
||
borderBtm = borderY - borderTop;
|
||
}
|
||
width = Tk_ReqWidth(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->iPadX;
|
||
if ((slavePtr->flags & FILLX)
|
||
|| (width > (frameWidth - borderX))) {
|
||
width = frameWidth - borderX;
|
||
}
|
||
height = Tk_ReqHeight(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->iPadY;
|
||
if ((slavePtr->flags & FILLY)
|
||
|| (height > (frameHeight - borderY))) {
|
||
height = frameHeight - borderY;
|
||
}
|
||
switch (slavePtr->anchor) {
|
||
case TK_ANCHOR_N:
|
||
x = frameX + (borderLeft + frameWidth - width - borderRight)/2;
|
||
y = frameY + borderTop;
|
||
break;
|
||
case TK_ANCHOR_NE:
|
||
x = frameX + frameWidth - width - borderRight;
|
||
y = frameY + borderTop;
|
||
break;
|
||
case TK_ANCHOR_E:
|
||
x = frameX + frameWidth - width - borderRight;
|
||
y = frameY + (borderTop + frameHeight - height - borderBtm)/2;
|
||
break;
|
||
case TK_ANCHOR_SE:
|
||
x = frameX + frameWidth - width - borderRight;
|
||
y = frameY + frameHeight - height - borderBtm;
|
||
break;
|
||
case TK_ANCHOR_S:
|
||
x = frameX + (borderLeft + frameWidth - width - borderRight)/2;
|
||
y = frameY + frameHeight - height - borderBtm;
|
||
break;
|
||
case TK_ANCHOR_SW:
|
||
x = frameX + borderLeft;
|
||
y = frameY + frameHeight - height - borderBtm;
|
||
break;
|
||
case TK_ANCHOR_W:
|
||
x = frameX + borderLeft;
|
||
y = frameY + (borderTop + frameHeight - height - borderBtm)/2;
|
||
break;
|
||
case TK_ANCHOR_NW:
|
||
x = frameX + borderLeft;
|
||
y = frameY + borderTop;
|
||
break;
|
||
case TK_ANCHOR_CENTER:
|
||
x = frameX + (borderLeft + frameWidth - width - borderRight)/2;
|
||
y = frameY + (borderTop + frameHeight - height - borderBtm)/2;
|
||
break;
|
||
default:
|
||
Tcl_Panic("bad frame factor in ArrangePacking");
|
||
}
|
||
width -= slavePtr->doubleBw;
|
||
height -= slavePtr->doubleBw;
|
||
|
||
/*
|
||
* The final step is to set the position, size, and mapped/unmapped
|
||
* state of the slave. If the slave is a child of the master, then do
|
||
* this here. Otherwise let Tk_MaintainGeometry do the work.
|
||
*/
|
||
|
||
if (masterPtr->tkwin == Tk_Parent(slavePtr->tkwin)) {
|
||
if ((width <= 0) || (height <= 0)) {
|
||
Tk_UnmapWindow(slavePtr->tkwin);
|
||
} else {
|
||
if ((x != Tk_X(slavePtr->tkwin))
|
||
|| (y != Tk_Y(slavePtr->tkwin))
|
||
|| (width != Tk_Width(slavePtr->tkwin))
|
||
|| (height != Tk_Height(slavePtr->tkwin))) {
|
||
Tk_MoveResizeWindow(slavePtr->tkwin, x, y, width, height);
|
||
}
|
||
if (abort) {
|
||
goto done;
|
||
}
|
||
|
||
/*
|
||
* Don't map the slave if the master isn't mapped: wait until
|
||
* the master gets mapped later.
|
||
*/
|
||
|
||
if (Tk_IsMapped(masterPtr->tkwin)) {
|
||
Tk_MapWindow(slavePtr->tkwin);
|
||
}
|
||
}
|
||
} else {
|
||
if ((width <= 0) || (height <= 0)) {
|
||
Tk_UnmaintainGeometry(slavePtr->tkwin, masterPtr->tkwin);
|
||
Tk_UnmapWindow(slavePtr->tkwin);
|
||
} else {
|
||
Tk_MaintainGeometry(slavePtr->tkwin, masterPtr->tkwin,
|
||
x, y, width, height);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Changes to the window's structure could cause almost anything to
|
||
* happen, including deleting the parent or child. If this happens,
|
||
* we'll be told to abort.
|
||
*/
|
||
|
||
if (abort) {
|
||
goto done;
|
||
}
|
||
}
|
||
|
||
done:
|
||
masterPtr->abortPtr = NULL;
|
||
Tcl_Release(masterPtr);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* XExpansion --
|
||
*
|
||
* Given a list of packed slaves, the first of which is packed on the
|
||
* left or right and is expandable, compute how much to expand the child.
|
||
*
|
||
* Results:
|
||
* The return value is the number of additional pixels to give to the
|
||
* child.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
XExpansion(
|
||
register Packer *slavePtr, /* First in list of remaining slaves. */
|
||
int cavityWidth) /* Horizontal space left for all remaining
|
||
* slaves. */
|
||
{
|
||
int numExpand, minExpand, curExpand;
|
||
int childWidth;
|
||
|
||
/*
|
||
* This function is tricky because windows packed top or bottom can be
|
||
* interspersed among expandable windows packed left or right. Scan
|
||
* through the list, keeping a running sum of the widths of all left and
|
||
* right windows (actually, count the cavity space not allocated) and a
|
||
* running count of all expandable left and right windows. At each top or
|
||
* bottom window, and at the end of the list, compute the expansion factor
|
||
* that seems reasonable at that point. Return the smallest factor seen at
|
||
* any of these points.
|
||
*/
|
||
|
||
minExpand = cavityWidth;
|
||
numExpand = 0;
|
||
for ( ; slavePtr != NULL; slavePtr = slavePtr->nextPtr) {
|
||
childWidth = Tk_ReqWidth(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padX + slavePtr->iPadX;
|
||
if ((slavePtr->side == TOP) || (slavePtr->side == BOTTOM)) {
|
||
if (numExpand) {
|
||
curExpand = (cavityWidth - childWidth)/numExpand;
|
||
if (curExpand < minExpand) {
|
||
minExpand = curExpand;
|
||
}
|
||
}
|
||
} else {
|
||
cavityWidth -= childWidth;
|
||
if (slavePtr->flags & EXPAND) {
|
||
numExpand++;
|
||
}
|
||
}
|
||
}
|
||
if (numExpand) {
|
||
curExpand = cavityWidth/numExpand;
|
||
if (curExpand < minExpand) {
|
||
minExpand = curExpand;
|
||
}
|
||
}
|
||
return (minExpand < 0) ? 0 : minExpand;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* YExpansion --
|
||
*
|
||
* Given a list of packed slaves, the first of which is packed on the top
|
||
* or bottom and is expandable, compute how much to expand the child.
|
||
*
|
||
* Results:
|
||
* The return value is the number of additional pixels to give to the
|
||
* child.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
YExpansion(
|
||
register Packer *slavePtr, /* First in list of remaining slaves. */
|
||
int cavityHeight) /* Vertical space left for all remaining
|
||
* slaves. */
|
||
{
|
||
int numExpand, minExpand, curExpand;
|
||
int childHeight;
|
||
|
||
/*
|
||
* See comments for XExpansion.
|
||
*/
|
||
|
||
minExpand = cavityHeight;
|
||
numExpand = 0;
|
||
for ( ; slavePtr != NULL; slavePtr = slavePtr->nextPtr) {
|
||
childHeight = Tk_ReqHeight(slavePtr->tkwin) + slavePtr->doubleBw
|
||
+ slavePtr->padY + slavePtr->iPadY;
|
||
if ((slavePtr->side == LEFT) || (slavePtr->side == RIGHT)) {
|
||
if (numExpand) {
|
||
curExpand = (cavityHeight - childHeight)/numExpand;
|
||
if (curExpand < minExpand) {
|
||
minExpand = curExpand;
|
||
}
|
||
}
|
||
} else {
|
||
cavityHeight -= childHeight;
|
||
if (slavePtr->flags & EXPAND) {
|
||
numExpand++;
|
||
}
|
||
}
|
||
}
|
||
if (numExpand) {
|
||
curExpand = cavityHeight/numExpand;
|
||
if (curExpand < minExpand) {
|
||
minExpand = curExpand;
|
||
}
|
||
}
|
||
return (minExpand < 0) ? 0 : minExpand;
|
||
}
|
||
|
||
/*
|
||
*------------------------------------------------------------------------
|
||
*
|
||
* GetPacker --
|
||
*
|
||
* This internal function is used to locate a Packer structure for a
|
||
* given window, creating one if one doesn't exist already.
|
||
*
|
||
* Results:
|
||
* The return value is a pointer to the Packer structure corresponding to
|
||
* tkwin.
|
||
*
|
||
* Side effects:
|
||
* A new packer structure may be created. If so, then a callback is set
|
||
* up to clean things up when the window is deleted.
|
||
*
|
||
*------------------------------------------------------------------------
|
||
*/
|
||
|
||
static Packer *
|
||
GetPacker(
|
||
Tk_Window tkwin) /* Token for window for which packer structure
|
||
* is desired. */
|
||
{
|
||
register Packer *packPtr;
|
||
Tcl_HashEntry *hPtr;
|
||
int isNew;
|
||
TkDisplay *dispPtr = ((TkWindow *) tkwin)->dispPtr;
|
||
|
||
if (!dispPtr->packInit) {
|
||
dispPtr->packInit = 1;
|
||
Tcl_InitHashTable(&dispPtr->packerHashTable, TCL_ONE_WORD_KEYS);
|
||
}
|
||
|
||
/*
|
||
* See if there's already packer for this window. If not, then create a
|
||
* new one.
|
||
*/
|
||
|
||
hPtr = Tcl_CreateHashEntry(&dispPtr->packerHashTable, (char *) tkwin,
|
||
&isNew);
|
||
if (!isNew) {
|
||
return Tcl_GetHashValue(hPtr);
|
||
}
|
||
packPtr = ckalloc(sizeof(Packer));
|
||
packPtr->tkwin = tkwin;
|
||
packPtr->masterPtr = NULL;
|
||
packPtr->nextPtr = NULL;
|
||
packPtr->slavePtr = NULL;
|
||
packPtr->side = TOP;
|
||
packPtr->anchor = TK_ANCHOR_CENTER;
|
||
packPtr->padX = packPtr->padY = 0;
|
||
packPtr->padLeft = packPtr->padTop = 0;
|
||
packPtr->iPadX = packPtr->iPadY = 0;
|
||
packPtr->doubleBw = 2*Tk_Changes(tkwin)->border_width;
|
||
packPtr->abortPtr = NULL;
|
||
packPtr->flags = 0;
|
||
Tcl_SetHashValue(hPtr, packPtr);
|
||
Tk_CreateEventHandler(tkwin, StructureNotifyMask,
|
||
PackStructureProc, packPtr);
|
||
return packPtr;
|
||
}
|
||
|
||
/*
|
||
*------------------------------------------------------------------------
|
||
*
|
||
* PackAfter --
|
||
*
|
||
* This function does most of the real work of adding one or more windows
|
||
* into the packing order for its master.
|
||
*
|
||
* Results:
|
||
* A standard Tcl return value.
|
||
*
|
||
* Side effects:
|
||
* The geometry of the specified windows may change, both now and again
|
||
* in the future.
|
||
*
|
||
*------------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
PackAfter(
|
||
Tcl_Interp *interp, /* Interpreter for error reporting. */
|
||
Packer *prevPtr, /* Pack windows in argv just after this
|
||
* window; NULL means pack as first child of
|
||
* masterPtr. */
|
||
Packer *masterPtr, /* Master in which to pack windows. */
|
||
int objc, /* Number of elements in objv. */
|
||
Tcl_Obj *const objv[]) /* Array of lists, each containing 2 elements:
|
||
* window name and side against which to
|
||
* pack. */
|
||
{
|
||
register Packer *packPtr;
|
||
Tk_Window tkwin, ancestor, parent;
|
||
Tcl_Obj **options;
|
||
int index, optionCount, c;
|
||
|
||
/*
|
||
* Iterate over all of the window specifiers, each consisting of two
|
||
* arguments. The first argument contains the window name and the
|
||
* additional arguments contain options such as "top" or "padx 20".
|
||
*/
|
||
|
||
for ( ; objc > 0; objc -= 2, objv += 2, prevPtr = packPtr) {
|
||
if (objc < 2) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"wrong # args: window \"%s\" should be followed by options",
|
||
Tcl_GetString(objv[0])));
|
||
Tcl_SetErrorCode(interp, "TCL", "WRONGARGS", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Find the packer for the window to be packed, and make sure that the
|
||
* window in which it will be packed is either its or a descendant of
|
||
* its parent.
|
||
*/
|
||
|
||
if (TkGetWindowFromObj(interp, masterPtr->tkwin, objv[0], &tkwin)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
parent = Tk_Parent(tkwin);
|
||
for (ancestor = masterPtr->tkwin; ; ancestor = Tk_Parent(ancestor)) {
|
||
if (ancestor == parent) {
|
||
break;
|
||
}
|
||
if (((Tk_FakeWin *) (ancestor))->flags & TK_TOP_HIERARCHY) {
|
||
badWindow:
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"can't pack %s inside %s", Tcl_GetString(objv[0]),
|
||
Tk_PathName(masterPtr->tkwin)));
|
||
Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "HIERARCHY", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
if (((Tk_FakeWin *) (tkwin))->flags & TK_TOP_HIERARCHY) {
|
||
goto badWindow;
|
||
}
|
||
if (tkwin == masterPtr->tkwin) {
|
||
goto badWindow;
|
||
}
|
||
packPtr = GetPacker(tkwin);
|
||
|
||
/*
|
||
* Process options for this window.
|
||
*/
|
||
|
||
if (Tcl_ListObjGetElements(interp, objv[1], &optionCount, &options)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
packPtr->side = TOP;
|
||
packPtr->anchor = TK_ANCHOR_CENTER;
|
||
packPtr->padX = packPtr->padY = 0;
|
||
packPtr->padLeft = packPtr->padTop = 0;
|
||
packPtr->iPadX = packPtr->iPadY = 0;
|
||
packPtr->flags &= ~(FILLX|FILLY|EXPAND);
|
||
packPtr->flags |= OLD_STYLE;
|
||
for (index = 0 ; index < optionCount; index++) {
|
||
Tcl_Obj *curOptPtr = options[index];
|
||
const char *curOpt = Tcl_GetString(curOptPtr);
|
||
size_t length = curOptPtr->length;
|
||
|
||
c = curOpt[0];
|
||
|
||
if ((c == 't')
|
||
&& (strncmp(curOpt, "top", length)) == 0) {
|
||
packPtr->side = TOP;
|
||
} else if ((c == 'b')
|
||
&& (strncmp(curOpt, "bottom", length)) == 0) {
|
||
packPtr->side = BOTTOM;
|
||
} else if ((c == 'l')
|
||
&& (strncmp(curOpt, "left", length)) == 0) {
|
||
packPtr->side = LEFT;
|
||
} else if ((c == 'r')
|
||
&& (strncmp(curOpt, "right", length)) == 0) {
|
||
packPtr->side = RIGHT;
|
||
} else if ((c == 'e')
|
||
&& (strncmp(curOpt, "expand", length)) == 0) {
|
||
packPtr->flags |= EXPAND;
|
||
} else if ((c == 'f')
|
||
&& (strcmp(curOpt, "fill")) == 0) {
|
||
packPtr->flags |= FILLX|FILLY;
|
||
} else if ((length == 5) && (strcmp(curOpt, "fillx")) == 0) {
|
||
packPtr->flags |= FILLX;
|
||
} else if ((length == 5) && (strcmp(curOpt, "filly")) == 0) {
|
||
packPtr->flags |= FILLY;
|
||
} else if ((c == 'p') && (strcmp(curOpt, "padx")) == 0) {
|
||
if (optionCount < (index+2)) {
|
||
missingPad:
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"wrong # args: \"%s\" option must be"
|
||
" followed by screen distance", curOpt));
|
||
Tcl_SetErrorCode(interp, "TK", "OLDPACK", "BAD_PARAMETER",
|
||
NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
if (TkParsePadAmount(interp, tkwin, options[index+1],
|
||
&packPtr->padLeft, &packPtr->padX) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
packPtr->padX /= 2;
|
||
packPtr->padLeft /= 2;
|
||
packPtr->iPadX = 0;
|
||
index++;
|
||
} else if ((c == 'p') && (strcmp(curOpt, "pady")) == 0) {
|
||
if (optionCount < (index+2)) {
|
||
goto missingPad;
|
||
}
|
||
if (TkParsePadAmount(interp, tkwin, options[index+1],
|
||
&packPtr->padTop, &packPtr->padY) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
packPtr->padY /= 2;
|
||
packPtr->padTop /= 2;
|
||
packPtr->iPadY = 0;
|
||
index++;
|
||
} else if ((c == 'f') && (length > 1)
|
||
&& (strncmp(curOpt, "frame", (size_t) length) == 0)) {
|
||
if (optionCount < (index+2)) {
|
||
Tcl_SetObjResult(interp, Tcl_NewStringObj(
|
||
"wrong # args: \"frame\""
|
||
" option must be followed by anchor point", -1));
|
||
Tcl_SetErrorCode(interp, "TK", "OLDPACK", "BAD_PARAMETER",
|
||
NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tk_GetAnchorFromObj(interp, options[index+1],
|
||
&packPtr->anchor) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
index++;
|
||
} else {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"bad option \"%s\": should be top, bottom, left,"
|
||
" right, expand, fill, fillx, filly, padx, pady, or"
|
||
" frame", curOpt));
|
||
Tcl_SetErrorCode(interp, "TK", "OLDPACK", "BAD_PARAMETER",
|
||
NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
|
||
if (packPtr != prevPtr) {
|
||
/*
|
||
* Unpack this window if it's currently packed.
|
||
*/
|
||
|
||
if (packPtr->masterPtr != NULL) {
|
||
if ((packPtr->masterPtr != masterPtr) &&
|
||
(packPtr->masterPtr->tkwin
|
||
!= Tk_Parent(packPtr->tkwin))) {
|
||
Tk_UnmaintainGeometry(packPtr->tkwin,
|
||
packPtr->masterPtr->tkwin);
|
||
}
|
||
Unlink(packPtr);
|
||
}
|
||
|
||
/*
|
||
* Add the window in the correct place in its master's packing
|
||
* order, then make sure that the window is managed by us.
|
||
*/
|
||
|
||
packPtr->masterPtr = masterPtr;
|
||
if (prevPtr == NULL) {
|
||
packPtr->nextPtr = masterPtr->slavePtr;
|
||
masterPtr->slavePtr = packPtr;
|
||
} else {
|
||
packPtr->nextPtr = prevPtr->nextPtr;
|
||
prevPtr->nextPtr = packPtr;
|
||
}
|
||
Tk_ManageGeometry(tkwin, &packerType, packPtr);
|
||
|
||
if (!(masterPtr->flags & DONT_PROPAGATE)) {
|
||
if (TkSetGeometryMaster(interp, masterPtr->tkwin, "pack")
|
||
!= TCL_OK) {
|
||
Tk_ManageGeometry(tkwin, NULL, NULL);
|
||
Unlink(packPtr);
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr->flags |= ALLOCED_MASTER;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Arrange for the master to be re-packed at the first idle moment.
|
||
*/
|
||
|
||
if (masterPtr->abortPtr != NULL) {
|
||
*masterPtr->abortPtr = 1;
|
||
}
|
||
if (!(masterPtr->flags & REQUESTED_REPACK)) {
|
||
masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, masterPtr);
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* Unlink --
|
||
*
|
||
* Remove a packer from its master's list of slaves.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* The master will be scheduled for repacking.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
Unlink(
|
||
register Packer *packPtr) /* Window to unlink. */
|
||
{
|
||
register Packer *masterPtr, *packPtr2;
|
||
|
||
masterPtr = packPtr->masterPtr;
|
||
if (masterPtr == NULL) {
|
||
return;
|
||
}
|
||
if (masterPtr->slavePtr == packPtr) {
|
||
masterPtr->slavePtr = packPtr->nextPtr;
|
||
} else {
|
||
for (packPtr2 = masterPtr->slavePtr; ; packPtr2 = packPtr2->nextPtr) {
|
||
if (packPtr2 == NULL) {
|
||
Tcl_Panic("Unlink couldn't find previous window");
|
||
}
|
||
if (packPtr2->nextPtr == packPtr) {
|
||
packPtr2->nextPtr = packPtr->nextPtr;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (!(masterPtr->flags & REQUESTED_REPACK)) {
|
||
masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, masterPtr);
|
||
}
|
||
if (masterPtr->abortPtr != NULL) {
|
||
*masterPtr->abortPtr = 1;
|
||
}
|
||
|
||
packPtr->masterPtr = NULL;
|
||
|
||
/*
|
||
* If we have emptied this master from slaves it means we are no longer
|
||
* handling it and should mark it as free.
|
||
*/
|
||
|
||
if (masterPtr->slavePtr == NULL && masterPtr->flags & ALLOCED_MASTER) {
|
||
TkFreeGeometryMaster(masterPtr->tkwin, "pack");
|
||
masterPtr->flags &= ~ALLOCED_MASTER;
|
||
}
|
||
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* DestroyPacker --
|
||
*
|
||
* This function is invoked by Tcl_EventuallyFree or Tcl_Release to clean
|
||
* up the internal structure of a packer at a safe time (when no-one is
|
||
* using it anymore).
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* Everything associated with the packer is freed up.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
DestroyPacker(
|
||
void *memPtr) /* Info about packed window that is now
|
||
* dead. */
|
||
{
|
||
register Packer *packPtr = memPtr;
|
||
|
||
ckfree(packPtr);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* PackStructureProc --
|
||
*
|
||
* This function is invoked by the Tk event dispatcher in response to
|
||
* StructureNotify events.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* If a window was just deleted, clean up all its packer-related
|
||
* information. If it was just resized, repack its slaves, if any.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static void
|
||
PackStructureProc(
|
||
ClientData clientData, /* Our information about window referred to by
|
||
* eventPtr. */
|
||
XEvent *eventPtr) /* Describes what just happened. */
|
||
{
|
||
register Packer *packPtr = clientData;
|
||
|
||
if (eventPtr->type == ConfigureNotify) {
|
||
if ((packPtr->slavePtr != NULL)
|
||
&& !(packPtr->flags & REQUESTED_REPACK)) {
|
||
packPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, packPtr);
|
||
}
|
||
if ((packPtr->masterPtr != NULL)
|
||
&& (packPtr->doubleBw != 2*Tk_Changes(packPtr->tkwin)->border_width)) {
|
||
if (!(packPtr->masterPtr->flags & REQUESTED_REPACK)) {
|
||
packPtr->doubleBw = 2*Tk_Changes(packPtr->tkwin)->border_width;
|
||
packPtr->masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, packPtr->masterPtr);
|
||
}
|
||
}
|
||
} else if (eventPtr->type == DestroyNotify) {
|
||
register Packer *slavePtr, *nextPtr;
|
||
|
||
if (packPtr->masterPtr != NULL) {
|
||
Unlink(packPtr);
|
||
}
|
||
|
||
for (slavePtr = packPtr->slavePtr; slavePtr != NULL;
|
||
slavePtr = nextPtr) {
|
||
Tk_ManageGeometry(slavePtr->tkwin, NULL, NULL);
|
||
Tk_UnmapWindow(slavePtr->tkwin);
|
||
slavePtr->masterPtr = NULL;
|
||
nextPtr = slavePtr->nextPtr;
|
||
slavePtr->nextPtr = NULL;
|
||
}
|
||
|
||
if (packPtr->tkwin != NULL) {
|
||
TkDisplay *dispPtr = ((TkWindow *) packPtr->tkwin)->dispPtr;
|
||
Tcl_DeleteHashEntry(Tcl_FindHashEntry(&dispPtr->packerHashTable,
|
||
(char *) packPtr->tkwin));
|
||
}
|
||
|
||
if (packPtr->flags & REQUESTED_REPACK) {
|
||
Tcl_CancelIdleCall(ArrangePacking, packPtr);
|
||
}
|
||
packPtr->tkwin = NULL;
|
||
Tcl_EventuallyFree(packPtr, (Tcl_FreeProc *) DestroyPacker);
|
||
} else if (eventPtr->type == MapNotify) {
|
||
/*
|
||
* When a master gets mapped, must redo the geometry computation so
|
||
* that all of its slaves get remapped.
|
||
*/
|
||
|
||
if ((packPtr->slavePtr != NULL)
|
||
&& !(packPtr->flags & REQUESTED_REPACK)) {
|
||
packPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, packPtr);
|
||
}
|
||
} else if (eventPtr->type == UnmapNotify) {
|
||
register Packer *packPtr2;
|
||
|
||
/*
|
||
* Unmap all of the slaves when the master gets unmapped, so that they
|
||
* don't bother to keep redisplaying themselves.
|
||
*/
|
||
|
||
for (packPtr2 = packPtr->slavePtr; packPtr2 != NULL;
|
||
packPtr2 = packPtr2->nextPtr) {
|
||
Tk_UnmapWindow(packPtr2->tkwin);
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ConfigureSlaves --
|
||
*
|
||
* This implements the guts of the "pack configure" command. Given a list
|
||
* of slaves and configuration options, it arranges for the packer to
|
||
* manage the slaves and sets the specified options.
|
||
*
|
||
* Results:
|
||
* TCL_OK is returned if all went well. Otherwise, TCL_ERROR is returned
|
||
* and the interp's result is set to contain an error message.
|
||
*
|
||
* Side effects:
|
||
* Slave windows get taken over by the packer.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
ConfigureSlaves(
|
||
Tcl_Interp *interp, /* Interpreter for error reporting. */
|
||
Tk_Window tkwin, /* Any window in application containing
|
||
* slaves. Used to look up slave names. */
|
||
int objc, /* Number of elements in argv. */
|
||
Tcl_Obj *const objv[]) /* Argument objects: contains one or more
|
||
* window names followed by any number of
|
||
* "option value" pairs. Caller must make sure
|
||
* that there is at least one window name. */
|
||
{
|
||
Packer *masterPtr, *slavePtr, *prevPtr, *otherPtr;
|
||
Tk_Window other, slave, parent, ancestor;
|
||
int i, j, numWindows, tmp, positionGiven;
|
||
const char *string;
|
||
static const char *const optionStrings[] = {
|
||
"-after", "-anchor", "-before", "-expand", "-fill",
|
||
"-in", "-ipadx", "-ipady", "-padx", "-pady", "-side", NULL };
|
||
enum options {
|
||
CONF_AFTER, CONF_ANCHOR, CONF_BEFORE, CONF_EXPAND, CONF_FILL,
|
||
CONF_IN, CONF_IPADX, CONF_IPADY, CONF_PADX, CONF_PADY, CONF_SIDE };
|
||
int index, side;
|
||
|
||
/*
|
||
* Find out how many windows are specified.
|
||
*/
|
||
|
||
for (numWindows = 0; numWindows < objc; numWindows++) {
|
||
string = Tcl_GetString(objv[numWindows]);
|
||
if (string[0] != '.') {
|
||
break;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Iterate over all of the slave windows, parsing the configuration
|
||
* options for each slave. It's a bit wasteful to re-parse the options for
|
||
* each slave, but things get too messy if we try to parse the arguments
|
||
* just once at the beginning. For example, if a slave already is packed
|
||
* we want to just change a few existing values without resetting
|
||
* everything. If there are multiple windows, the -after, -before, and -in
|
||
* options only get processed for the first window.
|
||
*/
|
||
|
||
masterPtr = NULL;
|
||
prevPtr = NULL;
|
||
positionGiven = 0;
|
||
for (j = 0; j < numWindows; j++) {
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[j], &slave) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tk_TopWinHierarchy(slave)) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"can't pack \"%s\": it's a top-level window",
|
||
Tcl_GetString(objv[j])));
|
||
Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "TOPLEVEL", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
slavePtr = GetPacker(slave);
|
||
slavePtr->flags &= ~OLD_STYLE;
|
||
|
||
/*
|
||
* If the slave isn't currently packed, reset all of its configuration
|
||
* information to default values (there could be old values left from
|
||
* a previous packing).
|
||
*/
|
||
|
||
if (slavePtr->masterPtr == NULL) {
|
||
slavePtr->side = TOP;
|
||
slavePtr->anchor = TK_ANCHOR_CENTER;
|
||
slavePtr->padX = slavePtr->padY = 0;
|
||
slavePtr->padLeft = slavePtr->padTop = 0;
|
||
slavePtr->iPadX = slavePtr->iPadY = 0;
|
||
slavePtr->flags &= ~(FILLX|FILLY|EXPAND);
|
||
}
|
||
|
||
for (i = numWindows; i < objc; i+=2) {
|
||
if ((i+2) > objc) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"extra option \"%s\" (option with no value?)",
|
||
Tcl_GetString(objv[i])));
|
||
Tcl_SetErrorCode(interp, "TK", "PACK", "BAD_PARAMETER", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
if (Tcl_GetIndexFromObjStruct(interp, objv[i], optionStrings,
|
||
sizeof(char *), "option", 0, &index) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
switch ((enum options) index) {
|
||
case CONF_AFTER:
|
||
if (j == 0) {
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[i+1], &other)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
prevPtr = GetPacker(other);
|
||
if (prevPtr->masterPtr == NULL) {
|
||
notPacked:
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"window \"%s\" isn't packed",
|
||
Tcl_GetString(objv[i+1])));
|
||
Tcl_SetErrorCode(interp, "TK", "PACK", "NOT_PACKED",
|
||
NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr = prevPtr->masterPtr;
|
||
positionGiven = 1;
|
||
}
|
||
break;
|
||
case CONF_ANCHOR:
|
||
if (Tk_GetAnchorFromObj(interp, objv[i+1], &slavePtr->anchor)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case CONF_BEFORE:
|
||
if (j == 0) {
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[i+1], &other)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
otherPtr = GetPacker(other);
|
||
if (otherPtr->masterPtr == NULL) {
|
||
goto notPacked;
|
||
}
|
||
masterPtr = otherPtr->masterPtr;
|
||
prevPtr = masterPtr->slavePtr;
|
||
if (prevPtr == otherPtr) {
|
||
prevPtr = NULL;
|
||
} else {
|
||
while (prevPtr->nextPtr != otherPtr) {
|
||
prevPtr = prevPtr->nextPtr;
|
||
}
|
||
}
|
||
positionGiven = 1;
|
||
}
|
||
break;
|
||
case CONF_EXPAND:
|
||
if (Tcl_GetBooleanFromObj(interp, objv[i+1], &tmp) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
slavePtr->flags &= ~EXPAND;
|
||
if (tmp) {
|
||
slavePtr->flags |= EXPAND;
|
||
}
|
||
break;
|
||
case CONF_FILL:
|
||
string = Tcl_GetString(objv[i+1]);
|
||
if (strcmp(string, "none") == 0) {
|
||
slavePtr->flags &= ~(FILLX|FILLY);
|
||
} else if (strcmp(string, "x") == 0) {
|
||
slavePtr->flags = (slavePtr->flags & ~FILLY) | FILLX;
|
||
} else if (strcmp(string, "y") == 0) {
|
||
slavePtr->flags = (slavePtr->flags & ~FILLX) | FILLY;
|
||
} else if (strcmp(string, "both") == 0) {
|
||
slavePtr->flags |= FILLX|FILLY;
|
||
} else {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"bad fill style \"%s\": must be "
|
||
"none, x, y, or both", string));
|
||
Tcl_SetErrorCode(interp, "TK", "VALUE", "FILL", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case CONF_IN:
|
||
if (j == 0) {
|
||
if (TkGetWindowFromObj(interp, tkwin, objv[i+1], &other)
|
||
!= TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr = GetPacker(other);
|
||
prevPtr = masterPtr->slavePtr;
|
||
if (prevPtr != NULL) {
|
||
while (prevPtr->nextPtr != NULL) {
|
||
prevPtr = prevPtr->nextPtr;
|
||
}
|
||
}
|
||
positionGiven = 1;
|
||
}
|
||
break;
|
||
case CONF_IPADX:
|
||
if ((Tk_GetPixelsFromObj(interp, slave, objv[i+1], &tmp)
|
||
!= TCL_OK) || (tmp < 0)) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"bad ipadx value \"%s\": must be positive screen"
|
||
" distance", Tcl_GetString(objv[i+1])));
|
||
Tcl_SetErrorCode(interp, "TK", "VALUE", "INT_PAD", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
slavePtr->iPadX = tmp * 2;
|
||
break;
|
||
case CONF_IPADY:
|
||
if ((Tk_GetPixelsFromObj(interp, slave, objv[i+1], &tmp)
|
||
!= TCL_OK) || (tmp < 0)) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"bad ipady value \"%s\": must be positive screen"
|
||
" distance", Tcl_GetString(objv[i+1])));
|
||
Tcl_SetErrorCode(interp, "TK", "VALUE", "INT_PAD", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
slavePtr->iPadY = tmp * 2;
|
||
break;
|
||
case CONF_PADX:
|
||
if (TkParsePadAmount(interp, slave, objv[i+1],
|
||
&slavePtr->padLeft, &slavePtr->padX) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case CONF_PADY:
|
||
if (TkParsePadAmount(interp, slave, objv[i+1],
|
||
&slavePtr->padTop, &slavePtr->padY) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
break;
|
||
case CONF_SIDE:
|
||
if (Tcl_GetIndexFromObjStruct(interp, objv[i+1], sideNames,
|
||
sizeof(char *), "side", TCL_EXACT, &side) != TCL_OK) {
|
||
return TCL_ERROR;
|
||
}
|
||
slavePtr->side = (Side) side;
|
||
break;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* If no position in a packing list was specified and the slave is
|
||
* already packed, then leave it in its current location in its
|
||
* current packing list.
|
||
*/
|
||
|
||
if (!positionGiven && (slavePtr->masterPtr != NULL)) {
|
||
masterPtr = slavePtr->masterPtr;
|
||
goto scheduleLayout;
|
||
}
|
||
|
||
/*
|
||
* If the slave is going to be put back after itself or the same -in
|
||
* window is passed in again, then just skip the whole operation,
|
||
* since it won't work anyway.
|
||
*/
|
||
|
||
if (prevPtr == slavePtr) {
|
||
masterPtr = slavePtr->masterPtr;
|
||
goto scheduleLayout;
|
||
}
|
||
|
||
/*
|
||
* If none of the "-in", "-before", or "-after" options has been
|
||
* specified, arrange for the slave to go at the end of the order for
|
||
* its parent.
|
||
*/
|
||
|
||
if (!positionGiven) {
|
||
masterPtr = GetPacker(Tk_Parent(slave));
|
||
prevPtr = masterPtr->slavePtr;
|
||
if (prevPtr != NULL) {
|
||
while (prevPtr->nextPtr != NULL) {
|
||
prevPtr = prevPtr->nextPtr;
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Make sure that the slave's parent is either the master or an
|
||
* ancestor of the master, and that the master and slave aren't the
|
||
* same.
|
||
*/
|
||
|
||
parent = Tk_Parent(slave);
|
||
for (ancestor = masterPtr->tkwin; ; ancestor = Tk_Parent(ancestor)) {
|
||
if (ancestor == parent) {
|
||
break;
|
||
}
|
||
if (Tk_TopWinHierarchy(ancestor)) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"can't pack %s inside %s", Tcl_GetString(objv[j]),
|
||
Tk_PathName(masterPtr->tkwin)));
|
||
Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "HIERARCHY", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
}
|
||
if (slave == masterPtr->tkwin) {
|
||
Tcl_SetObjResult(interp, Tcl_ObjPrintf(
|
||
"can't pack %s inside itself", Tcl_GetString(objv[j])));
|
||
Tcl_SetErrorCode(interp, "TK", "GEOMETRY", "SELF", NULL);
|
||
return TCL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Unpack the slave if it's currently packed, then position it after
|
||
* prevPtr.
|
||
*/
|
||
|
||
if (slavePtr->masterPtr != NULL) {
|
||
if ((slavePtr->masterPtr != masterPtr) &&
|
||
(slavePtr->masterPtr->tkwin
|
||
!= Tk_Parent(slavePtr->tkwin))) {
|
||
Tk_UnmaintainGeometry(slavePtr->tkwin,
|
||
slavePtr->masterPtr->tkwin);
|
||
}
|
||
Unlink(slavePtr);
|
||
}
|
||
|
||
slavePtr->masterPtr = masterPtr;
|
||
if (prevPtr == NULL) {
|
||
slavePtr->nextPtr = masterPtr->slavePtr;
|
||
masterPtr->slavePtr = slavePtr;
|
||
} else {
|
||
slavePtr->nextPtr = prevPtr->nextPtr;
|
||
prevPtr->nextPtr = slavePtr;
|
||
}
|
||
Tk_ManageGeometry(slave, &packerType, slavePtr);
|
||
prevPtr = slavePtr;
|
||
|
||
if (!(masterPtr->flags & DONT_PROPAGATE)) {
|
||
if (TkSetGeometryMaster(interp, masterPtr->tkwin, "pack")
|
||
!= TCL_OK) {
|
||
Tk_ManageGeometry(slave, NULL, NULL);
|
||
Unlink(slavePtr);
|
||
return TCL_ERROR;
|
||
}
|
||
masterPtr->flags |= ALLOCED_MASTER;
|
||
}
|
||
|
||
/*
|
||
* Arrange for the master to be re-packed at the first idle moment.
|
||
*/
|
||
|
||
scheduleLayout:
|
||
if (masterPtr->abortPtr != NULL) {
|
||
*masterPtr->abortPtr = 1;
|
||
}
|
||
if (!(masterPtr->flags & REQUESTED_REPACK)) {
|
||
masterPtr->flags |= REQUESTED_REPACK;
|
||
Tcl_DoWhenIdle(ArrangePacking, masterPtr);
|
||
}
|
||
}
|
||
return TCL_OK;
|
||
}
|
||
|
||
/*
|
||
* Local Variables:
|
||
* mode: c
|
||
* c-basic-offset: 4
|
||
* fill-column: 78
|
||
* End:
|
||
*/
|