Tk Source Code

#ifdef _WIN32
#include "tkWinInt.h"
#elif defined(MAC_OSX_TK)
#include "tkMacOSXInt.h"
#else
#include "tkUnixInt.h"
#endif
#undef Tcl_ScanElement
#undef Tcl_ConvertElement

/*
 * File structure:
 *
 * Structure definitions and static variables.
 *
 * Init/Free this package.

#ifdef _WIN32
#include "tkWinInt.h"
#elif defined(MAC_OSX_TK)
#include "tkMacOSXInt.h"
#else
#include "tkUnixInt.h"
#endif



/*
 * File structure:
 *
 * Structure definitions and static variables.
 *
 * Init/Free this package.

 */

static int
GetByte(
    Tcl_Channel chan)	/* The channel we read from. */
{
    char buffer;
    int size;

    size = Tcl_Read(chan, &buffer, 1);
    if (size <= 0) {
	return EOF;
    } else {
	return buffer;
    }
}
 
/*

 */

static int
GetByte(
    Tcl_Channel chan)	/* The channel we read from. */
{
    char buffer;
    size_t size;

    size = Tcl_Read(chan, &buffer, 1);
    if ((size + 1) < 2) {
	return EOF;
    } else {
	return buffer;
    }
}
 
/*

} GIFImageConfig;

/*
 * Type of a function used to do the writing to a file or buffer when
 * serializing in the GIF format.
 */

typedef int (WriteBytesFunc) (ClientData clientData, const char *bytes,
			    int byteCount);

/*
 * The format record for the GIF file format:
 */

static int		FileMatchGIF(Tcl_Channel chan, const char *fileName,
			    Tcl_Obj *format, int *widthPtr, int *heightPtr,
................................................................................
static size_t		Fread(GIFImageConfig *gifConfPtr, unsigned char *dst,
			    size_t size, size_t count, Tcl_Channel chan);
static size_t		Mread(unsigned char *dst, size_t size, size_t count,
			    MFile *handle);
static int		Mgetc(MFile *handle);
static int		char64(int c);
static void		mInit(unsigned char *string, MFile *handle,
			    int length);

/*
 * Types, defines and variables needed to write and compress a GIF.
 */

#define LSB(a)		((unsigned char) (((short)(a)) & 0x00FF))
#define MSB(a)		((unsigned char) (((short)(a)) >> 8))
................................................................................
 *----------------------------------------------------------------------
 */

static void
mInit(
    unsigned char *string,	/* string containing initial mmencoded data */
    MFile *handle,		/* mmdecode "file" handle */
    int length)			/* Number of bytes in string */
{
    handle->data = string;
    handle->state = 0;
    handle->c = 0;
    handle->length = length;
}
 
................................................................................
    if (result == TCL_OK) {
	Tcl_SetObjResult(interp, objPtr);
    }
    Tcl_DecrRefCount(objPtr);
    return result;
}

static int
WriteToChannel(
    ClientData clientData,
    const char *bytes,
    int byteCount)
{
    Tcl_Channel handle = clientData;

    return Tcl_Write(handle, bytes, byteCount);
}

static int
WriteToByteArray(
    ClientData clientData,
    const char *bytes,
    int byteCount)
{
    Tcl_Obj *objPtr = clientData;
    Tcl_Obj *tmpObj = Tcl_NewByteArrayObj((unsigned char *) bytes, byteCount);

    Tcl_IncrRefCount(tmpObj);
    Tcl_AppendObjToObj(objPtr, tmpObj);
    Tcl_DecrRefCount(tmpObj);

} GIFImageConfig;

/*
 * Type of a function used to do the writing to a file or buffer when
 * serializing in the GIF format.
 */

typedef size_t (WriteBytesFunc) (ClientData clientData, const char *bytes,
			    size_t byteCount);

/*
 * The format record for the GIF file format:
 */

static int		FileMatchGIF(Tcl_Channel chan, const char *fileName,
			    Tcl_Obj *format, int *widthPtr, int *heightPtr,
................................................................................
static size_t		Fread(GIFImageConfig *gifConfPtr, unsigned char *dst,
			    size_t size, size_t count, Tcl_Channel chan);
static size_t		Mread(unsigned char *dst, size_t size, size_t count,
			    MFile *handle);
static int		Mgetc(MFile *handle);
static int		char64(int c);
static void		mInit(unsigned char *string, MFile *handle,
			    size_t length);

/*
 * Types, defines and variables needed to write and compress a GIF.
 */

#define LSB(a)		((unsigned char) (((short)(a)) & 0x00FF))
#define MSB(a)		((unsigned char) (((short)(a)) >> 8))
................................................................................
 *----------------------------------------------------------------------
 */

static void
mInit(
    unsigned char *string,	/* string containing initial mmencoded data */
    MFile *handle,		/* mmdecode "file" handle */
    size_t length)			/* Number of bytes in string */
{
    handle->data = string;
    handle->state = 0;
    handle->c = 0;
    handle->length = length;
}
 
................................................................................
    if (result == TCL_OK) {
	Tcl_SetObjResult(interp, objPtr);
    }
    Tcl_DecrRefCount(objPtr);
    return result;
}

static size_t
WriteToChannel(
    ClientData clientData,
    const char *bytes,
    size_t byteCount)
{
    Tcl_Channel handle = clientData;

    return Tcl_Write(handle, bytes, byteCount);
}

static size_t
WriteToByteArray(
    ClientData clientData,
    const char *bytes,
    size_t byteCount)
{
    Tcl_Obj *objPtr = clientData;
    Tcl_Obj *tmpObj = Tcl_NewByteArrayObj((unsigned char *) bytes, byteCount);

    Tcl_IncrRefCount(tmpObj);
    Tcl_AppendObjToObj(objPtr, tmpObj);
    Tcl_DecrRefCount(tmpObj);

				 * image to be written to. */
    int width, int height,	/* Dimensions of block of photo image to be
				 * written to. */
    int srcX, int srcY)		/* Coordinates of top-left pixel to be used in
				 * image being read. */
{
    int fileWidth, fileHeight, maxIntensity;
    int nLines, nBytes, h, type, count, bytesPerChannel = 1;

    unsigned char *pixelPtr;
    Tk_PhotoImageBlock block;

    type = ReadPPMFileHeader(chan, &fileWidth, &fileHeight, &maxIntensity);
    if (type == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"couldn't read raw PPM header from file \"%s\"", fileName));
................................................................................
FileWritePPM(
    Tcl_Interp *interp,
    const char *fileName,
    Tcl_Obj *format,
    Tk_PhotoImageBlock *blockPtr)
{
    Tcl_Channel chan;
    int w, h, greenOffset, blueOffset, nBytes;

    unsigned char *pixelPtr, *pixLinePtr;
    char header[16 + TCL_INTEGER_SPACE * 2];

    chan = Tcl_OpenFileChannel(interp, fileName, "w", 0666);
    if (chan == NULL) {
	return TCL_ERROR;
    }
................................................................................
    pixLinePtr = blockPtr->pixelPtr + blockPtr->offset[0];
    greenOffset = blockPtr->offset[1] - blockPtr->offset[0];
    blueOffset = blockPtr->offset[2] - blockPtr->offset[0];

    if ((greenOffset == 1) && (blueOffset == 2) && (blockPtr->pixelSize == 3)
	    && (blockPtr->pitch == (blockPtr->width * 3))) {
	nBytes = blockPtr->height * blockPtr->pitch;
	if (Tcl_Write(chan, (char *) pixLinePtr, nBytes) != nBytes) {
	    goto writeerror;
	}
    } else {
	for (h = blockPtr->height; h > 0; h--) {
	    pixelPtr = pixLinePtr;
	    for (w = blockPtr->width; w > 0; w--) {
		if (    Tcl_Write(chan,(char *)&pixelPtr[0], 1) == -1 ||
			Tcl_Write(chan,(char *)&pixelPtr[greenOffset],1)==-1 ||
			Tcl_Write(chan,(char *)&pixelPtr[blueOffset],1) ==-1) {
		    goto writeerror;
		}
		pixelPtr += blockPtr->pixelSize;
	    }
	    pixLinePtr += blockPtr->pitch;
	}
    }

				 * image to be written to. */
    int width, int height,	/* Dimensions of block of photo image to be
				 * written to. */
    int srcX, int srcY)		/* Coordinates of top-left pixel to be used in
				 * image being read. */
{
    int fileWidth, fileHeight, maxIntensity;
    int nLines, h, type, bytesPerChannel = 1;
    size_t nBytes, count;
    unsigned char *pixelPtr;
    Tk_PhotoImageBlock block;

    type = ReadPPMFileHeader(chan, &fileWidth, &fileHeight, &maxIntensity);
    if (type == 0) {
	Tcl_SetObjResult(interp, Tcl_ObjPrintf(
		"couldn't read raw PPM header from file \"%s\"", fileName));
................................................................................
FileWritePPM(
    Tcl_Interp *interp,
    const char *fileName,
    Tcl_Obj *format,
    Tk_PhotoImageBlock *blockPtr)
{
    Tcl_Channel chan;
    int w, h, greenOffset, blueOffset;
    size_t nBytes;
    unsigned char *pixelPtr, *pixLinePtr;
    char header[16 + TCL_INTEGER_SPACE * 2];

    chan = Tcl_OpenFileChannel(interp, fileName, "w", 0666);
    if (chan == NULL) {
	return TCL_ERROR;
    }
................................................................................
    pixLinePtr = blockPtr->pixelPtr + blockPtr->offset[0];
    greenOffset = blockPtr->offset[1] - blockPtr->offset[0];
    blueOffset = blockPtr->offset[2] - blockPtr->offset[0];

    if ((greenOffset == 1) && (blueOffset == 2) && (blockPtr->pixelSize == 3)
	    && (blockPtr->pitch == (blockPtr->width * 3))) {
	nBytes = blockPtr->height * blockPtr->pitch;
	if ((size_t)Tcl_Write(chan, (char *) pixLinePtr, nBytes) != nBytes) {
	    goto writeerror;
	}
    } else {
	for (h = blockPtr->height; h > 0; h--) {
	    pixelPtr = pixLinePtr;
	    for (w = blockPtr->width; w > 0; w--) {
		if ((size_t)Tcl_Write(chan,(char *)&pixelPtr[0], 1) == (size_t)-1 ||
			(size_t)Tcl_Write(chan,(char *)&pixelPtr[greenOffset],1)==(size_t)-1 ||
			(size_t)Tcl_Write(chan,(char *)&pixelPtr[blueOffset],1) ==(size_t)-1) {
		    goto writeerror;
		}
		pixelPtr += blockPtr->pixelSize;
	    }
	    pixLinePtr += blockPtr->pitch;
	}
    }

/*
 * Real definition of some events. Note that these events come from outside
 * but have internally generated pieces added to them.
 */

typedef struct {
    XKeyEvent keyEvent;		/* The real event from X11. */
    char *charValuePtr;		/* A pointer to a string that holds the key's
				 * %A substitution text (before backslash
				 * adding), or NULL if that has not been
				 * computed yet. If non-NULL, this string was
				 * allocated with ckalloc(). */
    int charValueLen;		/* Length of string in charValuePtr when that
				 * is non-NULL. */
    KeySym keysym;		/* Key symbol computed after input methods
				 * have been invoked */
} TkKeyEvent;

/*
 * Flags passed to TkpMakeMenuWindow's 'transient' argument.

/*
 * Real definition of some events. Note that these events come from outside
 * but have internally generated pieces added to them.
 */

typedef struct {
    XKeyEvent keyEvent;	/* The real event from X11. */
    char *charValuePtr;	/* A pointer to a string that holds the key's
				 * %A substitution text (before backslash
				 * adding), or NULL if that has not been
				 * computed yet. If non-NULL, this string was
				 * allocated with ckalloc(). */
    size_t charValueLen;	/* Length of string in charValuePtr when that
				 * is non-NULL. */
    KeySym keysym;		/* Key symbol computed after input methods
				 * have been invoked */
} TkKeyEvent;

/*
 * Flags passed to TkpMakeMenuWindow's 'transient' argument.

#include <stdio.h>
#include <string.h>
#ifdef NO_STDLIB_H
#   include "../compat/stdlib.h"
#else
#   include <stdlib.h>
#endif
#undef Tcl_Gets
#undef Tcl_WriteObj
#undef Tcl_WriteChars

extern int TkCygwinMainEx(int, char **, Tcl_AppInitProc *, Tcl_Interp *);

/*
 * The default prompt used when the user has not overridden it.
 */

#include <stdio.h>
#include <string.h>
#ifdef NO_STDLIB_H
#   include "../compat/stdlib.h"
#else
#   include <stdlib.h>
#endif




extern int TkCygwinMainEx(int, char **, Tcl_AppInitProc *, Tcl_Interp *);

/*
 * The default prompt used when the user has not overridden it.
 */

 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"
#undef Tcl_ReadChars

/*
 * The option database is stored as one tree for each main window. Each name
 * or class field in an option is associated with a node or leaf of the tree.
 * For example, the options "x.y.z" and "x.y*a" each correspond to three nodes
 * in the tree; they share the nodes "x" and "x.y", but have different leaf
 * nodes. One of the following structures exists for each node or leaf in the

 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

#include "tkInt.h"


/*
 * The option database is stored as one tree for each main window. Each name
 * or class field in an option is associated with a node or leaf of the tree.
 * For example, the options "x.y.z" and "x.y*a" each correspond to three nodes
 * in the tree; they share the nodes "x" and "x.y", but have different leaf
 * nodes. One of the following structures exists for each node or leaf in the

    int *intPtr)		/* Filled in with number of pages or lines to
				 * scroll, if any. */
{
    const char *arg = Tcl_GetString(objv[2]);
    size_t length = objv[2]->length;

#define ArgPfxEq(str) \
	((arg[0] == str[0]) && !strncmp(arg, str, (unsigned)length))

    if (ArgPfxEq("moveto")) {
	if (objc != 4) {
	    Tcl_WrongNumArgs(interp, 2, objv, "moveto fraction");
	    return TK_SCROLL_ERROR;
	}
	if (Tcl_GetDoubleFromObj(interp, objv[3], dblPtr) != TCL_OK) {

    int *intPtr)		/* Filled in with number of pages or lines to
				 * scroll, if any. */
{
    const char *arg = Tcl_GetString(objv[2]);
    size_t length = objv[2]->length;

#define ArgPfxEq(str) \
	((arg[0] == str[0]) && !strncmp(arg, str, length))

    if (ArgPfxEq("moveto")) {
	if (objc != 4) {
	    Tcl_WrongNumArgs(interp, 2, objv, "moveto fraction");
	    return TK_SCROLL_ERROR;
	}
	if (Tcl_GetDoubleFromObj(interp, objv[3], dblPtr) != TCL_OK) {

static void StateSpecUpdateString(Tcl_Obj *objPtr)
{
    unsigned int onbits = (objPtr->internalRep.longValue & 0xFFFF0000) >> 16;
    unsigned int offbits = objPtr->internalRep.longValue & 0x0000FFFF;
    unsigned int mask = onbits | offbits;
    Tcl_DString result;
    int i, len;


    Tcl_DStringInit(&result);

    for (i=0; stateNames[i] != NULL; ++i) {
	if (mask & (1<<i)) {
	    if (offbits & (1<<i))
		Tcl_DStringAppend(&result, "!", 1);
................................................................................
	    Tcl_DStringAppend(&result, " ", 1);
	}
    }

    len = Tcl_DStringLength(&result);
    if (len) {
	/* 'len' includes extra trailing ' ' */
	objPtr->bytes = Tcl_Alloc((unsigned)len);
	objPtr->length = len-1;
	strncpy(objPtr->bytes, Tcl_DStringValue(&result), (size_t)len-1);
	objPtr->bytes[len-1] = '\0';
    } else {
	/* empty string */
	objPtr->length = 0;
	objPtr->bytes = Tcl_Alloc(1);
	*objPtr->bytes = '\0';
    }

static void StateSpecUpdateString(Tcl_Obj *objPtr)
{
    unsigned int onbits = (objPtr->internalRep.longValue & 0xFFFF0000) >> 16;
    unsigned int offbits = objPtr->internalRep.longValue & 0x0000FFFF;
    unsigned int mask = onbits | offbits;
    Tcl_DString result;
    int i;
    size_t len;

    Tcl_DStringInit(&result);

    for (i=0; stateNames[i] != NULL; ++i) {
	if (mask & (1<<i)) {
	    if (offbits & (1<<i))
		Tcl_DStringAppend(&result, "!", 1);
................................................................................
	    Tcl_DStringAppend(&result, " ", 1);
	}
    }

    len = Tcl_DStringLength(&result);
    if (len) {
	/* 'len' includes extra trailing ' ' */
	objPtr->bytes = Tcl_Alloc(len);
	objPtr->length = len-1;
	strncpy(objPtr->bytes, Tcl_DStringValue(&result), len-1);
	objPtr->bytes[len-1] = '\0';
    } else {
	/* empty string */
	objPtr->length = 0;
	objPtr->bytes = Tcl_Alloc(1);
	*objPtr->bytes = '\0';
    }

CFLAGS_OPTIMIZE		= @[email protected]

# To change the compiler switches, for example to change from optimization to
# debugging symbols, change the following line:
#CFLAGS			= $(CFLAGS_DEBUG)
#CFLAGS			= $(CFLAGS_OPTIMIZE)
#CFLAGS			= $(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
CFLAGS			= @[email protected] @[email protected] -DTCL_USE_INT_RETURN

# Flags to pass to the linker
LDFLAGS_DEBUG		= @[email protected]
LDFLAGS_OPTIMIZE	= @[email protected]
LDFLAGS			= @[email protected] @[email protected]

# A "-I" switch that can be used when compiling to make all of the

CFLAGS_OPTIMIZE		= @[email protected]

# To change the compiler switches, for example to change from optimization to
# debugging symbols, change the following line:
#CFLAGS			= $(CFLAGS_DEBUG)
#CFLAGS			= $(CFLAGS_OPTIMIZE)
#CFLAGS			= $(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
CFLAGS			= @[email protected] @[email protected] 

# Flags to pass to the linker
LDFLAGS_DEBUG		= @[email protected]
LDFLAGS_OPTIMIZE	= @[email protected]
LDFLAGS			= @[email protected] @[email protected]

# A "-I" switch that can be used when compiling to make all of the

const char *
TkpGetString(
    TkWindow *winPtr,		/* Window where event occurred */
    XEvent *eventPtr,		/* X keyboard event. */
    Tcl_DString *dsPtr)		/* Initialized, empty string to hold result. */
{

    int len, mincode, maxcode;
    Tcl_DString buf;
    TkKeyEvent *kePtr = (TkKeyEvent *) eventPtr;

    /*
     * If we have the value cached already, use it now. [Bug 1373712]
     */

    if (kePtr->charValuePtr != NULL) {
	Tcl_DStringSetLength(dsPtr, kePtr->charValueLen);
	memcpy(Tcl_DStringValue(dsPtr), kePtr->charValuePtr,
		(unsigned) kePtr->charValueLen+1);
	return Tcl_DStringValue(dsPtr);
    }

    /*
     * Only do this for KeyPress events, otherwise
     * further Xlib function behavior might be undefined.
     */
................................................................................
     * function, we will be able to produce it without asking X. This stops us
     * from having to reenter the XIM engine. [Bug 1373712]
     */

done:
    kePtr->charValuePtr = ckalloc(len + 1);
    kePtr->charValueLen = len;
    memcpy(kePtr->charValuePtr, Tcl_DStringValue(dsPtr), (unsigned) len + 1);
    return Tcl_DStringValue(dsPtr);
}
 
/*
 * When mapping from a keysym to a keycode, need information about the
 * modifier state to be used so that when they call TkKeycodeToKeysym taking
 * into account the xkey.state, they will get back the original keysym.

const char *
TkpGetString(
    TkWindow *winPtr,		/* Window where event occurred */
    XEvent *eventPtr,		/* X keyboard event. */
    Tcl_DString *dsPtr)		/* Initialized, empty string to hold result. */
{
    size_t len;
    int mincode, maxcode;
    Tcl_DString buf;
    TkKeyEvent *kePtr = (TkKeyEvent *) eventPtr;

    /*
     * If we have the value cached already, use it now. [Bug 1373712]
     */

    if (kePtr->charValuePtr != NULL) {
	Tcl_DStringSetLength(dsPtr, kePtr->charValueLen);
	memcpy(Tcl_DStringValue(dsPtr), kePtr->charValuePtr,
		kePtr->charValueLen+1);
	return Tcl_DStringValue(dsPtr);
    }

    /*
     * Only do this for KeyPress events, otherwise
     * further Xlib function behavior might be undefined.
     */
................................................................................
     * function, we will be able to produce it without asking X. This stops us
     * from having to reenter the XIM engine. [Bug 1373712]
     */

done:
    kePtr->charValuePtr = ckalloc(len + 1);
    kePtr->charValueLen = len;
    memcpy(kePtr->charValuePtr, Tcl_DStringValue(dsPtr), len + 1);
    return Tcl_DStringValue(dsPtr);
}
 
/*
 * When mapping from a keysym to a keycode, need information about the
 * modifier state to be used so that when they call TkKeycodeToKeysym taking
 * into account the xkey.state, they will get back the original keysym.

LDFLAGS_OPTIMIZE = @[email protected]

# To change the compiler switches, for example to change from optimization to
# debugging symbols, change the following line:
#CFLAGS		= $(CFLAGS_DEBUG)
#CFLAGS		= $(CFLAGS_OPTIMIZE)
#CFLAGS		= $(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
CFLAGS		= @[email protected] @[email protected] -DUNICODE -D_UNICODE -D_ATL_XP_TARGETING -DTCL_USE_INT_RETURN

# Special compiler flags to use when building man2tcl on Windows.
MAN2TCLFLAGS	= @[email protected]

AR		= @[email protected]
RANLIB		= @[email protected]
CC		= @[email protected]

LDFLAGS_OPTIMIZE = @[email protected]

# To change the compiler switches, for example to change from optimization to
# debugging symbols, change the following line:
#CFLAGS		= $(CFLAGS_DEBUG)
#CFLAGS		= $(CFLAGS_OPTIMIZE)
#CFLAGS		= $(CFLAGS_DEBUG) $(CFLAGS_OPTIMIZE)
CFLAGS		= @[email protected] @[email protected] -DUNICODE -D_UNICODE -D_ATL_XP_TARGETING

# Special compiler flags to use when building man2tcl on Windows.
MAN2TCLFLAGS	= @[email protected]

AR		= @[email protected]
RANLIB		= @[email protected]
CC		= @[email protected]