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/*
Copyright (c) 1995-2004 Nick Ing-Simmons. All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the same terms as Perl itself.
*/
#define PERL_NO_GET_CONTEXT
#include <EXTERN.h>
#include <perl.h>
#include <XSUB.h>
#include <tkGlue.def>
#include <pTk/tkPort.h>
#include <pTk/tkInt.h>
#include <tkGlue.h>
#include <tkGlue.m>
#include <pTk/tkImgPhoto.h>
#include <pTk/tkImgPhoto.m>
#include "pTk/imgInt.h"
#include "pTk/imgInt.m"
#include <pTk/tkVMacro.h>
#undef memcpy
/*
* The format record for the Window file format:
*/
static int FileMatchWindow _ANSI_ARGS_((Tcl_Channel chan, Tcl_Obj * fileName,
Tcl_Obj * formatString, int *widthPtr, int *heightPtr, Tcl_Interp *interp));
static int FileReadWindow _ANSI_ARGS_((Tcl_Interp *interp,
Tcl_Channel chan, Tcl_Obj * fileName, Tcl_Obj * formatString,
Tk_PhotoHandle imageHandle, int destX, int destY,
int width, int height, int srcX, int srcY));
static int StringMatchWindow _ANSI_ARGS_((Tcl_Obj *dataObj,
Tcl_Obj * formatString, int *widthPtr, int *heightPtr, Tcl_Interp *interp));
static int StringReadWindow _ANSI_ARGS_((Tcl_Interp *interp, Tcl_Obj *dataObj,
Tcl_Obj * formatString, Tk_PhotoHandle imageHandle,
int destX, int destY, int width, int height,
int srcX, int srcY));
Tk_PhotoImageFormat tkImgFmtWindow = {
"Window", /* name */
FileMatchWindow, /* fileMatchProc */
StringMatchWindow, /* stringMatchProc */
FileReadWindow, /* fileReadProc */
StringReadWindow, /* stringReadProc */
NULL, /* fileWriteProc */
NULL, /* stringWriteProc */
};
static int
FileMatchWindow(chan, fileName, formatString, widthPtr, heightPtr, interp)
Tcl_Channel chan; /* The image file, open for reading. */
Tcl_Obj * fileName; /* The name of the image file. */
Tcl_Obj * formatString; /* User-specified format string, or NULL. */
int *widthPtr, *heightPtr; /* The dimensions of the image are
* returned here if the file is a valid
* raw Window file. */
Tcl_Interp *interp;
{
return 0;
}
static int
FileReadWindow(interp, chan, fileName, formatString, imageHandle, destX, destY,
width, height, srcX, srcY)
Tcl_Interp *interp; /* Interpreter to use for reporting errors. */
Tcl_Channel chan; /* The image file, open for reading. */
Tcl_Obj * fileName; /* The name of the image file. */
Tcl_Obj * formatString; /* User-specified format string, or NULL. */
Tk_PhotoHandle imageHandle; /* The photo image to write into. */
int destX, destY; /* Coordinates of top-left pixel in
* photo image to be written to. */
int width, height; /* Dimensions of block of photo image to
* be written to. */
int srcX, srcY; /* Coordinates of top-left pixel to be used
* in image being read. */
{
return TCL_ERROR;
}
static int
StringMatchWindow(dataObj, formatString, widthPtr, heightPtr, interp)
Tcl_Obj *dataObj; /* the object containing the image data */
Tcl_Obj * formatString; /* the image format string */
int *widthPtr; /* where to put the string width */
int *heightPtr; /* where to put the string height */
Tcl_Interp *interp;
{
long val = 0;
if (Tcl_GetLongFromObj(interp, dataObj, &val) == TCL_OK)
{
Tk_Window tkwin = Tk_MainWindow(interp);
Display *dpy = Tk_Display(tkwin);
Window win = val;
XWindowAttributes attr;
XGetWindowAttributes(dpy, win, &attr);
*widthPtr = attr.width;
*heightPtr = attr.height;
return 1;
}
return 0;
}
static int
StringReadWindow(interp,dataObj,formatString,imageHandle,
destX, destY, width, height, srcX, srcY)
Tcl_Interp *interp; /* interpreter for reporting errors in */
Tcl_Obj *dataObj; /* object containing the image */
Tcl_Obj * formatString; /* format string if any */
Tk_PhotoHandle imageHandle; /* the image to write this data into */
int destX, destY; /* The rectangular region of the */
int width, height; /* image to copy */
int srcX, srcY;
{
long val = 0;
if (Tcl_GetLongFromObj(interp, dataObj, &val) == TCL_OK)
{
int x;
int y;
unsigned char *p;
Tk_PhotoImageBlock block;
Tk_Window tkwin = Tk_MainWindow(interp);
Display *dpy = Tk_Display(tkwin);
Window win = val;
XWindowAttributes attr;
XImage *img;
XColor color;
Tcl_HashTable ctable;
XGetWindowAttributes(dpy, win, &attr);
Tcl_InitHashTable(&ctable, TCL_ONE_WORD_KEYS);
if (srcX+width > attr.width)
{
width = attr.width - srcX;
}
if (srcY+height > attr.height)
{
height = attr.height - srcY;
}
if (width <= 0 || height <= 0)
{
return TCL_ERROR;
}
img = XGetImage(dpy, win, srcX, srcY, width, height,
(unsigned long) -1, XYPixmap);
Tk_PhotoGetImage(imageHandle, &block);
block.offset[3] = (block.pixelSize > 3) ? 3 : 0;
block.width = width;
block.pitch = block.pixelSize * width;
block.height = height;
block.pixelPtr = (unsigned char *)
ckalloc((unsigned) block.pixelSize * width * height);
p = block.pixelPtr;
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
unsigned char *p = block.pixelPtr+(y*block.pitch)+(x*block.pixelSize);
Tcl_HashEntry *he;
int new = 0;
ClientData cd = 0;
color.pixel = (*img->f.get_pixel)(img, srcX+x, srcY+y);
he = Tcl_CreateHashEntry(&ctable,(char *) color.pixel, &new);
if (new)
{
XQueryColors(dpy, attr.colormap, &color, 1);
p[0] = color.red >> 8;
p[1] = color.green >> 8;
p[2] = color.blue >> 8;
if (block.pixelSize > 3)
p[3] = 255;
Copy(p,&cd,block.pixelSize,unsigned char);
Tcl_SetHashValue(he, cd);
}
else
{
cd = Tcl_GetHashValue(he);
Copy(&cd, p, block.pixelSize,unsigned char);
}
}
}
Tk_PhotoExpand(imageHandle, destX + width, destY + height);
Tk_PhotoPutBlock(imageHandle, &block, destX, destY, width, height, TK_PHOTO_COMPOSITE_SET);
Tcl_DeleteHashTable(&ctable);
(*img->f.destroy_image)(img);
ckfree((char *) block.pixelPtr);
}
else
{
croak("Cannot get window from %"SVf,dataObj);
}
return TCL_OK;
}
DECLARE_VTABLES;
DECLARE_PHOTO;
MODULE = Tk::WinPhoto PACKAGE = Tk::WinPhoto
PROTOTYPES: DISABLE
BOOT:
{
IMPORT_VTABLES;
IMPORT_PHOTO;
Tk_CreatePhotoImageFormat(&tkImgFmtWindow);
}
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