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hpdf_u3d.c
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hpdf_u3d.c
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/*
* << Haru Free PDF Library >> -- hpdf_u3d.c
*
* URL: http://libharu.org
*
* Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp>
* Copyright (c) 2007-2009 Antony Dovgal <tony@daylessday.org>
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation.
* It is provided "as is" without express or implied warranty.
*
*/
#include "hpdf_conf.h"
#include "hpdf_utils.h"
#include "hpdf.h"
#include <string.h>
#ifndef M_PI
/* Not defined in MSVC6 */
#define M_PI 3.14159265358979323846
#endif
HPDF_U3D
HPDF_U3D_LoadU3D (HPDF_MMgr mmgr,
HPDF_Stream u3d_data,
HPDF_Xref xref);
static const char u3d[] = "U3D";
static const char prc[] = "PRC";
static HPDF_STATUS Get3DStreamType (HPDF_Stream stream, const char **type)
{
HPDF_BYTE tag[4];
HPDF_UINT len;
HPDF_PTRACE ((" HPDF_U3D_Get3DStreamType\n"));
len = 4;
if (HPDF_Stream_Read (stream, tag, &len) != HPDF_OK) {
return HPDF_Error_GetCode (stream->error);
}
if (HPDF_Stream_Seek (stream, 0, HPDF_SEEK_SET) != HPDF_OK) {
return HPDF_Error_GetCode (stream->error);
}
if (HPDF_MemCmp(tag, (HPDF_BYTE *)u3d, 4/* yes, \0 is required */) == 0) {
*type = u3d;
return HPDF_OK;
}
if (HPDF_MemCmp(tag, (HPDF_BYTE *)prc, 3) == 0) {
*type = prc;
return HPDF_OK;
}
return HPDF_INVALID_U3D_DATA;
}
HPDF_U3D
HPDF_U3D_LoadU3DFromMem ( HPDF_MMgr mmgr,
const HPDF_BYTE *buf,
HPDF_UINT size,
HPDF_Xref xref )
{
HPDF_Dict image;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_U3D_LoadU3DFromMem\n"));
image = HPDF_DictStream_New (mmgr, xref);
if (!image) {
return NULL;
}
image->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
ret = HPDF_Dict_AddName (image, "Type", "XObject");
if (ret != HPDF_OK) {
HPDF_Dict_Free(image);
return NULL;
}
ret = HPDF_Dict_AddName (image, "Subtype", "Image");
if (ret != HPDF_OK) {
HPDF_Dict_Free(image);
return NULL;
}
if (HPDF_Stream_Write (image->stream, buf, size) != HPDF_OK) {
HPDF_Dict_Free(image);
return NULL;
}
return image;
}
HPDF_EXPORT(HPDF_Image)
HPDF_LoadU3DFromFile (HPDF_Doc pdf,
const char *filename)
{
HPDF_Stream imagedata;
HPDF_Image image;
HPDF_PTRACE ((" HPDF_LoadU3DFromFile\n"));
if (!HPDF_HasDoc (pdf)) {
return NULL;
}
/* create file stream */
imagedata = HPDF_FileReader_New (pdf->mmgr, filename);
if (HPDF_Stream_Validate (imagedata)) {
image = HPDF_U3D_LoadU3D (pdf->mmgr, imagedata, pdf->xref);
} else {
image = NULL;
}
/* destroy file stream */
HPDF_Stream_Free (imagedata);
if (!image) {
HPDF_CheckError (&pdf->error);
}
return image;
}
HPDF_EXPORT(HPDF_Image)
HPDF_LoadU3DFromMem (HPDF_Doc pdf,
const HPDF_BYTE *buffer,
HPDF_UINT size)
{
HPDF_Stream imagedata;
HPDF_Image image;
HPDF_PTRACE ((" HPDF_LoadU3DFromMem\n"));
if (!HPDF_HasDoc (pdf)) {
return NULL;
}
/* create file stream */
imagedata = HPDF_MemStream_New (pdf->mmgr, size);
if (!HPDF_Stream_Validate (imagedata)) {
HPDF_RaiseError (&pdf->error, HPDF_INVALID_STREAM, 0);
return NULL;
}
if (HPDF_Stream_Write (imagedata, buffer, size) != HPDF_OK) {
HPDF_Stream_Free (imagedata);
return NULL;
}
if (HPDF_Stream_Validate (imagedata)) {
image = HPDF_U3D_LoadU3D (pdf->mmgr, imagedata, pdf->xref);
} else {
image = NULL;
}
/* destroy file stream */
HPDF_Stream_Free (imagedata);
if (!image) {
HPDF_CheckError (&pdf->error);
}
return image;
}
HPDF_U3D
HPDF_U3D_LoadU3D (HPDF_MMgr mmgr,
HPDF_Stream u3d_data,
HPDF_Xref xref)
{
HPDF_Dict u3d;
const char *type;
HPDF_PTRACE ((" HPDF_U3D_LoadU3D\n"));
u3d = HPDF_DictStream_New (mmgr, xref);
if (!u3d) {
return NULL;
}
u3d->header.obj_class |= HPDF_OSUBCLASS_XOBJECT;
/* add required elements */
u3d->filter = HPDF_STREAM_FILTER_NONE;
if (HPDF_Dict_AddName (u3d, "Type", "3D") != HPDF_OK) {
HPDF_Dict_Free(u3d);
return NULL;
}
if (Get3DStreamType (u3d_data, &type) != HPDF_OK) {
HPDF_Dict_Free(u3d);
return NULL;
}
if (HPDF_Dict_AddName (u3d, "Subtype", type) != HPDF_OK) {
HPDF_Dict_Free(u3d);
return NULL;
}
for (;;) {
HPDF_BYTE buf[HPDF_STREAM_BUF_SIZ];
HPDF_UINT len = HPDF_STREAM_BUF_SIZ;
HPDF_STATUS ret = HPDF_Stream_Read (u3d_data, buf, &len);
if (ret != HPDF_OK) {
if (ret == HPDF_STREAM_EOF) {
if (len > 0) {
ret = HPDF_Stream_Write (u3d->stream, buf, len);
if (ret != HPDF_OK) {
HPDF_Dict_Free(u3d);
return NULL;
}
}
break;
} else {
HPDF_Dict_Free(u3d);
return NULL;
}
}
if (HPDF_Stream_Write (u3d->stream, buf, len) != HPDF_OK) {
HPDF_Dict_Free(u3d);
return NULL;
}
}
return u3d;
}
HPDF_EXPORT(HPDF_Dict) HPDF_Create3DView(HPDF_MMgr mmgr, const char *name)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict view;
HPDF_PTRACE ((" HPDF_Create3DView\n"));
if (name == NULL || name[0] == '\0') {
return NULL;
}
view = HPDF_Dict_New (mmgr);
if (!view) {
return NULL;
}
ret = HPDF_Dict_AddName (view, "TYPE", "3DView");
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
ret = HPDF_Dict_Add (view, "XN", HPDF_String_New (mmgr, name, NULL));
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
ret = HPDF_Dict_Add (view, "IN", HPDF_String_New (mmgr, name, NULL));
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
return view;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_U3D_Add3DView(HPDF_U3D u3d, HPDF_Dict view)
{
HPDF_Array views = NULL;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_Add3DView\n"));
if (u3d == NULL || view == NULL) {
return HPDF_INVALID_U3D_DATA;
}
views = (HPDF_Array)HPDF_Dict_GetItem (u3d, "VA", HPDF_OCLASS_ARRAY);
if (views == NULL) {
views = HPDF_Array_New (u3d->mmgr);
if (!views) {
return HPDF_Error_GetCode (u3d->error);
}
ret = HPDF_Dict_Add (u3d, "VA", views);
if (ret == HPDF_OK) {
ret = HPDF_Dict_AddNumber (u3d, "DV", 0);
} else {
HPDF_Array_Free (views);
return ret;
}
}
if (ret == HPDF_OK) {
ret = HPDF_Array_Add( views, view);
}
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_U3D_AddOnInstanciate(HPDF_U3D u3d, HPDF_JavaScript javascript)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_U3D_AddOnInstanciate\n"));
if (u3d == NULL || javascript == NULL) {
return HPDF_INVALID_U3D_DATA;
}
ret = HPDF_Dict_Add(u3d, "OnInstantiate", javascript);
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_U3D_SetDefault3DView(HPDF_U3D u3d, const char *name)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_U3D_SetDefault3DView\n"));
if (u3d == NULL || name == NULL || name[0] == '\0') {
return HPDF_INVALID_U3D_DATA;
}
ret = HPDF_Dict_Add (u3d, "DV", HPDF_String_New (u3d->mmgr, name, NULL));
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_AddNode(HPDF_Dict view, const char *name, HPDF_REAL opacity, HPDF_BOOL visible)
{
HPDF_Array nodes = NULL;
HPDF_Dict node;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_3DView_AddNode\n"));
if (view == NULL || opacity < 0 || opacity > 1 || name == NULL || name[0] == '\0') {
return HPDF_INVALID_U3D_DATA;
}
nodes = (HPDF_Array)HPDF_Dict_GetItem (view, "NA", HPDF_OCLASS_ARRAY);
if (nodes == NULL) {
nodes = HPDF_Array_New (view->mmgr);
if (!nodes) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Dict_Add (view, "NA", nodes);
if (ret != HPDF_OK) {
HPDF_Array_Free (nodes);
return ret;
}
}
node = HPDF_Dict_New (view->mmgr);
if (!node) {
HPDF_Array_Free (nodes);
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Dict_AddName (node, "Type", "3DNode");
if (ret != HPDF_OK) {
HPDF_Array_Free (nodes);
HPDF_Dict_Free (node);
return ret;
}
ret = HPDF_Dict_Add (node, "N", HPDF_String_New (view->mmgr, name, NULL));
if (ret != HPDF_OK) {
HPDF_Array_Free (nodes);
HPDF_Dict_Free (node);
return ret;
}
ret = HPDF_Dict_AddReal (node, "O", opacity);
if (ret != HPDF_OK) {
HPDF_Array_Free (nodes);
HPDF_Dict_Free (node);
return ret;
}
ret = HPDF_Dict_AddBoolean (node, "V", visible);
if (ret != HPDF_OK) {
HPDF_Dict_Free (node);
HPDF_Array_Free (nodes);
return ret;
}
ret = HPDF_Array_Add(nodes, node);
if (ret != HPDF_OK) {
HPDF_Dict_Free (node);
HPDF_Array_Free (nodes);
return ret;
}
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetLighting(HPDF_Dict view, const char *scheme)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict lighting;
int i;
static const char * const schemes[] =
{ "Artwork", "None", "White", "Day", "Night", "Hard", "Primary", "Blue", "Red", "Cube", "CAD", "Headlamp" };
HPDF_PTRACE ((" HPDF_3DView_SetLighting\n"));
if (view == NULL || scheme == NULL || scheme[0] == '\0') {
return HPDF_INVALID_U3D_DATA;
}
for (i = 0; i < 12; i++) {
if (!strcmp(scheme, schemes[i])) {
break;
}
}
if (i == 12) {
return HPDF_INVALID_U3D_DATA;
}
lighting = HPDF_Dict_New (view->mmgr);
if (!lighting) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Dict_AddName (lighting, "Type", "3DLightingScheme");
if (ret != HPDF_OK) {
HPDF_Dict_Free (lighting);
return ret;
}
ret = HPDF_Dict_AddName (lighting, "Subtype", scheme);
if (ret != HPDF_OK) {
HPDF_Dict_Free (lighting);
return ret;
}
ret = HPDF_Dict_Add (view, "LS", lighting);
if (ret != HPDF_OK) {
HPDF_Dict_Free (lighting);
return ret;
}
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetBackgroundColor(HPDF_Dict view, HPDF_REAL r, HPDF_REAL g, HPDF_REAL b)
{
HPDF_Array color;
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict background;
HPDF_PTRACE ((" HPDF_3DView_SetBackgroundColor\n"));
if (view == NULL || r < 0 || r > 1 || g < 0 || g > 1 || b < 0 || b > 1) {
return HPDF_INVALID_U3D_DATA;
}
background = HPDF_Dict_New (view->mmgr);
if (!background) {
return HPDF_Error_GetCode (view->error);
}
color = HPDF_Array_New (view->mmgr);
if (!color) {
HPDF_Dict_Free (background);
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Array_AddReal (color, r);
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
ret = HPDF_Array_AddReal (color, g);
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
ret = HPDF_Array_AddReal (color, b);
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
ret = HPDF_Dict_AddName (background, "Type", "3DBG");
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
ret = HPDF_Dict_Add (background, "C", color);
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
ret = HPDF_Dict_Add (view, "BG", background);
if (ret != HPDF_OK) {
HPDF_Array_Free (color);
HPDF_Dict_Free (background);
return ret;
}
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetPerspectiveProjection(HPDF_Dict view, HPDF_REAL fov)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict projection;
HPDF_PTRACE ((" HPDF_3DView_SetPerspectiveProjection\n"));
if (view == NULL || fov < 0 || fov > 180) {
return HPDF_INVALID_U3D_DATA;
}
projection = HPDF_Dict_New (view->mmgr);
if (!projection) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Dict_AddName (projection, "Subtype", "P");
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
ret = HPDF_Dict_AddName (projection, "PS", "Min");
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
ret = HPDF_Dict_AddReal (projection, "FOV", fov);
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
ret = HPDF_Dict_Add (view, "P", projection);
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
return ret;
}
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetOrthogonalProjection(HPDF_Dict view, HPDF_REAL mag)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict projection;
HPDF_PTRACE ((" HPDF_3DView_SetOrthogonalProjection\n"));
if (view == NULL || mag <= 0) {
return HPDF_INVALID_U3D_DATA;
}
projection = HPDF_Dict_New (view->mmgr);
if (!projection) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Dict_AddName (projection, "Subtype", "O");
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
ret = HPDF_Dict_AddReal (projection, "OS", mag);
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
ret = HPDF_Dict_Add (view, "P", projection);
if (ret != HPDF_OK) {
HPDF_Dict_Free (projection);
return ret;
}
return ret;
}
#define normalize(x, y, z) \
{ \
HPDF_REAL modulo; \
modulo = (float)sqrt((float)(x*x) + (float)(y*y) + (float)(z*z)); \
if (modulo != 0.0) \
{ \
x = x/modulo; \
y = y/modulo; \
z = z/modulo; \
} \
}
/* building the transformation matrix*/
/* #1,#2,#3 centre of orbit coordinates (coo)*/
/* #4,#5,#6 centre of orbit to camera direction vector (c2c)*/
/* #7 orbital radius (roo)*/
/* #8 camera roll (roll)*/
HPDF_EXPORT(HPDF_STATUS) HPDF_3DView_SetCamera(HPDF_Dict view, HPDF_REAL coox, HPDF_REAL cooy, HPDF_REAL cooz, HPDF_REAL c2cx, HPDF_REAL c2cy, HPDF_REAL c2cz, HPDF_REAL roo, HPDF_REAL roll)
{
HPDF_REAL viewx, viewy, viewz;
HPDF_REAL leftx, lefty, leftz;
HPDF_REAL upx, upy, upz;
HPDF_REAL transx, transy, transz;
HPDF_Array matrix;
HPDF_STATUS ret = HPDF_OK;
HPDF_PTRACE ((" HPDF_3DView_SetCamera\n"));
if (view == NULL) {
return HPDF_INVALID_U3D_DATA;
}
/* view vector (opposite to c2c) */
viewx = -c2cx;
viewy = -c2cy;
viewz = -c2cz;
/* c2c = (0, -1, 0) by default */
if (viewx == 0.0 && viewy == 0.0 && viewz == 0.0) {
viewy = 1.0;
}
/* normalize view vector */
normalize(viewx, viewy, viewz);
/* rotation matrix */
/* top and bottom views */
leftx = -1.0f;
lefty = 0.0f;
leftz = 0.0f;
/* up-vector */
if (viewz < 0.0) /* top view*/
{
upx = 0.0f;
upy = 1.0f;
upz = 0.0f;
}
else /* bottom view*/
{
upx = 0.0f;
upy =-1.0f;
upz = 0.0f;
}
if ( fabs(viewx) + fabs(viewy) != 0.0f) /* other views than top and bottom*/
{
/* up-vector = up_world - (up_world dot view) view*/
upx = -viewz*viewx;
upy = -viewz*viewy;
upz = -viewz*viewz + 1.0f;
/* normalize up-vector*/
normalize(upx, upy, upz);
/* left vector = up x view*/
leftx = viewz*upy - viewy*upz;
lefty = viewx*upz - viewz*upx;
leftz = viewy*upx - viewx*upy;
/* normalize left vector*/
normalize(leftx, lefty, leftz);
}
/* apply camera roll*/
{
HPDF_REAL leftxprime, leftyprime, leftzprime;
HPDF_REAL upxprime, upyprime, upzprime;
HPDF_REAL sinroll, cosroll;
sinroll = (HPDF_REAL)sin((roll/180.0f)*M_PI);
cosroll = (HPDF_REAL)cos((roll/180.0f)*M_PI);
leftxprime = leftx*cosroll + upx*sinroll;
leftyprime = lefty*cosroll + upy*sinroll;
leftzprime = leftz*cosroll + upz*sinroll;
upxprime = upx*cosroll + leftx*sinroll;
upyprime = upy*cosroll + lefty*sinroll;
upzprime = upz*cosroll + leftz*sinroll;
leftx = leftxprime;
lefty = leftyprime;
leftz = leftzprime;
upx = upxprime;
upy = upyprime;
upz = upzprime;
}
/* translation vector*/
roo = (HPDF_REAL)fabs(roo);
if (roo == 0.0) {
roo = (HPDF_REAL)0.000000000000000001;
}
transx = coox - roo*viewx;
transy = cooy - roo*viewy;
transz = cooz - roo*viewz;
/* transformation matrix*/
matrix = HPDF_Array_New (view->mmgr);
if (!matrix) {
return HPDF_Error_GetCode (view->error);
}
ret = HPDF_Array_AddReal (matrix, leftx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, lefty);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, leftz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, upz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, viewz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transx);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transy);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Array_AddReal (matrix, transz);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_AddName (view, "MS", "M");
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_Add (view, "C2W", matrix);
if (ret != HPDF_OK) goto failed;
ret = HPDF_Dict_AddNumber (view, "CO", (HPDF_INT32)roo);
failed:
if (ret != HPDF_OK) {
HPDF_Array_Free (matrix);
return ret;
}
return ret;
}
HPDF_Dict HPDF_3DView_New( HPDF_MMgr mmgr, HPDF_Xref xref, HPDF_U3D u3d, const char *name)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Dict view;
HPDF_PTRACE ((" HPDF_3DView_New\n"));
if (name == NULL || name[0] == '\0') {
return NULL;
}
view = HPDF_Dict_New (mmgr);
if (!view) {
return NULL;
}
if (HPDF_Xref_Add (xref, view) != HPDF_OK)
return NULL;
ret = HPDF_Dict_AddName (view, "TYPE", "3DView");
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
ret = HPDF_Dict_Add (view, "XN", HPDF_String_New (mmgr, name, NULL));
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
ret = HPDF_Dict_Add (view, "IN", HPDF_String_New (mmgr, name, NULL));
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
ret = HPDF_U3D_Add3DView( u3d, view);
if (ret != HPDF_OK) {
HPDF_Dict_Free (view);
return NULL;
}
return view;
}
HPDF_EXPORT(HPDF_STATUS)
HPDF_3DView_Add3DC3DMeasure(HPDF_Dict view,
HPDF_3DMeasure measure)
{
HPDF_STATUS ret = HPDF_OK;
HPDF_Array array;
void* a;
a = HPDF_Dict_GetItem (view, "MA", HPDF_OCLASS_ARRAY);
if ( a )
{
array = (HPDF_Array)a;
}
else
{
array = HPDF_Array_New (view->mmgr);
if (!array)
return 0;
if (HPDF_Dict_Add (view, "MA", array) != HPDF_OK)
return 0;
}
ret = HPDF_Array_Add(array, measure);
return ret;
}
HPDF_EXPORT(HPDF_JavaScript) HPDF_CreateJavaScript( HPDF_Doc pdf, const char *code )
{
HPDF_JavaScript javaScript;
int len ;
HPDF_PTRACE ((" HPDF_CreateJavaScript\n"));
javaScript = (HPDF_JavaScript) HPDF_DictStream_New(pdf->mmgr, pdf->xref);
if (!javaScript) {
return NULL;
}
len = (HPDF_UINT)strlen(code);
if (HPDF_Stream_Write (javaScript->stream, (HPDF_BYTE *)code, len) != HPDF_OK) {
HPDF_Dict_Free(javaScript);
return NULL;
}
return javaScript;
}
#undef normalize