a7ab70c375
* contrib/hbhpdf/3rd/libhpdf/libhpdf.hbp
* contrib/hbhpdf/3rd/libhpdf/libhpdf.dif
+ contrib/hbhpdf/3rd/libhpdf/hpdf3dme.h
+ contrib/hbhpdf/3rd/libhpdf/hpdf3dme.c
+ contrib/hbhpdf/3rd/libhpdf/hpdfencu.c
+ contrib/hbhpdf/3rd/libhpdf/hpdfexda.h
+ contrib/hbhpdf/3rd/libhpdf/hpdfexda.c
+ contrib/hbhpdf/3rd/libhpdf/hpdfimac.c
+ contrib/hbhpdf/3rd/libhpdf/t4.h
* contrib/hbhpdf/3rd/libhpdf/*
+ libharu 2.2.1 -> 2.3.0RC2
updated to latest RC2 because I may also need it and
the project is pretty much dead these days, so it might
take a while to decide on a release. (plus I submitted
pull request for warnings and report about more warnings)
beware of bugs and if you find any, report to libharu
developers. most important new stuff is partial unicode
(1-2 bytes UTF8) and PDF/A support. it also incorporates
our png patch, so local patching is minimal now.
; TODO: add hbhpdf wrappers for new functions not yet covered.
154 lines
4.1 KiB
C
154 lines
4.1 KiB
C
/*
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* << Haru Free PDF Library >> -- hpdf_ext_gstate.c
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*
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* URL: http://libharu.org
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*
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* Copyright (c) 1999-2006 Takeshi Kanno <takeshi_kanno@est.hi-ho.ne.jp>
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* Copyright (c) 2007-2009 Antony Dovgal <tony@daylessday.org>
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation.
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* It is provided "as is" without express or implied warranty.
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*
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*/
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#include "hpdfconf.h"
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#include "hpdfutil.h"
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#include "hpdfextg.h"
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#include "hpdf.h"
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static const char * const HPDF_BM_NAMES[] = {
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"Normal",
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"Multiply",
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"Screen",
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"Overlay",
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"Darken",
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"Lighten",
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"ColorDodge",
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"ColorBurn",
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"HardLight",
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"SoftLight",
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"Difference",
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"Exclusion"
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};
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HPDF_BOOL
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HPDF_ExtGState_Validate (HPDF_ExtGState ext_gstate)
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{
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if (!ext_gstate || (ext_gstate->header.obj_class !=
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(HPDF_OSUBCLASS_EXT_GSTATE | HPDF_OCLASS_DICT) &&
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ext_gstate->header.obj_class !=
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(HPDF_OSUBCLASS_EXT_GSTATE_R | HPDF_OCLASS_DICT)))
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return HPDF_FALSE;
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return HPDF_TRUE;
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}
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HPDF_STATUS
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ExtGState_Check (HPDF_ExtGState ext_gstate)
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{
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if (!HPDF_ExtGState_Validate (ext_gstate))
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return HPDF_INVALID_OBJECT;
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if (ext_gstate->header.obj_class ==
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(HPDF_OSUBCLASS_EXT_GSTATE_R | HPDF_OCLASS_DICT))
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return HPDF_RaiseError (ext_gstate->error, HPDF_EXT_GSTATE_READ_ONLY,
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0);
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return HPDF_OK;
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}
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HPDF_Dict
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HPDF_ExtGState_New (HPDF_MMgr mmgr,
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HPDF_Xref xref)
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{
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HPDF_Dict obj = HPDF_Dict_New (mmgr);
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HPDF_PTRACE ((" HPDF_ExtGState_New\n"));
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if (!obj)
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return NULL;
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if (HPDF_Xref_Add (xref, obj) != HPDF_OK)
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return NULL;
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if (HPDF_Dict_AddName (obj, "Type", "ExtGState") != HPDF_OK)
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return NULL;
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obj->header.obj_class |= HPDF_OSUBCLASS_EXT_GSTATE;
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return obj;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_ExtGState_SetAlphaStroke (HPDF_ExtGState ext_gstate,
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HPDF_REAL value)
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{
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HPDF_STATUS ret = ExtGState_Check (ext_gstate);
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if (ret != HPDF_OK)
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return ret;
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if (value < 0 || value > 1.0f)
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return HPDF_RaiseError (ext_gstate->error,
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HPDF_EXT_GSTATE_OUT_OF_RANGE, 0);
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return HPDF_Dict_AddReal (ext_gstate, "CA", value);
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_ExtGState_SetAlphaFill (HPDF_ExtGState ext_gstate,
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HPDF_REAL value)
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{
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HPDF_STATUS ret = ExtGState_Check (ext_gstate);
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if (ret != HPDF_OK)
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return ret;
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if (value < 0 || value > 1.0f)
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return HPDF_RaiseError (ext_gstate->error,
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HPDF_EXT_GSTATE_OUT_OF_RANGE, 0);
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return HPDF_Dict_AddReal (ext_gstate, "ca", value);
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_ExtGState_SetBlendMode (HPDF_ExtGState ext_gstate,
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HPDF_BlendMode bmode)
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{
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HPDF_STATUS ret = ExtGState_Check (ext_gstate);
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if (ret != HPDF_OK)
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return ret;
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if ((int)bmode < 0 || (int)bmode > (int)HPDF_BM_EOF)
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return HPDF_RaiseError (ext_gstate->error,
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HPDF_EXT_GSTATE_OUT_OF_RANGE, 0);
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return HPDF_Dict_AddName (ext_gstate, "BM", HPDF_BM_NAMES[(int)bmode]);
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}
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/*
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HPDF_STATUS
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HPDF_ExtGState_SetStrokeAdjustment (HPDF_ExtGState ext_gstate,
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HPDF_BOOL value)
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{
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HPDF_STATUS ret = ExtGState_Check (ext_gstate);
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if (ret != HPDF_OK)
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return ret;
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return HPDF_Dict_AddBoolean (ext_gstate, "SA", value);
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}
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*/
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