mirror of
https://github.com/pocoproject/poco.git
synced 2025-02-03 23:55:49 +01:00
340 lines
8.5 KiB
C
340 lines
8.5 KiB
C
/*
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* << Haru Free PDF Library 2.0.0 >> -- hpdf_destination.c
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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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*
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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 "hpdf_conf.h"
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#include "hpdf_utils.h"
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#include "hpdf.h"
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const char *HPDF_DESTINATION_TYPE_NAMES[] = {
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"XYZ",
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"Fit",
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"FitH",
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"FitV",
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"FitR",
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"FitB",
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"FitBH",
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"FitBV",
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NULL
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};
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/*----------------------------------------------------------------------------*/
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/*----- HPDF_Destination -----------------------------------------------------*/
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HPDF_Destination
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HPDF_Destination_New (HPDF_MMgr mmgr,
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HPDF_Page target,
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HPDF_Xref xref)
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{
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HPDF_Destination dst;
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HPDF_PTRACE((" HPDF_Destination_New\n"));
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if (!HPDF_Page_Validate (target)) {
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HPDF_SetError (mmgr->error, HPDF_INVALID_PAGE, 0);
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return NULL;
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}
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dst = HPDF_Array_New (mmgr);
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if (!dst)
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return NULL;
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dst->header.obj_class |= HPDF_OSUBCLASS_DESTINATION;
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if (HPDF_Xref_Add (xref, dst) != HPDF_OK)
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return NULL;
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/* first item of array must be target page */
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if (HPDF_Array_Add (dst, target) != HPDF_OK)
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return NULL;
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/* default type is HPDF_FIT */
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if (HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT]) != HPDF_OK)
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return NULL;
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return dst;
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}
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HPDF_BOOL
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HPDF_Destination_Validate (HPDF_Destination dst)
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{
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HPDF_Obj_Header *header = (HPDF_Obj_Header *)dst;
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HPDF_Page target;
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if (!dst || header->obj_class !=
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(HPDF_OCLASS_ARRAY | HPDF_OSUBCLASS_DESTINATION))
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return HPDF_FALSE;
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/* destination-types not defined. */
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if (dst->list->count < 2)
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return HPDF_FALSE;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (!HPDF_Page_Validate (target))
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return HPDF_SetError (dst->error, HPDF_INVALID_PAGE, 0);
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return HPDF_TRUE;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetXYZ (HPDF_Destination dst,
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HPDF_REAL left,
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HPDF_REAL top,
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HPDF_REAL zoom)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetXYZ\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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if (left < 0 || top < 0 || zoom < 0.08 || zoom > 32)
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return HPDF_RaiseError (dst->error, HPDF_INVALID_PARAMETER, 0);
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_XYZ]);
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ret += HPDF_Array_AddReal (dst, left);
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ret += HPDF_Array_AddReal (dst, top);
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ret += HPDF_Array_AddReal (dst, zoom);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFit (HPDF_Destination dst)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFit\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT]);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitH (HPDF_Destination dst,
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HPDF_REAL top)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitH\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_H]);
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ret += HPDF_Array_AddReal (dst, top);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitV (HPDF_Destination dst,
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HPDF_REAL left)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitV\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_V]);
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ret += HPDF_Array_AddReal (dst, left);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitR (HPDF_Destination dst,
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HPDF_REAL left,
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HPDF_REAL bottom,
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HPDF_REAL right,
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HPDF_REAL top)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitR\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_R]);
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ret += HPDF_Array_AddReal (dst, left);
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ret += HPDF_Array_AddReal (dst, bottom);
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ret += HPDF_Array_AddReal (dst, right);
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ret += HPDF_Array_AddReal (dst, top);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitB (HPDF_Destination dst)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitB\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_B]);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitBH (HPDF_Destination dst,
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HPDF_REAL top)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitBH\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_BH]);
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ret += HPDF_Array_AddReal (dst, top);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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HPDF_EXPORT(HPDF_STATUS)
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HPDF_Destination_SetFitBV (HPDF_Destination dst,
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HPDF_REAL left)
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{
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HPDF_STATUS ret = HPDF_OK;
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HPDF_Page target;
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HPDF_PTRACE((" HPDF_Destination_SetFitBV\n"));
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if (!HPDF_Destination_Validate (dst))
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return HPDF_INVALID_DESTINATION;
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target = (HPDF_Page)HPDF_Array_GetItem (dst, 0, HPDF_OCLASS_DICT);
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if (dst->list->count > 1) {
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HPDF_Array_Clear (dst);
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ret += HPDF_Array_Add (dst, target);
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}
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ret += HPDF_Array_AddName (dst,
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HPDF_DESTINATION_TYPE_NAMES[(HPDF_INT)HPDF_FIT_BV]);
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ret += HPDF_Array_AddReal (dst, left);
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if (ret != HPDF_OK)
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return HPDF_CheckError (dst->error);
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return HPDF_OK;
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}
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