summaryrefslogtreecommitdiff
path: root/source/pdf/pdf-field.c
blob: 3bb0acc3c4318ea04cf39c63b74b8facbb4dd7d9 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
#include "mupdf/fitz.h"
#include "mupdf/pdf.h"

#include <string.h>

char *pdf_field_value(fz_context *ctx, pdf_document *doc, pdf_obj *field)
{
	return pdf_load_stream_or_string_as_utf8(ctx, pdf_dict_get_inheritable(ctx, field, PDF_NAME(V)));
}

int pdf_get_field_flags(fz_context *ctx, pdf_document *doc, pdf_obj *obj)
{
	return pdf_to_int(ctx, pdf_dict_get_inheritable(ctx, obj, PDF_NAME(Ff)));
}

static pdf_obj *get_field_type_name(fz_context *ctx, pdf_document *doc, pdf_obj *obj)
{
	return pdf_dict_get_inheritable(ctx, obj, PDF_NAME(FT));
}

int pdf_field_type(fz_context *ctx, pdf_document *doc, pdf_obj *obj)
{
	pdf_obj *type = get_field_type_name(ctx, doc, obj);
	int flags = pdf_get_field_flags(ctx, doc, obj);

	if (pdf_name_eq(ctx, type, PDF_NAME(Btn)))
	{
		if (flags & Ff_Pushbutton)
			return PDF_WIDGET_TYPE_PUSHBUTTON;
		else if (flags & Ff_Radio)
			return PDF_WIDGET_TYPE_RADIOBUTTON;
		else
			return PDF_WIDGET_TYPE_CHECKBOX;
	}
	else if (pdf_name_eq(ctx, type, PDF_NAME(Tx)))
		return PDF_WIDGET_TYPE_TEXT;
	else if (pdf_name_eq(ctx, type, PDF_NAME(Ch)))
	{
		if (flags & Ff_Combo)
			return PDF_WIDGET_TYPE_COMBOBOX;
		else
			return PDF_WIDGET_TYPE_LISTBOX;
	}
	else if (pdf_name_eq(ctx, type, PDF_NAME(Sig)))
		return PDF_WIDGET_TYPE_SIGNATURE;
	else
		return PDF_WIDGET_TYPE_NOT_WIDGET;
}

void pdf_set_field_type(fz_context *ctx, pdf_document *doc, pdf_obj *obj, int type)
{
	int setbits = 0;
	int clearbits = 0;
	pdf_obj *typename = NULL;

	switch(type)
	{
	case PDF_WIDGET_TYPE_PUSHBUTTON:
		typename = PDF_NAME(Btn);
		setbits = Ff_Pushbutton;
		break;
	case PDF_WIDGET_TYPE_CHECKBOX:
		typename = PDF_NAME(Btn);
		clearbits = Ff_Pushbutton;
		setbits = Ff_Radio;
		break;
	case PDF_WIDGET_TYPE_RADIOBUTTON:
		typename = PDF_NAME(Btn);
		clearbits = (Ff_Pushbutton|Ff_Radio);
		break;
	case PDF_WIDGET_TYPE_TEXT:
		typename = PDF_NAME(Tx);
		break;
	case PDF_WIDGET_TYPE_LISTBOX:
		typename = PDF_NAME(Ch);
		clearbits = Ff_Combo;
		break;
	case PDF_WIDGET_TYPE_COMBOBOX:
		typename = PDF_NAME(Ch);
		setbits = Ff_Combo;
		break;
	case PDF_WIDGET_TYPE_SIGNATURE:
		typename = PDF_NAME(Sig);
		break;
	}

	if (typename)
		pdf_dict_put_drop(ctx, obj, PDF_NAME(FT), typename);

	if (setbits != 0 || clearbits != 0)
	{
		int bits = pdf_dict_get_int(ctx, obj, PDF_NAME(Ff));
		bits &= ~clearbits;
		bits |= setbits;
		pdf_dict_put_int(ctx, obj, PDF_NAME(Ff), bits);
	}
}