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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
|
<?php
/**
* Classes to create relation schema in Dia format.
*/
declare(strict_types=1);
namespace PhpMyAdmin\Plugins\Schema\Dia;
use PhpMyAdmin\Core;
use PhpMyAdmin\ResponseRenderer;
use XMLWriter;
use function ob_end_clean;
use function ob_get_clean;
use function strlen;
/**
* This Class inherits the XMLwriter class and
* helps in developing structure of DIA Schema Export
*
* @see https://www.php.net/manual/en/book.xmlwriter.php
*/
class Dia extends XMLWriter
{
/**
* Upon instantiation This starts writing the Dia XML document
*
* @see XMLWriter::openMemory()
* @see XMLWriter::setIndent()
* @see XMLWriter::startDocument()
*/
public function __construct()
{
$this->openMemory();
/*
* Set indenting using three spaces,
* so output is formatted
*/
$this->setIndent(true);
$this->setIndentString(' ');
/*
* Create the XML document
*/
$this->startDocument('1.0', 'UTF-8');
}
/**
* Starts Dia Document
*
* dia document starts by first initializing dia:diagram tag
* then dia:diagramdata contains all the attributes that needed
* to define the document, then finally a Layer starts which
* holds all the objects.
*
* @see XMLWriter::startElement()
* @see XMLWriter::writeAttribute()
* @see XMLWriter::writeRaw()
*
* @param string $paper the size of the paper/document
* @param float $topMargin top margin of the paper/document in cm
* @param float $bottomMargin bottom margin of the paper/document in cm
* @param float $leftMargin left margin of the paper/document in cm
* @param float $rightMargin right margin of the paper/document in cm
* @param string $orientation orientation of the document, portrait or landscape
*/
public function startDiaDoc(
$paper,
$topMargin,
$bottomMargin,
$leftMargin,
$rightMargin,
$orientation
): void {
$isPortrait = 'false';
if ($orientation === 'P') {
$isPortrait = 'true';
}
$this->startElement('dia:diagram');
$this->writeAttribute('xmlns:dia', 'http://www.lysator.liu.se/~alla/dia/');
$this->startElement('dia:diagramdata');
$this->writeRaw(
'<dia:attribute name="background">
<dia:color val="#ffffff"/>
</dia:attribute>
<dia:attribute name="pagebreak">
<dia:color val="#000099"/>
</dia:attribute>
<dia:attribute name="paper">
<dia:composite type="paper">
<dia:attribute name="name">
<dia:string>#' . $paper . '#</dia:string>
</dia:attribute>
<dia:attribute name="tmargin">
<dia:real val="' . $topMargin . '"/>
</dia:attribute>
<dia:attribute name="bmargin">
<dia:real val="' . $bottomMargin . '"/>
</dia:attribute>
<dia:attribute name="lmargin">
<dia:real val="' . $leftMargin . '"/>
</dia:attribute>
<dia:attribute name="rmargin">
<dia:real val="' . $rightMargin . '"/>
</dia:attribute>
<dia:attribute name="is_portrait">
<dia:boolean val="' . $isPortrait . '"/>
</dia:attribute>
<dia:attribute name="scaling">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="fitto">
<dia:boolean val="false"/>
</dia:attribute>
</dia:composite>
</dia:attribute>
<dia:attribute name="grid">
<dia:composite type="grid">
<dia:attribute name="width_x">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="width_y">
<dia:real val="1"/>
</dia:attribute>
<dia:attribute name="visible_x">
<dia:int val="1"/>
</dia:attribute>
<dia:attribute name="visible_y">
<dia:int val="1"/>
</dia:attribute>
<dia:composite type="color"/>
</dia:composite>
</dia:attribute>
<dia:attribute name="color">
<dia:color val="#d8e5e5"/>
</dia:attribute>
<dia:attribute name="guides">
<dia:composite type="guides">
<dia:attribute name="hguides"/>
<dia:attribute name="vguides"/>
</dia:composite>
</dia:attribute>'
);
$this->endElement();
$this->startElement('dia:layer');
$this->writeAttribute('name', 'Background');
$this->writeAttribute('visible', 'true');
$this->writeAttribute('active', 'true');
}
/**
* Ends Dia Document
*
* @see XMLWriter::endElement()
* @see XMLWriter::endDocument()
*/
public function endDiaDoc(): void
{
$this->endElement();
$this->endDocument();
}
/**
* Output Dia Document for download
*
* @see XMLWriter::flush()
*
* @param string $fileName name of the dia document
*/
public function showOutput($fileName): void
{
if (ob_get_clean()) {
ob_end_clean();
}
$output = $this->flush();
ResponseRenderer::getInstance()->disable();
Core::downloadHeader(
$fileName,
'application/x-dia-diagram',
strlen($output)
);
print $output;
}
}
|
