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1 : /*
2 : +----------------------------------------------------------------------+
3 : | For PHP Version 8.2+ |
4 : +----------------------------------------------------------------------+
5 : | Copyright (c) The PHP Group |
6 : +----------------------------------------------------------------------+
7 : | This source file is subject to version 3.01 of the PHP license, |
8 : | that is bundled with this package in the file LICENSE, and is |
9 : | available through the world-wide-web at the following url: |
10 : | http://www.php.net/license/3_01.txt |
11 : | If you did not receive a copy of the PHP license and are unable to |
12 : | obtain it through the world-wide-web, please send a note to |
13 : | license@php.net so we can mail you a copy immediately. |
14 : +----------------------------------------------------------------------+
15 : | Authors: Michael Maclean <mgdm@php.net> |
16 : | David Marín <davefx@gmail.com> |
17 : | Marcel Bolten <github@marcelbolten.de> |
18 : +----------------------------------------------------------------------+
19 : */
20 :
21 : #ifdef HAVE_CONFIG_H
22 : #include "config.h"
23 : #endif
24 :
25 : #include "php.h"
26 : #include "php_pango.h"
27 : #include "pango_cairo_layout_arginfo.h"
28 :
29 : #include "zend_exceptions.h"
30 :
31 : zend_class_entry *pango_ce_pango_cairo_layout;
32 :
33 0 : PHP_PANGO_API zend_class_entry* php_pango_cairo_get_layout_ce() {
34 0 : return pango_ce_pango_cairo_layout;
35 : }
36 :
37 : static zend_object_handlers pango_cairo_layout_object_handlers;
38 :
39 17 : pango_layout_object *pango_cairo_layout_fetch_object(zend_object *object)
40 : {
41 17 : return (pango_layout_object *) ((char*)(object) - XtOffsetOf(pango_layout_object, std));
42 : }
43 :
44 : /* {{{ Creates a PangoLayout based on the Cairo Context object */
45 17 : PHP_METHOD(PangoCairo_Layout, __construct)
46 : {
47 17 : zval *cairo_context_zval = NULL;
48 : cairo_context_object *cairo_context_object;
49 : pango_layout_object *layout_object;
50 :
51 17 : ZEND_PARSE_PARAMETERS_START(1, 1)
52 30 : Z_PARAM_OBJECT_OF_CLASS(cairo_context_zval, php_cairo_get_context_ce())
53 17 : ZEND_PARSE_PARAMETERS_END();
54 :
55 14 : cairo_context_object = Z_CAIRO_CONTEXT_P(cairo_context_zval);
56 :
57 28 : layout_object = Z_PANGO_LAYOUT_P(getThis());
58 14 : layout_object->layout = pango_cairo_create_layout(cairo_context_object->context);
59 :
60 14 : if (layout_object->layout == NULL) {
61 0 : zend_throw_exception(
62 : pango_ce_pango_exception,
63 : "Could not create the Pango layout",
64 : 0
65 : );
66 0 : RETURN_THROWS();
67 : }
68 :
69 14 : ZVAL_COPY(&layout_object->cairo_context_zv, cairo_context_zval);
70 : }
71 : /* }}} */
72 :
73 : /* {{{ Return the Cairo Context for the current layout */
74 2 : PHP_METHOD(PangoCairo_Layout, getCairoContext)
75 : {
76 : pango_layout_object *layout_object;
77 :
78 2 : ZEND_PARSE_PARAMETERS_NONE();
79 :
80 2 : layout_object = Z_PANGO_LAYOUT_P(getThis());
81 :
82 3 : RETURN_ZVAL(&layout_object->cairo_context_zv, 1, 0);
83 : }
84 : /* }}} */
85 :
86 :
87 : /* {{{ Updates the private PangoContext of a PangoLayout to match the current transformation
88 : and target surface of a Cairo context. */
89 2 : PHP_METHOD(PangoCairo_Layout, updateLayout)
90 : {
91 : pango_layout_object *layout_object;
92 : cairo_context_object *cairo_context_object;
93 : zval *cairo_context_zv;
94 :
95 2 : ZEND_PARSE_PARAMETERS_NONE();
96 :
97 2 : layout_object = Z_PANGO_LAYOUT_P(getThis());
98 1 : cairo_context_object = Z_CAIRO_CONTEXT_P(&layout_object->cairo_context_zv);
99 1 : pango_cairo_update_layout(cairo_context_object->context, layout_object->layout);
100 : }
101 : /* }}} */
102 :
103 : /* {{{ Draws a PangoLayoutLine in the specified cairo context. */
104 2 : PHP_METHOD(PangoCairo_Layout, showLayout)
105 : {
106 : pango_layout_object *layout_object;
107 : cairo_context_object *context_object;
108 :
109 2 : ZEND_PARSE_PARAMETERS_NONE();
110 :
111 2 : layout_object = Z_PANGO_LAYOUT_P(getThis());
112 1 : context_object = Z_CAIRO_CONTEXT_P(&layout_object->cairo_context_zv);
113 1 : pango_cairo_show_layout(context_object->context, layout_object->layout);
114 : }
115 : /* }}} */
116 :
117 : /* {{{ Adds the specified text to the current path in the specified cairo context. */
118 2 : PHP_METHOD(PangoCairo_Layout, layoutPath)
119 : {
120 : pango_layout_object *layout_object;
121 : cairo_context_object *context_object;
122 :
123 2 : ZEND_PARSE_PARAMETERS_NONE();
124 :
125 2 : layout_object = Z_PANGO_LAYOUT_P(getThis());
126 1 : context_object = Z_CAIRO_CONTEXT_P(&layout_object->cairo_context_zv);
127 1 : pango_cairo_layout_path(context_object->context, layout_object->layout);
128 : }
129 : /* }}} */
130 :
131 :
132 : /* ----------------------------------------------------------------
133 : \Pango\Layout Object management
134 : ------------------------------------------------------------------*/
135 :
136 : /* {{{ */
137 17 : static void pango_cairo_layout_free_obj(zend_object *zobj)
138 : {
139 17 : pango_layout_object *intern = pango_cairo_layout_fetch_object(zobj);
140 :
141 17 : if (!intern) {
142 0 : return;
143 : }
144 :
145 17 : if (intern->layout) {
146 14 : g_object_unref(intern->layout);
147 : }
148 :
149 17 : zval_ptr_dtor(&intern->pango_context_zv);
150 17 : zval_ptr_dtor(&intern->cairo_context_zv);
151 :
152 17 : zend_object_std_dtor(&intern->std);
153 : }
154 : /* }}} */
155 :
156 : /* {{{ */
157 17 : static zend_object* pango_cairo_layout_obj_ctor(zend_class_entry *ce, pango_layout_object **intern)
158 : {
159 17 : pango_layout_object *object = ecalloc(1, sizeof(pango_layout_object) + zend_object_properties_size(ce));
160 :
161 17 : ZVAL_UNDEF(&object->cairo_context_zv);
162 17 : ZVAL_UNDEF(&object->pango_context_zv);
163 :
164 17 : zend_object_std_init(&object->std, ce);
165 :
166 17 : object->std.handlers = &pango_cairo_layout_object_handlers;
167 17 : *intern = object;
168 :
169 17 : return &object->std;
170 : }
171 : /* }}} */
172 :
173 : /* {{{ */
174 17 : static zend_object* pango_cairo_layout_create_object(zend_class_entry *ce)
175 : {
176 17 : pango_layout_object *intern = NULL;
177 17 : zend_object *return_value = pango_cairo_layout_obj_ctor(ce, &intern);
178 :
179 17 : object_properties_init(&intern->std, ce);
180 17 : return return_value;
181 : }
182 : /* }}} */
183 :
184 : /* {{{ PHP_MINIT_FUNCTION */
185 194 : PHP_MINIT_FUNCTION(pango_cairo_layout)
186 : {
187 194 : memcpy(
188 : &pango_cairo_layout_object_handlers,
189 : zend_get_std_object_handlers(),
190 : sizeof(zend_object_handlers)
191 : );
192 :
193 194 : pango_cairo_layout_object_handlers.offset = XtOffsetOf(pango_layout_object, std);
194 194 : pango_cairo_layout_object_handlers.free_obj = pango_cairo_layout_free_obj;
195 :
196 194 : pango_ce_pango_cairo_layout = register_class_PangoCairo_Layout(php_pango_get_layout_ce());
197 194 : pango_ce_pango_cairo_layout->create_object = pango_cairo_layout_create_object;
198 :
199 194 : return SUCCESS;
200 : }
201 : /* }}} */
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