Mercurial > MadButterfly

annotate nodejs/coord.cc @ 778:61c217f8cec8

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Fix bug of transformation from user space to image space.
author Thinker K.F. Li <thinker@codemud.net>
date Mon, 30 Aug 2010 13:07:49 +0800
parents 13669b28826d
children 84853c8559cf
rev   line source
557
0ca8437a91fa Implement Indexed Property interceptors
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1 #include <stdio.h>
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2 #include <v8.h>
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3
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4 extern "C" {
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5 #include "mb.h"
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6 #include "mb_X_supp.h"
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7 #include "mb_tools.h"
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8 #include "X_supp_njs.h"
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9 }
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10
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11 #include "mbfly_njs.h"
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12
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13 #ifndef ASSERT
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14 #define ASSERT(x)
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15 #endif
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16
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17 #define OK 0
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18
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19 /*! \page jsgc How to Manage Life-cycle of Objects for Javascript.
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20 *
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21 * The life-cycle of MadButterfly ojects are simple. A object is live
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22 * when it is created and dead when it is free. When a coord or shape
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23 * is free, it is also removed from the tree. There is not way to
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24 * remove a coord or a shape without freeing it. So, if you want to
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25 * remove a coord or a shape object from the tree, you can only free
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26 * it.
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27 *
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28 * Javascript, in conventional, does not free an object. It has GC,
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29 * the engine, being used, will free an object if it is no more
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30 * referenced. So, we had better provide a removing function, but
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31 * actually free an object. In idea situation, a new MB object would
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32 * be created for and attached on the JS object, when an object added
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33 * back to the tree. But, it means we need to keep states of an
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34 * object and create a new one with the same states later. It is
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35 * complicated. So, once an object is removed, it is invalidated.
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36 *
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37 * I hope someone would implement a higher abstract layer, in JS, to
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38 * implement the idea model that recreate a new object when an
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39 * invalidated JS object being added back.
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40 *
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41 * An invalid object is the one with NULL internal field and obj.valid
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42 * == false. The binding of MadButterfly hold a reference to every
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43 * object added to the tree of a mbrt (runtime object), and remove the
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44 * reference and invalidate it when it being removed.
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45 *
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46 * For coords, they are always attached to the tree when it is valid.
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47 * So, binding hold a persistent reference to it. The reference is
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48 * purged when a coord being removed from the tree and being
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49 * invalidated.
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50 *
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51 * For any shape, it is not attached to the tree at begining, but is
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52 * attached to a tree laterly, or is collected by GC. The binding
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53 * hold a weak reference for a new shape, and upgrade to a strong
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54 * reference when the shape being added to the tree.
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55 */
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56
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57 using namespace v8;
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58
684
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59 /*! \defgroup xnjsmb_coord JS binding for coord objects.
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60 * \ingroup xnjsmb
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61 *
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62 * @{
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63 */
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64 /*! \brief Invalidate JS objects for coords and shapes in a subtree.
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65 *
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66 * \param self is the object of the root of subtree.
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67 *
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68 * \sa \ref jsgc
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69 */
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70 static void
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71 xnjsmb_coord_invalidate_subtree(coord_t *coord) {
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72 Persistent<Object> *child_hdl;
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73 Persistent<Object> *mem_hdl;
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74 coord_t *child;
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75 shape_t *mem;
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76 Handle<Value> _false = Boolean::New(0);
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77
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78 /* Invalidate all coords in the subtree */
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79 FOR_COORDS_PREORDER(coord, child) {
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80 child_hdl = (Persistent<Object> *)mb_prop_get(&child->obj.props,
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81 PROP_JSOBJ);
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82 SET(*child_hdl, "valid", _false);
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83 WRAP(*child_hdl, NULL);
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84 child_hdl->Dispose();
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85 delete child_hdl;
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86
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87 /* Invalidate members of a coord */
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88 FOR_COORD_SHAPES(child, mem) {
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89 mem_hdl = (Persistent<Object> *)mb_prop_get(&mem->obj.props,
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90 PROP_JSOBJ);
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91 SET(*mem_hdl, "valid", _false);
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92 WRAP(*mem_hdl, NULL);
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93 mem_hdl->Dispose();
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94 delete mem_hdl;
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95 }
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96 }
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97 }
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98
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99 /*! \brief Free C objects for coords and shapes in a subtree.
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100 *
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101 * \param self is the object of the root of subtree.
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102 *
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103 * \sa \ref jsgc
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104 */
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105 static void
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106 xnjsmb_coord_free_subtree(redraw_man_t *rdman, coord_t *coord) {
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107 coord_t *child, *last_child;
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108 shape_t *mem, *last_mem;
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109 int r;
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110
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111 rdman_coord_changed(rdman, coord);
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112
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113 last_child = NULL;
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114 FOR_COORDS_POSTORDER(coord, child) {
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115 if(last_child != NULL) {
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116 r = rdman_coord_free(rdman, last_child);
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117 if(r != OK)
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118 THROW_noret("Unknown error");
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119 }
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120
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121 /* Free members of a coord */
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122 last_mem = NULL;
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123 FOR_COORD_SHAPES(child, mem) {
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124 if(last_mem != NULL) {
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125 r = rdman_shape_free(rdman, last_mem);
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126 if(r != OK)
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127 THROW_noret("Unknown error");
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128 }
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
129
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
130 last_mem = mem;
741
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diff changeset
131 }
744
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diff changeset
132 if(last_mem != NULL) {
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Thinker K.F. Li <thinker@codemud.net>
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diff changeset
133 r = rdman_shape_free(rdman, last_mem);
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
134 if(r != OK)
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
135 THROW_noret("Unknown error");
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
136 }
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
137
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Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
138 last_child = child;
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
139 }
6a988e23ad2a A dirty implementation of removing subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
140 if(last_child != NULL) {
768
13669b28826d Fix issue of memory leaking for coord objects.
Thinker K.F. Li <thinker@codemud.net>
parents: 766
diff changeset
141 r = rdman_coord_free(rdman, last_child);
744
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Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
142 if(r != OK)
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Thinker K.F. Li <thinker@codemud.net>
parents: 743
diff changeset
143 THROW_noret("Unknown error");
741
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diff changeset
144 }
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Thinker K.F. Li <thinker@codemud.net>
parents: 739
diff changeset
145 }
d8764f10e141 Remove a coord from the tree in JS
Thinker K.F. Li <thinker@codemud.net>
parents: 739
diff changeset
146
680
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
147 static void
a588eefd3f04 Refactor to xnjsmb_coord_mod().
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parents: 667
diff changeset
148 xnjsmb_coord_mod(Handle<Object> self, coord_t *coord) {
a588eefd3f04 Refactor to xnjsmb_coord_mod().
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parents: 667
diff changeset
149 Persistent<Object> *self_hdl;
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parents: 667
diff changeset
150 subject_t *subject;
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Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
151 Handle<Value> subject_o;
a588eefd3f04 Refactor to xnjsmb_coord_mod().
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parents: 667
diff changeset
152
a588eefd3f04 Refactor to xnjsmb_coord_mod().
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parents: 667
diff changeset
153 /* Keep associated js object in property store for retrieving,
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parents: 667
diff changeset
154 * later, without create new js object.
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
155 */
743
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Thinker K.F. Li <thinker@codemud.net>
parents: 742
diff changeset
156 self_hdl = new Persistent<Object>();
dd1f3382d6a4 Create a persistent handle for coords and shapes correctly
Thinker K.F. Li <thinker@codemud.net>
parents: 742
diff changeset
157 *self_hdl = Persistent<Object>::New(self);
680
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
158 mb_prop_set(&coord->obj.props, PROP_JSOBJ, self_hdl);
a588eefd3f04 Refactor to xnjsmb_coord_mod().
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parents: 667
diff changeset
159
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
160 subject = coord->mouse_event;
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
161 subject_o = export_xnjsmb_auto_subject_new(subject);
a588eefd3f04 Refactor to xnjsmb_coord_mod().
Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
162 SET(self, "mouse_event", subject_o);
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163 SET(self, "valid", Boolean::New(1));
680
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Thinker K.F. Li <thinker@branda.to>
parents: 667
diff changeset
164 }
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
165
661
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Thinker K.F. Li <thinker@branda.to>
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166 static float
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
167 coord_get_index(coord_t *coord, Handle<Object> self, int idx,
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
168 const char **err) {
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
169 if(idx < 0 || idx >= 6) {
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
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diff changeset
170 *err = "Invalid index: out of range";
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diff changeset
171 return 0;
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172 }
557
0ca8437a91fa Implement Indexed Property interceptors
Thinker K.F. Li <thinker@branda.to>
parents:
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173
661
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
174 return coord_get_matrix(coord)[idx];
557
0ca8437a91fa Implement Indexed Property interceptors
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
175 }
0ca8437a91fa Implement Indexed Property interceptors
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parents:
diff changeset
176
661
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
177 static float
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
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diff changeset
178 coord_set_index(coord_t *coord, Handle<Object> self,
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
179 int idx, float v, const char **err) {
560
ce7a35abcb0d Function to instantiate coord for Javascript
Thinker K.F. Li <thinker@branda.to>
parents: 557
diff changeset
180 Handle<Object> js_rt;
557
0ca8437a91fa Implement Indexed Property interceptors
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
181 redraw_man_t *rdman;
661
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
182
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
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diff changeset
183 if(idx < 0 || idx >= 6) {
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
184 *err = "Invalid index: out of range";
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
185 return 0;
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
186 }
557
0ca8437a91fa Implement Indexed Property interceptors
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parents:
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187
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
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diff changeset
188 coord_get_matrix(coord)[idx] = v;
90c7726bc953 Replace part code of coord.cc by the code generated by generator
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diff changeset
189
560
ce7a35abcb0d Function to instantiate coord for Javascript
Thinker K.F. Li <thinker@branda.to>
parents: 557
diff changeset
190 js_rt = GET(self, "mbrt")->ToObject();
ce7a35abcb0d Function to instantiate coord for Javascript
Thinker K.F. Li <thinker@branda.to>
parents: 557
diff changeset
191 rdman = xnjsmb_rt_rdman(js_rt);
557
0ca8437a91fa Implement Indexed Property interceptors
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
192 rdman_coord_changed(rdman, coord);
0ca8437a91fa Implement Indexed Property interceptors
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parents:
diff changeset
193
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
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diff changeset
194 return v;
557
0ca8437a91fa Implement Indexed Property interceptors
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
195 }
560
ce7a35abcb0d Function to instantiate coord for Javascript
Thinker K.F. Li <thinker@branda.to>
parents: 557
diff changeset
196
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
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diff changeset
197 static void
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Thinker K.F. Li <thinker@branda.to>
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diff changeset
198 xnjsmb_coord_add_shape(coord_t *coord, Handle<Object> self,
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
199 shape_t *shape, const char **err) {
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
200 Handle<Object> js_rt;
748
56a5e08cd8af Make shapes can be removed from the tree
Thinker K.F. Li <thinker@codemud.net>
parents: 746
diff changeset
201 Persistent<Object> *shape_hdl;
566
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
202 redraw_man_t *rdman;
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
203 int r;
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
204
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
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parents: 566
diff changeset
205 js_rt = GET(self, "mbrt")->ToObject();
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
206 rdman = xnjsmb_rt_rdman(js_rt);
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
207 r = rdman_add_shape(rdman, shape, coord);
566
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
208 if(r != 0)
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
209 *err = "Unknown error";
748
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parents: 746
diff changeset
210
56a5e08cd8af Make shapes can be removed from the tree
Thinker K.F. Li <thinker@codemud.net>
parents: 746
diff changeset
211 /* see \ref jsgc */
56a5e08cd8af Make shapes can be removed from the tree
Thinker K.F. Li <thinker@codemud.net>
parents: 746
diff changeset
212 shape_hdl = (Persistent<Object> *)mb_prop_get(&shape->obj.props,
56a5e08cd8af Make shapes can be removed from the tree
Thinker K.F. Li <thinker@codemud.net>
parents: 746
diff changeset
213 PROP_JSOBJ);
56a5e08cd8af Make shapes can be removed from the tree
Thinker K.F. Li <thinker@codemud.net>
parents: 746
diff changeset
214 shape_hdl->ClearWeak();
778
61c217f8cec8 Fix bug of transformation from user space to image space.
Thinker K.F. Li <thinker@codemud.net>
parents: 768
diff changeset
215 rdman_shape_changed(rdman, shape);
566
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
216 }
6639d386db78 Function of add a shape to a coord in Javascript.
Thinker K.F. Li <thinker@branda.to>
parents: 563
diff changeset
217
741
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parents: 739
diff changeset
218 static void
745
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
219 xnjsmb_coord_remove(coord_t *coord, Handle<Object> self) {
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
220 Handle<Object> js_rt;
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
221 redraw_man_t *rdman;
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
222
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
223 if(!GET(self, "valid")->ToBoolean()->Value()) /* Invalidated object */
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
224 THROW_noret("Invalid object");
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
225
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
226 js_rt = GET(self, "mbrt")->ToObject();
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
227 rdman = xnjsmb_rt_rdman(js_rt);
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
228
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
229 xnjsmb_coord_invalidate_subtree(coord);
4ccb0553e804 Refactor code of free C objects into xnjsmb_coord_free_subtree
Thinker K.F. Li <thinker@codemud.net>
parents: 744
diff changeset
230 xnjsmb_coord_free_subtree(rdman, coord);
741
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Thinker K.F. Li <thinker@codemud.net>
parents: 739
diff changeset
231 }
d8764f10e141 Remove a coord from the tree in JS
Thinker K.F. Li <thinker@codemud.net>
parents: 739
diff changeset
232
749
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Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
233 static void
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
234 xnjsmb_coord_show(coord_t *coord, Handle<Object> self) {
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
235 Handle<Object> js_rt;
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
236 redraw_man_t *rdman;
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
237
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
238 js_rt = GET(self, "mbrt")->ToObject();
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
239 ASSERT(js_rt != NULL);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
240 rdman = xnjsmb_rt_rdman(js_rt);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
241
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
242 coord_show(coord);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
243 rdman_coord_changed(rdman, coord);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
244 }
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
245
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
246 static void
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
247 xnjsmb_coord_hide(coord_t *coord, Handle<Object> self) {
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
248 Handle<Object> js_rt;
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
249 redraw_man_t *rdman;
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
250
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
251 js_rt = GET(self, "mbrt")->ToObject();
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
252 ASSERT(js_rt != NULL);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
253 rdman = xnjsmb_rt_rdman(js_rt);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
254
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
255 coord_hide(coord);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
256 rdman_coord_changed(rdman, coord);
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
257 }
ed59e659a202 Implement binding for hide/show for shapes and coords
Thinker K.F. Li <thinker@codemud.net>
parents: 748
diff changeset
258
661
90c7726bc953 Replace part code of coord.cc by the code generated by generator
Thinker K.F. Li <thinker@branda.to>
parents: 566
diff changeset
259 #include "coord-inc.h"
562
1b6402f07cd4 Make root coord availabe for Javascript code
Thinker K.F. Li <thinker@branda.to>
parents: 560
diff changeset
260
684
b346e4699e55 Add more comment for JS binding
Thinker K.F. Li <thinker@branda.to>
parents: 680
diff changeset
261 /*! \brief This function used by \ref xnjsmb_mb_rt to wrap coord object.
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262 */
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263 Handle<Value> export_xnjsmb_auto_coord_new(coord_t *coord) {
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264 return xnjsmb_auto_coord_new(coord);
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265 }
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266
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267 /*! \brief Initialize Javascript object for root coord of a runtime.
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268 *
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269 * \param js_rt is the runtime object to create the root object for.
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270 *
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271 * After the function, js_rt.root is the object for root coord in
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272 * Javascript.
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273 */
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274 void
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275 xnjsmb_coord_mkroot(Handle<Object> js_rt) {
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276 redraw_man_t *rdman;
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277 coord_t *root;
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278 Handle<Object> obj;
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279 static int init_flag = 0;
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280
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281 if(!init_flag) {
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282 xnjsmb_auto_coord_init();
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283 init_flag = 1;
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284 }
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285
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286 rdman = xnjsmb_rt_rdman(js_rt);
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287 root = rdman_get_root(rdman);
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288 obj = xnjsmb_auto_coord_new(root).As<Object>();
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289 SET(obj, "mbrt", js_rt);
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290
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291 SET(js_rt, "root", obj);
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292 }
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293
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294 /* @} */