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| 1 | +/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil; -*- */ |
| 2 | + |
1 | 3 | #include "engine.h" |
| 4 | +#include "zinnia.h" |
2 | 5 |
|
3 | | -typedef struct _IBusXkbLayoutEngine IBusXkbLayoutEngine; |
4 | | -typedef struct _IBusXkbLayoutEngineClass IBusXkbLayoutEngineClass; |
| 6 | +typedef struct _IBusZinniaEngine IBusZinniaEngine; |
| 7 | +typedef struct _IBusZinniaEngineClass IBusZinniaEngineClass; |
5 | 8 |
|
6 | | -struct _IBusXkbLayoutEngine { |
| 9 | +struct _IBusZinniaEngine { |
7 | 10 | IBusEngine parent; |
| 11 | + zinnia_recognizer_t *recognizer; |
| 12 | + zinnia_character_t *character; |
| 13 | + zinnia_result_t *result; |
| 14 | + size_t stroke_count; |
8 | 15 | }; |
9 | 16 |
|
10 | | -struct _IBusXkbLayoutEngineClass { |
| 17 | +struct _IBusZinniaEngineClass { |
11 | 18 | IBusEngineClass parent; |
12 | 19 | }; |
13 | 20 |
|
14 | 21 | /* functions prototype */ |
15 | | -static void ibus_xkb_layout_engine_class_init (IBusXkbLayoutEngineClass *klass); |
16 | | -static void ibus_xkb_layout_engine_init (IBusXkbLayoutEngine *engine); |
17 | | -static void ibus_xkb_layout_engine_destroy (IBusXkbLayoutEngine *engine); |
18 | | -static gboolean ibus_xkb_layout_engine_process_key_event(IBusEngine *engine, |
19 | | - guint keyval, |
20 | | - guint keycode, |
21 | | - guint modifiers); |
| 22 | +static void ibus_zinnia_engine_class_init (IBusZinniaEngineClass *klass); |
| 23 | +static void ibus_zinnia_engine_init (IBusZinniaEngine *engine); |
| 24 | +static void ibus_zinnia_engine_destroy (IBusZinniaEngine *engine); |
| 25 | +static void ibus_zinnia_engine_candidate_clicked (IBusEngine *engine, |
| 26 | + guint index, |
| 27 | + guint button, |
| 28 | + guint state); |
| 29 | +static void ibus_zinnia_engine_process_hand_writing_event |
| 30 | + (IBusEngine *engine, |
| 31 | + const gdouble *coordinates, |
| 32 | + guint coordinates_len); |
| 33 | +static void ibus_zinnia_engine_cancel_hand_writing |
| 34 | + (IBusEngine *engine, |
| 35 | + guint n_strokes); |
| 36 | + |
| 37 | +G_DEFINE_TYPE (IBusZinniaEngine, ibus_zinnia_engine, IBUS_TYPE_ENGINE) |
| 38 | + |
| 39 | +static const gint zinnia_xy = 1000; |
| 40 | +static const gchar model_path[] = "/usr/share/tegaki/models/zinnia/handwriting-ja.model"; |
| 41 | +/* FIXME support Chinese and other languages */ |
22 | 42 |
|
23 | | -G_DEFINE_TYPE (IBusXkbLayoutEngine, ibus_xkb_layout_engine, IBUS_TYPE_ENGINE) |
| 43 | +static gint |
| 44 | +normalize(gdouble x_or_y) |
| 45 | +{ |
| 46 | + gint result = (gint)(x_or_y * zinnia_xy); |
| 47 | + if (result < 0) |
| 48 | + return 0; |
| 49 | + if (result > zinnia_xy) |
| 50 | + return zinnia_xy; |
| 51 | + return result; |
| 52 | +} |
24 | 53 |
|
25 | 54 | static void |
26 | | -ibus_xkb_layout_engine_class_init (IBusXkbLayoutEngineClass *klass) |
| 55 | +ibus_zinnia_engine_class_init (IBusZinniaEngineClass *klass) |
27 | 56 | { |
28 | 57 | IBusObjectClass *ibus_object_class = IBUS_OBJECT_CLASS (klass); |
29 | 58 | IBusEngineClass *engine_class = IBUS_ENGINE_CLASS (klass); |
30 | 59 |
|
31 | | - ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_xkb_layout_engine_destroy; |
| 60 | + ibus_object_class->destroy = (IBusObjectDestroyFunc) ibus_zinnia_engine_destroy; |
32 | 61 |
|
33 | | - engine_class->process_key_event = ibus_xkb_layout_engine_process_key_event; |
| 62 | + engine_class->candidate_clicked = ibus_zinnia_engine_candidate_clicked; |
| 63 | + engine_class->process_hand_writing_event = ibus_zinnia_engine_process_hand_writing_event; |
| 64 | + engine_class->cancel_hand_writing = ibus_zinnia_engine_cancel_hand_writing; |
34 | 65 | } |
35 | 66 |
|
36 | 67 | static void |
37 | | -ibus_xkb_layout_engine_init (IBusXkbLayoutEngine *xkb_layout) |
| 68 | +ibus_zinnia_engine_init (IBusZinniaEngine *zinnia) |
38 | 69 | { |
| 70 | + zinnia->recognizer = zinnia_recognizer_new (); |
| 71 | + zinnia->character = zinnia_character_new (); |
| 72 | + |
| 73 | + g_return_if_fail (zinnia_recognizer_open (zinnia->recognizer, model_path)); |
| 74 | + zinnia_character_clear (zinnia->character); |
| 75 | + zinnia_character_set_width (zinnia->character, zinnia_xy); |
| 76 | + zinnia_character_set_height (zinnia->character, zinnia_xy); |
| 77 | + zinnia->result = NULL; |
| 78 | + zinnia->stroke_count = 0; |
39 | 79 | } |
40 | 80 |
|
41 | 81 | static void |
42 | | -ibus_xkb_layout_engine_destroy (IBusXkbLayoutEngine *xkb_layout) |
| 82 | +ibus_zinnia_engine_destroy (IBusZinniaEngine *zinnia) |
43 | 83 | { |
44 | | - ((IBusObjectClass *) ibus_xkb_layout_engine_parent_class)->destroy ((IBusObject *)xkb_layout); |
| 84 | + zinnia_character_destroy (zinnia->character); |
| 85 | + zinnia_recognizer_destroy (zinnia->recognizer); |
| 86 | + if (zinnia->result != NULL) { |
| 87 | + zinnia_result_destroy (zinnia->result); |
| 88 | + } |
| 89 | + ((IBusObjectClass *) ibus_zinnia_engine_parent_class)->destroy ((IBusObject *) zinnia); |
45 | 90 | } |
46 | 91 |
|
47 | | -static gboolean |
48 | | -ibus_xkb_layout_engine_process_key_event (IBusEngine *engine, |
49 | | - guint keyval, |
50 | | - guint keycode, |
51 | | - guint modifiers) |
| 92 | +static void |
| 93 | +ibus_zinnia_engine_candidate_clicked (IBusEngine *engine, |
| 94 | + guint index, |
| 95 | + guint button, |
| 96 | + guint state) |
| 97 | +{ |
| 98 | + IBusZinniaEngine *zinnia = (IBusZinniaEngine *) engine; |
| 99 | + if (zinnia->result == NULL || index >= zinnia_result_size (zinnia->result)) { |
| 100 | + return; |
| 101 | + } |
| 102 | + IBusText *text = ibus_text_new_from_string (zinnia_result_value (zinnia->result, index)); |
| 103 | + ibus_engine_commit_text (engine, text); |
| 104 | + ibus_engine_hide_lookup_table (engine); |
| 105 | +} |
| 106 | + |
| 107 | +static void |
| 108 | +ibus_zinnia_engine_process_hand_writing_event (IBusEngine *engine, |
| 109 | + const gdouble *coordinates, |
| 110 | + guint coordinates_len) |
52 | 111 | { |
53 | | - /* TODO: Support Compose/Dead keys */ |
54 | | - return FALSE; |
| 112 | + static const gint max_candidates = 10; |
| 113 | + IBusZinniaEngine *zinnia = (IBusZinniaEngine *) engine; |
| 114 | + guint i; |
| 115 | + |
| 116 | + g_return_if_fail (coordinates_len >= 4); |
| 117 | + g_return_if_fail ((coordinates_len & 1) == 0); |
| 118 | + |
| 119 | + for (i = 1; i < coordinates_len; i += 2) { |
| 120 | + zinnia_character_add (zinnia->character, |
| 121 | + zinnia->stroke_count, |
| 122 | + normalize(coordinates[i - 1]), |
| 123 | + normalize(coordinates[i])); |
| 124 | + } |
| 125 | + zinnia->stroke_count++; |
| 126 | + |
| 127 | + if (zinnia->result != NULL) { |
| 128 | + zinnia_result_destroy (zinnia->result); |
| 129 | + } |
| 130 | + zinnia->result = zinnia_recognizer_classify (zinnia->recognizer, |
| 131 | + zinnia->character, |
| 132 | + max_candidates); |
| 133 | + if (zinnia->result == NULL || zinnia_result_size (zinnia->result) == 0) { |
| 134 | + ibus_engine_hide_lookup_table (engine); |
| 135 | + } else { |
| 136 | + IBusLookupTable *table = ibus_lookup_table_new (max_candidates, /* page size */ |
| 137 | + 0, /* cursur pos */ |
| 138 | + FALSE, /* cursor visible */ |
| 139 | + TRUE); /* round */ |
| 140 | + ibus_lookup_table_set_orientation (table, IBUS_ORIENTATION_VERTICAL); |
| 141 | + |
| 142 | + for (i = 0; i < zinnia_result_size (zinnia->result); i++) { |
| 143 | + IBusText *text = ibus_text_new_from_string (zinnia_result_value (zinnia->result, i)); |
| 144 | + ibus_lookup_table_append_candidate (table, text); |
| 145 | + } |
| 146 | + ibus_engine_update_lookup_table (engine, table, TRUE); |
| 147 | + } |
| 148 | +} |
| 149 | + |
| 150 | +static void |
| 151 | +ibus_zinnia_engine_cancel_hand_writing (IBusEngine *engine, |
| 152 | + guint n_strokes) |
| 153 | +{ |
| 154 | + IBusZinniaEngine *zinnia = (IBusZinniaEngine *) engine; |
| 155 | + |
| 156 | + zinnia_character_clear (zinnia->character); |
| 157 | + zinnia->stroke_count = 0; |
| 158 | + ibus_engine_hide_lookup_table (engine); |
| 159 | + |
| 160 | + /* FIXME support n_strokes != 0 cases */ |
55 | 161 | } |
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