write ZYZUserSymbolShownSection.cc

1 files changed, 104 insertions, 0 deletions

diff --git a/src/ZYZUserSymbolShownSection.cc b/src/ZYZUserSymbolShownSection.cc
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+++ b/src/ZYZUserSymbolShownSection.cc
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+/* vim:set et ts=4 sts=4:
+ *
+ * ibus-libzhuyin - New Zhuyin engine based on libzhuyin for IBus
+ *
+ * Copyright (c) 2014 Peng Wu <alexepico@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include "ZYZUserSymbolShownSection.h"
+#include <assert.h>
+#include "ZYSymbols.h"
+
+namespace ZY {
+
+UserSymbolShownSection::UserSymbolShownSection (PhoneticEditor & editor,
+                                                ZhuyinProperties & props) :
+    SymbolSection (editor, props)
+{
+    m_type = BUILTIN_SYMBOL_TYPE;
+}
+
+UserSymbolShownSection::~UserSymbolShownSection ()
+{
+}
+
+bool
+UserSymbolShownSection::initCandidates (zhuyin_instance_t * instance,
+                                        const String & lookup)
+{
+    if (!lookup)
+        return false;
+
+    m_candidates.clear ();
+
+    m_lookup = lookup;
+
+    /* get the symbols from lookup string. */
+    const gchar * str = m_lookup.c_str ();
+    gboolean valid = g_utf8_validate (str, -1, NULL);
+    g_return_val_if_fail (valid, false);
+
+    while (*str) {
+        gunichar unichar = g_utf8_get_char (str);
+        String utf8ch;
+        utf8ch.appendUnichar (unichar);
+        m_candidates.push_back (utf8ch);
+        str = g_utf8_next_char (str);
+    }
+
+    return true;
+}
+
+bool
+UserSymbolShownSection::fillLookupTableByPage ()
+{
+    LookupTable & lookup_table = getLookupTable ();
+
+    guint len = m_candidates.size ();
+
+    guint filled_nr = lookup_table.size ();
+    guint page_size = lookup_table.pageSize ();
+
+    /* fill lookup table by libzhuyin get candidates. */
+    guint need_nr = MIN (page_size, len - filled_nr);
+    g_assert (need_nr >=0);
+    if (need_nr == 0)
+        return FALSE;
+
+    for (guint i = filled_nr; i < filled_nr + need_nr; i++) {
+        if (i >= len)  /* no more candidates */
+            break;
+
+        Text text (m_candidates[i]);
+        lookup_table.appendCandidate (text);
+    }
+
+    return TRUE;
+}
+
+int
+UserSymbolShownSection::selectCandidate (guint index)
+{
+    if (index >= m_candidates.size ())
+        return 0;
+
+    m_choice = m_candidates[index];
+    assert (1 == m_choice.utf8Length ());
+    return 1;
+}
+
+};