write ZYFallbackEditor.cc

3 files changed, 174 insertions, 0 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index b749f14..a8534ff 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -42,6 +42,7 @@ ibus_engine_libzhuyin_c_sources = \
 	ZYSymbols.cc \
 	ZYZBuiltinSymbolSection.cc \
 	ZYZPhoneticSection.cc \
+	ZYFallbackEditor.cc \
 	ZYEngine.cc \
 	ZYZZhuyinEngine.cc \
 	ZYMain.cc \
@@ -69,6 +70,7 @@ ibus_engine_libzhuyin_h_sources = \
 	ZYPointer.h \
 	ZYProperty.h \
 	ZYRawEditor.h \
+	ZYFallbackEditor.h \
 	ZYSignal.h \
 	ZYString.h \
 	ZYText.h \
diff --git a/src/ZYFallbackEditor.cc b/src/ZYFallbackEditor.cc
new file mode 100644
index 0000000..b23985b
--- /dev/null
+++ b/src/ZYFallbackEditor.cc
@@ -0,0 +1,171 @@
+/* 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 "ZYFallbackEditor.h"
+#include <assert.h>
+#include "ZYSymbols.h"
+#include "ZYZhuyinProperties.h"
+
+namespace ZY {
+
+inline gboolean
+FallbackEditor::processPunct (guint keyval, guint keycode, guint modifiers)
+{
+    guint cmshm_modifiers = cmshm_filter (modifiers);
+
+    if (G_UNLIKELY (keyval == IBUS_period && cmshm_modifiers == IBUS_CONTROL_MASK)) {
+        m_props.toggleModeFullPunct ();
+        return TRUE;
+    }
+
+    /* check ctrl, alt, hyper, supper masks */
+    if (cmshm_modifiers != 0)
+        return FALSE;
+
+    /* English mode */
+    if (!m_props.modeChinese ()) {
+
+        /* Punctuation character */
+        if (is_half_punct (keyval)) {
+            if (G_UNLIKELY (m_props.modeFullPunct ())) {
+                String punct;
+                half_punct_to_full_punct (keyval, punct);
+                commit (punct);
+            } else {
+                commit (keyval);
+            }
+            return TRUE;
+        }
+
+    } else {
+        /* Chinese mode, handled by ZhuyinEditor or PinyinEditor. */
+        assert (FALSE);
+    }
+    return TRUE;
+}
+
+inline gboolean
+FallbackEditor::processEnglish (guint keyval, guint keycode, guint modifiers) {
+    guint cmshm_modifiers = cmshm_filter (modifiers);
+
+    /* check ctrl, alt, hyper, supper masks */
+    if (cmshm_modifiers != 0)
+        return FALSE;
+
+    /* English mode */
+    if (!m_props.modeChinese ()) {
+
+        /* English character */
+        if (is_half_english (keyval)) {
+            if (G_UNLIKELY (m_props.modeFullEnglish ())) {
+                String english;
+                half_english_to_full_english (keyval, english);
+                commit (english);
+            } else {
+                commit (keyval);
+            }
+            return TRUE;
+        }
+
+    } else {
+        /* Chinese mode, handled by ZhuyinEditor or PinyinEditor. */
+        assert (FALSE);
+    }
+    return TRUE;
+
+}
+
+gboolean
+FallbackEditor::processKeyEvent (guint keyval, guint keycode, guint modifiers)
+{
+    gboolean retval = FALSE;
+
+    modifiers &= (IBUS_SHIFT_MASK |
+                  IBUS_CONTROL_MASK |
+                  IBUS_MOD1_MASK |
+                  IBUS_SUPER_MASK |
+                  IBUS_HYPER_MASK |
+                  IBUS_META_MASK);
+
+    switch (keyval) {
+        /* numbers */
+        case IBUS_KP_0 ... IBUS_KP_9:
+            keyval = keyval - IBUS_KP_0 + IBUS_0;
+        case IBUS_0 ... IBUS_9:
+        /* letters */
+        case IBUS_a ... IBUS_z:
+        case IBUS_A ... IBUS_Z:
+            if (modifiers == 0) {
+                retval = processEnglish (keyval, keycode, modifiers);
+            }
+            break;
+        /* punct */
+        case IBUS_exclam ... IBUS_slash:
+        case IBUS_colon ... IBUS_at:
+        case IBUS_bracketleft ... IBUS_quoteleft:
+        case IBUS_braceleft ... IBUS_asciitilde:
+            retval = processPunct (keyval, keycode, modifiers);
+            break;
+        case IBUS_KP_Equal:
+            retval = processPunct ('=', keycode, modifiers);
+            break;
+        case IBUS_KP_Multiply:
+            retval = processPunct ('*', keycode, modifiers);
+            break;
+        case IBUS_KP_Add:
+            retval = processPunct ('+', keycode, modifiers);
+            break;
+        #if 0
+        case IBUS_KP_Separator:
+            retval = processPunct (IBUS_separator, keycode, modifiers);
+            break;
+        #endif
+        case IBUS_KP_Subtract:
+            retval = processPunct ('-', keycode, modifiers);
+            break;
+        case IBUS_KP_Decimal:
+            retval = processPunct ('.', keycode, modifiers);
+            break;
+        case IBUS_KP_Divide:
+            retval = processPunct ('/', keycode, modifiers);
+            break;
+        /* space */
+        case IBUS_KP_Space:
+            keyval = IBUS_space;
+        case IBUS_space:
+            retval = processEnglish (keyval, keycode, modifiers);
+            break;
+        /* others */
+        default:
+            break;
+    }
+
+    return retval;
+}
+
+void
+FallbackEditor::reset (void) {
+    m_quote = TRUE;
+    m_double_quote = TRUE;
+    m_prev_committed_char = 0;
+}
+
+};
diff --git a/src/ZYFallbackEditor.h b/src/ZYFallbackEditor.h
index bbe87d4..97c656e 100644
--- a/src/ZYFallbackEditor.h
+++ b/src/ZYFallbackEditor.h
@@ -68,6 +68,7 @@ private:
     }
 
     gboolean processPunct (guint keyval, guint keycode, guint modifiers);
+    gboolean processEnglish (guint keyval, guint keycode, guint modifiers);
 
 private:
     gboolean m_quote;