write resizeInstances method

4 files changed, 55 insertions, 0 deletions

diff --git a/src/ZYEnhancedText.cc b/src/ZYEnhancedText.cc
index 2a3092f..25692cd 100644
--- a/src/ZYEnhancedText.cc
+++ b/src/ZYEnhancedText.cc
@@ -304,4 +304,29 @@ erase_input_sequence(String & enhanced_text, size_t offset, size_t length)
     return true;
 }
 
+size_t
+get_number_of_phonetic_sections (String & enhanced_text)
+{
+    size_t num = 0;
+    size_t start_pos = 0, end_pos = 0;
+
+    while (end_pos != enhanced_text.size ()) {
+        section_t type = probe_section_quick (enhanced_text, start_pos);
+
+        if (PHONETIC_SECTION == type) {
+            String section;
+            get_phonetic_section (enhanced_text, start_pos, end_pos, section);
+            ++num;
+        }
+
+        if (SYMBOL_SECTION == type) {
+            String type, lookup, choice;
+            get_symbol_section (enhanced_text, start_pos, end_pos,
+                                type, lookup, choice);
+        }
+    }
+
+    return num;
+}
+
 };
diff --git a/src/ZYEnhancedText.h b/src/ZYEnhancedText.h
index 2c0a590..c1ff10a 100644
--- a/src/ZYEnhancedText.h
+++ b/src/ZYEnhancedText.h
@@ -64,6 +64,9 @@ insert_symbol(String & enhanced_text, size_t offset,
 bool
 erase_input_sequence(String & enhanced_text, size_t offset, size_t length);
 
+size_t
+get_number_of_phonetic_sections (String & enhanced_text);
+
 };
 
 #endif
diff --git a/src/ZYZPhoneticEditor.cc b/src/ZYZPhoneticEditor.cc
index b11511f..931bb13 100644
--- a/src/ZYZPhoneticEditor.cc
+++ b/src/ZYZPhoneticEditor.cc
@@ -414,4 +414,29 @@ PhoneticEditor::moveCursorToEnd (void)
     return TRUE;
 }
 
+void
+PhoneticEditor::resizeInstances (void)
+{
+    size_t num = get_number_of_phonetic_sections (m_text);
+
+    /* re-allocate the zhuyin instances */
+    if (num > m_instances.size ()) { /* need more instances. */
+        for (size_t i = m_instances.size (); i < num; ++i) {
+            /* allocate one instance */
+            zhuyin_instance_t * instance = NULL;
+            assert (NULL != instance);
+            m_instances.push_back (instance);
+        }
+    }
+
+    if (num < m_instances.size ()) { /* free some instances. */
+        for (size_t i = num; i < m_instances.size (); ++i) {
+            zhuyin_free_instance (m_instances[i]);
+            m_instances[i] = NULL;
+        }
+        m_instances.resize (num);
+    }
+}
+
+
 };
diff --git a/src/ZYZPhoneticEditor.h b/src/ZYZPhoneticEditor.h
index 94afb60..d9d421b 100644
--- a/src/ZYZPhoneticEditor.h
+++ b/src/ZYZPhoneticEditor.h
@@ -82,6 +82,8 @@ protected:
     virtual void updatePreeditText (void) = 0;
     virtual void updateZhuyin (void) = 0;
 
+    void resizeInstances (void);
+
     /* varibles */
     LookupTable                 m_lookup_table;
     String                      m_buffer;