diff options
Diffstat (limited to 'src/PunctEditor.cc')
| -rw-r--r-- | src/PunctEditor.cc | 480 |
1 files changed, 480 insertions, 0 deletions
diff --git a/src/PunctEditor.cc b/src/PunctEditor.cc new file mode 100644 index 0000000..02958df --- /dev/null +++ b/src/PunctEditor.cc @@ -0,0 +1,480 @@ +#include <cstdio> +#include "PunctEditor.h" + +#define CMSHM_MASK \ + (IBUS_CONTROL_MASK | \ + IBUS_MOD1_MASK | \ + IBUS_SUPER_MASK | \ + IBUS_HYPER_MASK | \ + IBUS_META_MASK) + +#define CMSHM_FILTER(modifiers) \ + (modifiers & (CMSHM_MASK)) + +namespace PY { + +#include "PunctTable.h" + +PunctEditor::PunctEditor (PinyinProperties & props) + : Editor (props), + m_punct_mode (FALSE), + m_lookup_table (Config::pageSize ()) +{ +} + +gboolean +PunctEditor::insert (gchar ch) +{ + m_text.insert (m_cursor++, ch); + update (); + return TRUE; +} + +inline gboolean +PunctEditor::processSpace (guint keyval, guint keycode, guint modifiers) +{ + if (!m_text) + return FALSE; + if (CMSHM_FILTER (modifiers) != 0) + return TRUE; + if (m_lookup_table.size () != 0) { + selectCandidate (m_lookup_table.cursorPos ()); + } + else { + commit (); + } + return TRUE; +} + +gboolean +PunctEditor::processPunct (guint keyval, guint keycode, guint modifiers) +{ + if (CMSHM_FILTER (modifiers) != 0) + return TRUE; + + if (m_punct_mode == FALSE) { + if (keyval == IBUS_grave) { + m_punct_mode = TRUE; + return insert('`'); + } + return FALSE; + } + + if (m_text.length () >= 2) + return TRUE; + + switch (keyval) { + case IBUS_grave: /* ` */ + case IBUS_asciitilde: /* ~ */ + case IBUS_exclam: /* ~ */ + case IBUS_at: /* @ */ + case IBUS_numbersign: /* # */ + case IBUS_dollar: /* $ */ + case IBUS_percent: /* % */ + case IBUS_asciicircum: /* ^ */ + case IBUS_ampersand: /* & */ + case IBUS_asterisk: /* * */ + case IBUS_parenleft: /* ( */ + case IBUS_parenright: /* ) */ + case IBUS_minus: /* - */ + case IBUS_underscore: /* _ */ + case IBUS_equal: /* = */ + case IBUS_plus: /* + */ + case IBUS_bracketleft: /* [ */ + case IBUS_bracketright: /* ] */ + case IBUS_braceleft: /* { */ + case IBUS_braceright: /* } */ + case IBUS_backslash: /* \ */ + case IBUS_bar: /* | */ + case IBUS_colon: /* : */ + case IBUS_semicolon: /* ; */ + case IBUS_apostrophe: /* ' */ + case IBUS_quotedbl: /* " */ + case IBUS_comma: /* , */ + case IBUS_period: /* . */ + case IBUS_less: /* < */ + case IBUS_greater: /* > */ + case IBUS_slash: /* / */ + case IBUS_question: /* ? */ + case IBUS_0...IBUS_9: + case IBUS_a...IBUS_z: + case IBUS_A...IBUS_Z: + return insert(keyval); + default: + return FALSE; + } +} + +gboolean +PunctEditor::processKeyEvent (guint keyval, guint keycode, guint modifiers) +{ + modifiers &= (IBUS_SHIFT_MASK | + IBUS_CONTROL_MASK | + IBUS_MOD1_MASK | + IBUS_SUPER_MASK | + IBUS_HYPER_MASK | + IBUS_META_MASK | + IBUS_LOCK_MASK); + + switch (keyval) { + case IBUS_space: + return processSpace (keyval, keycode, modifiers); + + case IBUS_Return: + case IBUS_KP_Enter: + commit (); + return TRUE; + + case IBUS_Escape: + reset (); + return TRUE; + + case IBUS_BackSpace: + removeCharBefore (); + return TRUE; + + case IBUS_Delete: + case IBUS_KP_Delete: + removeCharAfter (); + return TRUE; + + case IBUS_Left: + case IBUS_KP_Left: + moveCursorLeft (); + return TRUE; + + case IBUS_Right: + case IBUS_KP_Right: + moveCursorRight (); + return TRUE; + + case IBUS_Home: + case IBUS_KP_Home: + moveCursorToBegin (); + return TRUE; + + case IBUS_End: + case IBUS_KP_End: + moveCursorToEnd (); + return TRUE; + + case IBUS_Up: + case IBUS_KP_Up: + cursorUp (); + return TRUE; + + case IBUS_Down: + case IBUS_KP_Down: + cursorDown (); + return TRUE; + + case IBUS_Page_Up: + case IBUS_KP_Page_Up: + pageUp (); + return TRUE; + + case IBUS_Page_Down: + case IBUS_KP_Page_Down: + case IBUS_Tab: + pageDown (); + return TRUE; + default: + return processPunct(keyval, keycode, modifiers); + } +} + +void +PunctEditor::pageUp (void) +{ + if (G_LIKELY (m_lookup_table.pageUp ())) { + updateLookupTableFast (m_lookup_table, TRUE); + updatePreeditText (); + updateAuxiliaryText (); + } +} + +void +PunctEditor::pageDown (void) +{ + if (G_LIKELY (m_lookup_table.pageDown ())) { + updateLookupTableFast (m_lookup_table, TRUE); + updatePreeditText (); + updateAuxiliaryText (); + } +} + +void +PunctEditor::cursorUp (void) +{ + if (G_LIKELY (m_lookup_table.cursorUp ())) { + updateLookupTableFast (m_lookup_table, TRUE); + updatePreeditText (); + updateAuxiliaryText (); + } +} + +void +PunctEditor::cursorDown (void) +{ + if (G_LIKELY (m_lookup_table.cursorDown ())) { + updateLookupTableFast (m_lookup_table, TRUE); + updatePreeditText (); + updateAuxiliaryText (); + } +} + +gboolean +PunctEditor::moveCursorLeft (void) +{ + if (G_UNLIKELY (m_cursor == 0)) + return FALSE; + m_cursor --; + update(); + return TRUE; +} + +gboolean +PunctEditor::moveCursorRight (void) +{ + if (G_UNLIKELY (m_cursor == m_text.length ())) + return FALSE; + m_cursor ++; + update(); + return TRUE; +} + +gboolean +PunctEditor::moveCursorToBegin (void) +{ + if (G_UNLIKELY (m_cursor == 0)) + return FALSE; + m_cursor = 0; + update (); + return TRUE; +} + +gboolean +PunctEditor::moveCursorToEnd (void) +{ + if (G_UNLIKELY (m_cursor == m_text.length ())) + return FALSE; + m_cursor = m_text.length (); + update(); + return TRUE; +} + +gboolean +PunctEditor::removeCharBefore (void) +{ + if (G_UNLIKELY (m_cursor == 0)) + return FALSE; + + m_cursor --; + m_text.erase (m_cursor, 1); + if (m_text.empty()) + m_punct_mode = FALSE; + + update(); + + return TRUE; +} + +gboolean +PunctEditor::removeCharAfter (void) +{ + if (G_UNLIKELY (m_cursor == m_text.length ())) + return FALSE; + + m_text.erase (m_cursor, 1); + if (m_text.empty()) + m_punct_mode = FALSE; + + update(); + + return TRUE; +} + +void +PunctEditor::reset (void) +{ + m_punct_mode = FALSE; + Editor::reset (); +} + +void +PunctEditor::candidateClicked (guint index, guint button, guint state) +{ + selectCandidateInPage(index); +} + +inline void +PunctEditor::commit (const gchar *str) +{ + StaticText text(str); + commitText (text); +} + +void +PunctEditor::commit (void) +{ + commit ((const gchar *)m_text); + reset(); +} + +inline gboolean +PunctEditor::selectCandidate (guint i) +{ + m_buffer.clear (); + m_buffer << m_punct_candidates[i]; + reset(); + commit ((const gchar *) m_buffer); + return FALSE; +} + +inline gboolean +PunctEditor::selectCandidateInPage (guint i) +{ + guint page_size = m_lookup_table.pageSize (); + guint cursor_pos = m_lookup_table.cursorPos (); + + if (G_UNLIKELY (i >= page_size)) + return FALSE; + i += (cursor_pos / page_size) * page_size; + + return selectCandidate (i); +} + +void +PunctEditor::update (void) +{ + updateLookupTable (); + updatePreeditText (); + updateAuxiliaryText (); +} + +void +PunctEditor::updateLookupTable (void) +{ + m_lookup_table.clear (); + m_lookup_table.setPageSize (Config::pageSize ()); + m_lookup_table.setOrientation (Config::orientation ()); + + fillLookupTableByPage (); + if (m_lookup_table.size ()) { + Editor::updateLookupTable (m_lookup_table, TRUE); + } + else { + hideLookupTable (); + } +} + +static int +punct_cmp (const void *p1, const void *p2) +{ + const gchar *s1 = (gchar *) p1; + const gchar *s2 = **(gchar ***) p2; + return std::strcmp (s1, s2); +} + +void +PunctEditor::getPunctCandidates (void) +{ + const gchar *** brs; + const gchar ** res; + m_punct_candidates.clear(); + + if (m_text.empty()) + return; + + brs = (const gchar ***) std::bsearch (m_text.c_str() + 1, punct_table, + G_N_ELEMENTS (punct_table), + sizeof(punct_table[0]), + punct_cmp); + if (brs == NULL) + return; + + for (res = (*brs) + 1; *res != NULL; ++res) { + m_punct_candidates.push_back(*res); + } +} + +gboolean +PunctEditor::fillLookupTableByPage (void) +{ + guint filled_nr = m_lookup_table.size (); + guint page_size = m_lookup_table.pageSize (); + guint candidates_count; + + getPunctCandidates(); + candidates_count = m_punct_candidates.size(); + + guint need_nr = MIN (page_size, candidates_count - filled_nr); + g_assert (need_nr >= 0); + if (need_nr == 0) { + return FALSE; + } + + for (guint i = filled_nr; i < filled_nr + need_nr; i++) { + Text text (m_punct_candidates[i]); + text.appendAttribute (IBUS_ATTR_TYPE_FOREGROUND, 0x004466, 0, -1); + m_lookup_table.appendCandidate (text); + } + + return TRUE; +} + +void +PunctEditor::updateAuxiliaryText (void) +{ + if (G_UNLIKELY (m_punct_mode == FALSE)) { + hideAuxiliaryText (); + return; + } + + m_buffer.clear(); + for (String::iterator i = m_text.begin(); i != m_text.end(); ++i) { + if (i - m_text.begin() == (gint) m_cursor) + m_buffer << '|'; + m_buffer << *i; + } + if (m_text.end() - m_text.begin() == (gint) m_cursor) + m_buffer << '|'; + + StaticText aux_text (m_buffer); + Editor::updateAuxiliaryText (aux_text, TRUE); +} + +void +PunctEditor::updatePreeditText (void) +{ + if (G_UNLIKELY (m_punct_mode == FALSE )) { + hidePreeditText (); + return; + } + + guint edit_begin = 0; + guint edit_end = 0; + + m_buffer.clear (); + if (m_lookup_table.size() != 0) { + guint cursor = m_lookup_table.cursorPos (); + m_buffer << m_punct_candidates[cursor]; + } + + StaticText preedit_text (m_buffer); + /* underline */ + preedit_text.appendAttribute (IBUS_ATTR_TYPE_UNDERLINE, IBUS_ATTR_UNDERLINE_SINGLE, 0, -1); + + /* candidate */ + if (edit_begin < edit_end) { + preedit_text.appendAttribute (IBUS_ATTR_TYPE_FOREGROUND, 0x00000000, + edit_begin, edit_end); + preedit_text.appendAttribute (IBUS_ATTR_TYPE_BACKGROUND, 0x00c8c8f0, + edit_begin, edit_end); + } + Editor::updatePreeditText (preedit_text, edit_begin, TRUE); +} + +}; + + |
