91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
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#ifdef _WIN32
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#include <conio.h>
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#include <windows.h>
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#include <io.h>
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#if _MSC_VER < 1900 && defined (_MSC_VER)
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#define snprintf _snprintf // Microsoft headers use underscores in some names
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#endif
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#define strcasecmp _stricmp
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#define strdup _strdup
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#define write _write
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#define STDIN_FILENO 0
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#else /* _WIN32 */
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#include <unistd.h>
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#endif /* _WIN32 */
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#include "prompt.hxx"
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#include "util.hxx"
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namespace replxx {
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Prompt::Prompt( Terminal& terminal_ )
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: _extraLines( 0 )
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, _lastLinePosition( 0 )
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, _cursorRowOffset( 0 )
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, _screenColumns( 0 )
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, _terminal( terminal_ ) {
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}
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void Prompt::write() {
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_terminal.write32( _text.get(), _text.length() );
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}
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void Prompt::update_screen_columns( void ) {
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_screenColumns = _terminal.get_screen_columns();
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}
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void Prompt::set_text( UnicodeString const& text_ ) {
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_text = text_;
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update_state();
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}
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void Prompt::update_state() {
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_cursorRowOffset -= _extraLines;
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_extraLines = 0;
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_lastLinePosition = 0;
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_screenColumns = 0;
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update_screen_columns();
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// strip control characters from the prompt -- we do allow newline
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UnicodeString::const_iterator in( _text.begin() );
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int x = 0;
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int renderedSize( 0 );
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_characterCount = virtual_render( _text.get(), _text.length(), x, _extraLines, _screenColumns, 0, _text.get(), &renderedSize );
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_lastLinePosition = _characterCount - x;
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_text.erase( renderedSize, _text.length() - renderedSize );
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_cursorRowOffset += _extraLines;
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}
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int Prompt::indentation() const {
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return _characterCount - _lastLinePosition;
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}
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// Used with DynamicPrompt (history search)
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//
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const UnicodeString forwardSearchBasePrompt("(i-search)`");
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const UnicodeString reverseSearchBasePrompt("(reverse-i-search)`");
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const UnicodeString endSearchBasePrompt("': ");
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DynamicPrompt::DynamicPrompt( Terminal& terminal_, int initialDirection )
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: Prompt( terminal_ )
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, _searchText()
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, _direction( initialDirection ) {
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updateSearchPrompt();
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}
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void DynamicPrompt::updateSearchPrompt(void) {
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update_screen_columns();
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const UnicodeString* basePrompt =
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(_direction > 0) ? &forwardSearchBasePrompt : &reverseSearchBasePrompt;
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_text.assign( *basePrompt ).append( _searchText ).append( endSearchBasePrompt );
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update_state();
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}
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}
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