+bool wxTextCtrl::PositionToXY(long pos, long *x, long *y ) const
+{
+ if ( m_windowStyle & wxTE_MULTILINE )
+ {
+ wxString text = GetValue();
+
+ // cast to prevent warning. But pos really should've been unsigned.
+ if( (unsigned long)pos > text.Len() )
+ return FALSE;
+
+ *x=0; // First Col
+ *y=0; // First Line
+
+ const wxChar* stop = text.c_str() + pos;
+ for ( const wxChar *p = text.c_str(); p < stop; p++ )
+ {
+ if (*p == wxT('\n'))
+ {
+ (*y)++;
+ *x=0;
+ }
+ else
+ (*x)++;
+ }
+ }
+ else // single line control
+ {
+ if ( pos <= GTK_ENTRY(m_text)->text_length )
+ {
+ *y = 0;
+ *x = pos;
+ }
+ else
+ {
+ // index out of bounds
+ return FALSE;
+ }
+ }
+
+ return TRUE;
+}
+
+long wxTextCtrl::XYToPosition(long x, long y ) const
+{
+ if (!(m_windowStyle & wxTE_MULTILINE)) return 0;
+
+ long pos=0;
+ for( int i=0; i<y; i++ ) pos += GetLineLength(i) + 1; // one for '\n'
+
+ pos += x;
+ return pos;
+}
+
+int wxTextCtrl::GetLineLength(long lineNo) const
+{
+ wxString str = GetLineText (lineNo);
+ return (int) str.Length();
+}
+
+int wxTextCtrl::GetNumberOfLines() const
+{
+ if (m_windowStyle & wxTE_MULTILINE)
+ {
+ gint len = gtk_text_get_length( GTK_TEXT(m_text) );
+ char *text = gtk_editable_get_chars( GTK_EDITABLE(m_text), 0, len );
+
+ if (text)
+ {
+ int currentLine = 0;
+ for (int i = 0; i < len; i++ )
+ {
+ if (text[i] == '\n')
+ currentLine++;
+ }
+ g_free( text );
+
+ // currentLine is 0 based, add 1 to get number of lines
+ return currentLine + 1;
+ }
+ else
+ {
+ return 0;
+ }
+ }
+ else
+ {
+ return 1;
+ }
+}
+
+void wxTextCtrl::SetInsertionPoint( long pos )
+{
+ wxCHECK_RET( m_text != NULL, wxT("invalid text ctrl") );
+
+ if (m_windowStyle & wxTE_MULTILINE)
+ {
+ /* seems to be broken in GTK 1.0.X:
+ gtk_text_set_point( GTK_TEXT(m_text), (int)pos ); */
+
+ gtk_signal_disconnect_by_func( GTK_OBJECT(m_text),
+ GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+ /* we fake a set_point by inserting and deleting. as the user
+ isn't supposed to get to know about thos non-sense, we
+ disconnect so that no events are sent to the user program. */
+
+ gint tmp = (gint)pos;
+ gtk_editable_insert_text( GTK_EDITABLE(m_text), " ", 1, &tmp );
+ gtk_editable_delete_text( GTK_EDITABLE(m_text), tmp-1, tmp );
+
+ gtk_signal_connect( GTK_OBJECT(m_text), "changed",
+ GTK_SIGNAL_FUNC(gtk_text_changed_callback), (gpointer)this);
+
+ /* bring editable's cursor uptodate. another bug in GTK. */
+
+ GTK_EDITABLE(m_text)->current_pos = gtk_text_get_point( GTK_TEXT(m_text) );
+ }
+ else
+ {
+ gtk_entry_set_position( GTK_ENTRY(m_text), (int)pos );
+
+ /* bring editable's cursor uptodate. bug in GTK. */
+
+ GTK_EDITABLE(m_text)->current_pos = (guint32)pos;
+ }
+}
projects / wxWidgets.git / blobdiff