wxString wxSTEditorShell::GetPromptText()
{
int prompt_line = GetPromptLine();
int start_pos = PositionFromLine(prompt_line);
int end_pos = GetLength();
wxString text(GetTextRange(start_pos, end_pos));
return text;
}
void wxSTEditorShell::SetPromptText(const wxString& text)
{
BeginWriteable();
int length = GetLength();
int prompt_line = GetPromptLine();
int start_pos = PositionFromLine(prompt_line);
SetTargetStart(start_pos);
SetTargetEnd(length);
ReplaceTarget(text);
GotoPos(GetLength());
EndWriteable();
}
bool wxSTEditorShell::CheckReadOnly(bool set)
{
bool make_ro = !CaretOnPromptLine(STE_CARET_MOVE_NONE);
if (!make_ro)
{
// also check selection and make ro so they can't cut text not on last line
int prompt_line = GetPromptLine();
make_ro |= ((LineFromPosition(GetSelectionStart()) < prompt_line) ||
(LineFromPosition(GetSelectionEnd()) < prompt_line));
}
if (set && (make_ro != GetReadOnly()))
SetReadOnly(make_ro);
return make_ro;
}
bool wxSTEditorShell::CaretOnPromptLine(STE_CaretPos_Type option)
{
int prompt_line = GetPromptLine();
bool on_last = GetCurrentLine() >= prompt_line;
//wxPrintf(wxT("Caret on last line total %d current %d onlast %d\n"), total_lines, GetCurrentLine(), (int)on_last);
if (!on_last && (option != STE_CARET_MOVE_NONE))
{
if ((option & STE_CARET_MOVE_LASTLINE) != 0)
GotoLine(prompt_line);
else if ((option & STE_CARET_MOVE_ENDTEXT) != 0)
GotoPos(GetLength());
}
return GetCurrentLine() >= prompt_line;
}
wxString wxSTEditorShell::GetPromptText()
{
int prompt_line = GetPromptLine();
wxString text = GetTextRange(PositionFromLine(prompt_line), GetLength());
return text;
}
void wxSTEditorShell::OnKeyDown(wxKeyEvent &event)
{
event.Skip(false);
CheckReadOnly(true);
switch (event.GetKeyCode())
{
case WXK_UP : case WXK_NUMPAD_UP :
{
// you can scroll up through multiline entry
int current_line = GetCurrentLine();
int prompt_line = GetPromptLine();
if ((current_line < prompt_line) || (current_line > prompt_line))
break;
// up/down arrows go through the history buffer
wxString promptText = GetPromptText();
SetPromptText(GetNextHistoryLine(event.GetKeyCode() == WXK_DOWN, promptText));
return;
}
case WXK_DOWN : case WXK_NUMPAD_DOWN :
{
// you can scroll down through multiline entry
int total_lines = GetLineCount();
total_lines = wxMax(0, total_lines - 1);
int current_line = GetCurrentLine();
if (current_line < total_lines)
break;
// up/down arrows go through the history buffer
if ((int)GetHistoryIndex() < (int)GetHistoryCount()-1)
{
wxString promptText = GetPromptText();
SetPromptText(GetNextHistoryLine(event.GetKeyCode() == WXK_DOWN, promptText));
}
return;
}
case WXK_LEFT : case WXK_NUMPAD_LEFT :
{
int current_line = GetCurrentLine();
int prompt_line = GetPromptLine();
if (current_line >= prompt_line)
{
int caret_pos = 0;
GetCurLine(&caret_pos);
if (caret_pos < 1)
return;
}
break;
}
case WXK_PRIOR : case WXK_NUMPAD_PRIOR : //case WXK_NUMPAD_PAGEUP :
case WXK_NEXT : case WXK_NUMPAD_NEXT : //case WXK_NUMPAD_PAGEDOWN :
case WXK_END : case WXK_NUMPAD_END :
case WXK_HOME : case WXK_NUMPAD_HOME :
case WXK_RIGHT : case WXK_NUMPAD_RIGHT :
case WXK_SHIFT :
case WXK_CONTROL :
case WXK_ALT :
{
// default processing for these keys
event.Skip();
return;
}
case WXK_RETURN : case WXK_NUMPAD_ENTER :
{
// put cursor at end if not already on the last line
if (!CaretOnPromptLine(STE_CARET_MOVE_NONE))
{
GotoPos(GetLength());
return;
}
int current_line = GetCurrentLine();
int prompt_line = GetPromptLine();
// allow multiline entry for shift+enter
if ((current_line >= prompt_line) && event.ShiftDown())
{
event.Skip();
return;
}
wxString promptText = GetPromptText();
// goto the end of the line and store the line for the history
LineEnd();
if (!promptText.IsEmpty())
AddHistoryLine(promptText, true);
// just send the event, the receiver can do what they like
SendEvent(wxEVT_STESHELL_ENTER, 0, GetState(), promptText);
return;
}
case WXK_BACK :
{
// go to the end of the last line if not on last line
if (!CaretOnPromptLine(STE_CARET_MOVE_NONE))
{
GotoPos(GetLength());
return;
}
// don't let them backspace into previous line
int caret_pos = 0;
GetCurLine(&caret_pos);
if (caret_pos < 1)
return;
break;
}
default : // move cursor to end if not already there
{
CaretOnPromptLine(STE_CARET_MOVE_ENDTEXT);
break;
}
}
event.Skip();
}
