// license:BSD-3-Clause // copyright-holders:Aaron Giles, Vas Crabb //============================================================ // // editwininfo.c - Win32 debug window handling // //============================================================ #include "emu.h" #include "editwininfo.h" #include "debugviewinfo.h" #include "uimetrics.h" #include "strconv.h" #include "winutil.h" namespace { constexpr DWORD EDIT_BOX_STYLE = WS_CHILD | WS_VISIBLE | ES_AUTOHSCROLL; constexpr DWORD EDIT_BOX_STYLE_EX = 0; constexpr int MAX_EDIT_STRING = 256; constexpr int HISTORY_LENGTH = 20; } // anonymous namespace editwin_info::editwin_info(debugger_windows_interface &debugger, bool is_main_console, LPCSTR title, WNDPROC handler) : debugwin_info(debugger, is_main_console, title, handler), m_editwnd(nullptr), m_edit_defstr(), m_original_editproc(nullptr), m_history(), m_last_history(0) { if (window() == nullptr) return; // create an edit box and override its key handling m_editwnd = CreateWindowEx(EDIT_BOX_STYLE_EX, TEXT("EDIT"), nullptr, EDIT_BOX_STYLE, 0, 0, 100, 100, window(), nullptr, GetModuleHandleUni(), nullptr); m_original_editproc = WNDPROC(uintptr_t(GetWindowLongPtr(m_editwnd, GWLP_WNDPROC))); SetWindowLongPtr(m_editwnd, GWLP_USERDATA, LONG_PTR(this)); SetWindowLongPtr(m_editwnd, GWLP_WNDPROC, LONG_PTR(&editwin_info::static_edit_proc)); SendMessage(m_editwnd, WM_SETFONT, WPARAM(metrics().debug_font()), LPARAM(FALSE)); SendMessage(m_editwnd, EM_LIMITTEXT, WPARAM(MAX_EDIT_STRING), LPARAM(0)); set_editwnd_text(""); } editwin_info::~editwin_info() { } bool editwin_info::restore_field(HWND wnd) { if (wnd == m_editwnd) { set_editwnd_text(m_edit_defstr.c_str()); editwnd_select_all(); return true; } else { return false; } } bool editwin_info::set_default_focus() { SetFocus(m_editwnd); return true; } void editwin_info::set_editwnd_bounds(RECT const &bounds) { smart_set_window_bounds(m_editwnd, window(), bounds); } void editwin_info::set_editwnd_text(char const *text) { auto tc_buffer = osd::text::to_tstring(text); SendMessage(m_editwnd, WM_SETTEXT, WPARAM(0), LPARAM(tc_buffer.c_str())); } void editwin_info::editwnd_select_all() { SendMessage(m_editwnd, EM_SETSEL, WPARAM(0), LPARAM(-1)); } void editwin_info::draw_contents(HDC dc) { debugwin_info::draw_contents(dc); if (m_editwnd) draw_border(dc, m_editwnd); } LRESULT editwin_info::edit_proc(UINT message, WPARAM wparam, LPARAM lparam) { // handle a few messages switch (message) { // key down: handle navigation in the attached view case WM_SYSKEYDOWN: if (wparam != VK_F10) return CallWindowProc(m_original_editproc, m_editwnd, message, wparam, lparam); [[fallthrough]]; case WM_KEYDOWN: switch (wparam) { case VK_UP: if (!m_history.empty()) { m_last_history++; if (m_last_history >= m_history.size()) m_last_history = 0; auto const &entry(m_history[m_last_history]); SendMessage(m_editwnd, WM_SETTEXT, WPARAM(0), LPARAM(entry.c_str())); SendMessage(m_editwnd, EM_SETSEL, WPARAM(entry.length()), LPARAM(entry.length())); } break; case VK_DOWN: if (!m_history.empty()) { if (m_last_history > 0) m_last_history--; else m_last_history = m_history.size() - 1; auto const &entry(m_history[m_last_history]); SendMessage(m_editwnd, WM_SETTEXT, WPARAM(0), LPARAM(entry.c_str())); SendMessage(m_editwnd, EM_SETSEL, WPARAM(entry.length()), LPARAM(entry.length())); } break; case VK_PRIOR: if (m_views[0] != nullptr) m_views[0]->send_pageup(); break; case VK_NEXT: if (m_views[0] != nullptr) m_views[0]->send_pagedown(); break; case VK_TAB: if (GetAsyncKeyState(VK_SHIFT) & 0x8000) prev_view(nullptr); else next_view(nullptr); set_ignore_char_lparam(lparam); break; default: if (handle_key(wparam, lparam)) set_ignore_char_lparam(lparam); else return CallWindowProc(m_original_editproc, m_editwnd, message, wparam, lparam); break; } break; // char: handle the return key case WM_CHAR: // ignore chars associated with keys we've handled if (check_ignore_char_lparam(lparam)) { if (waiting_for_debugger() || !seq_pressed()) { TCHAR buffer[MAX_EDIT_STRING]; switch (wparam) { case 13: // carriage return { // fetch the text SendMessage(m_editwnd, WM_GETTEXT, WPARAM(std::size(buffer)), LPARAM(buffer)); // add to the history if it's not a repeat of the last one if (buffer[0] && (m_history.empty() || _tcscmp(buffer, m_history[0].c_str()))) { while (m_history.size() >= HISTORY_LENGTH) m_history.pop_back(); m_history.emplace_front(buffer); } m_last_history = m_history.size() - 1; // process { auto utf8_buffer = osd::text::from_tstring(buffer); process_string(utf8_buffer); } } break; case 27: // escape { // fetch the text SendMessage(m_editwnd, WM_GETTEXT, WPARAM(sizeof(buffer)), LPARAM(buffer)); // if it's not empty, clear the text if (_tcslen(buffer) > 0) { set_ignore_char_lparam(lparam); set_editwnd_text(m_edit_defstr.c_str()); editwnd_select_all(); } } break; default: return CallWindowProc(m_original_editproc, m_editwnd, message, wparam, lparam); } } } break; // everything else: defaults default: return CallWindowProc(m_original_editproc, m_editwnd, message, wparam, lparam); } return 0; } LRESULT CALLBACK editwin_info::static_edit_proc(HWND wnd, UINT message, WPARAM wparam, LPARAM lparam) { auto *const info = (editwin_info *)uintptr_t(GetWindowLongPtr(wnd, GWLP_USERDATA)); assert(info->m_editwnd == wnd); return info->edit_proc(message, wparam, lparam); }