mirror of https://github.com/bsnes-emu/bsnes.git
120 lines
3.7 KiB
C++
Executable File
120 lines
3.7 KiB
C++
Executable File
#if defined(Hiro_TextEdit)
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namespace hiro {
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auto pTextEdit::construct() -> void {
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hwnd = CreateWindowEx(
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WS_EX_CLIENTEDGE, L"EDIT", L"",
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WS_CHILD | WS_TABSTOP | WS_VSCROLL | ES_AUTOVSCROLL | ES_MULTILINE | ES_WANTRETURN | (!state().wordWrap ? WS_HSCROLL | ES_AUTOHSCROLL : 0),
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0, 0, 0, 0, _parentHandle(), nullptr, GetModuleHandle(0), 0
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);
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pWidget::construct();
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setBackgroundColor(state().backgroundColor);
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setEditable(state().editable);
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setText(state().text);
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setTextCursor(state().textCursor);
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}
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auto pTextEdit::destruct() -> void {
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state().text = text();
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if(backgroundBrush) { DeleteObject(backgroundBrush); backgroundBrush = 0; }
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DestroyWindow(hwnd);
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}
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auto pTextEdit::setBackgroundColor(Color color) -> void {
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if(backgroundBrush) { DeleteObject(backgroundBrush); backgroundBrush = 0; }
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backgroundBrush = CreateSolidBrush(color ? CreateRGB(color) : GetSysColor(COLOR_WINDOW));
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InvalidateRect(hwnd, 0, true);
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}
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auto pTextEdit::setEditable(bool editable) -> void {
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SendMessage(hwnd, EM_SETREADONLY, editable == false, (LPARAM)0);
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}
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auto pTextEdit::setForegroundColor(Color color) -> void {
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InvalidateRect(hwnd, 0, true);
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}
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auto pTextEdit::setText(string text) -> void {
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auto lock = acquire();
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text.replace("\r", "");
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text.replace("\n", "\r\n");
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SetWindowText(hwnd, utf16_t(text));
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}
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auto pTextEdit::setTextCursor(TextCursor cursor) -> void {
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signed end = GetWindowTextLength(hwnd);
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signed offset = max(0, min(end, cursor.offset()));
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signed length = max(0, min(end, cursor.offset() + cursor.length()));
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Edit_SetSel(hwnd, offset, length);
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Edit_ScrollCaret(hwnd);
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}
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auto pTextEdit::setWordWrap(bool wordWrap) -> void {
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//ES_AUTOHSCROLL cannot be changed after widget creation.
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//As a result, we must destroy and re-create widget to change this setting.
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reconstruct();
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}
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auto pTextEdit::text() const -> string {
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unsigned length = GetWindowTextLength(hwnd);
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wchar_t buffer[length + 1];
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GetWindowText(hwnd, buffer, length + 1);
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buffer[length] = 0;
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string text = (const char*)utf8_t(buffer);
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text.replace("\r", "");
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return text;
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}
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auto pTextEdit::textCursor() const -> TextCursor {
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return state().textCursor;
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}
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//
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auto pTextEdit::onChange() -> void {
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if(!locked()) self().doChange();
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}
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auto pTextEdit::windowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam) -> maybe<LRESULT> {
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if(msg == WM_KEYDOWN) {
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if(wparam == 'A' && GetKeyState(VK_CONTROL) < 0) {
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//Ctrl+A = select all text
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//note: this is not a standard accelerator on Windows
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Edit_SetSel(hwnd, 0, ~0);
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return true;
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} else if(wparam == 'V' && GetKeyState(VK_CONTROL) < 0) {
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//Ctrl+V = paste text
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//note: this formats Unix (LF) and OS9 (CR) line-endings to Windows (CR+LF) line-endings
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//this is necessary as the EDIT control only supports Windows line-endings
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OpenClipboard(hwnd);
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if(auto handle = GetClipboardData(CF_UNICODETEXT)) {
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if(auto text = (wchar_t*)GlobalLock(handle)) {
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string data = (const char*)utf8_t(text);
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data.replace("\r\n", "\n");
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data.replace("\r", "\n");
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data.replace("\n", "\r\n");
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GlobalUnlock(handle);
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utf16_t output(data);
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if(auto resource = GlobalAlloc(GMEM_MOVEABLE, (wcslen(output) + 1) * sizeof(wchar_t))) {
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if(auto write = (wchar_t*)GlobalLock(resource)) {
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wcscpy(write, output);
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GlobalUnlock(write);
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if(SetClipboardData(CF_UNICODETEXT, resource) == nullptr) {
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GlobalFree(resource);
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}
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}
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}
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}
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}
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CloseClipboard();
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}
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}
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return pWidget::windowProc(hwnd, msg, wparam, lparam);
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}
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}
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#endif
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