edit.c

winNT技术操作系统,国外开放的原代码和LIUX一样

    ret = SendMessage(hwEdit, EM_POSFROMCHAR, 2, 0);
    ok(-1 == ret, "expected -1 got %d\n", ret);
    DestroyWindow(hwEdit);

    hwEdit = create_editcontrol(ES_MULTILINE | ES_CENTER | ES_AUTOHSCROLL | ES_AUTOVSCROLL, 0);
    SendMessage(hwEdit, WM_SETTEXT, 0, (LPARAM) "aa");
    lo = LOWORD(SendMessage(hwEdit, EM_POSFROMCHAR, 0, 0));
    hi = LOWORD(SendMessage(hwEdit, EM_POSFROMCHAR, 1, 0));
    mid = lo + (hi - lo) / 2 +1;

    for (i = lo; i < mid; i++) {
       ret = LOWORD(SendMessage(hwEdit, EM_CHARFROMPOS, 0, (LPARAM) i));
       ok(0 == ret, "expected 0 got %d\n", ret);
    }
    for (i = mid; i <= hi; i++) {
       ret = LOWORD(SendMessage(hwEdit, EM_CHARFROMPOS, 0, (LPARAM) i));
       ok(1 == ret, "expected 1 got %d\n", ret);
    }
    ret = SendMessage(hwEdit, EM_POSFROMCHAR, 2, 0);
    ok(-1 == ret, "expected -1 got %d\n", ret);
    DestroyWindow(hwEdit);
}

/* Test if creating edit control without ES_AUTOHSCROLL and ES_AUTOVSCROLL
 * truncates text that doesn't fit.
 */
static void test_edit_control_5(void)
{
    static const char *str = "test\r\ntest";
    HWND hWnd;
    int len;

    hWnd = CreateWindowEx(0,
              "EDIT",
              str,
              0,
              10, 10, 1, 1,
              NULL, NULL, NULL, NULL);
    assert(hWnd);

    len = SendMessageA(hWnd, WM_GETTEXTLENGTH, 0, 0);
    ok(lstrlenA(str) == len, "text shouldn't have been truncated\n");
    DestroyWindow(hWnd);

    hWnd = CreateWindowEx(0,
              "EDIT",
              str,
              ES_MULTILINE,
              10, 10, 1, 1,
              NULL, NULL, NULL, NULL);
    assert(hWnd);

    len = SendMessageA(hWnd, WM_GETTEXTLENGTH, 0, 0);
    ok(lstrlenA(str) == len, "text shouldn't have been truncated\n");
    DestroyWindow(hWnd);
}

static void test_margins(void)
{
    HWND hwEdit;
    RECT old_rect, new_rect;
    INT old_left_margin, old_right_margin;
    DWORD old_margins, new_margins;

    hwEdit = create_editcontrol(WS_BORDER | ES_AUTOHSCROLL | ES_AUTOVSCROLL, 0);
    
    old_margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0);
    old_left_margin = LOWORD(old_margins);
    old_right_margin = HIWORD(old_margins);
    
    /* Check if setting the margins works */
    
    SendMessage(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN, MAKELONG(10, 0));
    new_margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0);
    ok(LOWORD(new_margins) == 10, "Wrong left margin: %d\n", LOWORD(new_margins));
    ok(HIWORD(new_margins) == old_right_margin, "Wrong right margin: %d\n", HIWORD(new_margins));
    
    SendMessage(hwEdit, EM_SETMARGINS, EC_RIGHTMARGIN, MAKELONG(0, 10));
    new_margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0);
    ok(LOWORD(new_margins) == 10, "Wrong left margin: %d\n", LOWORD(new_margins));
    ok(HIWORD(new_margins) == 10, "Wrong right margin: %d\n", HIWORD(new_margins));
    
    
    /* The size of the rectangle must decrease if we increase the margin */
    
    SendMessage(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(5, 5));
    SendMessage(hwEdit, EM_GETRECT, 0, (LPARAM)&old_rect);
    SendMessage(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(15, 20));
    SendMessage(hwEdit, EM_GETRECT, 0, (LPARAM)&new_rect);
    ok(new_rect.left == old_rect.left + 10, "The left border of the rectangle is wrong\n");
    ok(new_rect.right == old_rect.right - 15, "The right border of the rectangle is wrong\n");
    ok(new_rect.top == old_rect.top, "The top border of the rectangle must not change\n");
    ok(new_rect.bottom == old_rect.bottom, "The bottom border of the rectangle must not change\n");
    
    
    /* If we set the margin to same value as the current margin,
       the rectangle must not change */
    
    SendMessage(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(10, 10));
    old_rect.left = 1;
    old_rect.right = 99;
    old_rect.top = 1;
    old_rect.bottom = 99;
    SendMessage(hwEdit, EM_SETRECT, 0, (LPARAM)&old_rect);    
    SendMessage(hwEdit, EM_GETRECT, 0, (LPARAM)&old_rect);
    SendMessage(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(10, 10));
    SendMessage(hwEdit, EM_GETRECT, 0, (LPARAM)&new_rect);
    ok(new_rect.left == old_rect.left, "The left border of the rectangle has changed\n");
    ok(new_rect.right == old_rect.right, "The right border of the rectangle has changed\n");
    ok(new_rect.top == old_rect.top, "The top border of the rectangle has changed\n");
    ok(new_rect.bottom == old_rect.bottom, "The bottom border of the rectangle has changed\n");
    
    DestroyWindow (hwEdit);
}

#define edit_pos_ok(exp, got, txt) \
    ok(exp == got, "wrong " #txt " expected %d got %ld\n", exp, got);

#define check_pos(hwEdit, set_height, test_top, test_height, test_left) \
do { \
    RECT format_rect; \
    int left_margin; \
    set_client_height(hwEdit, set_height); \
    SendMessage(hwEdit, EM_GETRECT, 0, (LPARAM) &format_rect); \
    left_margin = LOWORD(SendMessage(hwEdit, EM_GETMARGINS, 0, 0)); \
    edit_pos_ok(test_top, format_rect.top, vertical position); \
    edit_pos_ok((int)test_height, format_rect.bottom - format_rect.top, height); \
    edit_pos_ok(test_left, format_rect.left - left_margin, left); \
} while(0)

void test_text_position_style(DWORD style)
{
    HWND hwEdit;
    HFONT font, oldFont;
    HDC dc;
    TEXTMETRIC metrics;
    INT b, bm, b2, b3;
    BOOL single_line = !(style & ES_MULTILINE);

    b = GetSystemMetrics(SM_CYBORDER) + 1;
    b2 = 2 * b;
    b3 = 3 * b;
    bm = b2 - 1;
    
    /* Get a stock font for which we can determine the metrics */
    assert(font = GetStockObject(SYSTEM_FONT));
    assert(dc = GetDC(NULL));
    oldFont = SelectObject(dc, font);
    assert(GetTextMetrics(dc, &metrics));    
    SelectObject(dc, oldFont);
    ReleaseDC(NULL, dc);
    
    /* Windows' edit control has some bugs in multi-line mode:
     * - Sometimes the format rectangle doesn't get updated
     *   (see workaround in set_client_height())
     * - If the height of the control is smaller than the height of a text
     *   line, the format rectangle is still as high as a text line
     *   (higher than the client rectangle) and the caret is not shown
     */
    
    /* Edit controls that are in a parent window */
       
    hwEdit = create_child_editcontrol(style | WS_VISIBLE, 0);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 0);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight +  2, 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight + 10, 0, metrics.tmHeight    , 0);
    destroy_child_editcontrol(hwEdit);

    hwEdit = create_child_editcontrol(style | WS_BORDER | WS_VISIBLE, 0);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, b);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + bm, 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + b2, b, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + b3, b, metrics.tmHeight    , b);
    destroy_child_editcontrol(hwEdit);

    hwEdit = create_child_editcontrol(style | WS_VISIBLE, WS_EX_CLIENTEDGE);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 1);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  2, 1, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight + 10, 1, metrics.tmHeight    , 1);
    destroy_child_editcontrol(hwEdit);

    hwEdit = create_child_editcontrol(style | WS_BORDER | WS_VISIBLE, WS_EX_CLIENTEDGE);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 1);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  2, 1, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight + 10, 1, metrics.tmHeight    , 1);
    destroy_child_editcontrol(hwEdit);


    /* Edit controls that are popup windows */
    
    hwEdit = create_editcontrol(style | WS_POPUP, 0);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 0);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight +  2, 0, metrics.tmHeight    , 0);
    check_pos(hwEdit, metrics.tmHeight + 10, 0, metrics.tmHeight    , 0);
    DestroyWindow(hwEdit);

    hwEdit = create_editcontrol(style | WS_POPUP | WS_BORDER, 0);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, b);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + bm, 0, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + b2, b, metrics.tmHeight    , b);
    check_pos(hwEdit, metrics.tmHeight + b3, b, metrics.tmHeight    , b);
    DestroyWindow(hwEdit);

    hwEdit = create_editcontrol(style | WS_POPUP, WS_EX_CLIENTEDGE);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 1);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  2, 1, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight + 10, 1, metrics.tmHeight    , 1);
    DestroyWindow(hwEdit);

    hwEdit = create_editcontrol(style | WS_POPUP | WS_BORDER, WS_EX_CLIENTEDGE);
    SendMessage(hwEdit, WM_SETFONT, (WPARAM) font, (LPARAM) FALSE);
    if (single_line)
    check_pos(hwEdit, metrics.tmHeight -  1, 0, metrics.tmHeight - 1, 1);
    check_pos(hwEdit, metrics.tmHeight     , 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  1, 0, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight +  2, 1, metrics.tmHeight    , 1);
    check_pos(hwEdit, metrics.tmHeight + 10, 1, metrics.tmHeight    , 1);
    DestroyWindow(hwEdit);
}

void test_text_position(void)
{
    trace("EDIT: Text position (Single line)\n");
    test_text_position_style(ES_AUTOHSCROLL | ES_AUTOVSCROLL);
    trace("EDIT: Text position (Multi line)\n");
    test_text_position_style(ES_MULTILINE | ES_AUTOHSCROLL | ES_AUTOVSCROLL);
}

static BOOL RegisterWindowClasses (void)
{
    WNDCLASSA test2;
    WNDCLASSA test3;
    WNDCLASSA text_position;
    
    test2.style = 0;
    test2.lpfnWndProc = ET2_WndProc;
    test2.cbClsExtra = 0;
    test2.cbWndExtra = 0;
    test2.hInstance = hinst;
    test2.hIcon = NULL;
    test2.hCursor = LoadCursorA (NULL, IDC_ARROW);
    test2.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
    test2.lpszMenuName = NULL;
    test2.lpszClassName = szEditTest2Class;
    if (!RegisterClassA(&test2)) return FALSE;

    test3.style = 0;
    test3.lpfnWndProc = edit3_wnd_procA;
    test3.cbClsExtra = 0;
    test3.cbWndExtra = 0;
    test3.hInstance = hinst;
    test3.hIcon = 0;
    test3.hCursor = LoadCursorA(0, (LPSTR)IDC_ARROW);
    test3.hbrBackground = GetStockObject(WHITE_BRUSH);
    test3.lpszMenuName = NULL;
    test3.lpszClassName = szEditTest3Class;
    if (!RegisterClassA(&test3)) return FALSE;

    text_position.style = CS_HREDRAW | CS_VREDRAW;
    text_position.cbClsExtra = 0;
    text_position.cbWndExtra = 0;
    text_position.hInstance = hinst;
    text_position.hIcon = NULL;
    text_position.hCursor = LoadCursorA(NULL, MAKEINTRESOURCEA(IDC_ARROW));
    text_position.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
    text_position.lpszMenuName = NULL;
    text_position.lpszClassName = szEditTextPositionClass;
    text_position.lpfnWndProc = DefWindowProc;
    if (!RegisterClassA(&text_position)) return FALSE;

    return TRUE;
}

static void UnregisterWindowClasses (void)
{
    UnregisterClassA(szEditTest2Class, hinst);
    UnregisterClassA(szEditTest3Class, hinst);
    UnregisterClassA(szEditTextPositionClass, hinst);
}

START_TEST(edit)
{
    hinst = GetModuleHandleA(NULL);
    assert(RegisterWindowClasses());

    test_edit_control_1();
    test_edit_control_2();
    test_edit_control_3();
    test_edit_control_4();
    test_edit_control_5();
    test_margins();
    test_text_position();
    
    UnregisterWindowClasses();
}