Huw Davies : user32: Only adjust the margins if the edit control is above a certain size.
Module: wine Branch: refs/heads/master Commit: c4b44245fbb188218fedba2ad3e33ee2f4086338 URL: http://source.winehq.org/git/?p=wine.git;a=commit;h=c4b44245fbb188218fedba2a... Author: Huw Davies <huw(a)codeweavers.com> Date: Wed Mar 22 12:16:44 2006 +0000 user32: Only adjust the margins if the edit control is above a certain size. --- dlls/user/edit.c | 35 ++++++++++++++-- dlls/user/tests/edit.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 130 insertions(+), 8 deletions(-) diff --git a/dlls/user/edit.c b/dlls/user/edit.c index 98cf736..ed013af 100644 --- a/dlls/user/edit.c +++ b/dlls/user/edit.c @@ -246,7 +246,7 @@ static void EDIT_EM_ScrollCaret(EDITSTAT static void EDIT_EM_SetHandle(EDITSTATE *es, HLOCAL hloc); static void EDIT_EM_SetHandle16(EDITSTATE *es, HLOCAL16 hloc); static void EDIT_EM_SetLimitText(EDITSTATE *es, INT limit); -static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, INT left, INT right, BOOL repaint); +static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, WORD left, WORD right, BOOL repaint); static void EDIT_EM_SetPasswordChar(EDITSTATE *es, WCHAR c); static void EDIT_EM_SetSel(EDITSTATE *es, UINT start, UINT end, BOOL after_wrap); static BOOL EDIT_EM_SetTabStops(EDITSTATE *es, INT count, LPINT tabs); @@ -747,7 +747,7 @@ static LRESULT WINAPI EditWndProc_common /* The following EM_xxx are new to win95 and don't exist for 16 bit */ case EM_SETMARGINS: - EDIT_EM_SetMargins(es, (INT)wParam, (short)LOWORD(lParam), (short)HIWORD(lParam), TRUE); + EDIT_EM_SetMargins(es, (INT)wParam, LOWORD(lParam), HIWORD(lParam), TRUE); break; case EM_GETMARGINS: @@ -2326,7 +2326,7 @@ static void EDIT_SetCaretPos(EDITSTATE * static void EDIT_AdjustFormatRect(EDITSTATE *es) { RECT ClientRect; - + es->format_rect.right = max(es->format_rect.right, es->format_rect.left + es->char_width); if (es->style & ES_MULTILINE) { @@ -3660,9 +3660,24 @@ static void EDIT_EM_SetLimitText(EDITSTA * of the char's width as the margin, but this is not how Windows handles this. * For all other fonts Windows sets the margins to zero. * + * FIXME - When EC_USEFONTINFO is used the margins only change if the + * edit control is equal to or larger than a certain size. + * Interestingly if one subtracts both the left and right margins from + * this size one always seems to get an even number. The extents of + * the (four character) string "'**'" match this quite closely, so + * we'll use this until we come up with a better idea. */ +static int calc_min_set_margin_size(HDC dc, INT left, INT right) +{ + WCHAR magic_string[] = {'\'','*','*','\'', 0}; + SIZE sz; + + GetTextExtentPointW(dc, magic_string, sizeof(magic_string)/sizeof(WCHAR) - 1, &sz); + return sz.cx + left + right; +} + static void EDIT_EM_SetMargins(EDITSTATE *es, INT action, - INT left, INT right, BOOL repaint) + WORD left, WORD right, BOOL repaint) { TEXTMETRICW tm; INT default_left_margin = 0; /* in pixels */ @@ -3675,9 +3690,17 @@ static void EDIT_EM_SetMargins(EDITSTATE GetTextMetricsW(dc, &tm); /* The default margins are only non zero for TrueType or Vector fonts */ if (tm.tmPitchAndFamily & ( TMPF_VECTOR | TMPF_TRUETYPE )) { + int min_size; + RECT rc; /* This must be calculated more exactly! But how? */ - default_left_margin = tm.tmAveCharWidth / 3; - default_right_margin = tm.tmAveCharWidth / 3; + default_left_margin = tm.tmAveCharWidth / 2; + default_right_margin = tm.tmAveCharWidth / 2; + min_size = calc_min_set_margin_size(dc, default_left_margin, default_right_margin); + GetClientRect(es->hwndSelf, &rc); + if(rc.right - rc.left < min_size) { + default_left_margin = es->left_margin; + default_right_margin = es->right_margin; + } } SelectObject(dc, old_font); ReleaseDC(es->hwndSelf, dc); diff --git a/dlls/user/tests/edit.c b/dlls/user/tests/edit.c index 1a830c2..e880ea2 100644 --- a/dlls/user/tests/edit.c +++ b/dlls/user/tests/edit.c @@ -760,10 +760,108 @@ static void test_margins(void) 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); } +static INT CALLBACK find_font_proc(const LOGFONT *elf, const TEXTMETRIC *ntm, DWORD type, LPARAM lParam) +{ + return 0; +} + +static void test_margins_font_change(void) +{ + HWND hwEdit; + DWORD margins, font_margins; + LOGFONT lf; + HFONT hfont, hfont2; + HDC hdc = GetDC(0); + + if(EnumFontFamiliesA(hdc, "Arial", find_font_proc, 0)) + { + trace("Arial not found - skipping font change margin tests\n"); + ReleaseDC(0, hdc); + return; + } + ReleaseDC(0, hdc); + + hwEdit = create_child_editcontrol(0, 0); + + SetWindowPos(hwEdit, NULL, 10, 10, 1000, 100, SWP_NOZORDER | SWP_NOACTIVATE); + + memset(&lf, 0, sizeof(lf)); + strcpy(lf.lfFaceName, "Arial"); + lf.lfHeight = 16; + lf.lfCharSet = DEFAULT_CHARSET; + hfont = CreateFontIndirectA(&lf); + lf.lfHeight = 30; + hfont2 = CreateFontIndirectA(&lf); + + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + font_margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(font_margins) != 0, "got %d\n", LOWORD(font_margins)); + ok(HIWORD(font_margins) != 0, "got %d\n", HIWORD(font_margins)); + + /* With 'small' edit controls, test that the margin doesn't get set */ + SetWindowPos(hwEdit, NULL, 10, 10, 16, 100, SWP_NOZORDER | SWP_NOACTIVATE); + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(0,0)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == 0, "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == 0, "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(1,0)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == 1, "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == 0, "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(1,1)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == 1, "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == 1, "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(EC_USEFONTINFO,EC_USEFONTINFO)); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == 1, "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == 1, "got %d\n", HIWORD(margins)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont2, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == 1, "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == 1, "got %d\n", HIWORD(margins)); + + /* Above a certain size threshold then the margin is updated */ + SetWindowPos(hwEdit, NULL, 10, 10, 1000, 100, SWP_NOZORDER | SWP_NOACTIVATE); + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(1,0)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == LOWORD(font_margins), "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == HIWORD(font_margins), "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(1,1)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == LOWORD(font_margins), "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == HIWORD(font_margins), "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, EM_SETMARGINS, EC_LEFTMARGIN | EC_RIGHTMARGIN, MAKELONG(EC_USEFONTINFO,EC_USEFONTINFO)); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) == LOWORD(font_margins), "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) == HIWORD(font_margins), "got %d\n", HIWORD(margins)); + SendMessageA(hwEdit, WM_SETFONT, (WPARAM)hfont2, 0); + margins = SendMessage(hwEdit, EM_GETMARGINS, 0, 0); + ok(LOWORD(margins) != LOWORD(font_margins), "got %d\n", LOWORD(margins)); + ok(HIWORD(margins) != HIWORD(font_margins), "got %d\n", HIWORD(margins)); + + SendMessageA(hwEdit, WM_SETFONT, 0, 0); + + DeleteObject(hfont2); + DeleteObject(hfont); + destroy_child_editcontrol(hwEdit); + +} + #define edit_pos_ok(exp, got, txt) \ ok(exp == got, "wrong " #txt " expected %d got %ld\n", exp, got); @@ -968,7 +1066,8 @@ START_TEST(edit) test_edit_control_4(); test_edit_control_5(); test_margins(); + test_margins_font_change(); test_text_position(); - + UnregisterWindowClasses(); }
participants (1)
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Alexandre Julliard