| /* File: button.c -- Button type widgets |
| * |
| * Copyright (C) 1993 Johannes Ruscheinski |
| * Copyright (C) 1993 David Metcalfe |
| * Copyright (C) 1994 Alexandre Julliard |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| * |
| * NOTES |
| * |
| * This code was audited for completeness against the documented features |
| * of Comctl32.dll version 6.0 on Oct. 3, 2004, by Dimitrie O. Paun. |
| * |
| * Unless otherwise noted, we believe this code to be complete, as per |
| * the specification mentioned above. |
| * If you discover missing features, or bugs, please note them below. |
| * |
| * TODO |
| * Styles |
| * - BS_NOTIFY: is it complete? |
| * - BS_RIGHTBUTTON: same as BS_LEFTTEXT |
| * - BS_TYPEMASK |
| * |
| * Messages |
| * - WM_CHAR: Checks a (manual or automatic) check box on '+' or '=', clears it on '-' key. |
| * - WM_SETFOCUS: For (manual or automatic) radio buttons, send the parent window BN_CLICKED |
| * - WM_NCCREATE: Turns any BS_OWNERDRAW button into a BS_PUSHBUTTON button. |
| * - WM_SYSKEYUP |
| * - BCM_GETIDEALSIZE |
| * - BCM_GETIMAGELIST |
| * - BCM_GETTEXTMARGIN |
| * - BCM_SETIMAGELIST |
| * - BCM_SETTEXTMARGIN |
| * |
| * Notifications |
| * - BCN_HOTITEMCHANGE |
| * - BN_DISABLE |
| * - BN_PUSHED/BN_HILITE |
| * + BN_KILLFOCUS: is it OK? |
| * - BN_PAINT |
| * + BN_SETFOCUS: is it OK? |
| * - BN_UNPUSHED/BN_UNHILITE |
| * - NM_CUSTOMDRAW |
| * |
| * Structures/Macros/Definitions |
| * - BUTTON_IMAGELIST |
| * - NMBCHOTITEM |
| * - Button_GetIdealSize |
| * - Button_GetImageList |
| * - Button_GetTextMargin |
| * - Button_SetImageList |
| * - Button_SetTextMargin |
| */ |
| |
| #include <stdarg.h> |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #define OEMRESOURCE |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "controls.h" |
| #include "win.h" |
| #include "user_private.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(button); |
| |
| /* GetWindowLong offsets for window extra information */ |
| #define STATE_GWL_OFFSET 0 |
| #define HFONT_GWL_OFFSET (sizeof(LONG)) |
| #define HIMAGE_GWL_OFFSET (HFONT_GWL_OFFSET+sizeof(HFONT)) |
| #define NB_EXTRA_BYTES (HIMAGE_GWL_OFFSET+sizeof(HANDLE)) |
| |
| /* Button state values */ |
| #define BUTTON_UNCHECKED 0x00 |
| #define BUTTON_CHECKED 0x01 |
| #define BUTTON_3STATE 0x02 |
| #define BUTTON_HIGHLIGHTED 0x04 |
| #define BUTTON_HASFOCUS 0x08 |
| #define BUTTON_NSTATES 0x0F |
| /* undocumented flags */ |
| #define BUTTON_BTNPRESSED 0x40 |
| #define BUTTON_UNKNOWN2 0x20 |
| #define BUTTON_UNKNOWN3 0x10 |
| |
| #define BUTTON_NOTIFY_PARENT(hWnd, code) \ |
| do { /* Notify parent which has created this button control */ \ |
| TRACE("notification " #code " sent to hwnd=%p\n", GetParent(hWnd)); \ |
| SendMessageW(GetParent(hWnd), WM_COMMAND, \ |
| MAKEWPARAM(GetWindowLongPtrW((hWnd),GWLP_ID), (code)), \ |
| (LPARAM)(hWnd)); \ |
| } while(0) |
| |
| static UINT BUTTON_CalcLabelRect( HWND hwnd, HDC hdc, RECT *rc ); |
| static void PB_Paint( HWND hwnd, HDC hDC, UINT action ); |
| static void CB_Paint( HWND hwnd, HDC hDC, UINT action ); |
| static void GB_Paint( HWND hwnd, HDC hDC, UINT action ); |
| static void UB_Paint( HWND hwnd, HDC hDC, UINT action ); |
| static void OB_Paint( HWND hwnd, HDC hDC, UINT action ); |
| static void BUTTON_CheckAutoRadioButton( HWND hwnd ); |
| |
| #define MAX_BTN_TYPE 12 |
| |
| static const WORD maxCheckState[MAX_BTN_TYPE] = |
| { |
| BUTTON_UNCHECKED, /* BS_PUSHBUTTON */ |
| BUTTON_UNCHECKED, /* BS_DEFPUSHBUTTON */ |
| BUTTON_CHECKED, /* BS_CHECKBOX */ |
| BUTTON_CHECKED, /* BS_AUTOCHECKBOX */ |
| BUTTON_CHECKED, /* BS_RADIOBUTTON */ |
| BUTTON_3STATE, /* BS_3STATE */ |
| BUTTON_3STATE, /* BS_AUTO3STATE */ |
| BUTTON_UNCHECKED, /* BS_GROUPBOX */ |
| BUTTON_UNCHECKED, /* BS_USERBUTTON */ |
| BUTTON_CHECKED, /* BS_AUTORADIOBUTTON */ |
| BUTTON_UNCHECKED, /* Not defined */ |
| BUTTON_UNCHECKED /* BS_OWNERDRAW */ |
| }; |
| |
| typedef void (*pfPaint)( HWND hwnd, HDC hdc, UINT action ); |
| |
| static const pfPaint btnPaintFunc[MAX_BTN_TYPE] = |
| { |
| PB_Paint, /* BS_PUSHBUTTON */ |
| PB_Paint, /* BS_DEFPUSHBUTTON */ |
| CB_Paint, /* BS_CHECKBOX */ |
| CB_Paint, /* BS_AUTOCHECKBOX */ |
| CB_Paint, /* BS_RADIOBUTTON */ |
| CB_Paint, /* BS_3STATE */ |
| CB_Paint, /* BS_AUTO3STATE */ |
| GB_Paint, /* BS_GROUPBOX */ |
| UB_Paint, /* BS_USERBUTTON */ |
| CB_Paint, /* BS_AUTORADIOBUTTON */ |
| NULL, /* Not defined */ |
| OB_Paint /* BS_OWNERDRAW */ |
| }; |
| |
| static HBITMAP hbitmapCheckBoxes = 0; |
| static WORD checkBoxWidth = 0, checkBoxHeight = 0; |
| |
| |
| /********************************************************************* |
| * button class descriptor |
| */ |
| static const WCHAR buttonW[] = {'B','u','t','t','o','n',0}; |
| const struct builtin_class_descr BUTTON_builtin_class = |
| { |
| buttonW, /* name */ |
| CS_DBLCLKS | CS_VREDRAW | CS_HREDRAW | CS_PARENTDC, /* style */ |
| WINPROC_BUTTON, /* proc */ |
| NB_EXTRA_BYTES, /* extra */ |
| IDC_ARROW, /* cursor */ |
| 0 /* brush */ |
| }; |
| |
| |
| static inline LONG get_button_state( HWND hwnd ) |
| { |
| return GetWindowLongW( hwnd, STATE_GWL_OFFSET ); |
| } |
| |
| static inline void set_button_state( HWND hwnd, LONG state ) |
| { |
| SetWindowLongW( hwnd, STATE_GWL_OFFSET, state ); |
| } |
| |
| static inline HFONT get_button_font( HWND hwnd ) |
| { |
| return (HFONT)GetWindowLongPtrW( hwnd, HFONT_GWL_OFFSET ); |
| } |
| |
| static inline void set_button_font( HWND hwnd, HFONT font ) |
| { |
| SetWindowLongPtrW( hwnd, HFONT_GWL_OFFSET, (LONG_PTR)font ); |
| } |
| |
| static inline UINT get_button_type( LONG window_style ) |
| { |
| return (window_style & 0x0f); |
| } |
| |
| /* paint a button of any type */ |
| static inline void paint_button( HWND hwnd, LONG style, UINT action ) |
| { |
| if (btnPaintFunc[style] && IsWindowVisible(hwnd)) |
| { |
| HDC hdc = GetDC( hwnd ); |
| btnPaintFunc[style]( hwnd, hdc, action ); |
| ReleaseDC( hwnd, hdc ); |
| } |
| } |
| |
| /* retrieve the button text; returned buffer must be freed by caller */ |
| static inline WCHAR *get_button_text( HWND hwnd ) |
| { |
| INT len = 512; |
| WCHAR *buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ); |
| if (buffer) InternalGetWindowText( hwnd, buffer, len + 1 ); |
| return buffer; |
| } |
| |
| static void setup_clipping( HWND hwnd, HDC hdc ) |
| { |
| RECT rc; |
| |
| GetClientRect( hwnd, &rc ); |
| DPtoLP( hdc, (POINT *)&rc, 2 ); |
| IntersectClipRect( hdc, rc.left, rc.top, rc.right, rc.bottom ); |
| } |
| |
| /*********************************************************************** |
| * ButtonWndProc_common |
| */ |
| LRESULT ButtonWndProc_common(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL unicode ) |
| { |
| RECT rect; |
| POINT pt; |
| LONG style = GetWindowLongW( hWnd, GWL_STYLE ); |
| UINT btn_type = get_button_type( style ); |
| LONG state; |
| HANDLE oldHbitmap; |
| |
| if (!IsWindow( hWnd )) return 0; |
| |
| pt.x = (short)LOWORD(lParam); |
| pt.y = (short)HIWORD(lParam); |
| |
| switch (uMsg) |
| { |
| case WM_GETDLGCODE: |
| switch(btn_type) |
| { |
| case BS_USERBUTTON: |
| case BS_PUSHBUTTON: return DLGC_BUTTON | DLGC_UNDEFPUSHBUTTON; |
| case BS_DEFPUSHBUTTON: return DLGC_BUTTON | DLGC_DEFPUSHBUTTON; |
| case BS_RADIOBUTTON: |
| case BS_AUTORADIOBUTTON: return DLGC_BUTTON | DLGC_RADIOBUTTON; |
| case BS_GROUPBOX: return DLGC_STATIC; |
| default: return DLGC_BUTTON; |
| } |
| |
| case WM_ENABLE: |
| paint_button( hWnd, btn_type, ODA_DRAWENTIRE ); |
| break; |
| |
| case WM_CREATE: |
| if (!hbitmapCheckBoxes) |
| { |
| BITMAP bmp; |
| hbitmapCheckBoxes = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_CHECKBOXES)); |
| GetObjectW( hbitmapCheckBoxes, sizeof(bmp), &bmp ); |
| checkBoxWidth = bmp.bmWidth / 4; |
| checkBoxHeight = bmp.bmHeight / 3; |
| } |
| if (btn_type >= MAX_BTN_TYPE) |
| return -1; /* abort */ |
| |
| /* XP turns a BS_USERBUTTON into BS_PUSHBUTTON */ |
| if (btn_type == BS_USERBUTTON ) |
| { |
| style = (style & ~0x0f) | BS_PUSHBUTTON; |
| WIN_SetStyle( hWnd, style, 0x0f & ~style ); |
| } |
| set_button_state( hWnd, BUTTON_UNCHECKED ); |
| return 0; |
| |
| case WM_ERASEBKGND: |
| if (btn_type == BS_OWNERDRAW) |
| { |
| HDC hdc = (HDC)wParam; |
| RECT rc; |
| HBRUSH hBrush; |
| HWND parent = GetParent(hWnd); |
| if (!parent) parent = hWnd; |
| hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hdc, (LPARAM)hWnd); |
| if (!hBrush) /* did the app forget to call defwindowproc ? */ |
| hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN, |
| (WPARAM)hdc, (LPARAM)hWnd); |
| GetClientRect(hWnd, &rc); |
| FillRect(hdc, &rc, hBrush); |
| } |
| return 1; |
| |
| case WM_PRINTCLIENT: |
| case WM_PAINT: |
| if (btnPaintFunc[btn_type]) |
| { |
| PAINTSTRUCT ps; |
| HDC hdc = wParam ? (HDC)wParam : BeginPaint( hWnd, &ps ); |
| int nOldMode = SetBkMode( hdc, OPAQUE ); |
| (btnPaintFunc[btn_type])( hWnd, hdc, ODA_DRAWENTIRE ); |
| SetBkMode(hdc, nOldMode); /* reset painting mode */ |
| if( !wParam ) EndPaint( hWnd, &ps ); |
| } |
| break; |
| |
| case WM_KEYDOWN: |
| if (wParam == VK_SPACE) |
| { |
| SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 ); |
| set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED ); |
| SetCapture( hWnd ); |
| } |
| break; |
| |
| case WM_LBUTTONDBLCLK: |
| if(style & BS_NOTIFY || |
| btn_type == BS_RADIOBUTTON || |
| btn_type == BS_USERBUTTON || |
| btn_type == BS_OWNERDRAW) |
| { |
| BUTTON_NOTIFY_PARENT(hWnd, BN_DOUBLECLICKED); |
| break; |
| } |
| /* fall through */ |
| case WM_LBUTTONDOWN: |
| SetCapture( hWnd ); |
| SetFocus( hWnd ); |
| set_button_state( hWnd, get_button_state( hWnd ) | BUTTON_BTNPRESSED ); |
| SendMessageW( hWnd, BM_SETSTATE, TRUE, 0 ); |
| break; |
| |
| case WM_KEYUP: |
| if (wParam != VK_SPACE) |
| break; |
| /* fall through */ |
| case WM_LBUTTONUP: |
| state = get_button_state( hWnd ); |
| if (!(state & BUTTON_BTNPRESSED)) break; |
| state &= BUTTON_NSTATES; |
| set_button_state( hWnd, state ); |
| if (!(state & BUTTON_HIGHLIGHTED)) |
| { |
| ReleaseCapture(); |
| break; |
| } |
| SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 ); |
| ReleaseCapture(); |
| GetClientRect( hWnd, &rect ); |
| if (uMsg == WM_KEYUP || PtInRect( &rect, pt )) |
| { |
| state = get_button_state( hWnd ); |
| switch(btn_type) |
| { |
| case BS_AUTOCHECKBOX: |
| SendMessageW( hWnd, BM_SETCHECK, !(state & BUTTON_CHECKED), 0 ); |
| break; |
| case BS_AUTORADIOBUTTON: |
| SendMessageW( hWnd, BM_SETCHECK, TRUE, 0 ); |
| break; |
| case BS_AUTO3STATE: |
| SendMessageW( hWnd, BM_SETCHECK, |
| (state & BUTTON_3STATE) ? 0 : ((state & 3) + 1), 0 ); |
| break; |
| } |
| BUTTON_NOTIFY_PARENT(hWnd, BN_CLICKED); |
| } |
| break; |
| |
| case WM_CAPTURECHANGED: |
| TRACE("WM_CAPTURECHANGED %p\n", hWnd); |
| state = get_button_state( hWnd ); |
| if (state & BUTTON_BTNPRESSED) |
| { |
| state &= BUTTON_NSTATES; |
| set_button_state( hWnd, state ); |
| if (state & BUTTON_HIGHLIGHTED) SendMessageW( hWnd, BM_SETSTATE, FALSE, 0 ); |
| } |
| break; |
| |
| case WM_MOUSEMOVE: |
| if ((wParam & MK_LBUTTON) && GetCapture() == hWnd) |
| { |
| GetClientRect( hWnd, &rect ); |
| SendMessageW( hWnd, BM_SETSTATE, PtInRect(&rect, pt), 0 ); |
| } |
| break; |
| |
| case WM_SETTEXT: |
| { |
| /* Clear an old text here as Windows does */ |
| HDC hdc = GetDC(hWnd); |
| HBRUSH hbrush; |
| RECT client, rc; |
| HWND parent = GetParent(hWnd); |
| |
| if (!parent) parent = hWnd; |
| hbrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, |
| (WPARAM)hdc, (LPARAM)hWnd); |
| if (!hbrush) /* did the app forget to call DefWindowProc ? */ |
| hbrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC, |
| (WPARAM)hdc, (LPARAM)hWnd); |
| |
| GetClientRect(hWnd, &client); |
| rc = client; |
| BUTTON_CalcLabelRect(hWnd, hdc, &rc); |
| /* Clip by client rect bounds */ |
| if (rc.right > client.right) rc.right = client.right; |
| if (rc.bottom > client.bottom) rc.bottom = client.bottom; |
| FillRect(hdc, &rc, hbrush); |
| ReleaseDC(hWnd, hdc); |
| |
| if (unicode) DefWindowProcW( hWnd, WM_SETTEXT, wParam, lParam ); |
| else DefWindowProcA( hWnd, WM_SETTEXT, wParam, lParam ); |
| if (btn_type == BS_GROUPBOX) /* Yes, only for BS_GROUPBOX */ |
| InvalidateRect( hWnd, NULL, TRUE ); |
| else |
| paint_button( hWnd, btn_type, ODA_DRAWENTIRE ); |
| return 1; /* success. FIXME: check text length */ |
| } |
| |
| case WM_SETFONT: |
| set_button_font( hWnd, (HFONT)wParam ); |
| if (lParam) InvalidateRect(hWnd, NULL, TRUE); |
| break; |
| |
| case WM_GETFONT: |
| return (LRESULT)get_button_font( hWnd ); |
| |
| case WM_SETFOCUS: |
| TRACE("WM_SETFOCUS %p\n",hWnd); |
| set_button_state( hWnd, get_button_state(hWnd) | BUTTON_HASFOCUS ); |
| paint_button( hWnd, btn_type, ODA_FOCUS ); |
| if (style & BS_NOTIFY) |
| BUTTON_NOTIFY_PARENT(hWnd, BN_SETFOCUS); |
| break; |
| |
| case WM_KILLFOCUS: |
| TRACE("WM_KILLFOCUS %p\n",hWnd); |
| state = get_button_state( hWnd ); |
| set_button_state( hWnd, state & ~BUTTON_HASFOCUS ); |
| paint_button( hWnd, btn_type, ODA_FOCUS ); |
| |
| if ((state & BUTTON_BTNPRESSED) && GetCapture() == hWnd) |
| ReleaseCapture(); |
| if (style & BS_NOTIFY) |
| BUTTON_NOTIFY_PARENT(hWnd, BN_KILLFOCUS); |
| |
| InvalidateRect( hWnd, NULL, FALSE ); |
| break; |
| |
| case WM_SYSCOLORCHANGE: |
| InvalidateRect( hWnd, NULL, FALSE ); |
| break; |
| |
| case BM_SETSTYLE: |
| if ((wParam & 0x0f) >= MAX_BTN_TYPE) break; |
| btn_type = wParam & 0x0f; |
| style = (style & ~0x0f) | btn_type; |
| WIN_SetStyle( hWnd, style, 0x0f & ~style ); |
| |
| /* Only redraw if lParam flag is set.*/ |
| if (lParam) |
| InvalidateRect( hWnd, NULL, TRUE ); |
| |
| break; |
| |
| case BM_CLICK: |
| SendMessageW( hWnd, WM_LBUTTONDOWN, 0, 0 ); |
| SendMessageW( hWnd, WM_LBUTTONUP, 0, 0 ); |
| break; |
| |
| case BM_SETIMAGE: |
| /* Check that image format matches button style */ |
| switch (style & (BS_BITMAP|BS_ICON)) |
| { |
| case BS_BITMAP: |
| if (wParam != IMAGE_BITMAP) return 0; |
| break; |
| case BS_ICON: |
| if (wParam != IMAGE_ICON) return 0; |
| break; |
| default: |
| return 0; |
| } |
| oldHbitmap = (HBITMAP)SetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET, lParam ); |
| InvalidateRect( hWnd, NULL, FALSE ); |
| return (LRESULT)oldHbitmap; |
| |
| case BM_GETIMAGE: |
| return GetWindowLongPtrW( hWnd, HIMAGE_GWL_OFFSET ); |
| |
| case BM_GETCHECK: |
| return get_button_state( hWnd ) & 3; |
| |
| case BM_SETCHECK: |
| if (wParam > maxCheckState[btn_type]) wParam = maxCheckState[btn_type]; |
| state = get_button_state( hWnd ); |
| if ((btn_type == BS_RADIOBUTTON) || (btn_type == BS_AUTORADIOBUTTON)) |
| { |
| if (wParam) WIN_SetStyle( hWnd, WS_TABSTOP, 0 ); |
| else WIN_SetStyle( hWnd, 0, WS_TABSTOP ); |
| } |
| if ((state & 3) != wParam) |
| { |
| set_button_state( hWnd, (state & ~3) | wParam ); |
| paint_button( hWnd, btn_type, ODA_SELECT ); |
| } |
| if ((btn_type == BS_AUTORADIOBUTTON) && (wParam == BUTTON_CHECKED) && (style & WS_CHILD)) |
| BUTTON_CheckAutoRadioButton( hWnd ); |
| break; |
| |
| case BM_GETSTATE: |
| return get_button_state( hWnd ); |
| |
| case BM_SETSTATE: |
| state = get_button_state( hWnd ); |
| if (wParam) |
| set_button_state( hWnd, state | BUTTON_HIGHLIGHTED ); |
| else |
| set_button_state( hWnd, state & ~BUTTON_HIGHLIGHTED ); |
| |
| paint_button( hWnd, btn_type, ODA_SELECT ); |
| break; |
| |
| case WM_NCHITTEST: |
| if(btn_type == BS_GROUPBOX) return HTTRANSPARENT; |
| /* fall through */ |
| default: |
| return unicode ? DefWindowProcW(hWnd, uMsg, wParam, lParam) : |
| DefWindowProcA(hWnd, uMsg, wParam, lParam); |
| } |
| return 0; |
| } |
| |
| /********************************************************************** |
| * Convert button styles to flags used by DrawText. |
| */ |
| static UINT BUTTON_BStoDT( DWORD style, DWORD ex_style ) |
| { |
| UINT dtStyle = DT_NOCLIP; /* We use SelectClipRgn to limit output */ |
| |
| /* "Convert" pushlike buttons to pushbuttons */ |
| if (style & BS_PUSHLIKE) |
| style &= ~0x0F; |
| |
| if (!(style & BS_MULTILINE)) |
| dtStyle |= DT_SINGLELINE; |
| else |
| dtStyle |= DT_WORDBREAK; |
| |
| switch (style & BS_CENTER) |
| { |
| case BS_LEFT: /* DT_LEFT is 0 */ break; |
| case BS_RIGHT: dtStyle |= DT_RIGHT; break; |
| case BS_CENTER: dtStyle |= DT_CENTER; break; |
| default: |
| /* Pushbutton's text is centered by default */ |
| if (get_button_type(style) <= BS_DEFPUSHBUTTON) dtStyle |= DT_CENTER; |
| /* all other flavours have left aligned text */ |
| } |
| |
| if (ex_style & WS_EX_RIGHT) dtStyle = DT_RIGHT | (dtStyle & ~(DT_LEFT | DT_CENTER)); |
| |
| /* DrawText ignores vertical alignment for multiline text, |
| * but we use these flags to align label manually. |
| */ |
| if (get_button_type(style) != BS_GROUPBOX) |
| { |
| switch (style & BS_VCENTER) |
| { |
| case BS_TOP: /* DT_TOP is 0 */ break; |
| case BS_BOTTOM: dtStyle |= DT_BOTTOM; break; |
| case BS_VCENTER: /* fall through */ |
| default: dtStyle |= DT_VCENTER; break; |
| } |
| } |
| else |
| /* GroupBox's text is always single line and is top aligned. */ |
| dtStyle |= DT_SINGLELINE; |
| |
| return dtStyle; |
| } |
| |
| /********************************************************************** |
| * BUTTON_CalcLabelRect |
| * |
| * Calculates label's rectangle depending on button style. |
| * |
| * Returns flags to be passed to DrawText. |
| * Calculated rectangle doesn't take into account button state |
| * (pushed, etc.). If there is nothing to draw (no text/image) output |
| * rectangle is empty, and return value is (UINT)-1. |
| */ |
| static UINT BUTTON_CalcLabelRect(HWND hwnd, HDC hdc, RECT *rc) |
| { |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); |
| LONG ex_style = GetWindowLongW( hwnd, GWL_EXSTYLE ); |
| WCHAR *text; |
| ICONINFO iconInfo; |
| BITMAP bm; |
| UINT dtStyle = BUTTON_BStoDT( style, ex_style ); |
| RECT r = *rc; |
| INT n; |
| |
| /* Calculate label rectangle according to label type */ |
| switch (style & (BS_ICON|BS_BITMAP)) |
| { |
| case BS_TEXT: |
| if (!(text = get_button_text( hwnd ))) goto empty_rect; |
| if (!text[0]) |
| { |
| HeapFree( GetProcessHeap(), 0, text ); |
| goto empty_rect; |
| } |
| DrawTextW(hdc, text, -1, &r, dtStyle | DT_CALCRECT); |
| HeapFree( GetProcessHeap(), 0, text ); |
| break; |
| |
| case BS_ICON: |
| if (!GetIconInfo((HICON)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), &iconInfo)) |
| goto empty_rect; |
| |
| GetObjectW (iconInfo.hbmColor, sizeof(BITMAP), &bm); |
| |
| r.right = r.left + bm.bmWidth; |
| r.bottom = r.top + bm.bmHeight; |
| |
| DeleteObject(iconInfo.hbmColor); |
| DeleteObject(iconInfo.hbmMask); |
| break; |
| |
| case BS_BITMAP: |
| if (!GetObjectW( (HANDLE)GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ), sizeof(BITMAP), &bm)) |
| goto empty_rect; |
| |
| r.right = r.left + bm.bmWidth; |
| r.bottom = r.top + bm.bmHeight; |
| break; |
| |
| default: |
| empty_rect: |
| rc->right = r.left; |
| rc->bottom = r.top; |
| return (UINT)-1; |
| } |
| |
| /* Position label inside bounding rectangle according to |
| * alignment flags. (calculated rect is always left-top aligned). |
| * If label is aligned to any side - shift label in opposite |
| * direction to leave extra space for focus rectangle. |
| */ |
| switch (dtStyle & (DT_CENTER|DT_RIGHT)) |
| { |
| case DT_LEFT: r.left++; r.right++; break; |
| case DT_CENTER: n = r.right - r.left; |
| r.left = rc->left + ((rc->right - rc->left) - n) / 2; |
| r.right = r.left + n; break; |
| case DT_RIGHT: n = r.right - r.left; |
| r.right = rc->right - 1; |
| r.left = r.right - n; |
| break; |
| } |
| |
| switch (dtStyle & (DT_VCENTER|DT_BOTTOM)) |
| { |
| case DT_TOP: r.top++; r.bottom++; break; |
| case DT_VCENTER: n = r.bottom - r.top; |
| r.top = rc->top + ((rc->bottom - rc->top) - n) / 2; |
| r.bottom = r.top + n; break; |
| case DT_BOTTOM: n = r.bottom - r.top; |
| r.bottom = rc->bottom - 1; |
| r.top = r.bottom - n; |
| break; |
| } |
| |
| *rc = r; |
| return dtStyle; |
| } |
| |
| |
| /********************************************************************** |
| * BUTTON_DrawTextCallback |
| * |
| * Callback function used by DrawStateW function. |
| */ |
| static BOOL CALLBACK BUTTON_DrawTextCallback(HDC hdc, LPARAM lp, WPARAM wp, int cx, int cy) |
| { |
| RECT rc; |
| rc.left = 0; |
| rc.top = 0; |
| rc.right = cx; |
| rc.bottom = cy; |
| |
| DrawTextW(hdc, (LPCWSTR)lp, -1, &rc, (UINT)wp); |
| return TRUE; |
| } |
| |
| |
| /********************************************************************** |
| * BUTTON_DrawLabel |
| * |
| * Common function for drawing button label. |
| */ |
| static void BUTTON_DrawLabel(HWND hwnd, HDC hdc, UINT dtFlags, const RECT *rc) |
| { |
| DRAWSTATEPROC lpOutputProc = NULL; |
| LPARAM lp; |
| WPARAM wp = 0; |
| HBRUSH hbr = 0; |
| UINT flags = IsWindowEnabled(hwnd) ? DSS_NORMAL : DSS_DISABLED; |
| LONG state = get_button_state( hwnd ); |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); |
| WCHAR *text = NULL; |
| |
| /* FIXME: To draw disabled label in Win31 look-and-feel, we probably |
| * must use DSS_MONO flag and COLOR_GRAYTEXT brush (or maybe DSS_UNION). |
| * I don't have Win31 on hand to verify that, so I leave it as is. |
| */ |
| |
| if ((style & BS_PUSHLIKE) && (state & BUTTON_3STATE)) |
| { |
| hbr = GetSysColorBrush(COLOR_GRAYTEXT); |
| flags |= DSS_MONO; |
| } |
| |
| switch (style & (BS_ICON|BS_BITMAP)) |
| { |
| case BS_TEXT: |
| /* DST_COMPLEX -- is 0 */ |
| lpOutputProc = BUTTON_DrawTextCallback; |
| if (!(text = get_button_text( hwnd ))) return; |
| lp = (LPARAM)text; |
| wp = dtFlags; |
| break; |
| |
| case BS_ICON: |
| flags |= DST_ICON; |
| lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ); |
| break; |
| |
| case BS_BITMAP: |
| flags |= DST_BITMAP; |
| lp = GetWindowLongPtrW( hwnd, HIMAGE_GWL_OFFSET ); |
| break; |
| |
| default: |
| return; |
| } |
| |
| DrawStateW(hdc, hbr, lpOutputProc, lp, wp, rc->left, rc->top, |
| rc->right - rc->left, rc->bottom - rc->top, flags); |
| HeapFree( GetProcessHeap(), 0, text ); |
| } |
| |
| /********************************************************************** |
| * Push Button Functions |
| */ |
| static void PB_Paint( HWND hwnd, HDC hDC, UINT action ) |
| { |
| RECT rc, r; |
| UINT dtFlags, uState; |
| HPEN hOldPen; |
| HBRUSH hOldBrush; |
| INT oldBkMode; |
| COLORREF oldTxtColor; |
| HFONT hFont; |
| LONG state = get_button_state( hwnd ); |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); |
| BOOL pushedState = (state & BUTTON_HIGHLIGHTED); |
| HWND parent; |
| |
| GetClientRect( hwnd, &rc ); |
| |
| /* Send WM_CTLCOLOR to allow changing the font (the colors are fixed) */ |
| if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); |
| parent = GetParent(hwnd); |
| if (!parent) parent = hwnd; |
| SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd ); |
| |
| setup_clipping( hwnd, hDC ); |
| |
| hOldPen = SelectObject(hDC, SYSCOLOR_GetPen(COLOR_WINDOWFRAME)); |
| hOldBrush = SelectObject(hDC,GetSysColorBrush(COLOR_BTNFACE)); |
| oldBkMode = SetBkMode(hDC, TRANSPARENT); |
| |
| if (get_button_type(style) == BS_DEFPUSHBUTTON) |
| { |
| if (action != ODA_FOCUS) |
| Rectangle(hDC, rc.left, rc.top, rc.right, rc.bottom); |
| InflateRect( &rc, -1, -1 ); |
| } |
| |
| /* completely skip the drawing if only focus has changed */ |
| if (action == ODA_FOCUS) goto draw_focus; |
| |
| uState = DFCS_BUTTONPUSH; |
| |
| if (style & BS_FLAT) |
| uState |= DFCS_MONO; |
| else if (pushedState) |
| { |
| if (get_button_type(style) == BS_DEFPUSHBUTTON ) |
| uState |= DFCS_FLAT; |
| else |
| uState |= DFCS_PUSHED; |
| } |
| |
| if (state & (BUTTON_CHECKED | BUTTON_3STATE)) |
| uState |= DFCS_CHECKED; |
| |
| DrawFrameControl( hDC, &rc, DFC_BUTTON, uState ); |
| |
| /* draw button label */ |
| r = rc; |
| dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &r); |
| |
| if (dtFlags == (UINT)-1L) |
| goto cleanup; |
| |
| if (pushedState) |
| OffsetRect(&r, 1, 1); |
| |
| oldTxtColor = SetTextColor( hDC, GetSysColor(COLOR_BTNTEXT) ); |
| |
| BUTTON_DrawLabel(hwnd, hDC, dtFlags, &r); |
| |
| SetTextColor( hDC, oldTxtColor ); |
| |
| draw_focus: |
| if (action == ODA_FOCUS || (state & BUTTON_HASFOCUS)) |
| { |
| InflateRect( &rc, -2, -2 ); |
| DrawFocusRect( hDC, &rc ); |
| } |
| |
| cleanup: |
| SelectObject( hDC, hOldPen ); |
| SelectObject( hDC, hOldBrush ); |
| SetBkMode(hDC, oldBkMode); |
| } |
| |
| /********************************************************************** |
| * Check Box & Radio Button Functions |
| */ |
| |
| static void CB_Paint( HWND hwnd, HDC hDC, UINT action ) |
| { |
| RECT rbox, rtext, client; |
| HBRUSH hBrush; |
| int delta; |
| UINT dtFlags; |
| HFONT hFont; |
| LONG state = get_button_state( hwnd ); |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); |
| HWND parent; |
| |
| if (style & BS_PUSHLIKE) |
| { |
| PB_Paint( hwnd, hDC, action ); |
| return; |
| } |
| |
| GetClientRect(hwnd, &client); |
| rbox = rtext = client; |
| |
| if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); |
| |
| parent = GetParent(hwnd); |
| if (!parent) parent = hwnd; |
| hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, |
| (WPARAM)hDC, (LPARAM)hwnd); |
| if (!hBrush) /* did the app forget to call defwindowproc ? */ |
| hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC, |
| (WPARAM)hDC, (LPARAM)hwnd ); |
| setup_clipping( hwnd, hDC ); |
| |
| if (style & BS_LEFTTEXT) |
| { |
| /* magic +4 is what CTL3D expects */ |
| |
| rtext.right -= checkBoxWidth + 4; |
| rbox.left = rbox.right - checkBoxWidth; |
| } |
| else |
| { |
| rtext.left += checkBoxWidth + 4; |
| rbox.right = checkBoxWidth; |
| } |
| |
| /* Since WM_ERASEBKGND does nothing, first prepare background */ |
| if (action == ODA_SELECT) FillRect( hDC, &rbox, hBrush ); |
| if (action == ODA_DRAWENTIRE) FillRect( hDC, &client, hBrush ); |
| |
| /* Draw label */ |
| client = rtext; |
| dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rtext); |
| |
| /* Only adjust rbox when rtext is valid */ |
| if (dtFlags != (UINT)-1L) |
| { |
| rbox.top = rtext.top; |
| rbox.bottom = rtext.bottom; |
| } |
| |
| /* Draw the check-box bitmap */ |
| if (action == ODA_DRAWENTIRE || action == ODA_SELECT) |
| { |
| UINT flags; |
| |
| if ((get_button_type(style) == BS_RADIOBUTTON) || |
| (get_button_type(style) == BS_AUTORADIOBUTTON)) flags = DFCS_BUTTONRADIO; |
| else if (state & BUTTON_3STATE) flags = DFCS_BUTTON3STATE; |
| else flags = DFCS_BUTTONCHECK; |
| |
| if (state & (BUTTON_CHECKED | BUTTON_3STATE)) flags |= DFCS_CHECKED; |
| if (state & BUTTON_HIGHLIGHTED) flags |= DFCS_PUSHED; |
| |
| if (style & WS_DISABLED) flags |= DFCS_INACTIVE; |
| |
| /* rbox must have the correct height */ |
| delta = rbox.bottom - rbox.top - checkBoxHeight; |
| |
| if (style & BS_TOP) { |
| if (delta > 0) { |
| rbox.bottom = rbox.top + checkBoxHeight; |
| } else { |
| rbox.top -= -delta/2 + 1; |
| rbox.bottom = rbox.top + checkBoxHeight; |
| } |
| } else if (style & BS_BOTTOM) { |
| if (delta > 0) { |
| rbox.top = rbox.bottom - checkBoxHeight; |
| } else { |
| rbox.bottom += -delta/2 + 1; |
| rbox.top = rbox.bottom - checkBoxHeight; |
| } |
| } else { /* Default */ |
| if (delta > 0) { |
| int ofs = (delta / 2); |
| rbox.bottom -= ofs + 1; |
| rbox.top = rbox.bottom - checkBoxHeight; |
| } else if (delta < 0) { |
| int ofs = (-delta / 2); |
| rbox.top -= ofs + 1; |
| rbox.bottom = rbox.top + checkBoxHeight; |
| } |
| } |
| |
| DrawFrameControl( hDC, &rbox, DFC_BUTTON, flags ); |
| } |
| |
| if (dtFlags == (UINT)-1L) /* Noting to draw */ |
| return; |
| |
| if (action == ODA_DRAWENTIRE) |
| BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rtext); |
| |
| /* ... and focus */ |
| if (action == ODA_FOCUS || (state & BUTTON_HASFOCUS)) |
| { |
| rtext.left--; |
| rtext.right++; |
| IntersectRect(&rtext, &rtext, &client); |
| DrawFocusRect( hDC, &rtext ); |
| } |
| } |
| |
| |
| /********************************************************************** |
| * BUTTON_CheckAutoRadioButton |
| * |
| * hwnd is checked, uncheck every other auto radio button in group |
| */ |
| static void BUTTON_CheckAutoRadioButton( HWND hwnd ) |
| { |
| HWND parent, sibling, start; |
| |
| parent = GetParent(hwnd); |
| /* make sure that starting control is not disabled or invisible */ |
| start = sibling = GetNextDlgGroupItem( parent, hwnd, TRUE ); |
| do |
| { |
| if (!sibling) break; |
| if ((hwnd != sibling) && |
| ((GetWindowLongW( sibling, GWL_STYLE) & 0x0f) == BS_AUTORADIOBUTTON)) |
| SendMessageW( sibling, BM_SETCHECK, BUTTON_UNCHECKED, 0 ); |
| sibling = GetNextDlgGroupItem( parent, sibling, FALSE ); |
| } while (sibling != start); |
| } |
| |
| |
| /********************************************************************** |
| * Group Box Functions |
| */ |
| |
| static void GB_Paint( HWND hwnd, HDC hDC, UINT action ) |
| { |
| RECT rc, rcFrame; |
| HBRUSH hbr; |
| HFONT hFont; |
| UINT dtFlags; |
| TEXTMETRICW tm; |
| LONG style = GetWindowLongW( hwnd, GWL_STYLE ); |
| HWND parent; |
| |
| if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); |
| /* GroupBox acts like static control, so it sends CTLCOLORSTATIC */ |
| parent = GetParent(hwnd); |
| if (!parent) parent = hwnd; |
| hbr = (HBRUSH)SendMessageW(parent, WM_CTLCOLORSTATIC, (WPARAM)hDC, (LPARAM)hwnd); |
| if (!hbr) /* did the app forget to call defwindowproc ? */ |
| hbr = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORSTATIC, |
| (WPARAM)hDC, (LPARAM)hwnd); |
| setup_clipping( hwnd, hDC ); |
| |
| GetClientRect( hwnd, &rc); |
| rcFrame = rc; |
| |
| GetTextMetricsW (hDC, &tm); |
| rcFrame.top += (tm.tmHeight / 2) - 1; |
| DrawEdge (hDC, &rcFrame, EDGE_ETCHED, BF_RECT | ((style & BS_FLAT) ? BF_FLAT : 0)); |
| |
| InflateRect(&rc, -7, 1); |
| dtFlags = BUTTON_CalcLabelRect(hwnd, hDC, &rc); |
| |
| if (dtFlags == (UINT)-1L) |
| return; |
| |
| /* Because buttons have CS_PARENTDC class style, there is a chance |
| * that label will be drawn out of client rect. |
| * But Windows doesn't clip label's rect, so do I. |
| */ |
| |
| /* There is 1-pixel margin at the left, right, and bottom */ |
| rc.left--; rc.right++; rc.bottom++; |
| FillRect(hDC, &rc, hbr); |
| rc.left++; rc.right--; rc.bottom--; |
| |
| BUTTON_DrawLabel(hwnd, hDC, dtFlags, &rc); |
| } |
| |
| |
| /********************************************************************** |
| * User Button Functions |
| */ |
| |
| static void UB_Paint( HWND hwnd, HDC hDC, UINT action ) |
| { |
| RECT rc; |
| HBRUSH hBrush; |
| HFONT hFont; |
| LONG state = get_button_state( hwnd ); |
| HWND parent; |
| |
| GetClientRect( hwnd, &rc); |
| |
| if ((hFont = get_button_font( hwnd ))) SelectObject( hDC, hFont ); |
| |
| parent = GetParent(hwnd); |
| if (!parent) parent = hwnd; |
| hBrush = (HBRUSH)SendMessageW(parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd); |
| if (!hBrush) /* did the app forget to call defwindowproc ? */ |
| hBrush = (HBRUSH)DefWindowProcW(parent, WM_CTLCOLORBTN, |
| (WPARAM)hDC, (LPARAM)hwnd); |
| |
| FillRect( hDC, &rc, hBrush ); |
| if (action == ODA_FOCUS || (state & BUTTON_HASFOCUS)) |
| DrawFocusRect( hDC, &rc ); |
| |
| switch (action) |
| { |
| case ODA_FOCUS: |
| BUTTON_NOTIFY_PARENT( hwnd, (state & BUTTON_HASFOCUS) ? BN_SETFOCUS : BN_KILLFOCUS ); |
| break; |
| |
| case ODA_SELECT: |
| BUTTON_NOTIFY_PARENT( hwnd, (state & BUTTON_HIGHLIGHTED) ? BN_HILITE : BN_UNHILITE ); |
| break; |
| |
| default: |
| BUTTON_NOTIFY_PARENT( hwnd, BN_PAINT ); |
| break; |
| } |
| } |
| |
| |
| /********************************************************************** |
| * Ownerdrawn Button Functions |
| */ |
| |
| static void OB_Paint( HWND hwnd, HDC hDC, UINT action ) |
| { |
| LONG state = get_button_state( hwnd ); |
| DRAWITEMSTRUCT dis; |
| LONG_PTR id = GetWindowLongPtrW( hwnd, GWLP_ID ); |
| HWND parent; |
| HFONT hFont, hPrevFont = 0; |
| |
| dis.CtlType = ODT_BUTTON; |
| dis.CtlID = id; |
| dis.itemID = 0; |
| dis.itemAction = action; |
| dis.itemState = ((state & BUTTON_HASFOCUS) ? ODS_FOCUS : 0) | |
| ((state & BUTTON_HIGHLIGHTED) ? ODS_SELECTED : 0) | |
| (IsWindowEnabled(hwnd) ? 0: ODS_DISABLED); |
| dis.hwndItem = hwnd; |
| dis.hDC = hDC; |
| dis.itemData = 0; |
| GetClientRect( hwnd, &dis.rcItem ); |
| |
| if ((hFont = get_button_font( hwnd ))) hPrevFont = SelectObject( hDC, hFont ); |
| parent = GetParent(hwnd); |
| if (!parent) parent = hwnd; |
| SendMessageW( parent, WM_CTLCOLORBTN, (WPARAM)hDC, (LPARAM)hwnd ); |
| |
| setup_clipping( hwnd, hDC ); |
| |
| SendMessageW( GetParent(hwnd), WM_DRAWITEM, id, (LPARAM)&dis ); |
| if (hPrevFont) SelectObject(hDC, hPrevFont); |
| } |
