1 /* 2 * Icontitle window class. 3 * 4 * Copyright 1997 Alex Korobka 5 * 6 * This library is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * This library is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with this library; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA 19 */ 20 21 #include <user32.h> 22 23 static BOOL bMultiLineTitle; 24 static HFONT hIconTitleFont; 25 26 /********************************************************************* 27 * icon title class descriptor 28 */ 29 const struct builtin_class_descr ICONTITLE_builtin_class = 30 { 31 WC_ICONTITLE, /* name */ 32 0, /* style */ 33 NULL, /* procA (winproc is Unicode only) */ 34 IconTitleWndProc, /* procW */ 35 0, /* extra */ 36 IDC_ARROW, /* cursor */ 37 0 /* brush */ 38 }; 39 40 41 42 #ifndef __REACTOS__ 43 /*********************************************************************** 44 * ICONTITLE_Create 45 */ 46 HWND ICONTITLE_Create( HWND owner ) 47 { 48 HWND hWnd; 49 HINSTANCE instance = (HINSTANCE)GetWindowLongPtrA( owner, GWLP_HINSTANCE ); 50 LONG style = WS_CLIPSIBLINGS; 51 52 if (!IsWindowEnabled(owner)) style |= WS_DISABLED; 53 if( GetWindowLongPtrA( owner, GWL_STYLE ) & WS_CHILD ) 54 hWnd = CreateWindowExA( 0, (LPCSTR)ICONTITLE_CLASS_ATOM, NULL, 55 style | WS_CHILD, 0, 0, 1, 1, 56 GetParent(owner), 0, instance, NULL ); 57 else 58 hWnd = CreateWindowExA( 0, (LPCSTR)ICONTITLE_CLASS_ATOM, NULL, 59 style, 0, 0, 1, 1, 60 owner, 0, instance, NULL ); 61 WIN_SetOwner( hWnd, owner ); /* MDI depends on this */ 62 SetWindowLongPtrW( hWnd, GWL_STYLE, 63 GetWindowLongPtrW( hWnd, GWL_STYLE ) & ~(WS_CAPTION | WS_BORDER) ); 64 return hWnd; 65 } 66 #endif 67 68 /*********************************************************************** 69 * ICONTITLE_SetTitlePos 70 */ 71 static BOOL ICONTITLE_SetTitlePos( HWND hwnd, HWND owner ) 72 { 73 static const WCHAR emptyTitleText[] = {'<','.','.','.','>',0}; 74 WCHAR str[80]; 75 HDC hDC; 76 HFONT hPrevFont; 77 RECT rect; 78 INT cx, cy; 79 POINT pt; 80 81 int length = GetWindowTextW( owner, str, sizeof(str)/sizeof(WCHAR) ); 82 83 while (length && str[length - 1] == ' ') /* remove trailing spaces */ 84 str[--length] = 0; 85 86 if( !length ) 87 { 88 strcpyW( str, emptyTitleText ); 89 length = strlenW( str ); 90 } 91 92 if (!(hDC = GetDC( hwnd ))) return FALSE; 93 94 hPrevFont = SelectObject( hDC, hIconTitleFont ); 95 96 SetRect( &rect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) - 97 GetSystemMetrics(SM_CXBORDER) * 2, 98 GetSystemMetrics(SM_CYBORDER) * 2 ); 99 100 DrawTextW( hDC, str, length, &rect, DT_CALCRECT | DT_CENTER | DT_NOPREFIX | DT_WORDBREAK | 101 (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) ); 102 103 SelectObject( hDC, hPrevFont ); 104 ReleaseDC( hwnd, hDC ); 105 106 cx = rect.right - rect.left + 4 * GetSystemMetrics(SM_CXBORDER); 107 cy = rect.bottom - rect.top; 108 109 pt.x = (GetSystemMetrics(SM_CXICON) - cx) / 2; 110 pt.y = GetSystemMetrics(SM_CYICON); 111 112 /* point is relative to owner, make it relative to parent */ 113 MapWindowPoints( owner, GetParent(hwnd), &pt, 1 ); 114 115 SetWindowPos( hwnd, owner, pt.x, pt.y, cx, cy, SWP_NOACTIVATE ); 116 return TRUE; 117 } 118 119 /*********************************************************************** 120 * ICONTITLE_Paint 121 */ 122 static BOOL ICONTITLE_Paint( HWND hwnd, HWND owner, HDC hDC, BOOL bActive ) 123 { 124 RECT rect; 125 HFONT hPrevFont; 126 HBRUSH hBrush; 127 COLORREF textColor = 0; 128 129 if( bActive ) 130 { 131 hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION); 132 textColor = GetSysColor(COLOR_CAPTIONTEXT); 133 } 134 else 135 { 136 if( GetWindowLongPtrA( hwnd, GWL_STYLE ) & WS_CHILD ) 137 { 138 hBrush = (HBRUSH) GetClassLongPtrW(hwnd, GCLP_HBRBACKGROUND); 139 if( hBrush ) 140 { 141 INT level; 142 LOGBRUSH logBrush; 143 GetObjectA( hBrush, sizeof(logBrush), &logBrush ); 144 level = GetRValue(logBrush.lbColor) + 145 GetGValue(logBrush.lbColor) + 146 GetBValue(logBrush.lbColor); 147 if( level < (0x7F * 3) ) 148 textColor = RGB( 0xFF, 0xFF, 0xFF ); 149 } 150 else 151 hBrush = GetStockObject( WHITE_BRUSH ); 152 } 153 else 154 { 155 hBrush = GetStockObject( BLACK_BRUSH ); 156 textColor = RGB( 0xFF, 0xFF, 0xFF ); 157 } 158 } 159 160 GetClientRect( hwnd, &rect ); 161 DPtoLP( hDC, (LPPOINT)&rect, 2 ); 162 FillRect( hDC, &rect, hBrush ); 163 164 hPrevFont = SelectObject( hDC, hIconTitleFont ); 165 if( hPrevFont ) 166 { 167 WCHAR buffer[80]; 168 169 INT length = GetWindowTextW( owner, buffer, sizeof(buffer)/sizeof(buffer[0]) ); 170 SetTextColor( hDC, textColor ); 171 SetBkMode( hDC, TRANSPARENT ); 172 173 DrawTextW( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX | 174 DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) ); 175 176 SelectObject( hDC, hPrevFont ); 177 } 178 return (hPrevFont != 0); 179 } 180 181 /*********************************************************************** 182 * IconTitleWndProc 183 */ 184 LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg, 185 WPARAM wParam, LPARAM lParam ) 186 { 187 HWND owner = GetWindow( hWnd, GW_OWNER ); 188 189 if (!IsWindow(hWnd)) return 0; 190 191 switch( msg ) 192 { 193 case WM_CREATE: 194 if (!hIconTitleFont) 195 { 196 LOGFONTA logFont; 197 SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 ); 198 SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 ); 199 hIconTitleFont = CreateFontIndirectA( &logFont ); 200 } 201 return (hIconTitleFont ? 0 : -1); 202 case WM_NCHITTEST: 203 return HTCAPTION; 204 case WM_NCMOUSEMOVE: 205 case WM_NCLBUTTONDBLCLK: 206 return SendMessageW( owner, msg, wParam, lParam ); 207 case WM_ACTIVATE: 208 if( wParam ) SetActiveWindow( owner ); 209 return 0; 210 case WM_CLOSE: 211 return 0; 212 case WM_SHOWWINDOW: 213 if (wParam) ICONTITLE_SetTitlePos( hWnd, owner ); 214 return 0; 215 case WM_ERASEBKGND: 216 if( GetWindowLongPtrW( owner, GWL_STYLE ) & WS_CHILD ) 217 lParam = SendMessageW( owner, WM_ISACTIVEICON, 0, 0 ); 218 else 219 lParam = (owner == GetActiveWindow()); 220 if( ICONTITLE_Paint( hWnd, owner, (HDC)wParam, (BOOL)lParam ) ) 221 ValidateRect( hWnd, NULL ); 222 return 1; 223 } 224 return DefWindowProcW( hWnd, msg, wParam, lParam ); 225 } 226