/* * Icontitle window class. * * Copyright 1997 Alex Korobka * * 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 */ #include <stdarg.h> #include <stdio.h> #include <string.h> #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "controls.h" #include "win.h" static BOOL bMultiLineTitle; static HFONT hIconTitleFont; /********************************************************************* * icon title class descriptor */ const struct builtin_class_descr ICONTITLE_builtin_class = { (LPCWSTR)ICONTITLE_CLASS_ATOM, /* name */ 0, /* style */ WINPROC_ICONTITLE, /* proc */ 0, /* extra */ IDC_ARROW, /* cursor */ 0 /* brush */ }; /*********************************************************************** * ICONTITLE_SetTitlePos */ static BOOL ICONTITLE_SetTitlePos( HWND hwnd, HWND owner ) { WCHAR str[80]; HDC hDC; HFONT hPrevFont; RECT rect; INT cx, cy; POINT pt; int length = GetWindowTextW( owner, str, ARRAY_SIZE( str )); while (length && str[length - 1] == ' ') /* remove trailing spaces */ str[--length] = 0; if( !length ) { lstrcpyW( str, L"<...>" ); length = lstrlenW( str ); } if (!(hDC = GetDC( hwnd ))) return FALSE; hPrevFont = SelectObject( hDC, hIconTitleFont ); SetRect( &rect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) - GetSystemMetrics(SM_CXBORDER) * 2, GetSystemMetrics(SM_CYBORDER) * 2 ); DrawTextW( hDC, str, length, &rect, DT_CALCRECT | DT_CENTER | DT_NOPREFIX | DT_WORDBREAK | (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) ); SelectObject( hDC, hPrevFont ); ReleaseDC( hwnd, hDC ); cx = rect.right - rect.left + 4 * GetSystemMetrics(SM_CXBORDER); cy = rect.bottom - rect.top; pt.x = (GetSystemMetrics(SM_CXICON) - cx) / 2; pt.y = GetSystemMetrics(SM_CYICON); /* point is relative to owner, make it relative to parent */ MapWindowPoints( owner, GetParent(hwnd), &pt, 1 ); SetWindowPos( hwnd, owner, pt.x, pt.y, cx, cy, SWP_NOACTIVATE ); return TRUE; } /*********************************************************************** * ICONTITLE_Paint */ static BOOL ICONTITLE_Paint( HWND hwnd, HWND owner, HDC hDC, BOOL bActive ) { RECT rect; HFONT hPrevFont; HBRUSH hBrush; COLORREF textColor = 0; if( bActive ) { hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION); textColor = GetSysColor(COLOR_CAPTIONTEXT); } else { if( GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD ) { hBrush = (HBRUSH) GetClassLongPtrW(hwnd, GCLP_HBRBACKGROUND); if( hBrush ) { INT level; LOGBRUSH logBrush; GetObjectA( hBrush, sizeof(logBrush), &logBrush ); level = GetRValue(logBrush.lbColor) + GetGValue(logBrush.lbColor) + GetBValue(logBrush.lbColor); if( level < (0x7F * 3) ) textColor = RGB( 0xFF, 0xFF, 0xFF ); } else hBrush = GetStockObject( WHITE_BRUSH ); } else { hBrush = GetStockObject( BLACK_BRUSH ); textColor = RGB( 0xFF, 0xFF, 0xFF ); } } GetClientRect( hwnd, &rect ); DPtoLP( hDC, (LPPOINT)&rect, 2 ); FillRect( hDC, &rect, hBrush ); hPrevFont = SelectObject( hDC, hIconTitleFont ); if( hPrevFont ) { WCHAR buffer[80]; INT length = GetWindowTextW( owner, buffer, ARRAY_SIZE( buffer )); SetTextColor( hDC, textColor ); SetBkMode( hDC, TRANSPARENT ); DrawTextW( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX | DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) ); SelectObject( hDC, hPrevFont ); } return (hPrevFont != 0); } /*********************************************************************** * IconTitleWndProc */ LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { HWND owner = GetWindow( hWnd, GW_OWNER ); if (!IsWindow(hWnd)) return 0; switch( msg ) { case WM_CREATE: if (!hIconTitleFont) { LOGFONTA logFont; SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 ); SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 ); hIconTitleFont = CreateFontIndirectA( &logFont ); } return (hIconTitleFont ? 0 : -1); case WM_NCHITTEST: return HTCAPTION; case WM_NCMOUSEMOVE: case WM_NCLBUTTONDBLCLK: return SendMessageW( owner, msg, wParam, lParam ); case WM_ACTIVATE: if( wParam ) SetActiveWindow( owner ); return 0; case WM_CLOSE: return 0; case WM_SHOWWINDOW: if (wParam) ICONTITLE_SetTitlePos( hWnd, owner ); return 0; case WM_ERASEBKGND: if( GetWindowLongW( owner, GWL_STYLE ) & WS_CHILD ) lParam = SendMessageW( owner, WM_ISACTIVEICON, 0, 0 ); else lParam = (owner == GetActiveWindow()); if( ICONTITLE_Paint( hWnd, owner, (HDC)wParam, (BOOL)lParam ) ) ValidateRect( hWnd, NULL ); return 1; } return DefWindowProcW( hWnd, msg, wParam, lParam ); }