Sweden-Number/dlls/user32/icontitle.c

205 lines
5.9 KiB
C

/*
* 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) NtUserSetActiveWindow( 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 );
}