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 "config.h"
22
23 #include <stdarg.h>
24 #include <stdio.h>
25 #include <string.h>
26 #ifdef HAVE_UNISTD_H
27 # include <unistd.h>
28 #endif
29
30 #include "windef.h"
31 #include "winbase.h"
32 #include "wingdi.h"
33 #include "winuser.h"
34 #include "wine/unicode.h"
35 #include "controls.h"
36 #include "win.h"
37
38 static BOOL bMultiLineTitle;
39 static HFONT hIconTitleFont;
40
41 static LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam );
42
43 /*********************************************************************
44 * icon title class descriptor
45 */
46 const struct builtin_class_descr ICONTITLE_builtin_class =
47 {
48 (LPCWSTR)ICONTITLE_CLASS_ATOM, /* name */
49 0, /* style */
50 NULL, /* procA (winproc is Unicode only) */
51 IconTitleWndProc, /* procW */
52 0, /* extra */
53 IDC_ARROW, /* cursor */
54 0 /* brush */
55 };
56
57
58
59 /***********************************************************************
60 * ICONTITLE_Create
61 */
62 HWND ICONTITLE_Create( HWND owner )
63 {
64 HWND hWnd;
65 HINSTANCE instance = (HINSTANCE)GetWindowLongPtrA( owner, GWLP_HINSTANCE );
66 LONG style = WS_CLIPSIBLINGS;
67
68 if (!IsWindowEnabled(owner)) style |= WS_DISABLED;
69 if( GetWindowLongA( owner, GWL_STYLE ) & WS_CHILD )
70 hWnd = CreateWindowExA( 0, (LPCSTR)ICONTITLE_CLASS_ATOM, NULL,
71 style | WS_CHILD, 0, 0, 1, 1,
72 GetParent(owner), 0, instance, NULL );
73 else
74 hWnd = CreateWindowExA( 0, (LPCSTR)ICONTITLE_CLASS_ATOM, NULL,
75 style, 0, 0, 1, 1,
76 owner, 0, instance, NULL );
77 WIN_SetOwner( hWnd, owner ); /* MDI depends on this */
78 SetWindowLongW( hWnd, GWL_STYLE,
79 GetWindowLongW( hWnd, GWL_STYLE ) & ~(WS_CAPTION | WS_BORDER) );
80 return hWnd;
81 }
82
83 /***********************************************************************
84 * ICONTITLE_SetTitlePos
85 */
86 static BOOL ICONTITLE_SetTitlePos( HWND hwnd, HWND owner )
87 {
88 static const WCHAR emptyTitleText[] = {'<','.','.','.','>',0};
89 WCHAR str[80];
90 HDC hDC;
91 HFONT hPrevFont;
92 RECT rect;
93 INT cx, cy;
94 POINT pt;
95
96 int length = GetWindowTextW( owner, str, sizeof(str)/sizeof(WCHAR) );
97
98 while (length && str[length - 1] == ' ') /* remove trailing spaces */
99 str[--length] = 0;
100
101 if( !length )
102 {
103 strcpyW( str, emptyTitleText );
104 length = strlenW( str );
105 }
106
107 if (!(hDC = GetDC( hwnd ))) return FALSE;
108
109 hPrevFont = SelectObject( hDC, hIconTitleFont );
110
111 SetRect( &rect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) -
112 GetSystemMetrics(SM_CXBORDER) * 2,
113 GetSystemMetrics(SM_CYBORDER) * 2 );
114
115 DrawTextW( hDC, str, length, &rect, DT_CALCRECT | DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
116 (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
117
118 SelectObject( hDC, hPrevFont );
119 ReleaseDC( hwnd, hDC );
120
121 cx = rect.right - rect.left + 4 * GetSystemMetrics(SM_CXBORDER);
122 cy = rect.bottom - rect.top;
123
124 pt.x = (GetSystemMetrics(SM_CXICON) - cx) / 2;
125 pt.y = GetSystemMetrics(SM_CYICON);
126
127 /* point is relative to owner, make it relative to parent */
128 MapWindowPoints( owner, GetParent(hwnd), &pt, 1 );
129
130 SetWindowPos( hwnd, owner, pt.x, pt.y, cx, cy, SWP_NOACTIVATE );
131 return TRUE;
132 }
133
134 /***********************************************************************
135 * ICONTITLE_Paint
136 */
137 static BOOL ICONTITLE_Paint( HWND hwnd, HWND owner, HDC hDC, BOOL bActive )
138 {
139 RECT rect;
140 HFONT hPrevFont;
141 HBRUSH hBrush = 0;
142 COLORREF textColor = 0;
143
144 if( bActive )
145 {
146 hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION);
147 textColor = GetSysColor(COLOR_CAPTIONTEXT);
148 }
149 else
150 {
151 if( GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD )
152 {
153 hBrush = (HBRUSH) GetClassLongPtrW(hwnd, GCLP_HBRBACKGROUND);
154 if( hBrush )
155 {
156 INT level;
157 LOGBRUSH logBrush;
158 GetObjectA( hBrush, sizeof(logBrush), &logBrush );
159 level = GetRValue(logBrush.lbColor) +
160 GetGValue(logBrush.lbColor) +
161 GetBValue(logBrush.lbColor);
162 if( level < (0x7F * 3) )
163 textColor = RGB( 0xFF, 0xFF, 0xFF );
164 }
165 else
166 hBrush = GetStockObject( WHITE_BRUSH );
167 }
168 else
169 {
170 hBrush = GetStockObject( BLACK_BRUSH );
171 textColor = RGB( 0xFF, 0xFF, 0xFF );
172 }
173 }
174
175 GetClientRect( hwnd, &rect );
176 DPtoLP( hDC, (LPPOINT)&rect, 2 );
177 FillRect( hDC, &rect, hBrush );
178
179 hPrevFont = SelectObject( hDC, hIconTitleFont );
180 if( hPrevFont )
181 {
182 WCHAR buffer[80];
183
184 INT length = GetWindowTextW( owner, buffer, sizeof(buffer)/sizeof(buffer[0]) );
185 SetTextColor( hDC, textColor );
186 SetBkMode( hDC, TRANSPARENT );
187
188 DrawTextW( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
189 DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
190
191 SelectObject( hDC, hPrevFont );
192 }
193 return (hPrevFont != 0);
194 }
195
196 /***********************************************************************
197 * IconTitleWndProc
198 */
199 LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
200 WPARAM wParam, LPARAM lParam )
201 {
202 HWND owner = GetWindow( hWnd, GW_OWNER );
203
204 if (!IsWindow(hWnd)) return 0;
205
206 switch( msg )
207 {
208 case WM_CREATE:
209 if (!hIconTitleFont)
210 {
211 LOGFONTA logFont;
212 SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
213 SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
214 hIconTitleFont = CreateFontIndirectA( &logFont );
215 }
216 return (hIconTitleFont ? 0 : -1);
217 case WM_NCHITTEST:
218 return HTCAPTION;
219 case WM_NCMOUSEMOVE:
220 case WM_NCLBUTTONDBLCLK:
221 return SendMessageW( owner, msg, wParam, lParam );
222 case WM_ACTIVATE:
223 if( wParam ) SetActiveWindow( owner );
224 return 0;
225 case WM_CLOSE:
226 return 0;
227 case WM_SHOWWINDOW:
228 if (wParam) ICONTITLE_SetTitlePos( hWnd, owner );
229 return 0;
230 case WM_ERASEBKGND:
231 if( GetWindowLongW( owner, GWL_STYLE ) & WS_CHILD )
232 lParam = SendMessageW( owner, WM_ISACTIVEICON, 0, 0 );
233 else
234 lParam = (owner == GetActiveWindow());
235 if( ICONTITLE_Paint( hWnd, owner, (HDC)wParam, (BOOL)lParam ) )
236 ValidateRect( hWnd, NULL );
237 return 1;
238 }
239 return DefWindowProcW( hWnd, msg, wParam, lParam );
240 }
241
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