reactos/subsys/system/explorer/taskbar/quicklaunch.cpp

   1 /*
   2  * Copyright 2003, 2004, 2005 Martin Fuchs
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20  //
  21  // Explorer clone
  22  //
  23  // quicklaunch.cpp
  24  //
  25  // Martin Fuchs, 22.08.2003
  26  //
  27
  28
  29 #include <precomp.h>
  30
  31 #include "../resource.h"
  32
  33 #include "quicklaunch.h"
  34
  35
  36 QuickLaunchEntry::QuickLaunchEntry()
  37 {
  38         _hbmp = 0;
  39 }
  40
  41 QuickLaunchMap::~QuickLaunchMap()
  42 {
  43         while(!empty()) {
  44                 iterator it = begin();
  45                 DeleteBitmap(it->second._hbmp);
  46                 erase(it);
  47         }
  48 }
  49
  50
  51 QuickLaunchBar::QuickLaunchBar(HWND hwnd)
  52  :      super(hwnd)
  53 {
  54         CONTEXT("QuickLaunchBar::QuickLaunchBar()");
  55
  56         _dir = NULL;
  57         _next_id = IDC_FIRST_QUICK_ID;
  58         _btn_dist = 20;
  59         _size = 0;
  60
  61         HWND hwndToolTip = (HWND) SendMessage(hwnd, TB_GETTOOLTIPS, 0, 0);
  62
  63         SetWindowStyle(hwndToolTip, GetWindowStyle(hwndToolTip)|TTS_ALWAYSTIP);
  64
  65          // delay refresh to some time later
  66         PostMessage(hwnd, PM_REFRESH, 0, 0);
  67 }
  68
  69 QuickLaunchBar::~QuickLaunchBar()
  70 {
  71         delete _dir;
  72 }
  73
  74 HWND QuickLaunchBar::Create(HWND hwndParent)
  75 {
  76         CONTEXT("QuickLaunchBar::Create()");
  77
  78         ClientRect clnt(hwndParent);
  79
  80         HWND hwnd = CreateToolbarEx(hwndParent,
  81                                                                 WS_CHILD|WS_VISIBLE|WS_CLIPSIBLINGS|WS_CLIPCHILDREN|
  82                                                                 CCS_TOP|CCS_NODIVIDER|CCS_NOPARENTALIGN|CCS_NORESIZE|
  83                                                                 TBSTYLE_TOOLTIPS|TBSTYLE_WRAPABLE|TBSTYLE_FLAT,
  84                                                                 IDW_QUICKLAUNCHBAR, 0, 0, 0, NULL, 0, 0, 0, 16, 16, sizeof(TBBUTTON));
  85
  86         if (hwnd)
  87                 new QuickLaunchBar(hwnd);
  88
  89         return hwnd;
  90 }
  91
  92 void QuickLaunchBar::AddShortcuts()
  93 {
  94         CONTEXT("QuickLaunchBar::AddShortcuts()");
  95
  96         WaitCursor wait;
  97
  98         try {
  99                 TCHAR path[MAX_PATH];
 100
 101                 SpecialFolderFSPath app_data(CSIDL_APPDATA, _hwnd);     ///@todo perhaps also look into CSIDL_COMMON_APPDATA ?
 102
 103                 _stprintf(path, TEXT("%s\\")QUICKLAUNCH_FOLDER, (LPCTSTR)app_data);
 104
 105                 RecursiveCreateDirectory(path);
 106                 _dir = new ShellDirectory(GetDesktopFolder(), path, _hwnd);
 107
 108                 _dir->smart_scan(SORT_NAME, /*SCAN_EXTRACT_ICONS|*/SCAN_FILESYSTEM);
 109
 110                  // immediatelly extract the shortcut icons
 111                 for(Entry*entry=_dir->_down; entry; entry=entry->_next)
 112                         try {
 113                                 entry->extract_icon(false);
 114                         } catch(COMException&) {
 115                                 // ignore unexpected exceptions while extracting icons
 116                         }
 117         } catch(COMException&) {
 118                 return;
 119         }
 120
 121
 122         ShellFolder desktop_folder;
 123         WindowCanvas canvas(_hwnd);
 124
 125         COLORREF bk_color = GetSysColor(COLOR_BTNFACE);
 126         HBRUSH bk_brush = GetSysColorBrush(COLOR_BTNFACE);
 127
 128         AddButton(ID_MINIMIZE_ALL, g_Globals._icon_cache.get_icon(ICID_LOGOFF/*@@*/).create_bitmap(bk_color, bk_brush, canvas), ResString(IDS_MINIMIZE_ALL), NULL);
 129         AddButton(ID_EXPLORE, g_Globals._icon_cache.get_icon(ICID_EXPLORER).create_bitmap(bk_color, bk_brush, canvas), ResString(IDS_TITLE), NULL);
 130
 131         TBBUTTON sep = {0, -1, TBSTATE_ENABLED, BTNS_SEP, {0, 0}, 0, 0};
 132         SendMessage(_hwnd, TB_INSERTBUTTON, INT_MAX, (LPARAM)&sep);
 133
 134         int cur_desktop = g_Globals._desktops._current_desktop;
 135         ResString desktop_fmt(IDS_DESKTOP_NUM);
 136
 137         HDC hdc = CreateCompatibleDC(canvas);
 138         DWORD size = SendMessage(_hwnd, TB_GETBUTTONSIZE, 0, 0);
 139         int cx = LOWORD(size);
 140         int cy = HIWORD(size);
 141         RECT rect = {0, 0, cx, cy};
 142         RECT textRect = {0, 0, cx-7, cy-7};
 143
 144         for(int i=0; i<DESKTOP_COUNT; ++i) {
 145                 HBITMAP hbmp = CreateCompatibleBitmap(canvas, cx, cy);
 146                 HBITMAP hbmp_old = SelectBitmap(hdc, hbmp);
 147
 148                 FmtString num_txt(TEXT("%d"), i+1);
 149                 TextColor color(hdc, RGB(64,64,64));
 150                 BkMode mode(hdc, TRANSPARENT);
 151                 FillRect(hdc, &rect, GetSysColorBrush(COLOR_BTNFACE));
 152                 DrawText(hdc, num_txt, num_txt.length(), &textRect, DT_CENTER|DT_VCENTER|DT_SINGLELINE);
 153
 154                 SelectBitmap(hdc, hbmp_old);
 155
 156                 AddButton(ID_SWITCH_DESKTOP_1+i, hbmp, FmtString(desktop_fmt, i+1), NULL, cur_desktop==i?TBSTATE_ENABLED|TBSTATE_CHECKED:TBSTATE_ENABLED);
 157         }
 158         DeleteDC(hdc);
 159
 160         SendMessage(_hwnd, TB_INSERTBUTTON, INT_MAX, (LPARAM)&sep);
 161
 162         for(Entry*entry=_dir->_down; entry; entry=entry->_next) {
 163                  // hide files like "desktop.ini"
 164                 if (entry->_data.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN)
 165                         continue;
 166
 167                          // hide subfolders
 168                         if (!(entry->_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)) {
 169                                 HBITMAP hbmp = g_Globals._icon_cache.get_icon(entry->_icon_id).create_bitmap(bk_color, bk_brush, canvas);
 170
 171                                 AddButton(_next_id++, hbmp, entry->_display_name, entry);       //entry->_etype==ET_SHELL? desktop_folder.get_name(static_cast<ShellEntry*>(entry)->_pidl): entry->_display_name);
 172                         }
 173         }
 174
 175         _btn_dist = LOWORD(SendMessage(_hwnd, TB_GETBUTTONSIZE, 0, 0));
 176         _size = _entries.size() * _btn_dist;
 177
 178         SendMessage(GetParent(_hwnd), PM_RESIZE_CHILDREN, 0, 0);
 179 }
 180
 181 void QuickLaunchBar::AddButton(int id, HBITMAP hbmp, LPCTSTR name, Entry* entry, int flags)
 182 {
 183         TBADDBITMAP ab = {0, (UINT_PTR)hbmp};
 184         int bmp_idx = SendMessage(_hwnd, TB_ADDBITMAP, 1, (LPARAM)&ab);
 185
 186         QuickLaunchEntry qle;
 187
 188         qle._hbmp = hbmp;
 189         qle._title = name;
 190         qle._entry = entry;
 191
 192         _entries[id] = qle;
 193
 194         TBBUTTON btn = {0, 0, flags, BTNS_BUTTON|BTNS_NOPREFIX, {0, 0}, 0, 0};
 195
 196         btn.idCommand = id;
 197         btn.iBitmap = bmp_idx;
 198
 199         SendMessage(_hwnd, TB_INSERTBUTTON, INT_MAX, (LPARAM)&btn);
 200 }
 201
 202 void QuickLaunchBar::UpdateDesktopButtons(int desktop_idx)
 203 {
 204         for(int i=0; i<DESKTOP_COUNT; ++i) {
 205                 TBBUTTONINFO tbi = {sizeof(TBBUTTONINFO), TBIF_STATE, 0, 0, desktop_idx==i? TBSTATE_ENABLED|TBSTATE_CHECKED: TBSTATE_ENABLED};
 206
 207                 SendMessage(_hwnd, TB_SETBUTTONINFO, ID_SWITCH_DESKTOP_1+i, (LPARAM)&tbi);
 208         }
 209 }
 210
 211 LRESULT QuickLaunchBar::WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam)
 212 {
 213         switch(nmsg) {
 214           case PM_REFRESH:
 215                 AddShortcuts();
 216                 break;
 217
 218           case PM_GET_WIDTH: {
 219                  // take line wrapping into account
 220                 int btns = SendMessage(_hwnd, TB_BUTTONCOUNT, 0, 0);
 221                 int rows = SendMessage(_hwnd, TB_GETROWS, 0, 0);
 222
 223                 if (rows<2 || rows==btns)
 224                         return _size;
 225
 226                 RECT rect;
 227                 int max_cx = 0;
 228
 229                 for(QuickLaunchMap::const_iterator it=_entries.begin(); it!=_entries.end(); ++it) {
 230                         SendMessage(_hwnd, TB_GETRECT, it->first, (LPARAM)&rect);
 231
 232                         if (rect.right > max_cx)
 233                                 max_cx = rect.right;
 234                 }
 235
 236                 return max_cx;}
 237
 238           case PM_UPDATE_DESKTOP:
 239                 UpdateDesktopButtons(wparam);
 240                 break;
 241
 242           case WM_CONTEXTMENU: {
 243                 TBBUTTON btn;
 244                 QuickLaunchMap::iterator it;
 245                 Point screen_pt(lparam), clnt_pt=screen_pt;
 246                 ScreenToClient(_hwnd, &clnt_pt);
 247
 248                 Entry* entry = NULL;
 249                 int idx = SendMessage(_hwnd, TB_HITTEST, 0, (LPARAM)&clnt_pt);
 250
 251                 if (idx>=0 &&
 252                         SendMessage(_hwnd, TB_GETBUTTON, idx, (LPARAM)&btn)!=-1 &&
 253                         (it=_entries.find(btn.idCommand))!=_entries.end()) {
 254                         entry = it->second._entry;
 255                 }
 256
 257                 if (entry)      // entry is NULL for desktop switch buttons
 258                         CHECKERROR(entry->do_context_menu(_hwnd, screen_pt, _cm_ifs));
 259                 else
 260                         goto def;
 261                 break;}
 262
 263           default: def:
 264                 return super::WndProc(nmsg, wparam, lparam);
 265         }
 266
 267         return 0;
 268 }
 269
 270 int QuickLaunchBar::Command(int id, int code)
 271 {
 272         CONTEXT("QuickLaunchBar::Command()");
 273
 274         if ((id&~0xFF) == IDC_FIRST_QUICK_ID) {
 275                 QuickLaunchEntry& qle = _entries[id];
 276
 277                 if (qle._entry) {
 278                         qle._entry->launch_entry(_hwnd);
 279                         return 0;
 280                 }
 281         }
 282
 283         return 0; // Don't return 1 to avoid recursion with DesktopBar::Command()
 284 }
 285
 286 int QuickLaunchBar::Notify(int id, NMHDR* pnmh)
 287 {
 288         switch(pnmh->code) {
 289           case TTN_GETDISPINFO: {
 290                 NMTTDISPINFO* ttdi = (NMTTDISPINFO*) pnmh;
 291
 292                 int id = ttdi->hdr.idFrom;
 293                 ttdi->lpszText = _entries[id]._title.str();
 294 #ifdef TTF_DI_SETITEM
 295                 ttdi->uFlags |= TTF_DI_SETITEM;
 296 #endif
 297
 298                  // enable multiline tooltips (break at CR/LF and for very long one-line strings)
 299                 SendMessage(pnmh->hwndFrom, TTM_SETMAXTIPWIDTH, 0, 400);
 300
 301                 break;}
 302
 303                 return super::Notify(id, pnmh);
 304         }
 305
 306         return 0;
 307 }