switcherwindow.cpp

   1 // $Id: switcherwindow.cpp,v 1.3 2003/08/03 16:56:29 nedko Exp $
   2 //
   3 // Desktop Switcher
   4 // Copyright (C) 2000,2001,2002 Nedko Arnaudov <nedko@users.sourceforge.net>
   5 //
   6 // This program is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // This program 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
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with this program; if not, write to the Free Software
  18 // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19
  20 #include "ph.h"
  21 #include "SwitcherWindow.h"
  22 #include "DesktopSwitcher.h"
  23 #include "Desktop.h"
  24 #include "RunDialog.h"
  25 #include "resource.h"
  26 #include "png.h"
  27
  28 #define BACKGROUD_COLOR  RGB(96,96,96)
  29 #define TEXT_COLOR       RGB(220,220,220)
  30 #define DOCK             10
  31
  32 CSwitcherWindow::CSwitcherWindow(CDesktopSwitcher *pDesktopSwitcher, CDesktop *pDesktop)
  33 {
  34   m_pDesktopSwitcher = pDesktopSwitcher;
  35   m_pDesktop = pDesktop;
  36   m_pMoveWnd = NULL;
  37 }
  38
  39 CSwitcherWindow::~CSwitcherWindow()
  40 {
  41 }
  42
  43 BOOL CSwitcherWindow::Create()
  44 {
  45   RECT rect = {0,0,g_Image.GetWidth(),g_Image.GetHeight()};
  46   if (!CWindowImpl<CSwitcherWindow>::Create(NULL, // Desktop is our parent
  47                                             rect, // Window rectangle
  48                                             "rDesktop Switcher", // Window name
  49                                             WS_POPUP, // Style
  50                                             WS_EX_TOPMOST|WS_EX_TOOLWINDOW|WS_EX_LAYERED, // Extended style
  51                                             0))
  52   {
  53     DWORD dwError = GetLastError();
  54     return FALSE;
  55   }
  56
  57   m_pDesktopSwitcher->RegisterHotKeys(m_hWnd);
  58
  59   DrawWindow();
  60
  61   return TRUE;
  62 }
  63
  64 LRESULT CSwitcherWindow::OnClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
  65 {
  66   m_pDesktopSwitcher->Exit();
  67   return 0;
  68 }
  69
  70 LRESULT CSwitcherWindow::OnHotKey(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
  71 {
  72   WORD wVKey = HIWORD(lParam);
  73   WORD wModifiers = LOWORD(lParam);
  74   m_pDesktopSwitcher->HotKeyPressed(wVKey,wModifiers);
  75
  76   return 0;
  77 }
  78
  79 void CSwitcherWindow::ToggleVisible()
  80 {
  81   ShowWindow(IsWindowVisible()?SW_HIDE:SW_SHOW);
  82 }
  83
  84 LRESULT CSwitcherWindow::OnRButtonDown(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
  85 {
  86   unsigned int n = 0;
  87   HMENU hMenu = CreatePopupMenu();
  88   MENUITEMINFO mi;
  89   mi.cbSize = sizeof(MENUITEMINFO);
  90   mi.fMask = MIIM_TYPE|MIIM_ID;
  91   mi.fType = MFT_STRING;
  92
  93   mi.dwTypeData = "Run...";
  94   mi.wID = ID_RUN;
  95   InsertMenuItem(hMenu,n++,TRUE,&mi);
  96
  97   mi.dwTypeData = "Exit";
  98   mi.wID = ID_EXIT;
  99   InsertMenuItem(hMenu,n++,TRUE,&mi);
 100
 101   POINT pt;
 102   pt.x = LOWORD(lParam);
 103   pt.y = HIWORD(lParam);
 104
 105   TrackPopupMenu(hMenu,TPM_LEFTALIGN,pt.x,pt.y,0,m_hWnd,NULL);
 106   return 0;
 107 }
 108
 109 void CSwitcherWindow::DrawWindow()
 110 {
 111   const char *pszDesktopName = m_pDesktop->GetDesktopName();
 112   HDC hScreenDC = NULL;
 113   HDC hMemoryDC = NULL;
 114   HBITMAP hBitmap = NULL;
 115   RECT r;
 116
 117   GetWindowRect(&r);
 118
 119   // setup the blend function
 120   BLENDFUNCTION blendPixelFunction = { AC_SRC_OVER, 0, 0xFF,AC_SRC_ALPHA };
 121
 122   POINT ptSrc = {0,0}; // start point of the copy from hMemoryDC to hScreenDC
 123   POINT ptWindowScreenPosition = {r.left,r.top};
 124   SIZE szWindow = {g_Image.GetWidth(), g_Image.GetHeight()};
 125
 126   if (pszDesktopName == NULL)
 127     goto Exit;
 128
 129   hScreenDC = ::GetDC(m_hWnd);
 130   if (hScreenDC == NULL)
 131     goto Exit;
 132
 133   hMemoryDC = ::CreateCompatibleDC(hScreenDC);
 134   if (hMemoryDC == NULL)
 135     goto Exit;
 136
 137   hBitmap = g_Image.CreateBitmap(hMemoryDC);
 138   if (hBitmap == NULL)
 139     goto Exit;
 140
 141   if (SelectObject(hMemoryDC,hBitmap) == NULL)
 142     goto Exit;
 143
 144   // perform the alpha blend
 145   UpdateLayeredWindow(m_hWnd,
 146                       hScreenDC,
 147                       &ptWindowScreenPosition,
 148                       &szWindow,
 149                       hMemoryDC,
 150                       &ptSrc,
 151                       0,
 152                       &blendPixelFunction,
 153                       ULW_ALPHA);
 154
 155  Exit:
 156   if (hMemoryDC)
 157     VERIFY(DeleteDC(hMemoryDC));
 158
 159   if (hScreenDC)
 160     VERIFY(ReleaseDC(hScreenDC));
 161
 162   if (hBitmap)
 163     VERIFY(DeleteObject(hBitmap));
 164 }
 165
 166 LRESULT CSwitcherWindow::OnNCHitText(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 167 {
 168   return HTCAPTION;
 169 }
 170
 171 LRESULT CSwitcherWindow::OnRun(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
 172 {
 173   CRunDialog dlg;
 174
 175   const char *szExec = dlg.DoModal(m_hWnd);
 176   if (szExec)
 177     m_pDesktop->Run(szExec);
 178   return 0;
 179 }
 180
 181 LRESULT CSwitcherWindow::OnExit(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
 182 {
 183   m_pDesktopSwitcher->Exit();
 184   return 0;
 185 }
 186
 187 void CSwitcherWindow::Destroy()
 188 {
 189   VERIFY(DestroyWindow());
 190 }
 191
 192 void CSwitcherWindow::OnRun()
 193 {
 194   PostMessage(WM_COMMAND,MAKEWPARAM(ID_RUN,1),NULL);
 195 }
 196
 197 LRESULT CSwitcherWindow::OnExitSizeMove(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
 198 {/*
 199   RECT rect;
 200   VERIFY(GetWindowRect(&rect));
 201   if (rect.left > -DOCK && rect.left < DOCK)
 202   {
 203     rect.right -= rect.left;
 204     rect.left = 0;
 205   }
 206
 207   if (rect.top+11 > -DOCK && rect.top+11 < DOCK)
 208   {
 209     rect.bottom -= rect.top+11;
 210     rect.top = -11;
 211   }
 212
 213   VERIFY(SetWindowPos(NULL,rect.left,rect.top,10,10,SWP_NOACTIVATE|SWP_NOOWNERZORDER|SWP_NOSIZE|SWP_NOZORDER|SWP_SHOWWINDOW));*/
 214   return 0;
 215 }