src/WinSevenTaskbar.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2014 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version, but always including the *additional*
   9 // restrictions defined in the "License.txt" file.
  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 along
  17 // with this program; if not, write to the Free Software Foundation, Inc.,
  18 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 //
  20 // http://www.gnu.org/licenses/gpl-2.0.txt
  21 ///////////////////////////////////////////////////////////////////////////////
  22
  23 #include "WinSevenTaskbar.h"
  24
  25 #include <QWidget>
  26 #include <QIcon>
  27
  28 //Windows includes
  29 #define NOMINMAX
  30 #define WIN32_LEAN_AND_MEAN
  31 #include <Windows.h>
  32 #include <ShObjIdl.h>
  33
  34 static UINT s_winMsg = 0;
  35 static ITaskbarList3 *s_ptbl = NULL;
  36
  37 WinSevenTaskbar::WinSevenTaskbar(void)
  38 {
  39         THROW("Cannot create instance of this class!");
  40 }
  41
  42 WinSevenTaskbar::~WinSevenTaskbar(void)
  43 {
  44 }
  45
  46 ////////////////////////////////////////////////////////////
  47
  48 #ifdef __ITaskbarList3_INTERFACE_DEFINED__
  49
  50 void WinSevenTaskbar::init(void)
  51 {
  52         s_winMsg = RegisterWindowMessageW(L"TaskbarButtonCreated");
  53         s_ptbl = NULL;
  54 }
  55
  56 void WinSevenTaskbar::uninit(void)
  57 {
  58         if(s_ptbl)
  59         {
  60                 s_ptbl->Release();
  61                 s_ptbl = NULL;
  62         }
  63 }
  64
  65 bool WinSevenTaskbar::handleWinEvent(void *message, long *result)
  66 {
  67         bool stopEvent = false;
  68
  69         if(((MSG*)message)->message == s_winMsg)
  70         {
  71                 if(!s_ptbl) createInterface();
  72                 *result = (s_ptbl) ? S_OK : S_FALSE;
  73                 stopEvent = true;
  74         }
  75
  76         return stopEvent;
  77 }
  78
  79 void WinSevenTaskbar::createInterface(void)
  80 {
  81         if(!s_ptbl)
  82         {
  83                 ITaskbarList3 *ptbl = NULL;
  84                 HRESULT hr = CoCreateInstance(CLSID_TaskbarList, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARGS(&ptbl));
  85
  86                 if (SUCCEEDED(hr))
  87                 {
  88                         HRESULT hr2 = ptbl->HrInit();
  89                         if(SUCCEEDED(hr2))
  90                         {
  91                                 s_ptbl = ptbl;
  92                                 /*qDebug("ITaskbarList3::HrInit() succeeded.");*/
  93                         }
  94                         else
  95                         {
  96                                 ptbl->Release();
  97                                 qWarning("ITaskbarList3::HrInit() has failed.");
  98                         }
  99                 }
 100                 else
 101                 {
 102                         qWarning("ITaskbarList3 could not be created.");
 103                 }
 104         }
 105 }
 106
 107 bool WinSevenTaskbar::setTaskbarState(QWidget *window, WinSevenTaskbarState state)
 108 {
 109         bool result = false;
 110
 111         if(s_ptbl && window)
 112         {
 113                 HRESULT hr = HRESULT(-1);
 114
 115                 switch(state)
 116                 {
 117                 case WinSevenTaskbarNoState:
 118                         hr = s_ptbl->SetProgressState(reinterpret_cast<HWND>(window->winId()), TBPF_NOPROGRESS);
 119                         break;
 120                 case WinSevenTaskbarNormalState:
 121                         hr = s_ptbl->SetProgressState(reinterpret_cast<HWND>(window->winId()), TBPF_NORMAL);
 122                         break;
 123                 case WinSevenTaskbarIndeterminateState:
 124                         hr = s_ptbl->SetProgressState(reinterpret_cast<HWND>(window->winId()), TBPF_INDETERMINATE);
 125                         break;
 126                 case WinSevenTaskbarErrorState:
 127                         hr = s_ptbl->SetProgressState(reinterpret_cast<HWND>(window->winId()), TBPF_ERROR);
 128                         break;
 129                 case WinSevenTaskbarPausedState:
 130                         hr = s_ptbl->SetProgressState(reinterpret_cast<HWND>(window->winId()), TBPF_PAUSED);
 131                         break;
 132                 }
 133
 134                 result = SUCCEEDED(hr);
 135         }
 136
 137         return result;
 138 }
 139
 140 void WinSevenTaskbar::setTaskbarProgress(QWidget *window, unsigned __int64 currentValue, unsigned __int64 maximumValue)
 141 {
 142         if(s_ptbl && window)
 143         {
 144                 s_ptbl->SetProgressValue(reinterpret_cast<HWND>(window->winId()), currentValue, maximumValue);
 145         }
 146 }
 147
 148 void WinSevenTaskbar::setOverlayIcon(QWidget *window, QIcon *icon)
 149 {
 150 #if QT_VERSION < QT_VERSION_CHECK(5,0,0)
 151         if(s_ptbl && window)
 152         {
 153                 s_ptbl->SetOverlayIcon(window->winId(), (icon ? icon->pixmap(16,16).toWinHICON() : NULL), L"LameXP");
 154         }
 155 #endif
 156 }
 157
 158 #else //__ITaskbarList3_INTERFACE_DEFINED__
 159
 160 LAMEXP_COMPILER_WARNING("ITaskbarList3 not defined. Compiling *without* support for Win7 taskbar!")
 161 void WinSevenTaskbar::init(void) {}
 162 void WinSevenTaskbar::uninit(void) {}
 163 bool WinSevenTaskbar::handleWinEvent(MSG *message, long *result) { return false; }
 164 void WinSevenTaskbar::createInterface(void) {}
 165 bool WinSevenTaskbar::setTaskbarState(QWidget *window, WinSevenTaskbarState state) { return false; }
 166 void WinSevenTaskbar::setTaskbarProgress(QWidget *window, unsigned __int64 currentValue, unsigned __int64 maximumValue) {}
 167 void WinSevenTaskbar::setOverlayIcon(QWidget *window, QIcon *icon) {}
 168
 169 #endif //__ITaskbarList3_INTERFACE_DEFINED__