2011-04-03 21:50:44 +02:00
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/* EcWin7 - Support library for integrating Windows 7 taskbar features
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* into any Qt application
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* Copyright (C) 2010 Emanuele Colombo
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "ecwin7.h"
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// Windows only definitions
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#ifdef W7API
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DEFINE_GUID(CLSID_TaskbarList,0x56fdf344,0xfd6d,0x11d0,0x95,0x8a,0x0,0x60,0x97,0xc9,0xa0,0x90);
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DEFINE_GUID(IID_ITaskbarList3,0xea1afb91,0x9e28,0x4b86,0x90,0xE9,0x9e,0x9f,0x8a,0x5e,0xef,0xaf);
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// Constructor: variabiles initialization
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EcWin7::EcWin7()
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{
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mOverlayIcon = NULL;
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}
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// Init taskbar communication
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void EcWin7::init(WId wid)
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{
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mWindowId = wid;
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mTaskbarMessageId = RegisterWindowMessage(L"TaskbarButtonCreated");
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}
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// Windows event handler callback function
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// (handles taskbar communication initial message)
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bool EcWin7::winEvent(MSG * message, long * result)
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{
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if (message->message == mTaskbarMessageId)
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{
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HRESULT hr = CoCreateInstance(CLSID_TaskbarList,
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0,
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CLSCTX_INPROC_SERVER,
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IID_ITaskbarList3,
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reinterpret_cast<void**> (&(mTaskbar)));
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*result = hr;
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return true;
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}
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return false;
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}
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// Set progress bar current value
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void EcWin7::setProgressValue(int value, int max)
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{
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mTaskbar->SetProgressValue(mWindowId, value, max);
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}
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// Set progress bar current state (active, error, pause, ecc...)
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void EcWin7::setProgressState(ToolBarProgressState state)
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{
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mTaskbar->SetProgressState(mWindowId, (TBPFLAG)state);
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}
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// Set new overlay icon and corresponding description (for accessibility)
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// (call with iconName == "" and description == "" to remove any previous overlay icon)
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void EcWin7::setOverlayIcon(QString iconName, QString description)
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{
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HICON oldIcon = NULL;
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if (mOverlayIcon != NULL) oldIcon = mOverlayIcon;
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if (iconName == "")
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{
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mTaskbar->SetOverlayIcon(mWindowId, NULL, NULL);
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mOverlayIcon = NULL;
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}
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else
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{
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mOverlayIcon = (HICON) LoadImage(GetModuleHandle(NULL),
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iconName.toStdWString().c_str(),
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IMAGE_ICON,
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0,
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0,
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NULL);
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mTaskbar->SetOverlayIcon(mWindowId, mOverlayIcon, description.toStdWString().c_str());
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}
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if ((oldIcon != NULL) && (oldIcon != mOverlayIcon))
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{
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DestroyIcon(oldIcon);
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}
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}
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#endif
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