File indexing completed on 2024-04-21 05:48:32

 /*
     SPDX-FileCopyrightText: 2016 ROSA
     SPDX-License-Identifier: GPL-3.0-or-later
 */
 
 ////////////////////////////////////////////////////////////////////////////////
 // Windows implementation of ExternalProgressBar
 
 
 #include <QWidget>
 
 #include "externalprogressbar.h"
 
 // Class with platform-specific data
 class ExternalProgressBarPrivate
 {
 public:
     ExternalProgressBarPrivate();
     ~ExternalProgressBarPrivate();
 
     // Windows7 Taskbar interface for mirroring the progress bar
     ITaskbarList3* m_Win7TaskbarList;
 
     // Main window handle for selecting the correct taskbar button
     HWND m_hWnd;
 };
 
 ExternalProgressBarPrivate::ExternalProgressBarPrivate() :
     m_Win7TaskbarList(NULL),
     m_hWnd(NULL)
 {
 }
 
 ExternalProgressBarPrivate::~ExternalProgressBarPrivate()
 {
 }
 
 
 ExternalProgressBar::ExternalProgressBar(QWidget* mainWindow) :
     d_ptr(new ExternalProgressBarPrivate()),
     m_MaxValue(0)
 {
     // Get the taskbar object (if NULL is returned it won't be used - e.g. on pre-7 Windows versions)
     CoCreateInstance(CLSID_TaskbarList, NULL, CLSCTX_ALL, IID_ITaskbarList3, reinterpret_cast<void**>(&d_ptr->m_Win7TaskbarList));
     // Store the window handle. In Windows winId() returns HWND.
     d_ptr->m_hWnd = reinterpret_cast<HWND>(mainWindow->winId());
 }
 
 ExternalProgressBar::~ExternalProgressBar()
 {
     DestroyProgressBar();
     if (d_ptr->m_Win7TaskbarList != NULL)
         d_ptr->m_Win7TaskbarList->Release();
     delete d_ptr;
 }
 
 // Initializes the external progress bar and sets its limits
 bool ExternalProgressBar::InitProgressBar(quint64 maxSteps)
 {
     bool res = true;
     m_MaxValue = maxSteps;
 
     // When we set the progress value, TBPF_NORMAL is set automatically
     if (d_ptr->m_Win7TaskbarList != NULL)
         res = (d_ptr->m_Win7TaskbarList->SetProgressValue(d_ptr->m_hWnd, 0, maxSteps) == S_OK);
 
     return res;
 }
 
 // Deinitializes the external progress bar and returns into the normal state
 bool ExternalProgressBar::DestroyProgressBar()
 {
     bool res = true;
 
     if (d_ptr->m_Win7TaskbarList != NULL)
         res = (d_ptr->m_Win7TaskbarList->SetProgressState(d_ptr->m_hWnd, TBPF_NOPROGRESS) == S_OK);
 
     return res;
 }
 
 // Updates the current progress bar position
 bool ExternalProgressBar::SetProgressValue(quint64 currentSteps)
 {
     bool res = true;
 
     if (d_ptr->m_Win7TaskbarList != NULL)
         res = (d_ptr->m_Win7TaskbarList->SetProgressValue(d_ptr->m_hWnd, currentSteps, m_MaxValue) == S_OK);
 
     return res;
 }
 
 // Sets the progress bar to indicate pause
 bool ExternalProgressBar::ProgressSetPause()
 {
     bool res = true;
 
     if (d_ptr->m_Win7TaskbarList != NULL)
         res = (d_ptr->m_Win7TaskbarList->SetProgressState(d_ptr->m_hWnd, TBPF_PAUSED) == S_OK);
 
     return res;
 }
 
 // Sets the progress bar to indicate an error
 bool ExternalProgressBar::ProgressSetError()
 {
     bool res = true;
 
     if (d_ptr->m_Win7TaskbarList != NULL)
         res = (d_ptr->m_Win7TaskbarList->SetProgressState(d_ptr->m_hWnd, TBPF_ERROR) == S_OK);
 
     return res;
 }