Issue #159: Renaming applications

Pdf4QtLibGui/pdfwintaskbarprogress.cpp

@@ -0,0 +1,228 @@
+//    Copyright (C) 2022 Jakub Melka
+//
+//    This file is part of PDF4QT.
+//
+//    PDF4QT is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    with the written consent of the copyright owner, any later version.
+//
+//    PDF4QT is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDF4QT.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdfwintaskbarprogress.h"
+
+#include <QWindow>
+
+#if defined(Q_OS_WIN) && !defined(PDF4QT_NO_TASKBAR_PROGRESS)
+#define PDF4QT_TASKBAR_PROGRESS
+#endif
+
+#ifdef PDF4QT_TASKBAR_PROGRESS
+#include <ShObjIdl.h>
+#endif
+
+namespace pdfviewer
+{
+
+#ifdef PDF4QT_TASKBAR_PROGRESS
+class PDFWinTaskBarProgressImpl
+{
+public:
+    PDFWinTaskBarProgressImpl()
+    {
+        HRESULT result = CoCreateInstance(CLSID_TaskbarList, nullptr, CLSCTX_INPROC_SERVER, __uuidof(ITaskbarList3), reinterpret_cast<void**>(&m_taskBarList));
+
+        if (FAILED(result))
+        {
+            qWarning("Failed to create task bar progress");
+            m_taskBarList = nullptr;
+        }
+        else
+        {
+            HRESULT taskBarInitResult = m_taskBarList->HrInit();
+
+            if (FAILED(taskBarInitResult))
+            {
+                qWarning("Failed to initialize task bar progress");
+                m_taskBarList->Release();
+                m_taskBarList = nullptr;
+            }
+        }
+    }
+
+    ~PDFWinTaskBarProgressImpl()
+    {
+        if (m_taskBarList)
+        {
+            m_taskBarList->Release();
+            m_taskBarList = nullptr;
+        }
+    }
+
+    inline HWND getHandle() const
+    {
+        return m_window ? reinterpret_cast<HWND>(m_window->winId()) : HWND();
+    }
+
+    inline void updateProgress() const
+    {
+        if (m_window && m_taskBarList)
+        {
+            const pdf::PDFReal range = m_progressMax - m_progressMin;
+            const pdf::PDFReal offset = m_value - m_progressMin;
+
+            const ULONGLONG max = 1000;
+            if (!qFuzzyIsNull(range))
+            {
+                const ULONGLONG progress = max * offset / range;
+                m_taskBarList->SetProgressValue(getHandle(), progress, max);
+            }
+            else
+            {
+                m_taskBarList->SetProgressValue(getHandle(), 0, max);
+            }
+
+            TBPFLAG stateFlag = TBPF_NOPROGRESS;
+            if (m_progressBarVisible)
+            {
+                stateFlag = TBPF_NORMAL;
+            }
+
+            m_taskBarList->SetProgressState(getHandle(), stateFlag);
+        }
+    }
+
+    inline void setWindow(QWindow* window)
+    {
+        if (m_window = window)
+        {
+            m_window = window;
+            updateProgress();
+        }
+    }
+
+    inline void reset()
+    {
+        setValue(m_progressMin);
+    }
+
+    inline void show()
+    {
+        if (!m_progressBarVisible)
+        {
+            m_progressBarVisible = true;
+            updateProgress();
+        }
+    }
+
+    inline void hide()
+    {
+        if (m_progressBarVisible)
+        {
+            m_progressBarVisible = false;
+            updateProgress();
+        }
+    }
+
+    inline void setValue(pdf::PDFInteger value)
+    {
+        if (m_value != value)
+        {
+            m_value = qBound(m_progressMin, value, m_progressMax);
+            updateProgress();
+        }
+    }
+
+    inline void setRange(pdf::PDFInteger min, pdf::PDFInteger max)
+    {
+        Q_ASSERT(min < max);
+
+        if (m_progressMin != min || m_progressMax != max)
+        {
+            m_progressMin = min;
+            m_progressMax = max;
+            m_value = qBound(min, m_value, max);
+            updateProgress();
+        }
+    }
+
+private:
+    QWindow* m_window = nullptr;
+    ITaskbarList3* m_taskBarList = nullptr;
+
+    // Progress bar
+    bool m_progressBarVisible = false;
+    pdf::PDFInteger m_progressMin = 0;
+    pdf::PDFInteger m_progressMax = 100;
+    pdf::PDFInteger m_value = 0;
+};
+
+#else
+
+class PDFWinTaskBarProgressImpl
+{
+public:
+    constexpr PDFWinTaskBarProgressImpl() = default;
+    constexpr ~PDFWinTaskBarProgressImpl() = default;
+
+    constexpr void setWindow(QWindow* window) { Q_UNUSED(window); }
+
+    constexpr void reset() { }
+    constexpr void show() { }
+    constexpr void hide() { }
+
+    constexpr void setValue(pdf::PDFInteger value) { Q_UNUSED(value); }
+    constexpr void setRange(pdf::PDFInteger min, pdf::PDFInteger max) { Q_UNUSED(min); Q_UNUSED(max); }
+};
+
+#endif
+
+PDFWinTaskBarProgress::PDFWinTaskBarProgress(QObject* parent) :
+    QObject(parent),
+    m_impl(new PDFWinTaskBarProgressImpl())
+{
+
+}
+
+PDFWinTaskBarProgress::~PDFWinTaskBarProgress()
+{
+    delete m_impl;
+}
+
+void PDFWinTaskBarProgress::setWindow(QWindow* window)
+{
+    m_impl->setWindow(window);
+}
+
+void PDFWinTaskBarProgress::reset()
+{
+    m_impl->reset();
+}
+
+void PDFWinTaskBarProgress::show()
+{
+    m_impl->show();
+}
+
+void PDFWinTaskBarProgress::hide()
+{
+    m_impl->hide();
+}
+
+void PDFWinTaskBarProgress::setValue(pdf::PDFInteger value)
+{
+    m_impl->setValue(value);
+}
+
+void PDFWinTaskBarProgress::setRange(pdf::PDFInteger min, pdf::PDFInteger max)
+{
+    m_impl->setRange(min, max);
+}
+
+}   // namespace pdfviewer