From 7264a45e30ceaafbff06d6a97672e9b42c9eea3f Mon Sep 17 00:00:00 2001
From: Jakub Melka <Jakub.Melka@seznam.cz>
Date: Wed, 16 Jun 2021 18:45:47 +0200
Subject: [PATCH] Pin/unpin functionality

---
 .../objectinspectordialog.cpp                 | 30 +++++++++++++++++
 .../objectinspectordialog.h                   |  2 ++
 .../objectinspectordialog.ui                  |  3 ++
 .../objectviewerwidget.cpp                    | 33 ++++++++++++++++++-
 .../objectviewerwidget.h                      |  4 +++
 5 files changed, 71 insertions(+), 1 deletion(-)

diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
index 0493e65..5fa5eb1 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.cpp
@@ -103,6 +103,8 @@ ObjectInspectorDialog::ObjectInspectorDialog(const pdf::PDFCMS* cms, const pdf::
     ui->splitter->setSizes(QList<int>() << pdf::PDFWidgetUtils::scaleDPI_x(this, 300) << pdf::PDFWidgetUtils::scaleDPI_x(this, 200));
 
     connect(ui->objectTreeView->selectionModel(), &QItemSelectionModel::currentChanged, this, &ObjectInspectorDialog::onCurrentIndexChanged);
+    connect(ui->currentObjectWidget, &ObjectViewerWidget::pinRequest, this, &ObjectInspectorDialog::onPinRequest);
+    connect(ui->currentObjectWidget, &ObjectViewerWidget::unpinRequest, this, &ObjectInspectorDialog::onUnpinRequest);
 
     ui->objectTreeView->setMinimumWidth(pdf::PDFWidgetUtils::scaleDPI_x(this, 200));
     setMinimumSize(pdf::PDFWidgetUtils::scaleDPI(this, QSize(800, 600)));
@@ -119,6 +121,34 @@ void ObjectInspectorDialog::onModeChanged()
     m_model->setMode(mode);
 }
 
+void ObjectInspectorDialog::onPinRequest()
+{
+    ObjectViewerWidget* source = qobject_cast<ObjectViewerWidget*>(sender());
+
+    if (!source || source != ui->currentObjectWidget)
+    {
+        return;
+    }
+
+    ObjectViewerWidget* cloned = ui->currentObjectWidget->clone(true, this);
+    connect(cloned, &ObjectViewerWidget::pinRequest, this, &ObjectInspectorDialog::onPinRequest);
+    connect(cloned, &ObjectViewerWidget::unpinRequest, this, &ObjectInspectorDialog::onUnpinRequest);
+    ui->tabWidget->addTab(cloned, cloned->getTitleText());
+}
+
+void ObjectInspectorDialog::onUnpinRequest()
+{
+    ObjectViewerWidget* source = qobject_cast<ObjectViewerWidget*>(sender());
+
+    if (!source || source == ui->currentObjectWidget)
+    {
+        return;
+    }
+
+    ui->tabWidget->removeTab(ui->tabWidget->indexOf(source));
+    source->deleteLater();
+}
+
 void ObjectInspectorDialog::onCurrentIndexChanged(const QModelIndex& current, const QModelIndex& previous)
 {
     Q_UNUSED(previous);
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.h b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.h
index 47c60c3..f5d1bac 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.h
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.h
@@ -43,6 +43,8 @@ public:
 
 private:
     void onModeChanged();
+    void onPinRequest();
+    void onUnpinRequest();
     void onCurrentIndexChanged(const QModelIndex& current, const QModelIndex& previous);
 
     Ui::ObjectInspectorDialog* ui;
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.ui b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.ui
index dc9f560..d740606 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.ui
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectinspectordialog.ui
@@ -40,6 +40,9 @@
       <property name="currentIndex">
        <number>0</number>
       </property>
+      <property name="movable">
+       <bool>true</bool>
+      </property>
       <widget class="QWidget" name="currentObjectTab">
        <attribute name="title">
         <string>Current Object</string>
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.cpp b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.cpp
index a551aa0..06797c7 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.cpp
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.cpp
@@ -46,7 +46,7 @@ ObjectViewerWidget::ObjectViewerWidget(bool isPinned, QWidget* parent) :
     m_printableCharacters.push_back('\n');
 
     connect(ui->pinButton, &QPushButton::clicked, this, &ObjectViewerWidget::pinRequest);
-    connect(ui->unpinButton, &QPushButton::clicked, this, &ObjectViewerWidget::pinRequest);
+    connect(ui->unpinButton, &QPushButton::clicked, this, &ObjectViewerWidget::unpinRequest);
 
     updateUi();
     updatePinnedUi();
@@ -57,6 +57,18 @@ ObjectViewerWidget::~ObjectViewerWidget()
     delete ui;
 }
 
+ObjectViewerWidget* ObjectViewerWidget::clone(bool isPinned, QWidget* parent)
+{
+    ObjectViewerWidget* cloned = new ObjectViewerWidget(isPinned, parent);
+
+    cloned->setDocument(m_document);
+    cloned->setCms(m_cms);
+    cloned->setData(m_currentReference, m_currentObject, m_isRootObject);
+
+
+    return cloned;
+}
+
 void ObjectViewerWidget::setPinned(bool isPinned)
 {
     if (m_isPinned != isPinned)
@@ -271,6 +283,25 @@ void ObjectViewerWidget::setCms(const pdf::PDFCMS* cms)
     m_cms = cms;
 }
 
+QString ObjectViewerWidget::getTitleText() const
+{
+    if (!m_currentReference.isValid())
+    {
+        return tr("[Unknown]");
+    }
+
+    QString referenceString = tr("%1 %2 R").arg(m_currentReference.objectNumber).arg(m_currentReference.generation);
+
+    if (m_isRootObject)
+    {
+        return referenceString;
+    }
+    else
+    {
+        return tr("%1 (part)").arg(referenceString);
+    }
+}
+
 const pdf::PDFDocument* ObjectViewerWidget::getDocument() const
 {
     return m_document;
diff --git a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.h b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.h
index d166ce8..ff82d40 100644
--- a/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.h
+++ b/Pdf4QtViewerPlugins/ObjectInspectorPlugin/objectviewerwidget.h
@@ -40,6 +40,8 @@ public:
     explicit ObjectViewerWidget(bool isPinned, QWidget* parent);
     virtual ~ObjectViewerWidget() override;
 
+    ObjectViewerWidget* clone(bool isPinned, QWidget* parent);
+
     void setPinned(bool isPinned);
     void setData(pdf::PDFObjectReference currentReference, pdf::PDFObject currentObject, bool isRootObject);
 
@@ -49,6 +51,8 @@ public:
     const pdf::PDFCMS* getCms() const;
     void setCms(const pdf::PDFCMS* cms);
 
+    QString getTitleText() const;
+
 signals:
     void pinRequest();
     void unpinRequest();