Some basic action functionality for application DocPage Organizer

Pdf4QtDocPageOrganizer/mainwindow.cpp

@@ -69,6 +69,7 @@ MainWindow::MainWindow(QWidget* parent) :
     ui->actionSeparate_to_Multiple_Documents_Grouped->setData(int(Operation::SeparateGrouped));
 
     QToolBar* mainToolbar = addToolBar(tr("Main"));
+    mainToolbar->setObjectName("main_toolbar");
     mainToolbar->addAction(ui->actionAddDocument);
     mainToolbar->addSeparator();
     mainToolbar->addActions({ ui->actionCloneSelection, ui->actionRemoveSelection });
@@ -77,16 +78,21 @@ MainWindow::MainWindow(QWidget* parent) :
     mainToolbar->addSeparator();
     mainToolbar->addActions({ ui->actionGroup, ui->actionUngroup });
     QToolBar* insertToolbar = addToolBar(tr("Insert"));
+    insertToolbar->setObjectName("insert_toolbar");
     insertToolbar->addActions({ ui->actionInsert_Page_from_PDF, ui->actionInsert_Image, ui->actionInsert_Empty_Page });
     QToolBar* selectToolbar = addToolBar(tr("Select"));
+    selectToolbar->setObjectName("select_toolbar");
     selectToolbar->addActions({ ui->actionSelect_None, ui->actionSelect_All, ui->actionSelect_Even, ui->actionSelect_Odd, ui->actionSelect_Portrait, ui->actionSelect_Landscape });
     QToolBar* zoomToolbar = addToolBar(tr("Zoom"));
+    zoomToolbar->setObjectName("zoom_toolbar");
     zoomToolbar->addActions({ ui->actionZoom_In, ui->actionZoom_Out });
     QToolBar* makeToolbar = addToolBar(tr("Make"));
+    makeToolbar->setObjectName("make_toolbar");
     makeToolbar->addActions({ ui->actionUnited_Document, ui->actionSeparate_to_Multiple_Documents, ui->actionSeparate_to_Multiple_Documents_Grouped });
 
     QSize iconSize = pdf::PDFWidgetUtils::scaleDPI(this, QSize(24, 24));
-    for (QToolBar* toolbar : findChildren<QToolBar*>())
+    auto toolbars = findChildren<QToolBar*>();
+    for (QToolBar* toolbar : toolbars)
     {
         toolbar->setIconSize(iconSize);
     }
@@ -306,7 +312,83 @@ bool MainWindow::canPerformOperation(Operation operation) const
 
 void MainWindow::performOperation(Operation operation)
 {
+    switch (operation)
+    {
+        case Operation::CloneSelection:
+        case Operation::RemoveSelection:
+        case Operation::ReplaceSelection:
+        case Operation::RestoreRemovedItems:
+        case Operation::Cut:
+        case Operation::Copy:
+        case Operation::Paste:
+        case Operation::RotateLeft:
+        case Operation::RotateRight:
+            break;
 
+        case Operation::Group:
+        case Operation::Ungroup:
+            break;
+
+        case Operation::SelectNone:
+            ui->documentItemsView->clearSelection();
+            break;
+
+        case Operation::SelectAll:
+            ui->documentItemsView->selectAll();
+            break;
+
+        case Operation::SelectEven:
+            ui->documentItemsView->selectionModel()->select(m_model->getSelectionEven(), QItemSelectionModel::ClearAndSelect);
+            break;
+
+        case Operation::SelectOdd:
+            ui->documentItemsView->selectionModel()->select(m_model->getSelectionOdd(), QItemSelectionModel::ClearAndSelect);
+            break;
+
+        case Operation::SelectPortrait:
+            ui->documentItemsView->selectionModel()->select(m_model->getSelectionPortrait(), QItemSelectionModel::ClearAndSelect);
+            break;
+
+        case Operation::SelectLandscape:
+            ui->documentItemsView->selectionModel()->select(m_model->getSelectionLandscape(), QItemSelectionModel::ClearAndSelect);
+            break;
+
+        case Operation::ZoomIn:
+        {
+            QSize pageImageSize = m_delegate->getPageImageSize();
+            pageImageSize *= 1.2;
+            pageImageSize = pageImageSize.boundedTo(getMaxPageImageSize());
+
+            if (pageImageSize != m_delegate->getPageImageSize())
+            {
+                m_delegate->setPageImageSize(pageImageSize);
+            }
+            break;
+        }
+
+        case Operation::ZoomOut:
+        {
+            QSize pageImageSize = m_delegate->getPageImageSize();
+            pageImageSize /= 1.2;
+            pageImageSize = pageImageSize.expandedTo(getMinPageImageSize());
+
+            if (pageImageSize != m_delegate->getPageImageSize())
+            {
+                m_delegate->setPageImageSize(pageImageSize);
+            }
+            break;
+        }
+
+        case Operation::Unite:
+        case Operation::Separate:
+        case Operation::SeparateGrouped:
+
+        default:
+            Q_ASSERT(false);
+            break;
+    }
+
+    updateActions();
 }
 
 }   // namespace pdfdocpage

Pdf4QtDocPageOrganizer/pageitemdelegate.cpp

@@ -18,6 +18,7 @@
 #include "pageitemdelegate.h"
 #include "pageitemmodel.h"
 #include "pdfwidgetutils.h"
+#include "pdfpainterutils.h"
 
 #include <QPainter>
 
@@ -49,6 +50,7 @@ void PageItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& opti
 
     QSize scaledSize = pdf::PDFWidgetUtils::scaleDPI(option.widget, m_pageImageSize);
     int verticalSpacing = pdf::PDFWidgetUtils::scaleDPI_y(option.widget, getVerticalSpacing());
+    int horizontalSpacing = pdf::PDFWidgetUtils::scaleDPI_x(option.widget, getHorizontalSpacing());
 
     QRect pageBoundingRect = QRect(QPoint(rect.left() + (rect.width() - scaledSize.width()) / 2, rect.top() + verticalSpacing), scaledSize);
 
@@ -78,6 +80,21 @@ void PageItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& opti
         selectedColor.setAlphaF(0.3);
         painter->fillRect(rect, selectedColor);
     }
+
+    QPoint tagPoint = rect.topRight() + QPoint(-horizontalSpacing, verticalSpacing);
+    for (const QString& tag : item->tags)
+    {
+        QStringList splitted = tag.split('@', Qt::KeepEmptyParts);
+        if (splitted.size() != 2 || splitted.back().isEmpty())
+        {
+            continue;
+        }
+
+        QColor color;
+        color.setNamedColor(splitted.front());
+        QRect bubbleRect = pdf::PDFPainterHelper::drawBubble(painter, tagPoint, color, splitted.back(), Qt::AlignLeft | Qt::AlignBottom);
+        tagPoint.ry() += bubbleRect.height() + verticalSpacing;
+    }
 }
 
 QSize PageItemDelegate::sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const
@@ -95,9 +112,13 @@ QSize PageItemDelegate::getPageImageSize() const
     return m_pageImageSize;
 }
 
-void PageItemDelegate::setPageImageSize(const QSize& pageImageSize)
+void PageItemDelegate::setPageImageSize(QSize pageImageSize)
 {
-    m_pageImageSize = pageImageSize;
+    if (m_pageImageSize != pageImageSize)
+    {
+        m_pageImageSize = pageImageSize;
+        emit sizeHintChanged(QModelIndex());
+    }
 }
 
 }   // namespace pdfdocpage

Pdf4QtDocPageOrganizer/pageitemdelegate.h

@@ -40,7 +40,7 @@ public:
     virtual QSize sizeHint(const QStyleOptionViewItem& option, const QModelIndex& index) const override;
 
     QSize getPageImageSize() const;
-    void setPageImageSize(const QSize& pageImageSize);
+    void setPageImageSize(QSize pageImageSize);
 
 private:
     static constexpr int getVerticalSpacing() { return 5; }

Pdf4QtDocPageOrganizer/pageitemmodel.cpp

@@ -141,6 +141,55 @@ bool PageItemModel::isGrouped(const QModelIndexList& indices) const
     return false;
 }
 
+QItemSelection PageItemModel::getSelectionEven() const
+{
+    return getSelectionImpl([](const PageGroupItem::GroupItem& groupItem) { return groupItem.pageIndex % 2 == 1; });
+}
+
+QItemSelection PageItemModel::getSelectionOdd() const
+{
+    return getSelectionImpl([](const PageGroupItem::GroupItem& groupItem) { return groupItem.pageIndex % 2 == 0; });
+}
+
+QItemSelection PageItemModel::getSelectionPortrait() const
+{
+    return getSelectionImpl([](const PageGroupItem::GroupItem& groupItem) { return groupItem.rotatedPageDimensionsMM.width() <= groupItem.rotatedPageDimensionsMM.height(); });
+}
+
+QItemSelection PageItemModel::getSelectionLandscape() const
+{
+    return getSelectionImpl([](const PageGroupItem::GroupItem& groupItem) { return groupItem.rotatedPageDimensionsMM.width() >= groupItem.rotatedPageDimensionsMM.height(); });
+}
+
+QItemSelection PageItemModel::getSelectionImpl(std::function<bool (const PageGroupItem::GroupItem&)> filter) const
+{
+    QItemSelection result;
+
+    for (int i = 0; i < rowCount(QModelIndex()); ++i)
+    {
+        QModelIndex rowIndex = index(i, 0, QModelIndex());
+        if (const PageGroupItem* item = getItem(rowIndex))
+        {
+            bool isApplied = false;
+            for (const auto& groupItem : item->groups)
+            {
+                if (filter(groupItem))
+                {
+                    isApplied = true;
+                    break;
+                }
+            }
+
+            if (isApplied)
+            {
+                result.select(rowIndex, rowIndex);
+            }
+        }
+    }
+
+    return result;
+}
+
 void PageItemModel::createDocumentGroup(int index)
 {
     const DocumentItem& item = m_documents.at(index);
@@ -154,7 +203,7 @@ void PageItemModel::createDocumentGroup(int index)
 
     if (pageCount > 1)
     {
-        newItem.tags = QStringList() << QString("0x00FF00@+%1").arg(pageCount - 1);
+        newItem.tags = QStringList() << QString("#00CC00@+%1").arg(pageCount - 1);
     }
 
     newItem.groups.reserve(pageCount);
@@ -186,4 +235,5 @@ QString PageItemModel::getGroupNameFromDocument(int index) const
     return fileInfo.fileName();
 }
 
+
 }   // namespace pdfdocpage

Pdf4QtDocPageOrganizer/pageitemmodel.h

@@ -80,9 +80,15 @@ public:
     ///  Returns true, if grouped item exists in the indices
     bool isGrouped(const QModelIndexList& indices) const;
 
+    QItemSelection getSelectionEven() const;
+    QItemSelection getSelectionOdd() const;
+    QItemSelection getSelectionPortrait() const;
+    QItemSelection getSelectionLandscape() const;
+
 private:
     void createDocumentGroup(int index);
     QString getGroupNameFromDocument(int index) const;
+    QItemSelection getSelectionImpl(std::function<bool(const PageGroupItem::GroupItem&)> filter) const;
 
     std::vector<PageGroupItem> m_pageGroupItems;
     std::map<int, DocumentItem> m_documents;

Pdf4QtLib/Pdf4QtLib.pro

@@ -68,6 +68,7 @@ SOURCES += \
     sources/pdfoutline.cpp \
     sources/pdfpagenavigation.cpp \
     sources/pdfpagetransition.cpp \
+    sources/pdfpainterutils.cpp \
     sources/pdfparser.cpp \
     sources/pdfdocument.cpp \
     sources/pdfdocumentreader.cpp \

Pdf4QtLib/sources/pdfpainterutils.cpp

@@ -0,0 +1,63 @@
+//    Copyright (C) 2021 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 "pdfpainterutils.h"
+
+#include <QFontMetrics>
+
+namespace pdf
+{
+
+QRect PDFPainterHelper::drawBubble(QPainter* painter, QPoint point, QColor color, QString text, Qt::Alignment alignment)
+{
+    QFontMetrics fontMetrics = painter->fontMetrics();
+
+    const int lineSpacing = fontMetrics.lineSpacing();
+    const int bubbleHeight = lineSpacing* 2;
+    const int bubbleWidth = lineSpacing + fontMetrics.horizontalAdvance(text);
+
+    QRect rectangle(point, QSize(bubbleWidth, bubbleHeight));
+
+    if (alignment.testFlag(Qt::AlignVCenter))
+    {
+        rectangle.translate(0, -rectangle.height() / 2);
+    }
+    else if (alignment.testFlag(Qt::AlignTop))
+    {
+        rectangle.translate(0, -rectangle.height());
+    }
+
+    if (alignment.testFlag(Qt::AlignHCenter))
+    {
+        rectangle.translate(-rectangle.width() / 2, 0);
+    }
+    else if (alignment.testFlag(Qt::AlignLeft))
+    {
+        rectangle.translate(-rectangle.width(), 0);
+    }
+
+    PDFPainterStateGuard guard(painter);
+    painter->setPen(Qt::NoPen);
+    painter->setBrush(QBrush(color));
+    painter->drawRoundedRect(rectangle, rectangle.height() / 2, rectangle.height() / 2, Qt::AbsoluteSize);
+    painter->setPen(Qt::black);
+    painter->drawText(rectangle, Qt::AlignCenter, text);
+
+    return rectangle;
+}
+
+}   // namespace pdf

Pdf4QtLib/sources/pdfpainterutils.h

@@ -18,6 +18,8 @@
 #ifndef PDFPAINTERUTILS_H
 #define PDFPAINTERUTILS_H
 
+#include "pdfglobal.h"
+
 #include <QPainter>
 
 namespace pdf
@@ -42,6 +44,19 @@ private:
     QPainter* m_painter;
 };
 
+class Pdf4QtLIBSHARED_EXPORT PDFPainterHelper
+{
+public:
+    /// Draws bubble using painter. Bubble is aligned to the point, colored with color
+    /// and inside bubble, text is being paint. Bubble bounding box is being returned.
+    /// \param painter Painter
+    /// \param point Position of the bubble
+    /// \param color Color of the bubble
+    /// \param text Text inside the bubble
+    /// \param alignment Bubble alignment relative to the bubble position point
+    static QRect drawBubble(QPainter* painter, QPoint point, QColor color, QString text, Qt::Alignment alignment);
+};
+
 }   // namespace pdf
 
 #endif // PDFPAINTERUTILS_H