Editing images

Pdf4QtLibWidgets/sources/pdfpagecontenteditorediteditemsettings.cpp

@@ -22,6 +22,11 @@
 #include "pdfpagecontenteditorprocessor.h"
 #include "pdfwidgetutils.h"
 
+#include <QDir>
+#include <QFileDialog>
+#include <QImageReader>
+#include <QStandardPaths>
+
 namespace pdf
 {
 
@@ -30,6 +35,7 @@ PDFPageContentEditorEditedItemSettings::PDFPageContentEditorEditedItemSettings(Q
     ui(new Ui::PDFPageContentEditorEditedItemSettings)
 {
     ui->setupUi(this);
+    connect(ui->loadImageButton, &QPushButton::clicked, this, &PDFPageContentEditorEditedItemSettings::selectImage);
 }
 
 PDFPageContentEditorEditedItemSettings::~PDFPageContentEditorEditedItemSettings()
@@ -48,15 +54,98 @@ void PDFPageContentEditorEditedItemSettings::loadFromElement(PDFPageContentEleme
 
     if (const PDFEditedPageContentElementImage* imageElement = contentElement->asImage())
     {
-        QSize imageSize = QSize(200, 200);
-
-        QImage image = imageElement->getImage();
-        image.setDevicePixelRatio(this->devicePixelRatioF());
-        image = image.scaled(imageSize * this->devicePixelRatioF(), Qt::KeepAspectRatio);
-
         ui->tabWidget->addTab(ui->imageTab, tr("Image"));
-        ui->imageLabel->setPixmap(QPixmap::fromImage(image));
+        m_image = imageElement->getImage();
-        ui->imageLabel->setFixedSize(PDFWidgetUtils::scaleDPI(this, imageSize));
+        setImage(imageElement->getImage());
+    }
+}
+
+void PDFPageContentEditorEditedItemSettings::saveToElement(PDFPageContentElementEdited* editedElement)
+{
+    if (PDFEditedPageContentElementImage* imageElement = editedElement->getElement()->asImage())
+    {
+        imageElement->setImage(m_image);
+        imageElement->setImageObject(PDFObject());
+    }
+}
+
+static int PDF_gcd(int a, int b)
+{
+    if (b == 0)
+    {
+        return a;
+    }
+
+    return PDF_gcd(b, a % b);
+}
+
+void PDFPageContentEditorEditedItemSettings::setImage(QImage image)
+{
+    QSize imageSize = QSize(200, 200);
+
+    int width = image.width();
+    int height = image.height();
+
+    int n = width;
+    int d = height;
+
+    int divisor = PDF_gcd(n, d);
+    if (divisor > 1)
+    {
+        n /= divisor;
+        d /= divisor;
+    }
+
+    ui->imageWidthEdit->setText(QString("%1 px").arg(width));
+    ui->imageHeightEdit->setText(QString("%1 px").arg(height));
+    ui->imageRatioEdit->setText(QString("%1 : %2").arg(n).arg(d));
+
+    image.setDevicePixelRatio(this->devicePixelRatioF());
+    image = image.scaled(imageSize * this->devicePixelRatioF(), Qt::KeepAspectRatio);
+
+    ui->imageLabel->setPixmap(QPixmap::fromImage(image));
+    ui->imageLabel->setFixedSize(PDFWidgetUtils::scaleDPI(this, imageSize));
+}
+
+void PDFPageContentEditorEditedItemSettings::selectImage()
+{
+    QString imageDirectory;
+
+    QStringList pictureDirectiories = QStandardPaths::standardLocations(QStandardPaths::PicturesLocation);
+    if (!pictureDirectiories.isEmpty())
+    {
+        imageDirectory = pictureDirectiories.last();
+    }
+    else
+    {
+        imageDirectory = QDir::currentPath();
+    }
+
+    QList<QByteArray> mimeTypes = QImageReader::supportedMimeTypes();
+    QStringList mimeTypeFilters;
+    for (const QByteArray& mimeType : mimeTypes)
+    {
+        mimeTypeFilters.append(mimeType);
+    }
+
+    QFileDialog dialog(this, tr("Select Image"));
+    dialog.setDirectory(imageDirectory);
+    dialog.setMimeTypeFilters(mimeTypeFilters);
+    dialog.selectMimeTypeFilter("image/svg+xml");
+    dialog.setAcceptMode(QFileDialog::AcceptOpen);
+    dialog.setFileMode(QFileDialog::ExistingFile);
+
+    if (dialog.exec() == QFileDialog::Accepted)
+    {
+        QString fileName = dialog.selectedFiles().constFirst();
+        QImageReader reader(fileName);
+        QImage image = reader.read();
+
+        if (!image.isNull())
+        {
+            setImage(image);
+            m_image = std::move(image);
+        }
     }
 }
 

Pdf4QtLibWidgets/sources/pdfpagecontenteditorediteditemsettings.h

@@ -37,9 +37,14 @@ public:
     virtual ~PDFPageContentEditorEditedItemSettings() override;
 
     void loadFromElement(PDFPageContentElementEdited* editedElement);
+    void saveToElement(PDFPageContentElementEdited* editedElement);
 
 private:
+    void setImage(QImage image);
+    void selectImage();
+
     Ui::PDFPageContentEditorEditedItemSettings* ui;
+    QImage m_image;
 };
 
 }   // namespace pdf

Pdf4QtLibWidgets/sources/pdfpagecontenteditorediteditemsettings.ui

@@ -17,7 +17,7 @@
    <item>
     <widget class="QTabWidget" name="tabWidget">
      <property name="currentIndex">
-      <number>0</number>
+      <number>1</number>
      </property>
      <widget class="QWidget" name="textTab">
       <attribute name="title">
@@ -48,14 +48,87 @@
          <property name="title">
           <string>Image Content</string>
          </property>
-         <layout class="QVBoxLayout" name="verticalLayout_5">
+         <layout class="QVBoxLayout" name="verticalLayout_5" stretch="0,1,0">
+          <item>
+           <layout class="QGridLayout" name="gridLayout">
+            <item row="1" column="0">
+             <widget class="QLabel" name="imageHeightLabel">
+              <property name="text">
+               <string>Height</string>
+              </property>
+             </widget>
+            </item>
+            <item row="0" column="0">
+             <widget class="QLabel" name="imageWidthLabel">
+              <property name="text">
+               <string>Width</string>
+              </property>
+             </widget>
+            </item>
+            <item row="1" column="2">
+             <widget class="QLineEdit" name="imageHeightEdit">
+              <property name="readOnly">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item row="0" column="2">
+             <widget class="QLineEdit" name="imageWidthEdit">
+              <property name="readOnly">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+            <item row="2" column="0">
+             <widget class="QLabel" name="imageRatioLabel">
+              <property name="text">
+               <string>Ratio</string>
+              </property>
+             </widget>
+            </item>
+            <item row="2" column="2">
+             <widget class="QLineEdit" name="imageRatioEdit">
+              <property name="readOnly">
+               <bool>true</bool>
+              </property>
+             </widget>
+            </item>
+           </layout>
+          </item>
           <item>
            <widget class="QLabel" name="imageLabel">
+            <property name="autoFillBackground">
+             <bool>true</bool>
+            </property>
             <property name="text">
              <string/>
             </property>
            </widget>
           </item>
+          <item>
+           <layout class="QHBoxLayout" name="horizontalLayout">
+            <item>
+             <widget class="QPushButton" name="loadImageButton">
+              <property name="text">
+               <string>Load Image</string>
+              </property>
+             </widget>
+            </item>
+            <item>
+             <spacer name="horizontalSpacer">
+              <property name="orientation">
+               <enum>Qt::Horizontal</enum>
+              </property>
+              <property name="sizeHint" stdset="0">
+               <size>
+                <width>40</width>
+                <height>20</height>
+               </size>
+              </property>
+             </spacer>
+            </item>
+           </layout>
+          </item>
          </layout>
         </widget>
        </item>

Pdf4QtLibWidgets/sources/pdfpagecontenteditorstylesettings.cpp

@@ -282,7 +282,7 @@ bool PDFPageContentEditorStyleSettings::showEditElementStyleDialog(QWidget* pare
 
         if (dialog.exec() == QDialog::Accepted)
         {
-
+            widget->saveToElement(editedElement);
         }
     }
     else

Pdf4QtLibWidgets/sources/pdfpagecontentelements.cpp

@@ -2579,8 +2579,11 @@ void PDFPageContentElementEdited::drawPage(QPainter* painter,
         painter->translate(rect.bottomLeft());
         painter->scale(1.0, -1.0);
 
+        QRect transformedRect(0.0, 0.0, rect.width(), rect.height());
+
         QImage image = imageElement->getImage();
-        painter->drawImage(rect, image);
+        painter->fillRect(transformedRect, Qt::white);
+        painter->drawImage(transformedRect, image);
     }
 
     if (const PDFEditedPageContentElementPath* pathElement = m_element->asPath())

Pdf4QtLibWidgets/sources/pdfpagecontentelements.h

@@ -370,6 +370,7 @@ public:
     virtual QString getDescription() const override;
 
     const PDFEditedPageContentElement* getElement() const { return m_element.get(); }
+    PDFEditedPageContentElement* getElement() { return m_element.get(); }
 
 private:
     std::unique_ptr<PDFEditedPageContentElement> m_element;