Signature plugin: Appearance settings

Pdf4QtLib/Pdf4QtLib.pro

@@ -71,6 +71,7 @@ SOURCES += \
     sources/pdfoptimizer.cpp \
     sources/pdfoptionalcontent.cpp \
     sources/pdfoutline.cpp \
+    sources/pdfpagecontenteditorstylesettings.cpp \
     sources/pdfpagecontenteditortools.cpp \
     sources/pdfpagecontenteditorwidget.cpp \
     sources/pdfpagecontentelements.cpp \
@@ -150,6 +151,7 @@ HEADERS += \
     sources/pdfoptimizer.h \
     sources/pdfoptionalcontent.h \
     sources/pdfoutline.h \
+    sources/pdfpagecontenteditorstylesettings.h \
     sources/pdfpagecontenteditortools.h \
     sources/pdfpagecontenteditorwidget.h \
     sources/pdfpagecontentelements.h \
@@ -201,6 +203,7 @@ HEADERS += \
     sources/pdfimage.h
 
 FORMS += \
+    sources/pdfpagecontenteditorstylesettings.ui \
     sources/pdfpagecontenteditorwidget.ui \
     sources/pdfrenderingerrorswidget.ui \
     sources/pdfselectpagesdialog.ui

Pdf4QtLib/sources/pdfpagecontenteditorstylesettings.cpp

@@ -0,0 +1,298 @@
+//    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 "pdfpagecontenteditorstylesettings.h"
+#include "ui_pdfpagecontenteditorstylesettings.h"
+
+#include "pdfwidgetutils.h"
+#include "pdfpagecontentelements.h"
+
+#include <QFontDialog>
+#include <QColorDialog>
+
+namespace pdf
+{
+
+PDFPageContentEditorStyleSettings::PDFPageContentEditorStyleSettings(QWidget* parent) :
+    QWidget(parent),
+    ui(new Ui::PDFPageContentEditorStyleSettings)
+{
+    ui->setupUi(this);
+
+    for (QString colorName : QColor::colorNames())
+    {
+        QColor color(colorName);
+        QIcon icon = getIconForColor(color);
+
+        ui->penColorCombo->addItem(icon, colorName, color);
+        ui->brushColorCombo->addItem(icon, colorName, color);
+    }
+
+    ui->penStyleCombo->addItem(tr("None"), int(Qt::NoPen));
+    ui->penStyleCombo->addItem(tr("Solid"), int(Qt::SolidLine));
+    ui->penStyleCombo->addItem(tr("Dashed"), int(Qt::DashLine));
+    ui->penStyleCombo->addItem(tr("Dotted"), int(Qt::DotLine));
+    ui->penStyleCombo->addItem(tr("Dash-dot"), int(Qt::DashDotLine));
+    ui->penStyleCombo->addItem(tr("Dash-dot-dot"), int(Qt::DashDotDotLine));
+
+    connect(ui->fontComboBox, &QFontComboBox::currentFontChanged, this, &PDFPageContentEditorStyleSettings::onFontChanged);
+    connect(ui->selectPenColorButton, &QToolButton::clicked, this, &PDFPageContentEditorStyleSettings::onSelectPenColorButtonClicked);
+    connect(ui->selectBrushColorButton, &QToolButton::clicked, this, &PDFPageContentEditorStyleSettings::onSelectBrushColorButtonClicked);
+    connect(ui->selectFontButton, &QToolButton::clicked, this, &PDFPageContentEditorStyleSettings::onSelectFontButtonClicked);
+
+    m_alignmentMapper.setMapping(ui->al11Button, int(Qt::AlignLeft | Qt::AlignTop));
+    m_alignmentMapper.setMapping(ui->al12Button, int(Qt::AlignHCenter | Qt::AlignTop));
+    m_alignmentMapper.setMapping(ui->al13Button, int(Qt::AlignRight | Qt::AlignTop));
+    m_alignmentMapper.setMapping(ui->al21Button, int(Qt::AlignLeft | Qt::AlignVCenter));
+    m_alignmentMapper.setMapping(ui->al22Button, int(Qt::AlignCenter));
+    m_alignmentMapper.setMapping(ui->al23Button, int(Qt::AlignRight | Qt::AlignVCenter));
+    m_alignmentMapper.setMapping(ui->al31Button, int(Qt::AlignLeft | Qt::AlignBottom));
+    m_alignmentMapper.setMapping(ui->al32Button, int(Qt::AlignHCenter | Qt::AlignBottom));
+    m_alignmentMapper.setMapping(ui->al33Button, int(Qt::AlignRight | Qt::AlignBottom));
+
+    loadFromElement(nullptr, true);
+}
+
+PDFPageContentEditorStyleSettings::~PDFPageContentEditorStyleSettings()
+{
+    delete ui;
+}
+
+void PDFPageContentEditorStyleSettings::loadFromElement(const PDFPageContentElement* element, bool forceUpdate)
+{
+    const PDFPageContentStyledElement* styledElement = dynamic_cast<const PDFPageContentStyledElement*>(element);
+    const PDFPageContentElementTextBox* textElement = dynamic_cast<const PDFPageContentElementTextBox*>(element);
+
+    StyleFeatures features = None;
+
+    if (styledElement)
+    {
+        features.setFlag(Pen);
+        features.setFlag(PenColor);
+        features.setFlag(Brush);
+    }
+
+    if (textElement)
+    {
+        features.setFlag(PenColor);
+        features.setFlag(Text);
+    }
+
+    const bool hasPen = features.testFlag(Pen);
+    const bool hasPenColor = features.testFlag(PenColor);
+    const bool hasBrush = features.testFlag(Brush);
+    const bool hasText = features.testFlag(Text);
+
+    ui->penWidthEdit->setEnabled(hasPen);
+    ui->penWidthLabel->setEnabled(hasPen);
+
+    ui->penStyleCombo->setEnabled(hasPen);
+    ui->penStyleLabel->setEnabled(hasPen);
+
+    ui->penColorCombo->setEnabled(hasPenColor);
+    ui->penColorLabel->setEnabled(hasPenColor);
+    ui->selectPenColorButton->setEnabled(hasPenColor);
+
+    ui->brushColorCombo->setEnabled(hasBrush);
+    ui->brushColorLabel->setEnabled(hasBrush);
+    ui->selectBrushColorButton->setEnabled(hasBrush);
+
+    ui->fontComboBox->setEnabled(hasText);
+    ui->fontLabel->setEnabled(hasText);
+    ui->selectFontButton->setEnabled(hasText);
+
+    for (QRadioButton* radioButton : findChildren<QRadioButton*>())
+    {
+        radioButton->setEnabled(hasText);
+    }
+    ui->textAlignmentLabel->setEnabled(hasText);
+
+    QPen pen(Qt::SolidLine);
+    QBrush brush(Qt::transparent);
+    QFont font = QGuiApplication::font();
+    Qt::Alignment alignment = Qt::AlignCenter;
+
+    if (styledElement)
+    {
+        pen = styledElement->getPen();
+        brush = styledElement->getBrush();
+    }
+
+    if (textElement)
+    {
+        font = textElement->getFont();
+        alignment = textElement->getAlignment();
+    }
+
+    setPen(pen, forceUpdate);
+    setBrush(brush, forceUpdate);
+    setFont(font, forceUpdate);
+    setFontAlignment(alignment, forceUpdate);
+}
+
+void PDFPageContentEditorStyleSettings::setPen(const QPen& pen, bool forceUpdate)
+{
+    if (m_pen != pen || forceUpdate)
+    {
+        const bool oldBlockSignals = blockSignals(true);
+
+        m_pen = pen;
+        ui->penWidthEdit->setValue(pen.widthF());
+        ui->penStyleCombo->setCurrentIndex(ui->penStyleCombo->findData(int(pen.style())));
+        setColorToComboBox(ui->penColorCombo, pen.color());
+
+        blockSignals(oldBlockSignals);
+        emit penChanged(m_pen);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::setBrush(const QBrush& brush, bool forceUpdate)
+{
+    if (m_brush != brush || forceUpdate)
+    {
+        const bool oldBlockSignals = blockSignals(true);
+
+        m_brush = brush;
+        setColorToComboBox(ui->brushColorCombo, brush.color());
+
+        blockSignals(oldBlockSignals);
+        emit brushChanged(m_brush);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::setFont(const QFont& font, bool forceUpdate)
+{
+    if (m_font != font || forceUpdate)
+    {
+        const bool oldBlockSignals = blockSignals(true);
+
+        m_font = font;
+        ui->fontComboBox->setCurrentFont(m_font);
+
+        blockSignals(oldBlockSignals);
+        emit fontChanged(m_font);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::setFontAlignment(Qt::Alignment alignment, bool forceUpdate)
+{
+    if (m_alignment != alignment || forceUpdate)
+    {
+        const bool oldBlockSignals = blockSignals(true);
+
+        for (QRadioButton* radioButton : findChildren<QRadioButton*>())
+        {
+            radioButton->setChecked(false);
+        }
+
+        QRadioButton* radioButton = qobject_cast<QRadioButton*>(m_alignmentMapper.mapping(int(alignment)));
+        radioButton->setChecked(true);
+
+        blockSignals(oldBlockSignals);
+        emit alignmentChanged(m_alignment);
+    }
+}
+
+QIcon PDFPageContentEditorStyleSettings::getIconForColor(QColor color) const
+{
+    QIcon icon;
+
+    QSize iconSize = PDFWidgetUtils::scaleDPI(this, QSize(16, 16));
+
+    QPixmap pixmap(iconSize.width(), iconSize.height());
+    pixmap.fill(color);
+    icon.addPixmap(pixmap);
+
+    return icon;
+}
+
+void PDFPageContentEditorStyleSettings::setColorToComboBox(QComboBox* comboBox, QColor color)
+{
+    if (!color.isValid())
+    {
+        return;
+    }
+
+    QString name = color.name(QColor::HexArgb);
+
+    const int index = comboBox->findText(name);
+    if (index != -1)
+    {
+        comboBox->setCurrentIndex(index);
+    }
+    else
+    {
+        comboBox->addItem(getIconForColor(color), name, color);
+        comboBox->setCurrentIndex(comboBox->count() - 1);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::onSelectFontButtonClicked()
+{
+    bool ok = false;
+    QFont font = QFontDialog::getFont(&ok, m_font, this, tr("Select Font"));
+
+    if (ok && m_font != font)
+    {
+        m_font = font;
+        ui->fontComboBox->setCurrentFont(m_font);
+        emit fontChanged(m_font);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::setPenColor(QColor color)
+{
+    if (color.isValid() && m_pen.color() != color)
+    {
+        m_pen.setColor(color);
+        setColorToComboBox(ui->penColorCombo, color);
+        emit penChanged(m_pen);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::onSelectPenColorButtonClicked()
+{
+    QColor color = QColorDialog::getColor(m_pen.color(), this, tr("Select Color for Pen"), QColorDialog::ShowAlphaChannel);
+    setPenColor(color);
+}
+
+void PDFPageContentEditorStyleSettings::setBrushColor(QColor color)
+{
+    if (color.isValid() && m_brush.color() != color)
+    {
+        m_brush.setColor(color);
+        setColorToComboBox(ui->brushColorCombo, color);
+        emit brushChanged(m_brush);
+    }
+}
+
+void PDFPageContentEditorStyleSettings::onSelectBrushColorButtonClicked()
+{
+    QColor color = QColorDialog::getColor(m_pen.color(), this, tr("Select Color for Brush"), QColorDialog::ShowAlphaChannel);
+    setBrushColor(color);
+}
+
+void PDFPageContentEditorStyleSettings::onFontChanged(const QFont& font)
+{
+    if (m_font != font)
+    {
+        m_font = font;
+        emit fontChanged(m_font);
+    }
+}
+
+}   // namespace pdf

Pdf4QtLib/sources/pdfpagecontenteditorstylesettings.h

@@ -0,0 +1,99 @@
+//    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/>.
+
+#ifndef PDFPAGECONTENTEDITORSTYLESETTINGS_H
+#define PDFPAGECONTENTEDITORSTYLESETTINGS_H
+
+#include "pdfglobal.h"
+
+#include <QPen>
+#include <QIcon>
+#include <QFont>
+#include <QBrush>
+#include <QWidget>
+#include <QSignalMapper>
+
+namespace Ui
+{
+class PDFPageContentEditorStyleSettings;
+}
+
+class QComboBox;
+
+namespace pdf
+{
+class PDFPageContentElement;
+
+class PDFPageContentEditorStyleSettings : public QWidget
+{
+    Q_OBJECT
+
+public:
+
+    enum StyleFeature
+    {
+        None = 0,
+        Pen = 1 << 0,
+        PenColor = 1 << 1,
+        Brush = 1 << 2,
+        Text = 1 << 3
+    };
+    Q_DECLARE_FLAGS(StyleFeatures, StyleFeature)
+
+    explicit PDFPageContentEditorStyleSettings(QWidget* parent);
+    virtual ~PDFPageContentEditorStyleSettings() override;
+
+    /// Loads data from element, element can be nullptr
+    /// \param element Element
+    void loadFromElement(const PDFPageContentElement* element, bool forceUpdate);
+
+    void setPen(const QPen& pen, bool forceUpdate);
+    void setBrush(const QBrush& brush, bool forceUpdate);
+    void setFont(const QFont& font, bool forceUpdate);
+    void setFontAlignment(Qt::Alignment alignment, bool forceUpdate);
+
+signals:
+    void penChanged(const QPen& pen);
+    void brushChanged(const QBrush& brush);
+    void fontChanged(const QFont& font);
+    void alignmentChanged(Qt::Alignment alignment);
+
+private slots:
+    void onSelectFontButtonClicked();
+    void onSelectPenColorButtonClicked();
+    void onSelectBrushColorButtonClicked();
+
+private:
+    Ui::PDFPageContentEditorStyleSettings* ui;
+
+    void onFontChanged(const QFont& font);
+    void setColorToComboBox(QComboBox* comboBox, QColor color);
+    QIcon getIconForColor(QColor color) const;
+
+    void setPenColor(QColor color);
+    void setBrushColor(QColor color);
+
+    QPen m_pen;
+    QBrush m_brush;
+    QFont m_font;
+    Qt::Alignment m_alignment = Qt::AlignCenter;
+    QSignalMapper m_alignmentMapper;
+};
+
+}   // namespace pdf
+
+#endif // PDFPAGECONTENTEDITORSTYLESETTINGS_H

Pdf4QtLib/sources/pdfpagecontenteditorstylesettings.ui

@@ -0,0 +1,203 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>PDFPageContentEditorStyleSettings</class>
+ <widget class="QWidget" name="PDFPageContentEditorStyleSettings">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>344</width>
+    <height>304</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Style Settings</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="2" column="0">
+    <widget class="QLabel" name="penStyleLabel">
+     <property name="text">
+      <string>Pen Style</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="penWidthLabel">
+     <property name="text">
+      <string>Pen Width</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="QComboBox" name="brushColorCombo">
+     <property name="editable">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="brushColorLabel">
+     <property name="text">
+      <string>Brush Color</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0">
+    <widget class="QLabel" name="fontLabel">
+     <property name="text">
+      <string>Font</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="1">
+    <widget class="QFontComboBox" name="fontComboBox"/>
+   </item>
+   <item row="6" column="0">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeType">
+      <enum>QSizePolicy::MinimumExpanding</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+   <item row="5" column="0">
+    <widget class="QLabel" name="textAlignmentLabel">
+     <property name="text">
+      <string>Text Alignment</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QComboBox" name="penColorCombo">
+     <property name="editable">
+      <bool>true</bool>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="penColorLabel">
+     <property name="text">
+      <string>Pen Color</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="2">
+    <widget class="QToolButton" name="selectFontButton">
+     <property name="text">
+      <string>...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="2">
+    <widget class="QToolButton" name="selectBrushColorButton">
+     <property name="text">
+      <string>...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="2">
+    <widget class="QToolButton" name="selectPenColorButton">
+     <property name="text">
+      <string>...</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1" colspan="2">
+    <widget class="QDoubleSpinBox" name="penWidthEdit"/>
+   </item>
+   <item row="2" column="1" colspan="2">
+    <widget class="QComboBox" name="penStyleCombo"/>
+   </item>
+   <item row="5" column="1" colspan="2">
+    <layout class="QGridLayout" name="textAlignmentLayout">
+     <item row="1" column="0">
+      <widget class="QRadioButton" name="al21Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QRadioButton" name="al13Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="1">
+      <widget class="QRadioButton" name="al32Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QRadioButton" name="al22Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="2">
+      <widget class="QRadioButton" name="al33Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="0">
+      <widget class="QRadioButton" name="al31Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2">
+      <widget class="QRadioButton" name="al23Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QRadioButton" name="al11Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QRadioButton" name="al12Button">
+       <property name="text">
+        <string/>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="3">
+      <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>
+ <resources/>
+ <connections/>
+</ui>

Pdf4QtLib/sources/pdfpagecontenteditorwidget.cpp

@@ -16,6 +16,7 @@
 //    along with PDF4QT. If not, see <https://www.gnu.org/licenses/>.
 
 #include "pdfpagecontenteditorwidget.h"
+#include "pdfpagecontenteditorstylesettings.h"
 #include "ui_pdfpagecontenteditorwidget.h"
 #include "pdfwidgetutils.h"
 #include "pdfpagecontentelements.h"

Pdf4QtLib/sources/pdfpagecontenteditorwidget.ui

@@ -17,7 +17,7 @@
    <string>Content editor</string>
   </property>
   <widget class="QWidget" name="dockWidgetContents">
-   <layout class="QVBoxLayout" name="verticalLayout">
+   <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,0,0,1">
     <item>
      <widget class="QGroupBox" name="toolGroupBox">
       <property name="title">
@@ -161,6 +161,11 @@
       <property name="title">
        <string>Appearance</string>
       </property>
+      <layout class="QVBoxLayout" name="appearanceLayout">
+       <item>
+        <widget class="pdf::PDFPageContentEditorStyleSettings" name="widget" native="true"/>
+       </item>
+      </layout>
      </widget>
     </item>
     <item>
@@ -182,6 +187,14 @@
    </layout>
   </widget>
  </widget>
+ <customwidgets>
+  <customwidget>
+   <class>pdf::PDFPageContentEditorStyleSettings</class>
+   <extends>QWidget</extends>
+   <header>pdfpagecontenteditorstylesettings.h</header>
+   <container>1</container>
+  </customwidget>
+ </customwidgets>
  <resources/>
  <connections/>
 </ui>