Initial commitHEADmaster

12 files changed, 676 insertions, 0 deletions

diff --git a/Readme.md b/Readme.md
new file mode 100644
index 0000000..e51c6fa
--- /dev/null
+++ b/Readme.md
@@ -0,0 +1,14 @@
+# cpdf
+
+## What is this?
+A simple PDF viewer.
+
+## Building from source
+You need meson, ninja, qt5 and poppler-qt5.
+
+```sh
+mkdir build
+meson build
+ninja -C build
+```
+
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..36418ea
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,31 @@
+project('cpdf', 'cpp',
+  default_options: ['cpp_std=c++17'],
+  license: 'GPL'
+)
+
+if not get_option('debug')
+  add_project_arguments('-DQT_NO_DEBUG', language: 'cpp')
+endif
+
+mod_qt5 = import('qt5')
+dep_qt5 = dependency('qt5', modules: ['Core', 'Xml', 'Widgets'], required: true)
+
+poppler = dependency('poppler-qt5', required: true)
+
+moc = mod_qt5.preprocess(
+  moc_headers: ['src/mainwindow/mainwindow.h', 'src/contentswidget/contentswidget.h', 'src/infowidget/infowidget.h'],
+  ui_files: ['src/mainwindow/mainwindow.ui', 'src/contentswidget/contentswidget.ui', 'src/infowidget/infowidget.ui'],
+  dependencies: dep_qt5
+)
+
+cpdf = executable('cpdf', install: true, 
+  dependencies: [dep_qt5, poppler],
+  include_directories: include_directories('src'),
+  sources: ['src/main.cpp',
+    'src/mainwindow/mainwindow.cpp',
+    'src/contentswidget/contentswidget.cpp',
+    'src/infowidget/infowidget.cpp',
+    moc
+  ]
+)
+
diff --git a/src/contentswidget/contentswidget.cpp b/src/contentswidget/contentswidget.cpp
new file mode 100644
index 0000000..40ea5f9
--- /dev/null
+++ b/src/contentswidget/contentswidget.cpp
@@ -0,0 +1,61 @@
+#include "contentswidget.h"
+#include "ui_contentswidget.h"
+#include <QDomDocument>
+
+ContentsForm::ContentsForm(QWidget *parent)
+    : QWidget(parent)
+      , ui(new Ui::ContentsForm)
+{
+    ui->setupUi(this);
+}
+
+ContentsForm::~ContentsForm()
+{
+    delete ui;
+}
+
+QTreeWidgetItem *treeNode(QTreeWidgetItem *parent, const QDomNode &node)
+{
+    auto *item = new QTreeWidgetItem(parent);
+    item->setText(0, node.nodeName());
+
+    if(node.hasAttributes()) {
+        const auto attr = node.attributes();
+        for(int i = 0; i < attr.length(); ++i) {
+            const QString name = attr.item(i).nodeName();
+            const QString value = attr.item(i).nodeValue();
+
+            if(name == "Open")
+                item->setText(1, value);
+            else if(name == "Destination")
+                item->setText(2, value);
+            else
+                qDebug("Unknown attribute name %s\nattr.value=%s", qUtf8Printable(name), qUtf8Printable(value));
+        }
+    }
+
+    auto child = node.firstChild();
+    while(!child.isNull()) {
+        treeNode(item, child);
+        child = child.nextSibling();
+    }
+
+    return item;
+}
+
+void ContentsForm::setContents(QDomDocument *document)
+{
+    ui->treeWidget->clear();
+
+    if(document && !document->isNull()) {
+        auto node = document->firstChild();
+        while(!node.isNull()) {
+            auto *item = treeNode(nullptr, node);
+            ui->treeWidget->addTopLevelItem(item);
+
+            node = node.nextSibling();
+        }
+    }
+    delete document;
+}
+
diff --git a/src/contentswidget/contentswidget.h b/src/contentswidget/contentswidget.h
new file mode 100644
index 0000000..9276bf4
--- /dev/null
+++ b/src/contentswidget/contentswidget.h
@@ -0,0 +1,25 @@
+#ifndef CPDF_CONTENTSWIDGET_H
+#define CPDF_CONTENTSWIDGET_H
+
+#include <QWidget>
+
+namespace Ui {
+    class ContentsForm;
+}
+
+class QDomDocument;
+class ContentsForm : public QWidget
+{
+    Q_OBJECT
+public:
+    explicit ContentsForm(QWidget *parent = nullptr);
+    ~ContentsForm();
+
+public slots:
+    void setContents(QDomDocument *document);
+
+private:
+    Ui::ContentsForm *ui = nullptr;
+};
+
+#endif // CPDF_CONTENTSWIDGET_H
diff --git a/src/contentswidget/contentswidget.ui b/src/contentswidget/contentswidget.ui
new file mode 100644
index 0000000..8b74c36
--- /dev/null
+++ b/src/contentswidget/contentswidget.ui
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>ContentsForm</class>
+ <widget class="QWidget" name="ContentsForm">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>240</width>
+    <height>320</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Contents</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout">
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QTreeWidget" name="treeWidget">
+     <column>
+      <property name="text">
+       <string notr="true">Item</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Open</string>
+      </property>
+     </column>
+     <column>
+      <property name="text">
+       <string>Destination</string>
+      </property>
+     </column>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/infowidget/infowidget.cpp b/src/infowidget/infowidget.cpp
new file mode 100644
index 0000000..9541b29
--- /dev/null
+++ b/src/infowidget/infowidget.cpp
@@ -0,0 +1,42 @@
+#include "infowidget.h"
+#include "ui_infowidget.h"
+
+InfoForm::InfoForm(QWidget *parent)
+    : QWidget(parent)
+      , ui(new Ui::InfoForm)
+{
+    ui->setupUi(this);
+}
+
+InfoForm::~InfoForm()
+{
+    delete ui;
+}
+
+void InfoForm::setMetadata(Metadata which, const QString &value)
+{
+    switch(which) {
+        case InfoForm::Title:
+            ui->title->setText(value);
+            return;
+        case InfoForm::Subject:
+            ui->subject->setText(value);
+            return;
+        case InfoForm::Author:
+            ui->author->setText(value);
+            return;
+        case InfoForm::Creator:
+            ui->creator->setText(value);
+            return;
+        case InfoForm::CreationDate:
+            ui->creationDate->setText(value);
+            return;
+        case InfoForm::ModificationDate:
+            ui->modificationDate->setText(value);
+            return;
+        case InfoForm::Producer:
+            ui->producer->setText(value);
+            return;
+    }
+}
+
diff --git a/src/infowidget/infowidget.h b/src/infowidget/infowidget.h
new file mode 100644
index 0000000..d419901
--- /dev/null
+++ b/src/infowidget/infowidget.h
@@ -0,0 +1,35 @@
+#ifndef CPDF_INFOWIDGET_H
+#define CPDF_INFOWIDGET_H
+
+#include <QWidget>
+
+namespace Ui {
+    class InfoForm;
+}
+
+class InfoForm : public QWidget
+{
+    Q_OBJECT
+
+public:
+    enum Metadata {
+        Title,
+        Subject,
+        Author,
+        Creator,
+        CreationDate,
+        ModificationDate,
+        Producer
+    };
+
+    explicit InfoForm(QWidget *parent = nullptr);
+    ~InfoForm();
+
+public slots:
+    void setMetadata(Metadata which, const QString &value);
+
+private:
+    Ui::InfoForm *ui = nullptr;
+};
+
+#endif // CPDF_INFOWIDGET_H
diff --git a/src/infowidget/infowidget.ui b/src/infowidget/infowidget.ui
new file mode 100644
index 0000000..e22c0fa
--- /dev/null
+++ b/src/infowidget/infowidget.ui
@@ -0,0 +1,119 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>InfoForm</class>
+ <widget class="QWidget" name="InfoForm">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>320</width>
+    <height>180</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QFormLayout" name="formLayout">
+   <item row="0" column="0">
+    <widget class="QLabel" name="title_label">
+     <property name="text">
+      <string>Title</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QLabel" name="title">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="subject_label">
+     <property name="text">
+      <string>Subject</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QLabel" name="author_label">
+     <property name="text">
+      <string>Author</string>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <widget class="QLabel" name="creator_label">
+     <property name="text">
+      <string>Creator</string>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="0">
+    <widget class="QLabel" name="creationDate_label">
+     <property name="text">
+      <string>Creation date</string>
+     </property>
+    </widget>
+   </item>
+   <item row="5" column="0">
+    <widget class="QLabel" name="modificationDate_label">
+     <property name="text">
+      <string>Modification date</string>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="0">
+    <widget class="QLabel" name="producer_label">
+     <property name="text">
+      <string>Producer</string>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="1">
+    <widget class="QLabel" name="subject">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1">
+    <widget class="QLabel" name="author">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="1">
+    <widget class="QLabel" name="creator">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="4" column="1">
+    <widget class="QLabel" name="creationDate">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="5" column="1">
+    <widget class="QLabel" name="modificationDate">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+   <item row="6" column="1">
+    <widget class="QLabel" name="producer">
+     <property name="text">
+      <string/>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..494153e
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <QApplication>
+#include "mainwindow/mainwindow.h"
+#include <QCommandLineParser>
+
+inline MainWindow *openWindow(const QString &path)
+{
+    auto *window = new MainWindow;
+    window->setAttribute(Qt::WA_DeleteOnClose, true);
+
+    if(!path.isEmpty())
+        window->open(path);
+
+    window->show();
+    return window;
+}
+
+int main(int argc, char** argv)
+{
+    QApplication app(argc, argv);
+    QCoreApplication::setApplicationName(QLatin1Literal("cpdf"));
+    QCoreApplication::setApplicationVersion(QLatin1Literal("0.1.0"));
+
+    QCommandLineParser parser;
+    parser.setApplicationDescription(QLatin1Literal("Simple PDF viewer"));
+    parser.addHelpOption();
+    parser.addVersionOption();
+    parser.addPositionalArgument(QLatin1Literal("URLs"), QLatin1Literal("PDF files to open"));
+
+    parser.process(app);
+
+    {
+        const auto files = parser.positionalArguments();
+        if(files.count() == 0) {
+            openWindow(QString());
+        } else {
+            for(const auto file : files) {
+                openWindow(file);
+            }
+        }
+    }
+
+    return app.exec();
+}
diff --git a/src/mainwindow/mainwindow.cpp b/src/mainwindow/mainwindow.cpp
new file mode 100644
index 0000000..3f854da
--- /dev/null
+++ b/src/mainwindow/mainwindow.cpp
@@ -0,0 +1,103 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+#include <QFileDialog>
+#include <QDockWidget>
+#include <QLabel>
+#include <poppler-qt5.h>
+#include "infowidget/infowidget.h"
+#include "contentswidget/contentswidget.h"
+
+MainWindow::MainWindow(QWidget *parent, Qt::WindowFlags flags)
+    : QMainWindow(parent, flags)
+      , ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+
+    auto *infoDock = new QDockWidget(tr("Info"), this);
+    info = new InfoForm(infoDock);
+    infoDock->setWidget(info);
+    addDockWidget(Qt::LeftDockWidgetArea, infoDock);
+
+    auto *contentsDock = new QDockWidget(tr("Contents"), this);
+    contents = new ContentsForm(contentsDock);
+    contentsDock->setWidget(contents);
+    addDockWidget(Qt::LeftDockWidgetArea, contentsDock);
+
+    connect(ui->actionOpen, &QAction::triggered, this, [this]() {
+        const QString userPath = QFileDialog::getOpenFileName(this, tr("Select PDF to open"), QDir::homePath(), tr("PDF Files (*.pdf);;All Files (*)"));
+        if(!userPath.isEmpty())
+            this->open(userPath);
+    });
+    connect(ui->actionQuit, &QAction::triggered, qApp, &QApplication::quit);
+
+    // navigation
+    connect(ui->previous, &QToolButton::clicked, this, [this]() {
+        const int currentPage = ui->pageNumber->text().toInt();
+        this->showPage(currentPage - 1);
+    });
+    connect(ui->next, &QToolButton::clicked, this, [this]() {
+        const int currentPage = ui->pageNumber->text().toInt();
+        this->showPage(currentPage + 1);
+    });
+    connect(ui->pageNumber, &QLineEdit::textEdited, this, [this](const QString &text) {
+        const int page = text.toInt();
+        this->showPage(page);
+    });
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::open(const QString &path)
+{
+    if(path.isEmpty()) {
+        return;
+    }
+
+    if(!QFile::exists(path)) {
+        statusBar()->showMessage(tr("Couldn't open file because it doesn't exist"), 3000);
+        return;
+    }
+
+    qDebug("open path: %s", qUtf8Printable(path));
+    delete document;
+
+    document = Poppler::Document::load(path);
+    if(!document || document->isLocked()) {
+        statusBar()->showMessage(tr("Couldn't parse file"), 3000);
+        return;
+    }
+
+    info->setMetadata(InfoForm::Title, document->title());
+    info->setMetadata(InfoForm::Subject, document->subject());
+    info->setMetadata(InfoForm::Author, document->author());
+    info->setMetadata(InfoForm::Creator, document->creator());
+    info->setMetadata(InfoForm::CreationDate, document->creationDate().toString(Qt::RFC2822Date));
+    info->setMetadata(InfoForm::ModificationDate, document->modificationDate().toString(Qt::RFC2822Date));
+    info->setMetadata(InfoForm::Producer, document->producer());
+
+    contents->setContents(document->toc());
+
+    showPage(0);
+
+    statusBar()->showMessage(tr("Opened file %1").arg(path), 3000);
+}
+
+void MainWindow::showPage(int pageNumber)
+{
+    auto *page = document->page(pageNumber);
+    if(page == nullptr)
+        return;
+
+    ui->pageNumber->setText(QString::number(pageNumber));
+
+    const auto image = page->renderToImage();
+    auto *label = new QLabel(this);
+    label->setPixmap(QPixmap::fromImage(image));
+
+    ui->scrollArea->setWidget(label);
+
+    delete page;
+}
diff --git a/src/mainwindow/mainwindow.h b/src/mainwindow/mainwindow.h
new file mode 100644
index 0000000..14ceb49
--- /dev/null
+++ b/src/mainwindow/mainwindow.h
@@ -0,0 +1,35 @@
+#ifndef CPDF_MAINWINDOW_H
+#define CPDF_MAINWINDOW_H
+
+#include <QMainWindow>
+
+namespace Poppler {
+    class Document;
+}
+
+namespace Ui {
+    class MainWindow;
+}
+
+class InfoForm;
+class ContentsForm;
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    explicit MainWindow(QWidget *parent = nullptr, Qt::WindowFlags flags = Qt::WindowFlags());
+    ~MainWindow();
+
+public slots:
+    void open(const QString &path);
+    void showPage(int pageNumber);
+
+private:
+    Ui::MainWindow *ui = nullptr;
+    InfoForm *info = nullptr;
+    ContentsForm *contents = nullptr;
+    Poppler::Document *document = nullptr;
+};
+
+#endif // CPDF_MAINWINDOW_H
diff --git a/src/mainwindow/mainwindow.ui b/src/mainwindow/mainwindow.ui
new file mode 100644
index 0000000..6c37ddf
--- /dev/null
+++ b/src/mainwindow/mainwindow.ui
@@ -0,0 +1,115 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>640</width>
+    <height>480</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>cpdf</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <item>
+       <widget class="QToolButton" name="previous">
+        <property name="text">
+         <string>Previous</string>
+        </property>
+        <property name="shortcut">
+         <string>Ctrl+Left</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QToolButton" name="next">
+        <property name="text">
+         <string>Next</string>
+        </property>
+        <property name="shortcut">
+         <string>Ctrl+Right</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QLineEdit" name="pageNumber"/>
+      </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>
+    <item>
+     <widget class="QScrollArea" name="scrollArea">
+      <property name="widgetResizable">
+       <bool>true</bool>
+      </property>
+      <widget class="QWidget" name="scrollAreaWidgetContents">
+       <property name="geometry">
+        <rect>
+         <x>0</x>
+         <y>0</y>
+         <width>620</width>
+         <height>380</height>
+        </rect>
+       </property>
+      </widget>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>640</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menuFile">
+    <property name="title">
+     <string>File</string>
+    </property>
+    <addaction name="actionOpen"/>
+    <addaction name="actionQuit"/>
+   </widget>
+   <addaction name="menuFile"/>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <action name="actionOpen">
+   <property name="text">
+    <string>Open</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+O</string>
+   </property>
+  </action>
+  <action name="actionQuit">
+   <property name="text">
+    <string>Quit</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Q</string>
+   </property>
+  </action>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>