add print action item

Print support of QWebEngineView is incomplete in Qt5.7. Need to figure
out another way to print documents.

Just hide the action Item.

src/resources/icons/print.svg

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Generator: Adobe Illustrator 16.2.1, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg version="1.1" id="Layer_1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" x="0px" y="0px"
+	 width="512px" height="512px" viewBox="0 0 512 512" style="enable-background:new 0 0 512 512;" xml:space="preserve">
+<g>
+	<path d="M423.8,128H384V64H128v64H88.2C60.3,128,32,144.9,32,182.6v123.8c0,38,28.3,61.6,56.2,61.6c0,0,30.4,0,39.8,0v112h5h11h224
+		h8h8V368c10.3,0,39.8,0,39.8,0c27.9,0,56.2-22.6,56.2-53.6V182.6C480,146.9,451.8,128,423.8,128z M368,464H144V288h224V464z
+		 M368,128H144V80h224V128z M416,192h-17v-16h17V192z"/>
+	<rect x="160" y="320" width="192" height="16"/>
+	<rect x="160" y="368" width="192" height="16"/>
+	<rect x="160" y="416" width="192" height="16"/>
+</g>
+</svg>

src/src.pro

@@ -4,7 +4,7 @@
 #
 #-------------------------------------------------
 
-QT       += core gui webenginewidgets webchannel network svg
+QT       += core gui webenginewidgets webchannel network svg printsupport
 
 greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
 

src/vedittab.cpp

@@ -727,3 +727,9 @@ void VEditTab::zoomWebPage(bool p_zoomIn, qreal p_step)
     }
     webPreviewer->setZoomFactor(newFactor);
 }
+
+VWebView *VEditTab::getWebViewer() const
+{
+    return webPreviewer;
+}
+

src/vedittab.h

@@ -49,6 +49,8 @@ public:
     QString getSelectedText() const;
     void clearSearchedWordHighlight();
 
+    VWebView *getWebViewer() const;
+
 public slots:
     // Enter edit mode
     void editFile();

src/vmainwindow.cpp

@@ -1,5 +1,8 @@
 #include <QtWidgets>
 #include <QList>
+#include <QPrinter>
+#include <QPrintDialog>
+#include <QPainter>
 #include "vmainwindow.h"
 #include "vdirectorytree.h"
 #include "vnote.h"
@@ -13,6 +16,8 @@
 #include "dialog/vfindreplacedialog.h"
 #include "dialog/vsettingsdialog.h"
 #include "vcaptain.h"
+#include "vedittab.h"
+#include "vwebview.h"
 
 extern VConfigManager vconfig;
 
@@ -444,24 +449,36 @@ void VMainWindow::initFileMenu()
             this, &VMainWindow::importNoteFromFile);
     m_importNoteAct->setEnabled(false);
 
+    fileMenu->addAction(m_importNoteAct);
+
+    fileMenu->addSeparator();
+
+    // Print.
+    m_printAct = new QAction(QIcon(":/resources/icons/print.svg"),
+                             tr("&Print"), this);
+    m_printAct->setToolTip(tr("Print current note"));
+    connect(m_printAct, &QAction::triggered,
+            this, &VMainWindow::printNote);
+    m_printAct->setEnabled(false);
+
     // Settings.
     QAction *settingsAct = new QAction(QIcon(":/resources/icons/settings.svg"),
-                                       tr("Settings"), this);
+                                       tr("&Settings"), this);
     settingsAct->setToolTip(tr("View and change settings for VNote"));
     connect(settingsAct, &QAction::triggered,
             this, &VMainWindow::viewSettings);
 
+    fileMenu->addAction(settingsAct);
+
+    fileMenu->addSeparator();
+
     // Exit.
-    QAction *exitAct = new QAction(tr("Exit"), this);
+    QAction *exitAct = new QAction(tr("&Exit"), this);
     exitAct->setToolTip(tr("Exit VNote"));
     exitAct->setShortcut(QKeySequence("Ctrl+Q"));
     connect(exitAct, &QAction::triggered,
             this, &VMainWindow::close);
 
-    fileMenu->addAction(m_importNoteAct);
-    fileMenu->addSeparator();
-    fileMenu->addAction(settingsAct);
-    fileMenu->addSeparator();
     fileMenu->addAction(exitAct);
 }
 
@@ -998,6 +1015,8 @@ void VMainWindow::setEditorStyle(QAction *p_action)
 void VMainWindow::updateActionStateFromTabStatusChange(const VFile *p_file,
                                                        bool p_editMode)
 {
+    m_printAct->setEnabled(p_file && p_file->getDocType() == DocType::Markdown);
+
     editNoteAct->setVisible(p_file && p_file->isModifiable() && !p_editMode);
     discardExitAct->setVisible(p_file && p_editMode);
     saveExitAct->setVisible(p_file && p_editMode);
@@ -1352,3 +1371,25 @@ void VMainWindow::shortcutHelp()
     VFile *file = vnote->getOrphanFile(docName);
     editArea->openFile(file, OpenFileMode::Read);
 }
+
+void VMainWindow::printNote()
+{
+    QPrinter printer;
+    QPrintDialog dialog(&printer, this);
+    dialog.setWindowTitle(tr("Print Note"));
+
+    V_ASSERT(m_curTab);
+
+    VWebView *webView = m_curTab->getWebViewer();
+
+    V_ASSERT(webView);
+
+    if (webView->hasSelection()) {
+        dialog.addEnabledOption(QAbstractPrintDialog::PrintSelection);
+    }
+
+    if (dialog.exec() != QDialog::Accepted) {
+        return;
+    }
+}
+

src/vmainwindow.h

@@ -80,6 +80,7 @@ private slots:
     void enableImagePreviewConstraint(bool p_checked);
     void enableImageConstraint(bool p_checked);
     void enableImageCaption(bool p_checked);
+    void printNote();
 
 protected:
     void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
@@ -153,6 +154,7 @@ private:
     QAction *discardExitAct;
     QAction *expandViewAct;
     QAction *m_importNoteAct;
+    QAction *m_printAct;
 
     QAction *m_insertImageAct;
     QAction *m_findReplaceAct;

src/vnote.qrc

@@ -104,5 +104,6 @@
         <file>utils/showdown/showdown.min.js</file>
         <file>resources/showdown.js</file>
         <file>utils/showdown/showdown-headinganchor.js</file>
+        <file>resources/icons/print.svg</file>
     </qresource>
 </RCC>