share: refactor share menu to show a qrcode

- Share menu gives now the choice to share by mail
and to show a QRCode of the RingID

* This add a dependency to libqrencode

Change-Id: I148d06c3ea1c807cd8119807ca743b08c96341de
Tuleap: #499

.gitmodules

 [submodule "winsparkle"]
 	path = winsparkle
 	url = git://github.com/vslavik/winsparkle.git
+[submodule "libqrencode"]
+	path = libqrencode
+	url = https://github.com/EckoEdc/libqrencode.git

RingWinClient.pro

@@ -124,7 +124,7 @@ FORMS    += mainwindow.ui \
     qualitydialog.ui \
     ringbutton.ui
 
-win32: LIBS += -lole32 -luuid -lshlwapi
+win32: LIBS += -lole32 -luuid -lshlwapi -lqrencode
 
 INCLUDEPATH += $${RING}/include/libringclient
 INCLUDEPATH += $${RING}/include
@@ -187,7 +187,7 @@ win32 {
 
     RUNTIMEDIR=$$[QT_INSTALL_BINS]
 
-    RUNTIME.files = $${RING}/bin/libring.dll $${RING}/bin/libringclient.dll
+    RUNTIME.files = $${RING}/bin/libring.dll $${RING}/bin/libringclient.dll  $${RING}/bin/libqrencode.dll
     RUNTIME.path = $$OUT_PWD/release
 
     LRC_TRANSLATION.files = $${RING}/share/libringclient/translations

callwidget.cpp

@@ -23,6 +23,8 @@
 
 #include <memory>
 
+#include "qrencode.h"
+
 //ERROR is defined in windows.h
 #include "utils.h"
 #undef ERROR
@@ -74,6 +76,8 @@ CallWidget::CallWidget(QWidget* parent) :
     ui->ringLogo->setPixmap(logo.scaledToHeight(100, Qt::SmoothTransformation));
     ui->ringLogo->setAlignment(Qt::AlignHCenter);
 
+    setupShareMenu();
+
     GlobalInstances::setPixmapManipulator(std::unique_ptr<Interfaces::PixbufManipulator>(new Interfaces::PixbufManipulator()));
 
     try {
@@ -186,6 +190,25 @@ CallWidget::~CallWidget()
     delete imDelegate_;
     delete pageAnim_;
     delete smartListDelegate_;
+    delete shareMenu_;
+}
+
+void
+CallWidget::setupShareMenu()
+{
+    ui->shareButton->setPopupMode(QToolButton::ToolButtonPopupMode::MenuButtonPopup);
+    shareMenu_ = new QMenu(ui->shareButton);
+    auto emailShare = new QAction(tr("Share by email"), this);
+    connect(emailShare, &QAction::triggered, [=]() {
+        Utils::InvokeMailto(tr("Contact me on Ring"), tr("My RingId is : ") + ui->ringIdLabel->text());
+    });
+    shareMenu_->addAction(emailShare);
+    auto qrcodeAction = new QAction(tr("Show QRCode"), this);
+    qrcodeAction->setCheckable(true);
+    ui->qrLabel->hide();
+    connect(qrcodeAction, &QAction::toggled, ui->qrLabel, &QLabel::setVisible);
+    shareMenu_->addAction(qrcodeAction);
+    ui->shareButton->setMenu(shareMenu_);
 }
 
 void
@@ -309,6 +332,7 @@ CallWidget::findRingAccount(QModelIndex idx1, QModelIndex idx2, QVector<int> vec
             auto username = idx.data(static_cast<int>(Account::Role::Username));
             ui->ringIdLabel->setText(username.toString());
             found = true;
+            setupQRCode();
             return;
         }
     }
@@ -317,6 +341,43 @@ CallWidget::findRingAccount(QModelIndex idx1, QModelIndex idx2, QVector<int> vec
     }
 }
 
+void CallWidget::setupQRCode()
+{
+    auto rcode = QRcode_encodeString(ui->ringIdLabel->text().toStdString().c_str(),
+                                     8,
+                                     QR_ECLEVEL_H, // Highest level of error correction
+                                     QR_MODE_8, // 8-bit data mode
+                                     1);
+    if (not rcode) {
+        qWarning() << "Failed to generate QR code: " << strerror(errno);
+        return;
+    }
+
+    auto margin = 5;
+    int qrwidth = rcode->width + margin * 2;
+    QImage result(QSize(qrwidth, qrwidth), QImage::Format_Mono);
+    QPainter painter;
+    painter.begin(&result);
+    painter.setClipRect(QRect(0, 0, qrwidth, qrwidth));
+    painter.setPen(QPen(Qt::black, 0.1, Qt::SolidLine, Qt::FlatCap, Qt::MiterJoin));
+    painter.setBrush(Qt::black);
+    painter.fillRect(QRect(0, 0, qrwidth, qrwidth), Qt::white);
+    unsigned char *row, *p;
+    p = rcode->data;
+    for(int y = 0; y < rcode->width; y++) {
+        row = (p + (y * rcode->width));
+        for(int x = 0; x < rcode->width; x++) {
+            if(*(row + x) & 0x1) {
+                painter.drawRect(margin + x, margin + y, 1, 1);
+            }
+        }
+
+    }
+    painter.end();
+    QRcode_free(rcode);
+    ui->qrLabel->setPixmap(QPixmap::fromImage(result.scaled(QSize(qrSize_, qrSize_))));
+}
+
 void
 CallWidget::findRingAccount()
 {
@@ -331,6 +392,8 @@ CallWidget::findRingAccount()
                 account->displayName() = account->alias();
             auto username = account->username();
             ui->ringIdLabel->setText(username);
+            setupQRCode();
+
             found = true;
             return;
         }
@@ -726,5 +789,5 @@ CallWidget::on_copyCMButton_clicked()
 void
 CallWidget::on_shareButton_clicked()
 {
-   Utils::InvokeMailto("Contact me on Ring", QStringLiteral("My RingId is : ") + ui->ringIdLabel->text());
+    ui->shareButton->showMenu();
 }

callwidget.h

@@ -108,8 +108,10 @@ private:
     QMetaObject::Connection imConnection_;
     QMetaObject::Connection imVisibleConnection_;
     QPropertyAnimation* pageAnim_;
+    QMenu* shareMenu_;
 
     constexpr static int animDuration_ = 200; //msecs
+    constexpr static int qrSize_ = 100;
 
 private:
     void findRingAccount();
@@ -119,5 +121,7 @@ private:
     void setupSmartListMenu();
     void slidePage(QWidget* widget, bool toRight = false);
     void callStateToView(Call* value);
+    void setupShareMenu();
+    void setupQRCode();
 };
 

callwidget.ui

@@ -751,7 +751,7 @@
                    </spacer>
                   </item>
                   <item>
-                   <widget class="QPushButton" name="shareButton">
+                   <widget class="QToolButton" name="shareButton">
                     <property name="sizePolicy">
                      <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
                       <horstretch>0</horstretch>
@@ -836,6 +836,13 @@
                   </property>
                  </widget>
                 </item>
+                <item alignment="Qt::AlignHCenter">
+                 <widget class="QLabel" name="qrLabel">
+                  <property name="text">
+                   <string>Error while generating QR Code</string>
+                  </property>
+                 </widget>
+                </item>
                 <item>
                  <spacer name="verticalSpacer_2">
                   <property name="orientation">

libqrencode @ bad61a11

+Subproject commit bad61a11b5bd78a1d52b9314fb06e8bfbcd361e5

stylesheet.css

@@ -184,19 +184,19 @@ QPushButton#hangupButton:pressed{
 }
 
 QPushButton#exitSettingsButton, QPushButton#settingsButton, QPushButton#addToContactButton,
-QPushButton#imBackButton, QPushButton#copyCMButton, QPushButton#shareButton{
+QPushButton#imBackButton, QPushButton#copyCMButton, QToolButton#shareButton{
     background-color: #414141;
     border-radius: 15px;
     border:solid 1px;
 }
 
 QPushButton#exitSettingsButton:hover, QPushButton#settingsButton:hover, QPushButton#imBackButton:hover,
-QPushButton#copyCMButton:hover, QPushButton#shareButton:hover{
+QPushButton#copyCMButton:hover, QToolButton#shareButton:hover{
     background-color: #515151;
 }
 
 QPushButton#exitSettingsButton:pressed, QPushButton#settingsButton:pressed, QToolButton#imBackButton:pressed,
-QPushButton#copyCMButton:pressed, QPushButton#shareButton:pressed{
+QPushButton#copyCMButton:pressed, QToolButton#shareButton:pressed{
     background-color: #313131;
 }
 
@@ -531,3 +531,7 @@ QSlider::sub-page:vertical{
 QSlider::add-page:vertical{
     background: #3AC0D2;
 }
+
+QToolButton::menu-button {image:none;}
+
+QToolButton::menu-arrow {image:none;}