Can enlarge conversation images.

ComunicMessages.pro

@@ -33,7 +33,9 @@ SOURCES += \
     widgets/conversationmessagewidget.cpp \
     data/conversationmessageslist.cpp \
     helpers/imageloadhelper.cpp \
-    utils/filesutils.cpp
+    utils/filesutils.cpp \
+    widgets/remoteimagemanager.cpp \
+    widgets/clickablelabel.cpp
 
 HEADERS += \
     helpers/accounthelper.h \
@@ -69,7 +71,9 @@ HEADERS += \
     data/conversationmessageslist.h \
     helpers/imageloadhelper.h \
     utils/filesutils.h \
-    data/qlabelholder.h
+    data/qlabelholder.h \
+    widgets/remoteimagemanager.h \
+    widgets/clickablelabel.h
 
 FORMS += \
     widgets/loginwidget.ui \

widgets/clickablelabel.cpp

@@ -0,0 +1,11 @@
+#include "clickablelabel.h"
+
+ClickableLabel::ClickableLabel(QWidget *parent) : QLabel (parent)
+{
+
+}
+
+void ClickableLabel::mousePressEvent(QMouseEvent *)
+{
+    emit clicked();
+}

widgets/clickablelabel.h

@@ -0,0 +1,26 @@
+#ifndef CLICKABLELABEL_H
+#define CLICKABLELABEL_H
+
+#include <QLabel>
+
+class ClickableLabel : public QLabel
+{
+    Q_OBJECT
+
+public:
+    ClickableLabel(QWidget *parent=nullptr);
+
+signals:
+
+    /**
+     * This signal is emitted when the a click is made o the view
+     */
+    void clicked();
+
+protected:
+
+    void mousePressEvent(QMouseEvent*) override;
+
+};
+
+#endif // CLICKABLELABEL_H

widgets/conversationmessagewidget.cpp

@@ -2,7 +2,8 @@
 #include "ui_conversationmessagewidget.h"
 #include "../data/user.h"
 #include "../data/conversationmessage.h"
-#include "../helpers/imageloadhelper.h"
+#include "remoteimagemanager.h"
+#include "clickablelabel.h"
 
 ConversationMessageWidget::ConversationMessageWidget(QWidget *parent) :
     QWidget(parent),
@@ -20,15 +21,15 @@ void ConversationMessageWidget::setMessage(const ConversationMessage &message, c
 {
     ui->nameLabel->setText(user.displayName());
     ui->messageLabel->setText(message.message());
-    ImageLoadHelper::Load(ui->accountImageLabel, user.accountImage());
+    new RemoteImageManager(ui->accountImageLabel, user.accountImage(), this);
 
     //Add message image (if any)
     if(message.hasImage()){
-        QLabel *label = new QLabel;
+        ClickableLabel *label = new ClickableLabel;
         label->setParent(ui->messageContentContainer);
         label->setScaledContents(true);
         label->setMaximumSize(200, 200);
         ui->messageLayout->addWidget(label);
-        ImageLoadHelper::Load(label, message.imagePath());
+        (new RemoteImageManager(label, message.imagePath(), this))->setEnlargeable(true);
     }
 }

widgets/remoteimagemanager.cpp

@@ -0,0 +1,42 @@
+#include <QLabel>
+
+#include "remoteimagemanager.h"
+#include "clickablelabel.h"
+#include "../helpers/imageloadhelper.h"
+
+RemoteImageManager::RemoteImageManager(QLabel *label, const QString &url, QObject *parent) : QObject(parent)
+{
+    //Load remote image
+    ImageLoadHelper::Load(label, url);
+    mUrl = url;
+}
+
+RemoteImageManager::RemoteImageManager(ClickableLabel *label, const QString &url, QObject *parent) : QObject (parent)
+{
+    //Load remote image
+    ImageLoadHelper::Load(label, url);
+    mUrl = url;
+
+    connect(label, &ClickableLabel::clicked, this, &RemoteImageManager::enlarge);
+}
+
+bool RemoteImageManager::enlargeable() const
+{
+    return mEnlargeable;
+}
+
+void RemoteImageManager::setEnlargeable(bool enlargeable)
+{
+    mEnlargeable = enlargeable;
+}
+
+void RemoteImageManager::enlarge()
+{
+    if(!enlargeable())
+        return;
+
+    //Open the image in a bigger label (to improve)
+    QLabel *label = new QLabel;
+    ImageLoadHelper::Load(label, mUrl);
+    label->show();
+}

widgets/remoteimagemanager.h

@@ -0,0 +1,45 @@
+/**
+ * This object has to be used in all classes
+ * in order to manage remote image management
+ *
+ * @author Pierre HUBERT
+ */
+#ifndef REMOTEIMAGEMANAGER_H
+#define REMOTEIMAGEMANAGER_H
+
+#include <QObject>
+
+class QLabel;
+class ClickableLabel;
+
+class RemoteImageManager : public QObject
+{
+    Q_OBJECT
+public:
+    explicit RemoteImageManager(QLabel *label, const QString &url, QObject *parent); //Avoid loss of memory : force parent = nullptr);
+    explicit RemoteImageManager(ClickableLabel *label, const QString &url, QObject *parent);
+
+    /**
+     * Note that the enlargable feature is currently available only with
+     * the ClickableLabel widgets
+     */
+    bool enlargeable() const;
+    void setEnlargeable(bool enlargeable);
+
+signals:
+
+public slots:
+
+    /**
+     * This slot is triggered when we want to enlarge the image
+     */
+    void enlarge();
+
+private:
+
+    //Private URL
+    QString mUrl;
+    bool mEnlargeable = false;
+};
+
+#endif // REMOTEIMAGEMANAGER_H