Added copy and save of image to AspectRatioPixmapLabel

retroshare-gui/src/util/AspectRatioPixmapLabel.cpp

@@ -18,8 +18,14 @@
  *                                                                             *
  *******************************************************************************/
 
+#include <QApplication>
+#include <QClipboard>
+#include <QMenu>
+
 #include "AspectRatioPixmapLabel.h"
 #include <iostream>
+#include "util/imageutil.h"
+#include "gui/common/FilesDefs.h"
 
 AspectRatioPixmapLabel::AspectRatioPixmapLabel(QWidget *parent) :
     QLabel(parent)
@@ -31,7 +37,7 @@ AspectRatioPixmapLabel::AspectRatioPixmapLabel(QWidget *parent) :
 void AspectRatioPixmapLabel::setPixmap ( const QPixmap & p)
 {
     pix = p;
-	QLabel::setPixmap(pix);
+	QLabel::setPixmap(scaledPixmap());
 	//std::cout << "Information size: " << pix.width() << 'x' << pix.height() << std::endl;
 }
 
@@ -57,3 +63,53 @@ void AspectRatioPixmapLabel::resizeEvent(QResizeEvent * e)
 	QLabel::resizeEvent(e);
 	//std::cout << "Information resized: " << e->oldSize().width() << 'x' << e->oldSize().height() << " to " << e->size().width() << 'x' << e->size().height() << std::endl;
 }
+
+void AspectRatioPixmapLabel::addContextMenuAction(QAction *action)
+{
+	mContextMenuActions.push_back(action);
+}
+
+void AspectRatioPixmapLabel::contextMenuEvent(QContextMenuEvent *event)
+{
+	emit calculateContextMenuActions();
+
+	QMenu *contextMenu = new QMenu();
+
+	QAction *actionSaveImage = contextMenu->addAction(FilesDefs::getIconFromQtResourcePath(":/images/document_save.png"), tr("Save image"), this, SLOT(saveImage()));
+	QAction *actionCopyImage = contextMenu->addAction(tr("Copy image"), this, SLOT(copyImage()));
+
+	if (pix.isNull()) {
+		actionSaveImage->setEnabled(false);
+		actionCopyImage->setEnabled(false);
+	} else {
+		actionSaveImage->setEnabled(true);
+		actionCopyImage->setEnabled(true);
+	}
+
+	QList<QAction*>::iterator it;
+	for (it = mContextMenuActions.begin(); it != mContextMenuActions.end(); ++it) {
+		contextMenu->addAction(*it);
+	}
+
+	contextMenu->exec(event->globalPos());
+
+	delete(contextMenu);
+}
+
+void AspectRatioPixmapLabel::copyImage()
+{
+	if (pix.isNull()) {
+		return;
+	}
+
+	QApplication::clipboard()->setPixmap(pix, QClipboard::Clipboard);
+}
+
+void AspectRatioPixmapLabel::saveImage()
+{
+	if (pix.isNull()) {
+		return;
+	}
+
+	ImageUtil::saveImage(window(), pix.toImage());
+}

retroshare-gui/src/util/AspectRatioPixmapLabel.h

@@ -28,17 +28,33 @@
 class AspectRatioPixmapLabel : public QLabel
 {
     Q_OBJECT
+
 public:
 	explicit AspectRatioPixmapLabel(QWidget *parent = nullptr);
 	virtual int heightForWidth( int width ) const override;
 	virtual QSize sizeHint() const override;
     QPixmap scaledPixmap() const;
+
+	// Add QAction to context menu (action won't be deleted)
+	void addContextMenuAction(QAction *action);
+
+Q_SIGNALS:
+	void calculateContextMenuActions();
+
 public slots:
     void setPixmap ( const QPixmap & );
+
 protected:
 	void resizeEvent(QResizeEvent *event) override;
+	virtual void contextMenuEvent(QContextMenuEvent *event);
+
+private slots:
+	void copyImage();
+	void saveImage();
+
 private:
     QPixmap pix;
+	QList<QAction*> mContextMenuActions;
 };
 
 #endif // ASPECTRATIOPIXMAPLABEL_H

retroshare-gui/src/util/imageutil.cpp

@@ -115,13 +115,7 @@ void ImageUtil::extractImage(QWidget *window, QTextCursor cursor, QString file)
 		if(!image.isNull())
 		{
 			success = true;
-			if(!file.isEmpty() || misc::getSaveFileName(window, RshareSettings::LASTDIR_IMAGES, "Save Picture File", "Pictures (*.png *.xpm *.jpg)", file))
-			{
-				if(!image.save(file, nullptr, 100))
-					if(!image.save(file + ".png", nullptr, 100))
-						QMessageBox::warning(window, QApplication::translate("ImageUtil", "Save image"), QApplication::translate("ImageUtil", "Cannot save the image, invalid filename")
-											 + "\n" + file);
-			}
+			saveImage(window, image, file);
 		}
 	}
 	if(!success)
@@ -130,6 +124,26 @@ void ImageUtil::extractImage(QWidget *window, QTextCursor cursor, QString file)
 	}
 }
 
+bool ImageUtil::saveImage(QWidget *window, const QImage &image, QString file)
+{
+	bool result = false;
+
+	if (!file.isEmpty() || misc::getSaveFileName(window, RshareSettings::LASTDIR_IMAGES, QApplication::translate("ImageUtil", "Save Picture File"), QApplication::translate("ImageUtil", "Pictures (*.png *.xpm *.jpg)"), file)) {
+		if (image.save(file, nullptr, 100)) {
+			result = true;
+		} else {
+			if (image.save(file + ".png", nullptr, 100)) {
+				result = true;
+			} else {
+				QMessageBox::warning(window, QApplication::translate("ImageUtil", "Save image"), QApplication::translate("ImageUtil", "Cannot save the image, invalid filename")
+									 + "\n" + file);
+			}
+		}
+	}
+
+	return result;
+}
+
 void ImageUtil::copyImage(QWidget *window, QTextCursor cursor)
 {
 	cursor.movePosition(QTextCursor::Left, QTextCursor::MoveAnchor, 1);

retroshare-gui/src/util/imageutil.h

@@ -37,6 +37,7 @@ public:
 	static bool checkImage(const QTextEdit *edit, const QPoint &pos, QString &imageStr, QRect *cursorRectStartOut = NULL, QRect *cursorRectLeftOut = NULL, QRect *cursorRectRightOut = NULL, QRect *cursorRectEndOut = NULL);
 	static void extractImage(QWidget *window, QTextCursor cursor, QString file = "");
 	static void copyImage(QWidget *window, QTextCursor cursor);
+	static bool saveImage(QWidget *window, const QImage &image, QString file = "");
     static bool optimizeSizeHtml(QString &html, const QImage& original, QImage &optimized, int maxPixels = -1, int maxBytes = -1);
     static bool optimizeSizeBytes(QByteArray &bytearray, const QImage &original, QImage &optimized, const char *format, int maxPixels, int maxBytes);
     static bool hasAlphaContent(const QImage& image);