feat: support basic image copy and paste

2020-01-01 14:51:46 +08:00 · 2020-01-01 14:51:46 +08:00 · c51a603ec9
commit c51a603ec9
parent 4a5fe4c289
8 changed files with 183 additions and 32 deletions
--- a/graphicsscene.cpp
+++ b/graphicsscene.cpp
@ -8,6 +8,7 @@
 #include <QGraphicsSvgItem>
 #include <QMovie>
 #include <QLabel>
+#include <QPainter>

 GraphicsScene::GraphicsScene(QObject *parent)
    : QGraphicsScene(parent)
@ -58,3 +59,12 @@ void GraphicsScene::showGif(const QString &filepath)
                               QPen(Qt::transparent));
    this->setSceneRect(m_theThing->boundingRect());
 }
+
+QPixmap GraphicsScene::renderToPixmap()
+{
+    QPixmap pixmap(sceneRect().toRect().size());
+    QPainter p(&pixmap);
+    render(&p, sceneRect());
+
+    return pixmap;
+}
--- a/graphicsscene.h
+++ b/graphicsscene.h
@ -15,6 +15,8 @@ public:
    void showSvg(const QString &filepath);
    void showGif(const QString &filepath);

+    QPixmap renderToPixmap();
+
 private:
    QGraphicsItem * m_theThing;
 };
--- a/graphicsview.cpp
+++ b/graphicsview.cpp
@ -59,6 +59,13 @@ void GraphicsView::showImage(const QPixmap &pixmap)
    checkAndDoFitInView();
 }

+void GraphicsView::showImage(const QImage &image)
+{
+    resetTransform();
+    scene()->showImage(QPixmap::fromImage(image));
+    checkAndDoFitInView();
+}
+
 void GraphicsView::showText(const QString &text)
 {
    resetTransform();
--- a/graphicsview.h
+++ b/graphicsview.h
@ -14,6 +14,7 @@ public:
    void showFileFromUrl(const QUrl &url, bool requestGallery = false);

    void showImage(const QPixmap &pixmap);
+    void showImage(const QImage &image);
    void showText(const QString &text);
    void showSvg(const QString &filepath);
    void showGif(const QString &filepath);
--- a/languages/PineapplePictures.ts
+++ b/languages/PineapplePictures.ts
@ -4,7 +4,7 @@
 <context>
    <name>GraphicsScene</name>
    <message>
-        <location filename="../graphicsscene.cpp" line="15"/>
+        <location filename="../graphicsscene.cpp" line="16"/>
        <source>Drag image here</source>
        <translation type="unfinished"></translation>
    </message>
@ -12,22 +12,22 @@
 <context>
    <name>GraphicsView</name>
    <message>
-        <location filename="../graphicsview.cpp" line="32"/>
+        <location filename="../graphicsview.cpp" line="239"/>
        <source>File url list is empty</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="46"/>
+        <location filename="../graphicsview.cpp" line="44"/>
        <source>File is not a valid image</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="238"/>
+        <location filename="../graphicsview.cpp" line="247"/>
        <source>Image data is invalid</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="245"/>
+        <location filename="../graphicsview.cpp" line="254"/>
        <source>Not supported mimedata: %1</source>
        <translation type="unfinished"></translation>
    </message>
@ -35,44 +35,74 @@
 <context>
    <name>MainWindow</name>
    <message>
-        <location filename="../mainwindow.cpp" line="229"/>
-        <location filename="../mainwindow.cpp" line="248"/>
+        <location filename="../mainwindow.cpp" line="143"/>
+        <source>File url list is empty</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="322"/>
+        <source>&amp;Copy</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="343"/>
+        <source>Copy &amp;Pixmap</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="348"/>
+        <source>Copy &amp;File Path</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="358"/>
+        <source>&amp;Paste Image</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="363"/>
+        <source>&amp;Paste Image File</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="368"/>
+        <location filename="../mainwindow.cpp" line="387"/>
        <source>Stay on top</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="235"/>
-        <location filename="../mainwindow.cpp" line="249"/>
+        <location filename="../mainwindow.cpp" line="374"/>
+        <location filename="../mainwindow.cpp" line="388"/>
        <source>Protected mode</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="241"/>
+        <location filename="../mainwindow.cpp" line="380"/>
        <source>Help</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="244"/>
+        <location filename="../mainwindow.cpp" line="383"/>
        <source>Launch application with image file path as argument to load the file.</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="245"/>
+        <location filename="../mainwindow.cpp" line="384"/>
        <source>Drag and drop image file onto the window is also supported.</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="247"/>
+        <location filename="../mainwindow.cpp" line="386"/>
        <source>Context menu option explanation:</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="248"/>
+        <location filename="../mainwindow.cpp" line="387"/>
        <source>Make window stay on top of all other windows.</source>
        <translation type="unfinished"></translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="249"/>
+        <location filename="../mainwindow.cpp" line="388"/>
        <source>Avoid close window accidentally. (eg. by double clicking the window)</source>
        <translation type="unfinished"></translation>
    </message>
--- a/languages/PineapplePictures_zh_CN.ts
+++ b/languages/PineapplePictures_zh_CN.ts
@ -4,7 +4,7 @@
 <context>
    <name>GraphicsScene</name>
    <message>
-        <location filename="../graphicsscene.cpp" line="15"/>
+        <location filename="../graphicsscene.cpp" line="16"/>
        <source>Drag image here</source>
        <translation>拖放图片至此</translation>
    </message>
@ -12,22 +12,22 @@
 <context>
    <name>GraphicsView</name>
    <message>
-        <location filename="../graphicsview.cpp" line="32"/>
+        <location filename="../graphicsview.cpp" line="239"/>
        <source>File url list is empty</source>
        <translation>文件 URL 列表为空</translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="46"/>
+        <location filename="../graphicsview.cpp" line="44"/>
        <source>File is not a valid image</source>
        <translation>文件不是有效的图片文件</translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="238"/>
+        <location filename="../graphicsview.cpp" line="247"/>
        <source>Image data is invalid</source>
        <translation>图片数据无效</translation>
    </message>
    <message>
-        <location filename="../graphicsview.cpp" line="245"/>
+        <location filename="../graphicsview.cpp" line="254"/>
        <source>Not supported mimedata: %1</source>
        <translation>不受支持的 MimeData 格式：%1</translation>
    </message>
@ -35,44 +35,74 @@
 <context>
    <name>MainWindow</name>
    <message>
-        <location filename="../mainwindow.cpp" line="229"/>
-        <location filename="../mainwindow.cpp" line="248"/>
+        <location filename="../mainwindow.cpp" line="143"/>
+        <source>File url list is empty</source>
+        <translation>文件 URL 列表为空</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="322"/>
+        <source>&amp;Copy</source>
+        <translation>复制(&amp;C)</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="343"/>
+        <source>Copy &amp;Pixmap</source>
+        <translation>复制位图(&amp;P)</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="348"/>
+        <source>Copy &amp;File Path</source>
+        <translation>复制文件路径(&amp;F)</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="358"/>
+        <source>&amp;Paste Image</source>
+        <translation>粘贴图像(&amp;P)</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="363"/>
+        <source>&amp;Paste Image File</source>
+        <translation>粘贴图像文件(&amp;P)</translation>
+    </message>
+    <message>
+        <location filename="../mainwindow.cpp" line="368"/>
+        <location filename="../mainwindow.cpp" line="387"/>
        <source>Stay on top</source>
        <translation>总在最前</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="235"/>
-        <location filename="../mainwindow.cpp" line="249"/>
+        <location filename="../mainwindow.cpp" line="374"/>
+        <location filename="../mainwindow.cpp" line="388"/>
        <source>Protected mode</source>
        <translation>保护模式</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="241"/>
+        <location filename="../mainwindow.cpp" line="380"/>
        <source>Help</source>
        <translation>帮助</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="244"/>
+        <location filename="../mainwindow.cpp" line="383"/>
        <source>Launch application with image file path as argument to load the file.</source>
        <translation>以图片文件的路径作为参数运行程序即可直接打开图片文件。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="245"/>
+        <location filename="../mainwindow.cpp" line="384"/>
        <source>Drag and drop image file onto the window is also supported.</source>
        <translation>也支持拖放图片文件到窗口内来加载图片。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="247"/>
+        <location filename="../mainwindow.cpp" line="386"/>
        <source>Context menu option explanation:</source>
        <translation>菜单项说明：</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="248"/>
+        <location filename="../mainwindow.cpp" line="387"/>
        <source>Make window stay on top of all other windows.</source>
        <translation>使窗口始终至于其它非置顶窗口上方。</translation>
    </message>
    <message>
-        <location filename="../mainwindow.cpp" line="249"/>
+        <location filename="../mainwindow.cpp" line="388"/>
        <source>Avoid close window accidentally. (eg. by double clicking the window)</source>
        <translation>避免窗口意外关闭。（如：不小心双击了窗口触发了关闭窗口行为）</translation>
    </message>
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@ -17,6 +17,8 @@
 #include <QShortcut>
 #include <QDir>
 #include <QCollator>
+#include <QClipboard>
+#include <QMimeData>

 #ifdef _WIN32
 #include <windows.h>
@ -173,12 +175,22 @@ void MainWindow::adjustWindowSizeBySceneRect()
    }
 }

+// can be empty if it is NOT from a local file.
+QUrl MainWindow::currentImageFileUrl() const
+{
+    if (m_currentFileIndex != -1) {
+        return m_files.value(m_currentFileIndex);
+    }
+
+    return QUrl();
+}
+
 void MainWindow::loadGalleryBySingleLocalFile(const QString &path)
 {
    QFileInfo info(path);
    QDir dir(info.path());
    QString currentFileName = info.fileName();
-    QStringList entryList = dir.entryList({"*.jpg", "*.jpeg", "*.png", "*.gif", "*.svg"},
+    QStringList entryList = dir.entryList({"*.jpg", "*.jpeg", "*.png", "*.gif", "*.svg", "*.bmp"},
                                          QDir::Files | QDir::NoSymLinks, QDir::NoSort);

    QCollator collator;
@ -197,7 +209,7 @@ void MainWindow::loadGalleryBySingleLocalFile(const QString &path)
        }
    }

-    qDebug() << m_files << m_currentFileIndex;
+//    qDebug() << m_files << m_currentFileIndex;
 }

 void MainWindow::galleryPrev()
@ -307,6 +319,52 @@ void MainWindow::resizeEvent(QResizeEvent *event)
 void MainWindow::contextMenuEvent(QContextMenuEvent *event)
 {
    QMenu * menu = new QMenu;
+    QMenu * copyMenu = new QMenu(tr("&Copy"));
+    QUrl currentFileUrl = currentImageFileUrl();
+    QImage clipboardImage;
+    QUrl clipboardFileUrl;
+
+    const QMimeData * clipboardData = QApplication::clipboard()->mimeData();
+    if (clipboardData->hasImage()) {
+        QVariant imageVariant(clipboardData->imageData());
+        if (imageVariant.isValid()) {
+            clipboardImage = qvariant_cast<QImage>(imageVariant);
+        }
+    } else if (clipboardData->hasText()) {
+        QString clipboardText(clipboardData->text());
+        if (clipboardText.startsWith("PICTURE:")) {
+            QString maybeFilename(clipboardText.mid(8));
+            if (QFile::exists(maybeFilename)) {
+                clipboardFileUrl = QUrl::fromLocalFile(maybeFilename);
+            }
+        }
+    }
+
+    QAction * copyPixmap = new QAction(tr("Copy &Pixmap"));
+    connect(copyPixmap, &QAction::triggered, this, [ = ](){
+        QClipboard *cb = QApplication::clipboard();
+        cb->setPixmap(m_graphicsView->scene()->renderToPixmap());
+    });
+    QAction * copyFilePath = new QAction(tr("Copy &File Path"));
+    connect(copyFilePath, &QAction::triggered, this, [ = ](){
+        QClipboard *cb = QApplication::clipboard();
+        cb->setText(currentFileUrl.toLocalFile());
+    });
+    copyMenu->addAction(copyPixmap);
+    if (currentFileUrl.isValid()) {
+        copyMenu->addAction(copyFilePath);
+    }
+
+    QAction * pasteImage = new QAction(tr("&Paste Image"));
+    connect(pasteImage, &QAction::triggered, this, [ = ](){
+        m_graphicsView->showImage(clipboardImage);
+    });
+
+    QAction * pasteImageFile = new QAction(tr("&Paste Image File"));
+    connect(pasteImageFile, &QAction::triggered, this, [ = ](){
+        m_graphicsView->showFileFromUrl(clipboardFileUrl, true);
+    });
+
    QAction * stayOnTopMode = new QAction(tr("Stay on top"));
    connect(stayOnTopMode, &QAction::triggered, this, [ = ](){
        toggleStayOnTop();
@ -331,6 +389,18 @@ void MainWindow::contextMenuEvent(QContextMenuEvent *event)
        };
        m_graphicsView->showText(sl.join('\n'));
    });
+
+    if (copyMenu->actions().count() == 1) {
+        menu->addActions(copyMenu->actions());
+    } else {
+        menu->addMenu(copyMenu);
+    }
+    if (!clipboardImage.isNull()) {
+        menu->addAction(pasteImage);
+    } else if (clipboardFileUrl.isValid()) {
+        menu->addAction(pasteImageFile);
+    }
+    menu->addSeparator();
    menu->addAction(stayOnTopMode);
    menu->addAction(protectedMode);
    menu->addSeparator();
--- a/mainwindow.h
+++ b/mainwindow.h
@ -25,6 +25,7 @@ public:

    void showUrls(const QList<QUrl> &urls);
    void adjustWindowSizeBySceneRect();
+    QUrl currentImageFileUrl() const;

    void loadGalleryBySingleLocalFile(const QString &path);
    void galleryPrev();