SarasasChipWorkshop/sarasacw-picture
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feat: support basic image copy and paste

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This commit is contained in:
Gary Wang
2020-01-01 14:51:46 +08:00
parent 4a5fe4c289
commit c51a603ec9
8 changed files with 183 additions and 32 deletions
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74
mainwindow.cpp
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@@ -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();