PDF cut-and-paste

[pykit.git] / PDFWidget.cc

diff --git a/PDFWidget.cc b/PDFWidget.cc
index d6e1417..6998d1e 100644 (file)
--- a/PDFWidget.cc
+++ b/PDFWidget.cc
@@ -16,6 +16,8 @@
 #include <QKeyEvent>
 #include <QWebView>
 #include <QWebFrame>
+#include <QApplication>
+#include <QClipboard>
 
 //#include "PDFWidget.mpp"
 #define prefix_
@@ -23,7 +25,7 @@
 
 prefix_ pykit::PDFWidget::PDFWidget(QString const & id, QNetworkAccessManager * manager,
                                     QWidget * parent)
-    : QLabel(parent), id_ (id), manager_ (manager), currentPage_ (0)
+    : QLabel(parent), id_ (id), manager_ (manager), currentPage_ (0), rubberBand_ (0)
 
 {
     QWebView * webView (dynamic_cast<QWebView*>(parent));
@@ -33,7 +35,7 @@ prefix_ pykit::PDFWidget::PDFWidget(QString const & id, QNetworkAccessManager *
 
 prefix_ pykit::PDFWidget::PDFWidget(QString const & id, QString const & document,
                                     QNetworkAccessManager * manager, QWidget * parent)
-    : QLabel(parent), id_ (id), manager_ (manager), currentPage_ (0)
+    : QLabel(parent), id_ (id), manager_ (manager), currentPage_ (0), rubberBand_ (0)
 
 {
     setFocusPolicy(Qt::WheelFocus);
@@ -44,6 +46,13 @@ prefix_ pykit::PDFWidget::PDFWidget(QString const & id, QString const & document
     documentSetup();
 }
 
+prefix_ pykit::PDFWidget::~PDFWidget()
+{
+    if (rubberBand_)
+        delete rubberBand_;
+}
+
+
 prefix_ void pykit::PDFWidget::load(QUrl const & url)
 {
     QNetworkRequest request (url);
@@ -57,12 +66,38 @@ prefix_ void pykit::PDFWidget::resizeEvent(QResizeEvent *)
         return;
     QSizeF pageSize (document_->page(currentPage_)->pageSizeF());
     double n = 72.0 * width() / pageSize.width();
-   if (n != dpi_) {
+    if (n != dpi_) {
         dpi_ = n;
         showPage();
     }
 }
 
+prefix_ void pykit::PDFWidget::mousePressEvent(QMouseEvent * event)
+{
+    origin_ = event->pos();
+    if (! rubberBand_)
+        rubberBand_ = new QRubberBand(QRubberBand::Rectangle, this);
+    rubberBand_->setGeometry(QRect(origin_, QSize()));
+    rubberBand_->show();
+}
+
+prefix_ void pykit::PDFWidget::mouseMoveEvent(QMouseEvent * event)
+{
+    if (rubberBand_)
+        rubberBand_->setGeometry(QRect(origin_, event->pos()).normalized());
+}
+
+prefix_ void pykit::PDFWidget::mouseReleaseEvent(QMouseEvent * event)
+{
+    if (rubberBand_) {
+        QMatrix matrix (dpi_ / 72.0, 0, 0, dpi_ / 72.0, 0, 0);
+        QRectF rect (matrix.inverted().mapRect(QRect(rubberBand_->pos(), rubberBand_->size())));
+        QString text = document_->page(currentPage_)->text(rect);
+        if (! text.isEmpty())
+            QApplication::clipboard()->setText(text);
+    }
+}
+
 prefix_ void pykit::PDFWidget::netLoadDocument()
 {
     QNetworkReply * reply = static_cast<QNetworkReply*>(sender());