From dc799bbe1645ae75e8ab8bd055bfac239f07227f Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Thu, 14 Jan 2010 19:18:12 -0700
Subject: [PATCH] Implement #4564 (Context menu for covers in meta information
 editor (copy/paste))

---
 src/calibre/gui2/dialogs/metadata_single.py |  4 +--
 src/calibre/gui2/widgets.py                 | 29 ++++++++++++++++++---
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/src/calibre/gui2/dialogs/metadata_single.py b/src/calibre/gui2/dialogs/metadata_single.py
index 63dc54df18..a9130b2ea2 100644
--- a/src/calibre/gui2/dialogs/metadata_single.py
+++ b/src/calibre/gui2/dialogs/metadata_single.py
@@ -430,9 +430,9 @@ class MetadataSingleDialog(ResizableDialog, Ui_MetadataSingleDialog):
         self.authors.setText(title)
         self.author_sort.setText('')
 
-    def cover_dropped(self, paths):
+    def cover_dropped(self, cover_data):
         self.cover_changed = True
-        self.cover_data = self.cover.cover_data
+        self.cover_data = cover_data
 
     def initialize_combos(self):
         self.initalize_authors()
diff --git a/src/calibre/gui2/widgets.py b/src/calibre/gui2/widgets.py
index 474345d442..c7031992e8 100644
--- a/src/calibre/gui2/widgets.py
+++ b/src/calibre/gui2/widgets.py
@@ -14,7 +14,7 @@ from PyQt4.Qt import QListView, QIcon, QFont, QLabel, QListWidget, \
                         QMenu, QStringListModel, QCompleter, QStringList
 
 from calibre.gui2 import human_readable, NONE, TableView, \
-                         qstring_to_unicode, error_dialog
+                         qstring_to_unicode, error_dialog, pixmap_to_data
 from calibre.gui2.dialogs.job_view_ui import Ui_Dialog
 from calibre.gui2.filename_pattern_ui import Ui_Form
 from calibre import fit_image
@@ -178,8 +178,8 @@ class ImageView(QLabel):
             if not pmap.isNull():
                 self.setPixmap(pmap)
                 event.accept()
-                self.cover_data = open(path, 'rb').read()
-                self.emit(SIGNAL('cover_changed(PyQt_PyObject)'), paths)
+                self.emit(SIGNAL('cover_changed(PyQt_PyObject)'), open(path,
+                    'rb').read())
                 break
 
     def dragMoveEvent(self, event):
@@ -191,6 +191,29 @@ class ImageView(QLabel):
         self.setMaximumWidth(width)
         self.setMaximumHeight(height)
 
+    def contextMenuEvent(self, ev):
+        cm = QMenu(self)
+        copy = cm.addAction(_('Copy Image'))
+        paste = cm.addAction(_('Paste Image'))
+        if not QApplication.instance().clipboard().mimeData().hasImage():
+            paste.setEnabled(False)
+        copy.triggered.connect(self.copy_to_clipboard)
+        paste.triggered.connect(self.paste_from_clipboard)
+        cm.exec_(ev.globalPos())
+
+    def copy_to_clipboard(self):
+        QApplication.instance().clipboard().setPixmap(self.pixmap())
+
+    def paste_from_clipboard(self):
+        cb = QApplication.instance().clipboard()
+        pmap = cb.pixmap()
+        if pmap.isNull() and cb.supportsSelection():
+            pmap = cb.pixmap(cb.Selection)
+        if not pmap.isNull():
+            self.setPixmap(pmap)
+            self.emit(SIGNAL('cover_changed(PyQt_PyObject)'),
+                    pixmap_to_data(pmap))
+
 
 class LocationModel(QAbstractListModel):