Edit metadata single dialog is now fully functional

src/calibre/gui2/metadata/basic_widgets.py

@@ -9,7 +9,7 @@ __docformat__ = 'restructuredtext en'
 
 import textwrap, re, os
 
-from PyQt4.Qt import (Qt, QDateEdit, QDate,
+from PyQt4.Qt import (Qt, QDateEdit, QDate, pyqtSignal,
     QIcon, QToolButton, QWidget, QLabel, QGridLayout,
     QDoubleSpinBox, QListWidgetItem, QSize, QPixmap,
     QPushButton, QSpinBox, QLineEdit, QSizePolicy)
@@ -613,6 +613,8 @@ class FormatsManager(QWidget): # {{{
 
 class Cover(ImageView): # {{{
 
+    download_cover = pyqtSignal()
+
     def __init__(self, parent):
         ImageView.__init__(self, parent)
         self.dialog = parent
@@ -703,9 +705,6 @@ class Cover(ImageView): # {{{
         cdata = im.export('png')
         self.current_val = cdata
 
-    def download_cover(self, *args):
-        pass # TODO: Implement this
-
     def generate_cover(self, *args):
         from calibre.ebooks import calibre_cover
         from calibre.ebooks.metadata import fmt_sidx

src/calibre/gui2/metadata/single.py

@@ -133,6 +133,7 @@ class MetadataSingleDialogBase(ResizableDialog):
         self.formats_manager.cover_from_format_button.clicked.connect(
                 self.cover_from_format)
         self.cover = Cover(self)
+        self.cover.download_cover.connect(self.download_cover)
         self.basic_metadata_widgets.append(self.cover)
 
         self.comments = CommentsEdit(self, self.one_line_comments_toolbar)
@@ -159,7 +160,7 @@ class MetadataSingleDialogBase(ResizableDialog):
         self.basic_metadata_widgets.extend([self.timestamp, self.pubdate])
 
         self.fetch_metadata_button = QPushButton(
-                _('&Fetch metadata from server'), self)
+                _('&Download metadata'), self)
         self.fetch_metadata_button.clicked.connect(self.fetch_metadata)
         font = self.fmb_font = QFont()
         font.setBold(True)
@@ -313,6 +314,17 @@ class MetadataSingleDialogBase(ResizableDialog):
                 self.update_from_mi(mi)
             if d.cover_pixmap is not None:
                 self.cover.current_val = pixmap_to_data(d.cover_pixmap)
+
+    def download_cover(self, *args):
+        from calibre.gui2.metadata.single_download import CoverFetch
+        d = CoverFetch(self.cover.pixmap(), self)
+        ret = d.start(self.title.current_val, self.authors.current_val,
+                self.identifiers.current_val)
+        if ret == d.Accepted:
+            if d.cover_pixmap is not None:
+                self.cover.current_val = pixmap_to_data(d.cover_pixmap)
+
+
     # }}}
 
     def apply_changes(self):

src/calibre/gui2/metadata/single_download.py

@@ -678,7 +678,8 @@ class CoversWidget(QWidget): # {{{
     def start(self, book, current_cover, title, authors):
         self.book, self.current_cover = book, current_cover
         self.title, self.authors = title, authors
-        self.log('\n\nStarting cover download for:', book.title)
+        self.log('Starting cover download for:', book.title)
+        self.log('Query:', title, authors, self.book.identifiers)
         self.msg.setText('<p>'+_('Downloading covers for <b>%s</b>, please wait...')%book.title)
         self.covers_view.start()
 
@@ -850,6 +851,7 @@ class FullFetch(QDialog): # {{{
         self.ok_button.setVisible(True)
         self.book = book
         self.stack.setCurrentIndex(1)
+        self.log('\n\n')
         self.covers_widget.start(book, self.current_cover,
                 self.title, self.authors)
 
@@ -859,6 +861,7 @@ class FullFetch(QDialog): # {{{
 
     def reject(self):
         self.identify_widget.cancel()
+        self.covers_widget.cancel()
         return QDialog.reject(self)
 
     def cleanup(self):
@@ -888,6 +891,59 @@ class FullFetch(QDialog): # {{{
         return self.exec_()
 # }}}
 
+class CoverFetch(QDialog): # {{{
+
+    def __init__(self, current_cover=None, parent=None):
+        QDialog.__init__(self, parent)
+        self.current_cover = current_cover
+        self.log = Log()
+        self.cover_pixmap = None
+
+        self.setWindowTitle(_('Downloading cover...'))
+        self.setWindowIcon(QIcon(I('book.png')))
+
+        self.l = l = QVBoxLayout()
+        self.setLayout(l)
+
+        self.covers_widget = CoversWidget(self.log, self.current_cover, parent=self)
+        self.covers_widget.chosen.connect(self.accept)
+        l.addWidget(self.covers_widget)
+
+        self.resize(850, 550)
+
+        self.finished.connect(self.cleanup)
+
+        self.bb = QDialogButtonBox(QDialogButtonBox.Cancel|QDialogButtonBox.Ok)
+        l.addWidget(self.bb)
+        self.log_button = self.bb.addButton(_('View log'), self.bb.ActionRole)
+        self.log_button.clicked.connect(self.view_log)
+        self.log_button.setIcon(QIcon(I('debug.png')))
+        self.bb.rejected.connect(self.reject)
+        self.bb.accepted.connect(self.accept)
+
+    def cleanup(self):
+        self.covers_widget.cleanup()
+
+    def reject(self):
+        self.covers_widget.cancel()
+        return QDialog.reject(self)
+
+    def accept(self, *args):
+        self.cover_pixmap = self.covers_widget.cover_pixmap()
+        QDialog.accept(self)
+
+    def start(self, title, authors, identifiers):
+        book = Metadata(title, authors)
+        book.identifiers = identifiers
+        self.covers_widget.start(book, self.current_cover,
+                title, authors)
+        return self.exec_()
+
+    def view_log(self):
+        self._lv = LogViewer(self.log, self)
+
+# }}}
+
 if __name__ == '__main__':
     #DEBUG_DIALOG = True
     app = QApplication([])