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When dragging multiple books, indicate that by showing a cover stack

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Kovid Goyal 2010-10-02 22:37:23 -06:00
parent 4e13ec5ff8
commit 974fa8f003
1 changed files with 30 additions and 4 deletions
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34
src/calibre/gui2/library/views.py
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@ -10,7 +10,7 @@ from functools import partial
from PyQt4.Qt import QTableView, Qt, QAbstractItemView, QMenu, pyqtSignal, \
QModelIndex, QIcon, QItemSelection, QMimeData, QDrag, QApplication, \
QPoint, QPixmap, QUrl
QPoint, QPixmap, QUrl, QImage, QPainter, QColor, QRect
from calibre.gui2.library.delegates import RatingDelegate, PubDateDelegate, \
TextDelegate, DateDelegate, TagsDelegate, CcTextDelegate, \
@ -429,8 +429,32 @@ class BooksView(QTableView): # {{{
urls = [unicode(u.toLocalFile()) for u in event.mimeData().urls()]
return [u for u in urls if os.path.splitext(u)[1] and os.access(u, os.R_OK)]
def drag_icon(self, cover):
def drag_icon(self, cover, multiple):
cover = cover.scaledToHeight(120, Qt.SmoothTransformation)
if multiple:
base_width = cover.width()
base_height = cover.height()
base = QImage(base_width+21, base_height+21,
QImage.Format_ARGB32_Premultiplied)
base.fill(QColor(255, 255, 255, 0).rgba())
p = QPainter(base)
rect = QRect(20, 0, base_width, base_height)
p.fillRect(rect, QColor('white'))
p.drawRect(rect)
rect.moveLeft(10)
rect.moveTop(10)
p.fillRect(rect, QColor('white'))
p.drawRect(rect)
rect.moveLeft(0)
rect.moveTop(20)
p.fillRect(rect, QColor('white'))
p.save()
p.setCompositionMode(p.CompositionMode_SourceAtop)
p.drawImage(rect.topLeft(), cover)
p.restore()
p.drawRect(rect)
p.end()
cover = base
return QPixmap.fromImage(cover)
def drag_data(self):
@ -445,7 +469,8 @@ class BooksView(QTableView): # {{{
for i in selected])
drag = QDrag(self)
drag.setMimeData(md)
cover = self.drag_icon(m.cover(self.currentIndex().row()))
cover = self.drag_icon(m.cover(self.currentIndex().row()),
len(selected) > 1)
drag.setHotSpot(QPoint(cover.width()//3, cover.height()//3))
drag.setPixmap(cover)
return drag
@ -597,7 +622,8 @@ class DeviceBooksView(BooksView): # {{{
md.setUrls([QUrl.fromLocalFile(p) for p in paths])
drag = QDrag(self)
drag.setMimeData(md)
cover = self.drag_icon(m.cover(self.currentIndex().row()))
cover = self.drag_icon(m.cover(self.currentIndex().row()), len(paths) >
1)
drag.setHotSpot(QPoint(cover.width()//3, cover.height()//3))
drag.setPixmap(cover)
return drag