Cutlery/calibre
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Edit book: Insert image dialog: Add buttons to change the image thumbnail size. Fixes #1791428 [[enhancement] editor: insert image larger thumbnails](https://bugs.launchpad.net/calibre/+bug/1791428)

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Kovid Goyal 2018-09-27 20:54:11 +05:30
parent d4da36c6f7
commit 79da7a7a75
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1 changed files with 24 additions and 2 deletions
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26
src/calibre/gui2/tweak_book/editor/insert_resource.py
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@ -80,11 +80,18 @@ class ImageDelegate(QStyledItemDelegate):
def __init__(self, parent): def __init__(self, parent):
super(ImageDelegate, self).__init__(parent) super(ImageDelegate, self).__init__(parent)
self.current_basic_size = [120, 160]
self.set_dimensions()
def change_size(self, increase=True):
percent = 10 if increase else -10
frac = (100 + percent) / 100.
self.current_basic_size[0] = max(40, int(frac * self.current_basic_size[0]))
self.current_basic_size[1] = max(60, int(frac * self.current_basic_size[1]))
self.set_dimensions() self.set_dimensions()
self.cover_cache = {}
def set_dimensions(self): def set_dimensions(self):
width, height = 120, 160 width, height = self.current_basic_size
self.cover_size = QSize(width, height) self.cover_size = QSize(width, height)
f = self.parent().font() f = self.parent().font()
sz = f.pixelSize() sz = f.pixelSize()
@ -93,6 +100,7 @@ class ImageDelegate(QStyledItemDelegate):
self.title_height = max(25, sz + 10) self.title_height = max(25, sz + 10)
self.item_size = self.cover_size + QSize(2 * self.MARGIN, (2 * self.MARGIN) + self.title_height) self.item_size = self.cover_size + QSize(2 * self.MARGIN, (2 * self.MARGIN) + self.title_height)
self.calculate_spacing() self.calculate_spacing()
self.cover_cache = {}
def calculate_spacing(self): def calculate_spacing(self):
self.spacing = max(10, min(50, int(0.1 * self.item_size.width()))) self.spacing = max(10, min(50, int(0.1 * self.item_size.width())))
@ -265,6 +273,12 @@ class InsertImage(Dialog):
h = QHBoxLayout() h = QHBoxLayout()
l.addLayout(h, 3, 0, 1, -1) l.addLayout(h, 3, 0, 1, -1)
h.addWidget(f), h.addStretch(10), h.addWidget(a) h.addWidget(f), h.addStretch(10), h.addWidget(a)
b = self.bb.addButton(_('&Zoom in'), self.bb.ActionRole)
b.clicked.connect(self.zoom_in)
b.setIcon(QIcon(I('plus.png')))
b = self.bb.addButton(_('Zoom &out'), self.bb.ActionRole)
b.clicked.connect(self.zoom_out)
b.setIcon(QIcon(I('minus.png')))
l.addWidget(self.bb, 4, 0, 1, 2) l.addWidget(self.bb, 4, 0, 1, 2)
def full_page_image_toggled(self): def full_page_image_toggled(self):
@ -291,6 +305,14 @@ class InsertImage(Dialog):
self.accept() self.accept()
self.chosen_image_is_external = (d.filename, path) self.chosen_image_is_external = (d.filename, path)
def zoom_in(self):
self.d.change_size(increase=True)
self.model.beginResetModel(), self.model.endResetModel()
def zoom_out(self):
self.d.change_size(increase=False)
self.model.beginResetModel(), self.model.endResetModel()
def paste_image(self): def paste_image(self):
c = QApplication.instance().clipboard() c = QApplication.instance().clipboard()
img = c.image() img = c.image()