def render_html(self, ok):
try:
if not ok:
return
cwidth, cheight = self.page.mainFrame().contentsSize().width(), self.page.mainFrame().contentsSize().height()
self.page.setViewportSize(QSize(cwidth, cheight))
factor = float(self.width)/cwidth if cwidth > self.width else 1
cutoff_height = int(self.height/factor)-3
image = QImage(self.page.viewportSize(), QImage.Format_ARGB32)
image.setDotsPerMeterX(self.dpi*(100/2.54))
image.setDotsPerMeterY(self.dpi*(100/2.54))
painter = QPainter(image)
self.page.mainFrame().render(painter)
painter.end()
cheight = image.height()
cwidth = image.width()
pos = 0
while pos < cheight:
img = image.copy(0, pos, cwidth, min(cheight-pos, cutoff_height))
pos += cutoff_height-20
if cwidth > self.width:
img = img.scaledToWidth(self.width, Qt.SmoothTransform)
f = os.path.join(self.tdir, '%d.png'%pos)
img.save(f)
self.images.append((f, img.width(), img.height()))
finally:
QApplication.quit()
def render_html(self, ok):
try:
if not ok:
return
cwidth, cheight = self.page.mainFrame().contentsSize().width(
), self.page.mainFrame().contentsSize().height()
self.page.setViewportSize(QSize(cwidth, cheight))
factor = float(self.width) / cwidth if cwidth > self.width else 1
cutoff_height = int(self.height / factor) - 3
image = QImage(self.page.viewportSize(), QImage.Format_ARGB32)
image.setDotsPerMeterX(self.dpi * (100 / 2.54))
image.setDotsPerMeterY(self.dpi * (100 / 2.54))
painter = QPainter(image)
self.page.mainFrame().render(painter)
painter.end()
cheight = image.height()
cwidth = image.width()
pos = 0
while pos < cheight:
img = image.copy(0, pos, cwidth,
min(cheight - pos, cutoff_height))
pos += cutoff_height - 20
if cwidth > self.width:
img = img.scaledToWidth(self.width, Qt.SmoothTransform)
f = os.path.join(self.tdir, '%d.png' % pos)
img.save(f)
self.images.append((f, img.width(), img.height()))
finally:
QApplication.quit()
def add_image(self, img, cache_key):
ref = self.get_image(cache_key)
if ref is not None:
return ref
fmt = img.format()
image = QImage(img)
if (image.depth() == 1 and img.colorTable().size() == 2 and
img.colorTable().at(0) == QColor(Qt.black).rgba() and
img.colorTable().at(1) == QColor(Qt.white).rgba()):
if fmt == QImage.Format_MonoLSB:
image = image.convertToFormat(QImage.Format_Mono)
fmt = QImage.Format_Mono
else:
if (fmt != QImage.Format_RGB32 and fmt != QImage.Format_ARGB32):
image = image.convertToFormat(QImage.Format_ARGB32)
fmt = QImage.Format_ARGB32
w = image.width()
h = image.height()
d = image.depth()
if fmt == QImage.Format_Mono:
bytes_per_line = (w + 7) >> 3
data = image.constBits().asstring(bytes_per_line * h)
return self.write_image(data, w, h, d, cache_key=cache_key)
has_alpha = False
soft_mask = None
if fmt == QImage.Format_ARGB32:
tmask = image.constBits().asstring(4*w*h)[self.alpha_bit::4]
sdata = bytearray(tmask)
vals = set(sdata)
vals.discard(255) # discard opaque pixels
has_alpha = bool(vals)
if has_alpha:
# Blend image onto a white background as otherwise Qt will render
# transparent pixels as black
background = QImage(image.size(), QImage.Format_ARGB32_Premultiplied)
background.fill(Qt.white)
painter = QPainter(background)
painter.drawImage(0, 0, image)
painter.end()
image = background
ba = QByteArray()
buf = QBuffer(ba)
image.save(buf, 'jpeg', 94)
data = bytes(ba.data())
if has_alpha:
soft_mask = self.write_image(tmask, w, h, 8)
return self.write_image(data, w, h, 32, dct=True,
soft_mask=soft_mask, cache_key=cache_key)
def add_image(self, img, cache_key):
ref = self.get_image(cache_key)
if ref is not None:
return ref
fmt = img.format()
image = QImage(img)
if (image.depth() == 1 and img.colorTable().size() == 2 and
img.colorTable().at(0) == QColor(Qt.black).rgba() and
img.colorTable().at(1) == QColor(Qt.white).rgba()):
if fmt == QImage.Format_MonoLSB:
image = image.convertToFormat(QImage.Format_Mono)
fmt = QImage.Format_Mono
else:
if (fmt != QImage.Format_RGB32 and fmt != QImage.Format_ARGB32):
image = image.convertToFormat(QImage.Format_ARGB32)
fmt = QImage.Format_ARGB32
w = image.width()
h = image.height()
d = image.depth()
if fmt == QImage.Format_Mono:
bytes_per_line = (w + 7) >> 3
data = image.constBits().asstring(bytes_per_line * h)
return self.write_image(data, w, h, d, cache_key=cache_key)
has_alpha = False
soft_mask = None
if fmt == QImage.Format_ARGB32:
tmask = image.constBits().asstring(4*w*h)[self.alpha_bit::4]
sdata = bytearray(tmask)
vals = set(sdata)
vals.discard(255) # discard opaque pixels
has_alpha = bool(vals)
if has_alpha:
# Blend image onto a white background as otherwise Qt will render
# transparent pixels as black
background = QImage(image.size(), QImage.Format_ARGB32_Premultiplied)
background.fill(Qt.white)
painter = QPainter(background)
painter.drawImage(0, 0, image)
painter.end()
image = background
ba = QByteArray()
buf = QBuffer(ba)
image.save(buf, 'jpeg', 94)
data = bytes(ba.data())
if has_alpha:
soft_mask = self.write_image(tmask, w, h, 8)
return self.write_image(data, w, h, 32, dct=True,
soft_mask=soft_mask, cache_key=cache_key)
def render_cover(self, book_id):
if self.ignore_render_requests.is_set():
return
tcdata, timestamp = self.thumbnail_cache[book_id]
use_cache = False
if timestamp is None:
# Not in cache
has_cover, cdata, timestamp = self.model(
).db.new_api.cover_or_cache(book_id, 0)
else:
has_cover, cdata, timestamp = self.model(
).db.new_api.cover_or_cache(book_id, timestamp)
if has_cover and cdata is None:
# The cached cover is fresh
cdata = tcdata
use_cache = True
if has_cover:
p = QImage()
p.loadFromData(cdata, CACHE_FORMAT if cdata is tcdata else 'JPEG')
if p.isNull() and cdata is tcdata:
# Invalid image in cache
self.thumbnail_cache.invalidate((book_id, ))
self.update_item.emit(book_id)
return
cdata = None if p.isNull() else p
if not use_cache: # cache is stale
if cdata is not None:
width, height = p.width(), p.height()
scaled, nwidth, nheight = fit_image(
width, height, self.delegate.cover_size.width(),
self.delegate.cover_size.height())
if scaled:
if self.ignore_render_requests.is_set():
return
p = p.scaled(nwidth, nheight, Qt.IgnoreAspectRatio,
Qt.SmoothTransformation)
cdata = p
# update cache
if cdata is None:
self.thumbnail_cache.invalidate((book_id, ))
else:
try:
self.thumbnail_cache.insert(book_id, timestamp,
image_to_data(cdata))
except EncodeError as err:
self.thumbnail_cache.invalidate((book_id, ))
prints(err)
except Exception:
import traceback
traceback.print_exc()
elif tcdata is not None:
# Cover was removed, but it exists in cache, remove from cache
self.thumbnail_cache.invalidate((book_id, ))
self.delegate.cover_cache.set(book_id, cdata)
self.update_item.emit(book_id)
def render_cover(self, book_id):
if self.ignore_render_requests.is_set():
return
tcdata, timestamp = self.thumbnail_cache[book_id]
use_cache = False
if timestamp is None:
# Not in cache
has_cover, cdata, timestamp = self.model().db.new_api.cover_or_cache(book_id, 0)
else:
has_cover, cdata, timestamp = self.model().db.new_api.cover_or_cache(book_id, timestamp)
if has_cover and cdata is None:
# The cached cover is fresh
cdata = tcdata
use_cache = True
if has_cover:
p = QImage()
p.loadFromData(cdata, CACHE_FORMAT if cdata is tcdata else "JPEG")
if p.isNull() and cdata is tcdata:
# Invalid image in cache
self.thumbnail_cache.invalidate((book_id,))
self.update_item.emit(book_id)
return
cdata = None if p.isNull() else p
if not use_cache: # cache is stale
if cdata is not None:
width, height = p.width(), p.height()
scaled, nwidth, nheight = fit_image(
width, height, self.delegate.cover_size.width(), self.delegate.cover_size.height()
)
if scaled:
if self.ignore_render_requests.is_set():
return
p = p.scaled(nwidth, nheight, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
cdata = p
# update cache
if cdata is None:
self.thumbnail_cache.invalidate((book_id,))
else:
try:
self.thumbnail_cache.insert(book_id, timestamp, image_to_data(cdata))
except EncodeError as err:
self.thumbnail_cache.invalidate((book_id,))
prints(err)
except Exception:
import traceback
traceback.print_exc()
elif tcdata is not None:
# Cover was removed, but it exists in cache, remove from cache
self.thumbnail_cache.invalidate((book_id,))
self.delegate.cover_cache.set(book_id, cdata)
self.update_item.emit(book_id)
def qimage_to_magick(img):
ans = Image()
fmt = get_pixel_map()
if not img.hasAlphaChannel():
if img.format() != img.Format_RGB32:
img = QImage(img)
img.setFormat(QImage.Format_RGB32)
fmt = fmt.replace('A', 'P')
else:
if img.format() != img.Format_ARGB32:
img = QImage(img)
img.setFormat(img.Format_ARGB32)
raw = img.constBits().ascapsule()
ans.constitute(img.width(), img.height(), fmt, raw)
return ans
def render_cover(self, book_id):
cdata = self.model().db.new_api.cover(book_id)
if self.ignore_render_requests.is_set():
return
if cdata is not None:
p = QImage()
p.loadFromData(cdata)
cdata = None
if not p.isNull():
width, height = p.width(), p.height()
scaled, nwidth, nheight = fit_image(width, height, self.delegate.cover_size.width(), self.delegate.cover_size.height())
if scaled:
if self.ignore_render_requests.is_set():
return
p = p.scaled(nwidth, nheight, Qt.IgnoreAspectRatio, Qt.SmoothTransformation)
cdata = p
self.delegate.cover_cache.set(book_id, cdata)
self.update_item.emit(book_id)
def qimage_to_magick(img):
ans = Image()
if isosx:
# For some reson, on OSX MagickConstituteImage fails, and I can't be
# bothered figuring out why. Dumping to uncompressed PNG is reasonably
# fast.
raw = pixmap_to_data(img, 'PNG', quality=100)
ans.load(raw)
return ans
fmt = get_pixel_map()
if not img.hasAlphaChannel():
if img.format() != img.Format_RGB32:
img = QImage(img)
img.setFormat(QImage.Format_RGB32)
fmt = fmt.replace('A', 'P')
else:
if img.format() != img.Format_ARGB32:
img = QImage(img)
img.setFormat(img.Format_ARGB32)
raw = img.constBits().ascapsule()
ans.constitute(img.width(), img.height(), fmt, raw)
return ans
def qimage_to_magick(img):
ans = Image()
if isosx:
# For some reson, on OSX MagickConstituteImage fails, and I can't be
# bothered figuring out why. Dumping to uncompressed PNG is reasonably
# fast.
raw = pixmap_to_data(img, 'PNG', quality=100)
ans.load(raw)
return ans
fmt = get_pixel_map()
if not img.hasAlphaChannel():
if img.format() != img.Format_RGB32:
img = QImage(img)
img.setFormat(QImage.Format_RGB32)
fmt = fmt.replace('A', 'P')
else:
if img.format() != img.Format_ARGB32:
img = QImage(img)
img.setFormat(img.Format_ARGB32)
raw = img.constBits().ascapsule()
ans.constitute(img.width(), img.height(), fmt, raw)
return ans
def _populate_covers(self):
'''
Display calibre cover for both unless mismatch
'''
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(), self.MISMATCH_COLOR)
m_painter.drawImage(border_width,
border_width,
m_image)
else:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(),
m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
self.calibre_cover.setMaximumSize(QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.calibre_cover.setText('')
self.calibre_cover.setScaledContents(False)
self.marvin_cover.setMaximumSize(QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.marvin_cover.setText('')
self.marvin_cover.setScaledContents(False)
if self.cid:
db = self.opts.gui.current_db
if 'cover_hash' not in self.mismatches:
mi = db.get_metadata(self.cid, index_is_id=True, get_cover=True, cover_as_data=True)
c_image = QImage()
if mi.has_cover:
c_image.loadFromData(mi.cover_data[1])
c_image = c_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.c_pixmap = QPixmap(QSize(c_image.width(),
c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.drawImage(0, 0, c_image)
else:
c_image.load(I('book.png'))
c_image = c_image.scaledToWidth(135,
Qt.SmoothTransformation)
# Construct a QPixmap with dialog background
self.c_pixmap = QPixmap(
QSize(c_image.width(),
c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
bgcolor = self.palette().color(QPalette.Background)
c_painter.fillRect(self.c_pixmap.rect(), bgcolor)
c_painter.drawImage(0, 0, c_image)
# Set calibre cover
self.calibre_cover.setPixmap(self.c_pixmap)
if self.opts.prefs.get('development_mode', False):
# Show individual covers
_fetch_marvin_cover()
else:
# Show calibre cover on both sides
self.marvin_cover.setPixmap(self.c_pixmap)
else:
# Covers don't match - render with border
# Construct a QImage with the cover sized to fit inside border
c_image = QImage()
cdata = db.cover(self.cid, index_is_id=True)
if cdata is None:
c_image.load(I('book.png'))
self.calibre_cover.setScaledContents(True)
else:
c_image.loadFromData(cdata)
c_image = c_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.c_pixmap = QPixmap(
QSize(c_image.width() + self.BORDER_WIDTH * 2,
c_image.height() + self.BORDER_WIDTH * 2))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.fillRect(self.c_pixmap.rect(),self.MISMATCH_COLOR)
c_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH, c_image)
self.calibre_cover.setPixmap(self.c_pixmap)
# Render Marvin cover with small border if different covers,
# large cover if no cover hash (loaded via OPDS)
border_width = self.BORDER_WIDTH
if self.mismatches['cover_hash']['Marvin'] is None:
border_width = self.BORDER_WIDTH * 3
_fetch_marvin_cover(border_width=border_width)
else:
_fetch_marvin_cover()
def _fetch_marvin_cover(with_border=False):
'''
Retrieve LargeCoverJpg from cache
'''
self._log_location()
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(
size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if with_border:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.m_pixmap = QPixmap(
QSize(m_image.width() + self.BORDER_WIDTH * 2,
m_image.height() + self.BORDER_WIDTH * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(),
QColor(0xFD, 0xFF, 0x99))
m_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH,
m_image)
else:
m_image = m_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(), m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
class GLButton(Action, GLFrame):
def __init__(self,
parent,
x=0,
y=0,
width=None,
height=None,
img=None,
text=None,
togglable=False,
imgoff=None,
action=None,
params=None):
Action.__init__(self, action, params)
GLFrame.__init__(self, parent, x, y, width, height)
self.img = img
self.setText(text)
self.textColor = QColor(0, 0, 0)
self.togglable = togglable
self.toggled = False
self.imgoff = imgoff
self.focus = False
self.enabled = True
self.__initialized__ = False
def setText(self, text):
self.__text = text
self.__computeTextPosition()
def geometryChangedEvent(self):
self.__computeTextPosition()
def actionEvent(self):
if self.togglable:
self.toggled = not self.toggled
def __computeTextPosition(self):
if not self.__text is None:
qf = QFontMetrics(self.parent.font())
self.__textx = self.x + (self.width - qf.width(self.__text)) / 2
self.__texty = self.y + qf.ascent() + (self.height -
qf.height()) / 2
def __del__(self):
self.parent.deleteTexture(self.textureId)
if self.imgoff:
self.parent.deleteTexture(self.textureOffId)
def init(self):
if not self.__initialized__:
self.__initialized__ = True
if self.img:
self.imgV = QImage(self.img)
assert not self.imgV.isNull()
if self.width is None:
self.width = self.imgV.width()
if self.height is None:
self.height = self.imgV.height()
self.textureId = self.importTexture(self.imgV)
if self.imgoff:
self.imgoffV = QImage(self.imgoff)
self.textureOffId = self.importTexture(self.imgoffV)
self.__defaulttoggled = self.toggled
self.__defaultenabled = self.enabled
else:
self.toggled = self.__defaulttoggled
self.enabled = self.__defaultenabled
def importTexture(self, img):
return self.parent.bindTexture(img)
def draw(self):
if self.visible:
glDisable(GL_LIGHTING)
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
self.parent.startScreenCoordinatesSystem()
glLineWidth(2)
glDisable(GL_LIGHTING)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE)
if not self.enabled:
glColor4f(0.5, 0.5, 0.5, 1.0)
else:
glColor4f(0, 0, 0, 1.0)
self.drawBox()
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL)
if not self.enabled:
glColor4f(1.0, 1.0, 1.0, 0.2)
elif self.focus:
glColor4f(1.0, 1.0, 1.0, 0.6)
else:
glColor4f(1.0, 1.0, 1.0, 0.4)
self.drawBox()
if self.img:
glTranslatef(0, 0, -0.05)
glEnable(GL_TEXTURE_2D)
if not self.toggled and self.enabled:
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE)
glBindTexture(GL_TEXTURE_2D, self.textureId)
else:
if self.imgoff:
glBindTexture(GL_TEXTURE_2D, self.textureOffId)
else:
if not self.toggled:
glColor4f(1, 1, 1, 0.7)
else:
if self.enabled:
glColor4f(0.2, 0.2, 0.2, 0.5)
else:
glColor4f(0.2, 0.2, 0.2, 0.3)
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE,
GL_MODULATE)
glBindTexture(GL_TEXTURE_2D, self.textureId)
glMatrixMode(GL_TEXTURE)
glLoadIdentity()
self.drawTexBox()
glDisable(GL_TEXTURE_2D)
glTranslatef(0, 0, 0.05)
glLineWidth(1)
if not self.__text is None:
glColor4f(self.textColor.redF(), self.textColor.greenF(),
self.textColor.blueF(), self.textColor.alphaF())
self.parent.drawText(self.__textx, self.__texty, self.__text)
glEnable(GL_LIGHTING)
self.parent.stopScreenCoordinatesSystem()
def mousePressEvent(self, event):
if self.enabled and self.visible and self.containspos(event.pos()):
return True
return False
def mouseMoveEvent(self, event):
if self.enabled and self.visible and self.containspos(event.pos()):
self.parent.setFocusWidget(self)
return True
return False
def mouseReleaseEvent(self, event):
if self.enabled and self.visible and self.containspos(event.pos()):
self.parent.selectedButton = None
self.applyAction()
return True
return False
class MainWindow(QWidget):
def __init__(self):
QMainWindow.__init__(self)
self.resize(500, 300)
self.mainLayout = QHBoxLayout()
self.chooseLayout = QHBoxLayout()
self.layout = QVBoxLayout()
self.pixLayout = QHBoxLayout()
self.thresholdLayout = QHBoxLayout()
self.timeLayout = QHBoxLayout()
self.contoursLayout = QHBoxLayout()
self.setLayout(self.mainLayout)
self.setWindowTitle(
"Image To Gcode V1.0 ----- build By yizheneng [email protected]")
self.imageLabel = QLabel("image")
self.mainLayout.addWidget(self.imageLabel)
self.mainLayout.addLayout(self.layout)
self.mainLayout.setStretchFactor(self.layout, 1)
self.mainLayout.setStretchFactor(self.imageLabel, 3)
self.pixLengthLabel = QLabel(u"像素大小(mm):")
self.pixDoubleSpinBox = QDoubleSpinBox()
self.pixDoubleSpinBox.setValue(1)
self.pixDoubleSpinBox.setDecimals(6)
self.pixLayout.addWidget(self.pixLengthLabel)
self.pixLayout.addWidget(self.pixDoubleSpinBox)
self.thresholdLabel = QLabel(u"阈值:")
self.thresholdSpinBox = QSpinBox()
self.thresholdSpinBox.valueChanged.connect(self.ThresholdValChange)
self.thresholdSpinBox.setMaximum(255)
self.thresholdSpinBox.setValue(120)
self.thresholdLayout.addWidget(self.thresholdLabel)
self.thresholdLayout.addWidget(self.thresholdSpinBox)
self.timeLabel = QLabel(u"灼烧时间:")
self.timeDoubleSpinBox = QDoubleSpinBox()
self.timeDoubleSpinBox.setValue(0.3)
self.timeLayout.addWidget(self.timeLabel)
self.timeLayout.addWidget(self.timeDoubleSpinBox)
self.chooseLabel = QLabel(u"只雕刻轮廓:")
self.chooseBox = QCheckBox()
self.chooseLayout.addWidget(self.chooseLabel)
self.chooseLayout.addWidget(self.chooseBox)
self.chooseBox.stateChanged.connect(self.ChooseValChanged)
self.contoursWidthLabel = QLabel(u"边框宽度")
self.ContoursWidthSpinBox = QSpinBox()
self.ContoursWidthSpinBox.setEnabled(False)
self.ContoursWidthSpinBox.setValue(1)
self.contoursLayout.addWidget(self.contoursWidthLabel)
self.contoursLayout.addWidget(self.ContoursWidthSpinBox)
self.loadImageButton = QPushButton(u"加载图片")
self.loadImageButton.clicked.connect(self.LoadImageButtonClicked)
self.previewButton = QPushButton(u"预览")
self.previewButton.clicked.connect(self.ThresholdValChange)
self.makeCodeButton = QPushButton(u"生成G代码")
self.makeCodeButton.clicked.connect(self.MakeGcode)
self.layout.addLayout(self.pixLayout)
self.layout.addLayout(self.thresholdLayout)
self.layout.addLayout(self.timeLayout)
self.layout.addLayout(self.chooseLayout)
self.layout.addLayout(self.contoursLayout)
self.layout.addWidget(self.loadImageButton)
self.layout.addWidget(self.previewButton)
self.layout.addWidget(self.makeCodeButton)
def LoadImageButtonClicked(self):
self.filePath = QFileDialog.getOpenFileName(self, u"选择图片文件", "",
"Images (*.bmp)")
if self.filePath == "":
QMessageBox.warning(self, u"发生错误", u"没有选择可以识别的文件！！")
return
self.srcImage = QImage(self.filePath)
self.grayImage = QImage(self.srcImage.size(), QImage.Format_Indexed8)
for i in range(256):
self.grayImage.setColor(i, qRgb(i, i, i))
for i in range(self.srcImage.width()):
for j in range(self.srcImage.height()):
temp = qGray(self.srcImage.pixel(i, j))
self.grayImage.setPixel(i, j, temp)
self.srcImage = QImage(self.grayImage)
self.resultImage = QImage(self.grayImage)
self.imageLabel.setPixmap(QPixmap(self.srcImage))
def ChooseValChanged(self):
self.ContoursWidthSpinBox.setEnabled(self.chooseBox.isChecked())
def ThresholdValChange(self):
for i in range(self.srcImage.width()):
for j in range(self.srcImage.height()):
temp = self.srcImage.pixelIndex(i, j)
if (temp >= self.thresholdSpinBox.value()):
self.grayImage.setPixel(i, j, 255)
else:
self.grayImage.setPixel(i, j, 0)
self.resultImage = QImage(self.grayImage)
#如果选中了只雕刻轮廓
if self.chooseBox.isChecked():
img = np.zeros(
(self.grayImage.height(), self.grayImage.width(), 1), np.uint8)
for i in range(self.grayImage.width()):
for j in range(self.grayImage.height()):
img[j, i] = self.grayImage.pixelIndex(i, j)
#提取轮廓
contours = cv.findContours(img, cv.RETR_LIST,
cv.CHAIN_APPROX_SIMPLE)
img = np.zeros(
(self.grayImage.height(), self.grayImage.width(), 1), np.uint8)
cv.drawContours(img, contours[1][:-1], -1, (255, 255, 255),
self.ContoursWidthSpinBox.value())
#转换轮廓到显示界面
for i in range(self.resultImage.width()):
for j in range(self.resultImage.height()):
if img[j, i] == 0:
self.resultImage.setPixel(i, j, 255)
else:
self.resultImage.setPixel(i, j, 0)
self.imageLabel.setPixmap(QPixmap(self.resultImage))
def MakeGcode(self):
path = QFileDialog.getSaveFileName(self, u"选择保存路径", "", " (*.nc)")
if path == "":
QMessageBox.warning(self, u"发生错误", u"路径错误！！")
return
f = open(path, 'w')
f.write("M5\n")
for i in range(self.resultImage.width()):
flag = False
#检测这一行是否有点
for j in range(self.resultImage.height()):
if self.resultImage.pixelIndex(i, j) < 128:
flag = True
break
#如果这一行都没有点则跳过这一行
if flag:
f.write("G0 Y%f\n" % (i * self.pixDoubleSpinBox.value()))
else:
continue
if (i % 2) > 0:
for j in range(self.resultImage.height()):
if self.resultImage.pixelIndex(i, j) < 128:
f.write("G0 X%f\n" %
(j * self.pixDoubleSpinBox.value()))
f.write("M3\n")
f.write("G4 P%f\n" % self.timeDoubleSpinBox.value())
f.write("M5\n")
else:
for j in range(self.resultImage.height())[::-1]:
if self.resultImage.pixelIndex(i, j) < 128:
f.write("G0 X%f\n" %
(j * self.pixDoubleSpinBox.value()))
f.write("M3\n")
f.write("G4 P%f\n" % self.timeDoubleSpinBox.value())
f.write("M5\n")
f.write("M5\n")
f.write("G0 X0 Y0\n")
f.close()
QMessageBox.information(self, u"成功", u"生成G代码文件成功！！")
def drawOverlay(self, image, entry):
#establish painter
painter = QPainter()
#set adjustment factor
corner_fac = 0.037
category_fac = 0.27
text_fac = 0.03
#load images
category = QImage("res/" + str(entry[0]) + ".png")
upperLeft = QImage("res/upperLeft.png")
upperRight = QImage("res/upperRight.png")
lowerLeft = QImage("res/lowerLeft.png")
lowerRight = QImage("res/lowerRight.png")
#adjust overlays to image size
category = category.scaledToHeight(category_fac*image.height(), Qt.SmoothTransformation)
upperLeft = upperLeft.scaledToHeight(corner_fac*image.height(), Qt.SmoothTransformation)
upperRight = upperRight.scaledToHeight(corner_fac*image.height(), Qt.SmoothTransformation)
lowerLeft = lowerLeft.scaledToHeight(corner_fac*image.height(), Qt.SmoothTransformation)
lowerRight = lowerRight.scaledToHeight(corner_fac*image.height(), Qt.SmoothTransformation)
self.voivoifont.setPixelSize(text_fac*image.height())
# create size calculator for font
size_calculator = QFontMetrics(self.voivoifont)
text_width = size_calculator.boundingRect(entry[3]).width()
text_height = size_calculator.height()
#define text-boundary
margin_hor = 0.01*image.width()
max_text_bound = QRect(margin_hor,image.height()-image.height()/3, image.width()-image.width()/3, image.height()/3)
#format text for display
#text_elided = size_calculator.elidedText(entry[3].upper(), Qt.ElideRight, max_text_bound.width(), Qt.TextWordWrap)
text_upper = entry[3].upper()
text_bounds = size_calculator.boundingRect(max_text_bound, Qt.TextWordWrap, text_upper)
text_width = text_bounds.width()
text_height = text_bounds.height()
#calculate positions
margin_ver = 0.018*image.height()
#margin_hor = 0.01*image.width()
lower_bound = image.height()-margin_ver
upper_bound = lower_bound-lowerRight.height()-text_height-upperLeft.height()
#begin painting on image
painter.begin(image)
#first paint category
painter.drawImage(image.width()-category.width()-margin_hor, margin_ver, category)
# now background rectangle and corners + comment
if len(text_upper) > 0:
painter.fillRect(margin_hor, upper_bound , lowerLeft.width()+text_width+lowerRight.width(), lowerLeft.height()+text_height+upperLeft.height(), QColor(qRgb(255,255,255)))
painter.drawImage(margin_hor, lower_bound-lowerLeft.height(), lowerLeft)
painter.drawImage(margin_hor, upper_bound, upperLeft)
painter.drawImage(margin_hor+lowerLeft.width()+text_width, upper_bound, upperRight)
painter.drawImage(margin_hor+lowerLeft.width()+text_width,lower_bound-lowerRight.height(), lowerRight)
# write text to prepared rectangle
painter.setPen(QColor(qRgb(17,195,159)))
painter.setFont(self.voivoifont)
#print(text_upper)
painter.drawText(margin_hor+lowerLeft.width(),image.height()-lowerRight.height()-margin_ver-text_height, text_width, text_height, Qt.TextWordWrap, text_upper)
painter.end()
def _fetch_marvin_cover(border_width=0):
'''
Retrieve LargeCoverJpg from cache
'''
#self._log_location('border_width: {0}'.format(border_width))
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if border_width:
# Construct a QPixmap with oversized yellow background
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - border_width * 2,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width() + border_width * 2,
m_image.height() + border_width * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(), self.MISMATCH_COLOR)
m_painter.drawImage(border_width,
border_width,
m_image)
else:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(),
m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
def _populate_covers(self):
'''
Display calibre cover for both unless mismatch
'''
def _fetch_marvin_cover(with_border=False):
'''
Retrieve LargeCoverJpg from cache
'''
self._log_location()
con = sqlite3.connect(self.marvin_db_path)
with con:
con.row_factory = sqlite3.Row
# Fetch Hash from mainDb
cover_cur = con.cursor()
cover_cur.execute('''SELECT
Hash
FROM Books
WHERE ID = '{0}'
'''.format(self.book_id))
row = cover_cur.fetchone()
book_hash = row[b'Hash']
large_covers_subpath = self.connected_device._cover_subpath(
size="large")
cover_path = '/'.join([large_covers_subpath, '%s.jpg' % book_hash])
stats = self.parent.ios.exists(cover_path)
if stats:
self._log("fetching large cover from cache")
#self._log("cover size: {:,} bytes".format(int(stats['st_size'])))
cover_bytes = self.parent.ios.read(cover_path, mode='rb')
m_image = QImage()
m_image.loadFromData(cover_bytes)
if with_border:
m_image = m_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.m_pixmap = QPixmap(
QSize(m_image.width() + self.BORDER_WIDTH * 2,
m_image.height() + self.BORDER_WIDTH * 2))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.fillRect(self.m_pixmap.rect(),
QColor(0xFD, 0xFF, 0x99))
m_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH,
m_image)
else:
m_image = m_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.m_pixmap = QPixmap(
QSize(m_image.width(), m_image.height()))
m_painter = QPainter(self.m_pixmap)
m_painter.setRenderHints(m_painter.Antialiasing)
m_painter.drawImage(0, 0, m_image)
self.marvin_cover.setPixmap(self.m_pixmap)
else:
# No cover available, use generic
self._log("No cached cover, using generic")
pixmap = QPixmap()
pixmap.load(I('book.png'))
pixmap = pixmap.scaled(self.COVER_ICON_SIZE,
self.COVER_ICON_SIZE,
aspectRatioMode=Qt.KeepAspectRatio,
transformMode=Qt.SmoothTransformation)
self.marvin_cover.setPixmap(pixmap)
self.calibre_cover.setMaximumSize(
QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.calibre_cover.setText('')
self.calibre_cover.setScaledContents(False)
self.marvin_cover.setMaximumSize(
QSize(self.COVER_ICON_SIZE, self.COVER_ICON_SIZE))
self.marvin_cover.setText('')
self.marvin_cover.setScaledContents(False)
if self.cid:
db = self.opts.gui.current_db
if 'cover_hash' not in self.mismatches:
mi = db.get_metadata(self.cid,
index_is_id=True,
get_cover=True,
cover_as_data=True)
c_image = QImage()
if mi.has_cover:
c_image.loadFromData(mi.cover_data[1])
c_image = c_image.scaledToHeight(self.COVER_ICON_SIZE,
Qt.SmoothTransformation)
self.c_pixmap = QPixmap(
QSize(c_image.width(), c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.drawImage(0, 0, c_image)
else:
c_image.load(I('book.png'))
c_image = c_image.scaledToWidth(135,
Qt.SmoothTransformation)
# Construct a QPixmap with dialog background
self.c_pixmap = QPixmap(
QSize(c_image.width(), c_image.height()))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
bgcolor = self.palette().color(QPalette.Background)
c_painter.fillRect(self.c_pixmap.rect(), bgcolor)
c_painter.drawImage(0, 0, c_image)
# Set calibre cover
self.calibre_cover.setPixmap(self.c_pixmap)
if self.opts.prefs.get('development_mode', False):
# Show individual covers
_fetch_marvin_cover()
else:
# Show calibre cover on both sides
self.marvin_cover.setPixmap(self.c_pixmap)
else:
# Covers don't match - render with border
# Construct a QImage with the cover sized to fit inside border
c_image = QImage()
cdata = db.cover(self.cid, index_is_id=True)
if cdata is None:
c_image.load(I('book.png'))
else:
c_image.loadFromData(cdata)
c_image = c_image.scaledToHeight(
self.COVER_ICON_SIZE - self.BORDER_WIDTH * 2,
Qt.SmoothTransformation)
# Construct a QPixmap with yellow background
self.c_pixmap = QPixmap(
QSize(c_image.width() + self.BORDER_WIDTH * 2,
c_image.height() + self.BORDER_WIDTH * 2))
c_painter = QPainter(self.c_pixmap)
c_painter.setRenderHints(c_painter.Antialiasing)
c_painter.fillRect(self.c_pixmap.rect(),
QColor(0xFD, 0xFF, 0x99))
c_painter.drawImage(self.BORDER_WIDTH, self.BORDER_WIDTH,
c_image)
self.calibre_cover.setPixmap(self.c_pixmap)
_fetch_marvin_cover(with_border=True)
else:
_fetch_marvin_cover()
def add_image(self, img, cache_key):
ref = self.get_image(cache_key)
if ref is not None:
return ref
fmt = img.format()
image = QImage(img)
if (image.depth() == 1 and img.colorTable().size() == 2 and
img.colorTable().at(0) == QColor(Qt.black).rgba() and
img.colorTable().at(1) == QColor(Qt.white).rgba()):
if fmt == QImage.Format_MonoLSB:
image = image.convertToFormat(QImage.Format_Mono)
fmt = QImage.Format_Mono
else:
if (fmt != QImage.Format_RGB32 and fmt != QImage.Format_ARGB32):
image = image.convertToFormat(QImage.Format_ARGB32)
fmt = QImage.Format_ARGB32
w = image.width()
h = image.height()
d = image.depth()
if fmt == QImage.Format_Mono:
bytes_per_line = (w + 7) >> 3
data = image.constBits().asstring(bytes_per_line * h)
return self.write_image(data, w, h, d, cache_key=cache_key)
ba = QByteArray()
buf = QBuffer(ba)
image.save(buf, 'jpeg', 94)
data = bytes(ba.data())
has_alpha = has_mask = False
soft_mask = mask = None
if fmt == QImage.Format_ARGB32:
tmask = image.constBits().asstring(4*w*h)[self.alpha_bit::4]
sdata = bytearray(tmask)
vals = set(sdata)
vals.discard(255)
has_mask = bool(vals)
vals.discard(0)
has_alpha = bool(vals)
if has_alpha:
soft_mask = self.write_image(tmask, w, h, 8)
elif has_mask:
# dither the soft mask to 1bit and add it. This also helps PDF
# viewers without transparency support
bytes_per_line = (w + 7) >> 3
mdata = bytearray(0 for i in xrange(bytes_per_line * h))
spos = mpos = 0
for y in xrange(h):
for x in xrange(w):
if sdata[spos]:
mdata[mpos + x>>3] |= (0x80 >> (x&7))
spos += 1
mpos += bytes_per_line
mdata = bytes(mdata)
mask = self.write_image(mdata, w, h, 1)
return self.write_image(data, w, h, 32, mask=mask, dct=True,
soft_mask=soft_mask, cache_key=cache_key)
def add_image(self, img, cache_key):
ref = self.get_image(cache_key)
if ref is not None:
return ref
fmt = img.format()
image = QImage(img)
if (image.depth() == 1 and img.colorTable().size() == 2
and img.colorTable().at(0) == QColor(Qt.black).rgba()
and img.colorTable().at(1) == QColor(Qt.white).rgba()):
if fmt == QImage.Format_MonoLSB:
image = image.convertToFormat(QImage.Format_Mono)
fmt = QImage.Format_Mono
else:
if (fmt != QImage.Format_RGB32 and fmt != QImage.Format_ARGB32):
image = image.convertToFormat(QImage.Format_ARGB32)
fmt = QImage.Format_ARGB32
w = image.width()
h = image.height()
d = image.depth()
if fmt == QImage.Format_Mono:
bytes_per_line = (w + 7) >> 3
data = image.constBits().asstring(bytes_per_line * h)
return self.write_image(data, w, h, d, cache_key=cache_key)
ba = QByteArray()
buf = QBuffer(ba)
image.save(buf, 'jpeg', 94)
data = bytes(ba.data())
has_alpha = has_mask = False
soft_mask = mask = None
if fmt == QImage.Format_ARGB32:
tmask = image.constBits().asstring(4 * w * h)[self.alpha_bit::4]
sdata = bytearray(tmask)
vals = set(sdata)
vals.discard(255)
has_mask = bool(vals)
vals.discard(0)
has_alpha = bool(vals)
if has_alpha:
soft_mask = self.write_image(tmask, w, h, 8)
elif has_mask:
# dither the soft mask to 1bit and add it. This also helps PDF
# viewers without transparency support
bytes_per_line = (w + 7) >> 3
mdata = bytearray(0 for i in xrange(bytes_per_line * h))
spos = mpos = 0
for y in xrange(h):
for x in xrange(w):
if sdata[spos]:
mdata[mpos + x >> 3] |= (0x80 >> (x & 7))
spos += 1
mpos += bytes_per_line
mdata = bytes(mdata)
mask = self.write_image(mdata, w, h, 1)
return self.write_image(data,
w,
h,
32,
mask=mask,
dct=True,
soft_mask=soft_mask,
cache_key=cache_key)