def start_presentation(self):
"""
Starts a presentation from the beginning.
"""
log.debug('start_presentation')
# SlideShowWindow measures its size/position by points, not pixels
# https://technet.microsoft.com/en-us/library/dn528846.aspx
try:
dpi = win32ui.GetActiveWindow().GetDC().GetDeviceCaps(88)
except win32ui.error:
try:
dpi = win32ui.GetForegroundWindow().GetDC().GetDeviceCaps(
88)
except win32ui.error:
dpi = 96
size = ScreenList().current.display_geometry
ppt_window = None
try:
# Disable the presentation console
self.presentation.SlideShowSettings.ShowPresenterView = 0
# Start the presentation
ppt_window = self.presentation.SlideShowSettings.Run()
except (AttributeError, pywintypes.com_error):
log.exception('Caught exception while in start_presentation')
trace_error_handler(log)
self.show_error_msg()
if ppt_window and not Registry().get('settings').value(
'presentations/powerpoint control window'):
try:
ppt_window.Top = size.y() * 72 / dpi
ppt_window.Height = size.height() * 72 / dpi
ppt_window.Left = size.x() * 72 / dpi
ppt_window.Width = size.width() * 72 / dpi
except AttributeError:
log.exception('AttributeError while in start_presentation')
# Find the presentation window and save the handle for later
self.presentation_hwnd = None
if ppt_window:
log.debug('main display size: y={y:d}, height={height:d}, '
'x={x:d}, width={width:d}'.format(
y=size.y(),
height=size.height(),
x=size.x(),
width=size.width()))
try:
win32gui.EnumWindows(self._window_enum_callback, size)
except pywintypes.error:
# When _window_enum_callback returns False to stop the enumeration (looping over open windows)
# it causes an exception that is ignored here
pass
# Make sure powerpoint doesn't steal focus, unless we're on a single screen setup
if len(ScreenList()) > 1:
Registry().get('main_window').activateWindow()
def load_presentation(self):
"""
Called when a presentation is added to the SlideController. It generates images from the PDF.
:return: True is loading succeeded, otherwise False.
"""
log.debug('load_presentation pdf')
temp_dir_path = self.get_temp_folder()
# Check if the images has already been created, and if yes load them
if (temp_dir_path / 'mainslide001.png').is_file():
created_files = sorted(temp_dir_path.glob('*'))
for image_path in created_files:
if image_path.is_file():
self.image_files.append(image_path)
self.num_pages = len(self.image_files)
return True
size = ScreenList().current.display_geometry
# Generate images from PDF that will fit the frame.
runlog = ''
try:
if not temp_dir_path.is_dir():
temp_dir_path.mkdir(parents=True)
# The %03d in the file name is handled by each binary
if self.controller.mudrawbin:
log.debug('loading presentation using mudraw')
runlog = check_output([
str(self.controller.mudrawbin), '-w',
str(size.width()), '-h',
str(size.height()), '-o',
str(temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
elif self.controller.mutoolbin:
log.debug('loading presentation using mutool')
runlog = check_output([
str(self.controller.mutoolbin), 'draw', '-w',
str(size.width()), '-h',
str(size.height()), '-o',
str(temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
elif self.controller.gsbin:
log.debug('loading presentation using gs')
resolution = self.gs_get_resolution(size)
runlog = check_output([
str(self.controller.gsbin), '-dSAFER', '-dNOPAUSE',
'-dBATCH', '-sDEVICE=png16m',
'-r{res}'.format(res=resolution), '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-sOutputFile={output}'.format(
output=temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
elif PYMUPDF_AVAILABLE:
log.debug('loading presentation using PyMuPDF')
pdf = fitz.open(str(self.file_path))
for i, page in enumerate(pdf, start=1):
src_size = page.bound().round()
# keep aspect ratio
scale = min(size.width() / src_size.width,
size.height() / src_size.height)
m = fitz.Matrix(scale, scale)
page.getPixmap(m, alpha=False).writeImage(
str(temp_dir_path / 'mainslide{:03d}.png'.format(i)))
pdf.close()
created_files = sorted(temp_dir_path.glob('*'))
for image_path in created_files:
if image_path.is_file():
self.image_files.append(image_path)
except Exception:
log.exception(runlog)
return False
self.num_pages = len(self.image_files)
# Create thumbnails
self.create_thumbnails()
return True
def set_default_header(self):
current_screen_geometry = ScreenList().current.display_geometry
self.font_main_x = 10
self.font_main_y = 0
self.font_main_width = current_screen_geometry.width() - 20
self.font_main_height = current_screen_geometry.height() * 9 / 10
def set_default_footer(self):
current_screen_geometry = ScreenList().current.display_geometry
self.font_footer_x = 10
self.font_footer_y = current_screen_geometry.height() * 9 / 10
self.font_footer_width = current_screen_geometry.width() - 20
self.font_footer_height = current_screen_geometry.height() / 10
def load_presentation(self):
"""
Called when a presentation is added to the SlideController. It generates images from the PDF.
:return: True is loading succeeded, otherwise False.
"""
log.debug('load_presentation pdf')
temp_dir_path = self.get_temp_folder()
# Check if the images has already been created, and if yes load them
if (temp_dir_path / 'mainslide001.png').is_file():
created_files = sorted(temp_dir_path.glob('*'))
for image_path in created_files:
if image_path.is_file():
self.image_files.append(image_path)
self.num_pages = len(self.image_files)
return True
size = ScreenList().current['size']
# Generate images from PDF that will fit the frame.
runlog = ''
try:
if not temp_dir_path.is_dir():
temp_dir_path.mkdir(parents=True)
# The %03d in the file name is handled by each binary
if self.controller.mudrawbin:
log.debug('loading presentation using mudraw')
runlog = check_output([
str(self.controller.mudrawbin), '-w',
str(size.width()), '-h',
str(size.height()), '-o',
str(temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
elif self.controller.mutoolbin:
log.debug('loading presentation using mutool')
runlog = check_output([
str(self.controller.mutoolbin), 'draw', '-w',
str(size.width()), '-h',
str(size.height()), '-o',
str(temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
elif self.controller.gsbin:
log.debug('loading presentation using gs')
resolution = self.gs_get_resolution(size)
runlog = check_output([
str(self.controller.gsbin), '-dSAFER', '-dNOPAUSE',
'-dBATCH', '-sDEVICE=png16m',
'-r{res}'.format(res=resolution), '-dTextAlphaBits=4',
'-dGraphicsAlphaBits=4', '-sOutputFile={output}'.format(
output=temp_dir_path / 'mainslide%03d.png'),
str(self.file_path)
],
startupinfo=self.startupinfo)
created_files = sorted(temp_dir_path.glob('*'))
for image_path in created_files:
if image_path.is_file():
self.image_files.append(image_path)
except Exception as e:
log.exception(runlog)
return False
self.num_pages = len(self.image_files)
# Create thumbnails
self.create_thumbnails()
return True