class comics_project_page_viewer(QDialog):
pageIndex = 0
spread = True
def __init__(self):
super().__init__()
self.setModal(False)
self.setWindowTitle('Untitled')
self.setWindowFlags(Qt.WindowTitleHint | Qt.WindowMinimizeButtonHint
| Qt.WindowMaximizeButtonHint
| Qt.WindowCloseButtonHint)
self.resize(1024, 768)
self.setLayout(QVBoxLayout())
self.left_viewer = page_viewer()
self.left_viewer.align_right()
self.left_viewer.clicked.connect(self.prev_page)
self.right_viewer = page_viewer()
self.right_viewer.align_left()
self.right_viewer.clicked.connect(self.next_page)
self.single_viewer = page_viewer()
self.single_viewer.align_center()
self.single_viewer.clicked.connect(self.next_page)
self.single_viewer.hide()
self.page_layout = QHBoxLayout()
self.layout().addLayout(self.page_layout)
self.page_layout.addWidget(self.left_viewer)
self.page_layout.addWidget(self.right_viewer)
self.page_layout.addWidget(self.single_viewer)
# Keyboard shortcuts
self.home_shortcut = QShortcut('Home', self)
self.home_shortcut.activated.connect(self.first_page)
self.left_shortcut = QShortcut('Left', self)
self.left_shortcut.activated.connect(self.prev_page)
self.right_shortcut = QShortcut('Right', self)
self.right_shortcut.activated.connect(self.next_page)
self.space_shortcut = QShortcut('Space', self)
self.space_shortcut.activated.connect(self.next_page)
self.end_shortcut = QShortcut('End', self)
self.end_shortcut.activated.connect(self.last_page)
self.first_btn = QPushButton('First')
self.first_btn.clicked.connect(self.first_page)
self.prev_btn = QPushButton('Previous')
self.prev_btn.clicked.connect(self.prev_page)
self.spread_btn = QPushButton('Single Page')
self.spread_btn.clicked.connect(self.toggle_spread)
self.next_btn = QPushButton('Next')
self.next_btn.clicked.connect(self.next_page)
self.last_btn = QPushButton('Last')
self.last_btn.clicked.connect(self.last_page)
self.buttons_layout = QHBoxLayout()
self.layout().addLayout(self.buttons_layout)
self.buttons_layout.addWidget(self.first_btn)
self.buttons_layout.addWidget(self.prev_btn)
self.buttons_layout.addWidget(self.spread_btn)
self.buttons_layout.addWidget(self.next_btn)
self.buttons_layout.addWidget(self.last_btn)
def load_comic(self, path_to_config):
self.path_to_config = path_to_config
configFile = open(self.path_to_config,
"r",
newline="",
encoding="utf-16")
self.setupDictionary = json.load(configFile)
self.projecturl = os.path.dirname(str(self.path_to_config))
if 'readingDirection' in self.setupDictionary:
if self.setupDictionary['readingDirection'] == "leftToRight":
self.setLayoutDirection(Qt.LeftToRight)
self.left_shortcut.disconnect()
self.right_shortcut.disconnect()
self.left_shortcut.activated.connect(self.prev_page)
self.right_shortcut.activated.connect(self.next_page)
else:
self.left_shortcut.disconnect()
self.right_shortcut.disconnect()
self.setLayoutDirection(Qt.RightToLeft)
self.left_shortcut.activated.connect(self.next_page)
self.right_shortcut.activated.connect(self.prev_page)
else:
self.left_shortcut.disconnect()
self.right_shortcut.disconnect()
self.setLayoutDirection(Qt.LeftToRight)
self.left_shortcut.activated.connect(self.prev_page)
self.right_shortcut.activated.connect(self.next_page)
configFile.close()
def go_to_page_index(self, index):
if index >= 0 and index < len(self.setupDictionary['pages']):
self.pageIndex = index
else:
self.pageIndex = 0
self.flip_page()
def toggle_spread(self):
if self.spread:
self.spread = False
self.spread_btn.setText('Double Spread')
self.update_single_page(self.pageIndex)
self.left_viewer.hide()
self.right_viewer.hide()
self.single_viewer.show()
self.flip_page()
else:
self.spread = True
self.spread_btn.setText('Single Page')
self.left_viewer.show()
self.right_viewer.show()
self.single_viewer.hide()
self.flip_page()
def update_single_page(self, index):
image = self.get_mergedimage(index)
self.single_viewer.set_image(image)
def update_left_page(self, index):
image = self.get_mergedimage(index)
self.left_viewer.set_image(image)
def update_right_page(self, index):
image = self.get_mergedimage(index)
self.right_viewer.set_image(image)
def first_page(self):
self.pageIndex = 0
self.flip_page()
def prev_page(self):
if self.pageIndex <= 0:
self.pageIndex = len(self.setupDictionary['pages']) - 1
else:
if self.spread:
self.pageIndex -= 2
else:
self.pageIndex -= 1
self.flip_page()
def next_page(self):
if self.pageIndex >= len(self.setupDictionary['pages']) - 1:
self.pageIndex = 0
else:
if self.spread:
self.pageIndex += 2
else:
self.pageIndex += 1
self.flip_page()
def last_page(self):
self.pageIndex = len(self.setupDictionary['pages']) - 1
self.flip_page()
def flip_page(self):
if self.spread:
if self.pageIndex % 2 == 0: # Even/Left
left_page_number = self.pageIndex - 1
right_page_number = self.pageIndex
else: # Odd/Right
left_page_number = self.pageIndex
right_page_number = self.pageIndex + 1
self.update_left_page(left_page_number)
self.update_right_page(right_page_number)
if left_page_number < 0:
page_numbers = str(right_page_number + 1)
elif right_page_number >= len(self.setupDictionary['pages']):
page_numbers = str(left_page_number + 1)
else:
page_numbers = '{left} / {right}'.format(
left=str(left_page_number + 1),
right=str(right_page_number + 1))
self.setWindowTitle('{name} - {page_numbers}'.format(
name=self.setupDictionary['projectName'],
page_numbers=page_numbers))
else:
if self.pageIndex >= len(self.setupDictionary['pages']):
self.pageIndex = len(self.setupDictionary['pages']) - 1
if self.pageIndex < 0:
self.pageIndex = 0
self.update_single_page(self.pageIndex)
self.setWindowTitle('{name} - {page_numbers}'.format(
name=self.setupDictionary['projectName'],
page_numbers=str(self.pageIndex + 1)))
def get_mergedimage(self, index):
if index < len(self.setupDictionary['pages']) and index > -1:
image_url = os.path.join(self.projecturl,
self.setupDictionary['pages'][index])
if os.path.exists(image_url):
page = zipfile.ZipFile(image_url, "r")
image = QImage.fromData(page.read("mergedimage.png"))
page.close()
return image
image = QImage(QSize(10, 10), QImage.Format_ARGB32)
image.fill(Qt.GlobalColor(19))
return image
