comictagger/pagebrowser.py
beville@gmail.com 61a852b874 Enforced page limits with button disabling
git-svn-id: http://comictagger.googlecode.com/svn/trunk@37 6c5673fe-1810-88d6-992b-cd32ca31540c
2012-11-15 01:40:05 +00:00

114 lines
3.2 KiB
Python

"""
A PyQT4 dialog to show pages of a comic archive
"""
"""
Copyright 2012 Anthony Beville
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
import sys
from PyQt4 import QtCore, QtGui, uic
import os
from settings import ComicTaggerSettings
class PageBrowserWindow(QtGui.QDialog):
def __init__(self, parent):
super(PageBrowserWindow, self).__init__(None)
uic.loadUi(os.path.join(ComicTaggerSettings.baseDir(), 'pagebrowser.ui' ), self)
self.lblPage.setPixmap(QtGui.QPixmap(os.path.join(ComicTaggerSettings.baseDir(), 'nocover.png' )))
self.lblPage.setSizePolicy(QtGui.QSizePolicy.Ignored, QtGui.QSizePolicy.Ignored)
self.comic_archive = None
self.current_pixmap = None
self.page_count = 0
self.current_page_num = 0
self.btnNext.clicked.connect( self.nextPage )
self.btnPrev.clicked.connect( self.prevPage )
self.show()
self.btnNext.setEnabled( False )
self.btnPrev.setEnabled( False )
def setComicArchive(self, ca):
self.comic_archive = ca
self.page_count = ca.getNumberOfPages()
self.current_page_num = 0
self.setPage()
def nextPage(self):
if self.current_page_num + 1 < self.page_count:
self.current_page_num += 1
self.setPage()
def prevPage(self):
if self.current_page_num - 1 >= 0:
self.current_page_num -= 1
self.setPage()
def setPage( self ):
image_data = self.comic_archive.getPage( self.current_page_num )
if image_data is not None:
self.setCurrentPixmap( image_data )
self.setDisplayPixmap( 0, 0)
self.setWindowTitle("Page Browser - Page {0} (of {1}) ".format(self.current_page_num+1, self.page_count ) )
if self.current_page_num + 1 < self.page_count:
self.btnNext.setEnabled( True )
else:
self.btnNext.setEnabled( False )
if self.current_page_num - 1 >= 0:
self.btnPrev.setEnabled( True )
else:
self.btnPrev.setEnabled( False )
def setCurrentPixmap( self, image_data ):
if image_data is not None:
img = QtGui.QImage()
img.loadFromData( image_data )
self.current_pixmap = QtGui.QPixmap(QtGui.QPixmap(img))
def resizeEvent( self, resize_event ):
if self.current_pixmap is not None:
delta_w = resize_event.size().width() - resize_event.oldSize().width()
delta_h = resize_event.size().height() - resize_event.oldSize().height()
self.setDisplayPixmap( delta_w , delta_h )
def setDisplayPixmap( self, delta_w , delta_h ):
# the deltas let us know what the new width and height of the label will be
new_h = self.lblPage.height() + delta_h
new_w = self.lblPage.width() + delta_w
if new_h < 0:
new_h = 0;
if new_w < 0:
new_w = 0;
scaled_pixmap = self.current_pixmap.scaled(new_w, new_h, QtCore.Qt.KeepAspectRatio)
self.lblPage.setPixmap( scaled_pixmap )