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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
import time
import glob
from threading import Thread
from threading import enumerate
from PyQt4 import QtCore, QtGui
class Ui_MainWindow(object):
def setupUi(self, MainWindow):
MainWindow.resize(900, 600)
MainWindow.setWindowTitle
self.centralwidget = QtGui.QWidget(MainWindow)
self.gridLayout = QtGui.QGridLayout(self.centralwidget)
self.verticalLayout = QtGui.QVBoxLayout()
self.scene = QtGui.QGraphicsScene()
self.view = QtGui.QGraphicsView(self.scene)
self.verticalLayout.addWidget(self.view)
self.horizontalLayout = QtGui.QHBoxLayout()
self.toolButton_3 = QtGui.QToolButton(self.centralwidget)
self.toolButton_3.setText("Preview")
self.toolButton_3.setIconSize(QtCore.QSize(48, 24))
self.toolButton_3.setAutoRaise(True)
self.horizontalLayout.addWidget(self.toolButton_3)
self.toolButton_4 = QtGui.QToolButton(self.centralwidget)
self.toolButton_4.setText("Next")
self.toolButton_4.setIconSize(QtCore.QSize(48, 24))
self.toolButton_4.setAutoRaise(True)
self.horizontalLayout.addWidget(self.toolButton_4)
self.toolButton_6 = QtGui.QToolButton(self.centralwidget)
self.toolButton_6.setText("Quit")
self.horizontalLayout.addWidget(self.toolButton_6)
self.verticalLayout.addLayout(self.horizontalLayout)
self.gridLayout.addLayout(self.verticalLayout, 0, 0, 1, 1)
MainWindow.setCentralWidget(self.centralwidget)
self.menubar = QtGui.QMenuBar(MainWindow)
self.menubar.setGeometry(QtCore.QRect(0, 0, 678, 25))
MainWindow.setMenuBar(self.menubar)
self.statusbar = QtGui.QStatusBar(MainWindow)
MainWindow.setStatusBar(self.statusbar)
MainWindow.show()
#QtCore.QCoreApplication.processEvents()
QtCore.QObject.connect(ui.toolButton_3,
QtCore.SIGNAL("clicked()"), self.prec)
QtCore.QObject.connect(ui.toolButton_4,
QtCore.SIGNAL("clicked()"), self.next)
QtCore.QObject.connect(ui.toolButton_6,
QtCore.SIGNAL("clicked()"), exit)
QtCore.QMetaObject.connectSlotsByName(MainWindow)
ui.scene.wheelEvent = self.wheel_event
self.set_view()
def set_view(self):
in_folder = "/chemin/vers/un/dossier"
self.th_list = []
self.w_thumb = []
print "chargement ..."
chain = in_folder + "/*"
self.images = glob.glob(chain)
self.images.sort(cmp=lambda x, y: cmp(x.lower(), y.lower()))
self.zoom_step = 0.04
self.w_vsize = self.view.size().width()
self.h_vsize = self.view.size().height()
if self.w_vsize <= self.h_vsize:
self.max_vsize = self.w_vsize
else:
self.max_vsize = self.h_vsize
self.l_pix = ["", "", ""]
self.i_pointer = 0
self.p_pointer = 0
self.load_current()
self.p_pointer = 1
self.load_next()
self.p_pointer = 2
self.load_prec()
self.p_pointer = 0
self.scene.setFocus()
def next(self):
print "next"
self.i_pointer += 1
if self.i_pointer == len(self.images):
self.i_pointer = 0
self.p_view = self.c_view
self.c_view = self.n_view
self.view_current()
if self.p_pointer == 0:
self.p_pointer = 2
self.load_next()
self.p_pointer = 1
elif self.p_pointer == 1:
self.p_pointer = 0
self.load_next()
self.p_pointer = 2
else:
self.p_pointer = 1
self.load_next()
self.p_pointer = 0
def prec(self):
print "prec"
self.i_pointer -= 1
if self.i_pointer <= 0:
self.i_pointer = len(self.images)-1
self.n_view = self.c_view
self.c_view = self.p_view
self.view_current()
if self.p_pointer == 0:
self.p_pointer = 1
self.load_prec()
self.p_pointer = 2
elif self.p_pointer == 1:
self.p_pointer = 2
self.load_prec()
self.p_pointer = 0
else:
self.p_pointer = 0
self.load_prec()
self.p_pointer = 1
def view_current(self):
size_img = self.c_view.size()
wth, hgt = QtCore.QSize.width(size_img), QtCore.QSize.height(size_img)
self.scene.clear()
self.scene.setSceneRect(0, 0, wth, hgt)
self.scene.addPixmap(self.c_view)
QtCore.QCoreApplication.processEvents()
def load_current(self):
self.l_pix[self.p_pointer] = QtGui.QPixmap(self.images[self.i_pointer])
self.c_view = self.l_pix[self.p_pointer].scaled(self.max_vsize,
self.max_vsize,
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation)
self.view_current()
def load_next(self):
if self.i_pointer == len(self.images)-1:
p = 0
else:
p = self.i_pointer + 1
self.l_pix[self.p_pointer] = QtGui.QPixmap(self.images[p])
self.n_view = self.l_pix[self.p_pointer].scaled(self.max_vsize,
self.max_vsize,
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation)
def load_prec(self):
if self.i_pointer == 0:
p = len(self.images)-1
else:
p = self.i_pointer - 1
self.l_pix[self.p_pointer] = QtGui.QPixmap(self.images[p])
self.p_view = self.l_pix[self.p_pointer].scaled(self.max_vsize,
self.max_vsize,
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.SmoothTransformation)
def wheel_event (self, event):
numDegrees = event.delta() / 8
numSteps = numDegrees / 15.0
self.zoom(numSteps)
event.accept()
def zoom(self, step):
self.scene.clear()
w = self.c_view.size().width()
h = self.c_view.size().height()
w, h = w * (1 + self.zoom_step*step), h * (1 + self.zoom_step*step)
self.c_view = self.l_pix[self.p_pointer].scaled(w, h,
QtCore.Qt.KeepAspectRatio,
QtCore.Qt.FastTransformation)
self.view_current()
if __name__ == "__main__":
import sys
app = QtGui.QApplication(sys.argv)
MainWindow = QtGui.QMainWindow()
ui = Ui_MainWindow()
ui.setupUi(MainWindow)
MainWindow.show()
sys.exit(app.exec_()) |