#!/usr/bin/env python
# A simple application.
import sys, string
from qt import *
fileopen = [
'16 13 5 1',
'. c #040404',
'# c #808304',
'a c None',
'b c #f3f704',
'c c #f3f7f3',
'aaaaaaaaa...aaaa',
'aaaaaaaa.aaa.a.a',
'aaaaaaaaaaaaa..a',
'a...aaaaaaaa...a',
'.bcb.......aaaaa',
'.cbcbcbcbc.aaaaa',
'.bcbcbcbcb.aaaaa',
'.cbcb...........',
'.bcb.#########.a',
'.cb.#########.aa',
'.b.#########.aaa',
'..#########.aaaa',
'...........aaaaa'
]
filesave = [
'14 14 4 1',
'. c #040404',
'# c #808304',
'a c #bfc2bf',
'b c None',
'..............',
'.#.aaaaaaaa.a.',
'.#.aaaaaaaa...',
'.#.aaaaaaaa.#.',
'.#.aaaaaaaa.#.',
'.#.aaaaaaaa.#.',
'.#.aaaaaaaa.#.',
'.##........##.',
'.############.',
'.##.........#.',
'.##......aa.#.',
'.##......aa.#.',
'.##......aa.#.',
'b.............'
]
fileprint = [
'16 14 6 1',
'. c #000000',
'# c #848284',
'a c #c6c3c6',
'b c #ffff00',
'c c #ffffff',
'd c None',
'ddddd.........dd',
'dddd.cccccccc.dd',
'dddd.c.....c.ddd',
'ddd.cccccccc.ddd',
'ddd.c.....c....d',
'dd.cccccccc.a.a.',
'd..........a.a..',
'.aaaaaaaaaa.a.a.',
'.............aa.',
'.aaaaaa###aa.a.d',
'.aaaaaabbbaa...d',
'.............a.d',
'd.aaaaaaaaa.a.dd',
'dd...........ddd'
]
fileOpenText = \
'''![]()
Click this button to open a new file.
You can also select the Open command from the File menu.'''
fileSaveText = \
'''Click this button to save the file you are editing.
You will be prompted for a filename.
You can also select the Save command from the File menu.'''
filePrintText = \
'''Click this button to print the file you are editing.
You can also select the Print command from the File menu.'''
editorList = []
class ApplicationWindow(QMainWindow):
def __init__(self):
QMainWindow.__init__(self,None,'example application main window',Qt.WDestructiveClose)
self.filename = QString.null
self.printer = QPrinter()
self.fileTools = QToolBar(self,'file operations')
openIcon = QPixmap(fileopen)
self.fileOpen = QToolButton(openIcon,'Open File',QString.null,self.load,self.fileTools,'open file')
saveIcon = QPixmap(filesave)
self.fileSave = QToolButton(saveIcon,'Save File',QString.null,self.save,self.fileTools,'save file')
printIcon = QPixmap(fileprint)
self.filePrint = QToolButton(printIcon,'Print File',QString.null,self.printDoc,self.fileTools,'print file')
QWhatsThis.whatsThisButton(self.fileTools)
QWhatsThis.add(self.fileOpen,fileOpenText)
QMimeSourceFactory.defaultFactory().setPixmap('fileopen',openIcon)
QWhatsThis.add(self.fileSave,fileSaveText)
QWhatsThis.add(self.filePrint,filePrintText)
self.file = QPopupMenu(self)
self.menuBar().insertItem('&File',self.file)
self.file.insertItem('&New',self.newDoc,Qt.CTRL + Qt.Key_N)
id = self.file.insertItem(QIconSet(openIcon),'&Open',self.load,Qt.CTRL + Qt.Key_O)
self.file.setWhatsThis(id,fileOpenText)
id = self.file.insertItem(QIconSet(saveIcon),'&Save',self.save,Qt.CTRL + Qt.Key_S)
self.file.setWhatsThis(id,fileSaveText)
id = self.file.insertItem('Save &as',self.saveAs)
self.file.setWhatsThis(id,fileSaveText)
self.file.insertSeparator()
id = self.file.insertItem(QIconSet(printIcon),'&Print',self.printDoc,Qt.CTRL + Qt.Key_P)
self.file.setWhatsThis(id,filePrintText)
self.file.insertSeparator()
self.file.insertItem('&Close',self,SLOT('close()'),Qt.CTRL + Qt.Key_W)
self.file.insertItem('&Quit',qApp,SLOT('closeAllWindows()'),Qt.CTRL + Qt.Key_Q)
self.help = QPopupMenu(self)
self.menuBar().insertSeparator()
self.menuBar().insertItem('&Help',self.help)
self.help.insertItem('&About',self.about,Qt.Key_F1)
self.help.insertItem('About &Qt',self.aboutQt)
self.e = QMultiLineEdit(self,'editor')
self.e.setFocus()
self.setCentralWidget(self.e)
self.statusBar().message('Ready',2000)
self.resize(450,600)
def newDoc(self):
ed = ApplicationWindow()
ed.show()
editorList.append(ed)
def load(self):
fn = QFileDialog.getOpenFileName(QString.null,QString.null,self)
if fn.isEmpty():
self.statusBar().message('Loading aborted',2000)
return
fileName = str(fn)
self.e.setAutoUpdate(0)
self.e.clear()
try:
f = open(fileName,'r')
except:
return
for l in f.readlines():
self.e.append(string.rstrip(l))
f.close()
self.e.setAutoUpdate(1)
self.e.repaint()
self.e.setEdited(0)
self.setCaption(fileName)
self.statusBar().message('Loaded document %s' % (fileName),2000)
def save(self):
if self.filename.isEmpty():
self.saveAs()
return
try:
f = open(str(self.filename),'w+')
except:
self.statusBar().message('Could not write to %s' % (self.filename),2000)
return
f.write(str(self.e.text()))
f.close()
self.e.setEdited(0)
self.setCaption(self.filename)
self.statusBar().message('File %s saved' % (self.filename),2000)
def saveAs(self):
fn = QFileDialog.getSaveFileName(QString.null,QString.null,self)
if not fn.isEmpty():
self.filename = fn
self.save()
else:
self.statusBar().message('Saving aborted',2000)
def printDoc(self):
Margin = 10
pageNo = 1
if self.printer.setup(self):
self.statusBar().message('Printing...')
p = QPainter()
p.begin(self.printer)
p.setFont(self.e.font())
yPos = 0
fm = p.fontMetrics()
metrics = QPaintDeviceMetrics(self.printer)
for i in range(self.e.numLines):
if Margin + yPos > metrics.height() - Margin:
pageNo = pageNo + 1
self.statusBar().message('Printing (page %d)...' % (pageNo))
self.printer.newPage()
yPos = 0
p.drawText(Margin,Margin + yPos,metrics.width(),fm.lineSpacing(),Qt.ExpandTabs | Qt.DontClip,self.e.textLine(i))
yPos = yPos + fm.lineSpacing()
p.end()
self.statusBar().message('Printing completed',2000)
else:
self.statusBar().message('Printing aborted',2000)
def closeEvent(self,ce):
if not self.e.edited():
ce.accept()
return
rc = QMessageBox.information(self,'Qt Application Example',
'The document has been changed since the last save.',
'Save Now','Cancel','Leave Anyway',0,1)
if rc == 0:
self.save()
ce.accept()
elif rc == 2:
ce.accept()
else:
ce.ignore()
def about(self):
QMessageBox.about(self,'Qt Application Example',
'This example demonstrates simple use of QMainWindow,\nQMenuBar and QToolBar.')
def aboutQt(self):
QMessageBox.aboutQt(self,'Qt Application Example')
a = QApplication(sys.argv)
mw = ApplicationWindow()
mw.setCaption('Document 1')
mw.show()
a.connect(a, SIGNAL('lastWindowClosed()'), a, SLOT('quit()'))
a.exec_loop()