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=begin
This class serves as the main window for %{APPNAME}. It handles the
menus, toolbars, and status bars.
@short Main window class
@author %{AUTHOR} <%{EMAIL}>
@version %{VERSION}
=end
class %{APPNAMESC} < KDE::MainWindow
Q_SLOTS 'fileNew()',
'fileOpen()',
'fileSave()',
'fileSaveAs()',
'filePrint()',
'optionsPreferences()',
'changeStatusbar(const QString&)',
'changeCaption(const QString&)'
def initialize()
super( nil, "%{APPNAMESC}" )
@view = %{APPNAMESC}View.new(self)
@printer = nil
# accept dnd
setAcceptDrops(true)
# tell the KDE::MainWindow that this is indeed the main widget
setCentralWidget(@view)
# then, setup our actions
setupActions()
# and a status bar
statusBar().show()
# Apply the create the main window and ask the mainwindow to
# automatically save settings if changed: window size, toolbar
# position, icon size, etc. Also to add actions for the statusbar
# toolbar, and keybindings if necessary.
setupGUI();
# allow the view to change the statusbar and caption
connect(@view, SIGNAL('signalChangeStatusbar(const QString&)'),
self, SLOT('changeStatusbar(const QString&)'))
connect(@view, SIGNAL('signalChangeCaption(const QString&)'),
self, SLOT('changeCaption(const QString&)'))
end
def load(url)
target = ""
# the below code is what you should normally do. in this
# example when, we want the url to our own. you probably
# want to use this code instead for your app
if false
# download the contents
if KIO::NetAccess.download(url, target, self)
# set our caption
setCaption(url.url)
# load in the file (target is always local)
@view.openURL(KDE::URL.new(target))
# and remove the temp file
KIO::NetAccess.removeTempFile(target)
end
end
setCaption(url.prettyURL())
@view.openURL(url)
end
def setupActions()
KDE::StdAction.openNew(self, SLOT('fileNew()'), actionCollection())
KDE::StdAction.open(self, SLOT('fileOpen()'), actionCollection())
KDE::StdAction.save(self, SLOT('fileSave()'), actionCollection())
KDE::StdAction.saveAs(self, SLOT('fileSaveAs()'), actionCollection())
KDE::StdAction.print(self, SLOT('filePrint()'), actionCollection())
KDE::StdAction.quit($kapp, SLOT('quit()'), actionCollection())
KDE::StdAction.preferences(self, SLOT('optionsPreferences()'), actionCollection())
# this doesn't do anything useful. it's just here to illustrate
# how to insert a custom menu and menu item
custom = KDE::Action.new(i18n("Cus&tom Menuitem"), KDE::Shortcut.new(),
self, SLOT('optionsPreferences()'),
actionCollection(), "custom_action")
end
def saveProperties(config)
# the 'config' object points to the session managed
# config file. anything you write here will be available
# later when this app is restored
if !@view.currentURL().empty?
config.writeEntry("lastURL", @view.currentURL())
end
end
def readProperties(config)
# the 'config' object points to the session managed
# config file. This function is automatically called whenever
# the app is being restored. read in here whatever you wrote
# in 'saveProperties'
url = config.readPathEntry("lastURL")
if !url.empty?
@view.openURL(KDE::URL.new(url))
end
end
def dragEnterEvent(event)
# accept uri drops only
event.accept(KDE::URLDrag.canDecode(event))
end
def dropEvent(event)
# This is a very simplistic implementation of a drop event. we
# will only accept a dropped URL. the Qt dnd code can do *much*
# much more, so please read the docs there
urls = []
# see if we can decode a URI.. if not, just ignore it
if KDE::URLDrag.decode(event, urls) && !urls.empty?
# okay, we have a URI.. process it
url = urls.shift
# load in the file
load(url)
end
end
def fileNew()
# This slot is called whenever the File.New menu is selected,
# the New shortcut is pressed (usually CTRL+N) or the New toolbar
# button is clicked
# create a new window
%{APPNAMESC}.new.show()
end
def fileOpen()
# This slot is called whenever the File.Open menu is selected,
# the Open shortcut is pressed (usually CTRL+O) or the Open toolbar
# button is clicked
# This brings up the generic open dialog
url = KDE::URLRequesterDlg.getURL(nil, self, i18n("Open Location") )
# standard filedialog
url = KDE::FileDialog.getOpenURL(nil, nil, self, i18n("Open Location"))
if !url.empty?
@view.openURL(url)
end
end
def fileSave()
# This slot is called whenever the File.Save menu is selected,
# the Save shortcut is pressed (usually CTRL+S) or the Save toolbar
# button is clicked
# save the current file
end
def fileSaveAs()
# This slot is called whenever the File.Save As menu is selected,
file_url = KDE::FileDialog.getSaveURL()
if !file_url.empty? && file_url.valid?
# save your info, here
end
end
def filePrint()
# This slot is called whenever the File.Print menu is selected,
# the Print shortcut is pressed (usually CTRL+P) or the Print toolbar
# button is clicked
if @printer.nil? then @printer = KDE::Printer.new end
if @printer.setup(self)
# setup the printer. with Qt, you always "print" to a
# Qt::Painter.. whether the output medium is a pixmap, a screen,
# or paper
p = Qt::Painter.new
p.begin(@printer)
# we let our view do the actual printing
metrics = Qt::PaintDeviceMetrics.new(@printer)
@view.print(p, metrics.height(), metrics.width())
# and send the result to the printer
p.end()
end
end
def optionsPreferences()
# popup some sort of preference dialog, here
dlg = %{APPNAMESC}Preferences.new
if dlg.exec()
# redo your settings
end
end
def changeStatusbar(text)
# display the text on the statusbar
statusBar().message(text)
end
def changeCaption(text)
# display the text on the caption
setCaption(text)
end
end
|
