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| - | In this part of the PyGTK programming tutorial, we will work with toolbars.
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| - | Menus group commands that we can use in application. Toolbars provide a quick access to the most frequently used commands.
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| - |
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| - | == Simple toolbar ==
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| - | Next we create a simple toolbar.
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| - | <source lang="python">
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| - | #!/usr/bin/python
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| - | # ZetCode PyGTK tutorial
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| - | #
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| - | # This example shows a toolbar
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| - | # widget
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| - | #
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| - | # author: jan bodnar
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| - | # website: zetcode.com
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| - | # last edited: February 2009
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| - |
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| - | import gtk
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| - |
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| - | class PyApp(gtk.Window):
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| - |
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| - | def __init__(self):
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| - | super(PyApp, self).__init__()
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| - |
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| - | self.set_title("Toolbar")
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| - | self.set_size_request(250, 200)
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| - | self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color(6400, 6400, 6440))
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| - | self.set_position(gtk.WIN_POS_CENTER)
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| - |
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| - | toolbar = gtk.Toolbar()
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| - | toolbar.set_style(gtk.TOOLBAR_ICONS)
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| - |
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| - | newtb = gtk.ToolButton(gtk.STOCK_NEW)
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| - | opentb = gtk.ToolButton(gtk.STOCK_OPEN)
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| - | savetb = gtk.ToolButton(gtk.STOCK_SAVE)
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| - | sep = gtk.SeparatorToolItem()
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| - | quittb = gtk.ToolButton(gtk.STOCK_QUIT)
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| - |
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| - | toolbar.insert(newtb, 0)
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| - | toolbar.insert(opentb, 1)
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| - | toolbar.insert(savetb, 2)
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| - | toolbar.insert(sep, 3)
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| - | toolbar.insert(quittb, 4)
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| - |
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| - | quittb.connect("clicked", gtk.main_quit)
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| - |
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| - | vbox = gtk.VBox(False, 2)
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| - | vbox.pack_start(toolbar, False, False, 0)
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| - |
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| - | self.add(vbox)
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| - | self.connect("destroy", gtk.main_quit)
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| - | self.show_all()
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| - | PyApp()
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| - | gtk.main()
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| - | </source>
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| - |
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| - | The example shows a toolbar and four tool buttons.
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| - |
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| - | <source lang="python">
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| - |
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| - | toolbar = gtk.Toolbar()
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| - | </source>
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| - |
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| - | A <b>Toolbar</b> widget is created.
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| - |
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| - | <source lang="python">
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| - | toolbar.set_style(gtk.TOOLBAR_ICONS)
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| - | </source>
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| - |
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| - | On toolbar, we show only icons. No text.
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| - |
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| - | <source lang="python">
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| - | newtb = gtk.ToolButton(gtk.STOCK_NEW)
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| - | </source>
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| - |
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| - | A <b>ToolButton</b> with an image from stock is created.
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| - | <source lang="python">
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| - | sep = gtk.SeparatorToolItem()
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| - |
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| - | </source>
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| - | This is a separator. It can be used to group toolbar buttons into logical groups.
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| - |
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| - | <source lang="python">
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| - | toolbar.insert(newtb, 0)
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| - | toolbar.insert(opentb, 1)
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| - | ...
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| - | </source>
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| - |
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| - | Toolbar buttons are inserted into the toolbar widget.
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| - |
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| - | [[image: pygtk_faq_toolbar.png | center]]
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| - |
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| - | == Toolbars ==
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| - | In the second example, we show two toolbars. Many applications have more than one toolbar. We show, how we can do it in PyGTK.
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| - | <source lang="python">
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| - | #!/usr/bin/python
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| - | # ZetCode PyGTK tutorial
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| - | #
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| - | # This example shows two toolbars
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| - | # in the application window
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| - | #
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| - | # author: jan bodnar
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| - | # website: zetcode.com
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| - | # last edited: February 2009
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| - |
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| - | import gtk
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| - |
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| - | class PyApp(gtk.Window):
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| - |
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| - | def __init__(self):
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| - | super(PyApp, self).__init__()
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| - |
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| - | self.set_title("Toolbars")
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| - | self.set_size_request(350, 300)
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| - | self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color(6400, 6400, 6440))
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| - | self.set_position(gtk.WIN_POS_CENTER)
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| - |
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| - | upper = gtk.Toolbar()
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| - | upper.set_style(gtk.TOOLBAR_ICONS)
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| - |
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| - | newtb = gtk.ToolButton(gtk.STOCK_NEW)
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| - | opentb = gtk.ToolButton(gtk.STOCK_OPEN)
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| - | savetb = gtk.ToolButton(gtk.STOCK_SAVE)
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| - |
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| - | upper.insert(newtb, 0)
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| - | upper.insert(opentb, 1)
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| - | upper.insert(savetb, 2)
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| - |
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| - | lower = gtk.Toolbar()
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| - | lower.set_style(gtk.TOOLBAR_ICONS)
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| - | quittb = gtk.ToolButton(gtk.STOCK_QUIT)
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| - | quittb.connect("clicked", gtk.main_quit)
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| - | lower.insert(quittb, 0)
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| - | vbox = gtk.VBox(False, 0)
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| - | vbox.pack_start(upper, False, False, 0)
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| - | vbox.pack_start(lower, False, False, 0)
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| - | self.add(vbox)
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| - | self.connect("destroy", gtk.main_quit)
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| - | self.show_all()
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| - | PyApp()
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| - | gtk.main()
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| - |
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| - | </source>
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| - |
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| - | Our applications shows two toolbars.
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| - |
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| - | <source lang="python">
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| - | upper = gtk.Toolbar()
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| - | ...
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| - | lower = gtk.Toolbar()
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| - | </source>
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| - |
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| - | We create two <b>Toolbar</b> widgets.
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| - | <source lang="python">
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| - | upper.insert(newtb, 0)
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| - | ...
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| - | lower.insert(quittb, 0)
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| - | </source>
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| - |
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| - | Each of them has it's own tool buttons.
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| - |
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| - | <source lang="python">
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| - | vbox = gtk.VBox(False, 0)
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| - | vbox.pack_start(upper, False, False, 0)
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| - | vbox.pack_start(lower, False, False, 0)
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| - | </source>
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| - | Toolbars are packed into the vertical box, one after the other.
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| - |
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| - | [[image: pygtk_faq_toolbars.png | center]]
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| - |
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| - | == Undo redo ==
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| - | The following example demonstrates, how we can inactivate toolbar buttons on the toolbar. It is a common practise in GUI programming. For example the save button. If we save all changes of our document to the disk, the save button is inactivated in most text editors. This way the application indicates to the user, that all changes are already saved.
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| - | <source lang="python">
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| - | #!/usr/bin/python
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| - | # ZetCode PyGTK tutorial
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| - | #
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| - | # This example shows how to
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| - | # activate/deactivate a ToolButton
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| - | #
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| - | # author: jan bodnar
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| - | # website: zetcode.com
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| - | # last edited: February 2009
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| - |
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| - | import gtk
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| - |
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| - | class PyApp(gtk.Window):
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| - | def __init__(self):
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| - | super(PyApp, self).__init__()
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| - |
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| - | self.set_title("Toolbar")
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| - | self.set_size_request(250, 200)
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| - | self.modify_bg(gtk.STATE_NORMAL, gtk.gdk.Color(6400, 6400, 6440))
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| - | self.set_position(gtk.WIN_POS_CENTER)
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| - |
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| - | self.count = 2
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| - |
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| - | toolbar = gtk.Toolbar()
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| - | toolbar.set_style(gtk.TOOLBAR_ICONS)
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| - | self.undo = gtk.ToolButton(gtk.STOCK_UNDO)
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| - | self.redo = gtk.ToolButton(gtk.STOCK_REDO)
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| - | sep = gtk.SeparatorToolItem()
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| - | quit = gtk.ToolButton(gtk.STOCK_QUIT)
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| - |
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| - | toolbar.insert(self.undo, 0)
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| - | toolbar.insert(self.redo, 1)
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| - | toolbar.insert(sep, 2)
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| - | toolbar.insert(quit, 3)
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| - | self.undo.connect("clicked", self.on_undo)
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| - | self.redo.connect("clicked", self.on_redo)
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| - | quit.connect("clicked", gtk.main_quit)
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| - | vbox = gtk.VBox(False, 2)
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| - | vbox.pack_start(toolbar, False, False, 0)
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| - | self.add(vbox)
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| - | self.connect("destroy", gtk.main_quit)
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| - | self.show_all()
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| - | def on_undo(self, widget):
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| - | self.count = self.count - 1
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| - | if self.count <= 0:
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| - | self.undo.set_sensitive(False)
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| - | self.redo.set_sensitive(True)
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| - | def on_redo(self, widget):
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| - | self.count = self.count + 1
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| - | if self.count >= 5:
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| - | self.redo.set_sensitive(False)
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| - | self.undo.set_sensitive(True)
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| - | PyApp()
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| - | gtk.main()
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| - | </source>
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| - |
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| - | Our example creates undo and redo buttons from the PyGTK stock resources. After several clicks each of the buttons is inactivated. The buttons are grayed out.
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| - |
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| - | <source lang="python">
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| - | self.count = 2
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| - | </source>
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| - | The <b>self.count</b> variable decides, which button is activated and deactivated.
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| - | <source lang="python">
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| - | self.undo = gtk.ToolButton(gtk.STOCK_UNDO)
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| - | self.redo = gtk.ToolButton(gtk.STOCK_REDO)
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| - | </source>
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| - | We have two tool buttons. Undo and redo tool buttons. Images come from the stock resources.
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| - | <source lang="python">
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| - | self.undo.connect("clicked", self.on_undo)
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| - | self.redo.connect("clicked", self.on_redo)
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| - | </source>
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| - |
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| - | We plug a method for the <b>clicked</b> signal for both tool buttons.
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| - | <source lang="python">
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| - | if self.count <= 0:
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| - | self.undo.set_sensitive(False)
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| - | self.redo.set_sensitive(True)
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| - | </source>
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| - | To activate a widget, we use the <b>set_sensitive()</b> method.
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| - | [[image: pygtk_faq_undoredo.png | center]]
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| - |
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| - | In this chapter of the PyGTK programming library, we mentioned toolbars.
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| - |
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| - | [[Категория:Python]]
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| - | [[Категория:GTK]]
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