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Changes between Initial Version and Version 1 of GtkSimpleWidgets

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Timestamp:
11/02/11 17:02:03 (13 years ago)
Author:
callisto
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added page for GtkSimpleWidgets

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  • GtkSimpleWidgets

    v1 v1  
     1= Gtk Simple Widgets = 
     2 
     3These are widgets that can be clicked or otherwise react to a user's request.  Gtk provides many different types of widgets, and only a selection is illustrated here. 
     4 
     5== Buttons == 
     6 
     7A button displays some text and/or icon, and generates a 'clicked' signal when clicked by the user. 
     8The simplest way to create a button is to pass it some text to use as the label: 
     9 
     10{{{ 
     11#!cobra 
     12button1 = Button("Click me") 
     13}}} 
     14 
     15An alternative way is to use one of the stock actions (see [http://developer.gnome.org/gtk/2.24/gtk-Stock-Items.html#GTK-STOCK-OK:CAPS here] for a complete list).  For example: 
     16 
     17{{{ 
     18#!cobra 
     19button1 = Button(Stock.quit) 
     20}}} 
     21 
     22To connect a method to a button, listen to the 'clicked' event.  For example: 
     23 
     24{{{ 
     25#!cobra 
     26listen button1.clicked, ref .buttonClicked 
     27}}} 
     28 
     29The code below is a complete example showing how to create and pack to buttons into a window.  The final window should look something like: 
     30 
     31[[Image(buttons.png)]] 
     32 
     33{{{ 
     34#!cobra 
     35# @args -pkg:gtk-sharp-2.0  # remove initial '#' 
     36 
     37use Gtk 
     38 
     39class ExampleWindow inherits Window 
     40        cue init 
     41                base.init("Buttons Example") 
     42                .setDefaultSize(300,200) 
     43                listen .deleteEvent, ref .quit 
     44                .createWidgets 
     45 
     46        def quit(obj, e) 
     47                Application.quit 
     48 
     49        def createWidgets 
     50                # Create a button with given title text 
     51                button1 = Button("Click me") 
     52                # associate action when clicked 
     53                listen button1.clicked, ref .buttonClicked 
     54 
     55                # Create a button using stock 'quit' label and icon 
     56                button2 = Button(Stock.quit) 
     57                # associate action when clicked 
     58                listen button2.clicked, ref .quit 
     59 
     60                # Add the two buttons to the window within a box 
     61                box = VBox(true, 0) 
     62                box.packStart(button1, false, false, 20) 
     63                box.packStart(button2, false, false, 20) 
     64 
     65                .add(box) 
     66 
     67        def buttonClicked(obj, e) 
     68                print "Clicked button" 
     69 
     70class MainProgram 
     71        def main 
     72                Application.init 
     73                window = ExampleWindow() 
     74                window.showAll 
     75                Application.run 
     76}}} 
     77 
     78== Check Boxes == 
     79 
     80 
     81== Radio Buttons == 
     82 
     83 
     84== Combo Boxes == 
     85 
     86 
     87== Spin Boxes == 
     88