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sample: Make the CustomScrollableWidget sample more elaborate

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Make the custom widget a generic class, and add and use a derived class.
Also add a second instance of the custom widget, to better test the
interface properties support.
This commit is contained in:
Bertrand Lorentz 2011-12-03 16:30:23 +01:00
parent 0de6e9869d
commit 2297695fd2
1 changed files with 20 additions and 7 deletions
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27
sample/CustomScrollableWidget.cs
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@ -9,14 +9,25 @@ class CustomScrollableWidgetTest {
Window win = new Window ("Custom Scrollable Widget Test"); Window win = new Window ("Custom Scrollable Widget Test");
win.DeleteEvent += new DeleteEventHandler (OnQuit); win.DeleteEvent += new DeleteEventHandler (OnQuit);
VPaned paned = new VPaned ();
ScrolledWindow scroll = new ScrolledWindow (); ScrolledWindow scroll = new ScrolledWindow ();
scroll.HscrollbarPolicy = PolicyType.Automatic; scroll.HscrollbarPolicy = PolicyType.Automatic;
scroll.VscrollbarPolicy = PolicyType.Automatic; scroll.VscrollbarPolicy = PolicyType.Automatic;
CustomScrollableWidget cw = new CustomScrollableWidget ("This one label that is repeated"); var cw = new DerivedScrollableWidget<string> ("This one label that is repeated");
scroll.Add (cw); scroll.Add (cw);
paned.Pack1 (scroll, true, false);
win.Add (scroll); scroll = new ScrolledWindow ();
scroll.HscrollbarPolicy = PolicyType.Automatic;
scroll.VscrollbarPolicy = PolicyType.Automatic;
var cw2 = new DerivedScrollableWidget<object> ("Another label that is repeated");
scroll.Add (cw2);
paned.Pack2 (scroll, true, false);
win.Add (paned);
win.DefaultWidth = 200; win.DefaultWidth = 200;
win.DefaultHeight = 200; win.DefaultHeight = 200;
win.ShowAll (); win.ShowAll ();
@ -36,7 +47,13 @@ abstract class CustomBase : Widget
{ } { }
} }
class CustomScrollableWidget : CustomBase, ScrollableImplementor { class DerivedScrollableWidget<T> : CustomScrollableWidget<T>
{
public DerivedScrollableWidget (string label) : base (label)
{ }
}
class CustomScrollableWidget<T> : CustomBase, ScrollableImplementor {
private int num_rows = 20; private int num_rows = 20;
private string label; private string label;
private Pango.Layout layout; private Pango.Layout layout;
@ -166,8 +183,6 @@ class CustomScrollableWidget : CustomBase, ScrollableImplementor {
if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper) { if (hadjustment.Value + hadjustment.PageSize > hadjustment.Upper) {
hadjustment.Value = hadjustment.Upper - hadjustment.PageSize; hadjustment.Value = hadjustment.Upper - hadjustment.PageSize;
} }
Console.WriteLine (String.Format ("H adj={0} upper={1} PageSize={2} PageInc={3}",
HadjustmentValue, hadjustment.Upper, hadjustment.PageSize, hadjustment.PageIncrement));
hadjustment.Change (); hadjustment.Change ();
} }
@ -177,8 +192,6 @@ class CustomScrollableWidget : CustomBase, ScrollableImplementor {
if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper) { if (vadjustment.Value + vadjustment.PageSize > vadjustment.Upper) {
vadjustment.Value = vadjustment.Upper - vadjustment.PageSize; vadjustment.Value = vadjustment.Upper - vadjustment.PageSize;
} }
Console.WriteLine (String.Format ("V adj={0} upper={1} PageSize={2} PageInc={3}",
VadjustmentValue, vadjustment.Upper, vadjustment.PageSize, vadjustment.PageIncrement));
vadjustment.Change (); vadjustment.Change ();
} }
} }