Platforms to show: All Mac Windows Linux Cross-Platform
/Overlay/Overlay with Draw Event
Required plugins for this example: MBS Overlay Plugin, MBS MacCG Plugin, MBS MacCF Plugin, MBS Main Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /Overlay/Overlay with Draw Event
This example is the version from Sat, 27th Jul 2018.
Project "Overlay with Draw Event.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Delete"
Const kFileQuit = "&Quit"
Const kFileQuitShortcut = ""
End Class
Class MainWindow Inherits Window
Control Listbox1 Inherits Listbox
ControlInstance Listbox1 Inherits Listbox
End Control
Control PushButton1 Inherits PushButton
ControlInstance PushButton1 Inherits PushButton
EventHandler Sub Action()
create
End EventHandler
End Control
Control AnimationTimer Inherits Timer
ControlInstance AnimationTimer Inherits Timer
EventHandler Sub Action()
if o <> nil then
if o.growing then
o.pos = o.pos + 1
if o.pos > o.Width / 2 then
o.growing = false
end if
o.Update
else
if o.pos = 0 then
o.growing = true
else
o.pos = o.pos - 1
o.Update
end if
end if
end if
End EventHandler
End Control
EventHandler Function KeyDown(Key As String) As Boolean
Select case asc(key)
case 28 'left
move -10,0
Return true
case 29 'right
move 10,0
Return true
case 30 'top
move 0,-10
Return true
case 31 'down
move 0,10
Return true
end Select
End EventHandler
Sub Create()
o = new MyOverlay(500,100,200,200)
// No picture sert as we use draw event
o.hasShadow = false
o.Show
End Sub
Private Sub move(x as integer, y as integer)
o.Move o.Left+x,o.top+y
End Sub
Property DummyNSException As NSExceptionMBS
Property Private counter As Integer
Property Private o As MyOverlay
Property Private p As picture
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&File"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "Select &All"
End MenuBar
Class MyOverlay Inherits OverlayMBS
EventHandler Sub Draw(CGContext as Variant, NSGraphicsContext as Variant)
dim c as CGContextMBS = CGContext
'dim n as NSGraphicsMBS = NSGraphicsContext
dim red as CGColorMBS = CGColorMBS.CreateGenericRGB(1, 0, 0)
dim white as CGColorMBS = CGColorMBS.CreateGenericRGB(1, 1, 1)
dim w as integer = me.Width
dim h as integer = me.Height
dim r1 as new CGRectMBS(0,0, w, h)
dim r2 as new CGRectMBS(pos,pos, w/2, h/2)
c.SetFillColor white
c.FillEllipseInRect r1
c.SetFillColor red
c.FillEllipseInRect r2
'c.Flush
End EventHandler
EventHandler Function MouseDown(x as integer, y as integer, modifiers as integer) As boolean
log CurrentMethodName+" "+str(x)+" "+str(y)
End EventHandler
EventHandler Sub MouseEnter(x as integer, y as integer, modifiers as integer)
log CurrentMethodName+" "+str(x)+" "+str(y)
End EventHandler
EventHandler Sub MouseExit(x as integer, y as integer, modifiers as integer)
log CurrentMethodName+" "+str(x)+" "+str(y)
End EventHandler
EventHandler Function MouseUp(x as integer, y as integer, modifiers as integer) As boolean
log CurrentMethodName+" "+str(x)+" "+str(y)
End EventHandler
EventHandler Sub MouseWheel(x as integer, y as integer, dx as double, dy as double, modifiers as integer)
log CurrentMethodName+" "+str(x)+" "+str(y)+", delta "+str(dx)+"/"+str(dy)
End EventHandler
EventHandler Sub WindowBoundsChanged()
log "windowboundschanged"
End EventHandler
EventHandler Sub WindowClosed()
log "windowclosed"
MainWindow.AnimationTimer.Mode = timer.ModeOff
End EventHandler
EventHandler Sub WindowHidden()
log "windowhidden"
End EventHandler
EventHandler Sub WindowShown()
log "windowShown"
MainWindow.AnimationTimer.Mode = timer.ModeMultiple
End EventHandler
Private Function Window1open() As Boolean
dim i,c as integer
c=WindowCount-1
for i=0 to c
if window(i) isa MainWindow then
Return true
end if
next
End Function
Private Sub log(s as string)
System.DebugLog s
if Window1open then
MainWindow.Listbox1.InsertRow 0,s
end if
End Sub
Property growing As Boolean
Property pos As Integer
End Class
End Project
See also:
The items on this page are in the following plugins: MBS Overlay Plugin.