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Languages & Coding => Blitz Code Archives => BlitzPlus Gui => Topic started by: BlitzBot on June 29, 2017, 12:28:39 AM

Title: [bmx] CheckBox by JoshK [ 1+ years ago ]
Post by: BlitzBot on June 29, 2017, 12:28:39 AM

Title : CheckBox
Author : JoshK
Posted : 1+ years ago

Description : Sometimes you may be lining up a lot of gadgets with text labels on the left, and the gadget on the right.  In this situation, it looks better to have a checkbox that simply says True or False depending on whether it is checked, and a label to the left of it.  With this proxy gadget, you don't have to code the label switching for each button.

Code :

Code: BlitzMax

1. SuperStrict
2.  
3. Import maxgui.drivers
4.  
5. Type TCheckBox Extends TProxyGadget
6.        
7.         Field button:TGadget
8.        
9.         Method Cleanup()
10.                 RemoveHook(EmitEventHook,EventHook,Self)
11.                 Super.cleanup()
12.         EndMethod      
13.        
14.         Method UpdateText(state:Int)
15.                 If state
16.                         SetGadgetText button,"True"
17.                 Else
18.                         SetGadgetText button,"False"
19.                 EndIf
20.         EndMethod
21.        
22.         Function EventHook:Object(id:Int,data:Object,context:Object)
23.                 Local event:TEvent
24.                 Local checkbox:TCheckBox
25.                
26.                 event=TEvent(data)
27.                 If event
28.                         Select event.id                
29.                         Case EVENT_GADGETACTION        
30.                                 checkbox=TCheckBox(context)
31.                                 If checkbox
32.                                         If event.source=checkbox
33.                                                 checkbox.UpdateText event.data
34.                                         EndIf
35.                                 EndIf
36.                         EndSelect
37.                 EndIf
38.                 Return data
39.         EndFunction    
40.        
41.         Method SetSelected(state:Int)
42.                 button.SetSelected state
43.                 UpdateText state
44.         EndMethod
45.        
46.         Function Create:TCheckBox(x:Int,y:Int,width:Int,height:Int,group:TGadget,style:Int=0)
47.                 Local checkbox:TCheckBox=New TCheckBox
48.                 checkbox.button=CreateButton("False",x,y,width,height,group,BUTTON_CHECKBOX)
49.                 checkbox.SetProxy checkbox.button
50.                 AddHook EmitEventHook,EventHook,checkbox
51.                 Return checkbox
52.         EndFunction
53.        
54. EndType
55.  
56. Function CreateCheckBox:TCheckBox(x:Int,y:Int,width:Int,height:Int,group:TGadget,style:Int=0)
57.         Return TCheckBox.Create(x,y,width,height,group,style)
58. EndFunction
59.  
60.  
61. 'Example
62. Rem
63. Global window:TGadget = CreateWindow("MaxGUI Buttons",40,40,400,330,Null,WINDOW_TITLEBAR|WINDOW_CLIENTCOORDS)
64. Local checkbox:TGadget = CreateCheckBox(20,20,60,22,window)
65. SetButtonState checkbox,True
66.  
67. Repeat
68.         Select WaitEvent()
69.                 Case EVENT_WINDOWCLOSE, EVENT_APPTERMINATE
70.                         End
71.                 Case EVENT_GADGETACTION
72.                         Print "EVENT_GADGETACTION~n" + ..
73.                         "GadgetText(): ~q" + GadgetText(TGadget(EventSource())) + "~q ~t " + ..
74.                         "ButtonState(): "+ ButtonState(TGadget(EventSource()))
75.         EndSelect
76. Forever
77. EndRem

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