PB4.60B1x86 Win7 x64 MDI Window disappears

dige · **Posted:** Sat Feb 18, 2012 5:33 pm

After moving one of the splittergadgets, the mdi window isnt visible anymore...

Code:

If OpenWindow(0, 0, 0, 800, 600, "MDI Window Bug", #WS_OVERLAPPEDWINDOW )
  left = ContainerGadget(#PB_Any, 0, 0, 200, 600, #PB_Container_Flat )
  CloseGadgetList()
  SetGadgetColor(left, #PB_Gadget_BackColor, #Red )
  right = ContainerGadget(#PB_Any, 200, 0, 600, 600, #PB_Container_Flat )
  
    right_sub_up = ContainerGadget(#PB_Any, 0, 0, 600, 100, #PB_Container_Flat )
    CloseGadgetList()
    SetGadgetColor(right_sub_up, #PB_Gadget_BackColor, #Blue )

    right_sub_dn = ContainerGadget(#PB_Any, 0, 100, 600, 500, #PB_Container_Flat )
      right_sub_left = ContainerGadget(#PB_Any, 0, 0, 300, 500, #PB_Container_Flat )
        
      CloseGadgetList()
      SetGadgetColor(right_sub_left, #PB_Gadget_BackColor, #Green )
      right_sub_right = ContainerGadget(#PB_Any, 300, 0, 300, 500, #PB_Container_Flat )
        mdi = MDIGadget( #PB_Any, 0, 0, 300, 500, 0, 0, #PB_MDI_BorderLess|#PB_MDI_NoScrollBars )
        AddGadgetItem(mdi, 1, "MDI Win", 0, #WS_POPUP )
        ListIconGadget(#PB_Any, 0, 0, WindowWidth(1), WindowHeight(1), "Nr", 100, #PB_ListIcon_GridLines )
        UseGadgetList( WindowID(0))
      CloseGadgetList()
      SetGadgetColor(right_sub_right, #PB_Gadget_BackColor, #Yellow )
      sp3 = SplitterGadget( #PB_Any, 0, 0, 600, 500, right_sub_left, right_sub_right, #PB_Splitter_Vertical|#PB_Splitter_Separator )
      SetGadgetState(sp3, 400)
    CloseGadgetList()
    
    sp2 = SplitterGadget( #PB_Any, 0, 0, 600, 600, right_sub_up, right_sub_dn, #PB_Splitter_Separator )
    SetGadgetState(sp2, 150)
    
  CloseGadgetList()
  
  sp1 = SplitterGadget(#PB_Any, 0, 0, 800, 600, left, right, #PB_Splitter_Vertical |#PB_Splitter_Separator )
  SetGadgetState(sp1, 200)
  
  Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf

ts-soft · **Posted:** Sat Feb 18, 2012 5:56 pm

http://www.purebasic.com/documentation/gadget/mdigadget.html wrote:

You can only put this gadget directly on a window, you can NOT put it inside a ContainerGadget(), SplitterGadget() or PanelGadget().

RASHAD · **Joined:** Sun Apr 12, 2009 6:27 am **Posts:** 1476

It is a matter of redraw issue in your case

Code:

If OpenWindow(0, 0, 0, 800, 600, "MDI Window Bug", #WS_OVERLAPPEDWINDOW )
  left = ContainerGadget(#PB_Any, 0, 0, 200, 600, #PB_Container_Flat )
  CloseGadgetList()
  SetGadgetColor(left, #PB_Gadget_BackColor, #Red )
  right = ContainerGadget(#PB_Any, 200, 0, 600, 600, #PB_Container_Flat )
  
    right_sub_up = ContainerGadget(#PB_Any, 0, 0, 600, 100, #PB_Container_Flat )
    CloseGadgetList()
    SetGadgetColor(right_sub_up, #PB_Gadget_BackColor, #Blue )

    right_sub_dn = ContainerGadget(#PB_Any, 0, 100, 600, 500, #PB_Container_Flat )
      right_sub_left = ContainerGadget(#PB_Any, 0, 0, 300, 500, #PB_Container_Flat )
        
      CloseGadgetList()
      SetGadgetColor(right_sub_left, #PB_Gadget_BackColor, #Green )
      right_sub_right = ContainerGadget(#PB_Any, 300, 0, 300, 500, #PB_Container_Flat )
        mdi = MDIGadget( #PB_Any, 0, 0, 300, 500, 0, 0, #PB_MDI_BorderLess|#PB_MDI_NoScrollBars )
        AddGadgetItem(mdi, 1, "MDI Win", 0, #WS_POPUP )
        ListIconGadget(#PB_Any, 0, 0, WindowWidth(1), WindowHeight(1), "Nr", 100, #PB_ListIcon_GridLines )
        UseGadgetList( WindowID(0))
      CloseGadgetList()
      SetGadgetColor(right_sub_right, #PB_Gadget_BackColor, #Yellow )
      sp3 = SplitterGadget( #PB_Any, 0, 0, 600, 500, right_sub_left, right_sub_right, #PB_Splitter_Vertical|#PB_Splitter_Separator )
      SetGadgetState(sp3, 400)
    CloseGadgetList()
    
    sp2 = SplitterGadget( #PB_Any, 0, 0, 600, 600, right_sub_up, right_sub_dn, #PB_Splitter_Separator )
    SetGadgetState(sp2, 150)
    
  CloseGadgetList()
  
  sp1 = SplitterGadget(#PB_Any, 0, 0, 800, 600, left, right, #PB_Splitter_Vertical |#PB_Splitter_Separator )
  SetGadgetState(sp1, 200)

Repeat
  Select WaitWindowEvent()
      
       Case #PB_Event_CloseWindow
          Quit = 1
       
       Case #WM_CLOSE
      
      Case #PB_Event_Gadget
          Select EventGadget()
           Case sp1,sp2,sp3
              RedrawWindow_(GadgetID(mdi),#Null,#Null,#RDW_INVALIDATE|#RDW_UPDATENOW)      
          EndSelect
  EndSelect
Until Quit = 1
EndIf

dige · **Posted:** Sun Feb 19, 2012 8:56 am

Thx RASHAD! Before I posted, I had also tried to use RedrawWindow_(). But it tried
it on the MDI Window itself not on the MDI Gadet...

Now it seems to be working as expected. But what about the reference in the help,
that you can not create an MDIGadget() inside a container?

ts-soft · **Posted:** Sun Feb 19, 2012 9:09 am

dige wrote:

But what about the reference in the help,
that you can not create an MDIGadget() inside a container?

Is not supported and works not okay. It is not only the redraw, for
example the MDIChild can't create the closebutton in menu, if maximized.

Greetings - Thomas

RASHAD · **Joined:** Sun Apr 12, 2009 6:27 am **Posts:** 1476

Hi dige
What ts-soft mentioned is 100% true
What we are doing is workaround for your case and always we will find our narrow escape
Keep going

Edit : Remove #WS_POPUP to show the close button for MDI Child

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PB4.60B1x86 Win7 x64 MDI Window disappears

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