PureBasic Forums - English

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If OpenWindow(0,0,0,500,500,"",#PB_Window_SystemMenu) 
 
    TextGadget(1,10,10,200,200,"Test 1 2 3 4 5 6 7 8",$340|$1|$20000) ;$20000=#PB_Text_Border and $1=PB_Text_Center
    StringGadget(2,10,250,200,200,"Test 1 2 3 4 5 6 7 8",$340|$1|$20000) ;$20000=#PB_Text_Border and $1=PB_Text_Center

  
Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow 
EndIf 

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; ************************************************
; Code:   Verticaly and Horizontaly centered text
;         in a multiline StringGadget
; Author: Sparkie
; Date:   December 20, 2005
; OS:     Windows only
; ************************************************

; ************************************************
; Procedure: Center text in Multiline StringGadget
; ************************************************
Procedure StringGadgetVCenter(gadNum)
  ;--> Get line count of StringGadget
  lineCount = SendMessage_(GadgetID(gadNum), #EM_GETLINECOUNT, 0, 0)
  myText$ = GetGadgetText(gadNum)
  ;--> Get width and height of text on one line
  hdc = GetDC_(GadgetID(gadNum))
  GetTextExtentPoint32_(hdc, myText$, Len(myText$), @textXY.SIZE)
  ReleaseDC_(GadgetID(gadNum), hdc)
  ;--> Set rect coordinates for StringGadget
  eRect.RECT
  eRect\left = 0
  eRect\top = (GadgetHeight(gadNum) - textXY\cy*lineCount) / 2
  eRect\right = GadgetWidth(gadNum) - (eRect\left * 2)
  eRect\bottom = eRect\top + textXY\cy*lineCount
  SendMessage_(GadgetID(gadNum), #EM_SETRECT, 0, eRect)
EndProcedure
; ************************************************
; Main Window
; ************************************************
If OpenWindow(0, 0, 0, 300, 200, "StringGadget Centered Text", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)
  ;--> #ES_CENTER will not work with a singleline StringGadget on Win95/NT4
  StringGadget(0, 50, 10, 200, 80, "Vertical and Horizontal" + #CRLF$ + "Centered Text in" + #CRLF$ + "Multiline StringGadget", #ES_MULTILINE | #ES_CENTER)
  StringGadgetVCenter(0)
  Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow
EndIf
End 

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Procedure StringGadgetVCenter(gadNum)
  ;--> Get line count of StringGadget
  lineCount = SendMessage_(GadgetID(gadNum), #EM_GETLINECOUNT, 0, 0)
  myText$ = GetGadgetText(gadNum)
  ;--> Get width and height of text on one line
  hdc = GetDC_(GadgetID(gadNum))
  GetTextExtentPoint32_(hdc, myText$, Len(myText$), @textXY.SIZE)
  ReleaseDC_(GadgetID(gadNum), hdc)
  ;--> Set rect coordinates for StringGadget
  eRect.RECT
  eRect\left = 0
  eRect\top = (GadgetHeight(gadNum) - textXY\cy*lineCount) / 2
  eRect\right = GadgetWidth(gadNum) - (eRect\left * 2)
  eRect\bottom = eRect\top + textXY\cy*lineCount
  SendMessage_(GadgetID(gadNum), #EM_SETRECT, 0, eRect)
EndProcedure

If OpenWindow(0, 0, 0, 300, 250, "StringGadget Centered Text", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)

  StringGadget(0, 10, 10, 280, 230, "Vertical and Horizontal" + #CRLF$ + "Centered Text in" + #CRLF$ + "Multiline StringGadget", #ES_MULTILINE | #ES_CENTER)

  SetGadgetFont(0, LoadFont(0, "Courier", 20)) ; This stops it showing the last line ("Multiline StringGadget").

  StringGadgetVCenter(0)

  Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow

EndIf

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Procedure StringGadgetVCenter(gadNum)
  lineCount = SendMessage_(GadgetID(gadNum), #EM_GETLINECOUNT, 0, 0)
  hdc = GetDC_(GadgetID(gadNum))
  SelectObject_(hdc,FontID(0))
  GetTextExtentPoint32_(hdc,"Qj",2,textXY.SIZE)
  ReleaseDC_(GadgetID(gadNum), hdc) 
  
  eRect.RECT  
  GetClientRect_(GadgetID(gadNum),eRect)
  eRect\top = (GadgetHeight(gadNum) - textXY\cy*lineCount) / 2
  eRect\bottom = eRect\top + textXY\cy*lineCount
  SendMessage_(GadgetID(gadNum), #EM_SETRECT, 0, eRect)
EndProcedure

LoadFont(0, "Courier", 20)
If OpenWindow(0, 0, 0, 300, 250, "StringGadget Centered Text", #PB_Window_SystemMenu | #PB_Window_ScreenCentered)

  StringGadget(0, 10, 10, 280, 230, "Vertical and Horizontal" + #CRLF$ + "Centered Text in" + #CRLF$ + "Multiline StringGadget", #ES_MULTILINE | #ES_CENTER)

  SetGadgetFont(0,FontID(0) ) ; This stops it showing the last line ("Multiline StringGadget").

  StringGadgetVCenter(0)

  Repeat : Until WaitWindowEvent() = #PB_Event_CloseWindow

EndIf

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; erasing this useless demo code, but keeping picture to which
; RASHAD answered "NO bug" (see messages below)

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; source : RASHAD
; https://www.purebasic.fr/english/viewtopic.php?f=12&t=72996&p=537864#p537864

;- constants
Enumeration 
  #BUTTON_go = 5 : #BUTTON_bye : #font_LABEL : #font_SiZE : #padding_CHOICE
EndEnumeration

Define fontSize = 32
Procedure Three_strings(abc.s)
  #minFONT = 6
  #maxFONT = 120

  Shared fontSize
  fontSize = Val(GetGadgetText(#font_SiZE))

  If fontSize < #minFONT : fontSize = #minFONT : SetGadgetText(#font_SiZE, Str(#minFONT))
  ElseIf fontSize > #maxFONT : fontSize = #maxFONT : SetGadgetText(#font_SiZE, Str(#maxFONT))
  EndIf

  LoadFont(0,"Tahoma",fontSize)
  Protected wPadding, hPadding
  
  If GetGadgetState(#padding_CHOICE)
    wPadding = 1 + fontSize*0.6   ; what would be a smarter value here ?
    hPadding = wPadding/3
  Else
    wPadding = 0
    hPadding = 2
  EndIf
   
  ;- 1 ****
  StringGadget(1, 10,10,1200,2,ABC)
  SetGadgetFont(1,FontID(0))
  h = GadgetHeight(1,#PB_Gadget_RequiredSize)
  ResizeGadget(1,#PB_Ignore,#PB_Ignore,#PB_Ignore,h+2)

  ;- 2 ****
  #dY = 6
  StringGadget(2, 10,GadgetY(1)+h+#dY,2,2,abc)
  SetGadgetFont(2,FontID(0))
  dummy = TextGadget(#PB_Any,0,0,0,0,abc)
    SetGadgetFont(dummy,FontID(0))
    h = hPadding + GadgetHeight(dummy, #PB_Gadget_RequiredSize)
    w = hPadding + GadgetWidth(dummy,  #PB_Gadget_RequiredSize)
  FreeGadget(dummy)
  ResizeGadget(2,#PB_Ignore,#PB_Ignore,w,h)

  ;- 3 ****
  StringGadget(3, 10,GadgetY(2)+h+#dY,w+wPadding,h,abc)
  SetGadgetFont(3,FontID(0))
EndProcedure

OpenWindow(0, 0, 0, 1220, 600, "StringGadget ", #PB_Window_SystemMenu|#PB_Window_ScreenCentered|#PB_Window_SizeGadget)
SetWindowColor(0,#White)

Define gX, gY, gW, gH
gH = 24 : gW = 100
gY = WindowHeight(0) - gH - 10
gX = 10

Define gFont = LoadFont(1,"Arial", 11)
SetGadgetFont(#PB_Default, gFont)
  
gX  = 10
  TextGadget(#font_LABEL, gX,gY,gW,gH,"Font size : ", #SS_CENTERIMAGE|#PB_Text_Right)
  SetGadgetColor(#font_LABEL, #PB_Gadget_BackColor, #White)
gX + gW 
  StringGadget(#font_SiZE, gX,gY,48,gH,Str(fontSize), #PB_String_Numeric)

gX + 54 : gW = 175
  CheckBoxGadget(#padding_CHOICE, gX,gY,gW,gH,"pad the StringGadgets")

gX + gW + 10 : gW = 100
  ButtonGadget(#BUTTON_go, gX,gY,gW,gH,"test it", #PB_Button_Default)
  AddKeyboardShortcut(0,#PB_Shortcut_Return, #BUTTON_go)

gX + gW + 10
  ButtonGadget(#BUTTON_bye, gX,gY,gW,gH,"Bye Bye !")

Three_strings("ABC pyj_WXYZ")

Repeat
  event = WaitWindowEvent()
  Select event
    Case #PB_Event_CloseWindow : End
    Case #PB_Event_Gadget, #PB_Event_Menu
      Select EventGadget()
        Case #BUTTON_go
          Three_strings("ABC pyj_WXYZ")
        Case #BUTTON_bye : Break
      EndSelect
  EndSelect
ForEver

End