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Hi all. I need a little help with GDI+.

I am attempting to display a block of pre-wrapped text using GDI+. (Ultimately I want to be able to print it, so I'm using GDI+ with GRS' UDF. But that doesn't come into play here.) I want to be able to calculate the height and width automatically based on the font and text used. I made a "small" application that asks a user for a font/style and displays a block of typical Latin "lorem ipsum" text. I'm using Melba32's and as far as I can tell it works perfectly. The size it comes up with should be large enough to hold the text. GDI+ disagrees with me, and wraps the text occasionally, causing some lines to have only 1 word and pushing lower lines out of view. Below is my code. Can anyone help me figure out what's causing this? The only current workaround I've found is to pad the width returned by _StringSize by 30 pixels, and I'd really rather not rely on something like that. I suspect there's some kind of a "frame" issue going on, like margin/padding issues in CSS, but I just can't nail it down. Thanks in advance!

EDIT - How do I preserve the tabs in my code when pasting here?

#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <Misc.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>
#include "StringSize.au3"

; GDI Fonts
; Get a font, show some text.


; Credit: Melba
; For: StringSize UDF
; http://www.autoitscript.com/forum/topic/114034-stringsize-m23-new-version-16-aug-11/

; Credit: ReFran and UEZ
; For: GDI Repainting
; Source: http://www.autoitscript.com/forum/topic/135199-table-wit-gdiborder-lines-dont-redraw/

; Credit: loremipsum.net
; For: Lorem Ipsum text
; Source: http://www.loremipsum.net/


AutoItSetOption("MustDeclareVars", 1)
Global Const $_ATTRIB = 1, $_NAME = 2, $_SIZE = 3, $_WEIGHT = 4, $_COLOR = 7 ; $aFont indices
Global Const $_TEXT = 0, $_WIDTH = 2, $_HEIGHT = 3 ; $aStringSize indices
Global $aFont, $aStringSize, $hGUI, $hGraphic, $hBrush, $hFormat, $hFamily, $hFont, $tLayout, $aInfo, $sText
Main()

Func Main()

; Sample Text
$sText = _
" 1 - Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt" & @CRLF & _
" 2 - ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci" & @CRLF & _
" 3 - tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum" & @CRLF & _
" 4 - iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat" & @CRLF & _
" 5 - nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum" & @CRLF & _
" 6 - zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis" & @CRLF & _
" 7 - eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non" & @CRLF & _
" 8 - habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes" & @CRLF & _
" 9 - demonstraverunt lectores legere me lius quod ii legunt saepius. Claritas est etiam processus" & @CRLF & _
"10 - dynamicus, qui sequitur mutationem consuetudium lectorum. Mirum est notare quam littera gothica," & @CRLF & _
"11 - quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis per seacula quarta " & @CRLF & _
"12 - decima et quinta decima. Eodem modo typi, qui nunc nobis videntur parum clari, fiant sollemnes" & @CRLF & _
"13 - in futurum. ##"

; Get font data
$aFont = _ChooseFont()
If Not IsArray($aFont) Then Return -1
$aFont[$_ATTRIB] = Number($aFont[$_ATTRIB]) ; _ChooseFont() returns an array of strings which must be converted for use
$aFont[$_SIZE] = Number($aFont[$_SIZE])
$aFont[$_WEIGHT] = Number($aFont[$_WEIGHT])
$aStringSize = _StringSize($sText, $aFont[$_SIZE], $aFont[$_WEIGHT], $aFont[$_ATTRIB], $aFont[$_NAME])
If Not IsArray($aStringSize) Then Return -1

; Build GUI
$hGUI = GUICreate("GDI+ Font Test (13 Lines)", $aStringSize[$_WIDTH] + 20, $aStringSize[$_HEIGHT] + 50)
GUICtrlCreateLabel("Font: " & $aFont[$_NAME] & ", Size: " & $aFont[$_SIZE] & ", Attribute: " & $aFont[$_ATTRIB] & ", Weight: " & $aFont[$_WEIGHT] & ", Color: " & $aFont[$_COLOR], 10, 10, $aStringSize[$_WIDTH], 20)
_GDIPlus_Startup ()
$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
$hBrush = _GDIPlus_BrushCreateSolid("0xFF" & StringMid($aFont[$_COLOR], 3))
$hFormat = _GDIPlus_StringFormatCreate()
$hFamily = _GDIPlus_FontFamilyCreate($aFont[$_NAME])
$hFont = _GDIPlus_FontCreate($hFamily, $aFont[$_SIZE], $aFont[$_ATTRIB])
$tLayout = _GDIPlus_RectFCreate(10, 30, $aStringSize[$_WIDTH], $aStringSize[$_HEIGHT])
$aInfo = _GDIPlus_GraphicsMeasureString($hGraphic, $aStringSize[$_TEXT], $hFont, $tLayout, $hFormat)
GUIRegisterMsg($WM_PAINT, "_WMPAINT")
GUISetState(@SW_SHOW, $hGUI)

; Message Loop
Do
Until GUIGetMsg() == $GUI_EVENT_CLOSE

; Clean up
_GDIPlus_FontDispose($hFont)
_GDIPlus_FontFamilyDispose($hFamily)
_GDIPlus_StringFormatDispose($hFormat)
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()
EndFunc

Func _WMPAINT()
; Repaints the GDI+ stuff (border & text)
; I only tested this on Win7 (x32 and x64), but it *should* be compatible with other Windows versions
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_UPDATENOW)
_GDIPlus_GraphicsDrawStringEx($hGraphic, $aStringSize[$_TEXT], $hFont, $aInfo[0], $hFormat, $hBrush)
_GDIPlus_GraphicsDrawRect($hGraphic, 10, 30, $aStringSize[$_WIDTH], $aStringSize[$_HEIGHT])
_WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_VALIDATE)
EndFunc
Edited by Artisan

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Try this:

 

#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <Misc.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>
;~ #include "StringSize.au3"

; GDI Fonts
; Get a font, show some text.


; Credit: Melba
; For: StringSize UDF
; http://www.autoitscript.com/forum/topic/114034-stringsize-m23-new-version-16-aug-11/

; Credit: ReFran and UEZ
; For: GDI Repainting
; Source: http://www.autoitscript.com/forum/topic/135199-table-wit-gdiborder-lines-dont-redraw/

; Credit: loremipsum.net
; For: Lorem Ipsum text
; Source: http://www.loremipsum.net/


AutoItSetOption("MustDeclareVars", 1)
Global Const $_ATTRIB = 1, $_NAME = 2, $_SIZE = 3, $_WEIGHT = 4, $_COLOR = 7 ; $aFont indices
Global Const $_TEXT = 0, $_WIDTH = 2, $_HEIGHT = 3 ; $aStringSize indices
Global $aFont, $aStringSize, $hGUI, $hGraphic, $hBrush, $hFormat, $hFamily, $hFont, $tLayout, $aInfo, $sText
Main()

Func Main()

    ; Sample Text
    $sText = _
            " 1 - Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt" & @CRLF & _
            " 2 - ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim ad minim veniam, quis nostrud exerci" & @CRLF & _
            " 3 - tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat. Duis autem vel eum" & @CRLF & _
            " 4 - iriure dolor in hendrerit in vulputate velit esse molestie consequat, vel illum dolore eu feugiat" & @CRLF & _
            " 5 - nulla facilisis at vero eros et accumsan et iusto odio dignissim qui blandit praesent luptatum" & @CRLF & _
            " 6 - zzril delenit augue duis dolore te feugait nulla facilisi. Nam liber tempor cum soluta nobis" & @CRLF & _
            " 7 - eleifend option congue nihil imperdiet doming id quod mazim placerat facer possim assum. Typi non" & @CRLF & _
            " 8 - habent claritatem insitam; est usus legentis in iis qui facit eorum claritatem. Investigationes" & @CRLF & _
            " 9 - demonstraverunt lectores legere me lius quod ii legunt saepius. Claritas est etiam processus" & @CRLF & _
            "10 - dynamicus, qui sequitur mutationem consuetudium lectorum. Mirum est notare quam littera gothica," & @CRLF & _
            "11 - quam nunc putamus parum claram, anteposuerit litterarum formas humanitatis per seacula quarta " & @CRLF & _
            "12 - decima et quinta decima. Eodem modo typi, qui nunc nobis videntur parum clari, fiant sollemnes" & @CRLF & _
            "13 - in futurum. ##"

    ; Get font data
    $aFont = _ChooseFont()
    If Not IsArray($aFont) Then Return -1
    _GDIPlus_Startup()
    $aFont[$_ATTRIB] = Number($aFont[$_ATTRIB]) ; _ChooseFont() returns an array of strings which must be converted for use
    $aFont[$_SIZE] = Number($aFont[$_SIZE])
    $aFont[$_WEIGHT] = Number($aFont[$_WEIGHT])
;~  $aStringSize = _StringSize($sText, $aFont[$_SIZE], $aFont[$_WEIGHT], $aFont[$_ATTRIB], $aFont[$_NAME])
    $aStringSize = _GDIPlus_MeasureString($sText, $aFont[$_NAME], $aFont[$_SIZE], $aFont[$_ATTRIB])

;~  _GDIPlus_MeasureString($sString, $sFont = "Arial", $fSize = 12, $iStyle = 0)
    If Not IsArray($aStringSize) Then Return -1

    ; Build GUI
    $hGUI = GUICreate("GDI+ Font Test (13 Lines)", $aStringSize[0] + 20, $aStringSize[1] + 50)
    GUICtrlCreateLabel("Font: " & $aFont[$_NAME] & ", Size: " & $aFont[$_SIZE] & ", Attribute: " & $aFont[$_ATTRIB] & ", Weight: " & $aFont[$_WEIGHT] & ", Color: " & $aFont[$_COLOR], 10, 10, $aStringSize[0], 20)

    $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
    $hBrush = _GDIPlus_BrushCreateSolid("0xFF" & StringMid($aFont[$_COLOR], 3))
    $hFormat = _GDIPlus_StringFormatCreate()
    $hFamily = _GDIPlus_FontFamilyCreate($aFont[$_NAME])
    $hFont = _GDIPlus_FontCreate($hFamily, $aFont[$_SIZE], $aFont[$_ATTRIB])
    $tLayout = _GDIPlus_RectFCreate(10, 30, $aStringSize[0], $aStringSize[1])
;~  $aInfo = _GDIPlus_GraphicsMeasureString($hGraphic, $sText, $hFont, $tLayout, $hFormat)
    GUIRegisterMsg($WM_PAINT, "_WMPAINT")
    GUISetState(@SW_SHOW, $hGUI)

    ; Message Loop
    Do
    Until GUIGetMsg() == $GUI_EVENT_CLOSE

    ; Clean up
    _GDIPlus_FontDispose($hFont)
    _GDIPlus_FontFamilyDispose($hFamily)
    _GDIPlus_StringFormatDispose($hFormat)
    _GDIPlus_BrushDispose($hBrush)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
EndFunc   ;==>Main

Func _WMPAINT()
    ; Repaints the GDI+ stuff (border & text)
    ; I only tested this on Win7 (x32 and x64), but it *should* be compatible with other Windows versions
    _WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_UPDATENOW)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sText, $hFont, $tLayout, $hFormat, $hBrush)
    _GDIPlus_GraphicsDrawRect($hGraphic, 10, 30, $aStringSize[0], $aStringSize[1])
    _WinAPI_RedrawWindow($hGUI, 0, 0, $RDW_VALIDATE)
EndFunc   ;==>_WMPAINT

Func _GDIPlus_MeasureString($sString, $sFont = "Arial", $fSize = 12, $iStyle = 0, $bRound = True)
    Local $aSize[2]
    Local Const $hFamily = _GDIPlus_FontFamilyCreate($sFont)
    If Not $hFamily Then Return SetError(1, 0, $aSize)
    Local Const $hFormat = _GDIPlus_StringFormatCreate()
    Local Const $hFont = _GDIPlus_FontCreate($hFamily, $fSize, $iStyle)
    Local Const $tLayout = _GDIPlus_RectFCreate(0, 0, 0, 0)
    Local Const $hGraphic = _GDIPlus_GraphicsCreateFromHWND(0)
    Local $aInfo = _GDIPlus_GraphicsMeasureString($hGraphic, $sString, $hFont, $tLayout, $hFormat)
    $aSize[0] = $bRound ? Round($aInfo[0].Width, 0) : $aInfo[0].Width
    $aSize[1] = $bRound ? Round($aInfo[0].Height, 0) : $aInfo[0].Height
    _GDIPlus_FontDispose($hFont)
    _GDIPlus_FontFamilyDispose($hFamily)
    _GDIPlus_StringFormatDispose($hFormat)
    _GDIPlus_GraphicsDispose($hGraphic)
    Return $aSize
EndFunc   ;==>_GDIPlus_MeasureString

Br,

UEZ

Edited by UEZ

Please don't send me any personal message and ask for support! I will not reply!

Selection of finest graphical examples at Codepen.io

The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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Very clever, using a "dummy" GDI graphic with no defined size to get the size needed.  It works well.  Thanks UEZ!

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    • By Elizabeth
      Buttons on GUI to perform different tasks. SETUP is a task that involves displaying another GUI, doing calculations, writing lines to 2 external files, displaying information on GUI labels.  The info from the displayed GUI (quantity made and job completed YES or NO) must be included on the written lines. I cannot get the script to run synchronously (waterfall execution 1st one ends before 2nd one starts.) That means lines written to the files do not contain the required data.  I have read through FORUM and thought by inserting a boolean value and changing TRUE FALSE that I could solve this issue. I would have to set/reset the boolean before every function call to make it work. I've tried using Sleep but that just slows everything down and makes main GUI look unresponsive
      Is there a trick or tip someone can provide that forces synchronous execution?
      I am using OPT GUIOnEventMode
      Thank you for any insight into this issue.
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