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GDI+ Pie in Tab [SOLVED]

Ebola57

By Ebola57,
in AutoIt GUI Help and Support

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Ebola57 Wayfarer

Ebola57

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Hi communnity

Trying to turn all the way I am not able to find the solution to my problem, allready browse topics relative to GDI+, but as I am not skilled at all with, can't figure out my error, so please any help appreciated :) it

I leeched most a code from WideBoyDixon that die a wonderfulle function to create 3D Pie, here the code cleaned of what I didn't need

3D pie adapted from https://www.autoitscript.com/forum/topic/97241-3d-pie-chart/ 

; Get a darker version of a colour by extracting the RGB components
Func _GetDarkerColour($Colour)
    Local $Red, $Green, $Blue
    $Red = (BitAND($Colour, 0xff0000) / 0x10000) - 40
    $Green = (BitAND($Colour, 0x00ff00) / 0x100) - 40
    $Blue = (BitAND($Colour, 0x0000ff)) - 40
    If $Red < 0 Then $Red = 0
    If $Green < 0 Then $Green = 0
    If $Blue < 0 Then $Blue = 0
    Return ($Red * 0x10000) + ($Green * 0x100) + $Blue
EndFunc ;==>_GetDarkerColour

; Draw the pie chart
Func _DrawPie($Pie_Margin, $PIE_DEPTH, $PIE_AREA, $Pie_Diameter, $ahBrush, $ahPen, $hGraphics, $hBitmap, $hBuffer, $PI, $Percentage, $Aspect, $rotation, $style = 1, $holesize = 100)
    $Aspect = 0.6
    Local $nCount, $nTotal = 0, $angleStart, $angleSweep, $X, $Y
    Local $pieLeft = $Pie_Margin
    Local $pieTop = $PIE_AREA / 2 - ($Pie_Diameter / 2) * $Aspect
    Local $pieWidth = $Pie_Diameter, $pieHeight = $Pie_Diameter * $Aspect, $hPath

    ; Total up the values
    For $nCount = 0 To UBound($Percentage) - 1
        $nTotal += $Percentage[$nCount]
    Next
    ; Set the fractional values
    For $nCount = 0 To UBound($Percentage) - 1
        $Percentage[$nCount] /= $nTotal
    Next
    ; Make sure we don't over-rotate
    $rotation = Mod($rotation, 360)
    ; Clear the graphics buffer
    _GDIPlus_GraphicsClear($hBuffer, 0xFFF0F0F0)
    ; Set the initial angles based on the fractional values
    Local $Angles[UBound($Percentage) + 1]
    For $nCount = 0 To UBound($Percentage)
        If $nCount = 0 Then
            $Angles[$nCount] = $rotation
        Else
            $Angles[$nCount] = $Angles[$nCount - 1] + ($Percentage[$nCount - 1] * 360)
        EndIf
    Next
    ; Adjust the angles based on the aspect
    For $nCount = 0 To UBound($Percentage)
        $X = $Pie_Diameter * Cos($Angles[$nCount] * $PI / 180)
        $Y = $Pie_Diameter * Sin($Angles[$nCount] * $PI / 180)
        $Y -= ($Pie_Diameter - $pieHeight) * Sin($Angles[$nCount] * $PI / 180)
        If $X = 0 Then
            $Angles[$nCount] = 90 + ($Y < 0) * 180
        Else
            $Angles[$nCount] = ATan($Y / $X) * 180 / $PI
        EndIf
        If $X < 0 Then $Angles[$nCount] += 180
        If $X >= 0 And $Y < 0 Then $Angles[$nCount] += 360
        $X = $Pie_Diameter * Cos($Angles[$nCount] * $PI / 180)
        $Y = $pieHeight * Sin($Angles[$nCount] * $PI / 180)
    Next
    ; Decide which pieces to draw first and last
    Local $nStart = -1, $nEnd = -1
    For $nCount = 0 To UBound($Percentage) - 1
        $angleStart = Mod($Angles[$nCount], 360)
        $angleSweep = Mod($Angles[$nCount + 1] - $Angles[$nCount] + 360, 360)
        If $angleStart <= 270 And ($angleStart + $angleSweep) >= 270 Then
            $nStart = $nCount
        EndIf
        If ($angleStart <= 90 And ($angleStart + $angleSweep) >= 90) _
                Or ($angleStart <= 450 And ($angleStart + $angleSweep) >= 450) Then
            $nEnd = $nCount
        EndIf
        If $nEnd >= 0 And $nStart >= 0 Then ExitLoop
    Next
    ; Draw the first piece
    _DrawPiePiece( $ahBrush, $ahPen,$hBuffer, $pieLeft, $pieTop, $pieWidth, $pieHeight, $PIE_DEPTH * (1 - $Aspect), $nStart, $Angles)
    ; Draw pieces "to the right"
    $nCount = Mod($nStart + 1, UBound($Percentage))
    While $nCount <> $nEnd
        _DrawPiePiece( $ahBrush, $ahPen,$hBuffer, $pieLeft, $pieTop, $pieWidth, $pieHeight, $PIE_DEPTH * (1 - $Aspect), $nCount, $Angles)
        $nCount = Mod($nCount + 1, UBound($Percentage))
    WEnd
    ; Draw pieces "to the left"
    $nCount = Mod($nStart + UBound($Percentage) - 1, UBound($Percentage))
    While $nCount <> $nEnd
        _DrawPiePiece( $ahBrush, $ahPen,$hBuffer, $pieLeft, $pieTop, $pieWidth, $pieHeight, $PIE_DEPTH * (1 - $Aspect), $nCount, $Angles)
        $nCount = Mod($nCount + UBound($Percentage) - 1, UBound($Percentage))
    WEnd
    ; Draw the last piece
    _DrawPiePiece( $ahBrush, $ahPen,$hBuffer, $pieLeft, $pieTop, $pieWidth, $pieHeight, $PIE_DEPTH * (1 - $Aspect), $nEnd, $Angles)
    ; Now draw the bitmap on to the device context of the window
    _GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap, 0, 0)
EndFunc ;==>_DrawPie

Func _DrawPiePiece( $ahBrush, $ahPen, $hGraphics, $iX, $iY, $iWidth, $iHeight, $iDepth, $nCount, $Angles)
    Local $hPath, $fDrawn = False
    Local $iStart = Mod($Angles[$nCount], 360), $iSweep = Mod($Angles[$nCount + 1] - $Angles[$nCount] + 360, 360)

    ; Draw side
    $hPath = _GDIPlus_PathCreate()
    If $iStart < 180 And ($iStart + $iSweep > 180) Then
        _GDIPlus_PathAddArc($hPath, $iX, $iY, $iWidth, $iHeight, $iStart, 180 - $iStart)
        _GDIPlus_PathAddArc($hPath, $iX, $iY + $iDepth, $iWidth, $iHeight, 180, $iStart - 180)
        _GDIPlus_PathCloseFigure($hPath)
        _GDIPlus_GraphicsFillPath($hGraphics, $hPath, $ahBrush[$nCount][1])
        _GDIPlus_GraphicsDrawPath($hGraphics, $hPath, $ahPen[$nCount])
        $fDrawn = True
    EndIf
    If $iStart + $iSweep > 360 Then
        _GDIPlus_PathAddArc($hPath, $iX, $iY, $iWidth, $iHeight, 0, $iStart + $iSweep - 360)
        _GDIPlus_PathAddArc($hPath, $iX, $iY + $iDepth, $iWidth, $iHeight, $iStart + $iSweep - 360, 360 - $iStart - $iSweep)
        _GDIPlus_PathCloseFigure($hPath)
        _GDIPlus_GraphicsFillPath($hGraphics, $hPath, $ahBrush[$nCount][1])
        _GDIPlus_GraphicsDrawPath($hGraphics, $hPath, $ahPen[$nCount])
        $fDrawn = True
    EndIf
    If $iStart < 180 And (Not $fDrawn) Then
        _GDIPlus_PathAddArc($hPath, $iX, $iY, $iWidth, $iHeight, $iStart, $iSweep)
        _GDIPlus_PathAddArc($hPath, $iX, $iY + $iDepth, $iWidth, $iHeight, $iStart + $iSweep, -$iSweep)
        _GDIPlus_PathCloseFigure($hPath)
        _GDIPlus_GraphicsFillPath($hGraphics, $hPath, $ahBrush[$nCount][1])
        _GDIPlus_GraphicsDrawPath($hGraphics, $hPath, $ahPen[$nCount])
    EndIf
    _GDIPlus_PathDispose($hPath)

    ; Draw top
    _GDIPlus_GraphicsFillPie($hGraphics, $iX, $iY, $iWidth, $iHeight, $iStart, $iSweep, $ahBrush[$nCount][0])
    _GDIPlus_GraphicsDrawPie($hGraphics, $iX, $iY, $iWidth, $iHeight, $iStart, $iSweep, $ahPen[$nCount])
EndFunc

My not working code

Display only the first time the pie expected, but when i toggle from ta1 to 2 then to 1 it doesn't appear again 

#include <GDIPlus.au3>
#include <WinAPI.au3>
#include <GUISlider.au3>
#include <GUIConstants.au3>
#include <WindowsConstants.au3>
#include <Date.au3>
#include <Array.au3>

; Controls the size of the pie and also the depth
Global Const $Pie_Diameter = 150
Global Const $Pie_Margin = 30;  $Pie_Diameter * 0.025
Global Const $PIE_DEPTH = $Pie_Diameter * 0.2
Global Const $PIE_AREA = $Pie_Diameter + 2 * $Pie_Margin

 ;Random data for values and colours
Global Const $NUM_VALUES = 3
Global $aChartValue [$NUM_VALUES] = [70,30,10]
Global $aChartColour [$NUM_VALUES] = [0xFF5555, 0x55FF55, 0x5555FF] ;[$NUM_VALUES]
Global Const $PI = ATan(1) * 4

; Start GDI+
_GDIPlus_Startup()

; Create the brushes and pens
Global $ahBrush[$NUM_VALUES][2], $ahPen[$NUM_VALUES]
For $i = 0 To $NUM_VALUES - 1
    $ahBrush[$i][0] = _GDIPlus_BrushCreateSolid(BitOR(0xff000000, $aChartColour[$i]))
    $ahBrush[$i][1] = _GDIPlus_BrushCreateSolid(BitOR(0xff000000, _GetDarkerColour($aChartColour[$i])))
    $ahPen[$i] = _GDIPlus_PenCreate(BitOR(0xff000000, _GetDarkerColour(_GetDarkerColour($aChartColour[$i]))))
Next

 ;Create the GUI with sliders to control the aspect, rotation, style and hole size (for donuts)
Global $hMainGUI = GUICreate("Pie Chart", $PIE_AREA + 200, $PIE_AREA + 200, Default, Default)
GUISetState ( @SW_SHOW, $hMainGUI)

; Child GUI1
$hChild1    = GUICreate("", 370, 215, 15, 40, BitOr($WS_CHILD, $WS_TABSTOP), $WS_EX_CONTROLPARENT, $hMainGUI)
GUICtrlSetBkColor(-1, 0xEE8844)
;$nGraphic1  = GuiCtrlCreateGraphic(100, 100, 100,100)
GUISetState ( @SW_SHOW, $hChild1)

; Child GUI2
$hChild2    = GUICreate("", 370, 215, 15, 40, BitOr($WS_CHILD, $WS_TABSTOP), $WS_EX_CONTROLPARENT, $hMainGUI)
GUISetBkColor(0x887788)
;$nGraphic2  = GuiCtrlCreateGraphic(100, 100, 100, 100)

GUISwitch($hMainGUI)
$nTab       = GUICtrlCreateTab(10, 10, 400, 300)
$nTabitem1  = GUICtrlCreateTabItem("Tab1")
$nTabitem2  = GUICtrlCreateTabItem("Tab2")
GUICtrlCreateTabItem("")
GUICtrlSetState($nTabitem1, $GUI_SHOW)

; Set up GDI+
;Global $hDC = _WinAPI_GetDC($hChild2)
;Global $hGraphics = _GDIPlus_GraphicsCreateFromHDC($hChild2)
Global $hGraphics = _GDIPlus_GraphicsCreateFromHWND ( $hChild1 )
Global $hBitmap = _GDIPlus_BitmapCreateFromGraphics($PIE_AREA, $PIE_AREA, $hGraphics)
Global $hBuffer = _GDIPlus_ImageGetGraphicsContext($hBitmap)
_GDIPlus_GraphicsSetSmoothingMode($hBuffer, 2)

_DrawPie($Pie_Margin, $PIE_DEPTH, $PIE_AREA, $Pie_Diameter, $ahBrush, $ahPen, $hGraphics, $hBitmap, $hBuffer, $PI, $aChartValue, 0.6, 0, False, 200 )
;_DrawPie ( $aChartValue, 0.6, 0, False, 200 )
; Wait until the user quits

While 1
    $Msg = GUIGetMsg()
    
    Switch $Msg
        Case $GUI_EVENT_CLOSE
            ExitLoop
            
        Case $nTab
            Switch GUICtrlRead($nTab) 
                Case 0
                    GUISetState(@SW_HIDE, $hChild2)
                    GUISetState(@SW_SHOW, $hChild1)
            
                Case 1
                    GUISetState(@SW_HIDE, $hChild1)
                    GUISetState(@SW_SHOW, $hChild2)
            EndSwitch
    EndSwitch
    Sleep ( 10 )
WEnd
; Release the resources
For $i = 0 To UBound($aChartColour) - 1
    _GDIPlus_PenDispose($ahPen[$i])
    _GDIPlus_BrushDispose($ahBrush[$i][0])
    _GDIPlus_BrushDispose($ahBrush[$i][1])
Next
_GDIPlus_GraphicsDispose($hBuffer)
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_GraphicsDispose($hGraphics)
;_WinAPI_ReleaseDC($hMainGUI, $hDC)

; Shut down GDI+
_GDIPlus_Shutdown()

 ;Done
Exit

Thank to any skilled GDI+ helper :)

Regards

Edited by Ebola57
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Ebola57 Wayfarer

Ebola57

Posted
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Posted

Thank you very much Zedna

Learnt of a bit about redrawing graphic/bitmap

In my case this code is the key while toggling tab 

_WinAPI_RedrawWindow($hChild1, 0, 0, $RDW_UPDATENOW)
_GDIPlus_GraphicsDrawImage($hGraphics, $hBitmap, 0, 0)

 

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