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inc\CreateFontSelectCombo.bas

Uploader:	Eternal_Pain
Datum/Zeit:	19.03.2014 04:44:18
Hinweis: Dieser Quelltext ist Bestandteil des Projekts Windows Easy Gui (WEG), zu dem es auf FreeBASIC-Portal.de eine Projektseite gibt.
Declare Function AddFontSelectCombo(byref ItemHandle as Item, byval FontName as String) as Integer



Sub Item_FontSelectCombo.Destroy()

    ID = "" : Title = ""

    DestroyWindow(whwnd)

    iCount    = 0 : iState    = 0

    wSizeMode = 0 : hSizeMode = 0

    iWidth    = 0 : iHeight   = 0

End Sub



''Callback

Function EnumFontFamiliesExProc(byval lpelfe as ENUMLOGFONTEX ptr, byval lpntme as NEWTEXTMETRICEX ptr, byval FontType as Integer, byval lParam as LPARAM) as Integer

    If (FontType and TRUETYPE_FONTTYPE)=TRUETYPE_FONTTYPE andalso bit(lpntme->ntmTm.ntmFlags,6) Then 'Print "Typ   : TrueType-Font";

        If lpelfe->elfLogFont.lfFaceName[0]<>64 Then AddFontSelectCombo(Cast(Item,lParam), lpelfe->elfLogFont.lfFaceName)

    End If

    return 1

End Function



Function CreateFontSelectCombo(byref ItemHandle as Item, byval px as Integer, byval py as Integer, byval iWidth as Integer = 0, byval iHeight as Integer = 0) as Item

    Dim as UInteger ExStyle = WS_EX_CLIENTEDGE

    Dim as UInteger Style   = WS_CHILD OR WS_VSCROLL OR CBS_AUTOHSCROLL OR CBS_DROPDOWNLIST OR CBS_HASSTRINGS OR WS_TABSTOP OR WS_CLIPSIBLINGS OR CBS_NOINTEGRALHEIGHT OR CBS_OWNERDRAWVARIABLE



    If (ItemHandle = 0) Then return NULL



    Dim as RECT    prect

    Dim as HWND    phwnd

    Dim as Integer rx, ry



    If (ItemHandle -> ID = WindowID) Then

        phwnd = ItemHandle -> whwnd

        rx = px : ry = py

    ElseIf (ItemHandle -> ID = GroupBoxID) Then

        phwnd = GetParent(ItemHandle -> whwnd)

        GetClientRect(ItemHandle -> whwnd, @prect)

        MapWindowPoints(ItemHandle -> whwnd, phwnd, Cast(LPPOINT, @prect),2)

        rx = prect.left + px : ry = prect.top + py

    Else

        LOGSTRING(Time & " | ERROR | Parent is not an valid Item.")

        Return NULL

    End If



    Dim as Item_FontSelectCombo ptr newFontSelectCombo = new Item_FontSelectCombo



    newFontSelectCombo -> whwnd = CreateWindowEx(ExStyle, "COMBOBOX", NULL, Style, rx, ry, iWidth, iHeight, phwnd, NULL, Globals.hInstance, newFontSelectCombo)



    If (newFontSelectCombo -> whwnd = 0) Then

        Delete newFontSelectCombo

        LOGSTRING(Time & " | ERROR | Failed to create " & FontSelectComboID)

        MessageBox(NULL,"Failed to create " & FontSelectComboID, "Error", NULL)

        Return NULL

    End If



    SetWindowLongPtr(newFontSelectCombo -> whwnd, GWLP_USERDATA, Cast(LONG_PTR, newFontSelectCombo))



    newFontSelectCombo -> ID        = FontSelectComboID

    newFontSelectCombo -> Title     = str(newFontSelectCombo -> whwnd)

    newFontSelectCombo -> wSizeMode = IIF(iWidth,0,1)

    newFontSelectCombo -> hSizeMode = IIF(iHeight,0,1)

    newFontSelectCombo -> iWidth    = iWidth

    newFontSelectCombo -> iHeight   = iHeight

    newFontSelectCombo -> iState    = 0

    '- Enum/Add List

    Dim as HDC hDC = GetDC(NULL)

    Dim as LOGFONT lf



    lf.lfCharSet = ANSI_CHARSET'DEFAULT_CHARSET



    EnumFontFamiliesEx( hDC, @lf, cast(any ptr,@EnumFontFamiliesExProc), Cast(LPARAM,newFontSelectCombo), NULL )



    ReleaseDC(NULL, hDC)

    '-

    LOGSTRING(Time & " | INFO  | " & FontSelectComboID & " " & newFontSelectCombo -> Title & " created on " & ItemHandle -> ID & " " & ItemHandle -> Title & ".")



    Globals.ItemList.AddItem(newFontSelectCombo)



    return newFontSelectCombo

End Function



Function AddFontSelectCombo(byref ItemHandle as Item, byval FontName as String) as Integer

    If (ItemHandle = 0) orelse (ItemHandle -> ID <> FontSelectComboID) Then return -1



    Dim as Item_FontSelectCombo ptr FontComboItem = Cast(Item_FontSelectCombo ptr, ItemHandle)

    Dim as Integer expand, iWidth, iHeight, ListHeight

    Dim as RECT     wRECT, cRECT

    Dim as HDC      dDC = GetDC(NULL)

    Dim as HDC      fDC = CreateCompatibleDC(dDC)

    Dim as LOGFONT  lf

    Dim as HFONT    fnt

    Dim as SIZE     fSize

    Dim as String   SubItemID



    lf.lfFaceName = FontName

    fnt = CreateFontIndirect(@lf)



    SelectObject(fDC,fnt)

    GetTextExtentPoint32(fDC,FontName,len(FontName),@fSize)

    DeleteObject(fnt)

    DeleteDC(fDC)

    ReleaseDC(NULL,dDC)



    expand  = GetSystemMetrics(SM_CXVSCROLL)*1.25

    expand += GetSystemMetrics(SM_CXEDGE)*4



    iWidth  = fSize.CX + expand

    iHeight = IIF(fSize.CY>255,255,fSize.CY)



    If FontComboItem -> wSizeMode andalso iWidth  > FontComboItem -> iWidth  Then FontComboItem -> iWidth  = iWidth

    If FontComboItem -> hSizeMode andalso iHeight > FontComboItem -> iHeight Then FontComboItem -> iHeight = iHeight



    GetClientRect(GetParent(FontComboItem -> whwnd), @wRECT)

    GetClientRect(FontComboItem -> whwnd, @cRECT)

    ListHeight = (wRECT.bottom - wRECT.top)

    MapWindowPoints(ItemHandle -> whwnd, GetParent(ItemHandle -> whwnd), Cast(LPPOINT, @wRECT),2)

    ListHeight = ListHeight - (cRECT.bottom-cRECT.top)



    If ((FontComboItem -> iCount+3) * FontComboItem -> iHeight) < ListHeight Then ListHeight = ((FontComboItem -> iCount+3) * FontComboItem -> iHeight)



    FontComboItem -> iCount += 1



    SubItemID = FontName



    SendMessage(FontComboItem -> whwnd, CB_ADDSTRING, NULL, cast(LPARAM,strptr(SubItemID)))



    If SendMessage(FontComboItem -> whwnd, CB_GETCURSEL, NULL, NULL) = -1 Then SendMessage(FontComboItem -> whwnd, CB_SETCURSEL, Cast(WPARAM, 0), NULL)



    MapWindowPoints(FontComboItem -> whwnd, GetParent(FontComboItem -> whwnd), Cast(LPPOINT,@cRECT),2)

    MoveWindow(FontComboItem -> whwnd, cRECT.left, cRECT.top, FontComboItem -> iWidth, ListHeight, TRUE)

    SendMessage(FontComboItem -> whwnd, CB_SETITEMHEIGHT, -1, FontComboItem -> iHeight)

    SendMessage(FontComboItem -> whwnd, CB_SETITEMHEIGHT,  FontComboItem -> iCount - 1, iHeight)



    If FontComboItem -> iState = FALSE Then

        ShowWindow(FontComboItem -> whwnd, SW_SHOW)

        FontComboItem -> iState = TRUE

    End If

End Function