Static Scrolling Text

[Gintaras]

horizontal
Function dlg_static_scroll_hor

Code:

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\Dialog_Editor
function# hDlg message wParam lParam
if(hDlg) goto messages

if(!ShowDialog("dlg_static_scroll_hor" &dlg_static_scroll_hor)) ret

;BEGIN DIALOG
;0 "" 0x90C80A44 0x100 0 0 223 135 "Dialog"
;1 Button 0x54030001 0x4 120 116 48 14 "OK"
;2 Button 0x54030000 0x4 170 116 48 14 "Cancel"
;3 Static 0x54000000 0x20000 4 4 114 13 ""
;END DIALOG
;DIALOG EDITOR: "" 0x2030004 "" "" ""

ret
;messages
int-- x
str-- s
sel message
,case WM_INITDIALOG
,s="DrawTextW mb.dc @s -1 &r DT_EXPANDTABS|DT_NOPREFIX"
,SetTimer hDlg 1 10 0
,x=-1000000000 ;;begin scroll from right
,
,case WM_TIMER
,sel wParam
,,case 1
,,int h=id(3 hDlg)
,,RECT r; GetClientRect(h &r)
,,__MemBmp mb.Create(r.right r.bottom)
,,FillRect mb.dc &r COLOR_BTNFACE+1
,,SetBkMode mb.dc TRANSPARENT
,,int f0=SelectObject(mb.dc GetStockObject(DEFAULT_GUI_FONT))
,,
,,r.left=x; x-1 ;;scroll by 1 pixel
,,RECT rr; DrawTextW mb.dc @s -1 &rr DT_EXPANDTABS|DT_NOPREFIX|DT_CALCRECT ;;calc text width
,,if(x<=-rr.right) x=r.right ;;repeat when all text scrolled
,,
,,DrawTextW mb.dc @s -1 &r DT_EXPANDTABS|DT_NOPREFIX ;;draw text
,,
,,SelectObject(mb.dc f0)
,,
,,int dc=GetDC(h)
,,BitBlt dc 0 0 r.right r.bottom mb.dc 0 0 SRCCOPY
,,ReleaseDC(h dc)
,
,case WM_DESTROY
,case WM_COMMAND goto messages2
ret
;messages2
sel wParam
,case IDOK
,case IDCANCEL
ret 1

vertical
Function dlg_static_scroll

Code:

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\Dialog_Editor
function# hDlg message wParam lParam
if(hDlg) goto messages

if(!ShowDialog("dlg_static_scroll" &dlg_static_scroll)) ret

;BEGIN DIALOG
;0 "" 0x90C80A44 0x100 0 0 223 135 "Dialog"
;1 Button 0x54030001 0x4 120 116 48 14 "OK"
;2 Button 0x54030000 0x4 170 116 48 14 "Cancel"
;3 Static 0x54000000 0x20000 4 4 118 32 ""
;END DIALOG
;DIALOG EDITOR: "" 0x2030004 "" "" ""

ret
;messages
int-- y
str-- s
sel message
,case WM_INITDIALOG
,s.getmacro("dlg_static_scroll"); s.fix(findl(s 8))
,s.rtrim("[]")
,y=-1000000000 ;;begin scroll from bottom
,SetTimer hDlg 1 50 0
,
,case WM_TIMER
,sel wParam
,,case 1
,,int h=id(3 hDlg)
,,RECT r; GetClientRect(h &r)
,,__MemBmp mb.Create(r.right r.bottom)
,,FillRect mb.dc &r COLOR_BTNFACE+1
,,SetBkMode mb.dc TRANSPARENT
,,int f0=SelectObject(mb.dc GetStockObject(DEFAULT_GUI_FONT))
,,
,,r.top=y; y-1 ;;scroll by 1 pixel
,,RECT rr; rr.right=r.right
,,DrawTextW mb.dc @s -1 &rr DT_WORDBREAK|DT_EXPANDTABS|DT_NOPREFIX|DT_CALCRECT ;;calc text height
,,if(y<=-rr.bottom) y=r.bottom ;;repeat when all text scrolled
,,
,,DrawTextW mb.dc @s -1 &r DT_WORDBREAK|DT_EXPANDTABS|DT_NOPREFIX
,,
,,;if line wrapping not needed, remove DT_WORDBREAK| from both DrawTextW
,,
,,SelectObject(mb.dc f0)
,,
,,int dc=GetDC(h)
,,BitBlt dc 0 0 r.right r.bottom mb.dc 0 0 SRCCOPY
,,ReleaseDC(h dc)
,,
,case WM_DESTROY
,case WM_COMMAND goto messages2
ret
;messages2
sel wParam
,case IDOK
,case IDCANCEL
ret 1