BBjPrintPreview::scrollDown

rem ' BBjPrintPreview::scrollDown

let myAPI! = BBjAPI()

rem 'Open the SysGui device
SYSGUI = UNT
OPEN (SYSGUI)"X0"

rem 'Obtain the instance of the BBjSysGui object
let mySysGui! = myAPI!.getSysGui()

rem 'Set addWindow param values
X = 10
Y = 10
WIDTH = 800
HEIGHT = 600
TITLE$="BBjPrintPreview::scrollDown"

rem 'Set the current context
mySysGui!.setContext(0)

rem 'Create a window
myWindow! = mySysGui!.addWindow(X,Y,WIDTH,HEIGHT,TITLE$,$00010003$)

rem 'Add a print preview control to the window
myPreview! = myWindow!.addPrintPreview(101,50,100,700,450,"",$$)
myPreview!.fitToWidth()

myImageManager! = mySysGui!.getImageManager()

myFirst! = myWindow!.addMenuButton(102,50,50,24,24,"",$$)
first$ = "com/basis/bbj/images/first.gif"
first! = myImageManager!.loadImageFromServerJar(first$)
myFirst!.setImage(first!)
myFirst!.setToolTipText("First page")

myPrevious! = myWindow!.addMenuButton(103,75,50,24,24,"",$$)
previous$ = "com/basis/bbj/images/prev.gif"
previous! = myImageManager!.loadImageFromServerJar(previous$)
myPrevious!.setImage(previous!)
myPrevious!.setToolTipText("Previous page")

myNext! = myWindow!.addMenuButton(104,100,50,24,24,"",$$)
next$ = "com/basis/bbj/images/next.gif"
next! = myImageManager!.loadImageFromServerJar(next$)
myNext!.setImage(next!)
myNext!.setToolTipText("Next page")

myLast! = myWindow!.addMenuButton(105,125,50,24,24,"",$$)
last$ = "com/basis/bbj/images/last.gif"
last! = myImageManager!.loadImageFromServerJar(last$)
myLast!.setImage(last!)
myLast!.setToolTipText("Last page")

myDown! = myWindow!.addMenuButton(106,150,50,24,24,"",$$)
pagedown$ = "com/basis/bbj/images/pagedown.gif"
pagedown! = myImageManager!.loadImageFromServerJar(pagedown$)
myDown!.setImage(pagedown!)
myDown!.setToolTipText("Scroll down")

myUp! = myWindow!.addMenuButton(107,175,50,24,24,"",$$)
pageup$ = "com/basis/bbj/images/pageup.gif"
pageup! = myImageManager!.loadImageFromServerJar(pageup$)
myUp!.setImage(pageup!)
myUp!.setToolTipText("Scroll up")

myMessage! = myWindow!.addStaticText(108,700,50,50,24,"",$8000$)

form! = myAPI!.getBBjPrinter(0).getForm(0)
for page = 0 to 9
    page! = form!.createPage()
    for para = 0 to 19
        para! = page!.newParagraph()
        para!.setPosition(para,para*20)
        para!.setHorizontalFill(1)
        para$ = "Sample text for print job "+str(para)
        para!.setText(para$)
        page!.add(para!)
    next para
next page
form!.preview(myPreview!)

gosub PageNumber

rem 'Register the CALLBACK routines
CALLBACK(ON_CLOSE,APP_CLOSE,mySysGui!.getContext())
CALLBACK(ON_BUTTON_PUSH,FIRST_PAGE,mySysGui!.getContext(),myFirst!.getID())
CALLBACK(ON_BUTTON_PUSH,PREV_PAGE,mySysGui!.getContext(),myPrevious!.getID())
CALLBACK(ON_BUTTON_PUSH,NEXT_PAGE,mySysGui!.getContext(),myNext!.getID())
CALLBACK(ON_BUTTON_PUSH,LAST_PAGE,mySysGui!.getContext(),myLast!.getID())
CALLBACK(ON_BUTTON_PUSH,SCROLL_DOWN,mySysGui!.getContext(),myDown!.getID())
CALLBACK(ON_BUTTON_PUSH,SCROLL_UP,mySysGui!.getContext(),myUp!.getID())

rem 'Process Events
process_events

rem 'Callback routine called when the user closes the application window
APP_CLOSE:
release

FIRST_PAGE:
    myPreview!.firstPage()
    gosub PageNumber
return

PREV_PAGE:
    myPreview!.previousPage()
    gosub PageNumber
return

NEXT_PAGE:
    myPreview!.nextPage()
    gosub PageNumber
return

LAST_PAGE:
    myPreview!.lastPage()
    gosub PageNumber
return

SCROLL_DOWN:
    myPreview!.scrollDown()
    gosub PageNumber
return

SCROLL_UP:
    myPreview!.scrollUp()
    gosub PageNumber
return

PageNumber:
    myMessage!.setText("Page: "+STR(myPreview!.getIndex()+1))
return