BBjDrawPanel

Description

In BBj 16.0 and higher, the BBjDrawPanel is the drawing surface associated with a BBjWindow.

Creation

BBjAPI > BBjSysGui > BBjWindow > BBjDrawPanel

A BBjDrawPanel is created through the following BBjWindow method:

Return Value	Method
BBjDrawPanel	getDrawPanel()

Methods of BBjDrawPanel

Return Value	Method
void	clearDrawing()
void	clearDrawing(BBjColor color)
void	drawArc(int x, int y, int r, double aspect, double startAngle, double endAngle, boolean pieFlag)
void	drawArrow(int x, int y, boolean head, boolean tail)
void	drawEllipse(int x, int y, int width, int height)
void	drawImage(BBjImageimage, int x1, int y1, int x2, int y2)
void	drawLine(int x1, int y1, int x2, int y2)
void	drawLineTo(int x, int y)
void	drawPoint(int x, int y)
void	drawPolygon(java.util.List list)
void	drawPolyline(java.util.List list)
void	drawRect(int x, int y, int width, int height)
void	drawText(int x, int y, string text)
BBjImage	getDrawPanelImage()
BBjColor	getFillColor()
int	getFillType()
BBjFont	getFont()
int	getPattern()
BBjColor	getPenColor()
int	getPenWidth()
BBjColor	getTextColor()
boolean	getTrack()
void	moveTo(int x, int y)
void	pop()
void	push()
void	setBackColor(BBjColor color)
void	setDrawMode(int mode)
void	setDrawUnits(int units)
void	setEnableRepaint(boolean enable)
void	setFillColor(BBjColor color)
void	setFillType(int fillType)
void	setFont(BBjFont font!)
void	setOpaque(int style)
void	setPattern(int pattern)
void	setPenColor(BBjColor color)
void	setPenWidth(int width)
void	setRound(int x, int y)
void	setScribble(boolean scribble)
void	setTextColor(BBjColor color)

Remarks

Prior to BBj 16.0, BBjDrawPanel functionality was only available using the drawing mnemonics. The corresponding mnemonics, if any, are noted in the See Also section of each method.

Example

Copy

BBjDrawPanel Example

rem ' BBjDrawPanel
sysgui = unt
open (sysgui)"X0"
sysgui! = bbjapi().getSysGui()
title$ = "BBjDrawPanel"
window! = sysgui!.addWindow(25,25,1200,750,title$,$00090003$)
window!.setCallback(window!.ON_CLOSE,"eoj")
window!.setTrack(0)
window!.setFont(sysgui!.makeFont("Arial",8,0))
drawpanel! = window!.getDrawPanel()
drawpanel!.setPenColor(BBjColor.BLUE)
drawpanel!.setFillColor(BBjColor.GREEN)
drawpanel!.setTextColor(BBjColor.BLUE)
drawpanel!.setRound(5,5)
drawpanel!.drawText(10,25,"Shape")
drawpanel!.drawText(10,55,"drawPoint")
drawpanel!.drawText(10,100,"drawRect")
drawpanel!.drawText(10,175,"drawArc")
drawpanel!.drawText(10,225,"drawArc")
drawpanel!.drawText(10,325,"drawEllipse")
drawpanel!.drawText(10,400,"drawArrow")
drawpanel!.drawText(10,450,"drawArrow")
drawpanel!.drawText(10,500,"drawLine")
drawpanel!.drawText(10,575,"drawPolygon")
drawpanel!.drawText(10,675,"drawPolyline")
for i = 0 to 10
  x = i * 100 + 25
  drawpanel!.setFillType(i)
  drawpanel!.setPattern(i)
  drawpanel!.setPenWidth((i+1)*0.25)
  drawpanel!.drawPoint(x+100,50)
  drawpanel!.drawText(x+85,25,"setFillType("+str(i)+")")
  drawpanel!.drawRect(x+75,75,75,50)
  r1 = i * Math.PI / 2
  r2 = r1 + Math.PI / 2
  drawpanel!.drawArc(x+100,175,25,1,r1,r2,1)
  drawpanel!.drawArc(x+100,225,25,1,r1,r2,0)
  drawpanel!.drawEllipse(x+75,275,75,50)
  adj = (i-5) * 5
  drawpanel!.moveTo(x+75,400)
  drawpanel!.drawArrow(x+150,400+adj,0,1)
  drawpanel!.moveTo(x+75,450)
  drawpanel!.drawArrow(x+150,450+adj,1,0)
  drawpanel!.drawLine(x+75,500,x+150,525)
  points = i + 3
  list! = bbjapi().makeVector()
  for point = 0 to points-1
    angle = point * 2 * Math.PI / points
    px = int(40 * cos(angle) + 110 + x)
    py = int(40 * sin(angle) + 600)
    list!.add(px)
    list!.add(py)
  next point
  drawpanel!.drawPolygon(list!)
  list! = bbjapi().makeVector()
  for point = 0 to points-1
    angle = point * 2 * Math.PI / points
    px = int(40 * cos(angle) + 110 + x)
    py = int(40 * sin(angle) + 700)
    list!.add(px)
    list!.add(py)
  next point
  drawpanel!.drawPolyline(list!)
next i
process_events
eoj:
release