public static Font GetCorrectedFont(Graphics g, String name, int style, int size) {
Font newFont = new Font(name, style, size);
FontMetrics metrics = g.getFontMetrics(newFont);
int fontHeight = metrics.getHeight();
float ratio = (float) fontHeight / (float) size;
if (ratio < 0.9 || ratio > 1.1) {
size = (int) (size / ratio + 0.5);
if (size < 5) size = 5;
newFont = new Font(name, style, size);
}
return newFont;
}
/**
* draw arrows for the directions of movement and destination waypoint
*
* @param ctrl the control to paint on
* @param moveDir degrees of movement
* @param destDir degrees of destination waypoint
*/
public void doDraw(Graphics g, int options) {
g.setColor(Color.White);
g.fillRect(0, 0, location.width, location.height);
int fontSize = location.width / 17;
mainFont = GetCorrectedFont(g, "Verdana", Font.BOLD, fontSize);
g.setFont(mainFont);
fm = g.getFontMetrics(mainFont);
lineHeight = fm.getHeight() + 1;
roseRadius = java.lang.Math.min((location.width * 3) / 4, location.height) / 2;
if (northCentered) {
// scale(location.width, location.height, null, 0);
// super.doDraw(g, options);
drawFullRose(
g,
0,
new Color(255, 255, 255),
new Color(200, 200, 200),
new Color(255, 255, 255),
new Color(200, 200, 200),
new Color(150, 150, 150),
new Color(75, 75, 75),
1.0f,
true,
true);
} else {
int radius = (int) (roseRadius * 0.75f);
g.setPen(new Pen(new Color(150, 150, 150), Pen.SOLID, 3));
g.drawEllipse(
location.width / 2 - radius, location.height / 2 - radius, 2 * radius, 2 * radius);
}
drawArrows(g);
drawWayPointData(g);
drawGpsData(g);
drawLuminaryData(g);
drawGpsStatus(g);
}
private void drawRosePart(
Graphics g,
float angle,
Color colLeft,
Color colRight,
Color colBorder,
Color colText,
float scale,
float innerScale,
String strDir,
boolean bDrawText) {
float angleRad = angle * (float) java.lang.Math.PI / 180;
float angleRadText = (angle + 7.5f) * (float) java.lang.Math.PI / 180;
int centerX = location.width / 2, centerY = location.height / 2;
float arrowLength = roseRadius * scale;
float halfArrowWidth = arrowLength * innerScale;
int[] pointsX = new int[3];
int[] pointsY = new int[3];
pointsX[0] = centerX;
pointsY[0] = centerY;
pointsX[1] = centerX + new Float(arrowLength * java.lang.Math.sin(angleRad)).intValue();
pointsY[1] = centerY - new Float(arrowLength * java.lang.Math.cos(angleRad)).intValue();
pointsX[2] =
centerX
+ new Float(halfArrowWidth * java.lang.Math.sin(angleRad - java.lang.Math.PI / 4.0))
.intValue();
pointsY[2] =
centerY
- new Float(halfArrowWidth * java.lang.Math.cos(angleRad - java.lang.Math.PI / 4.0))
.intValue();
g.setPen(new Pen(colBorder, Pen.SOLID, 1));
g.setBrush(new Brush(colLeft, Brush.SOLID));
g.fillPolygon(pointsX, pointsY, 3);
pointsX[2] =
centerX
+ new Float(halfArrowWidth * java.lang.Math.sin(angleRad + java.lang.Math.PI / 4.0))
.intValue();
pointsY[2] =
centerY
- new Float(halfArrowWidth * java.lang.Math.cos(angleRad + java.lang.Math.PI / 4.0))
.intValue();
g.setBrush(new Brush(colRight, Brush.SOLID));
g.fillPolygon(pointsX, pointsY, 3);
if (bDrawText) {
int tempFontSize = new Float(scale * mainFont.getSize()).intValue();
Font tempFont = new Font(mainFont.getName(), Font.BOLD, tempFontSize);
g.setFont(tempFont);
FontMetrics tempFm = g.getFontMetrics(tempFont);
float stringHeight = tempFm.getHeight();
float stringWidth = tempFm.getTextWidth(strDir);
float stringGap =
(float) java.lang.Math.sqrt(stringHeight * stringHeight + stringWidth * stringWidth);
float stringPosition = arrowLength - stringGap / 2.0f;
g.setColor(colText);
g.drawText(
strDir,
centerX
+ new Float(stringPosition * java.lang.Math.sin(angleRadText) - stringWidth / 2.0f)
.intValue(),
centerY
- new Float(stringPosition * java.lang.Math.cos(angleRadText) + stringHeight / 2.0f)
.intValue());
g.setFont(mainFont);
}
}
