protected void drawToolTipOutline(
DrawContext dc, double width, double height, ToolTipAttributes attributes) {
GL2 gl = dc.getGL().getGL2(); // GL initialization checks for GL2 compatibility.
this.applyColor(dc, attributes.getOutlineColor(), attributes.getOutlineOpacity());
gl.glLineWidth((float) getOutlineWidth());
// Draw a line loop around the background rectangle. Inset the lines slightly to compensate for
// OpenGL's line
// rasterization algorithm. We want the line to straddle the rectangle pixels.
double inset = 0.5;
gl.glBegin(GL2.GL_LINE_LOOP);
gl.glVertex2d(inset, inset);
gl.glVertex2d(width - inset, inset);
gl.glVertex2d(width - inset, height - inset);
gl.glVertex2d(inset, height - inset);
gl.glEnd();
}
private void recursiveDraw(
int level, double x1, double y1, double x2, double y2, double x3, double y3) {
if (level < 1) {
return;
}
gl.glBegin(GL2.GL_LINE_LOOP);
gl.glVertex2d(x1, y1);
gl.glVertex2d(x2, y2);
gl.glVertex2d(x3, y3);
gl.glEnd();
for (int i = 0; i < transitions; i += 1) {
x1 = rotate_scale_xx[i] * x1 + rotate_scale_xy[i] * y1 + trans_x[i];
y1 = rotate_scale_yx[i] * x1 + rotate_scale_yy[i] * y1 + trans_y[i];
x2 = rotate_scale_xx[i] * x2 + rotate_scale_xy[i] * y2 + trans_x[i];
y2 = rotate_scale_yx[i] * x2 + rotate_scale_yy[i] * y2 + trans_y[i];
x3 = rotate_scale_xx[i] * x3 + rotate_scale_xy[i] * y3 + trans_x[i];
y3 = rotate_scale_yx[i] * x3 + rotate_scale_yy[i] * y3 + trans_y[i];
recursiveDraw(level - 1, x1, y1, x2, y2, x3, y3);
}
}