small question.
when adding an element to an svg document i am getting a short delay. ie. it
takes a second or two for the element to appear after the mouse is clicked.
This in it's self is not a major issue but when attempting to draw a free
hand line dragging the mouse to quickly causes gaps to be created in the
line.
am i doing this correctly? is there some code i am missing? can this be
rectified? my code is below and is rather hap hazzard any pointers on
cleaning it up would be appreciated...
kind regards
Danny Browne
public void registerListeners(){
// Set the canvas mouse listeners
svgCanvas.addMouseListener(new java.awt.event.MouseAdapter() {
public void mousePressed(java.awt.event.MouseEvent e) {
statusLabel.setText("Pressed......");
startPoint = e;
}
public void mouseReleased(java.awt.event.MouseEvent e) {
int x = startPoint.getX();
String sx = new Integer(x).toString();
int y = startPoint.getY();
String sy = new Integer(y).toString();
int w = e.getX();
String sw = new Integer(w).toString();
int h = e.getY();
String sh = new Integer(h).toString();
w = w-x;
h = h-y;
paint(sx,sy,sw,sh);
}
});
svgCanvas.addMouseMotionListener(new
java.awt.event.MouseMotionAdapter() {
public void mouseDragged(java.awt.event.MouseEvent e) {
int x = startPoint.getX();
String sx = new Integer(x).toString();
int y = startPoint.getY();
String sy = new Integer(y).toString();
int x2 = e.getX();
String sx2 = new Integer(x2).toString();
int y2 = e.getY();
String sy2 = new Integer(y2).toString();
paint(sx,sy,sx2,sy2);
startPoint = e;
}
});
}
which calls this method paint method.
public void paint (String sx, String sy, String sw, String sh){
toolType = getTool();
if (toolType == 1){
statusLabel.setText("Select Tool Selsected...");
}
else if (toolType == 2){
Document doc = svgCanvas.getSVGDocument();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
// get the root element (the svg element)
Element svgRoot = doc.getDocumentElement();
// create the rectangle
Element line = doc.createElementNS(svgNS, "line");
line.setAttributeNS(null, "x", sx);
line.setAttributeNS(null, "y", sy);
line.setAttributeNS(null, "y2", sw);
line.setAttributeNS(null, "y2", sh);
line.setAttributeNS(null, "style", "stroke:black;stroke-width:2");
//attach the rectangle to the svg root element
svgRoot.appendChild(line);
}
else if (toolType == 3){
statusLabel.setText("Paint Tool Selsected...");
}
else if (toolType == 4){
Document doc = svgCanvas.getSVGDocument();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
statusLabel.setText("w: " +sw+ " h: " +sh+ " x: " +sx+ " y: "
+sy);
// get the root element (the svg element)
Element svgRoot = doc.getDocumentElement();
// create the rectangle
Element line = doc.createElementNS(svgNS, "line");
line.setAttributeNS(null, "x", sx);
line.setAttributeNS(null, "y", sy);
line.setAttributeNS(null, "y2", sw);
line.setAttributeNS(null, "y2", sh);
line.setAttributeNS(null, "style", "stroke:black;stroke-width:2");
//attach the rectangle to the svg root element
svgRoot.appendChild(line);
}
else if (toolType == 5){
Document doc = svgCanvas.getSVGDocument();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
// get the root element (the svg element)
Element svgRoot = doc.getDocumentElement();
// create the rectangle
Element rectangle = doc.createElementNS(svgNS, "rect");
rectangle.setAttributeNS(null, "x", sx);
rectangle.setAttributeNS(null, "y", sy);
rectangle.setAttributeNS(null, "width", sw);
rectangle.setAttributeNS(null, "height", sh);
rectangle.setAttributeNS(null, "fill", "black");
//attach the rectangle to the svg root element
svgRoot.appendChild(rectangle);
}
else if (toolType == 6){
Document doc = svgCanvas.getSVGDocument();
String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
// get the root element (the svg element)
Element svgRoot = doc.getDocumentElement();
// create the rectangle
Element circle = doc.createElementNS(svgNS, "circle");
circle.setAttributeNS(null, "cx", sx);
circle.setAttributeNS(null, "r", "25");
circle.setAttributeNS(null, "cy", sy);
circle.setAttributeNS(null, "style", "fill:crimson");
//attach the rectangle to the svg root element
svgRoot.appendChild(circle);
}
}
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
