controlp5/examples/extra/ControlP5canvasDrawIntoCanvas/ControlP5canvasDrawIntoCanvas.pde

73 lines
1.5 KiB
Plaintext

/**
* ControlP5 DrawIntoCanvas
*
* this example demonstrates how to draw into a Canvas.
* Click and drag the mouse to show and draw into the Canvas.
*
* by Andreas Schlegel, 2011
* www.sojamo.de/libraries/controlp5
*
*/
import controlP5.*;
ControlP5 cp5;
Canvas cc;
// your controlWindowCanvas class
class MyCanvas extends Canvas {
boolean mousePressed;
int mouseX, mouseY;
public void update(PApplet theApplet) {
mousePressed = theApplet.mousePressed;
mouseX = theApplet.mouseX;
mouseY = theApplet.mouseY;
}
public void draw(PGraphics theApplet) {
theApplet.background(255);
// a rectangle will be drawn if the mouse has been
// pressed inside the main sketch window.
// mousePressed here refers to the mousePressed
// variable of your main sketch
if(mousePressed) {
theApplet.fill(255,0,0);
theApplet.rect(10,10,100,100);
theApplet.fill(0);
theApplet.ellipse(mouseX,mouseY,20,20);
}
// will draw a rectangle into the controlWindow
// if the mouse has been pressed inside the controlWindow itself.
// theApplet.mousePressed here refers to the
// mousePressed variable of the controlWindow.
if(mousePressed) {
theApplet.fill(0);
theApplet.rect(10,10,100,100);
theApplet.fill(255,0,0);
theApplet.ellipse(mouseX,mouseY,20,20);
}
}
}
void setup() {
size(400,400);
frameRate(30);
cp5 = new ControlP5(this);
cc = new MyCanvas();
cc.pre();
cp5.addCanvas(cc);
}
void draw(){
background(0);
}