Prevent mouse event propagation

[dionysiusmarquis]

Hi,

if you're using ofxDatGui with the default openFrameworks camera the mouse events are bubling through. Because of that you will still control the camera rotation while changing a slider value for example.

My current "hack" is this:

ofAddListener(ofEvents().mousePressed, this, &myClass::mousePressed, OF_EVENT_ORDER_BEFORE_APP);

bool myClass::mousePressed(ofMouseEventArgs &mouse) {
    float width = this->getWidth();
    float height = footer->getY() + footer->getHeight();

    float x = this->getPosition().x;
    float y = this->getPosition().y;

    return (mouse.x >= x && mouse.x <= x + width && mouse.y >= y && mouse.y <= y + height);
}

It uses the footer to determine the current menu size.

Maybe there could be a native option to prevent mouse event bubbling.

[braitsch]

This has come up before so I just added a gui->isMouseDown() method which will return true if the mouse is pressed on an interactive area of a component. You can use this to prevent mouse events from penetrating through the gui (which now detects events before the app) via the following:

void ofApp::update()
{
    if (ofGetMousePressed() && gui->getMouseDown() == false){
        // let the app handle the mouse event //
    }
}

Also just FYI guis have a getHeight() method in addition to getWidth() so you shouldn't have to rely on the footer to calculate a gui's height.

Let me know if this helps.

[marc-antimodular]

My simple solution, for active controls:

void ofApp::update(){
    if ( gui->getMouseDown() )
        camera.disableMouseInput();
    else
        camera.enableMouseInput();