Enable scrolling in FBO for ofxDatGui

[ewgnr]

Here an simple open frameworks example how to use it

ofApp.cpp:

---

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup()
{
myGui = new ofxDatGui(ofxDatGuiAnchor::TOP_RIGHT);
myGui->enableFboMode(true, ofGetWidth(), ofGetHeight());

for (int i = 0; i < 12; i++)
{
	textInputCount = i;
	myGui->addTextInput("** input " + ofToString(textInputCount), "nested input field");
}

myGui->onTextInputEvent(this, &ofApp::onTextInputEvent);
ofAddListener(ofEvents().mouseScrolled, this, &ofApp::mouseScrolled);

}

//--------------------------------------------------------------
void ofApp::update()
{
}

//--------------------------------------------------------------
void ofApp::draw()
{
ofTexture& guiTex = myGui->getFboTexture();
guiTex.draw(0, 0); // or use as texture
}

//--------------------------------------------------------------
void ofApp::keyPressed(int key)
{
std::cout << "Key pressed: " << key << std::endl;

if (key == 'a' || key == 'A')
{
	textInputCount++;
	myGui->addTextInput("** input " + ofToString(textInputCount), "nested input field");
}

}

//--------------------------------------------------------------
void ofApp::onTextInputEvent(ofxDatGuiTextInputEvent e)
{
cout << "onTextInputEvent: " << e.target->getLabel() << " " << e.target->getText() << endl;
}

//--------------------------------------------------------------
void ofApp::mouseScrolled(ofMouseEventArgs& args)
{
float scrollAmount = args.scrollY * 10.0f; // Adjust speed

myGui->scroll(scrollAmount);

}

ofApp.h:

---

#pragma once

#include "ofMain.h"
#include "ofxDatGui.h"

class ofApp : public ofBaseApp
{

public:
	void setup();
	void update();
	void draw();

	void keyPressed(int key);
	void onTextInputEvent(ofxDatGuiTextInputEvent e);
	void mouseScrolled(ofMouseEventArgs& args);

	size_t textInputCount;
	ofxDatGui* myGui;

};