void scrPointCloud::begin()
{
ofPushStyle();
//temporarily store the viewport
glGetIntegerv(GL_VIEWPORT, _viewport_temp);
//set the viewport to our screen only
int boundsx,boundsy,boundswidth,boundsheight;
getLiveBounds(boundsx, boundsy, boundswidth, boundsheight);
boundsy = ofGetHeight()-boundsy-boundsheight;
glViewport(boundsx, boundsy, boundswidth, boundsheight);
//camera
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
gluPerspective(50.0f, float(boundswidth)/float(boundsheight), 0.1f, 10.0f);
gluLookAt(0, 0, -distance, 0, 0, 0, 0, 1, 0);
//modelview
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glRotatef(spin.x, 1, 0, 0);
glRotatef(spin.y, 0, 1, 0);
glTranslatef(translate.x, translate.y, translate.z);
glEnable(GL_DEPTH_TEST);
glPointSize(pointSize);
}
void scrBase::getLiveBounds(int &x, int &y, int &w, int &h) {
ofRectangle liveBounds = getLiveBounds();
x = liveBounds.x;
y = liveBounds.y;
w = liveBounds.width;
h = liveBounds.height;
}
void scrBase::drawChrome() {
int x, y, width, height;
getLiveBounds(x, y, width, height);
int x2, y2;
x2 = x+width; y2 = y+height;
//
// BORDER
//
ofPushStyle();
ofNoFill();
ofSetLineWidth(GUI_INTERFACE_BORDER_LINE_WIDTH);
ofSetColor(255,255,255);
int inset=GUI_INTERFACE_BORDER_LINE_WIDTH/2;
//top,bottom,left,right
ofLine(x, y+inset, x2, y+inset);
ofLine(x, y2-inset, x2, y2-inset);
ofLine(x+inset, y, x+inset, y2);
ofLine(x2-inset, y, x2-inset, y2);
ofPopStyle();
//
//CAPTION
//
ofPushStyle();
ofSetColor(255,255,255);
ofSetLineWidth(0);
ofFill();
ofRectangle boundBox;
boundBox.x = x;
boundBox.y = y;
boundBox.width = caption.length() * 10 + 6;
boundBox.height = 16;
ofRect(boundBox);
ofPopStyle();
ofPushStyle();
ofSetColor(0, 0, 0);
ofDrawBitmapString(caption, x+3, y+14);
ofPopStyle();
}
void scrPointCloud::mouseDragged(int x, int y, int dx, int dy, int button)
{
int boundsx, boundsy, boundswidth, boundsheight;
getLiveBounds(boundsx, boundsy, boundswidth, boundsheight);
if (button==0)
{
spin.x += float(dy) / float(boundsheight) * 360.0f;
spin.y -= float(dx) / float(boundswidth) * 360.0f;
spin.x = ofClamp(spin.x, -180, 180);
} else {
distance +=float(dy) / float(boundsheight) * 4.0f;
distance = ofClamp(distance, 0.1, 10);
translate.z +=float(dx) / float(boundswidth) * 2.0f;
}
}
void scrBase::draw() {
if (enabled) {
if (_lock != 0)
if (!_lock->tryLock())
return;
drawContent();
ofRectangle liveBounds = getLiveBounds();
ofNotifyEvent(evtDraw, liveBounds, this);
if (_lock != 0)
_lock->unlock();
}
if (_hasChrome && g_isInterfaceEnabled)
drawChrome();
}
void scrPointCloud::end()
{
//clear world states
glDisable(GL_DEPTH_TEST);
//clear matricies
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
//let's get our full viewport back
glViewport(_viewport_temp[0], _viewport_temp[1],
_viewport_temp[2], _viewport_temp[3]);
int x, y, w, h;
getLiveBounds(x,y,w,h);
ofDrawBitmapString(ofToString(_nPoints), x + 10, y + 30);
}
ofVec2f scrBase::normaliseMouse(float x, float y) {
ofRectangle b = getLiveBounds();
return ofVec2f((x-b.x) / b.width,
(y-b.y) / b.height);
}
void scrBase::transformMouse(float mouseX, float mouseY, float &screenX, float &screenY) {
ofRectangle liveBounds = getLiveBounds();
screenX = (mouseX - float(liveBounds.x)) / liveBounds.width;
screenY = (mouseY - float(liveBounds.y)) / liveBounds.height;
}
bool scrBase::isHit(float x, float y) {
return getLiveBounds().inside(x, y);
}
