void Gource::mousetrace(Frustum& frustum, float dt) {
GLuint buffer[512];
GLint viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
glSelectBuffer(512, buffer);
glDepthFunc(GL_LEQUAL);
glEnable(GL_DEPTH_TEST);
(void) glRenderMode(GL_SELECT);
glInitNames();
glPushName(0);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPickMatrix((GLdouble) mousepos.x, (GLdouble) (viewport[3]-mousepos.y), 1.0f, 1.0f, viewport);
gluPerspective(90.0f, (GLfloat)display.width/(GLfloat)display.height, 0.1f, camera.getZFar());
camera.look();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
for(std::map<std::string,RUser*>::iterator it = users.begin(); it!=users.end(); it++) {
it->second->drawSimple(dt);
}
glDisable(GL_TEXTURE_2D);
glColor4f(1.0, 1.0, 1.0, 1.0);
root->drawSimple(frustum, dt);
glMatrixMode(GL_MODELVIEW);
mouse_hits = glRenderMode(GL_RENDER);
RFile* fileSelection = 0;
RUser* userSelection = 0;
if (mouse_hits > 0) {
int choice = buffer[3];
GLuint depth = buffer[1];
for (int loop = 1; loop < mouse_hits; loop++) {
if (buffer[loop*4+1] < depth) {
choice = buffer[loop*4+3];
depth = buffer[loop*4+1];
}
}
if(choice != 0) {
selectionDepth = depth;
std::map<int, RFile*>::iterator filetest;
std::map<int, RUser*>::iterator usertest;
if((filetest = tagfilemap.find(choice)) != tagfilemap.end()) {
fileSelection = filetest->second;
}
else if((usertest = tagusermap.find(choice)) != tagusermap.end()) {
userSelection = usertest->second;
}
}
}
glDisable(GL_DEPTH_TEST);
// is over a file
if(fileSelection != 0) {
// un hover a user
if(hoverUser != 0) {
hoverUser->setMouseOver(false);
hoverUser = 0;
}
if(fileSelection != hoverFile) {
//deselect previous selection
if(hoverFile !=0) hoverFile->setMouseOver(false);
//select new
fileSelection->setMouseOver(true);
hoverFile = fileSelection;
}
// is over a user
} else if(userSelection != 0) {
// un hover a file
if(hoverFile != 0) {
hoverFile->setMouseOver(false);
hoverFile = 0;
}
if(userSelection != hoverUser) {
//deselect previous selection
if(hoverUser !=0) hoverUser->setMouseOver(false);
//select new
userSelection->setMouseOver(true);
hoverUser = userSelection;
}
} else {
if(hoverFile!=0) hoverFile->setMouseOver(false);
if(hoverUser!=0) hoverUser->setMouseOver(false);
hoverFile=0;
hoverUser=0;
}
if(mouseclicked) {
if(hoverUser!=0) selectUser(hoverUser);
else if(hoverFile!=0) selectFile(hoverFile);
else selectUser(0);
}
}
