overte-HifiExperiments/interface/src/ui/ClipboardOverlay.cpp
2014-02-21 15:47:40 -08:00

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1.2 KiB
C++

//
// ClipboardOverlay.cpp
// hifi
//
// Created by Clément Brisset on 2/20/14.
// Copyright (c) 2014 High Fidelity, Inc. All rights reserved.
//
// include this before QGLWidget, which includes an earlier version of OpenGL
#include "InterfaceConfig.h"
#include <QGLWidget>
#include <SharedUtil.h>
#include "ClipboardOverlay.h"
#include "../Application.h"
static int lastVoxelCount = 0;
ClipboardOverlay::ClipboardOverlay() {
}
ClipboardOverlay::~ClipboardOverlay() {
}
void ClipboardOverlay::render() {
if (!_visible) {
return; // do nothing if we're not visible
}
VoxelSystem* voxelSystem = Application::getInstance()->getSharedVoxelSystem();
VoxelTree* clipboard = Application::getInstance()->getClipboard();
if (voxelSystem->getTree() != clipboard) {
voxelSystem->changeTree(clipboard);
}
glPushMatrix();
glTranslatef(_position.x, _position.y, _position.z);
glScalef(_size, _size, _size);
// We only force the redraw when the clipboard content has changed
if (lastVoxelCount != clipboard->getOctreeElementsCount()) {
voxelSystem->forceRedrawEntireTree();
lastVoxelCount = clipboard->getOctreeElementsCount();
}
voxelSystem->render();
glPopMatrix();
}