void show_menu(string message) {
using namespace nanogui;
glfwSetInputMode(mGLFWWindow, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
glActiveTexture(GL_TEXTURE0);
FormHelper *gui = new FormHelper(this);
window = gui->addWindow({0,0}, "Main Menu");
gui->setFixedSize({125, 20});
gui->addGroup(message);
gui->addVariable("Server address", hostname);
gui->addVariable("Username", username);
gui->addVariable("Password", password);
gui->addButton("Connect", [&](){
if (username != "" &&
password != "" &&
hostname != "") {
hide_menu();
setup_connection();
}
});
window->center();
performLayout(mNVGContext);
menu_state = true;
}
int main(int /* argc */, char ** /* argv */) {
glfwInit();
glfwSetTime(0);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_SAMPLES, 0);
glfwWindowHint(GLFW_RED_BITS, 8);
glfwWindowHint(GLFW_GREEN_BITS, 8);
glfwWindowHint(GLFW_BLUE_BITS, 8);
glfwWindowHint(GLFW_ALPHA_BITS, 8);
glfwWindowHint(GLFW_STENCIL_BITS, 8);
glfwWindowHint(GLFW_DEPTH_BITS, 24);
glfwWindowHint(GLFW_RESIZABLE, GL_TRUE);
// Create a GLFWwindow object
GLFWwindow* window = glfwCreateWindow(800, 800, "example3", nullptr, nullptr);
if (window == nullptr) {
std::cout << "Failed to create GLFW window" << std::endl;
glfwTerminate();
return -1;
}
glfwMakeContextCurrent(window);
int width, height;
glfwGetFramebufferSize(window, &width, &height);
glViewport(0, 0, width, height);
glfwSwapInterval(0);
glfwSwapBuffers(window);
// Create a nanogui screen and pass the glfw pointer to initialize
screen = new Screen();
screen->initialize(window, true);
// Create nanogui gui
bool enabled = true;
FormHelper *gui = new FormHelper(screen);
ref<Window> nanoguiWindow = gui->addWindow(Eigen::Vector2i(10, 10), "Form helper example");
gui->addGroup("Basic types");
gui->addVariable("bool", bvar)->setTooltip("Test tooltip.");
gui->addVariable("string", strval);
gui->addGroup("Validating fields");
gui->addVariable("int", ivar)->setSpinnable(true);
gui->addVariable("float", fvar)->setTooltip("Test.");
gui->addVariable("double", dvar)->setSpinnable(true);
gui->addGroup("Complex types");
gui->addVariable("Enumeration", enumval, enabled)->setItems({ "Item 1", "Item 2", "Item 3" });
gui->addVariable("Color", colval);
gui->addGroup("Other widgets");
gui->addButton("A button", []() { std::cout << "Button pressed." << std::endl; })->setTooltip("Testing a much longer tooltip, that will wrap around to new lines multiple times.");;
screen->setVisible(true);
screen->performLayout();
nanoguiWindow->center();
glfwSetCursorPosCallback(window,
[](GLFWwindow *w, double x, double y) {
screen->cursorPosCallbackEvent(x, y);
}
);
glfwSetMouseButtonCallback(window,
[](GLFWwindow *w, int button, int action, int modifiers) {
screen->mouseButtonCallbackEvent(button, action, modifiers);
}
);
glfwSetKeyCallback(window,
[](GLFWwindow *w, int key, int scancode, int action, int mods) {
screen->keyCallbackEvent(key, scancode, action, mods);
}
);
glfwSetCharCallback(window,
[](GLFWwindow *w, unsigned int codepoint) {
screen->charCallbackEvent(codepoint);
}
);
glfwSetDropCallback(window,
[](GLFWwindow *w, int count, const char **filenames) {
screen->dropCallbackEvent(count, filenames);
}
);
glfwSetScrollCallback(window,
[](GLFWwindow *w, double x, double y) {
screen->scrollCallbackEvent(x, y);
}
);
glfwSetFramebufferSizeCallback(window,
[](GLFWwindow* w, int width, int height) {
screen->resizeCallbackEvent(width, height);
}
);
// Game loop
while (!glfwWindowShouldClose(window)) {
// Check if any events have been activated (key pressed, mouse moved etc.) and call corresponding response functions
glfwPollEvents();
glClearColor(0.2f, 0.25f, 0.3f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
// Draw nanogui
screen->drawContents();
screen->drawWidgets();
glfwSwapBuffers(window);
}
// Terminate GLFW, clearing any resources allocated by GLFW.
glfwTerminate();
return 0;
}
int main(int /* argc */, char ** /* argv */)
{
SDL_Init(SDL_INIT_VIDEO); // Initialize SDL2
SDL_Window *window; // Declare a pointer to an SDL_Window
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION,2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION,0);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 1);
int winWidth = 1024;
int winHeight = 600;
// Create an application window with the following settings:
window = SDL_CreateWindow(
"An SDL2 window", // const char* title
SDL_WINDOWPOS_UNDEFINED, // int x: initial x position
SDL_WINDOWPOS_UNDEFINED, // int y: initial y position
winWidth, // int w: width, in pixels
winHeight, // int h: height, in pixels
SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN // Uint32 flags: window options, see docs
);
// Check that the window was successfully made
if(window==NULL){
// In the event that the window could not be made...
std::cout << "Could not create window: " << SDL_GetError() << '\n';
SDL_Quit();
return 1;
}
auto context = SDL_GL_CreateContext(window);
SDL_Renderer *renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED );
Screen *screen = new Screen( window, Vector2i(winWidth, winHeight), "NanoGUI test");
bool enabled = true;
FormHelper *gui = new FormHelper(screen);
ref<Window> rwindow = gui->addWindow(Eigen::Vector2i(10, 10), "Form helper example");
gui->addGroup("Basic types");
gui->addVariable("bool", bvar);
gui->addVariable("string", strval);
gui->addGroup("Validating fields");
gui->addVariable("int", ivar);
gui->addVariable("float", fvar);
gui->addVariable("double", dvar);
gui->addGroup("Complex types");
gui->addVariable("Enumeration", enumval, enabled)
->setItems({"Item 1", "Item 2", "Item 3"});
gui->addVariable("Color", colval);
gui->addGroup("Other widgets");
gui->addButton("A button", [](){ std::cout << "Button pressed." << std::endl; });
screen->setVisible(true);
screen->performLayout();
rwindow->center();
bool quit = false;
try
{
//nanogui::init();
//Event handler
SDL_Event e;
//nanogui::ref<ExampleApplication> app = new ExampleApplication();
while( !quit )
{
//Handle events on queue
while( SDL_PollEvent( &e ) != 0 )
{
//User requests quit
if( e.type == SDL_QUIT )
{
quit = true;
}
screen->onEvent( e );
}
SDL_SetRenderDrawColor(renderer, 0xd3, 0xd3, 0xd3, 0xff );
SDL_RenderClear( renderer );
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
screen->drawAll();
// SDL_SetRenderDrawColor(renderer, 0xff, 0, 0, 0xff );
// SDL_Rect r{ 0, 0, 20, 30 };
// SDL_RenderFillRect( renderer, &r );
//Update screen
SDL_GL_SwapWindow(window);
}
//nanogui::shutdown();
}
catch (const std::runtime_error &e)
{
std::string error_msg = std::string("Caught a fatal error: ") + std::string(e.what());
#if defined(_WIN32)
MessageBoxA(nullptr, error_msg.c_str(), NULL, MB_ICONERROR | MB_OK);
#else
std::cerr << error_msg << endl;
#endif
return -1;
}
return 0;
}