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#include <llmr/llmr.hpp>
#include <GLFW/glfw3.h>
#import <Foundation/Foundation.h>
#include <llmr/platform/platform.hpp>
#include <llmr/map/tile.hpp>
class MapView {
public:
MapView() :
dirty(true),
tracking(false),
rotating(false),
last_click(-1),
platform(new llmr::platform(this)),
map(new llmr::map(platform)) {
if (!glfwInit()) {
fprintf(stderr, "Failed to initialize glfw\n");
exit(1);
}
window = glfwCreateWindow(640, 480, "llmr", NULL, NULL);
if (!window) {
glfwTerminate();
fprintf(stderr, "Failed to initialize window\n");
exit(1);
}
glfwMakeContextCurrent(window);
map->setup();
int width, height;
glfwGetWindowSize(window, &width, &height);
map->resize(width, height);
glfwSwapInterval(1);
glfwSetCursorPosCallback(window, mousemove);
glfwSetMouseButtonCallback(window, mouseclick);
glfwSetWindowSizeCallback(window, resize);
glfwSetScrollCallback(window, scroll);
glfwSetWindowUserPointer(window, this);
}
static void scroll(GLFWwindow *window, double xoffset, double yoffset) {
MapView *view = (MapView *)glfwGetWindowUserPointer(window);
double delta = yoffset * 40;
bool is_wheel = delta != 0 && fmod(delta, 4.000244140625) == 0;
double absdelta = delta < 0 ? -delta : delta;
double scale = 2.0 / (1.0 + exp(-absdelta / 100.0));
// Make the scroll wheel a bit slower.
if (!is_wheel) {
scale = (scale - 1.0) / 2.0 + 1.0;
}
// Zooming out.
if (delta < 0 && scale != 0) {
scale = 1.0 / scale;
}
view->map->scaleBy(scale, view->last_x, view->last_y);
}
static void resize(GLFWwindow *window, int width, int height) {
MapView *view = (MapView *)glfwGetWindowUserPointer(window);
view->map->resize(width, height);
}
static void mouseclick(GLFWwindow *window, int button, int action, int modifiers) {
MapView *view = (MapView *)glfwGetWindowUserPointer(window);
if (button == GLFW_MOUSE_BUTTON_RIGHT || (button == GLFW_MOUSE_BUTTON_LEFT && modifiers & GLFW_MOD_CONTROL)) {
view->rotating = action == GLFW_PRESS;
if (view->rotating) {
view->start_x = view->last_x;
view->start_y = view->last_y;
}
} else if (button == GLFW_MOUSE_BUTTON_LEFT) {
view->tracking = action == GLFW_PRESS;
if (action == GLFW_RELEASE) {
double now = glfwGetTime();
if (now - view->last_click < 0.4) {
view->map->scaleBy(2.0, view->last_x, view->last_y);
}
view->last_click = now;
}
}
}
static void mousemove(GLFWwindow *window, double x, double y) {
MapView *view = (MapView *)glfwGetWindowUserPointer(window);
if (view->tracking) {
view->map->moveBy(x - view->last_x, y - view->last_y);
} else if (view->rotating) {
view->map->rotateBy(view->start_x, view->start_y, view->last_x, view->last_y, x, y);
}
view->last_x = x;
view->last_y = y;
}
int run() {
while (!glfwWindowShouldClose(window)) {
if (dirty) {
dirty = render();
glfwSwapBuffers(window);
fps();
}
if (dirty) {
glfwPollEvents();
} else {
glfwWaitEvents();
}
}
return 0;
}
bool render() {
return map->render();
}
void fps() {
static int frames = 0;
static double time_elapsed = 0;
frames++;
double current_time = glfwGetTime();
if (current_time - time_elapsed >= 1) {
fprintf(stderr, "FPS: %4.2f\n", frames / (current_time - time_elapsed));
time_elapsed = current_time;
frames = 0;
}
}
~MapView() {
delete map;
delete platform;
glfwTerminate();
}
public:
bool dirty;
double last_x, last_y;
bool tracking;
double start_x, start_y;
bool rotating;
double last_click;
GLFWwindow *window;
llmr::platform *platform;
llmr::map *map;
};
void llmr::platform::restart() {
((MapView *)obj)->dirty = true;
}
void llmr::platform::request(tile *tile) {
fprintf(stderr, "request %d/%d/%d\n", tile->z, tile->x, tile->y);
fprintf(stderr, "requesting tile\n");
NSString *urlTemplate = @"http://api.tiles.mapbox.com/v3/mapbox.mapbox-streets-v4/%d/%d/%d.vector.pbf";
NSString *urlString = [NSString
stringWithFormat:urlTemplate,
tile->z,
tile->x,
tile->y];
NSURL *url = [NSURL URLWithString:urlString];
NSLog(@"Requesting %@", urlString);
NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection
sendAsynchronousRequest:urlRequest
queue:queue
completionHandler: ^ (NSURLResponse * response,
NSData * data,
NSError * error) {
if (error == nil) {
tile->setData((uint8_t *)[data bytes], [data length]);
if (tile->parse()) {
dispatch_async(dispatch_get_main_queue(), ^ {
((MapView *)obj)->map->tileLoaded(tile);
});
return;
}
}
dispatch_async(dispatch_get_main_queue(), ^ {
((MapView *)obj)->map->tileFailed(tile);
});
}];
}
int main() {
MapView view;
return view.run();
}
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