glfw version of sample app

src/map/map.cpp

@@ -0,0 +1,64 @@
+#include <llmr/map/map.hpp>
+#include <llmr/map/tile.hpp>
+
+#include <iostream>
+#include <thread>
+
+using namespace llmr;
+
+map::map(class platform *platform, class painter *painter)
+    : platform(platform),
+      painter(painter),
+      transform(new class transform()) {
+
+    painter->setTransform(transform);
+
+
+    tile *tile = new class tile(0, 0, 0);
+    tiles.push_back(tile);
+    platform->request(tile);
+
+}
+
+map::~map() {
+    delete transform;
+}
+
+
+void map::moveBy(double dx, double dy) {
+    transform->moveBy(dx, dy);
+    platform->restart();
+}
+
+void map::scaleBy(double ds, double cx, double cy) {
+    transform->scaleBy(ds, cx, cy);
+    platform->restart();
+}
+
+
+bool map::render() {
+    painter->clear();
+
+    for (tile *tile : tiles) {
+        // painter->viewport();
+        if (tile->loaded) {
+            painter->render(tile);
+        }
+    }
+
+    return false;
+}
+
+void map::tileLoaded(tile *tile) {
+    platform->restart();
+    // fprintf(stderr, "[%8zx] tile loaded %d/%d/%d\n",
+    //         std::hash<std::thread::id>()(std::this_thread::get_id()),
+    //         tile->z, tile->x, tile->y);
+    // schedule rerender
+}
+
+void map::tileFailed(tile *tile) {
+    fprintf(stderr, "[%8zx] tile failed to load %d/%d/%d\n",
+            std::hash<std::thread::id>()(std::this_thread::get_id()),
+            tile->z, tile->x, tile->y);
+}