Image support

example/example.cpp

@@ -1,7 +1,33 @@
 #include <quip.h>
 
 int main() {
-    Quip::Window window("Quip Window", 800, 600);
+    bool goingDown = true, goingRight = true;
+    Quip::Window window("Quip Window", 800, 600, [&window, &goingDown, &goingRight]() {
+        auto* imagewidget = window.getChild("image");
+        auto& image = std::get<Quip::Widget::Image>(*imagewidget);
+        if (goingDown) {
+            image.ypos ++;
+            if (image.ypos + image.height > window.height) {
+                goingDown = false;
+            }
+        } else {
+            image.ypos --;
+            if (image.ypos < 0) {
+                goingDown = true;
+            }
+        }
+        if (goingRight) {
+            image.xpos ++;
+            if (image.xpos + image.width > window.width) {
+                goingRight = false;
+            }
+        } else {
+            image.xpos --;
+            if (image.xpos < 0) {
+                goingRight = true;
+            }
+        }
+    });
     int buttonPresses = 0;
     window.addChild("textLabel", Quip::Widget::TextLabel("Hi there!", 10, 10));
     window.addChild("button", Quip::Widget::Button("Click me!", [&window, &buttonPresses]() {
@@ -11,5 +37,6 @@ int main() {
             std::get<Quip::Widget::TextLabel>(*widget).text = "You have clicked the button " + std::to_string(buttonPresses) + " times!";
         }
     }, 10, 50));
+    window.addChild("image", Quip::Widget::Image("dingus.png", 300, 300, 100, 100));
     return window.run();
 }