Add canvas UI node

src/graphics/ui/elements/Canvas.cpp

@@ -0,0 +1,19 @@
+#include "Canvas.hpp"
+
+#include "graphics/core/Batch2D.hpp"
+#include "graphics/core/DrawContext.hpp"
+#include "graphics/core/Texture.hpp"
+
+gui::Canvas::Canvas(ImageFormat inFormat, glm::uvec2 inSize) : UINode(inSize) {
+    ImageData data {inFormat, inSize.x, inSize.y};
+    mTexture = Texture::from(&data);
+}
+
+void gui::Canvas::draw(const DrawContext& pctx, const Assets& assets) {
+    auto pos = calcPos();
+    auto col = calcColor();
+
+    auto batch = pctx.getBatch2D();
+    batch->texture(mTexture.get());
+    batch->rect(pos.x, pos.y, size.x, size.y, 0, 0, 0, {}, false, true, col);
+}