Render background for labels.

ui/label.cpp

@@ -22,6 +22,7 @@
 
 #include "label.hpp"
 #include "widget.hpp"
+#include "device.hpp"
 
 namespace Granite
 {
@@ -50,13 +51,29 @@ void Label::reconfigure_to_canvas(vec2, vec2)
 
 float Label::render(FlatRenderer &renderer, float layer, vec2 offset, vec2 size)
 {
+	if (bg_color.w > 0.0f)
+	{
+		if (bg_image)
+		{
+			auto *view = renderer.get_device().get_resource_manager().get_image_view_blocking(bg_image);
+			renderer.render_textured_quad(*view,
+			                              vec3(offset, layer), size,
+			                              vec2(0.0f), vec2(view->get_view_width(), view->get_view_height()),
+			                              DrawPipeline::AlphaBlend, bg_color, Vulkan::StockSampler::LinearClamp);
+		}
+		else
+		{
+			renderer.render_quad(vec3(offset, layer), size, bg_color);
+		}
+	}
+
 	auto &ui = *GRANITE_UI_MANAGER();
 	auto &font = ui.get_font(font_size);
-	renderer.render_text(font, text.c_str(), vec3(offset + geometry.margin, layer), size - 2.0f * geometry.margin,
+	renderer.render_text(font, text.c_str(), vec3(offset + geometry.margin, layer - 0.5f), size - 2.0f * geometry.margin,
 	                     color, alignment);
 
 	assert(children.empty());
-	return layer;
+	return layer - 0.5f;
 }
 
 void Label::reconfigure()