add error handling to ui

1 files changed, 38 insertions, 0 deletions

diff --git a/lib/nes/app/ui/screen-error.cc b/lib/nes/app/ui/screen-error.cc
new file mode 100644
index 0000000..67a3244
--- /dev/null
+++ b/lib/nes/app/ui/screen-error.cc
@@ -0,0 +1,38 @@
+#include "nes/app/ui/screen-error.hh"
+#include "nes/app/graphics/renderer.hh"
+#include "nes/app/graphics/color.hh"
+#include "nes/app/input/input-device-keyboard.hh"
+
+namespace nes::app
+{
+	screen_error::screen_error(input_device_keyboard& keyboard)
+		: keyboard_{ keyboard }
+	{
+	}
+
+	auto screen_error::render(renderer& renderer) -> void
+	{
+		// TODO: Nicer box
+		renderer.render_rect(2, 9, 28, 5, color::background_secondary);
+
+		auto const attrs = text_attributes{}
+			.set_alignment(text_alignment::center)
+			.set_ellipsize_mode(ellipsize_mode::end)
+			.set_max_width(26);
+		renderer.render_text_format(16, 10, color::foreground_primary, attrs, "{}:", message_);
+		renderer.render_text(16, 12, to_string(error_), color::foreground_primary, attrs);
+	}
+
+	auto screen_error::process_events() -> action
+	{
+		while (auto const event = keyboard_.poll_event())
+		{
+			if (event == input_event::key_down(key::enter))
+			{
+				return action::close_popup();
+			}
+		}
+
+		return action{};
+	}
+} // namespace nes::app
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