Refactored into modules.

MHR_Overlay/UI/drawing.lua

@@ -0,0 +1,100 @@
+local drawing = {};
+local config;
+
+drawing.font = nil;
+
+function drawing.init_font()
+	drawing.font = d2d.create_font(config.current_config.global_settings.font.family, config.current_config.global_settings.font.size, config.current_config.global_settings.font.bold, config.current_config.global_settings.font.italic);
+end
+
+function drawing.color_to_argb(color)
+	local alpha = (color >> 24) & 0xFF;
+	local red = (color >> 16) & 0xFF;
+	local green = (color >> 8) & 0xFF;
+	local blue = color & 0xFF;
+
+	return alpha, red, green, blue;
+end
+
+function drawing.argb_to_color(alpha, red, green, blue)
+    return 0x1000000 * alpha + 0x10000 * red + 0x100 * green + blue;
+end
+
+function drawing.scale_color_opacity(color, scale)
+	local  alpha, red, green, blue = drawing.color_to_argb(color);
+	local new_alpha = math.floor(alpha * scale);
+	if new_alpha < 0 then new_alpha = 0; end
+	if new_alpha > 255 then new_alpha = 255; end
+
+	return drawing.argb_to_color(new_alpha, red, green, blue);
+end
+
+function drawing.scale_bar_opacity(bar, scale)
+	if bar == nil or scale == nil then
+		return;
+	end
+
+	if not bar.visibility then
+		return;
+	end
+	
+	bar.colors.foreground = drawing.scale_color_opacity(bar.colors.foreground, scale);
+	bar.colors.background = drawing.scale_color_opacity(bar.colors.background, scale);
+end
+
+function drawing.scale_label_opacity(label, scale)
+	if label == nil or scale == nil then
+		return;
+	end
+
+	if not label.visibility then
+		return;
+	end
+	
+	label.color = drawing.scale_color_opacity(label.color, scale);
+	label.shadow.color = drawing.scale_color_opacity(label.shadow.color, scale);
+end
+
+function drawing.draw_label(label, position, ...)
+	if label == nil or not label.visibility then
+		return;
+	end
+	
+	local text = string.format(label.text, table.unpack({...}));
+	if label.shadow.visibility then
+		d2d.text(drawing.font, text, position.x + label.offset.x + label.shadow.offset.x,
+			position.y + label.offset.y + label.shadow.offset.y, label.shadow.color);
+	end
+	d2d.text(drawing.font, text, position.x + label.offset.x, position.y + label.offset.y, label.color);
+end
+
+function drawing.draw_bar(bar, position, percentage)
+	if bar == nil then
+		return;
+	end
+
+	if not bar.visibility then
+		return;
+	end
+
+	if percentage > 1 then 
+		percentage = 1;
+	end
+
+	local foreground_width = bar.size.width * percentage;
+	local background_width = bar.size.width - foreground_width;
+
+	-- foreground
+	d2d.fill_rect(position.x + bar.offset.x, position.y + bar.offset.y, foreground_width, bar.size.height,
+		bar.colors.foreground);
+
+	-- background
+	d2d.fill_rect(position.x + foreground_width + bar.offset.x, position.y + bar.offset.y, background_width,
+		bar.size.height, bar.colors.background);
+end
+
+function drawing.init_module()
+	config = require("MHR_Overlay.Misc.config");
+end
+
+return drawing;