Mattora | Flutter Paint Planner App with Laravel Key Proxy

Ship a paint-planning app your users open with a tape measure in their hand: seventeen finished screens, a room that unfolds into a drawn elevation as the numbers are typed, and a tin list costed at their own prices. Light and dark themes, GetX architecture, offline documentation, a Laravel key proxy and a one-page product website in the same download.

Why this one

• A drawing, not a form: the room’s walls unfold into one scaled elevation with the doors and windows cut out of it, and it redraws as the measurements are typed.
• A tin list someone can take to the shop: litres divided by tin size is not a shopping list, so the plan is a bounded search over the sizes and prices the user entered and prefers the cheapest basket with the least left in the tin.
• Tested, not just screenshotted: 259 tests pass on the app and 43 on the back end, and the driver walks all seventeen screens in light and dark before every release.

Four walls, unfolded flat

Each wall keeps its own width and its own height, and every door and window is cut out of the wall it belongs to, so the painted area is the wall the decorator will actually roll. Type a number and the drawing redraws under your hand. It is a CustomPainter over the measurements, not an image.