57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
#pragma once
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#include <luna/Result.h>
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#include <luna/Types.h>
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#include <ui/Color.h>
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#include <ui/Point.h>
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#include <ui/Rect.h>
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namespace ui
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{
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/**
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* @brief A drawable surface.
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*/
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struct Canvas
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{
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int width;
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int height;
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int stride;
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u8* ptr;
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/**
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* @brief Create a new Canvas object.
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*
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* @param ptr The memory to use for the canvas. It must be of at least width * height * 4 bytes of length.
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* @param width The width of the canvas.
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* @param height The height of the canvas.
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* @return Canvas The new Canvas object.
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*/
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static Canvas create(u8* ptr, int width, int height);
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/**
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* @brief Return a new Canvas that represents a subsection of the current one.
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*
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* @param rect The dimensions of the new canvas. If these exceed the bounds of the current canvas, they will be
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* clamped.
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* @return Canvas The new Canvas object.
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*/
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Canvas subcanvas(Rect rect);
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/**
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* @brief Return the dimensions of the current canvas.
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*
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* @return Rect This canvas's dimensions, as a Rect object.
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*/
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Rect rect()
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{
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return Rect { .pos = { 0, 0 }, .width = width, .height = height };
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}
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/**
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* @brief Fill the entire canvas with one color.
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*
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* @param color The color to use.
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*/
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void fill(Color color);
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};
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};
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