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https://github.com/mudita/MuditaOS.git
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e6fdf0e22c
Changes draw command implementation to properly follow
command design pattern. All drawing commands have been
moved to separate inheriting draw commands from renderer.
Other changes:
- New draw methods overloads have been added to pixel renderer.
Now pixel rendering methods are in one class.
- Simplified draw commands naming.
- Changed variable naming in draw commands to be more verbose.
- Changed {x,y} pairs to Points where possible.
61 lines
1.7 KiB
C++
61 lines
1.7 KiB
C++
// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#pragma once
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#include "Color.hpp"
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#include "Common.hpp"
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#include "DrawCommand.hpp"
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namespace gui
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{
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class Context;
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} // namespace gui
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namespace gui::renderer
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{
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enum class LineExpansionDirection
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{
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Up = 1,
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Down = (1 << 1),
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Left = (1 << 2),
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Right = (1 << 3)
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};
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class LineRenderer
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{
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public:
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struct DrawableStyle
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{
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Length penWidth{1};
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Color color{ColorFullBlack};
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LineExpansionDirection direction = LineExpansionDirection::Down;
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static auto from(const DrawLine &command) -> DrawableStyle;
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DrawableStyle &setExpansionDirection(LineExpansionDirection value) noexcept
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{
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direction = value;
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return *this;
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}
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};
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static void draw(Context *ctx, Point start, Point end, Color color);
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static void drawHorizontal(Context *ctx, Point start, Length width, const DrawableStyle &style);
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static void drawVertical(Context *ctx, Point start, Length height, const DrawableStyle &style);
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static void draw45deg(Context *ctx, Point start, Length length, const DrawableStyle &style, bool toRight);
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private:
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static void drawSlanting(Context *ctx,
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Point start,
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Point end,
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Length penWidth,
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Color color,
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LineExpansionDirection expansionDirection);
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};
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} // namespace gui::renderer
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