3778558608
This patch improves the `Text_painter` utility that is commonly used by native Genode components to render text: - Support for subpixel positioning - Generic interface for accessing font data - Basic UTF-8 support Since the change decouples the font format from the 'Text_painter' and changes the API to use the sub-pixel accurate 'Text_painter::Position' type, all users of the utility require an adaptation. Fixes #2716
63 lines
1.4 KiB
C++
63 lines
1.4 KiB
C++
/*
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* \brief Nitpicker background
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* \author Norman Feske
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* \date 2006-06-22
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*/
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/*
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* Copyright (C) 2006-2017 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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#ifndef _BACKGROUND_H_
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#define _BACKGROUND_H_
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#include <nitpicker_gfx/box_painter.h>
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#include "session_component.h"
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#include "clip_guard.h"
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namespace Nitpicker { struct Background; }
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struct Nitpicker::Background : private Texture_base, View_component
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{
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static Color default_color() { return Color(25, 37, 50); }
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Color color = default_color();
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/*
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* The background uses no texture. Therefore
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* we can pass a null pointer as texture argument
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* to the Session constructor.
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*/
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Background(View_owner &owner, Area size)
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:
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Texture_base(Area(0, 0)),
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View_component(owner, View_component::NOT_TRANSPARENT,
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View_component::BACKGROUND, 0)
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{
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View_component::geometry(Rect(Point(0, 0), size));
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}
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/******************************
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** View_component interface **
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******************************/
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int frame_size(Focus const &) const override { return 0; }
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void frame(Canvas_base &, Focus const &) const override { }
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void draw(Canvas_base &canvas, Font const &, Focus const &) const override
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{
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Rect const view_rect = abs_geometry();
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Clip_guard clip_guard(canvas, view_rect);
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canvas.draw_box(view_rect, color);
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}
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};
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#endif /* _BACKGROUND_H_ */
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