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LibGfx: Rename from LibDraw :^)
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215 changed files with 291 additions and 291 deletions
133
Libraries/LibGfx/Painter.h
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133
Libraries/LibGfx/Painter.h
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Color.h"
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#include "Point.h"
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#include "Rect.h"
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#include "Size.h"
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#include <AK/String.h>
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#include <AK/Utf8View.h>
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#include <LibGfx/TextAlignment.h>
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#include <LibGfx/TextElision.h>
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namespace Gfx {
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class CharacterBitmap;
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class GlyphBitmap;
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class Bitmap;
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class Font;
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class Emoji;
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class Painter {
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public:
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explicit Painter(Gfx::Bitmap&);
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~Painter();
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void clear_rect(const Rect&, Color);
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void fill_rect(const Rect&, Color);
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void fill_rect_with_gradient(const Rect&, Color gradient_start, Color gradient_end);
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void draw_rect(const Rect&, Color, bool rough = false);
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void draw_bitmap(const Point&, const CharacterBitmap&, Color = Color());
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void draw_bitmap(const Point&, const GlyphBitmap&, Color = Color());
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void draw_ellipse_intersecting(const Rect&, Color, int thickness = 1);
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void set_pixel(const Point&, Color);
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void draw_line(const Point&, const Point&, Color, int thickness = 1, bool dotted = false);
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void draw_scaled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&, const Rect& src_rect);
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void blit(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity = 1.0f);
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void blit_dimmed(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
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void draw_tiled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&);
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void blit_offset(const Point&, const Gfx::Bitmap&, const Rect& src_rect, const Point&);
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void blit_scaled(const Rect&, const Gfx::Bitmap&, const Rect&, float, float);
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void draw_text(const Rect&, const StringView&, const Font&, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);
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void draw_text(const Rect&, const StringView&, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);
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void draw_glyph(const Point&, char, Color);
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void draw_glyph(const Point&, char, const Font&, Color);
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void draw_emoji(const Point&, const Gfx::Bitmap&, const Font&);
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void draw_glyph_or_emoji(const Point&, u32 codepoint, const Font&, Color);
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const Font& font() const { return *state().font; }
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void set_font(const Font& font) { state().font = &font; }
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enum class DrawOp {
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Copy,
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Xor
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};
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void set_draw_op(DrawOp op) { state().draw_op = op; }
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DrawOp draw_op() const { return state().draw_op; }
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void add_clip_rect(const Rect& rect);
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void clear_clip_rect();
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Rect clip_rect() const { return state().clip_rect; }
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void translate(int dx, int dy) { state().translation.move_by(dx, dy); }
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void translate(const Point& delta) { state().translation.move_by(delta); }
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Point translation() const { return state().translation; }
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Gfx::Bitmap* target() { return m_target.ptr(); }
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void save() { m_state_stack.append(m_state_stack.last()); }
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void restore()
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{
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ASSERT(m_state_stack.size() > 1);
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m_state_stack.take_last();
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}
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protected:
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void set_pixel_with_draw_op(u32& pixel, const Color&);
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void fill_rect_with_draw_op(const Rect&, Color);
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void blit_with_alpha(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
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void blit_with_opacity(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity);
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void draw_pixel(const Point&, Color, int thickness = 1);
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void draw_text_line(const Rect&, const Utf8View&, const Font&, TextAlignment, Color, TextElision);
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struct State {
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const Font* font;
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Point translation;
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Rect clip_rect;
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DrawOp draw_op;
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};
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State& state() { return m_state_stack.last(); }
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const State& state() const { return m_state_stack.last(); }
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Rect m_clip_origin;
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NonnullRefPtr<Gfx::Bitmap> m_target;
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Vector<State, 4> m_state_stack;
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};
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class PainterStateSaver {
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public:
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explicit PainterStateSaver(Painter&);
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~PainterStateSaver();
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private:
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Painter& m_painter;
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};
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}
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