1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "Color.h"
#include "Point.h"
#include "Rect.h"
#include "Size.h"
#include <AK/String.h>
#include <AK/Utf8View.h>
#include <LibDraw/TextAlignment.h>
#include <LibDraw/TextElision.h>
namespace Gfx {
class CharacterBitmap;
class GlyphBitmap;
class Bitmap;
class Font;
class Emoji;
class Painter {
public:
explicit Painter(Gfx::Bitmap&);
~Painter();
void clear_rect(const Rect&, Color);
void fill_rect(const Rect&, Color);
void fill_rect_with_gradient(const Rect&, Color gradient_start, Color gradient_end);
void draw_rect(const Rect&, Color, bool rough = false);
void draw_bitmap(const Point&, const CharacterBitmap&, Color = Color());
void draw_bitmap(const Point&, const GlyphBitmap&, Color = Color());
void draw_ellipse_intersecting(const Rect&, Color, int thickness = 1);
void set_pixel(const Point&, Color);
void draw_line(const Point&, const Point&, Color, int thickness = 1, bool dotted = false);
void draw_scaled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&, const Rect& src_rect);
void blit(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity = 1.0f);
void blit_dimmed(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
void draw_tiled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&);
void blit_offset(const Point&, const Gfx::Bitmap&, const Rect& src_rect, const Point&);
void blit_scaled(const Rect&, const Gfx::Bitmap&, const Rect&, float, float);
void draw_text(const Rect&, const StringView&, const Font&, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);
void draw_text(const Rect&, const StringView&, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);
void draw_glyph(const Point&, char, Color);
void draw_glyph(const Point&, char, const Font&, Color);
void draw_emoji(const Point&, const Gfx::Bitmap&, const Font&);
void draw_glyph_or_emoji(const Point&, u32 codepoint, const Font&, Color);
const Font& font() const { return *state().font; }
void set_font(const Font& font) { state().font = &font; }
enum class DrawOp {
Copy,
Xor
};
void set_draw_op(DrawOp op) { state().draw_op = op; }
DrawOp draw_op() const { return state().draw_op; }
void add_clip_rect(const Rect& rect);
void clear_clip_rect();
Rect clip_rect() const { return state().clip_rect; }
void translate(int dx, int dy) { state().translation.move_by(dx, dy); }
void translate(const Point& delta) { state().translation.move_by(delta); }
Point translation() const { return state().translation; }
Gfx::Bitmap* target() { return m_target.ptr(); }
void save() { m_state_stack.append(m_state_stack.last()); }
void restore()
{
ASSERT(m_state_stack.size() > 1);
m_state_stack.take_last();
}
protected:
void set_pixel_with_draw_op(u32& pixel, const Color&);
void fill_rect_with_draw_op(const Rect&, Color);
void blit_with_alpha(const Point&, const Gfx::Bitmap&, const Rect& src_rect);
void blit_with_opacity(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity);
void draw_pixel(const Point&, Color, int thickness = 1);
void draw_text_line(const Rect&, const Utf8View&, const Font&, TextAlignment, Color, TextElision);
struct State {
const Font* font;
Point translation;
Rect clip_rect;
DrawOp draw_op;
};
State& state() { return m_state_stack.last(); }
const State& state() const { return m_state_stack.last(); }
Rect m_clip_origin;
NonnullRefPtr<Gfx::Bitmap> m_target;
Vector<State, 4> m_state_stack;
};
class PainterStateSaver {
public:
explicit PainterStateSaver(Painter&);
~PainterStateSaver();
private:
Painter& m_painter;
};
}
|
