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#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>
class CharacterBitmap;
class GlyphBitmap;
class GraphicsBitmap;
class Font;
class Emoji;
class Painter {
public:
explicit Painter(GraphicsBitmap&);
~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 GraphicsBitmap&, const Rect& src_rect);
void blit(const Point&, const GraphicsBitmap&, const Rect& src_rect, float opacity = 1.0f);
void blit_dimmed(const Point&, const GraphicsBitmap&, const Rect& src_rect);
void draw_tiled_bitmap(const Rect& dst_rect, const GraphicsBitmap&);
void blit_offset(const Point&, const GraphicsBitmap&, const Rect& src_rect, const Point&);
void blit_scaled(const Rect&, const GraphicsBitmap&, 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 GraphicsBitmap&, 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; }
GraphicsBitmap* 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 GraphicsBitmap&, const Rect& src_rect);
void blit_with_opacity(const Point&, const GraphicsBitmap&, 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<GraphicsBitmap> m_target;
Vector<State, 4> m_state_stack;
};
class PainterStateSaver {
public:
explicit PainterStateSaver(Painter&);
~PainterStateSaver();
private:
Painter& m_painter;
};
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