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LibDraw: Add emoji drawing support to Painter

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From here on, all strings displayed to the user are expected to
be encoded as UTF-8. The next few commits will deal with a few
existing places where this requirement is currently violated.

https://github.com/SerenityOS/serenity/issues/490
This commit is contained in:
Sergey Bugaev 2019-09-04 23:47:03 +03:00 • committed by Andreas Kling
parent 27380b9d2b
commit 84bc6a92a7
2 changed files with 67 additions and 24 deletions
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6
Libraries/LibDraw/Painter.h
View file

@ -7,11 +7,13 @@
#include <AK/AKString.h>
#include <LibDraw/TextAlignment.h>
#include <LibDraw/TextElision.h>
#include <AK/Utf8View.h>
class CharacterBitmap;
class GlyphBitmap;
class GraphicsBitmap;
class Font;
class Emoji;
class Painter {
public:
@ -34,6 +36,8 @@ public:
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 Emoji&, 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; }
@ -70,7 +74,7 @@ protected:
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 StringView&, const Font&, TextAlignment, Color, TextElision);
void draw_text_line(const Rect&, const Utf8View&, const Font&, TextAlignment, Color, TextElision);
struct State {
const Font* font;