ladybird/Userland/Applications/FontEditor/UndoGlyph.h
Linus Groh 649d2faeab Everywhere: Use "the SerenityOS developers." in copyright headers
We had some inconsistencies before:

- Sometimes "The", sometimes "the"
- Sometimes trailing ".", sometimes no trailing "."

I picked the most common one (lowecase "the", trailing ".") and applied
it to all copyright headers.

By using the exact same string everywhere we can ensure nothing gets
missed during a global search (and replace), and that these
inconsistencies are not spread any further (as copyright headers are
commonly copied to new files).
2021-04-29 00:59:26 +02:00

66 lines
1.7 KiB
C++

/*
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <LibGUI/Command.h>
#include <LibGUI/UndoStack.h>
#include <LibGfx/BitmapFont.h>
class UndoGlyph : public RefCounted<UndoGlyph> {
public:
explicit UndoGlyph(const size_t code_point, const Gfx::BitmapFont& font)
: m_code_point(code_point)
, m_font(font)
{
}
RefPtr<UndoGlyph> save_state() const
{
auto state = adopt_ref(*new UndoGlyph(m_code_point, *m_font));
auto glyph = font().glyph(m_code_point).glyph_bitmap();
for (int x = 0; x < glyph.width(); x++)
for (int y = 0; y < glyph.height(); y++)
state->m_bits[x][y] = glyph.bit_at(x, y);
return state;
}
void restore_state(const UndoGlyph& state) const
{
auto bitmap = font().glyph(state.m_code_point).glyph_bitmap();
for (int x = 0; x < bitmap.width(); x++)
for (int y = 0; y < bitmap.height(); y++)
bitmap.set_bit_at(x, y, state.m_bits[x][y]);
}
void set_code_point(size_t point) { m_code_point = point; }
void set_font(Gfx::BitmapFont& font) { m_font = font; }
const Gfx::BitmapFont& font() const { return *m_font; }
private:
size_t m_code_point;
RefPtr<Gfx::BitmapFont> m_font;
u8 m_bits[32][36] = {};
};
class GlyphUndoCommand : public GUI::Command {
public:
GlyphUndoCommand(UndoGlyph& glyph)
: m_state(glyph.save_state())
, m_undo_glyph(glyph)
{
}
virtual void undo() override
{
m_undo_glyph.restore_state(*m_state);
}
virtual void redo() override
{
undo();
}
private:
RefPtr<UndoGlyph> m_state;
UndoGlyph& m_undo_glyph;
};