ladybird/Applications/FontEditor/GlyphEditorWidget.cpp
Andreas Kling 27f699ef0c AK: Rename the common integer typedefs to make it obvious what they are.
These types can be picked up by including <AK/Types.h>:

* u8, u16, u32, u64 (unsigned)
* i8, i16, i32, i64 (signed)
2019-07-03 21:20:13 +02:00

99 lines
2.8 KiB
C++

#include "GlyphEditorWidget.h"
#include <LibGUI/GPainter.h>
GlyphEditorWidget::GlyphEditorWidget(Font& mutable_font, GWidget* parent)
: GFrame(parent)
, m_font(mutable_font)
{
set_frame_thickness(2);
set_frame_shadow(FrameShadow::Sunken);
set_frame_shape(FrameShape::Container);
set_relative_rect({ 0, 0, preferred_width(), preferred_height() });
}
GlyphEditorWidget::~GlyphEditorWidget()
{
}
void GlyphEditorWidget::set_glyph(u8 glyph)
{
if (m_glyph == glyph)
return;
m_glyph = glyph;
update();
}
void GlyphEditorWidget::paint_event(GPaintEvent& event)
{
GFrame::paint_event(event);
GPainter painter(*this);
painter.add_clip_rect(frame_inner_rect());
painter.add_clip_rect(event.rect());
painter.fill_rect(frame_inner_rect(), Color::White);
painter.translate(frame_thickness(), frame_thickness());
painter.translate(-1, -1);
for (int y = 1; y < font().glyph_height(); ++y)
painter.draw_line({ 0, y * m_scale }, { font().max_glyph_width() * m_scale, y * m_scale }, Color::Black);
for (int x = 1; x < font().max_glyph_width(); ++x)
painter.draw_line({ x * m_scale, 0 }, { x * m_scale, font().glyph_height() * m_scale }, Color::Black);
auto bitmap = font().glyph_bitmap(m_glyph);
for (int y = 0; y < font().glyph_height(); ++y) {
for (int x = 0; x < font().max_glyph_width(); ++x) {
Rect rect { x * m_scale, y * m_scale, m_scale, m_scale };
if (x >= font().glyph_width(m_glyph)) {
painter.fill_rect(rect, Color::MidGray);
} else {
if (bitmap.bit_at(x, y))
painter.fill_rect(rect, Color::Black);
}
}
}
}
void GlyphEditorWidget::mousedown_event(GMouseEvent& event)
{
draw_at_mouse(event);
}
void GlyphEditorWidget::mousemove_event(GMouseEvent& event)
{
if (event.buttons() & (GMouseButton::Left | GMouseButton::Right))
draw_at_mouse(event);
}
void GlyphEditorWidget::draw_at_mouse(const GMouseEvent& event)
{
bool set = event.buttons() & GMouseButton::Left;
bool unset = event.buttons() & GMouseButton::Right;
if (!(set ^ unset))
return;
int x = (event.x() - 1) / m_scale;
int y = (event.y() - 1) / m_scale;
auto bitmap = font().glyph_bitmap(m_glyph);
if (x >= bitmap.width())
return;
if (y >= bitmap.height())
return;
if (bitmap.bit_at(x, y) == set)
return;
bitmap.set_bit_at(x, y, set);
if (on_glyph_altered)
on_glyph_altered(m_glyph);
update();
}
int GlyphEditorWidget::preferred_width() const
{
return frame_thickness() * 2 + font().max_glyph_width() * m_scale - 1;
}
int GlyphEditorWidget::preferred_height() const
{
return frame_thickness() * 2 + font().glyph_height() * m_scale - 1;
}