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FontEditor: Inherit GlyphMapWidget from ScrollableWidget

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This makes it easier to work in FontEditor at low resolution.
Previously glyph map resized itself and the parent window to
accomodate fonts, which isn't ideal. Users typically control
window size/position after launch; widgets have to make do.
This commit is contained in:
thankyouverycool 2021-04-06 11:58:08 -04:00 • committed by Andreas Kling
parent e8c1288e2c
commit d115b29a5b
2 changed files with 50 additions and 20 deletions
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50
Userland/Applications/FontEditor/GlyphMapWidget.cpp
View file

@ -29,26 +29,36 @@
#include <LibGfx/BitmapFont.h>
#include <LibGfx/Palette.h>
GlyphMapWidget::GlyphMapWidget(Gfx::BitmapFont& mutable_font)
: m_font(mutable_font)
GlyphMapWidget::GlyphMapWidget()
{
m_glyph_count = mutable_font.glyph_count();
set_relative_rect({ 0, 0, preferred_width(), preferred_height() });
set_focus_policy(GUI::FocusPolicy::StrongFocus);
horizontal_scrollbar().set_visible(false);
}
GlyphMapWidget::~GlyphMapWidget()
{
}
int GlyphMapWidget::preferred_width() const
void GlyphMapWidget::initialize(Gfx::BitmapFont& mutable_font)
{
return columns() * (font().max_glyph_width() + m_horizontal_spacing) + 2 + frame_thickness() * 2;
if (m_font == mutable_font)
return;
m_font = mutable_font;
m_glyph_count = mutable_font.glyph_count();
vertical_scrollbar().set_step(font().glyph_height() + m_vertical_spacing);
}
int GlyphMapWidget::preferred_height() const
void GlyphMapWidget::resize_event(GUI::ResizeEvent& event)
{
return rows() * (font().glyph_height() + m_vertical_spacing) + 2 + frame_thickness() * 2;
int event_width = event.size().width() - this->vertical_scrollbar().width() - (frame_thickness() * 2) - m_horizontal_spacing;
m_columns = max(event_width / (font().max_glyph_width() + m_horizontal_spacing), 1);
m_rows = ceil_div(m_glyph_count, m_columns);
int content_width = columns() * (font().max_glyph_width() + m_horizontal_spacing);
int content_height = rows() * (font().glyph_height() + m_vertical_spacing) + frame_thickness();
set_content_size({ content_width, content_height });
ScrollableWidget::resize_event(event);
}
void GlyphMapWidget::set_selected_glyph(int glyph)
@ -71,7 +81,7 @@ Gfx::IntRect GlyphMapWidget::get_outer_rect(int glyph) const
font().max_glyph_width() + m_horizontal_spacing,
font().glyph_height() + m_horizontal_spacing
}
.translated(frame_thickness(), frame_thickness());
.translated(frame_thickness() - horizontal_scrollbar().value(), frame_thickness() - vertical_scrollbar().value());
}
void GlyphMapWidget::update_glyph(int glyph)
@ -84,10 +94,11 @@ void GlyphMapWidget::paint_event(GUI::PaintEvent& event)
GUI::Frame::paint_event(event);
GUI::Painter painter(*this);
painter.add_clip_rect(widget_inner_rect());
painter.add_clip_rect(event.rect());
painter.set_font(font());
painter.fill_rect(frame_inner_rect(), palette().base());
painter.fill_rect(widget_inner_rect(), palette().base());
for (int glyph = 0; glyph < m_glyph_count; ++glyph) {
Gfx::IntRect outer_rect = get_outer_rect(glyph);
@ -125,33 +136,39 @@ void GlyphMapWidget::keydown_event(GUI::KeyEvent& event)
if (event.key() == KeyCode::Key_Up) {
if (selected_glyph() >= m_columns) {
set_selected_glyph(selected_glyph() - m_columns);
scroll_to_glyph(selected_glyph());
return;
}
}
if (event.key() == KeyCode::Key_Down) {
if (selected_glyph() < m_glyph_count - m_columns) {
set_selected_glyph(selected_glyph() + m_columns);
scroll_to_glyph(selected_glyph());
return;
}
}
if (event.key() == KeyCode::Key_Left) {
if (selected_glyph() > 0) {
set_selected_glyph(selected_glyph() - 1);
scroll_to_glyph(selected_glyph());
return;
}
}
if (event.key() == KeyCode::Key_Right) {
if (selected_glyph() < m_glyph_count - 1) {
set_selected_glyph(selected_glyph() + 1);
scroll_to_glyph(selected_glyph());
return;
}
}
if (event.ctrl() && event.key() == KeyCode::Key_Home) {
set_selected_glyph(0);
scroll_to_glyph(selected_glyph());
return;
}
if (event.ctrl() && event.key() == KeyCode::Key_End) {
set_selected_glyph(m_glyph_count - 1);
scroll_to_glyph(selected_glyph());
return;
}
if (!event.ctrl() && event.key() == KeyCode::Key_Home) {
@ -166,3 +183,16 @@ void GlyphMapWidget::keydown_event(GUI::KeyEvent& event)
return;
}
}
void GlyphMapWidget::scroll_to_glyph(int glyph)
{
int row = glyph / columns();
int column = glyph % columns();
auto scroll_rect = Gfx::IntRect {
column * (font().max_glyph_width() + m_horizontal_spacing) + 1,
row * (font().glyph_height() + m_vertical_spacing) + 1,
font().max_glyph_width() + m_horizontal_spacing,
font().glyph_height() + m_horizontal_spacing
};
scroll_into_view(scroll_rect, true, true);
}