mirror of
https://github.com/RGBCube/serenity
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0ad5e85163
FontEditor will need to clear references to its mutable font in the future while CharacterMap has no use for the highlights clone, so let's convert GlyphMapWidget's set_font wrapper into a separate initialize function for the editor and stop hiding the base function for others. Setting font null in either ultimately points the map to the system's default font.
606 lines
21 KiB
C++
606 lines
21 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* Copyright (c) 2021, Mustafa Quraish <mustafa@serenityos.org>
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* Copyright (c) 2022, Sam Atkins <atkinssj@serenityos.org>
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* Copyright (c) 2022, the SerenityOS developers.
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "GlyphMapWidget.h"
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#include <LibGUI/Painter.h>
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#include <LibGfx/Font/BitmapFont.h>
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#include <LibGfx/Font/Emoji.h>
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#include <LibGfx/Palette.h>
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REGISTER_WIDGET(GUI, GlyphMapWidget);
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namespace GUI {
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GlyphMapWidget::Selection GlyphMapWidget::Selection::normalized() const
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{
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if (m_size > 0)
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return *this;
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return { m_start + m_size, -m_size + 1 };
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}
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void GlyphMapWidget::Selection::resize_by(int i)
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{
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m_size += i;
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if (m_size == 0) {
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if (i < 0)
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m_size--;
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else
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m_size++;
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}
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}
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bool GlyphMapWidget::Selection::contains(int i) const
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{
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auto this_normalized = normalized();
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return i >= this_normalized.m_start && i < this_normalized.m_start + this_normalized.m_size;
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}
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void GlyphMapWidget::Selection::extend_to(int glyph)
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{
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m_size = glyph - m_start;
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if (m_size >= 0)
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m_size++;
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}
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GlyphMapWidget::GlyphMapWidget()
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: AbstractScrollableWidget()
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{
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set_focus_policy(FocusPolicy::StrongFocus);
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horizontal_scrollbar().set_visible(false);
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did_change_font();
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set_active_glyph('A');
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}
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void GlyphMapWidget::resize_event(ResizeEvent& event)
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{
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recalculate_content_size();
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AbstractScrollableWidget::resize_event(event);
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}
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void GlyphMapWidget::set_active_glyph(int glyph, ShouldResetSelection should_reset_selection)
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{
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if (m_active_glyph == glyph && should_reset_selection == ShouldResetSelection::No)
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return;
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m_active_glyph = glyph;
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if (should_reset_selection == ShouldResetSelection::Yes) {
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m_selection.set_start(glyph);
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m_selection.set_size(1);
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}
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if (on_active_glyph_changed)
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on_active_glyph_changed(glyph);
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update();
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}
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void GlyphMapWidget::set_selection(int start, int size, Optional<u32> active_glyph)
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{
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m_selection.set_start(start);
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m_selection.set_size(size);
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if (active_glyph.has_value())
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set_active_glyph(active_glyph.value(), ShouldResetSelection::No);
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}
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void GlyphMapWidget::restore_selection(int start, int size, int active_glyph)
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{
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if (start == active_glyph && size > 1) {
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start = active_glyph + size - 1;
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size = -size + 1;
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}
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m_selection.set_start(start);
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m_selection.set_size(size);
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set_active_glyph(active_glyph, ShouldResetSelection::No);
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}
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Gfx::IntRect GlyphMapWidget::get_outer_rect(int glyph) const
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{
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glyph -= m_active_range.first;
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int row = glyph / columns();
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int column = glyph % columns();
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return Gfx::IntRect {
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column * (font().max_glyph_width() + m_horizontal_spacing),
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row * (font().pixel_size_rounded_up() + m_vertical_spacing),
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font().max_glyph_width() + m_horizontal_spacing,
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font().pixel_size_rounded_up() + m_vertical_spacing
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}
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.translated(frame_thickness() - horizontal_scrollbar().value(), frame_thickness() - vertical_scrollbar().value());
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}
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void GlyphMapWidget::update_glyph(int glyph)
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{
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set_glyph_modified(glyph, true);
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update(get_outer_rect(glyph));
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}
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void GlyphMapWidget::paint_event(PaintEvent& event)
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{
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Frame::paint_event(event);
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Painter painter(*this);
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painter.add_clip_rect(widget_inner_rect());
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painter.add_clip_rect(event.rect());
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painter.set_font(font());
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painter.fill_rect(widget_inner_rect(), palette().window().darkened(0.8f));
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auto first_row = vertical_scrollbar().value() / vertical_scrollbar().step();
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auto first_glyph = first_row * columns() + m_active_range.first;
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auto last_glyph = m_active_range.last;
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for (u32 glyph = first_glyph; glyph <= first_glyph + m_visible_glyphs && glyph <= last_glyph; ++glyph) {
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Gfx::IntRect outer_rect = get_outer_rect(glyph);
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Gfx::IntRect inner_rect(
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outer_rect.x() + m_horizontal_spacing / 2,
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outer_rect.y() + m_vertical_spacing / 2,
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font().max_glyph_width(),
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font().pixel_size_rounded_up());
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if (m_selection.contains(glyph)) {
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painter.fill_rect(outer_rect, is_focused() ? palette().selection() : palette().inactive_selection());
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if (font().contains_glyph(glyph))
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painter.draw_glyph(inner_rect.location(), glyph, is_focused() ? palette().selection_text() : palette().inactive_selection_text());
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else if (auto* emoji = Gfx::Emoji::emoji_for_code_point(glyph); emoji && m_show_system_emoji)
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painter.draw_emoji(inner_rect.location(), *emoji, font());
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} else if (font().contains_glyph(glyph)) {
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if (m_highlight_modifications && m_modified_glyphs.contains(glyph)) {
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if (m_original_font && m_original_font->contains_glyph(glyph)) {
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// Modified
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if (palette().is_dark())
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painter.fill_rect(outer_rect, Gfx::Color { 0, 65, 159 });
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else
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painter.fill_rect(outer_rect, Gfx::Color { 138, 185, 252 });
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} else {
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// Newly created
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if (palette().is_dark())
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painter.fill_rect(outer_rect, Gfx::Color { 8, 127, 0 });
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else
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painter.fill_rect(outer_rect, Gfx::Color { 133, 251, 116 });
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}
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} else {
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painter.fill_rect(outer_rect, palette().base());
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}
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painter.draw_glyph(inner_rect.location(), glyph, palette().base_text());
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} else if (auto* emoji = Gfx::Emoji::emoji_for_code_point(glyph); emoji && m_show_system_emoji) {
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painter.draw_emoji(inner_rect.location(), *emoji, font());
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} else {
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if (m_highlight_modifications && m_original_font && m_original_font->contains_glyph(glyph)) {
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// Deleted
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if (palette().is_dark())
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painter.fill_rect(outer_rect, Gfx::Color { 127, 0, 0 });
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else
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painter.fill_rect(outer_rect, Gfx::Color { 255, 150, 150 });
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} else {
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painter.fill_rect(outer_rect, palette().window());
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}
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}
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}
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painter.draw_focus_rect(get_outer_rect(m_active_glyph), palette().focus_outline());
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}
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Optional<int> GlyphMapWidget::glyph_at_position(Gfx::IntPoint position) const
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{
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Gfx::IntPoint map_offset { frame_thickness() - horizontal_scrollbar().value(), frame_thickness() - vertical_scrollbar().value() };
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auto map_position = position - map_offset;
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auto col = (map_position.x() - 1) / ((font().max_glyph_width() + m_horizontal_spacing));
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auto row = (map_position.y() - 1) / ((font().pixel_size_rounded_up() + m_vertical_spacing));
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auto glyph = row * columns() + col + m_active_range.first;
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if (row >= 0 && row < rows() && col >= 0 && col < columns() && glyph < m_glyph_count + m_active_range.first)
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return glyph;
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return {};
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}
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int GlyphMapWidget::glyph_at_position_clamped(Gfx::IntPoint position) const
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{
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Gfx::IntPoint map_offset { frame_thickness() - horizontal_scrollbar().value(), frame_thickness() - vertical_scrollbar().value() };
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auto map_position = position - map_offset;
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auto col = clamp((map_position.x() - 1) / ((font().max_glyph_width() + m_horizontal_spacing)), 0, columns() - 1);
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auto row = clamp((map_position.y() - 1) / ((font().pixel_size_rounded_up() + m_vertical_spacing)), 0, rows() - 1);
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auto glyph = row * columns() + col + m_active_range.first;
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if (row == rows() - 1)
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glyph = min(glyph, m_glyph_count + m_active_range.first - 1);
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return glyph;
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}
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void GlyphMapWidget::context_menu_event(GUI::ContextMenuEvent& event)
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{
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if (on_context_menu_request)
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on_context_menu_request(event);
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}
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void GlyphMapWidget::mousedown_event(MouseEvent& event)
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{
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if (event.button() == MouseButton::Secondary)
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return;
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if (auto maybe_glyph = glyph_at_position(event.position()); maybe_glyph.has_value()) {
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auto glyph = maybe_glyph.value();
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if (event.shift())
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m_selection.extend_to(glyph);
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m_in_drag_select = true;
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set_active_glyph(glyph, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
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}
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}
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void GlyphMapWidget::mouseup_event(GUI::MouseEvent& event)
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{
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if (event.button() == MouseButton::Secondary)
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return;
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if (!m_in_drag_select)
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return;
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auto constrained = event.position().constrained(widget_inner_rect());
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if (auto maybe_glyph = glyph_at_position(constrained); maybe_glyph.has_value()) {
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auto glyph = maybe_glyph.value();
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m_selection.extend_to(glyph);
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set_active_glyph(glyph, ShouldResetSelection::No);
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}
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m_in_drag_select = false;
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}
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void GlyphMapWidget::mousemove_event(GUI::MouseEvent& event)
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{
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m_last_mousemove_position = event.position();
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if (m_in_drag_select) {
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auto constrained = event.position().constrained(widget_inner_rect());
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auto glyph = glyph_at_position_clamped(constrained);
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m_selection.extend_to(glyph);
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set_active_glyph(glyph, ShouldResetSelection::No);
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scroll_to_glyph(glyph);
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update();
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}
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}
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void GlyphMapWidget::automatic_scrolling_timer_did_fire()
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{
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if (!m_in_drag_select) {
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set_automatic_scrolling_timer_active(false);
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return;
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}
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auto glyph = glyph_at_position_clamped(m_last_mousemove_position);
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m_selection.extend_to(glyph);
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set_active_glyph(glyph, ShouldResetSelection::No);
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scroll_to_glyph(glyph);
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update();
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}
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void GlyphMapWidget::doubleclick_event(MouseEvent& event)
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{
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if (on_glyph_double_clicked) {
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if (auto maybe_glyph = glyph_at_position(event.position()); maybe_glyph.has_value())
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on_glyph_double_clicked(maybe_glyph.value());
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}
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}
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void GlyphMapWidget::keydown_event(KeyEvent& event)
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{
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if (event.key() == KeyCode::Key_Tab) {
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AbstractScrollableWidget::keydown_event(event);
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return;
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}
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if (event.key() == KeyCode::Key_Escape) {
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m_selection.set_size(1);
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m_selection.set_start(m_active_glyph);
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if (on_escape_pressed)
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on_escape_pressed();
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return;
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}
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if (!event.modifiers() && event.is_arrow_key()) {
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m_selection.set_size(1);
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m_selection.set_start(m_active_glyph);
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}
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if (event.shift() && event.is_arrow_key()) {
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auto resizing_end = m_selection.start() + m_selection.size() - (m_selection.size() > 0 ? 1 : 0);
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set_active_glyph(resizing_end, ShouldResetSelection::No);
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scroll_to_glyph(resizing_end);
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}
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int first_glyph = m_active_range.first;
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int last_glyph = m_active_range.last;
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auto selection = m_selection.normalized();
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if (event.key() == KeyCode::Key_Up) {
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if (m_active_glyph - m_columns < first_glyph)
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return;
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if (event.ctrl() && selection.start() - m_columns < first_glyph)
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return;
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if (event.shift())
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m_selection.extend_to(m_active_glyph - m_columns);
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else
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m_selection.set_start(m_selection.start() - m_columns);
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set_active_glyph(m_active_glyph - m_columns, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.key() == KeyCode::Key_Down) {
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if (m_active_glyph + m_columns > last_glyph)
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return;
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if (event.ctrl() && selection.start() + selection.size() - 1 + m_columns > last_glyph)
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return;
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if (event.shift())
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m_selection.extend_to(m_active_glyph + m_columns);
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else
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m_selection.set_start(m_selection.start() + m_columns);
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set_active_glyph(m_active_glyph + m_columns, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.key() == KeyCode::Key_Left) {
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if (event.alt())
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return event.ignore();
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if (m_active_glyph - 1 < first_glyph)
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return;
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if (event.ctrl() && selection.start() - 1 < first_glyph)
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return;
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if (event.shift())
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m_selection.resize_by(-1);
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else
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m_selection.set_start(m_selection.start() - 1);
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set_active_glyph(m_active_glyph - 1, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.key() == KeyCode::Key_Right) {
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if (event.alt())
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return event.ignore();
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if (m_active_glyph + 1 > last_glyph)
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return;
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if (event.ctrl() && selection.start() + selection.size() > last_glyph)
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return;
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if (event.shift())
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m_selection.resize_by(1);
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else
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m_selection.set_start(m_selection.start() + 1);
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set_active_glyph(m_active_glyph + 1, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.key() == KeyCode::Key_Home) {
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if (event.alt()) {
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set_active_glyph(first_glyph);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.ctrl() && event.shift()) {
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m_selection.extend_to(first_glyph);
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set_active_glyph(first_glyph, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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auto start_of_row = (m_active_glyph - first_glyph) / m_columns * m_columns;
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if (event.shift())
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m_selection.extend_to(start_of_row + first_glyph);
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set_active_glyph(start_of_row + first_glyph, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
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return;
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}
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if (event.key() == KeyCode::Key_End) {
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if (event.alt()) {
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set_active_glyph(last_glyph);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.ctrl() && event.shift()) {
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m_selection.extend_to(last_glyph);
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set_active_glyph(last_glyph, ShouldResetSelection::No);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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auto end_of_row = (m_active_glyph - first_glyph) / m_columns * m_columns + (m_columns - 1);
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end_of_row = clamp(end_of_row + first_glyph, first_glyph, last_glyph);
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if (event.shift())
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m_selection.extend_to(end_of_row);
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set_active_glyph(end_of_row, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
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return;
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}
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{
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auto first_visible_row = vertical_scrollbar().value() / vertical_scrollbar().step();
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auto last_visible_row = first_visible_row + m_visible_rows;
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auto current_row = (m_active_glyph - first_glyph) / columns();
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auto page = m_active_glyph;
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if (event.key() == KeyCode::Key_PageDown) {
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auto current_page = m_active_glyph + m_columns * (last_visible_row - current_row);
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auto next_page = m_active_glyph + m_columns * m_visible_rows;
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auto remainder = m_active_glyph + m_columns * ((last_glyph - first_glyph) / columns() - current_row);
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if (current_row < last_visible_row && current_page <= last_glyph)
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page = current_page;
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else if (next_page <= last_glyph)
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page = next_page;
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else if (remainder <= last_glyph)
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page = remainder;
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else
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page = remainder - m_columns; // Bottom rows do not always extend across all columns
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if (event.shift())
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m_selection.extend_to(page);
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set_active_glyph(page, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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if (event.key() == KeyCode::Key_PageUp) {
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auto current_page = m_active_glyph - m_columns * (current_row - first_visible_row);
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auto previous_page = m_active_glyph - m_columns * m_visible_rows;
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auto remainder = m_active_glyph - m_columns * current_row;
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if (current_row > first_visible_row && current_page >= first_glyph)
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page = current_page;
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else if (previous_page >= first_glyph)
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page = previous_page;
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else
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page = remainder;
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if (event.shift())
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m_selection.extend_to(page);
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set_active_glyph(page, event.shift() ? ShouldResetSelection::No : ShouldResetSelection::Yes);
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scroll_to_glyph(m_active_glyph);
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return;
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}
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}
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event.ignore();
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}
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void GlyphMapWidget::did_change_font()
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{
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recalculate_content_size();
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vertical_scrollbar().set_step(font().pixel_size_rounded_up() + m_vertical_spacing);
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}
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void GlyphMapWidget::scroll_to_glyph(int glyph)
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|
{
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glyph -= m_active_range.first;
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int row = glyph / columns();
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int column = glyph % columns();
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auto scroll_rect = Gfx::IntRect {
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column * (font().max_glyph_width() + m_horizontal_spacing),
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row * (font().pixel_size_rounded_up() + m_vertical_spacing),
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font().max_glyph_width() + m_horizontal_spacing,
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font().pixel_size_rounded_up() + m_vertical_spacing
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};
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scroll_into_view(scroll_rect, true, true);
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}
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|
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void GlyphMapWidget::select_previous_existing_glyph()
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|
{
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bool search_wrapped = false;
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int first_glyph = m_active_range.first;
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int last_glyph = m_active_range.last;
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for (int i = active_glyph() - 1;; --i) {
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if (i < first_glyph && !search_wrapped) {
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i = last_glyph;
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|
search_wrapped = true;
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} else if (i < first_glyph && search_wrapped) {
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|
break;
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}
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|
if (font().contains_glyph(i)) {
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|
set_focus(true);
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|
set_active_glyph(i);
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|
scroll_to_glyph(i);
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|
break;
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|
}
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|
}
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|
}
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|
|
|
void GlyphMapWidget::select_next_existing_glyph()
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|
{
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|
bool search_wrapped = false;
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|
int first_glyph = m_active_range.first;
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|
int last_glyph = m_active_range.last;
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|
for (int i = active_glyph() + 1;; ++i) {
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|
if (i > last_glyph && !search_wrapped) {
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|
i = first_glyph;
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|
search_wrapped = true;
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|
} else if (i > last_glyph && search_wrapped) {
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|
break;
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|
}
|
|
if (font().contains_glyph(i)) {
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|
set_focus(true);
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|
set_active_glyph(i);
|
|
scroll_to_glyph(i);
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|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void GlyphMapWidget::recalculate_content_size()
|
|
{
|
|
auto event_width = widget_inner_rect().width();
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|
auto event_height = widget_inner_rect().height();
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|
m_columns = max(event_width / (font().max_glyph_width() + m_horizontal_spacing), 1);
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|
m_rows = ceil_div(m_glyph_count, m_columns);
|
|
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|
constexpr auto overdraw_margins = 2;
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|
auto max_visible_rows = event_height / (font().pixel_size_rounded_up() + m_vertical_spacing);
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|
m_visible_rows = min(max_visible_rows, m_rows);
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|
m_visible_glyphs = (m_visible_rows + overdraw_margins) * m_columns;
|
|
|
|
int content_width = columns() * (font().max_glyph_width() + m_horizontal_spacing);
|
|
int content_height = rows() * (font().pixel_size_rounded_up() + m_vertical_spacing);
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|
set_content_size({ content_width, content_height });
|
|
|
|
scroll_to_glyph(m_active_glyph);
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|
}
|
|
|
|
void GlyphMapWidget::set_active_range(Unicode::CodePointRange range)
|
|
{
|
|
if (m_active_range.first == range.first && m_active_range.last == range.last)
|
|
return;
|
|
m_active_range = range;
|
|
m_glyph_count = range.last - range.first + 1;
|
|
set_active_glyph(range.first);
|
|
vertical_scrollbar().set_value(0);
|
|
recalculate_content_size();
|
|
update();
|
|
}
|
|
|
|
void GlyphMapWidget::set_highlight_modifications(bool highlight_modifications)
|
|
{
|
|
if (m_highlight_modifications == highlight_modifications)
|
|
return;
|
|
|
|
m_highlight_modifications = highlight_modifications;
|
|
update();
|
|
}
|
|
|
|
void GlyphMapWidget::set_show_system_emoji(bool show)
|
|
{
|
|
if (m_show_system_emoji == show)
|
|
return;
|
|
m_show_system_emoji = show;
|
|
update();
|
|
}
|
|
|
|
void GlyphMapWidget::set_glyph_modified(u32 glyph, bool modified)
|
|
{
|
|
if (modified)
|
|
m_modified_glyphs.set(glyph);
|
|
else
|
|
m_modified_glyphs.remove(glyph);
|
|
}
|
|
|
|
bool GlyphMapWidget::glyph_is_modified(u32 glyph)
|
|
{
|
|
return m_modified_glyphs.contains(glyph);
|
|
}
|
|
|
|
ErrorOr<void> GlyphMapWidget::initialize(Gfx::Font const* font)
|
|
{
|
|
if (font)
|
|
m_original_font = TRY(font->try_clone());
|
|
else
|
|
m_original_font = nullptr;
|
|
m_modified_glyphs.clear();
|
|
AbstractScrollableWidget::set_font(font);
|
|
return {};
|
|
}
|
|
|
|
void GlyphMapWidget::enter_event(Core::Event&)
|
|
{
|
|
set_automatic_scrolling_timer_active(false);
|
|
}
|
|
|
|
void GlyphMapWidget::leave_event(Core::Event&)
|
|
{
|
|
if (m_in_drag_select)
|
|
set_automatic_scrolling_timer_active(true);
|
|
}
|
|
|
|
Optional<UISize> GlyphMapWidget::calculated_min_size() const
|
|
{
|
|
auto scrollbar = vertical_scrollbar().effective_min_size().height().as_int();
|
|
auto min_height = max(font().pixel_size_rounded_up() + m_vertical_spacing, scrollbar);
|
|
auto min_width = font().max_glyph_width() + m_horizontal_spacing + width_occupied_by_vertical_scrollbar();
|
|
return { { min_width + frame_thickness() * 2, min_height + frame_thickness() * 2 } };
|
|
}
|
|
|
|
}
|