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serenity/Userland/Applications/FontEditor/FontEditor.cpp

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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2022, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "FontEditor.h"
#include "GlyphEditorWidget.h"
#include "NewFontDialog.h"
#include <AK/Array.h>
#include <AK/StringBuilder.h>
#include <AK/StringUtils.h>
#include <Applications/FontEditor/FontEditorWindowGML.h>
#include <LibConfig/Client.h>
#include <LibDesktop/Launcher.h>
#include <LibGUI/Action.h>
#include <LibGUI/Application.h>
#include <LibGUI/BoxLayout.h>
#include <LibGUI/Button.h>
#include <LibGUI/CheckBox.h>
#include <LibGUI/Clipboard.h>
#include <LibGUI/ComboBox.h>
#include <LibGUI/FilePicker.h>
#include <LibGUI/GroupBox.h>
#include <LibGUI/InputBox.h>
#include <LibGUI/ItemListModel.h>
#include <LibGUI/Label.h>
#include <LibGUI/ListView.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Menubar.h>
#include <LibGUI/MessageBox.h>
#include <LibGUI/Painter.h>
#include <LibGUI/SpinBox.h>
#include <LibGUI/Statusbar.h>
#include <LibGUI/TextBox.h>
#include <LibGUI/ToolbarContainer.h>
#include <LibGUI/Window.h>
#include <LibGfx/Font/BitmapFont.h>
#include <LibGfx/Font/Emoji.h>
#include <LibGfx/Font/FontStyleMapping.h>
#include <LibGfx/Palette.h>
#include <LibGfx/TextDirection.h>
#include <LibUnicode/CharacterTypes.h>
static constexpr Array pangrams = {
"quick fox jumps nightly above wizard",
"five quacking zephyrs jolt my wax bed",
"pack my box with five dozen liquor jugs",
"quick brown fox jumps over the lazy dog",
"waxy and quivering jocks fumble the pizza",
"~#:[@_1%]*{$2.3}/4^(5'6\")-&|7+8!=<9,0\\>?;",
"byxfjärmat föl gick på duvshowen",
"         ",
"float Fox.quick(h){ is_brown && it_jumps_over(doges.lazy) }",
"<fox color=\"brown\" speed=\"quick\" jumps=\"over\">lazy dog</fox>"
};
static RefPtr<GUI::Window> create_font_preview_window(FontEditorWidget& editor)
{
auto window = GUI::Window::construct(&editor);
window->set_window_type(GUI::WindowType::ToolWindow);
window->set_title("Preview");
window->resize(400, 150);
window->set_minimum_size(200, 100);
window->center_within(*editor.window());
auto& main_widget = window->set_main_widget<GUI::Widget>();
main_widget.set_fill_with_background_color(true);
main_widget.set_layout<GUI::VerticalBoxLayout>();
main_widget.layout()->set_margins(2);
main_widget.layout()->set_spacing(4);
auto& preview_box = main_widget.add<GUI::GroupBox>();
preview_box.set_layout<GUI::VerticalBoxLayout>();
preview_box.layout()->set_margins(8);
auto& preview_label = preview_box.add<GUI::Label>();
preview_label.set_font(editor.edited_font());
editor.on_initialize = [&] {
preview_label.set_font(editor.edited_font());
};
auto& textbox_button_container = main_widget.add<GUI::Widget>();
textbox_button_container.set_layout<GUI::HorizontalBoxLayout>();
textbox_button_container.set_fixed_height(22);
auto& preview_textbox = textbox_button_container.add<GUI::TextBox>();
preview_textbox.set_text(pangrams[0]);
preview_textbox.set_placeholder("Preview text");
preview_textbox.on_change = [&] {
auto preview = String::formatted("{}\n{}",
preview_textbox.text(),
Unicode::to_unicode_uppercase_full(preview_textbox.text()));
preview_label.set_text(preview);
};
auto& reload_button = textbox_button_container.add<GUI::Button>();
reload_button.set_icon(Gfx::Bitmap::try_load_from_file("/res/icons/16x16/reload.png").release_value_but_fixme_should_propagate_errors());
reload_button.set_fixed_width(22);
reload_button.on_click = [&](auto) {
static size_t i = 1;
if (i >= pangrams.size())
i = 0;
preview_textbox.set_text(pangrams[i]);
i++;
};
return window;
}
FontEditorWidget::FontEditorWidget()
{
load_from_gml(font_editor_window_gml);
auto& toolbar = *find_descendant_of_type_named<GUI::Toolbar>("toolbar");
auto& glyph_mode_toolbar = *find_descendant_of_type_named<GUI::Toolbar>("glyph_mode_toolbar");
auto& glyph_transform_toolbar = *find_descendant_of_type_named<GUI::Toolbar>("glyph_transform_toolbar");
auto& glyph_map_container = *find_descendant_of_type_named<GUI::Widget>("glyph_map_container");
m_statusbar = *find_descendant_of_type_named<GUI::Statusbar>("statusbar");
m_glyph_editor_container = *find_descendant_of_type_named<GUI::Widget>("glyph_editor_container");
m_left_column_container = *find_descendant_of_type_named<GUI::Widget>("left_column_container");
m_glyph_editor_width_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("glyph_editor_width_spinbox");
m_glyph_editor_present_checkbox = *find_descendant_of_type_named<GUI::CheckBox>("glyph_editor_present_checkbox");
m_name_textbox = *find_descendant_of_type_named<GUI::TextBox>("name_textbox");
m_family_textbox = *find_descendant_of_type_named<GUI::TextBox>("family_textbox");
m_presentation_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("presentation_spinbox");
m_weight_combobox = *find_descendant_of_type_named<GUI::ComboBox>("weight_combobox");
m_slope_combobox = *find_descendant_of_type_named<GUI::ComboBox>("slope_combobox");
m_spacing_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("spacing_spinbox");
m_mean_line_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("mean_line_spinbox");
m_baseline_spinbox = *find_descendant_of_type_named<GUI::SpinBox>("baseline_spinbox");
m_fixed_width_checkbox = *find_descendant_of_type_named<GUI::CheckBox>("fixed_width_checkbox");
m_font_metadata_groupbox = *find_descendant_of_type_named<GUI::GroupBox>("font_metadata_groupbox");
m_unicode_block_listview = *find_descendant_of_type_named<GUI::ListView>("unicode_block_listview");
m_search_textbox = *find_descendant_of_type_named<GUI::TextBox>("search_textbox");
m_unicode_block_container = *find_descendant_of_type_named<GUI::Widget>("unicode_block_container");
m_glyph_editor_widget = m_glyph_editor_container->add<GlyphEditorWidget>();
m_glyph_map_widget = glyph_map_container.add<GUI::GlyphMapWidget>();
m_new_action = GUI::Action::create("&New Font...", { Mod_Ctrl, Key_N }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/filetype-font.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
if (!request_close())
return;
auto new_font_wizard = NewFontDialog::construct(window());
if (new_font_wizard->exec() == GUI::Dialog::ExecOK) {
auto metadata = new_font_wizard->new_font_metadata();
auto new_font = Gfx::BitmapFont::create(metadata.glyph_height, metadata.glyph_width, metadata.is_fixed_width, 0x110000);
new_font->set_name(metadata.name);
new_font->set_family(metadata.family);
new_font->set_presentation_size(metadata.presentation_size);
new_font->set_weight(metadata.weight);
new_font->set_slope(metadata.slope);
new_font->set_baseline(metadata.baseline);
new_font->set_mean_line(metadata.mean_line);
window()->set_modified(true);
initialize({}, move(new_font));
}
});
m_new_action->set_status_tip("Create a new font");
m_open_action = GUI::CommonActions::make_open_action([&](auto&) {
if (!request_close())
return;
Optional<String> open_path = GUI::FilePicker::get_open_filepath(window(), {}, "/res/fonts/");
if (!open_path.has_value())
return;
open_file(open_path.value());
});
m_save_action = GUI::CommonActions::make_save_action([&](auto&) {
if (m_path.is_empty())
m_save_as_action->activate();
else
save_file(m_path);
});
m_save_as_action = GUI::CommonActions::make_save_as_action([&](auto&) {
LexicalPath lexical_path(m_path.is_empty() ? "Untitled.font" : m_path);
Optional<String> save_path = GUI::FilePicker::get_save_filepath(window(), lexical_path.title(), lexical_path.extension());
if (!save_path.has_value())
return;
save_file(save_path.value());
});
m_cut_action = GUI::CommonActions::make_cut_action([&](auto&) {
cut_selected_glyphs();
});
m_copy_action = GUI::CommonActions::make_copy_action([&](auto&) {
copy_selected_glyphs();
});
m_paste_action = GUI::CommonActions::make_paste_action([&](auto&) {
paste_glyphs();
});
m_paste_action->set_enabled(GUI::Clipboard::the().fetch_mime_type() == "glyph/x-fonteditor");
m_delete_action = GUI::CommonActions::make_delete_action([this](auto&) {
delete_selected_glyphs();
});
m_undo_action = GUI::CommonActions::make_undo_action([&](auto&) {
undo();
});
m_redo_action = GUI::CommonActions::make_redo_action([&](auto&) {
redo();
});
m_select_all_action = GUI::CommonActions::make_select_all_action([this](auto&) {
m_glyph_map_widget->set_selection(m_range.first, m_range.last - m_range.first + 1);
m_glyph_map_widget->update();
auto selection = m_glyph_map_widget->selection().normalized();
m_undo_selection->set_start(selection.start());
m_undo_selection->set_size(selection.size());
});
m_open_preview_action = GUI::Action::create("&Preview Font", { Mod_Ctrl, Key_P }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/find.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
if (!m_font_preview_window)
m_font_preview_window = create_font_preview_window(*this);
m_font_preview_window->show();
m_font_preview_window->move_to_front();
});
m_open_preview_action->set_checked(false);
m_open_preview_action->set_status_tip("Preview the current font");
bool show_metadata = Config::read_bool("FontEditor", "Layout", "ShowMetadata", true);
set_show_font_metadata(show_metadata);
m_show_metadata_action = GUI::Action::create_checkable("Font &Metadata", { Mod_Ctrl, Key_M }, [&](auto& action) {
set_show_font_metadata(action.is_checked());
Config::write_bool("FontEditor", "Layout", "ShowMetadata", action.is_checked());
});
m_show_metadata_action->set_checked(show_metadata);
m_show_metadata_action->set_status_tip("Show or hide metadata about the current font");
bool show_unicode_blocks = Config::read_bool("FontEditor", "Layout", "ShowUnicodeBlocks", true);
set_show_unicode_blocks(show_unicode_blocks);
m_show_unicode_blocks_action = GUI::Action::create_checkable("&Unicode Blocks", { Mod_Ctrl, Key_U }, [&](auto& action) {
set_show_unicode_blocks(action.is_checked());
Config::write_bool("FontEditor", "Layout", "ShowUnicodeBlocks", action.is_checked());
});
m_show_unicode_blocks_action->set_checked(show_unicode_blocks);
m_show_unicode_blocks_action->set_status_tip("Show or hide the Unicode block list");
m_go_to_glyph_action = GUI::Action::create("&Go to Glyph...", { Mod_Ctrl, Key_G }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/go-to.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
String input;
if (GUI::InputBox::show(window(), input, "Hexadecimal:", "Go to glyph") == GUI::InputBox::ExecOK && !input.is_empty()) {
auto maybe_code_point = AK::StringUtils::convert_to_uint_from_hex(input);
if (!maybe_code_point.has_value())
return;
auto code_point = maybe_code_point.value();
code_point = clamp(code_point, m_range.first, m_range.last);
m_glyph_map_widget->set_focus(true);
m_glyph_map_widget->set_active_glyph(code_point);
m_glyph_map_widget->scroll_to_glyph(code_point);
}
});
m_go_to_glyph_action->set_status_tip("Go to the specified code point");
m_previous_glyph_action = GUI::Action::create("Pre&vious Glyph", { Mod_Alt, Key_Left }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/go-back.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_map_widget->select_previous_existing_glyph();
});
m_previous_glyph_action->set_status_tip("Seek the previous visible glyph");
m_next_glyph_action = GUI::Action::create("&Next Glyph", { Mod_Alt, Key_Right }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/go-forward.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_map_widget->select_next_existing_glyph();
});
m_next_glyph_action->set_status_tip("Seek the next visible glyph");
toolbar.add_action(*m_new_action);
toolbar.add_action(*m_open_action);
toolbar.add_action(*m_save_action);
toolbar.add_separator();
toolbar.add_action(*m_cut_action);
toolbar.add_action(*m_copy_action);
toolbar.add_action(*m_paste_action);
toolbar.add_action(*m_delete_action);
toolbar.add_separator();
toolbar.add_action(*m_undo_action);
toolbar.add_action(*m_redo_action);
toolbar.add_separator();
toolbar.add_action(*m_open_preview_action);
toolbar.add_separator();
toolbar.add_action(*m_previous_glyph_action);
toolbar.add_action(*m_next_glyph_action);
toolbar.add_action(*m_go_to_glyph_action);
i32 scale = Config::read_i32("FontEditor", "GlyphEditor", "Scale", 10);
m_scale_five_action = GUI::Action::create_checkable("500%", { Mod_Ctrl, Key_1 }, [this](auto&) {
set_scale_and_save(5);
});
m_scale_five_action->set_checked(scale == 5);
m_scale_five_action->set_status_tip("Scale the editor in proportion to the current font");
m_scale_ten_action = GUI::Action::create_checkable("1000%", { Mod_Ctrl, Key_2 }, [this](auto&) {
set_scale_and_save(10);
});
m_scale_ten_action->set_checked(scale == 10);
m_scale_ten_action->set_status_tip("Scale the editor in proportion to the current font");
m_scale_fifteen_action = GUI::Action::create_checkable("1500%", { Mod_Ctrl, Key_3 }, [this](auto&) {
set_scale_and_save(15);
});
m_scale_fifteen_action->set_checked(scale == 15);
m_scale_fifteen_action->set_status_tip("Scale the editor in proportion to the current font");
m_glyph_editor_scale_actions.add_action(*m_scale_five_action);
m_glyph_editor_scale_actions.add_action(*m_scale_ten_action);
m_glyph_editor_scale_actions.add_action(*m_scale_fifteen_action);
m_glyph_editor_scale_actions.set_exclusive(true);
m_paint_glyph_action = GUI::Action::create_checkable("Paint Glyph", { Mod_Ctrl, KeyCode::Key_J }, Gfx::Bitmap::try_load_from_file("/res/icons/pixelpaint/pen.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_editor_widget->set_mode(GlyphEditorWidget::Paint);
});
m_paint_glyph_action->set_checked(true);
m_move_glyph_action = GUI::Action::create_checkable("Move Glyph", { Mod_Ctrl, KeyCode::Key_K }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/selection-move.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_editor_widget->set_mode(GlyphEditorWidget::Move);
});
m_glyph_tool_actions.add_action(*m_move_glyph_action);
m_glyph_tool_actions.add_action(*m_paint_glyph_action);
m_glyph_tool_actions.set_exclusive(true);
glyph_mode_toolbar.add_action(*m_paint_glyph_action);
glyph_mode_toolbar.add_action(*m_move_glyph_action);
m_rotate_counterclockwise_action = GUI::CommonActions::make_rotate_counterclockwise_action([&](auto&) {
m_glyph_editor_widget->rotate_90(GlyphEditorWidget::Counterclockwise);
});
m_rotate_clockwise_action = GUI::CommonActions::make_rotate_clockwise_action([&](auto&) {
m_glyph_editor_widget->rotate_90(GlyphEditorWidget::Clockwise);
});
m_flip_horizontal_action = GUI::Action::create("Flip Horizontally", { Mod_Ctrl | Mod_Shift, Key_Q }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/edit-flip-horizontal.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_editor_widget->flip_horizontally();
});
m_flip_vertical_action = GUI::Action::create("Flip Vertically", { Mod_Ctrl | Mod_Shift, Key_W }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/edit-flip-vertical.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
m_glyph_editor_widget->flip_vertically();
});
m_copy_text_action = GUI::Action::create("Copy as Te&xt", { Mod_Ctrl, Key_T }, Gfx::Bitmap::try_load_from_file("/res/icons/16x16/edit-copy.png").release_value_but_fixme_should_propagate_errors(), [&](auto&) {
StringBuilder builder;
auto selection = m_glyph_map_widget->selection().normalized();
for (auto code_point = selection.start(); code_point < selection.start() + selection.size(); ++code_point) {
if (!m_glyph_map_widget->font().contains_glyph(code_point))
continue;
builder.append_code_point(code_point);
}
GUI::Clipboard::the().set_plain_text(builder.to_string());
});
m_copy_text_action->set_status_tip("Copy to clipboard as text");
glyph_transform_toolbar.add_action(*m_flip_horizontal_action);
glyph_transform_toolbar.add_action(*m_flip_vertical_action);
glyph_transform_toolbar.add_action(*m_rotate_counterclockwise_action);
glyph_transform_toolbar.add_action(*m_rotate_clockwise_action);
GUI::Clipboard::the().on_change = [&](String const& data_type) {
m_paste_action->set_enabled(data_type == "glyph/x-fonteditor");
};
m_glyph_editor_widget->on_glyph_altered = [this](int glyph) {
m_glyph_map_widget->update_glyph(glyph);
update_preview();
did_modify_font();
};
m_glyph_editor_widget->on_undo_event = [this] {
reset_selection_and_push_undo();
};
m_glyph_map_widget->on_active_glyph_changed = [this](int glyph) {
if (m_undo_selection) {
auto selection = m_glyph_map_widget->selection().normalized();
m_undo_selection->set_start(selection.start());
m_undo_selection->set_size(selection.size());
m_undo_selection->set_active_glyph(glyph);
}
m_glyph_editor_widget->set_glyph(glyph);
auto glyph_width = m_edited_font->raw_glyph_width(glyph);
if (m_edited_font->is_fixed_width())
m_glyph_editor_present_checkbox->set_checked(glyph_width > 0, GUI::AllowCallback::No);
else
m_glyph_editor_width_spinbox->set_value(glyph_width, GUI::AllowCallback::No);
update_statusbar();
};
m_glyph_map_widget->on_context_menu_request = [this](auto& event) {
if (!m_context_menu) {
m_context_menu = GUI::Menu::construct();
m_context_menu->add_action(*m_cut_action);
m_context_menu->add_action(*m_copy_action);
m_context_menu->add_action(*m_paste_action);
m_context_menu->add_action(*m_delete_action);
m_context_menu->add_separator();
m_context_menu->add_action(*m_select_all_action);
m_context_menu->add_separator();
m_context_menu->add_action(*m_copy_text_action);
}
m_context_menu->popup(event.screen_position());
};
m_name_textbox->on_change = [&] {
m_edited_font->set_name(m_name_textbox->text());
did_modify_font();
};
m_family_textbox->on_change = [&] {
m_edited_font->set_family(m_family_textbox->text());
did_modify_font();
};
m_fixed_width_checkbox->on_checked = [this](bool checked) {
m_edited_font->set_fixed_width(checked);
auto glyph_width = m_edited_font->raw_glyph_width(m_glyph_map_widget->active_glyph());
m_glyph_editor_width_spinbox->set_visible(!checked);
m_glyph_editor_width_spinbox->set_value(glyph_width, GUI::AllowCallback::No);
m_glyph_editor_present_checkbox->set_visible(checked);
m_glyph_editor_present_checkbox->set_checked(glyph_width > 0, GUI::AllowCallback::No);
m_glyph_editor_widget->update();
update_preview();
did_modify_font();
};
m_glyph_editor_width_spinbox->on_change = [this](int value) {
reset_selection_and_push_undo();
m_edited_font->set_glyph_width(m_glyph_map_widget->active_glyph(), value);
m_glyph_editor_widget->update();
m_glyph_map_widget->update_glyph(m_glyph_map_widget->active_glyph());
update_preview();
update_statusbar();
did_modify_font();
};
m_glyph_editor_present_checkbox->on_checked = [this](bool checked) {
reset_selection_and_push_undo();
m_edited_font->set_glyph_width(m_glyph_map_widget->active_glyph(), checked ? m_edited_font->glyph_fixed_width() : 0);
m_glyph_editor_widget->update();
m_glyph_map_widget->update_glyph(m_glyph_map_widget->active_glyph());
update_preview();
update_statusbar();
did_modify_font();
};
m_weight_combobox->on_change = [this](auto&, auto&) {
m_edited_font->set_weight(Gfx::name_to_weight(m_weight_combobox->text()));
did_modify_font();
};
for (auto& it : Gfx::font_weight_names)
m_font_weight_list.append(it.name);
m_weight_combobox->set_model(*GUI::ItemListModel<String>::create(m_font_weight_list));
m_slope_combobox->on_change = [this](auto&, auto&) {
m_edited_font->set_slope(Gfx::name_to_slope(m_slope_combobox->text()));
did_modify_font();
};
for (auto& it : Gfx::font_slope_names)
m_font_slope_list.append(it.name);
m_slope_combobox->set_model(*GUI::ItemListModel<String>::create(m_font_slope_list));
m_presentation_spinbox->on_change = [this](int value) {
m_edited_font->set_presentation_size(value);
update_preview();
did_modify_font();
};
m_spacing_spinbox->on_change = [this](int value) {
m_edited_font->set_glyph_spacing(value);
update_preview();
did_modify_font();
};
m_baseline_spinbox->on_change = [this](int value) {
m_edited_font->set_baseline(value);
m_glyph_editor_widget->update();
update_preview();
did_modify_font();
};
m_mean_line_spinbox->on_change = [this](int value) {
m_edited_font->set_mean_line(value);
m_glyph_editor_widget->update();
update_preview();
did_modify_font();
};
auto unicode_blocks = Unicode::block_display_names();
m_unicode_block_list.append("Show All");
for (auto& block : unicode_blocks)
m_unicode_block_list.append(block.display_name);
m_unicode_block_model = GUI::ItemListModel<String>::create(m_unicode_block_list);
m_filter_model = MUST(GUI::FilteringProxyModel::create(*m_unicode_block_model));
m_filter_model->set_filter_term("");
m_unicode_block_listview->on_selection_change = [this, unicode_blocks] {
auto index = m_unicode_block_listview->selection().first();
auto mapped_index = m_filter_model->map(index);
if (mapped_index.row() > 0)
m_range = unicode_blocks[mapped_index.row() - 1].code_point_range;
else
m_range = { 0x0000, 0x10FFFF };
m_glyph_map_widget->set_active_range(m_range);
};
m_unicode_block_listview->set_model(*m_filter_model);
m_unicode_block_listview->set_activates_on_selection(true);
m_unicode_block_listview->horizontal_scrollbar().set_visible(false);
m_unicode_block_listview->set_cursor(m_unicode_block_model->index(0, 0), GUI::AbstractView::SelectionUpdate::Set);
m_search_textbox->on_return_pressed = [this] {
if (!m_unicode_block_listview->selection().is_empty())
m_unicode_block_listview->activate_selected();
};
m_search_textbox->on_down_pressed = [this] {
m_unicode_block_listview->move_cursor(GUI::AbstractView::CursorMovement::Down, GUI::AbstractView::SelectionUpdate::Set);
};
m_search_textbox->on_up_pressed = [this] {
m_unicode_block_listview->move_cursor(GUI::AbstractView::CursorMovement::Up, GUI::AbstractView::SelectionUpdate::Set);
};
m_search_textbox->on_change = [this] {
m_filter_model->set_filter_term(m_search_textbox->text());
if (m_filter_model->row_count() != 0)
m_unicode_block_listview->set_cursor(m_filter_model->index(0, 0), GUI::AbstractView::SelectionUpdate::Set);
};
GUI::Application::the()->on_action_enter = [this](GUI::Action& action) {
auto text = action.status_tip();
if (text.is_empty())
text = Gfx::parse_ampersand_string(action.text());
m_statusbar->set_override_text(move(text));
};
GUI::Application::the()->on_action_leave = [this](GUI::Action&) {
m_statusbar->set_override_text({});
};
set_scale(scale);
}
void FontEditorWidget::initialize(String const& path, RefPtr<Gfx::BitmapFont>&& edited_font)
{
if (m_edited_font == edited_font)
return;
m_path = path;
m_edited_font = edited_font;
m_glyph_map_widget->set_font(*m_edited_font);
m_glyph_editor_widget->initialize(*m_edited_font);
did_resize_glyph_editor();
m_glyph_editor_width_spinbox->set_visible(!m_edited_font->is_fixed_width());
m_glyph_editor_width_spinbox->set_max(m_edited_font->max_glyph_width(), GUI::AllowCallback::No);
m_glyph_editor_width_spinbox->set_value(m_edited_font->raw_glyph_width(m_glyph_map_widget->active_glyph()), GUI::AllowCallback::No);
m_glyph_editor_present_checkbox->set_visible(m_edited_font->is_fixed_width());
m_glyph_editor_present_checkbox->set_checked(m_edited_font->contains_raw_glyph(m_glyph_map_widget->active_glyph()), GUI::AllowCallback::No);
m_fixed_width_checkbox->set_checked(m_edited_font->is_fixed_width(), GUI::AllowCallback::No);
m_name_textbox->set_text(m_edited_font->name(), GUI::AllowCallback::No);
m_family_textbox->set_text(m_edited_font->family(), GUI::AllowCallback::No);
m_presentation_spinbox->set_value(m_edited_font->presentation_size(), GUI::AllowCallback::No);
m_spacing_spinbox->set_value(m_edited_font->glyph_spacing(), GUI::AllowCallback::No);
m_mean_line_spinbox->set_range(0, max(m_edited_font->glyph_height() - 2, 0), GUI::AllowCallback::No);
m_baseline_spinbox->set_range(0, max(m_edited_font->glyph_height() - 2, 0), GUI::AllowCallback::No);
m_mean_line_spinbox->set_value(m_edited_font->mean_line(), GUI::AllowCallback::No);
m_baseline_spinbox->set_value(m_edited_font->baseline(), GUI::AllowCallback::No);
int i = 0;
for (auto& it : Gfx::font_weight_names) {
if (it.style == m_edited_font->weight()) {
m_weight_combobox->set_selected_index(i, GUI::AllowCallback::No);
break;
}
i++;
}
i = 0;
for (auto& it : Gfx::font_slope_names) {
if (it.style == m_edited_font->slope()) {
m_slope_combobox->set_selected_index(i, GUI::AllowCallback::No);
break;
}
i++;
}
deferred_invoke([this] {
auto glyph = m_glyph_map_widget->active_glyph();
m_glyph_map_widget->set_focus(true);
m_glyph_map_widget->scroll_to_glyph(glyph);
m_glyph_editor_widget->set_glyph(glyph);
update_title();
});
m_undo_stack = make<GUI::UndoStack>();
m_undo_selection = adopt_ref(*new UndoSelection(m_glyph_map_widget->selection().start(), m_glyph_map_widget->selection().size(), m_glyph_map_widget->active_glyph(), *m_edited_font));
m_undo_stack->on_state_change = [this] {
m_undo_action->set_enabled(m_undo_stack->can_undo());
m_redo_action->set_enabled(m_undo_stack->can_redo());
did_modify_font();
};
m_undo_action->set_enabled(false);
m_redo_action->set_enabled(false);
update_statusbar();
if (on_initialize)
on_initialize();
}
void FontEditorWidget::initialize_menubar(GUI::Window& window)
{
auto& file_menu = window.add_menu("&File");
file_menu.add_action(*m_new_action);
file_menu.add_action(*m_open_action);
file_menu.add_action(*m_save_action);
file_menu.add_action(*m_save_as_action);
file_menu.add_separator();
file_menu.add_action(GUI::CommonActions::make_quit_action([this](auto&) {
if (!request_close())
return;
GUI::Application::the()->quit();
}));
auto& edit_menu = window.add_menu("&Edit");
edit_menu.add_action(*m_undo_action);
edit_menu.add_action(*m_redo_action);
edit_menu.add_separator();
edit_menu.add_action(*m_cut_action);
edit_menu.add_action(*m_copy_action);
edit_menu.add_action(*m_paste_action);
edit_menu.add_action(*m_delete_action);
edit_menu.add_separator();
edit_menu.add_action(*m_select_all_action);
edit_menu.add_separator();
edit_menu.add_action(*m_copy_text_action);
auto& go_menu = window.add_menu("&Go");
go_menu.add_action(*m_previous_glyph_action);
go_menu.add_action(*m_next_glyph_action);
go_menu.add_action(*m_go_to_glyph_action);
auto& view_menu = window.add_menu("&View");
view_menu.add_action(*m_open_preview_action);
view_menu.add_separator();
view_menu.add_action(*m_show_metadata_action);
view_menu.add_action(*m_show_unicode_blocks_action);
view_menu.add_separator();
auto& scale_menu = view_menu.add_submenu("&Scale");
scale_menu.add_action(*m_scale_five_action);
scale_menu.add_action(*m_scale_ten_action);
scale_menu.add_action(*m_scale_fifteen_action);
auto& help_menu = window.add_menu("&Help");
help_menu.add_action(GUI::CommonActions::make_help_action([](auto&) {
Desktop::Launcher::open(URL::create_with_file_protocol("/usr/share/man/man1/FontEditor.md"), "/bin/Help");
}));
help_menu.add_action(GUI::CommonActions::make_about_action("Font Editor", GUI::Icon::default_icon("app-font-editor"), &window));
}
bool FontEditorWidget::save_file(String const& path)
{
auto saved_font = m_edited_font->masked_character_set();
auto ret_val = saved_font->write_to_file(path);
if (!ret_val) {
GUI::MessageBox::show(window(), "The font file could not be saved.", "Save failed", GUI::MessageBox::Type::Error);
return false;
}
m_path = path;
m_undo_stack->set_current_unmodified();
window()->set_modified(false);
update_title();
return true;
}
void FontEditorWidget::set_show_font_metadata(bool show)
{
if (m_font_metadata == show)
return;
m_font_metadata = show;
m_font_metadata_groupbox->set_visible(m_font_metadata);
}
void FontEditorWidget::set_show_unicode_blocks(bool show)
{
if (m_unicode_blocks == show)
return;
m_unicode_blocks = show;
m_unicode_block_container->set_visible(m_unicode_blocks);
}
bool FontEditorWidget::open_file(String const& path)
{
auto bitmap_font = Gfx::BitmapFont::load_from_file(path);
if (!bitmap_font) {
String message = String::formatted("Couldn't load font: {}\n", path);
GUI::MessageBox::show(window(), message, "Font Editor", GUI::MessageBox::Type::Error);
return false;
}
auto new_font = bitmap_font->unmasked_character_set();
window()->set_modified(false);
initialize(path, move(new_font));
return true;
}
void FontEditorWidget::reset_selection_and_push_undo()
{
auto selection = m_glyph_map_widget->selection().normalized();
if (selection.size() != 1) {
auto start = m_glyph_map_widget->active_glyph();
m_undo_selection->set_start(start);
m_undo_selection->set_size(1);
m_glyph_map_widget->set_selection(start, 1);
m_glyph_map_widget->update();
}
m_undo_stack->push(make<SelectionUndoCommand>(*m_undo_selection));
}
void FontEditorWidget::undo()
{
if (!m_undo_stack->can_undo())
return;
m_undo_stack->undo();
auto glyph = m_undo_selection->restored_active_glyph();
auto glyph_width = edited_font().raw_glyph_width(glyph);
if (glyph < m_range.first || glyph > m_range.last)
m_search_textbox->set_text("");
deferred_invoke([this, glyph] {
auto start = m_undo_selection->restored_start();
auto size = m_undo_selection->restored_size();
m_glyph_map_widget->set_selection(start, size, glyph);
m_glyph_map_widget->scroll_to_glyph(glyph);
m_glyph_map_widget->set_focus(true);
});
if (m_edited_font->is_fixed_width()) {
m_glyph_editor_present_checkbox->set_checked(glyph_width > 0, GUI::AllowCallback::No);
} else {
m_glyph_editor_width_spinbox->set_value(glyph_width, GUI::AllowCallback::No);
}
m_glyph_editor_widget->update();
m_glyph_map_widget->update();
update_preview();
update_statusbar();
}
void FontEditorWidget::redo()
{
if (!m_undo_stack->can_redo())
return;
m_undo_stack->redo();
auto glyph = m_undo_selection->restored_active_glyph();
auto glyph_width = edited_font().raw_glyph_width(glyph);
if (glyph < m_range.first || glyph > m_range.last)
m_search_textbox->set_text("");
deferred_invoke([this, glyph] {
auto start = m_undo_selection->restored_start();
auto size = m_undo_selection->restored_size();
m_glyph_map_widget->set_selection(start, size, glyph);
m_glyph_map_widget->scroll_to_glyph(glyph);
m_glyph_map_widget->set_focus(true);
});
if (m_edited_font->is_fixed_width()) {
m_glyph_editor_present_checkbox->set_checked(glyph_width > 0, GUI::AllowCallback::No);
} else {
m_glyph_editor_width_spinbox->set_value(glyph_width, GUI::AllowCallback::No);
}
m_glyph_editor_widget->update();
m_glyph_map_widget->update();
update_preview();
update_statusbar();
}
bool FontEditorWidget::request_close()
{
if (!window()->is_modified())
return true;
auto result = GUI::MessageBox::ask_about_unsaved_changes(window(), m_path, m_undo_stack->last_unmodified_timestamp());
if (result == GUI::MessageBox::ExecYes) {
m_save_action->activate();
if (!window()->is_modified())
return true;
}
if (result == GUI::MessageBox::ExecNo)
return true;
return false;
}
void FontEditorWidget::update_title()
{
StringBuilder title;
if (m_path.is_empty())
title.append("Untitled");
else
title.append(m_path);
title.append("[*] - Font Editor");
window()->set_title(title.to_string());
}
void FontEditorWidget::did_modify_font()
{
if (!window() || window()->is_modified())
return;
window()->set_modified(true);
update_title();
}
void FontEditorWidget::update_statusbar()
{
auto glyph = m_glyph_map_widget->active_glyph();
StringBuilder builder;
builder.appendff("U+{:04X} (", glyph);
if (auto abbreviation = Unicode::code_point_abbreviation(glyph); abbreviation.has_value()) {
builder.append(*abbreviation);
} else if (Gfx::get_char_bidi_class(glyph) == Gfx::BidirectionalClass::STRONG_RTL) {
// FIXME: This is a necessary hack, as RTL text will mess up the painting of the statusbar text.
// For now, replace RTL glyphs with U+FFFD, the replacement character.
builder.append_code_point(0xFFFD);
} else {
builder.append_code_point(glyph);
}
builder.append(")");
auto glyph_name = Unicode::code_point_display_name(glyph);
if (glyph_name.has_value()) {
builder.appendff(" {}", glyph_name.value());
}
if (m_edited_font->contains_raw_glyph(glyph))
builder.appendff(" [{}x{}]", m_edited_font->raw_glyph_width(glyph), m_edited_font->glyph_height());
else if (Gfx::Emoji::emoji_for_code_point(glyph))
builder.appendff(" [emoji]");
m_statusbar->set_text(builder.to_string());
}
void FontEditorWidget::update_preview()
{
if (m_font_preview_window)
m_font_preview_window->update();
}
void FontEditorWidget::drop_event(GUI::DropEvent& event)
{
event.accept();
if (event.mime_data().has_urls()) {
auto urls = event.mime_data().urls();
if (urls.is_empty())
return;
window()->move_to_front();
if (!request_close())
return;
open_file(urls.first().path());
}
}
void FontEditorWidget::did_resize_glyph_editor()
{
constexpr int button_width = 22;
constexpr int buttons_per_bar = 4;
constexpr int spacing = (buttons_per_bar - 1) * 2 + 10;
constexpr int glyph_toolbars_width = button_width * buttons_per_bar + spacing;
m_glyph_editor_container->set_fixed_size(m_glyph_editor_widget->preferred_width(), m_glyph_editor_widget->preferred_height());
m_left_column_container->set_fixed_width(max(m_glyph_editor_widget->preferred_width(), glyph_toolbars_width));
}
void FontEditorWidget::set_scale(i32 scale)
{
m_glyph_editor_widget->set_scale(scale);
}
void FontEditorWidget::set_scale_and_save(i32 scale)
{
set_scale(scale);
Config::write_i32("FontEditor", "GlyphEditor", "Scale", scale);
did_resize_glyph_editor();
}
void FontEditorWidget::copy_selected_glyphs()
{
size_t bytes_per_glyph = Gfx::GlyphBitmap::bytes_per_row() * edited_font().glyph_height();
auto selection = m_glyph_map_widget->selection().normalized();
auto* rows = m_edited_font->rows() + selection.start() * bytes_per_glyph;
auto* widths = m_edited_font->widths() + selection.start();
ByteBuffer buffer;
buffer.append(rows, bytes_per_glyph * selection.size());
buffer.append(widths, selection.size());
HashMap<String, String> metadata;
metadata.set("start", String::number(selection.start()));
metadata.set("count", String::number(selection.size()));
metadata.set("width", String::number(edited_font().max_glyph_width()));
metadata.set("height", String::number(edited_font().glyph_height()));
GUI::Clipboard::the().set_data(buffer.bytes(), "glyph/x-fonteditor", metadata);
}
void FontEditorWidget::cut_selected_glyphs()
{
copy_selected_glyphs();
delete_selected_glyphs();
}
void FontEditorWidget::paste_glyphs()
{
auto [data, mime_type, metadata] = GUI::Clipboard::the().fetch_data_and_type();
if (!mime_type.starts_with("glyph/"))
return;
auto glyph_count = metadata.get("count").value().to_uint().value_or(0);
if (!glyph_count)
return;
auto height = metadata.get("height").value().to_uint().value_or(0);
if (!height)
return;
auto selection = m_glyph_map_widget->selection().normalized();
auto range_bound_glyph_count = min(glyph_count, 1 + m_range.last - selection.start());
m_undo_selection->set_size(range_bound_glyph_count);
m_undo_stack->push(make<SelectionUndoCommand>(*m_undo_selection));
size_t bytes_per_glyph = Gfx::GlyphBitmap::bytes_per_row() * edited_font().glyph_height();
size_t bytes_per_copied_glyph = Gfx::GlyphBitmap::bytes_per_row() * height;
size_t copyable_bytes_per_glyph = min(bytes_per_glyph, bytes_per_copied_glyph);
auto* rows = m_edited_font->rows() + selection.start() * bytes_per_glyph;
auto* widths = m_edited_font->widths() + selection.start();
for (size_t i = 0; i < range_bound_glyph_count; ++i) {
auto copyable_width = edited_font().is_fixed_width()
? data[bytes_per_copied_glyph * glyph_count + i] ? edited_font().glyph_fixed_width() : 0
: min(edited_font().max_glyph_width(), data[bytes_per_copied_glyph * glyph_count + i]);
memcpy(&rows[i * bytes_per_glyph], &data[i * bytes_per_copied_glyph], copyable_bytes_per_glyph);
memset(&widths[i], copyable_width, sizeof(u8));
}
m_glyph_map_widget->set_selection(selection.start() + range_bound_glyph_count - 1, -range_bound_glyph_count + 1);
if (m_edited_font->is_fixed_width())
m_glyph_editor_present_checkbox->set_checked(m_edited_font->contains_raw_glyph(m_glyph_map_widget->active_glyph()), GUI::AllowCallback::No);
else
m_glyph_editor_width_spinbox->set_value(m_edited_font->raw_glyph_width(m_glyph_map_widget->active_glyph()), GUI::AllowCallback::No);
m_glyph_editor_widget->update();
m_glyph_map_widget->update();
update_statusbar();
}
void FontEditorWidget::delete_selected_glyphs()
{
m_undo_stack->push(make<SelectionUndoCommand>(*m_undo_selection));
auto selection = m_glyph_map_widget->selection().normalized();
size_t bytes_per_glyph = Gfx::GlyphBitmap::bytes_per_row() * m_edited_font->glyph_height();
auto* rows = m_edited_font->rows() + selection.start() * bytes_per_glyph;
auto* widths = m_edited_font->widths() + selection.start();
memset(rows, 0, bytes_per_glyph * selection.size());
memset(widths, 0, selection.size());
if (m_edited_font->is_fixed_width())
m_glyph_editor_present_checkbox->set_checked(false, GUI::AllowCallback::No);
else
m_glyph_editor_width_spinbox->set_value(0, GUI::AllowCallback::No);
m_glyph_editor_widget->update();
m_glyph_map_widget->update();
update_statusbar();
}
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