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https://github.com/LadybirdBrowser/ladybird.git
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c9196995be
This commit adds a SpinBox to the FontPicker dialog to allow users to set arbitrary font sizes (1 to 255 inclusive) for TTF fonts. The SpinBox is only visible when the user is selecting a TTF font.
234 lines
9.4 KiB
C++
234 lines
9.4 KiB
C++
/*
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* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <AK/QuickSort.h>
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#include <LibGUI/Button.h>
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#include <LibGUI/FontPicker.h>
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#include <LibGUI/FontPickerDialogGML.h>
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#include <LibGUI/FontPickerWeightModel.h>
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#include <LibGUI/Label.h>
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#include <LibGUI/ListView.h>
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#include <LibGUI/Scrollbar.h>
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#include <LibGUI/SpinBox.h>
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#include <LibGUI/Widget.h>
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#include <LibGfx/FontDatabase.h>
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namespace GUI {
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FontPicker::FontPicker(Window* parent_window, const Gfx::Font* current_font, bool fixed_width_only)
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: Dialog(parent_window)
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, m_fixed_width_only(fixed_width_only)
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{
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set_title("Font picker");
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resize(430, 280);
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set_icon(Gfx::Bitmap::load_from_file("/res/icons/16x16/app-font-editor.png"));
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auto& widget = set_main_widget<GUI::Widget>();
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if (!widget.load_from_gml(font_picker_dialog_gml))
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VERIFY_NOT_REACHED();
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m_family_list_view = *widget.find_descendant_of_type_named<ListView>("family_list_view");
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m_family_list_view->set_model(ItemListModel<String>::create(m_families));
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m_family_list_view->horizontal_scrollbar().set_visible(false);
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m_weight_list_view = *widget.find_descendant_of_type_named<ListView>("weight_list_view");
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m_weight_list_view->set_model(adopt(*new FontWeightListModel(m_weights)));
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m_weight_list_view->horizontal_scrollbar().set_visible(false);
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m_size_spin_box = *widget.find_descendant_of_type_named<SpinBox>("size_spin_box");
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m_size_spin_box->set_range(1, 255);
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m_size_list_view = *widget.find_descendant_of_type_named<ListView>("size_list_view");
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m_size_list_view->set_model(ItemListModel<int>::create(m_sizes));
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m_size_list_view->horizontal_scrollbar().set_visible(false);
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m_sample_text_label = *widget.find_descendant_of_type_named<Label>("sample_text_label");
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m_families.clear();
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Gfx::FontDatabase::the().for_each_typeface([&](auto& typeface) {
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if (m_fixed_width_only && !typeface.is_fixed_width())
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return;
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if (!m_families.contains_slow(typeface.family()))
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m_families.append(typeface.family());
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});
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quick_sort(m_families);
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m_family_list_view->on_selection = [this](auto& index) {
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m_family = index.data().to_string();
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m_weights.clear();
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Gfx::FontDatabase::the().for_each_typeface([&](auto& typeface) {
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if (m_fixed_width_only && !typeface.is_fixed_width())
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return;
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if (typeface.family() == m_family.value() && !m_weights.contains_slow(typeface.weight())) {
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m_weights.append(typeface.weight());
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}
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});
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quick_sort(m_weights);
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Optional<size_t> index_of_old_weight_in_new_list;
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if (m_weight.has_value())
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index_of_old_weight_in_new_list = m_weights.find_first_index(m_weight.value());
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m_weight_list_view->model()->update();
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m_weight_list_view->set_cursor(m_weight_list_view->model()->index(index_of_old_weight_in_new_list.value_or(0)), GUI::AbstractView::SelectionUpdate::Set);
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update_font();
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};
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m_weight_list_view->on_selection = [this](auto& index) {
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bool font_is_fixed_size = false;
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m_weight = index.data(ModelRole::Custom).to_i32();
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m_sizes.clear();
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dbgln("Selected weight: {}", m_weight.value());
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Gfx::FontDatabase::the().for_each_typeface([&](auto& typeface) {
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if (m_fixed_width_only && !typeface.is_fixed_width())
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return;
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if (typeface.family() == m_family.value() && (int)typeface.weight() == m_weight.value()) {
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font_is_fixed_size = typeface.is_fixed_size();
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if (font_is_fixed_size) {
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m_size_spin_box->set_visible(false);
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typeface.for_each_fixed_size_font([&](auto& font) {
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m_sizes.append(font.presentation_size());
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});
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} else {
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m_size_spin_box->set_visible(true);
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m_sizes.append(8);
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m_sizes.append(10);
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m_sizes.append(12);
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m_sizes.append(14);
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m_sizes.append(16);
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m_sizes.append(18);
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m_sizes.append(20);
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m_sizes.append(22);
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m_sizes.append(24);
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m_sizes.append(36);
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}
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}
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});
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quick_sort(m_sizes);
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m_size_list_view->model()->update();
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m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::SingleSelection);
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if (m_size.has_value()) {
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Optional<size_t> index_of_old_size_in_new_list = m_sizes.find_first_index(m_size.value());
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if (index_of_old_size_in_new_list.has_value()) {
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m_size_list_view->set_cursor(m_size_list_view->model()->index(index_of_old_size_in_new_list.value()), GUI::AbstractView::SelectionUpdate::Set);
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} else {
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if (font_is_fixed_size) {
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m_size_list_view->set_cursor(m_size_list_view->model()->index(0), GUI::AbstractView::SelectionUpdate::Set);
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} else {
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m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::NoSelection);
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m_size_spin_box->set_value(m_size.value());
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}
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}
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} else {
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m_size_list_view->set_cursor(m_size_list_view->model()->index(0), GUI::AbstractView::SelectionUpdate::Set);
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}
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update_font();
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};
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m_size_list_view->on_selection = [this](auto& index) {
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m_size = index.data().to_i32();
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m_size_spin_box->set_value(m_size.value());
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update_font();
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};
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m_size_spin_box->on_change = [this](int value) {
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m_size = value;
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Optional<size_t> index_of_new_size_in_list = m_sizes.find_first_index(m_size.value());
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if (index_of_new_size_in_list.has_value()) {
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m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::SingleSelection);
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m_size_list_view->set_cursor(m_size_list_view->model()->index(index_of_new_size_in_list.value()), GUI::AbstractView::SelectionUpdate::Set);
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} else {
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m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::NoSelection);
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}
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update_font();
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};
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auto& ok_button = *widget.find_descendant_of_type_named<GUI::Button>("ok_button");
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ok_button.on_click = [this](auto) {
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done(ExecOK);
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};
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auto& cancel_button = *widget.find_descendant_of_type_named<GUI::Button>("cancel_button");
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cancel_button.on_click = [this](auto) {
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done(ExecCancel);
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};
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set_font(current_font);
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}
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FontPicker::~FontPicker()
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{
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}
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void FontPicker::set_font(const Gfx::Font* font)
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{
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if (m_font == font)
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return;
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m_font = font;
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m_sample_text_label->set_font(m_font);
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if (!m_font) {
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m_family = {};
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m_weight = {};
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m_size = {};
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m_weights.clear();
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m_sizes.clear();
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m_weight_list_view->model()->update();
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m_size_list_view->model()->update();
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return;
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}
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m_family = font->family();
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m_weight = font->weight();
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m_size = font->presentation_size();
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auto family_index = m_families.find_first_index(m_font->family());
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if (family_index.has_value())
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m_family_list_view->set_cursor(m_family_list_view->model()->index(family_index.value()), GUI::AbstractView::SelectionUpdate::Set);
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auto weight_index = m_weights.find_first_index(m_font->weight());
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if (weight_index.has_value()) {
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m_weight_list_view->set_cursor(m_weight_list_view->model()->index(weight_index.value()), GUI::AbstractView::SelectionUpdate::Set);
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}
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auto size_index = m_sizes.find_first_index(m_font->presentation_size());
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if (size_index.has_value())
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m_size_list_view->set_cursor(m_size_list_view->model()->index(size_index.value()), GUI::AbstractView::SelectionUpdate::Set);
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}
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void FontPicker::update_font()
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{
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if (m_family.has_value() && m_size.has_value() && m_weight.has_value()) {
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m_font = Gfx::FontDatabase::the().get(m_family.value(), m_size.value(), m_weight.value());
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m_sample_text_label->set_font(m_font);
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}
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}
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}
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