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LibGUI: Allow arbitrary font size in FontPicker

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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.
This commit is contained in:
James Triantafylos 2021-04-14 09:44:55 -04:00 • committed by Linus Groh
parent e4412f1f59
commit c9196995be
3 changed files with 49 additions and 7 deletions
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51
Userland/Libraries/LibGUI/FontPicker.cpp
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@ -32,6 +32,7 @@
#include <LibGUI/Label.h>
#include <LibGUI/ListView.h>
#include <LibGUI/Scrollbar.h>
#include <LibGUI/SpinBox.h>
#include <LibGUI/Widget.h>
#include <LibGfx/FontDatabase.h>
@ -57,6 +58,9 @@ FontPicker::FontPicker(Window* parent_window, const Gfx::Font* current_font, boo
m_weight_list_view->set_model(adopt(*new FontWeightListModel(m_weights)));
m_weight_list_view->horizontal_scrollbar().set_visible(false);
m_size_spin_box = *widget.find_descendant_of_type_named<SpinBox>("size_spin_box");
m_size_spin_box->set_range(1, 255);
m_size_list_view = *widget.find_descendant_of_type_named<ListView>("size_list_view");
m_size_list_view->set_model(ItemListModel<int>::create(m_sizes));
m_size_list_view->horizontal_scrollbar().set_visible(false);
@ -93,6 +97,7 @@ FontPicker::FontPicker(Window* parent_window, const Gfx::Font* current_font, boo
};
m_weight_list_view->on_selection = [this](auto& index) {
bool font_is_fixed_size = false;
m_weight = index.data(ModelRole::Custom).to_i32();
m_sizes.clear();
dbgln("Selected weight: {}", m_weight.value());
@ -100,11 +105,16 @@ FontPicker::FontPicker(Window* parent_window, const Gfx::Font* current_font, boo
if (m_fixed_width_only && !typeface.is_fixed_width())
return;
if (typeface.family() == m_family.value() && (int)typeface.weight() == m_weight.value()) {
if (typeface.is_fixed_size()) {
font_is_fixed_size = typeface.is_fixed_size();
if (font_is_fixed_size) {
m_size_spin_box->set_visible(false);
typeface.for_each_fixed_size_font([&](auto& font) {
m_sizes.append(font.presentation_size());
});
} else {
m_size_spin_box->set_visible(true);
m_sizes.append(8);
m_sizes.append(10);
m_sizes.append(12);
@ -119,18 +129,45 @@ FontPicker::FontPicker(Window* parent_window, const Gfx::Font* current_font, boo
}
});
quick_sort(m_sizes);
Optional<size_t> index_of_old_size_in_new_list;
if (m_size.has_value()) {
index_of_old_size_in_new_list = m_sizes.find_first_index(m_size.value());
}
m_size_list_view->model()->update();
m_size_list_view->set_cursor(m_size_list_view->model()->index(index_of_old_size_in_new_list.value_or(0)), GUI::AbstractView::SelectionUpdate::Set);
m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::SingleSelection);
if (m_size.has_value()) {
Optional<size_t> index_of_old_size_in_new_list = m_sizes.find_first_index(m_size.value());
if (index_of_old_size_in_new_list.has_value()) {
m_size_list_view->set_cursor(m_size_list_view->model()->index(index_of_old_size_in_new_list.value()), GUI::AbstractView::SelectionUpdate::Set);
} else {
if (font_is_fixed_size) {
m_size_list_view->set_cursor(m_size_list_view->model()->index(0), GUI::AbstractView::SelectionUpdate::Set);
} else {
m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::NoSelection);
m_size_spin_box->set_value(m_size.value());
}
}
} else {
m_size_list_view->set_cursor(m_size_list_view->model()->index(0), GUI::AbstractView::SelectionUpdate::Set);
}
update_font();
};
m_size_list_view->on_selection = [this](auto& index) {
m_size = index.data().to_i32();
m_size_spin_box->set_value(m_size.value());
update_font();
};
m_size_spin_box->on_change = [this](int value) {
m_size = value;
Optional<size_t> index_of_new_size_in_list = m_sizes.find_first_index(m_size.value());
if (index_of_new_size_in_list.has_value()) {
m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::SingleSelection);
m_size_list_view->set_cursor(m_size_list_view->model()->index(index_of_new_size_in_list.value()), GUI::AbstractView::SelectionUpdate::Set);
} else {
m_size_list_view->set_selection_mode(GUI::AbstractView::SelectionMode::NoSelection);
}
update_font();
};