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LibGUI: Add a spinbox widget.

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This is essentially a combo widget containing a single-line GTextEditor
and two buttons for increment and decrement. The GTextEditor::on_change
callback is hooked to prevent non-numeric input but it's not entirely
perfect since that callback is asynchronous. This will work until we have
some more sophisticated input validation mechanism though.
This commit is contained in:
Andreas Kling 2019-04-09 16:29:00 +02:00
parent 4ba5e472be
commit 4c0f586f2b
4 changed files with 115 additions and 14 deletions
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26
Applications/FontEditor/FontEditor.cpp
View file

@ -6,6 +6,7 @@
#include <LibGUI/GLabel.h>
#include <LibGUI/GTextBox.h>
#include <LibGUI/GCheckBox.h>
#include <LibGUI/GSpinBox.h>
FontEditorWidget::FontEditorWidget(const String& path, RetainPtr<Font>&& edited_font, GWidget* parent)
: GWidget(parent)
@ -62,8 +63,9 @@ FontEditorWidget::FontEditorWidget(const String& path, RetainPtr<Font>&& edited_
info_label->set_text_alignment(TextAlignment::CenterLeft);
info_label->set_relative_rect({ 5, 110, 100, 20 });
auto* width_textbox = new GTextBox(this);
width_textbox->set_relative_rect({ 5, 135, 100, 20 });
auto* width_spinbox = new GSpinBox(this);
width_spinbox->set_range(0, 32);
width_spinbox->set_relative_rect({ 5, 135, 100, 20 });
auto* demo_label_1 = new GLabel(this);
demo_label_1->set_font(m_edited_font.copy_ref());
@ -85,27 +87,23 @@ FontEditorWidget::FontEditorWidget(const String& path, RetainPtr<Font>&& edited_
update_demo();
};
m_glyph_map_widget->on_glyph_selected = [this, info_label, width_textbox] (byte glyph) {
m_glyph_map_widget->on_glyph_selected = [this, info_label, width_spinbox] (byte glyph) {
m_glyph_editor_widget->set_glyph(glyph);
width_textbox->set_text(String::format("%u", m_edited_font->glyph_width(m_glyph_map_widget->selected_glyph())));
width_spinbox->set_value(m_edited_font->glyph_width(m_glyph_map_widget->selected_glyph()));
info_label->set_text(String::format("0x%b (%c)", glyph, glyph));
};
fixed_width_checkbox->on_change = [this, width_textbox, update_demo] (GCheckBox&, bool is_checked) {
fixed_width_checkbox->on_change = [this, width_spinbox, update_demo] (GCheckBox&, bool is_checked) {
m_edited_font->set_fixed_width(is_checked);
width_textbox->set_text(String::format("%u", m_edited_font->glyph_width(m_glyph_map_widget->selected_glyph())));
width_spinbox->set_value(m_edited_font->glyph_width(m_glyph_map_widget->selected_glyph()));
m_glyph_editor_widget->update();
update_demo();
};
width_textbox->on_change = [this, update_demo] (GTextBox& textbox) {
bool ok;
unsigned width = textbox.text().to_uint(ok);
if (ok) {
m_edited_font->set_glyph_width(m_glyph_map_widget->selected_glyph(), width);
m_glyph_editor_widget->update();
update_demo();
}
width_spinbox->on_change = [this, update_demo] (int value) {
m_edited_font->set_glyph_width(m_glyph_map_widget->selected_glyph(), value);
m_glyph_editor_widget->update();
update_demo();
};
m_glyph_map_widget->set_selected_glyph('A');