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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGUI/Button.h>
#include <LibGUI/SpinBox.h>
#include <LibGUI/TextBox.h>
namespace GUI {
SpinBox::SpinBox()
{
m_editor = add<TextBox>();
m_editor->set_text("0");
m_editor->on_change = [this] {
auto value = m_editor->text().to_uint();
if (value.has_value())
set_value(value.value());
else
m_editor->set_text(String::number(m_value));
};
m_increment_button = add<Button>();
m_increment_button->set_focusable(false);
m_increment_button->set_text("\xE2\xAC\x86"); // UPWARDS BLACK ARROW
m_increment_button->on_click = [this](auto) { set_value(m_value + 1); };
m_increment_button->set_auto_repeat_interval(150);
m_decrement_button = add<Button>();
m_decrement_button->set_focusable(false);
m_decrement_button->set_text("\xE2\xAC\x87"); // DOWNWARDS BLACK ARROW
m_decrement_button->on_click = [this](auto) { set_value(m_value - 1); };
m_decrement_button->set_auto_repeat_interval(150);
}
SpinBox::~SpinBox()
{
}
void SpinBox::set_value(int value)
{
value = clamp(value, m_min, m_max);
if (m_value == value)
return;
m_value = value;
m_editor->set_text(String::number(value));
update();
if (on_change)
on_change(value);
}
void SpinBox::set_range(int min, int max)
{
ASSERT(min <= max);
if (m_min == min && m_max == max)
return;
m_min = min;
m_max = max;
int old_value = m_value;
m_value = clamp(m_value, m_min, m_max);
if (m_value != old_value) {
m_editor->set_text(String::number(m_value));
if (on_change)
on_change(m_value);
}
update();
}
void SpinBox::keydown_event(KeyEvent& event)
{
if (event.key() == KeyCode::Key_Up) {
set_value(m_value + 1);
return;
}
if (event.key() == KeyCode::Key_Down) {
set_value(m_value - 1);
return;
}
event.ignore();
}
void SpinBox::mousewheel_event(MouseEvent& event)
{
set_value(m_value - event.wheel_delta());
}
void SpinBox::resize_event(ResizeEvent& event)
{
int frame_thickness = m_editor->frame_thickness();
int button_height = (event.size().height() / 2) - frame_thickness;
int button_width = 15;
m_increment_button->set_relative_rect(width() - button_width - frame_thickness, frame_thickness, button_width, button_height);
m_decrement_button->set_relative_rect(width() - button_width - frame_thickness, frame_thickness + button_height, button_width, button_height);
m_editor->set_relative_rect(0, 0, width(), height());
}
}
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