ladybird/Userland/Applications/PixelPaint/Tool.cpp
Mustafa Quraish d28fb8926f PixelPaint: Add mechanism for tools to use keyboard shortcuts
There are quite a few tools that might want to change certain values
based on consistent keyboard shortcuts. This commit allows tools to
hook up a "primary" and "secondary" slider with the base `Tool`
class, which can then handle updating those sliders with the common
shortcuts.

Note that any derived classes that want to override the `on_keydown`
function will manually need to call `Tool::on_keydown()`.
2021-09-04 03:33:44 +02:00

56 lines
1.2 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, Mustafa Quraish <mustafa@cs.toronto.edu>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "Tool.h"
#include "ImageEditor.h"
#include <LibGUI/Action.h>
namespace PixelPaint {
Tool::Tool()
{
}
Tool::~Tool()
{
}
void Tool::setup(ImageEditor& editor)
{
m_editor = editor;
}
void Tool::set_action(GUI::Action* action)
{
m_action = action;
}
void Tool::on_keydown(GUI::KeyEvent& event)
{
switch (event.key()) {
case KeyCode::Key_LeftBracket:
if (m_primary_slider)
m_primary_slider->set_value(m_primary_slider->value() - 1);
break;
case KeyCode::Key_RightBracket:
if (m_primary_slider)
m_primary_slider->set_value(m_primary_slider->value() + 1);
break;
case KeyCode::Key_LeftBrace:
if (m_secondary_slider)
m_secondary_slider->set_value(m_secondary_slider->value() - 1);
break;
case KeyCode::Key_RightBrace:
if (m_secondary_slider)
m_secondary_slider->set_value(m_secondary_slider->value() + 1);
break;
default:
break;
}
}
}