OpenMiner/source/client/gui/TextInput.cpp

84 lines
2.6 KiB
C++

/*
* =====================================================================================
*
* OpenMiner
*
* Copyright (C) 2018-2020 Unarelith, Quentin Bazin <openminer@unarelith.net>
* Copyright (C) 2019-2020 the OpenMiner contributors (see CONTRIBUTORS.md)
*
* This file is part of OpenMiner.
*
* OpenMiner is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* OpenMiner is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with OpenMiner; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* =====================================================================================
*/
#include <gk/resource/ResourceHandler.hpp>
#include "TextInput.hpp"
TextInput::TextInput(Widget *parent) : Widget(parent) {
m_cursor.setString("_");
m_placeholder.setColor(gk::Color(150, 150, 150));
}
void TextInput::onEvent(const SDL_Event &event) {
if (event.type == SDL_MOUSEBUTTONDOWN) {
m_hasFocus = isPointInWidget(event.button.x, event.button.y);
}
else if (m_hasFocus) {
if (event.type == SDL_KEYDOWN && event.key.keysym.sym == SDLK_BACKSPACE && !m_content.empty()) {
m_content.erase(m_content.begin() + m_content.length() - 1);
m_text.setString(m_content);
m_text.updateVertexBuffer();
m_cursor.setPosition(m_text.getSize().x, 0);
}
if (event.type == SDL_TEXTINPUT) {
std::string text = event.text.text;
for (char c : text) {
if (isprint(c) && (!m_characterLimit || m_content.size() < m_characterLimit)) {
m_content += c;
}
m_text.setString(m_content);
m_text.updateVertexBuffer();
m_cursor.setPosition(m_text.getSize().x, 0);
}
}
}
}
void TextInput::setString(const std::string &string) {
m_content = string;
m_text.setString(m_content);
m_text.updateVertexBuffer();
m_cursor.setPosition(m_text.getSize().x, 0);
}
void TextInput::draw(gk::RenderTarget &target, gk::RenderStates states) const {
states.transform *= getTransform();
target.draw(m_text, states);
if (m_hasFocus)
target.draw(m_cursor, states);
if (m_content.empty() && !m_hasFocus)
target.draw(m_placeholder, states);
}