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Diffstat (limited to 'src/gui/base/widgets/textbox.cpp')
| -rw-r--r-- | src/gui/base/widgets/textbox.cpp | 345 |
1 files changed, 345 insertions, 0 deletions
diff --git a/src/gui/base/widgets/textbox.cpp b/src/gui/base/widgets/textbox.cpp new file mode 100644 index 000000000..2e9ca0563 --- /dev/null +++ b/src/gui/base/widgets/textbox.cpp @@ -0,0 +1,345 @@ +/* + * The ManaPlus Client + * Copyright (C) 2011-2014 The ManaPlus Developers + * + * This file is part of The ManaPlus Client. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naessén a.k.a jansem/yakslem + * + * Visit: http://guichan.sourceforge.net + * + * License: (BSD) + * 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. + * 3. Neither the name of Guichan nor the names of its contributors may + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * 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 + * OWNER 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. + */ + +/* + * For comments regarding functions please see the header file. + */ + +#include "gui/base/widgets/textbox.hpp" + +#include "gui/base/basiccontainer.hpp" +#include "gui/base/font.hpp" +#include "gui/base/graphics.hpp" +#include "gui/base/key.hpp" +#include "gui/base/mouseinput.hpp" + +#include "debug.h" + +namespace gcn +{ + TextBox::TextBox() : + gcn::Widget(), + gcn::MouseListener(), + gcn::KeyListener(), + mTextRows(), + mCaretColumn(0), + mCaretRow(0), + mEditable(true), + mOpaque(true) + { + setText(""); + setFocusable(true); + + addMouseListener(this); + addKeyListener(this); + adjustSize(); + } + + TextBox::TextBox(const std::string& text) : + gcn::Widget(), + gcn::MouseListener(), + gcn::KeyListener(), + mTextRows(), + mCaretColumn(0), + mCaretRow(0), + mEditable(true), + mOpaque(true) + { + setText(text); + setFocusable(true); + + addMouseListener(this); + addKeyListener(this); + adjustSize(); + } + + void TextBox::setText(const std::string& text) + { + mCaretColumn = 0; + mCaretRow = 0; + + mTextRows.clear(); + + size_t pos, lastPos = 0; + int length; + do + { + pos = text.find("\n", lastPos); + + if (pos != std::string::npos) + length = static_cast<int>(pos - lastPos); + else + length = static_cast<int>(text.size() - lastPos); + std::string sub = text.substr(lastPos, length); + mTextRows.push_back(sub); + lastPos = pos + 1; + } while (pos != std::string::npos); + + adjustSize(); + } + +/* + void TextBox::draw(Graphics* graphics) + { + } +*/ + + void TextBox::drawCaret(Graphics* graphics, int x, int y) + { + graphics->setColor(mForegroundColor); + graphics->drawLine(x, getFont()->getHeight() + y, x, y); + } + + void TextBox::mousePressed(MouseEvent& mouseEvent) + { + if (mouseEvent.getButton() == MouseEvent::LEFT) + { + mCaretRow = mouseEvent.getY() / getFont()->getHeight(); + + const int sz = static_cast<int>(mTextRows.size()); + if (mCaretRow >= sz) + mCaretRow = sz - 1; + + mCaretColumn = getFont()->getStringIndexAt( + mTextRows[mCaretRow], mouseEvent.getX()); + } + } + + void TextBox::mouseDragged(MouseEvent& mouseEvent) + { + mouseEvent.consume(); + } + + void TextBox::keyPressed(KeyEvent& keyEvent A_UNUSED) + { + } + + void TextBox::adjustSize() + { + int width = 0; + for (size_t i = 0, sz = mTextRows.size(); i < sz; ++i) + { + const int w = getFont()->getWidth(mTextRows[i]); + if (width < w) + width = w; + } + + setWidth(width + 1); + setHeight(static_cast<int>(getFont()->getHeight() * mTextRows.size())); + } + + void TextBox::setCaretPosition(unsigned int position) + { + for (int row = 0, sz = static_cast<int>(mTextRows.size()); + row < sz; row ++) + { + if (position <= mTextRows[row].size()) + { + mCaretRow = row; + mCaretColumn = position; + return; // we are done + } + else + { + position--; + } + } + + // position beyond end of text + mCaretRow = static_cast<int>(mTextRows.size() - 1); + mCaretColumn = static_cast<int>(mTextRows[mCaretRow].size()); + } + + unsigned int TextBox::getCaretPosition() const + { + int pos = 0, row; + + for (row = 0; row < mCaretRow; row++) + pos += static_cast<int>(mTextRows[row].size()); + + return pos + mCaretColumn; + } + + void TextBox::setCaretRowColumn(int row, int column) + { + setCaretRow(row); + setCaretColumn(column); + } + + void TextBox::setCaretRow(int row) + { + mCaretRow = row; + + const int sz = static_cast<int>(mTextRows.size()); + if (mCaretRow >= sz) + mCaretRow = sz - 1; + + if (mCaretRow < 0) + mCaretRow = 0; + + setCaretColumn(mCaretColumn); + } + + unsigned int TextBox::getCaretRow() const + { + return mCaretRow; + } + + void TextBox::setCaretColumn(int column) + { + mCaretColumn = column; + + const int sz = static_cast<int>(mTextRows[mCaretRow].size()); + if (mCaretColumn > sz) + mCaretColumn = sz; + + if (mCaretColumn < 0) + mCaretColumn = 0; + } + + unsigned int TextBox::getCaretColumn() const + { + return mCaretColumn; + } + + const std::string& TextBox::getTextRow(int row) const + { + return mTextRows[row]; + } + + void TextBox::setTextRow(int row, const std::string& text) + { + mTextRows[row] = text; + + if (mCaretRow == row) + setCaretColumn(mCaretColumn); + + adjustSize(); + } + + unsigned int TextBox::getNumberOfRows() const + { + return static_cast<int>(mTextRows.size()); + } + + std::string TextBox::getText() const + { + if (mTextRows.empty()) + return std::string(""); + + int i; + std::string text; + + const int sz = static_cast<int>(mTextRows.size()); + for (i = 0; i < sz - 1; ++ i) + text.append(mTextRows[i]).append("\n"); + text.append(mTextRows[i]); + + return text; + } + + void TextBox::fontChanged() + { + adjustSize(); + } + + void TextBox::scrollToCaret() + { + Rectangle scroll; + scroll.x = getFont()->getWidth( + mTextRows[mCaretRow].substr(0, mCaretColumn)); + scroll.y = getFont()->getHeight() * mCaretRow; + scroll.width = getFont()->getWidth(" "); + + // add 2 for some extra space + scroll.height = getFont()->getHeight() + 2; + + showPart(scroll); + } + + void TextBox::setEditable(bool editable) + { + mEditable = editable; + } + + bool TextBox::isEditable() const + { + return mEditable; + } + + void TextBox::addRow(const std::string &row) + { + mTextRows.push_back(row); + adjustSize(); + } + + bool TextBox::isOpaque() + { + return mOpaque; + } + + void TextBox::setOpaque(bool opaque) + { + mOpaque = opaque; + } +} // namespace gcn |