From fc7928bab206892653a5a7279b384f2bcd323ea4 Mon Sep 17 00:00:00 2001 From: Andrei Karas Date: Mon, 30 May 2011 20:09:31 +0300 Subject: Add guichan files to automake --- src/guichan/widgets/textbox.cpp | 517 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 517 insertions(+) create mode 100644 src/guichan/widgets/textbox.cpp (limited to 'src/guichan/widgets/textbox.cpp') diff --git a/src/guichan/widgets/textbox.cpp b/src/guichan/widgets/textbox.cpp new file mode 100644 index 000000000..c57296f9c --- /dev/null +++ b/src/guichan/widgets/textbox.cpp @@ -0,0 +1,517 @@ +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * 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 "guichan/widgets/textbox.hpp" + +#include "guichan/basiccontainer.hpp" +#include "guichan/font.hpp" +#include "guichan/graphics.hpp" +#include "guichan/key.hpp" +#include "guichan/mouseinput.hpp" + +namespace gcn +{ + TextBox::TextBox() + { + mCaretColumn = 0; + mCaretRow = 0; + mEditable = true; + mOpaque = true; + + setText(""); + + setFocusable(true); + + addMouseListener(this); + addKeyListener(this); + adjustSize(); + } + + TextBox::TextBox(const std::string& text) + { + 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(); + + std::string::size_type pos, lastPos = 0; + int length; + do + { + pos = text.find("\n", lastPos); + + if (pos != std::string::npos) + { + length = pos - lastPos; + } + else + { + length = 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) + { + unsigned int i; + + if (mOpaque) + { + graphics->setColor(getBackgroundColor()); + graphics->fillRectangle(Rectangle(0, 0, getWidth(), getHeight())); + } + + if (isFocused() && isEditable()) + { + drawCaret(graphics, getFont()->getWidth(mTextRows[mCaretRow].substr(0, mCaretColumn)), mCaretRow * getFont()->getHeight()); + } + + graphics->setColor(getForegroundColor()); + graphics->setFont(getFont()); + + for (i = 0; i < mTextRows.size(); i++) + { + // Move the text one pixel so we can have a caret before a letter. + graphics->drawText(mTextRows[i], 1, i * getFont()->getHeight()); + } + } + + void TextBox::drawCaret(Graphics* graphics, int x, int y) + { + graphics->setColor(getForegroundColor()); + graphics->drawLine(x, getFont()->getHeight() + y, x, y); + } + + void TextBox::mousePressed(MouseEvent& mouseEvent) + { + if (mouseEvent.getButton() == MouseEvent::LEFT) + { + mCaretRow = mouseEvent.getY() / getFont()->getHeight(); + + if (mCaretRow >= (int)mTextRows.size()) + { + mCaretRow = mTextRows.size() - 1; + } + + mCaretColumn = getFont()->getStringIndexAt(mTextRows[mCaretRow], mouseEvent.getX()); + } + } + + void TextBox::mouseDragged(MouseEvent& mouseEvent) + { + mouseEvent.consume(); + } + + void TextBox::keyPressed(KeyEvent& keyEvent) + { + Key key = keyEvent.getKey(); + + if (key.getValue() == Key::LEFT) + { + --mCaretColumn; + if (mCaretColumn < 0) + { + --mCaretRow; + + if (mCaretRow < 0) + { + mCaretRow = 0; + mCaretColumn = 0; + } + else + { + mCaretColumn = mTextRows[mCaretRow].size(); + } + } + } + + else if (key.getValue() == Key::RIGHT) + { + ++mCaretColumn; + if (mCaretColumn > (int)mTextRows[mCaretRow].size()) + { + ++mCaretRow; + + if (mCaretRow >= (int)mTextRows.size()) + { + mCaretRow = mTextRows.size() - 1; + if (mCaretRow < 0) + { + mCaretRow = 0; + } + + mCaretColumn = mTextRows[mCaretRow].size(); + } + else + { + mCaretColumn = 0; + } + } + } + + else if (key.getValue() == Key::DOWN) + { + setCaretRow(mCaretRow + 1); + } + + else if (key.getValue() == Key::UP) + { + setCaretRow(mCaretRow - 1); + } + + else if (key.getValue() == Key::HOME) + { + mCaretColumn = 0; + } + + else if (key.getValue() == Key::END) + { + mCaretColumn = mTextRows[mCaretRow].size(); + } + + else if (key.getValue() == Key::ENTER && mEditable) + { + mTextRows.insert(mTextRows.begin() + mCaretRow + 1, + mTextRows[mCaretRow].substr(mCaretColumn, mTextRows[mCaretRow].size() - mCaretColumn)); + mTextRows[mCaretRow].resize(mCaretColumn); + ++mCaretRow; + mCaretColumn = 0; + } + + else if (key.getValue() == Key::BACKSPACE + && mCaretColumn != 0 + && mEditable) + { + mTextRows[mCaretRow].erase(mCaretColumn - 1, 1); + --mCaretColumn; + } + + else if (key.getValue() == Key::BACKSPACE + && mCaretColumn == 0 + && mCaretRow != 0 + && mEditable) + { + mCaretColumn = mTextRows[mCaretRow - 1].size(); + mTextRows[mCaretRow - 1] += mTextRows[mCaretRow]; + mTextRows.erase(mTextRows.begin() + mCaretRow); + --mCaretRow; + } + + else if (key.getValue() == Key::DELETE + && mCaretColumn < (int)mTextRows[mCaretRow].size() + && mEditable) + { + mTextRows[mCaretRow].erase(mCaretColumn, 1); + } + + else if (key.getValue() == Key::DELETE + && mCaretColumn == (int)mTextRows[mCaretRow].size() + && mCaretRow < ((int)mTextRows.size() - 1) + && mEditable) + { + mTextRows[mCaretRow] += mTextRows[mCaretRow + 1]; + mTextRows.erase(mTextRows.begin() + mCaretRow + 1); + } + + else if(key.getValue() == Key::PAGE_UP) + { + Widget* par = getParent(); + + if (par != NULL) + { + int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight(); + mCaretRow -= rowsPerPage; + + if (mCaretRow < 0) + { + mCaretRow = 0; + } + } + } + + else if(key.getValue() == Key::PAGE_DOWN) + { + Widget* par = getParent(); + + if (par != NULL) + { + int rowsPerPage = par->getChildrenArea().height / getFont()->getHeight(); + mCaretRow += rowsPerPage; + + if (mCaretRow >= (int)mTextRows.size()) + { + mCaretRow = mTextRows.size() - 1; + } + } + } + + else if(key.getValue() == Key::TAB + && mEditable) + { + mTextRows[mCaretRow].insert(mCaretColumn,std::string(" ")); + mCaretColumn += 4; + } + + else if (key.isCharacter() + && mEditable) + { + mTextRows[mCaretRow].insert(mCaretColumn,std::string(1,(char)key.getValue())); + ++mCaretColumn; + } + + adjustSize(); + scrollToCaret(); + + keyEvent.consume(); + } + + void TextBox::adjustSize() + { + unsigned int i; + int width = 0; + for (i = 0; i < mTextRows.size(); ++i) + { + int w = getFont()->getWidth(mTextRows[i]); + if (width < w) + { + width = w; + } + } + + setWidth(width + 1); + setHeight(getFont()->getHeight() * mTextRows.size()); + } + + void TextBox::setCaretPosition(unsigned int position) + { + int row; + + for (row = 0; row < (int)mTextRows.size(); row++) + { + if (position <= mTextRows[row].size()) + { + mCaretRow = row; + mCaretColumn = position; + return; // we are done + } + else + { + position--; + } + } + + // position beyond end of text + mCaretRow = mTextRows.size() - 1; + mCaretColumn = mTextRows[mCaretRow].size(); + } + + unsigned int TextBox::getCaretPosition() const + { + int pos = 0, row; + + for (row = 0; row < mCaretRow; row++) + { + pos += mTextRows[row].size(); + } + + return pos + mCaretColumn; + } + + void TextBox::setCaretRowColumn(int row, int column) + { + setCaretRow(row); + setCaretColumn(column); + } + + void TextBox::setCaretRow(int row) + { + mCaretRow = row; + + if (mCaretRow >= (int)mTextRows.size()) + { + mCaretRow = mTextRows.size() - 1; + } + + if (mCaretRow < 0) + { + mCaretRow = 0; + } + + setCaretColumn(mCaretColumn); + } + + unsigned int TextBox::getCaretRow() const + { + return mCaretRow; + } + + void TextBox::setCaretColumn(int column) + { + mCaretColumn = column; + + if (mCaretColumn > (int)mTextRows[mCaretRow].size()) + { + mCaretColumn = mTextRows[mCaretRow].size(); + } + + 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 mTextRows.size(); + } + + std::string TextBox::getText() const + { + if (mTextRows.size() == 0) + { + return std::string(""); + } + + int i; + std::string text; + + for (i = 0; i < (int)mTextRows.size() - 1; ++i) + { + text = text + mTextRows[i] + "\n"; + } + + text = text + 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(" "); + scroll.height = getFont()->getHeight() + 2; // add 2 for some extra space + + 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; + } +} -- cgit v1.2.3-70-g09d2