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-rw-r--r--src/guichan/widgets/textbox.cpp485
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diff --git a/src/guichan/widgets/textbox.cpp b/src/guichan/widgets/textbox.cpp
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-/* _______ __ __ __ ______ __ __ _______ __ __
- * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
- * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
- * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
- * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
- * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
- * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
- *
- * 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"
-
-#include "debug.h"
-
-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.empty())
- 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(" ");
-
- // 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;
- }
-}
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