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Diffstat (limited to 'src/guichan/widgets/listbox.cpp')
| -rw-r--r-- | src/guichan/widgets/listbox.cpp | 330 |
1 files changed, 0 insertions, 330 deletions
diff --git a/src/guichan/widgets/listbox.cpp b/src/guichan/widgets/listbox.cpp deleted file mode 100644 index 95f04fc68..000000000 --- a/src/guichan/widgets/listbox.cpp +++ /dev/null @@ -1,330 +0,0 @@ -/* _______ __ __ __ ______ __ __ _______ __ __ - * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ - * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / - * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / - * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / - * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / - * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ - * - * 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/listbox.hpp" - -#include "guichan/basiccontainer.hpp" -#include "guichan/font.hpp" -#include "guichan/graphics.hpp" -#include "guichan/key.hpp" -#include "guichan/listmodel.hpp" -#include "guichan/mouseinput.hpp" -#include "guichan/selectionlistener.hpp" - -#include "debug.h" - -namespace gcn -{ - ListBox::ListBox() : - mSelected(-1), - mListModel(NULL), - mWrappingEnabled(false) - { - setWidth(100); - setFocusable(true); - - addMouseListener(this); - addKeyListener(this); - } - - ListBox::ListBox(ListModel *listModel) : - mSelected(-1), - mWrappingEnabled(false) - { - setWidth(100); - setListModel(listModel); - setFocusable(true); - - addMouseListener(this); - addKeyListener(this); - } - - void ListBox::draw(Graphics* graphics) - { - graphics->setColor(getBackgroundColor()); - graphics->fillRectangle(Rectangle(0, 0, getWidth(), getHeight())); - - if (mListModel == NULL) - return; - - graphics->setColor(getForegroundColor()); - graphics->setFont(getFont()); - - // Check the current clip area so we don't draw unnecessary items - // that are not visible. - const ClipRectangle currentClipArea = graphics->getCurrentClipArea(); - int rowHeight = getRowHeight(); - - // Calculate the number of rows to draw by checking the clip area. - // The addition of two makes covers a partial visible row at the top - // and a partial visible row at the bottom. - int numberOfRows = currentClipArea.height / rowHeight + 2; - - if (numberOfRows > mListModel->getNumberOfElements()) - numberOfRows = mListModel->getNumberOfElements(); - - // Calculate which row to start drawing. If the list box - // has a negative y coordinate value we should check if - // we should drop rows in the begining of the list as - // they might not be visible. A negative y value is very - // common if the list box for instance resides in a scroll - // area and the user has scrolled the list box downwards. - int startRow; - if (getY() < 0) - startRow = -1 * (getY() / rowHeight); - else - startRow = 0; - - int i; - // The y coordinate where we start to draw the text is - // simply the y coordinate multiplied with the font height. - int y = rowHeight * startRow; - for (i = startRow; i < startRow + numberOfRows; ++i) - { - if (i == mSelected) - { - graphics->setColor(getSelectionColor()); - graphics->fillRectangle(Rectangle(0, y, - getWidth(), rowHeight)); - graphics->setColor(getForegroundColor()); - } - - // If the row height is greater than the font height we - // draw the text with a center vertical alignment. - if (rowHeight > getFont()->getHeight()) - { - graphics->drawText(mListModel->getElementAt(i), 1, - y + rowHeight / 2 - getFont()->getHeight() / 2); - } - else - { - graphics->drawText(mListModel->getElementAt(i), 1, y); - } - - y += rowHeight; - } - } - - void ListBox::logic() - { - adjustSize(); - } - - int ListBox::getSelected() const - { - return mSelected; - } - - void ListBox::setSelected(int selected) - { - if (mListModel == NULL) - { - mSelected = -1; - } - else - { - if (selected < 0) - mSelected = -1; - else if (selected >= mListModel->getNumberOfElements()) - mSelected = mListModel->getNumberOfElements() - 1; - else - mSelected = selected; - } - - Rectangle scroll; - - if (mSelected < 0) - scroll.y = 0; - else - scroll.y = getRowHeight() * mSelected; - - scroll.height = getRowHeight(); - showPart(scroll); - - distributeValueChangedEvent(); - } - - void ListBox::keyPressed(KeyEvent& keyEvent) - { - Key key = keyEvent.getKey(); - - if (key.getValue() == Key::ENTER || key.getValue() == Key::SPACE) - { - distributeActionEvent(); - keyEvent.consume(); - } - else if (key.getValue() == Key::UP) - { - setSelected(mSelected - 1); - - if (mSelected == -1) - { - if (mWrappingEnabled) - setSelected(getListModel()->getNumberOfElements() - 1); - else - setSelected(0); - } - - keyEvent.consume(); - } - else if (key.getValue() == Key::DOWN) - { - if (mWrappingEnabled - && getSelected() == getListModel()->getNumberOfElements() - 1) - { - setSelected(0); - } - else - { - setSelected(getSelected() + 1); - } - - keyEvent.consume(); - } - else if (key.getValue() == Key::HOME) - { - setSelected(0); - keyEvent.consume(); - } - else if (key.getValue() == Key::END) - { - setSelected(getListModel()->getNumberOfElements() - 1); - keyEvent.consume(); - } - } - - void ListBox::mousePressed(MouseEvent& mouseEvent) - { - if (mouseEvent.getButton() == MouseEvent::LEFT) - { - setSelected(mouseEvent.getY() / getRowHeight()); - distributeActionEvent(); - } - } - - void ListBox::mouseWheelMovedUp(MouseEvent& mouseEvent) - { - if (isFocused()) - { - if (getSelected() > 0 ) - setSelected(getSelected() - 1); - - mouseEvent.consume(); - } - } - - void ListBox::mouseWheelMovedDown(MouseEvent& mouseEvent) - { - if (isFocused()) - { - setSelected(getSelected() + 1); - - mouseEvent.consume(); - } - } - - void ListBox::mouseDragged(MouseEvent& mouseEvent) - { - mouseEvent.consume(); - } - - void ListBox::setListModel(ListModel *listModel) - { - mSelected = -1; - mListModel = listModel; - adjustSize(); - } - - ListModel* ListBox::getListModel() - { - return mListModel; - } - - void ListBox::adjustSize() - { - if (mListModel != NULL) - setHeight(getRowHeight() * mListModel->getNumberOfElements()); - } - - bool ListBox::isWrappingEnabled() const - { - return mWrappingEnabled; - } - - void ListBox::setWrappingEnabled(bool wrappingEnabled) - { - mWrappingEnabled = wrappingEnabled; - } - - void ListBox::addSelectionListener(SelectionListener* selectionListener) - { - mSelectionListeners.push_back(selectionListener); - } - - void ListBox::removeSelectionListener(SelectionListener* selectionListener) - { - mSelectionListeners.remove(selectionListener); - } - - void ListBox::distributeValueChangedEvent() - { - SelectionListenerIterator iter; - - for (iter = mSelectionListeners.begin(); - iter != mSelectionListeners.end(); - ++ iter) - { - SelectionEvent event(this); - (*iter)->valueChanged(event); - } - } - - unsigned int ListBox::getRowHeight() const - { - return getFont()->getHeight(); - } -} |