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Diffstat (limited to 'src/gui/widgets/listbox.cpp')
-rw-r--r-- | src/gui/widgets/listbox.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/gui/widgets/listbox.cpp b/src/gui/widgets/listbox.cpp new file mode 100644 index 000000000..8dcc4ae67 --- /dev/null +++ b/src/gui/widgets/listbox.cpp @@ -0,0 +1,146 @@ +/* + * The Mana Client + * Copyright (C) 2004-2009 The Mana World Development Team + * Copyright (C) 2009-2010 The Mana Developers + * + * This file is part of The Mana 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/>. + */ + +#include "gui/widgets/listbox.h" + +#include "client.h" +#include "configuration.h" + +#include "gui/palette.h" +#include "gui/sdlinput.h" +#include "gui/theme.h" + +#include <guichan/font.hpp> +#include <guichan/graphics.hpp> +#include <guichan/key.hpp> +#include <guichan/listmodel.hpp> + +float ListBox::mAlpha = 1.0; + +ListBox::ListBox(gcn::ListModel *listModel): + gcn::ListBox(listModel) +{ +} + +ListBox::~ListBox() +{ +} + +void ListBox::updateAlpha() +{ + float alpha = std::max(Client::getGuiAlpha(), + Theme::instance()->getMinimumOpacity()); + + if (mAlpha != alpha) + mAlpha = alpha; +} + +void ListBox::draw(gcn::Graphics *graphics) +{ + if (!mListModel) + return; + + updateAlpha(); + + graphics->setColor(Theme::getThemeColor(Theme::HIGHLIGHT, + static_cast<int>(mAlpha * 255.0f))); + graphics->setFont(getFont()); + + const int height = getRowHeight(); + + // Draw filled rectangle around the selected list element + if (mSelected >= 0) + { + graphics->fillRectangle(gcn::Rectangle(0, height * mSelected, + getWidth(), height)); + } + + // Draw the list elements + graphics->setColor(Theme::getThemeColor(Theme::TEXT)); + for (int i = 0, y = 0; i < mListModel->getNumberOfElements(); + ++i, y += height) + { + graphics->drawText(mListModel->getElementAt(i), 1, y); + } +} + +void ListBox::keyPressed(gcn::KeyEvent& keyEvent) +{ + gcn::Key key = keyEvent.getKey(); + + if (key.getValue() == Key::ENTER || key.getValue() == Key::SPACE) + { + distributeActionEvent(); + keyEvent.consume(); + } + else if (key.getValue() == Key::UP) + { + if (getSelected() > 0) + setSelected(mSelected - 1); + else if (getSelected() == 0 && mWrappingEnabled && getListModel()) + setSelected(getListModel()->getNumberOfElements() - 1); + keyEvent.consume(); + } + else if (key.getValue() == Key::DOWN) + { + if (getSelected() < (getListModel()->getNumberOfElements() - 1)) + { + setSelected(mSelected + 1); + } + else if (getSelected() == (getListModel()->getNumberOfElements() - 1) + && mWrappingEnabled) + { + setSelected(0); + } + keyEvent.consume(); + } + else if (key.getValue() == Key::HOME) + { + setSelected(0); + keyEvent.consume(); + } + else if (key.getValue() == Key::END && getListModel()) + { + setSelected(getListModel()->getNumberOfElements() - 1); + keyEvent.consume(); + } +} + +// Don't do anything on scrollwheel. ScrollArea will deal with that. + +void ListBox::mouseWheelMovedUp(gcn::MouseEvent &mouseEvent _UNUSED_) +{ +} + +void ListBox::mouseWheelMovedDown(gcn::MouseEvent &mouseEvent _UNUSED_) +{ +} + +void ListBox::mouseDragged(gcn::MouseEvent &event) +{ + if (event.getButton() != gcn::MouseEvent::LEFT || getRowHeight() == 0) + return; + + // Make list selection update on drag, but guard against negative y + int y = std::max(0, event.getY()); + if (getRowHeight()) + setSelected(y / getRowHeight()); +} |