/* * The ManaPlus Client * Copyright (C) 2004-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * 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/>. */ #include "gui/widgets/listbox.h" #include "client.h" #include "input/keydata.h" #include "input/keyevent.h" #include "gui/gui.h" #include "gui/base/focushandler.hpp" #include "gui/base/font.hpp" #include "gui/base/listmodel.hpp" #include "render/graphics.h" #include "debug.h" float ListBox::mAlpha = 1.0; ListBox::ListBox(const Widget2 *const widget, gcn::ListModel *const listModel, const std::string &skin) : gcn::ListBox(listModel), Widget2(widget), mHighlightColor(getThemeColor(Theme::HIGHLIGHT)), mForegroundSelectedColor(getThemeColor(Theme::LISTBOX_SELECTED)), mForegroundSelectedColor2(getThemeColor(Theme::LISTBOX_SELECTED_OUTLINE)), mOldSelected(-1), mPadding(0), mPressedIndex(-2), mRowHeight(0), mItemPadding(1), mSkin(nullptr), mDistributeMousePressed(true), mCenterText(false) { mForegroundColor = getThemeColor(Theme::LISTBOX); mForegroundColor2 = getThemeColor(Theme::LISTBOX_OUTLINE); Theme *const theme = Theme::instance(); if (theme) mSkin = theme->load(skin, "listbox.xml"); if (mSkin) { mPadding = mSkin->getPadding(); mItemPadding = mSkin->getOption("itemPadding"); } const gcn::Font *const font = getFont(); if (font) mRowHeight = font->getHeight() + 2 * mItemPadding; else mRowHeight = 13; } void ListBox::postInit() { adjustSize(); } ListBox::~ListBox() { if (gui) gui->removeDragged(this); if (Theme::instance()) Theme::instance()->unload(mSkin); } void ListBox::updateAlpha() { const float alpha = std::max(client->getGuiAlpha(), Theme::instance()->getMinimumOpacity()); if (mAlpha != alpha) mAlpha = alpha; } void ListBox::draw(Graphics *graphics) { if (!mListModel) return; BLOCK_START("ListBox::draw") updateAlpha(); mHighlightColor.a = static_cast<int>(mAlpha * 255.0F); graphics->setColor(mHighlightColor); gcn::Font *const font = getFont(); const int rowHeight = getRowHeight(); const int width = mDimension.width; if (mCenterText) { // Draw filled rectangle around the selected list element if (mSelected >= 0) { graphics->fillRectangle(gcn::Rectangle(mPadding, rowHeight * mSelected + mPadding, mDimension.width - 2 * mPadding, rowHeight)); graphics->setColorAll(mForegroundSelectedColor, mForegroundSelectedColor2); const std::string str = mListModel->getElementAt(mSelected); font->drawString(graphics, str, (width - font->getWidth(str)) / 2, mSelected * rowHeight + mPadding + mItemPadding); } // Draw the list elements graphics->setColorAll(mForegroundColor, mForegroundColor2); const int sz = mListModel->getNumberOfElements(); for (int i = 0, y = mPadding + mItemPadding; i < sz; ++i, y += rowHeight) { if (i != mSelected) { const std::string str = mListModel->getElementAt(i); font->drawString(graphics, str, (width - font->getWidth(str)) / 2, y); } } } else { // Draw filled rectangle around the selected list element if (mSelected >= 0) { graphics->fillRectangle(gcn::Rectangle(mPadding, rowHeight * mSelected + mPadding, mDimension.width - 2 * mPadding, rowHeight)); graphics->setColorAll(mForegroundSelectedColor, mForegroundSelectedColor2); const std::string str = mListModel->getElementAt(mSelected); font->drawString(graphics, str, mPadding, mSelected * rowHeight + mPadding + mItemPadding); } // Draw the list elements graphics->setColorAll(mForegroundColor, mForegroundColor2); const int sz = mListModel->getNumberOfElements(); for (int i = 0, y = mPadding + mItemPadding; i < sz; ++i, y += rowHeight) { if (i != mSelected) { const std::string str = mListModel->getElementAt(i); font->drawString(graphics, str, mPadding, y); } } } BLOCK_END("ListBox::draw") } void ListBox::keyPressed(gcn::KeyEvent &keyEvent) { const int action = static_cast<KeyEvent*>(&keyEvent)->getActionId(); if (action == Input::KEY_GUI_SELECT) { distributeActionEvent(); keyEvent.consume(); } else if (action == Input::KEY_GUI_UP) { if (mSelected > 0) setSelected(mSelected - 1); else if (mSelected == 0 && mWrappingEnabled && getListModel()) setSelected(getListModel()->getNumberOfElements() - 1); keyEvent.consume(); } else if (action == Input::KEY_GUI_DOWN) { const int num = getListModel()->getNumberOfElements() - 1; if (mSelected < num) setSelected(mSelected + 1); else if (mSelected == num && mWrappingEnabled) setSelected(0); keyEvent.consume(); } else if (action == Input::KEY_GUI_HOME) { setSelected(0); keyEvent.consume(); } else if (action == Input::KEY_GUI_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 A_UNUSED) { } void ListBox::mouseWheelMovedDown(gcn::MouseEvent &mouseEvent A_UNUSED) { } void ListBox::mousePressed(gcn::MouseEvent &event) { mPressedIndex = getSelectionByMouse(event.getY()); } void ListBox::mouseReleased(gcn::MouseEvent &event) { if (mPressedIndex != getSelectionByMouse(event.getY())) return; if (mDistributeMousePressed) { mouseReleased1(event); } else { switch (event.getClickCount()) { case 1: mouseDragged(event); mOldSelected = mSelected; break; case 2: if (gui) gui->resetClickCount(); if (mOldSelected == mSelected) mouseReleased1(event); else mouseDragged(event); mOldSelected = mSelected; break; default: mouseDragged(event); mOldSelected = mSelected; break; } } mPressedIndex = -2; } void ListBox::mouseReleased1(const gcn::MouseEvent &mouseEvent) { if (mouseEvent.getButton() == gcn::MouseEvent::LEFT) { setSelected(std::max(0, getSelectionByMouse(mouseEvent.getY()))); distributeActionEvent(); } } 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 if (getRowHeight()) setSelected(std::max(0, getSelectionByMouse(event.getY()))); } void ListBox::refocus() { if (!mFocusHandler) return; if (isFocusable()) mFocusHandler->requestFocus(this); } void ListBox::adjustSize() { BLOCK_START("ListBox::adjustSize") if (mListModel) { setHeight(getRowHeight() * mListModel->getNumberOfElements() + 2 * mPadding); } BLOCK_END("ListBox::adjustSize") } void ListBox::logic() { BLOCK_START("ListBox::logic") adjustSize(); BLOCK_END("ListBox::logic") } int ListBox::getSelectionByMouse(const int y) const { if (y < mPadding) return -1; return (y - mPadding) / getRowHeight(); }