/* * The ManaPlus Client * Copyright (C) 2006-2009 The Mana World Development Team * Copyright (C) 2009-2010 The Mana Developers * Copyright (C) 2011-2012 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/dropdown.h" #include "client.h" #include "configuration.h" #include "graphics.h" #include "keydata.h" #include "keyevent.h" #include "gui/palette.h" #include "gui/sdlinput.h" #include "gui/theme.h" #include "gui/widgets/listbox.h" #include "gui/widgets/scrollarea.h" #include "resources/image.h" #include "utils/dtor.h" #include <guichan/font.hpp> #include <algorithm> #include "debug.h" int DropDown::instances = 0; Image *DropDown::buttons[2][2]; ImageRect DropDown::skinRect; float DropDown::mAlpha = 1.0; Skin *DropDown::mSkin = nullptr; static std::string const dropdownFiles[2] = { "dropdown.xml", "dropdown_pressed.xml" }; DropDown::DropDown(const Widget2 *const widget, gcn::ListModel *const listModel, gcn::ActionListener *const listener, const std::string &eventId): gcn::DropDown::DropDown(listModel, new ScrollArea, new ListBox(widget, listModel)), mShadowColor(getThemeColor(Theme::DROPDOWN_SHADOW)), mHighlightColor(getThemeColor(Theme::HIGHLIGHT)), mPadding(1), mImagePadding(2) { mFrameSize = 2; // Initialize graphics if (instances == 0) { // Load the background skin for (int i = 0; i < 2; i ++) { Skin *skin = Theme::instance()->load( dropdownFiles[i], "dropdown.xml"); if (skin) { if (!i) mSkin = skin; const ImageRect &rect = skin->getBorder(); for (int f = 0; f < 2; f ++) { if (rect.grid[f]) { rect.grid[f]->incRef(); buttons[f][i] = rect.grid[f]; buttons[f][i]->setAlpha(mAlpha); } else { buttons[f][i] = nullptr; } } if (i) Theme::instance()->unload(skin); } else { for (int f = 0; f < 2; f ++) buttons[f][i] = nullptr; } } // get the border skin if (Theme::instance()) { Theme::instance()->loadRect(skinRect, "dropdown_background.xml", ""); } } instances++; mListBox->setForegroundColor(getThemeColor(Theme::DROPDOWN)); setForegroundColor(getThemeColor(Theme::DROPDOWN)); if (!eventId.empty()) setActionEventId(eventId); if (listener) addActionListener(listener); if (mListBox) mListBox->adjustSize(); if (mSkin) { mFrameSize = mSkin->getOption("frameSize"); mPadding = mSkin->getPadding(); mImagePadding = mSkin->getOption("imagePadding"); } adjustHeight(); } DropDown::~DropDown() { instances--; if (instances == 0) { for (int f = 0; f < 2; f ++) { for (int i = 0; i < 2; i ++) { if (buttons[f][i]) buttons[f][i]->decRef(); } } Theme *const theme = Theme::instance(); if (theme) { theme->unload(mSkin); theme->unloadRect(skinRect); } } delete mScrollArea; mScrollArea = nullptr; } void DropDown::updateAlpha() { const float alpha = std::max(Client::getGuiAlpha(), Theme::instance()->getMinimumOpacity()); if (mAlpha != alpha) { mAlpha = alpha; if (buttons[0][0]) buttons[0][0]->setAlpha(mAlpha); if (buttons[0][1]) buttons[0][1]->setAlpha(mAlpha); if (buttons[1][0]) buttons[1][0]->setAlpha(mAlpha); if (buttons[1][1]) buttons[1][1]->setAlpha(mAlpha); for (int a = 0; a < 9; a++) { if (skinRect.grid[a]) skinRect.grid[a]->setAlpha(mAlpha); } } } void DropDown::draw(gcn::Graphics* graphics) { int h; if (mDroppedDown) h = mFoldedUpHeight; else h = getHeight(); updateAlpha(); const int alpha = static_cast<int>(mAlpha * 255.0f); const int pad = 2 * mPadding; mHighlightColor.a = alpha; mShadowColor.a = alpha; if (mListBox->getListModel() && mListBox->getSelected() >= 0) { graphics->setFont(getFont()); graphics->setColor(mForegroundColor); graphics->drawText(mListBox->getListModel()->getElementAt( mListBox->getSelected()), mPadding, mPadding); } if (isFocused()) { graphics->setColor(mHighlightColor); graphics->drawRectangle(gcn::Rectangle(mPadding, mPadding, getWidth() - h - pad, h - pad)); } drawButton(graphics); if (mDroppedDown) { drawChildren(graphics); // Draw two lines separating the ListBox with selected // element view. graphics->setColor(mHighlightColor); graphics->drawLine(0, h, getWidth(), h); graphics->setColor(mShadowColor); graphics->drawLine(0, h + 1, getWidth(), h + 1); } } void DropDown::drawFrame(gcn::Graphics *graphics) { const int bs = getFrameSize(); const int w = getWidth() + bs * 2; const int h = getHeight() + bs * 2; static_cast<Graphics*>(graphics)->drawImageRect(0, 0, w, h, skinRect); } void DropDown::drawButton(gcn::Graphics *graphics) { const int height = mDroppedDown ? mFoldedUpHeight : getHeight(); Image *image = buttons[mDroppedDown][mPushed]; if (image) { static_cast<Graphics*>(graphics)->drawImage(image, getWidth() - image->getWidth() - mImagePadding, (height - image->getHeight()) / 2); } } // -- KeyListener notifications void DropDown::keyPressed(gcn::KeyEvent& keyEvent) { if (keyEvent.isConsumed()) return; const int actionId = static_cast<KeyEvent*>(&keyEvent)->getActionId(); switch (actionId) { case Input::KEY_GUI_SELECT: case Input::KEY_GUI_SELECT2: dropDown(); break; case Input::KEY_GUI_UP: setSelected(getSelected() - 1); break; case Input::KEY_GUI_DOWN: setSelected(getSelected() + 1); break; case Input::KEY_GUI_HOME: setSelected(0); break; case Input::KEY_GUI_END: if (mListBox->getListModel()) { setSelected(mListBox->getListModel()-> getNumberOfElements() - 1); } break; default: return; } keyEvent.consume(); } void DropDown::focusLost(const gcn::Event& event) { gcn::DropDown::focusLost(event); releaseModalMouseInputFocus(); } void DropDown::mousePressed(gcn::MouseEvent& mouseEvent) { gcn::DropDown::mousePressed(mouseEvent); if (0 <= mouseEvent.getY() && mouseEvent.getY() < getHeight() && mouseEvent.getX() >= 0 && mouseEvent.getX() < getWidth() && mouseEvent.getButton() == gcn::MouseEvent::LEFT && mDroppedDown && mouseEvent.getSource() == mListBox) { mPushed = false; foldUp(); releaseModalMouseInputFocus(); distributeActionEvent(); } } void DropDown::mouseWheelMovedUp(gcn::MouseEvent& mouseEvent) { setSelected(getSelected() - 1); mouseEvent.consume(); } void DropDown::mouseWheelMovedDown(gcn::MouseEvent& mouseEvent) { setSelected(getSelected() + 1); mouseEvent.consume(); } void DropDown::setSelectedString(std::string str) { gcn::ListModel *const listModel = mListBox->getListModel(); if (!listModel) return; for (int f = 0; f < listModel->getNumberOfElements(); f ++) { if (listModel->getElementAt(f) == str) { setSelected(f); break; } } } std::string DropDown::getSelectedString() const { gcn::ListModel *const listModel = mListBox->getListModel(); if (!listModel) return ""; return listModel->getElementAt(getSelected()); } void DropDown::adjustHeight() { if (!mScrollArea || !mListBox) return; const int listBoxHeight = mListBox->getHeight(); const int h2 = getFont()->getHeight() + 2 * mPadding; int newHeight = h2; if (mDroppedDown && getParent()) { const int h = getParent()->getChildrenArea().height - getY(); const int h0 = h - h2; if (listBoxHeight > h0) { mScrollArea->setHeight(h0); newHeight = h; } else { newHeight = listBoxHeight + h2; mScrollArea->setHeight(listBoxHeight); } } setHeight(newHeight); mScrollArea->setWidth(getWidth()); mListBox->setWidth(mScrollArea->getChildrenArea().width); mScrollArea->setPosition(0, 0); } void DropDown::dropDown() { const bool dropped = mDroppedDown; gcn::DropDown::dropDown(); if (!dropped) adjustHeight(); } void DropDown::foldUp() { const bool dropped = mDroppedDown; gcn::DropDown::foldUp(); if (dropped) adjustHeight(); }