/* * 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 "keydata.h" #include "keyevent.h" #include "gui/sdlinput.h" #include "gui/viewport.h" #include "gui/widgets/listbox.h" #include "gui/widgets/popuplist.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::ActionListener(), gcn::BasicContainer(), gcn::KeyListener(), gcn::MouseListener(), gcn::FocusListener(), gcn::SelectionListener(), Widget2(widget), mPopup(new PopupList(this, listModel)), mShadowColor(getThemeColor(Theme::DROPDOWN_SHADOW)), mHighlightColor(getThemeColor(Theme::HIGHLIGHT)), mPadding(1), mImagePadding(2), mDroppedDown(false), mPushed(false), mFoldedUpHeight(0), mIsDragged(false) { mFrameSize = 2; mPopup->setHeight(100); // 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++; setWidth(100); setFocusable(true); setListModel(listModel); if (mPopup->getSelected() < 0) mPopup->setSelected(0); addMouseListener(this); addKeyListener(this); addFocusListener(this); adjustHeight(); mPopup->setForegroundColor(getThemeColor(Theme::DROPDOWN)); setForegroundColor(getThemeColor(Theme::DROPDOWN)); if (!eventId.empty()) setActionEventId(eventId); if (listener) addActionListener(listener); if (mPopup) mPopup->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); } } } 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) { BLOCK_START("DropDown::draw") 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 (mPopup->getListModel() && mPopup->getSelected() >= 0) { gcn::Font *const font = getFont(); graphics->setColor(mForegroundColor); font->drawString(graphics, mPopup->getListModel()->getElementAt( mPopup->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); } BLOCK_END("DropDown::draw") } void DropDown::drawFrame(gcn::Graphics *graphics) { BLOCK_START("DropDown::drawFrame") 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); BLOCK_END("DropDown::drawFrame") } 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); } } 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 (mPopup->getListModel()) { setSelected(mPopup->getListModel()-> getNumberOfElements() - 1); } break; default: return; } keyEvent.consume(); } void DropDown::hideDrop() { distributeActionEvent(); mPopup->setVisible(false); } void DropDown::mousePressed(gcn::MouseEvent& mouseEvent) { // If we have a mouse press on the widget. if (mouseEvent.getButton() == gcn::MouseEvent::LEFT && !mDroppedDown && mouseEvent.getSource() == this) { mPushed = true; dropDown(); } else { mPushed = false; foldUp(); hideDrop(); } } void DropDown::mouseReleased(gcn::MouseEvent &mouseEvent) { if (mIsDragged) mPushed = false; // Released outside of widget. Can happen when we have modal // input focus. if ((0 > mouseEvent.getY() || mouseEvent.getY() >= getHeight() || mouseEvent.getX() < 0 || mouseEvent.getX() >= getWidth()) && mouseEvent.getButton() == gcn::MouseEvent::LEFT) { if (mIsDragged) foldUp(); } else if (mouseEvent.getButton() == gcn::MouseEvent::LEFT) { mPushed = false; } mIsDragged = false; } void DropDown::mouseDragged(gcn::MouseEvent &mouseEvent) { mIsDragged = true; mouseEvent.consume(); } 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 = mPopup->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 = mPopup->getListModel(); if (!listModel) return ""; return listModel->getElementAt(getSelected()); } void DropDown::adjustHeight() { setHeight(getFont()->getHeight() + 2 * mPadding); } void DropDown::dropDown() { if (!mPopup) return; if (!mDroppedDown) { mDroppedDown = true; mFoldedUpHeight = getHeight(); adjustHeight(); // if (getParent()) // getParent()->moveToTop(this); int x = 0; int y = 0; getAbsolutePosition(x, y); const int frame = getParent()->getFrameSize(); const int pad = mPopup->getPadding(); const int pad2 = pad * 2; // here width should be adjusted on some other parameters mPopup->setWidth(getWidth() - pad2 + 8); mPopup->show(x - mPadding - frame - 1, y + getHeight()); mPopup->requestMoveToTop(); mPopup->requestFocus(); } } void DropDown::foldUp() { if (mDroppedDown) { mDroppedDown = false; adjustHeight(); } } int DropDown::getSelected() const { return mPopup->getSelected(); } void DropDown::setSelected(int selected) { if (selected >= 0) mPopup->setSelected(selected); } void DropDown::setListModel(gcn::ListModel *listModel) { mPopup->setListModel(listModel); if (mPopup->getSelected() < 0) mPopup->setSelected(0); adjustHeight(); } gcn::ListModel *DropDown::getListModel() { return mPopup->getListModel(); } void DropDown::action(const gcn::ActionEvent &actionEvent A_UNUSED) { foldUp(); distributeActionEvent(); } gcn::Rectangle DropDown::getChildrenArea() { if (mDroppedDown) { // Calculate the children area (with the one pixel border in mind) return gcn::Rectangle(1, mFoldedUpHeight + 1, getWidth() - 2, getHeight() - mFoldedUpHeight - 2); } return gcn::Rectangle(); } void DropDown::valueChanged(const gcn::SelectionEvent& event A_UNUSED) { } void DropDown::updateSelection() { mDroppedDown = false; mPushed = false; distributeActionEvent(); distributeValueChangedEvent(); } void DropDown::addSelectionListener(SelectionListener* selectionListener) { mSelectionListeners.push_back(selectionListener); } void DropDown::removeSelectionListener(SelectionListener* listener) { mSelectionListeners.remove(listener); } void DropDown::distributeValueChangedEvent() { for (SelectionListenerIterator iter = mSelectionListeners.begin(); iter != mSelectionListeners.end(); ++iter) { gcn::SelectionEvent event(this); (*iter)->valueChanged(event); } }