QTfrontend/ui/widget/keybinder.cpp
author unc0rr
Wed, 01 Jan 2014 23:28:24 +0400
changeset 9904 ef3321c86912
parent 9080 9b42757d7e71
child 9998 736015b847e3
permissions -rw-r--r--
Prepend '!' to 42nd scheme parameter in network traffic
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/*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2013 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 */
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#include "keybinder.h"
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#include "HWApplication.h"
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#include "DataManager.h"
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#include <QHBoxLayout>
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#include <QScrollArea>
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#include <QTableWidget>
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#include <QTableWidgetItem>
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#include <QStandardItemModel>
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#include <QAbstractItemModel>
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#include <QListWidget>
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#include <QListWidgetItem>
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#include <QPushButton>
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#include <QHeaderView>
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#include <QComboBox>
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#include <QLabel>
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#include <QFrame>
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#include <QDebug>
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KeyBinder::KeyBinder(QWidget * parent, const QString & helpText, const QString & defaultText, const QString & resetButtonText) : QWidget(parent)
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{
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    this->defaultText = defaultText;
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    enableSignal = false;
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    // Two-column tab layout
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    QHBoxLayout * pageKeysLayout = new QHBoxLayout(this);
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    pageKeysLayout->setSpacing(0);
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    pageKeysLayout->setContentsMargins(0, 0, 0, 0);
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    // Table for category list
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    QVBoxLayout * catListContainer = new QVBoxLayout();
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    catListContainer->setContentsMargins(10, 10, 10, 10);
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    catList = new QListWidget();
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    catList->setFixedWidth(180);
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    catList->setStyleSheet("QListWidget::item { font-size: 14px; } QListWidget:hover { border-color: #F6CB1C; } QListWidget::item:selected { background: #150A61; color: yellow; }");
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    catList->setFocusPolicy(Qt::NoFocus);
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    connect(catList, SIGNAL(currentRowChanged(int)), this, SLOT(changeBindingsPage(int)));
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    catListContainer->addWidget(catList);
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    pageKeysLayout->addLayout(catListContainer);
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    // Reset all binds button
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    if (!resetButtonText.isEmpty())
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    {
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        QPushButton * btnResetAll = new QPushButton(resetButtonText);
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        catListContainer->addWidget(btnResetAll);
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        btnResetAll->setFixedHeight(40);
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        catListContainer->setStretch(1, 0);
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        catListContainer->setSpacing(10);
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        connect(btnResetAll, SIGNAL(clicked()), this, SIGNAL(resetAllBinds()));
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    }
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    // Container for pages of key bindings
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    QWidget * bindingsPagesContainer = new QWidget();
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    QVBoxLayout * rightLayout = new QVBoxLayout(bindingsPagesContainer);
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    // Scroll area for key bindings
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    QScrollArea * scrollArea = new QScrollArea();
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    scrollArea->setContentsMargins(0, 0, 0, 0);
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    scrollArea->setWidget(bindingsPagesContainer);
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    scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
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    scrollArea->setWidgetResizable(true);
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    scrollArea->setFrameShape(QFrame::NoFrame);
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    scrollArea->setStyleSheet("background: #130F2A;");
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    // Add key binding pages to bindings tab
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    pageKeysLayout->addWidget(scrollArea);
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    pageKeysLayout->setStretch(1, 1);
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    // Custom help text
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    QLabel * helpLabel = new QLabel();
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    helpLabel->setText(helpText);
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    helpLabel->setStyleSheet("color: #130F2A; background: #F6CB1C; border: solid 4px #F6CB1C; border-radius: 10px; padding: auto 20px;");
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    helpLabel->setFixedHeight(24);
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    rightLayout->addWidget(helpLabel, 0, Qt::AlignCenter);
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    // Category list and bind table row heights
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    const int rowHeight = 20;
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    QSize catSize, headerSize;
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    catSize.setHeight(36);
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    headerSize.setHeight(24);
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    // Category list header
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    QListWidgetItem * catListHeader = new QListWidgetItem(tr("Category"));
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    catListHeader->setSizeHint(headerSize);
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    catListHeader->setFlags(Qt::NoItemFlags);
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    catListHeader->setForeground(QBrush(QColor("#130F2A")));
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    catListHeader->setBackground(QBrush(QColor("#F6CB1C")));
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    catListHeader->setTextAlignment(Qt::AlignCenter);
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    catList->addItem(catListHeader);
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    // Populate
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    bindingsPages = new QHBoxLayout();
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    bindingsPages->setContentsMargins(0, 0, 0, 0);
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    rightLayout->addLayout(bindingsPages);
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    QWidget * curPage = NULL;
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    QVBoxLayout * curLayout = NULL;
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    QTableWidget * curTable = NULL;
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    bool bFirstPage = true;
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    selectedBindTable = NULL;
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    bindComboBoxCellMappings = new QHash<QObject *, QTableWidgetItem *>();
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    bindCellComboBoxMappings = new QHash<QTableWidgetItem *, QComboBox *>();
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    for (int i = 0; i < BINDS_NUMBER; i++)
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    {
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        if (cbinds[i].category != NULL)
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        {
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            // Add stretch at end of previous layout
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            if (curLayout != NULL) curLayout->insertStretch(-1, 1);
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            // Category list item
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            QListWidgetItem * catItem = new QListWidgetItem(HWApplication::translate("binds (categories)", cbinds[i].category));
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            catItem->setSizeHint(catSize);
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            catList->addItem(catItem);
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            // Create new page
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            curPage = new QWidget();
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            curLayout = new QVBoxLayout(curPage);
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            curLayout->setSpacing(2);
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            bindingsPages->addWidget(curPage);
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            if (!bFirstPage) curPage->setVisible(false);
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        }
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        // Description
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        if (cbinds[i].description != NULL)
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        {
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            QLabel * desc = new QLabel(HWApplication::translate("binds (descriptions)", cbinds[i].description));
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            curLayout->addWidget(desc, 0);
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            QFrame * divider = new QFrame();
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            divider->setFrameShape(QFrame::HLine);
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            divider->setFrameShadow(QFrame::Plain);
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            curLayout->addWidget(divider, 0);
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        }
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        // New table
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        if (cbinds[i].category != NULL || cbinds[i].description != NULL)
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        {
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            curTable = new QTableWidget(0, 2);
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            curTable->verticalHeader()->setVisible(false);
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            curTable->horizontalHeader()->setVisible(false);
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            curTable->horizontalHeader()->setResizeMode(QHeaderView::Stretch);
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            curTable->verticalHeader()->setDefaultSectionSize(rowHeight);
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            curTable->setShowGrid(false);
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            curTable->setStyleSheet("QTableWidget { border: none; } ");
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            curTable->setSelectionBehavior(QAbstractItemView::SelectRows);
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            curTable->setSelectionMode(QAbstractItemView::SingleSelection);
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            curTable->setFocusPolicy(Qt::NoFocus);
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            connect(curTable, SIGNAL(itemSelectionChanged()), this, SLOT(bindSelectionChanged()));
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            connect(curTable, SIGNAL(itemClicked(QTableWidgetItem *)), this, SLOT(bindCellClicked(QTableWidgetItem *)));
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            curLayout->addWidget(curTable, 0);
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        }
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        // Hidden combo box
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        QComboBox * comboBox = CBBind[i] = new QComboBox(curTable);
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        comboBox->setModel((QAbstractItemModel*)DataManager::instance().bindsModel());
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        comboBox->setVisible(false);
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        comboBox->setFixedWidth(200);
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        // Table row
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        int row = curTable->rowCount();
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        QTableWidgetItem * nameCell = new QTableWidgetItem(HWApplication::translate("binds", cbinds[i].name));
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        nameCell->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
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        curTable->insertRow(row);
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        curTable->setItem(row, 0, nameCell);
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        QTableWidgetItem * bindCell = new QTableWidgetItem(comboBox->currentText());
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        bindCell->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);
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        curTable->setItem(row, 1, bindCell);
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        curTable->resizeColumnsToContents();
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        curTable->setFixedHeight(curTable->verticalHeader()->length() + 10);
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        // Updates the text in the table cell
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        connect(comboBox, SIGNAL(currentIndexChanged(const QString &)), this, SLOT(bindChanged(const QString &)));
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        // Map combo box and that row's cells to each other
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        bindComboBoxCellMappings->insert(comboBox, bindCell);
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        bindCellComboBoxMappings->insert(nameCell, comboBox);
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        bindCellComboBoxMappings->insert(bindCell, comboBox);
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    }
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    // Add stretch at end of last layout
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    if (curLayout != NULL) curLayout->insertStretch(-1, 1);
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    // Go to first page
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    catList->setCurrentItem(catList->item(1));
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    enableSignal = true;
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}
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KeyBinder::~KeyBinder()
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{
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    delete bindComboBoxCellMappings;
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    delete bindCellComboBoxMappings;
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}
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// Switches between different pages of key binds
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void KeyBinder::changeBindingsPage(int page)
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{
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    page--; // Disregard first item (the list header)
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    int pages = bindingsPages->count();
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    for (int i = 0; i < pages; i++)
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        bindingsPages->itemAt(i)->widget()->setVisible(false);
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    bindingsPages->itemAt(page)->widget()->setVisible(true);
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}
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// When a key bind combobox value is changed, updates the table cell text
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void KeyBinder::bindChanged(const QString & text)
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{
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    bindComboBoxCellMappings->value(sender())->setText(text);
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    if (enableSignal)
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    {
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        for (int i = 0; i < BINDS_NUMBER; i++)
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        {
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            if (CBBind[i] == sender())
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            {
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                emit bindUpdate(i);
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                break;
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            }
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        }
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    }
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}
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// When a row in a key bind table is clicked, this shows the popup
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void KeyBinder::bindCellClicked(QTableWidgetItem * item)
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{
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    QComboBox * box = bindCellComboBoxMappings->value(item);
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    QTableWidget * table = item->tableWidget();
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    QFrame * frame = box->findChild<QFrame*>();
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    box->showPopup();
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    frame->move(
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        frame->x() + table->horizontalHeader()->sectionSize(0),
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        frame->y() + (table->verticalHeader()->defaultSectionSize() * item->row())
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    );
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}
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// When a new row in a bind table is *selected*, this clears selection in any other table
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void KeyBinder::bindSelectionChanged()
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{
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    QTableWidget * theSender = (QTableWidget*)sender();
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    if (theSender != selectedBindTable)
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    {
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        if (selectedBindTable != NULL)
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            selectedBindTable->clearSelection();
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        selectedBindTable = theSender;
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    }
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}
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// Set a combobox's index
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void KeyBinder::setBindIndex(int keyIndex, int bindIndex)
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{
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    enableSignal = false;
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    CBBind[keyIndex]->setCurrentIndex(bindIndex);
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    enableSignal = true;
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}
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// Return a combobox's selected index
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int KeyBinder::bindIndex(int keyIndex)
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{
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    return CBBind[keyIndex]->currentIndex();
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}
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// Clears selection and goes to first category
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void KeyBinder::resetInterface()
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{
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    enableSignal = false;
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    catList->setCurrentItem(catList->item(1));
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    changeBindingsPage(1);
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    if (selectedBindTable != NULL)
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    {
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        selectedBindTable->clearSelection();
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        selectedBindTable = NULL;
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    }
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    // Default bind text
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    DataManager::instance().bindsModel()->item(0)->setData(defaultText, Qt::DisplayRole);
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    for (int i = 0; i < BINDS_NUMBER; i++)
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    {
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        CBBind[i]->setModel(DataManager::instance().bindsModel());
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        CBBind[i]->setCurrentIndex(0);
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        bindComboBoxCellMappings->value(CBBind[i])->setText(defaultText);
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    }
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    enableSignal = true;
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}