1 /*

     2  * Hedgewars, a free turn based strategy game

     3  * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>

     4  *

     5  * This program is free software; you can redistribute it and/or modify

     6  * it under the terms of the GNU General Public License as published by

     7  * the Free Software Foundation; version 2 of the License

     8  *

     9  * This program is distributed in the hope that it will be useful,

    10  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    12  * GNU General Public License for more details.

    13  *

    14  * You should have received a copy of the GNU General Public License

    15  * along with this program; if not, write to the Free Software

    16  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

    17  */

    18 

    19 #include "keybinder.h"

    20 #include "HWApplication.h"

    21 #include "DataManager.h"

    22 #include <QHBoxLayout>

    23 #include <QScrollArea>

    24 #include <QTableWidget>

    25 #include <QTableWidgetItem>

    26 #include <QStandardItemModel>

    27 #include <QAbstractItemModel>

    28 #include <QListWidget>

    29 #include <QListWidgetItem>

    30 #include <QPushButton>

    31 #include <QHeaderView>

    32 #include <QComboBox>

    33 #include <QLabel>

    34 #include <QFrame>

    35 #include <QDebug>

    36 

    37 KeyBinder::KeyBinder(QWidget * parent, const QString & helpText, const QString & defaultText, const QString & resetButtonText) : QWidget(parent)

    38 {

    39     this->defaultText = defaultText;

    40     enableSignal = false;

    41     

    42     // Two-column tab layout

    43     QHBoxLayout * pageKeysLayout = new QHBoxLayout(this);

    44     pageKeysLayout->setSpacing(0);

    45     pageKeysLayout->setContentsMargins(0, 0, 0, 0);

    46     

    47     // Table for category list

    48     QVBoxLayout * catListContainer = new QVBoxLayout();

    49     catListContainer->setContentsMargins(10, 10, 10, 10);

    50     catList = new QListWidget();

    51     catList->setFixedWidth(180);

    52     catList->setStyleSheet("QListWidget::item { font-size: 14px; } QListWidget:hover { border-color: #F6CB1C; } QListWidget::item:selected { background: #150A61; color: yellow; }");

    53     catList->setFocusPolicy(Qt::NoFocus);

    54     connect(catList, SIGNAL(currentRowChanged(int)), this, SLOT(changeBindingsPage(int)));

    55     catListContainer->addWidget(catList);

    56     pageKeysLayout->addLayout(catListContainer);

    57 

    58     // Reset all binds button

    59     if (!resetButtonText.isEmpty())

    60     {

    61         QPushButton * btnResetAll = new QPushButton(resetButtonText);

    62         catListContainer->addWidget(btnResetAll);

    63         btnResetAll->setFixedHeight(40);

    64         catListContainer->setStretch(1, 0);

    65         catListContainer->setSpacing(10);

    66         connect(btnResetAll, SIGNAL(clicked()), this, SIGNAL(resetAllBinds()));

    67     }

    68 

    69     // Container for pages of key bindings

    70     QWidget * bindingsPagesContainer = new QWidget();

    71     QVBoxLayout * rightLayout = new QVBoxLayout(bindingsPagesContainer);

    72 

    73     // Scroll area for key bindings

    74     QScrollArea * scrollArea = new QScrollArea();

    75     scrollArea->setContentsMargins(0, 0, 0, 0);

    76     scrollArea->setWidget(bindingsPagesContainer);

    77     scrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);

    78     scrollArea->setWidgetResizable(true);

    79     scrollArea->setFrameShape(QFrame::NoFrame);

    80     scrollArea->setStyleSheet("background: #130F2A;");

    81 

    82     // Add key binding pages to bindings tab

    83     pageKeysLayout->addWidget(scrollArea);

    84     pageKeysLayout->setStretch(1, 1);

    85 

    86     // Custom help text

    87     QLabel * helpLabel = new QLabel();

    88     helpLabel->setText(helpText);

    89     helpLabel->setStyleSheet("color: #130F2A; background: #F6CB1C; border: solid 4px #F6CB1C; border-radius: 10px; padding: auto 20px;");

    90     helpLabel->setFixedHeight(24);

    91     rightLayout->addWidget(helpLabel, 0, Qt::AlignCenter);

    92 

    93     // Category list and bind table row heights

    94     const int rowHeight = 20;

    95     QSize catSize, headerSize;

    96     catSize.setHeight(36);

    97     headerSize.setHeight(24);

    98 

    99     // Category list header

   100     QListWidgetItem * catListHeader = new QListWidgetItem(tr("Category"));

   101     catListHeader->setSizeHint(headerSize);

   102     catListHeader->setFlags(Qt::NoItemFlags);

   103     catListHeader->setForeground(QBrush(QColor("#130F2A")));

   104     catListHeader->setBackground(QBrush(QColor("#F6CB1C")));

   105     catListHeader->setTextAlignment(Qt::AlignCenter);

   106     catList->addItem(catListHeader);

   107 

   108     // Populate

   109     bindingsPages = new QHBoxLayout();

   110     bindingsPages->setContentsMargins(0, 0, 0, 0);

   111     rightLayout->addLayout(bindingsPages);

   112     QWidget * curPage = NULL;

   113     QVBoxLayout * curLayout = NULL;

   114     QTableWidget * curTable = NULL;

   115     bool bFirstPage = true;

   116     selectedBindTable = NULL;

   117     bindComboBoxCellMappings = new QHash<QObject *, QTableWidgetItem *>();

   118     bindCellComboBoxMappings = new QHash<QTableWidgetItem *, QComboBox *>();

   119     for (int i = 0; i < BINDS_NUMBER; i++)

   120     {

   121         if (cbinds[i].category != NULL)

   122         {

   123             // Add stretch at end of previous layout

   124             if (curLayout != NULL) curLayout->insertStretch(-1, 1);

   125             

   126             // Category list item

   127             QListWidgetItem * catItem = new QListWidgetItem(HWApplication::translate("binds (categories)", cbinds[i].category));

   128             catItem->setSizeHint(catSize);

   129             catList->addItem(catItem);

   130             

   131             // Create new page

   132             curPage = new QWidget();

   133             curLayout = new QVBoxLayout(curPage);

   134             curLayout->setSpacing(2);

   135             bindingsPages->addWidget(curPage);

   136             if (!bFirstPage) curPage->setVisible(false);

   137         }

   138 

   139         // Description

   140         if (cbinds[i].description != NULL)

   141         {

   142             QLabel * desc = new QLabel(HWApplication::translate("binds (descriptions)", cbinds[i].description));

   143             curLayout->addWidget(desc, 0);

   144             QFrame * divider = new QFrame();

   145             divider->setFrameShape(QFrame::HLine);

   146             divider->setFrameShadow(QFrame::Plain);

   147             curLayout->addWidget(divider, 0);

   148         }

   149 

   150         // New table

   151         if (cbinds[i].category != NULL || cbinds[i].description != NULL)

   152         {

   153             curTable = new QTableWidget(0, 2);

   154             curTable->verticalHeader()->setVisible(false);

   155             curTable->horizontalHeader()->setVisible(false);

   156             curTable->horizontalHeader()->setResizeMode(QHeaderView::Stretch);

   157             curTable->verticalHeader()->setDefaultSectionSize(rowHeight);

   158             curTable->setShowGrid(false);

   159             curTable->setStyleSheet("QTableWidget { border: none; } ");

   160             curTable->setSelectionBehavior(QAbstractItemView::SelectRows);

   161             curTable->setSelectionMode(QAbstractItemView::SingleSelection);

   162             curTable->setFocusPolicy(Qt::NoFocus);

   163             connect(curTable, SIGNAL(itemSelectionChanged()), this, SLOT(bindSelectionChanged()));

   164             connect(curTable, SIGNAL(itemClicked(QTableWidgetItem *)), this, SLOT(bindCellClicked(QTableWidgetItem *)));

   165             curLayout->addWidget(curTable, 0);

   166         }

   167 

   168         // Hidden combo box

   169         QComboBox * comboBox = CBBind[i] = new QComboBox(curTable);

   170         comboBox->setModel((QAbstractItemModel*)DataManager::instance().bindsModel());

   171         comboBox->setVisible(false);

   172         comboBox->setFixedWidth(200);

   173         

   174         // Table row

   175         int row = curTable->rowCount();

   176         QTableWidgetItem * nameCell = new QTableWidgetItem(HWApplication::translate("binds", cbinds[i].name));

   177         nameCell->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

   178         curTable->insertRow(row);

   179         curTable->setItem(row, 0, nameCell);

   180         QTableWidgetItem * bindCell = new QTableWidgetItem(comboBox->currentText());

   181         bindCell->setFlags(Qt::ItemIsSelectable | Qt::ItemIsEnabled);

   182         curTable->setItem(row, 1, bindCell);

   183         curTable->resizeColumnsToContents();

   184         curTable->setFixedHeight(curTable->verticalHeader()->length() + 10);

   185 

   186         // Updates the text in the table cell

   187         connect(comboBox, SIGNAL(currentIndexChanged(const QString &)), this, SLOT(bindChanged(const QString &)));

   188 

   189         // Map combo box and that row's cells to each other

   190         bindComboBoxCellMappings->insert(comboBox, bindCell);

   191         bindCellComboBoxMappings->insert(nameCell, comboBox);

   192         bindCellComboBoxMappings->insert(bindCell, comboBox);

   193     }

   194 

   195     // Add stretch at end of last layout

   196     if (curLayout != NULL) curLayout->insertStretch(-1, 1);

   197 

   198     // Go to first page

   199     catList->setCurrentItem(catList->item(1));

   200 

   201     enableSignal = true;

   202 }

   203 

   204 KeyBinder::~KeyBinder()

   205 {

   206     delete bindComboBoxCellMappings;

   207     delete bindCellComboBoxMappings;

   208 }

   209 

   210 // Switches between different pages of key binds

   211 void KeyBinder::changeBindingsPage(int page)

   212 {

   213     page--; // Disregard first item (the list header)

   214     int pages = bindingsPages->count();

   215     for (int i = 0; i < pages; i++)

   216         bindingsPages->itemAt(i)->widget()->setVisible(false);

   217     bindingsPages->itemAt(page)->widget()->setVisible(true);

   218 }

   219 

   220 // When a key bind combobox value is changed, updates the table cell text

   221 void KeyBinder::bindChanged(const QString & text)

   222 {

   223     bindComboBoxCellMappings->value(sender())->setText(text);

   224 

   225     if (enableSignal)

   226     {

   227         for (int i = 0; i < BINDS_NUMBER; i++)

   228         {

   229             if (CBBind[i] == sender())

   230             {

   231                 emit bindUpdate(i);

   232                 break;

   233             }

   234         }

   235     }

   236 }

   237 

   238 // When a row in a key bind table is clicked, this shows the popup

   239 void KeyBinder::bindCellClicked(QTableWidgetItem * item)

   240 {

   241     QComboBox * box = bindCellComboBoxMappings->value(item);

   242     QTableWidget * table = item->tableWidget();

   243     QFrame * frame = box->findChild<QFrame*>();

   244     

   245     box->showPopup();

   246     frame->move(

   247         frame->x() + table->horizontalHeader()->sectionSize(0),

   248         frame->y() + (table->verticalHeader()->defaultSectionSize() * item->row())

   249     );

   250 }

   251 

   252 // When a new row in a bind table is *selected*, this clears selection in any other table

   253 void KeyBinder::bindSelectionChanged()

   254 {

   255     QTableWidget * theSender = (QTableWidget*)sender();

   256     if (theSender != selectedBindTable)

   257     {

   258         if (selectedBindTable != NULL)

   259             selectedBindTable->clearSelection();

   260         selectedBindTable = theSender;

   261     }

   262 }

   263 

   264 // Set a combobox's index

   265 void KeyBinder::setBindIndex(int keyIndex, int bindIndex)

   266 {

   267     enableSignal = false;

   268     CBBind[keyIndex]->setCurrentIndex(bindIndex);

   269     enableSignal = true;

   270 }

   271 

   272 // Return a combobox's selected index

   273 int KeyBinder::bindIndex(int keyIndex)

   274 {

   275     return CBBind[keyIndex]->currentIndex();

   276 }

   277 

   278 // Clears selection and goes to first category

   279 void KeyBinder::resetInterface()

   280 {

   281     enableSignal = false;

   282     

   283     catList->setCurrentItem(catList->item(1));

   284     changeBindingsPage(1);

   285     if (selectedBindTable != NULL)

   286     {

   287         selectedBindTable->clearSelection();

   288         selectedBindTable = NULL;

   289     }

   290     

   291     // Default bind text

   292     DataManager::instance().bindsModel()->item(0)->setData(defaultText, Qt::DisplayRole);

   293     for (int i = 0; i < BINDS_NUMBER; i++)

   294     {

   295         CBBind[i]->setModel(DataManager::instance().bindsModel());

   296         CBBind[i]->setCurrentIndex(0);

   297         bindComboBoxCellMappings->value(CBBind[i])->setText(defaultText);

   298     }

   299 

   300     enableSignal = true;

   301 }