Sudoku QLineEdit focusInEvent
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Hey,
I am creating Sudoku game/solver and I am almost done, just couple things left to do - one of them is highlight row and column whenever tile(QLineEdit)
is selected. So I created a class with focusInEvent// focusInEvent header file #ifndef QLINEEDIT_CLICKABLE_H #define QLINEEDIT_CLICKABLE_H #include <QWidget> #include <Qt> #include <QLineEdit> #include <QVector> class QLineEdit_Clickable : public QLineEdit { Q_OBJECT public: explicit QLineEdit_Clickable(QWidget *parent = nullptr); protected: void focusInEvent(QFocusEvent *e); }; #endif // QLINEEDIT_CLICKABLE_H// focusInEvent source file #include "qlineedit_clickable.h" #include <QMouseEvent> #include <QMessageBox> QLineEdit_Clickable::QLineEdit_Clickable(QWidget *parent) : QLineEdit(parent){ } void QLineEdit_Clickable::focusInEvent(QFocusEvent *e) { QLineEdit::focusInEvent(e); }So my problem is that I don't know how to get my tile(QLineEdit) position, I need them because I need to know which row and column to highlight. Could someone help me how to get them?
Yeah I know that can I pass row and column to the constructor, and store it in member variables of QLineEdit_Clickable. But then I need to access my tiles (QVector < *QLineEdit>) in QLineEdit_Clickable, and I have no idea how to do that? -
Hi and welcome to the forums
Do you know its row/col when you create QLineEdit_Clickable ?
or who know it ?Who will highlight the place ?
Could you not store row/col in QLineEdit_Clickable and then emit signal (with col/row) to
some class else that does this highlighting ? -
So I will change my QLineEdit_Clickable constructor to this and I will know my tiles coordinates:
explicit QLineEdit_Clickable(QWidget *parent = nullptr, int y, int x);Who will highlight the place ?:
and my focusInEvent code would be:void QLineEdit_Clickable::focusInEvent(QFocusEvent *e) { QLineEdit::focusInEvent(e); for (int i = 0; i < 9; i++){ tiles[i][x].setStyleSheet(....); tiles[y][i].setStyleSheet(....); } }But this wont work , because i need to acces somehow tiles which are in my widget header / source file .
My widget source file:
SudokuWidget::SudokuWidget(QWidget * parent) : QWidget(parent) { mapper = new QSignalMapper( this ); QIntValidator *pValidator = new QIntValidator( this ); // user can input only 1 - 9 pValidator->setRange( 1, 9 ); // 1 - 9 // Sudoku big square QGridLayout *pMainLayout = new QGridLayout( this ); pMainLayout->setSpacing(0); pMainLayout->setAlignment(Qt::AlignCenter); // 3 x 3 array of smaller squares QVector< QGridLayout * > bigGrids; for ( int y = 0; y < 3; y++ ){ for ( int x = 0; x < 3; x++ ){ QGridLayout *pInnerGrid = new QGridLayout( this ); pInnerGrid->setAlignment(Qt::AlignHCenter); pInnerGrid->setSpacing(0); pInnerGrid->setMargin(0); pMainLayout->addLayout( pInnerGrid, y, x ); bigGrids.push_back( pInnerGrid ); } } tiles.resize(81); solve_data.resize(81); // adds tiles into smaller squares for (int y = 0; y < 9; y++){ for (int x = 0; x < 9; x++){ int bigGridIndex = box_position( y, x); QGridLayout *pInnerGrid = bigGrids[bigGridIndex]; // square coordinates in the box int grid_y = y % 3; int grid_x = x % 3; QLineEdit *tile = new QLineEdit_Clickable( this ); int rowColId = x + y * 10; mapper->setMapping( tile, rowColId ); connect( tile, SIGNAL( textEdited(QString) ), mapper, SLOT( map() ) ); // tile customization tile->setValidator(pValidator); // input 1 - 9 tile->setMaxLength(1); tile->setFixedSize(30,30); tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-style: solid; border-color: gray gray gray gray; }"); tile->setAlignment(Qt::AlignCenter); tile->setFrame(QFrame::Box); if (y == 0){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-top: 5px; border-style: solid; border-color: black gray gray gray; }"); } if (x == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-right: 5px; border-style: solid; border-color: gray black gray gray; }"); } if (y == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-style: solid; border-color: gray gray black gray; }"); } if (x == 0){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-left: 5px; border-style: solid; border-color: gray gray gray black; }"); } if (x == 0 && y == 0){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-top: 5px; border-left: 5px; border-style: solid; border-color: black gray gray black; }"); } if (x == 8 && y == 0){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-top: 5px; border-right: 5px; border-style: solid; border-color: black black gray gray; }"); } if (x == 8 && y == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-right: 5px; border-style: solid; border-color: gray black black black; }"); } if (x == 0 && y == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-left: 5px; border-style: solid; border-color: gray gray black black; }"); } if (x == 5 || x == 2){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-right: 5px; border-style: solid; border-color: gray black gray gray; }"); } if (y == 2 || y == 5){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-style: solid; border-color: gray gray black gray; }"); } if (x == 2 && y == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-right: 5px; border-style: solid; border-color: gray black black gray; }"); } if (x == 5 && y == 8){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-right: 5px; border-style: solid; border-color: gray black black gray; }"); } if ( ( x == 2 || x == 5 || x == 8 ) && y == 5){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-right: 5px; border-style: solid; border-color: gray black black gray; }"); } if ( ( x == 2 || x == 5 || x == 8 ) && y == 2){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-right: 5px; border-style: solid; border-color: gray black black gray; }"); } if (x == 0 && (y == 2 || y == 5)){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-bottom: 5px; border-left: 5px; border-style: solid; border-color: gray gray black black; }"); } if ( y == 0 && ( x == 2 || x == 5 ) ){ tile->setStyleSheet("QLineEdit{ border-width: 1.5px; border-top: 5px; border-right: 5px; border-style: solid; border-color: black black gray gray; }"); } pInnerGrid->addWidget( tile, grid_y, grid_x); // inedex of tile in tiles array int tileIndex = y * 9 + x; tiles [tileIndex] = tile; } } connect( mapper, SIGNAL( mapped( int ) ), this, SLOT( onMapped( int ) ) ); // Generate random digits with solvable solution ( 10 digs ) random_position(10, random_pos_value); for (int i = 0;i < 10; i++){ tiles[random_pos_value[i].first]->setText(QString::number(random_pos_value[i].second)); tiles[random_pos_value[i].first]->setReadOnly(true); } // solve button Solve = new QPushButton( "Solve", this); connect( Solve, SIGNAL(clicked()), this, SLOT(on_Solve_clicked()) ); pMainLayout->addWidget(Solve, 5, 0); // clear board button Solve = new QPushButton( "Generate", this); connect( Solve, SIGNAL(clicked()), this, SLOT(on_Reset_clicked()) ); pMainLayout->addWidget(Solve, 5, 1); // Finish Button Solve = new QPushButton( "Finish", this); connect( Solve, SIGNAL(clicked()), this, SLOT(on_Finish_clicked()) ); pMainLayout->addWidget(Solve, 5, 2); setLayout( pMainLayout ); } // ........... -
Hi
Could you not just add a new signal to QLineEdit_Clickablesignal:
void HilightMe(int x, int y);and in
void QLineEdit_Clickable::focusInEvent(QFocusEvent *e)
{
QLineEdit::focusInEvent(e);
emit HilightMe ( x,y ) // send the stored x,yand then in sudokoWidget have a slot
that uses this x,y to hilight the right one ?and then connect each QLineEdit_Clickable to this slot so it can emit the signal.
