Qt 实现颜色下拉框

#include "colorcombobox.h" #define TABLEROW 7 #define TABLECOLUMN 4 colorcombobox::colorcombobox(QWidget *parent) :QComboBox(parent) { ColorId = 0; currentRow = 0; currentColumn = 0; currentColor = nullptr; showColor = new QLabel(this); showColor->setParent(this); showColor->setSizePolicy(QSizePolicy::Expanding,QSizePolicy::Expanding); tablewidget = new QTableWidget(TABLEROW,TABLECOLUMN); tablewidget->verticalHeader()->setVisible(false); tablewidget->horizontalHeader()->setVisible(false); tablewidget->setShowGrid(false); tablewidget->setSpan(0,0,1,TABLECOLUMN); tablewidget->setSpan(TABLEROW-3,0,1,TABLECOLUMN); tablewidget->setSpan(TABLEROW-2,0,1,TABLECOLUMN); RepaintList<<"red"; RepaintList<<"yellow"; RepaintList<<"green"; RepaintList<<"aliceblue"; RepaintList<<"antiquewhite"; RepaintList<<"aqua"; RepaintList<<"aquamarine"; RepaintList<<"azure"; RepaintList<<"beige"; RepaintList<<"bisque"; RepaintList<<"blue"; RepaintList<<"brown"; RepaintList<<"burlywood"; RepaintList<<"cadetblue"; RepaintList<<"coral"; RepaintList<<"cornsilk"; int k =0; for (int i =0;i<TABLEROW;i++) { if (i==TABLEROW-3) { other = new QPushButton(this); other->setText(tr("other color")); other->setObjectName("PushButton00"); tablewidget->setCellWidget(TABLEROW-3,0,other); } else if(i == TABLEROW-2) { labeltext = new QLabel(this); labeltext->setText(tr("Recently used colors")); tablewidget->setCellWidget(TABLEROW-2,0,labeltext); labeltext->setStyleSheet("background-color:white"); } else if(i == 0) { QLabel * labelshow = new QLabel; labelshow->setText(tr("Standard Color")); tablewidget->setCellWidget(0,0,labelshow); labelshow->setStyleSheet("background-color:white"); } else if(i == TABLEROW-1) { btn0 = new MyPushButton; btn1 = new MyPushButton; btn2 = new MyPushButton; btn3 = new MyPushButton; tablewidget->setCellWidget(i,0,btn0); tablewidget->setCellWidget(i,1,btn1); tablewidget->setCellWidget(i,2,btn2); tablewidget->setCellWidget(i,3,btn3); connect(btn0,SIGNAL(clicked(QString)),this,SLOT(change(QString))); connect(btn1,SIGNAL(clicked(QString)),this,SLOT(change(QString))); connect(btn2,SIGNAL(clicked(QString)),this,SLOT(change(QString))); connect(btn3,SIGNAL(clicked(QString)),this,SLOT(change(QString))); } else { for (int j=0;j<TABLECOLUMN;j++) { tablewidget->setColumnWidth(j,tablewidget->geometry().width()/TABLECOLUMN); MyPushButton * itemp = new MyPushButton; itemp->setObjectName("PushButton"+QString::number(i)+QString::number(j)); if(i<TABLEROW) itemp->setStyleSheet("background-color:"+RepaintList[k]); k++; tablewidget->setCellWidget(i,j,itemp); connect(itemp,SIGNAL(clicked(QString)),this,SLOT(change(QString))); } } } connect(other,SIGNAL(clicked()),this,SLOT(otherColor())); this->setModel(tablewidget->model()); this->setView(tablewidget); } colorcombobox::~colorcombobox(){ } void colorcombobox::change(QString colorname) { QPushButton * btn = (QPushButton *)sender(); currentRow = btn->objectName().mid(10,1).toInt(); currentColumn = btn->objectName().mid(11,1).toInt(); currentColor = QColor(colorname); //update btn's color in the last row //the next get the the last's color if(btn0->palette().color(QPalette::Background).name()!=colorname&& btn1->palette().color(QPalette::Background).name()!=colorname&& btn2->palette().color(QPalette::Background).name()!=colorname&& btn3->palette().color(QPalette::Background).name()!=colorname) { btn3->setStyleSheet("background-color:"+btn2->palette().color(QPalette::Background).name()); btn2->setStyleSheet("background-color:"+btn1->palette().color(QPalette::Background).name()); btn1->setStyleSheet("background-color:"+btn0->palette().color(QPalette::Background).name()); btn0->setStyleSheet("background-color:"+colorname); } qDebug()<<"color"<<btn->objectName()<<currentRow<<currentColumn<<currentColor.name(); showColor->setStyleSheet("QLabel{background-color:"+colorname+";}"); } void colorcombobox::otherColor() { qDebug()<<"othercolor"; QColor colorOrg = QColor(); QColor mycolor = QColorDialog::getColor(colorOrg,this); other->setStyleSheet("background-color:"+mycolor.name()); this->change(mycolor.name()); } void colorcombobox::sendColor() { } void colorcombobox::setCurrentIndex(int i) { //update current params if(i<RepaintList.size()) setCurrentColor(QColor(RepaintList[i])); } void colorcombobox::setCurrentColor(QColor color) { //update current params currentRow = 0; currentColumn = 0; currentColor = color; if(RepaintList.contains(color.name())) { currentRow = RepaintList.indexOf(color.name())/4; currentColumn = RepaintList.indexOf(color.name())%4; } else { other->setStyleSheet("background-color:"+color.name()); } showColor->setStyleSheet("QLabel{background-color:"+color.name()+";}"); btn0->setStyleSheet("background-color:"+color.name()); } void colorcombobox::resizeEvent(QResizeEvent *e) { QRect rect = this->geometry(); rect.setX(0); rect.setY(0); qDebug()<<rect.width()<<rect.height(); showColor->setGeometry(1,1,rect.width()-2,rect.height()-2); for (int var = 0; var < TABLECOLUMN; ++var) { tablewidget->setColumnWidth(var,(rect.width()-10)/(TABLECOLUMN)); } }