QPalette QColor QComboBox 自定义调色板

一、效果图

二、代码

#ifndef PALETTEWIDGET_H
#define PALETTEWIDGET_H

#include <QWidget>

namespace Ui {
class paletteWidget;
}

class paletteWidget : public QWidget
{
    Q_OBJECT

public:
    explicit paletteWidget(QWidget *parent = nullptr);
    ~paletteWidget();

private:
    Ui::paletteWidget *ui;
};

#endif // PALETTEWIDGET_H

#include "palettewidget.h"
#include "ui_palettewidget.h"
#include <QPixmap>
#include <QColor>
#include <QPalette>
#include <QIcon>
#include <QDebug>
paletteWidget::paletteWidget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::paletteWidget)
{
    ui->setupUi(this);

    ui->frame->setAutoFillBackground(true);
    ui->pushButton->setAutoFillBackground(true);
    ui->pushButton_2->setAutoFillBackground(true);

    QStringList colors = QColor::colorNames();
    foreach(auto color,colors){
        QPixmap item(72,22);
        item.fill(QColor(color));

        ui->comboBox->addItem(QIcon(item),nullptr);
        ui->comboBox->setIconSize(QSize(72,22));
        ui->comboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
        connect(ui->comboBox, QOverload<int>::of(&QComboBox::activated),[=](int index){
            QString strColor = colors.at(index);
            QPalette p = ui->frame->palette();
            p.setColor(QPalette::Window,QColor(strColor));
            ui->frame->setPalette(p);
        });


        ui->comboBox_2->addItem(QIcon(item),nullptr);
        ui->comboBox_2->setIconSize(QSize(72,22));
        ui->comboBox_2->setSizeAdjustPolicy(QComboBox::AdjustToContents);
        connect(ui->comboBox_2, QOverload<int>::of(&QComboBox::activated),[=](int index){
            QString strColor = colors.at(index);
            QPalette p = ui->frame->palette();
            p.setColor(QPalette::WindowText,QColor(strColor));
            ui->frame->setPalette(p);
        });

        ui->comboBox_3->addItem(QIcon(item),nullptr);
        ui->comboBox_3->setIconSize(QSize(72,22));
        ui->comboBox_3->setSizeAdjustPolicy(QComboBox::AdjustToContents);
        connect(ui->comboBox_3, QOverload<int>::of(&QComboBox::activated),[=](int index){
            QString strColor = colors.at(index);
            QPalette p = ui->frame->palette();
            p.setColor(QPalette::Button,QColor(strColor));
            ui->pushButton->setPalette(p);
            ui->pushButton_2->setPalette(p);
        });

        ui->comboBox_4->addItem(QIcon(item),nullptr);
        ui->comboBox_4->setIconSize(QSize(72,22));
        ui->comboBox_4->setSizeAdjustPolicy(QComboBox::AdjustToContents);
        connect(ui->comboBox_4, QOverload<int>::of(&QComboBox::activated),[=](int index){
            QString strColor = colors.at(index);
            QPalette p = ui->frame->palette();
            p.setColor(QPalette::ButtonText,QColor(strColor));
            ui->pushButton->setPalette(p);
            ui->pushButton_2->setPalette(p);
        });

        ui->comboBox_5->addItem(QIcon(item),nullptr);
        ui->comboBox_5->setIconSize(QSize(72,22));
        ui->comboBox_5->setSizeAdjustPolicy(QComboBox::AdjustToContents);
        connect(ui->comboBox_5, QOverload<int>::of(&QComboBox::activated),[=](int index){
            QString strColor = colors.at(index);
            QPalette p = ui->frame->palette();
            p.setColor(QPalette::Base,QColor(strColor));
            ui->frame->setPalette(p);
        });
    }

    show();
}

paletteWidget::~paletteWidget()
{
    delete ui;
}

最后

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