Qt5开发及实例 4.9.1QPalette类 代码问题修改

针对按钮，文本框，Frame背景不变色对代码进行了修改，核心在于

    OkBtn->setAutoFillBackground(true);
    OkBtn->setFlat(true);

 

.h文件

#ifndef PALETTE_H
#define PALETTE_H

#include 
#include 
#include 
#include 
#include 
#include 
class Palette : public QDialog
{
    Q_OBJECT

public:
    Palette(QWidget *parent = 0);
    ~Palette();
    void createCtrlFrame();			//完成窗体左半部分颜色选择区的创建
    void createContentFrame();		//完成窗体右半部分的创建
    void fillColorList(QComboBox *);
                                    //完成向颜色下拉列表框中插入颜色的工作
private slots:
    void ShowWindow();
    void ShowWindowText();
    void ShowButton();
    void ShowButtonText();
    void ShowBase();
private:
    QFrame *ctrlFrame;                  //颜色选择面板
    QLabel *windowLabel;
    QComboBox *windowComboBox;
    QLabel *windowTextLabel;
    QComboBox *windowTextComboBox;
    QLabel *buttonLabel;
    QComboBox *buttonComboBox;
    QLabel *buttonTextLabel;
    QComboBox *buttonTextComboBox;
    QLabel *baseLabel;
    QComboBox *baseComboBox;
    QFrame *contentFrame;              	//具体显示面板
    QLabel *label1;
    QComboBox *comboBox1;
    QLabel *label2;
    QLineEdit *lineEdit2;
    QTextEdit *textEdit;
    QPushButton *OkBtn;
    QPushButton *CancelBtn;
};

#endif // PALETTE_H

 

.cpp文件

#include "palette.h"
#include 
#include 
Palette::Palette(QWidget *parent)
    : QDialog(parent)
{
    createCtrlFrame();
    createContentFrame();
    QHBoxLayout *mainLayout =new QHBoxLayout(this);
    mainLayout->addWidget(ctrlFrame);
    mainLayout->addWidget(contentFrame);
}

void Palette::createCtrlFrame()
{
    ctrlFrame =new QFrame;                  //颜色选择面板
    windowLabel =new QLabel(tr("QPalette::Window: "));
    windowComboBox =new QComboBox;			//创建一个QComboBox对象
    fillColorList(windowComboBox);			//(a)
    connect(windowComboBox,SIGNAL(activated(int)),this,SLOT(ShowWindow()));//(b)
    windowTextLabel =new QLabel(tr("QPalette::WindowText: "));
    windowTextComboBox =new QComboBox;
    fillColorList(windowTextComboBox);
    connect(windowTextComboBox,SIGNAL(activated(int)),this,SLOT(ShowWindowText()));
    buttonLabel =new QLabel(tr("QPalette::Button: "));
    buttonComboBox =new QComboBox;
    fillColorList(buttonComboBox);
    connect(buttonComboBox,SIGNAL(activated(int)),this,SLOT(ShowButton()));
    buttonTextLabel =new QLabel(tr("QPalette::ButtonText: "));
    buttonTextComboBox =new QComboBox;
    fillColorList(buttonTextComboBox);
    connect(buttonTextComboBox,SIGNAL(activated(int)),this,SLOT(ShowButtonText()));
    baseLabel =new QLabel(tr("QPalette::Base: "));
    baseComboBox =new QComboBox;
    fillColorList(baseComboBox);
    connect(baseComboBox,SIGNAL(activated(int)),this,SLOT(ShowBase()));
    QGridLayout *mainLayout=new QGridLayout(ctrlFrame);
    mainLayout->setSpacing(20);
    mainLayout->addWidget(windowLabel,0,0);
    mainLayout->addWidget(windowComboBox,0,1);
    mainLayout->addWidget(windowTextLabel,1,0);
    mainLayout->addWidget(windowTextComboBox,1,1);
    mainLayout->addWidget(buttonLabel,2,0);
    mainLayout->addWidget(buttonComboBox,2,1);
    mainLayout->addWidget(buttonTextLabel,3,0);
    mainLayout->addWidget(buttonTextComboBox,3,1);
    mainLayout->addWidget(baseLabel,4,0);
    mainLayout->addWidget(baseComboBox,4,1);
}

void Palette::createContentFrame()
{
    contentFrame =new QFrame;                	//具体显示面板
    label1 =new QLabel(tr("请选择一个值："));
    comboBox1 =new QComboBox;
    label2 =new QLabel(tr("请输入字符串："));
    lineEdit2 =new QLineEdit;
    textEdit =new QTextEdit;
    QGridLayout *TopLayout =new QGridLayout;
    TopLayout->addWidget(label1,0,0);
    TopLayout->addWidget(comboBox1,0,1);
    TopLayout->addWidget(label2,1,0);
    TopLayout->addWidget(lineEdit2,1,1);
    TopLayout->addWidget(textEdit,2,0,1,2);
    OkBtn =new QPushButton(tr("确认"));
    CancelBtn =new QPushButton(tr("取消"));
    QHBoxLayout *BottomLayout =new QHBoxLayout;
    BottomLayout->addStretch(1);
    BottomLayout->addWidget(OkBtn);
    BottomLayout->addWidget(CancelBtn);
    QVBoxLayout *mainLayout =new QVBoxLayout(contentFrame);
    mainLayout->addLayout(TopLayout);
    mainLayout->addLayout(BottomLayout);
}

void Palette::ShowWindow()
{
    //获得当前选择的颜色值
    QStringList colorList = QColor::colorNames();
    QColor color = QColor(colorList[windowComboBox->currentIndex()]);
    QPalette p = contentFrame->palette();		//(a)
    p.setColor(QPalette::Window,color);			//(b)
    //把修改后的调色板信息应用到contentFrame窗体中，更新显示
    contentFrame->setAutoFillBackground(true);
    contentFrame->setPalette(p);
    contentFrame->update();
}

void Palette::ShowWindowText()
{
    QStringList colorList = QColor::colorNames();
    QColor color = colorList[windowTextComboBox->currentIndex()];
    QPalette p = contentFrame->palette();
    p.setColor(QPalette::WindowText,color);
    contentFrame->setPalette(p);
}

void Palette::ShowButton()
{
    QStringList colorList = QColor::colorNames();
    QColor color =QColor(colorList[buttonComboBox->currentIndex()]);
    QPalette p = contentFrame->palette();
    p.setColor(QPalette::Button,color);
    OkBtn->setAutoFillBackground(true);
    OkBtn->setFlat(true);
    CancelBtn->setAutoFillBackground(true);
    CancelBtn->setFlat(true);
    contentFrame->setPalette(p);
    contentFrame->update();
}

void Palette::ShowButtonText()
{
    QStringList colorList = QColor::colorNames();
    QColor color = QColor(colorList[buttonTextComboBox->currentIndex()]);
    QPalette p =contentFrame->palette();
    p.setColor(QPalette::ButtonText,color);
    contentFrame->setPalette(p);
}

void Palette::ShowBase()
{
    textEdit->setAutoFillBackground(true);
    QStringList colorList = QColor::colorNames();
    QColor color = QColor(colorList[baseComboBox->currentIndex()]);
    QPalette p = contentFrame->palette();
    p.setColor(QPalette::Base,color);
    contentFrame->setPalette(p);    
}

void Palette::fillColorList(QComboBox *comboBox)
{
    QStringList colorList = QColor::colorNames();	//(a)
    QString color;									//(b)
    foreach(color,colorList)						//对颜色名列表进行遍历
    {
        QPixmap pix(QSize(70,20));					//(c)
        pix.fill(QColor(color));                    //为pix填充当前遍历的颜色
        comboBox->addItem(QIcon(pix),NULL);         //(d)
        comboBox->setIconSize(QSize(70,20));		//(e)
        comboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
                                                    //(f)
    }
}

Palette::~Palette()
{

}