43.qt通过qss自定义外观

样式:

文件格式类型:

 candy.qss

/* R1 */
QDialog {
    /*设置背景图片*/
    background-image: url(:/images/background.png);
    /*background-image: url(:/images/button.png);*/
}

/* 设置QLabel的color和font属性 */
QLabel {
    font: 9pt;
    color: rgb(0, 0, 127);
}

/* 设置对话框QLineEdit和QListView的外观 */
QComboBox:editable,
QLineEdit,
QListView {
    /*设置前景色(字体颜色)*/
    color:black;
    /*color:palette(Base);*/
    /*设置背景色*/
    background-color:rgba(97%,80%,9%,50%);
    /*设置背景色渐变*/
    /*background-color:qlineargradient(x1:0,y1:0,x2:1,y2:1,
                                    stop:0 white,stop:0.4 red,
                                    stop:1 green);*/
    /*设置背景图片*/
    /*background-image:url(:/imags/button.png);*/

    /*被选中后的颜色*/
    selection-color: write;
    /*选择后的背景颜色*/
    selection-background-color: rgb(191, 31, 127);
    /*灰色,2像素宽的凹槽边框*/
    border: 2px groove red;
    /*设置编辑框为圆角,半径为10*/
    border-radius: 10px;
    padding: 2px 4px;
}

/* ListView的填充 */
QListView {
    padding: 5px 4px;
}

/* R5 */
QComboBox:!editable,
QPushButton {
    /*按钮字体颜色*/
    color: black;
    /*字体大小*/
    font: bold 10pt;
    /*按钮图片(一个圆形) 大小为34*34  16表示
    切线在距离边界16像素的位置(有4条)*/
    border-image: url(:/images/button.png) 16 16 16 16;
    /*边界的宽度(最好和切线距离保持一致)*/
    border-width: 16px 16px;
    /*按钮文字预留填充空间 竖直像素减16 水平像素*/
    padding: -16px 0px;
    /*定义最小高度和最小宽度,保证有足够的空间留给角上的边界图*/
    min-height: 34px;
    min-width: 60px;
}

/* 鼠标停留在按钮上 */
QComboBox:!editable:hover,
QComboBox::drop-down:editable:hover,
QPushButton:hover {
    border-image: url(:/images/button-hover.png) 16;
}

/* 按钮按下 */
QComboBox:!editable:on,
QPushButton:pressed {
    /*前景色改为浅灰色*/
    color: lightgray;
    border-image: url(:/images/button-pressed.png) 16;
    /*把文字下移一个像素*/
    padding-top: -15px;
    padding-bottom: -17px;
}

/* 定义下拉按钮的规则 */
QComboBox::down-arrow {
    image: url(:/images/down-arrow.png);
}

/* 如果组合框是打开的,向下箭头将下移一个像素 */
QComboBox::down-arrow:on {
    top: 2px;
}

/* 单击组合框会显示一个项的列表 ,可以弹出任何一个*/
QComboBox * {
    font: 9pt;
}

/* 下拉箭头竖直居中,在只读组合框矩形的右侧 */
QComboBox::drop-down:!editable {
    subcontrol-origin: padding;
    subcontrol-position: center right;
    width: 11px;
    height: 6px;
    background: none;
}

/* 指定右侧15像素的填充区域,保证与显示不重合 */
QComboBox:!editable {
    padding-right: 15px;
}

/* 可编辑组合框下拉按钮*/
QComboBox::drop-down:editable {
    border-image: url(:/images/button.png) 16;
    border-width: 10px;
    subcontrol-origin: margin;
    subcontrol-position: center right;
    width: 7px;
    height: 6px;
}

/* R14 */
QComboBox::drop-down:editable:open {
    border-image: url(:/images/button-pressed.png) 16;
}

/* R15 */
QComboBox:editable {
    margin-right: 29px;
}

/*指定特别的按钮样式*/
/*QPushButton[text="OK"]
{
    color:green;
}*/

/*鼠标停留时颜色的变化*/
QPushButton:hover
{
    color:red;
}

/*设置复选框和单选框的大小
indicator:复选框,单选框,可选菜单项或可选群组框的指示器*/
QCheckBox::indicator,QRadioButton::indicator
{
    width:20px;
    height:20px;
}

/*设置选框和说明之间的距离*/
QCheckBox,QRadioButton
{
    spacing:8px;
}

/*鼠标停留在选框时的状态,以及选择后的状态*/
QCheckBox:hover,QCheckBox:checked
{
    color:red;
}

/*上右下左分别对应的填充空间*/
QLineEdit
{
    padding:0px 15px 0px 0px;
}

main.cpp

#include <QtGui>

#include "candydialog.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    //设置风格
    QApplication::setStyle(new QPlastiqueStyle);

    //打开qss文件
    QFile file(":/qss/candy.qss");
    //只读方式打开
    file.open(QFile::ReadOnly);
    //读取并设置风格
    app.setStyleSheet(file.readAll());

    //创建
    CandyDialog dialog;
    dialog.show();

    return app.exec();
}

candydialog.h

#ifndef CANDYDIALOG_H
#define CANDYDIALOG_H

#include <QDialog>

class QCheckBox;
class QComboBox;
class QDialogButtonBox;
class QLabel;
class QLineEdit;
class QListWidget;

class CandyDialog : public QDialog
{
    Q_OBJECT

public:
    CandyDialog(QWidget *parent = 0);

private:
    //姓名标签
    QLabel *nameLabel;
    //密码标签
    QLabel *passwordLabel;
    //country标签
    QLabel *countryLabel;
    //profession标签
    QLabel *professionLabel;
    //姓名下拉框
    QComboBox *nameComboBox;
    //密码框
    QLineEdit *passwordLineEdit;
    //国家下拉框
    QComboBox *countryComboBox;
    //列表框
    QListWidget *professionListWidget;
    //复选框
    QCheckBox *acceptCheckBox;
    //按钮集合
    QDialogButtonBox *buttonBox;
};

#endif

candydialog.cpp

#include <QtGui>

#include "candydialog.h"

CandyDialog::CandyDialog(QWidget *parent)
    : QDialog(parent)
{
    //姓名下拉框
    nameComboBox = new QComboBox;
    //可以编辑
    nameComboBox->setEditable(true);
    //下拉框添加元素
    nameComboBox->addItem("Albert Camus");
    nameComboBox->addItem("Dag Solstad");
    nameComboBox->addItem("Haruki Murakami");
    nameComboBox->addItem("Mark Haddon");

    //姓名标签
    nameLabel = new QLabel(tr("&Name:"));
    //设置标签和下拉框的绑定
    nameLabel->setBuddy(nameComboBox);

    //密码编辑框
    passwordLineEdit = new QLineEdit;
    //设置为密码输入方式
    passwordLineEdit->setEchoMode(QLineEdit::Password);
    //设置初始密码
    passwordLineEdit->setText("password1");

    //设置密码标签
    passwordLabel = new QLabel(tr("&Password:"));
    //密码标签和下拉框绑定
    passwordLabel->setBuddy(passwordLineEdit);

    //国家选择框
    countryComboBox = new QComboBox;
    //插入记录
    countryComboBox->addItem(tr("France"));
    countryComboBox->addItem(tr("Germany"));
    countryComboBox->addItem(tr("United States of America"));
    countryComboBox->addItem(tr("United Kingdom"));
    countryComboBox->addItem(tr("Other"));

    //创建标签
    countryLabel = new QLabel(tr("&Country:"));
    //绑定
    countryLabel->setBuddy(countryComboBox);

    //创建list
    professionListWidget = new QListWidget;
    //插入记录
    professionListWidget->addItem(tr("Ambassador"));
    professionListWidget->addItem(tr("Cab driver"));
    professionListWidget->addItem(tr("Psychologist"));
    professionListWidget->addItem(tr("Scientist"));
    professionListWidget->addItem(tr("Tax collector"));

    //创建label
    professionLabel = new QLabel(tr("P&rofession:"));
    //绑定
    professionLabel->setBuddy(professionListWidget);

    //创建选择框
    acceptCheckBox = new QCheckBox(tr("I accept the terms and "
                                      "conditions"));

    //创建按钮框
    buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok
                                     | QDialogButtonBox::Cancel);

    //创建槽函数
    connect(buttonBox, SIGNAL(accepted()), this, SLOT(accept()));
    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));

    //创建网格布局
    QGridLayout *mainLayout = new QGridLayout;
    mainLayout->addWidget(nameLabel, 0, 0);
    mainLayout->addWidget(nameComboBox, 0, 1);
    mainLayout->addWidget(passwordLabel, 1, 0);
    mainLayout->addWidget(passwordLineEdit, 1, 1);
    mainLayout->addWidget(countryLabel, 2, 0);
    mainLayout->addWidget(countryComboBox, 2, 1);
    mainLayout->addWidget(professionLabel, 3, 0);
    //第三行,第一列,占用三行,1列
    mainLayout->addWidget(professionListWidget, 3, 1, 3, 1);
    //占一行两列
    mainLayout->addWidget(acceptCheckBox, 6, 0, 1, 2);
    //占一行两列
    mainLayout->addWidget(buttonBox, 7, 0, 1, 2);
    //设置第三行最小高度
    mainLayout->setRowMinimumHeight(3, 0);
    //设置高的比例
    mainLayout->setRowStretch(4, 1);
    setLayout(mainLayout);


    setWindowTitle(tr("Candy"));
}