本篇内容介绍了“Qt界面美化之怎么自定义qss样式表”的有关知识,在实际案例的操作过程中,不少人都会遇到这样的困境,接下来就让小编带领大家学习一下如何处理这些情况吧!希望大家仔细阅读,能够学有所成!
一、新建qrc文件,添加和保存资源文件
首先新建个qrc资源文件,使用Qtcreater的话可以直接在菜单中找新建->资源文件(qrc)。当然这个文件也可以手工创建。文件内容如下image.qrc:
<RCC>
<qresource prefix="/">
<file>qss/gray.css</file>
<file>image/shutdownicon.png</file>
<file>image/shutdownlogo.png</file>
<file>image/shutdownpushbutton.png</file>
<file>image/shutdownpushbuttonpress.png</file>
<file>image/spinner.png</file>
<file>image/tips.png</file>
<file>image/calendar.png</file>
</qresource>
</RCC>
在根目录里创建一个qss文件夹,里面创建全局样式表css文件。(建议这么搞,样式都统一放到样式表文件里,方便后续修改。不建议直接在界面上使用QtDesigner去改样式。)
二、新建css样式表文件
style.css样式文件内容如下:
QPalette{background:#e5e5e5;}
QLabel,
QLineEdit,
QTextEdit,
QPlainTextEdit,
QGroupBox,
QComboBox,
QDateEdit,
QTimeEdit,
QDateTimeEdit,
QTreeView,
QListView,
QTableView,
QLineEdit,
QTextEdit,
QPlainTextEdit {
}
QLabel#image1{
/*background-image: url(:/image/shutdownlogo.png);*/
}
QLabel#text1{
color: #004695;
font: 75 18pt "微软雅黑";
}
QLineEdit[echoMode="2"] {
lineedit-password-character: 9679;
}
.QGroupBox {
border: 1px solid #A9A9A9;
border-radius: 5px;
}
.QPushButton {
border-style: none;
border: 1px solid #A9A9A9;
color: #FFFFFF;
padding: 5px;
/* min-height: 20px; */
/* min-width: 30px; */
border-radius: 40px;
background: rgb(46,118,199);
}
.QPushButton:hover {
background: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 rgb(46,118,199), stop:1 #C1C1C1);
}
.QPushButton:pressed {
background: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 #004695, stop:1 #004695);
}
.QPushButton:disabled {
color: #838383;
background: #F4F4F4;
}
.QPushButton#btnShutDown {
background-image: url(:/image/shutdownicon.png);
background-position: left;
background-repeat: no-repeat;
background-origin:content;
padding-left:90px;
text-align: right;
padding-right:120px;
font: 25 20pt "Microsoft YaHei";
}
.QPushButton#btnShutDown:pressed {
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 #004695, stop:1 #004695);
}
QCheckBox {
color: #000000;
spacing: 2px;
}
QCheckBox::indicator {
width: 20px;
height: 20px;
}
QRadioButton {
color: #000000;
spacing: 2px;
}
QComboBox {
/* border-style: none; */
/* border: 1px solid #A9A9A9; */
border-radius: 5px;
}
QSpinBox {
border-radius: 5px;
}
style.css文件内容解释,有点css基础的应该很容易看懂。最前面的一系列是统一设置控件的样式。
QLabel#image1{
/*background-image: url(:/image/shutdownlogo.png);*/
}
QLabel#text1{
color: #004695;
font: 75 18pt "微软雅黑";
}
这里的#后面跟的内容,就是你界面里指定的控件对象名称,如image1,text1等。
.QPushButton#btnShutDown:pressed {
background-color: qlineargradient(spread:pad, x1:0, y1:0, x2:0, y2:1, stop:0 #004695, stop:1 #004695);
}
以上的:pressed设置按钮按下时的样式,hover是鼠标悬停上面的样式。
设置按钮的背景图片,关键属性:
1、background-position ----- 设置图标的位置
2、text-align-------------设置文本的位置
3、background-origin-------------相对于内容框来定位背景图像
如何使用
在mainWindow窗口实例化的地方,全局加载即可。
//设置指定样式
static void setStyle(const QString &qssFile) {
QFile file(qssFile);
if (file.open(QFile::ReadOnly)) {
QString qss = QLatin1String(file.readAll());
qApp->setStyleSheet(qss);
QString PaletteColor = qss.mid(20, 7);
qApp->setPalette(QPalette(QColor(PaletteColor)));
file.close();
}
}
MainWindow::MainWindow(QWidget *parent) :
QWidget(parent), ui(new Ui::MainWindow) {
ui->setupUi(this);
setFixedSize(1280, 1024);
//setWindowFlags(Qt::Window | Qt::FramelessWindowHint);
myHelper::setStyle(":/qss/style.css");
}
整理了一个全局的辅助类,方便使用。
#ifndef MYHELPER_H
#define MYHELPER_H
#include <QtCore>
#include <QtGui>
#if (QT_VERSION > QT_VERSION_CHECK(5, 0, 0))
#include <QtWidgets>
#endif
class myHelper : public QObject {
public:
static void autoRunWithSystem(bool ifAutoRun, QString appName, QString appPath) {
QSettings *reg = new QSettings(
"HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun", QSettings::NativeFormat);
if (ifAutoRun) {
reg->setValue(appName, appPath);
} else {
reg->setValue(appName, "");
}
}
//设置编码为UTF8
static void setTextCode(const QString sForName = "UTF-8") {
#if (QT_VERSION <= QT_VERSION_CHECK(5, 0, 0))
QTextCodec *codec = QTextCodec::codecForName(sForName);
QTextCodec::setCodecForLocale(codec);
QTextCodec::setCodecForCStrings(codec);
QTextCodec::setCodecForTr(codec);
#endif
}
//设置指定样式
static void setStyle(const QString &qssFile) {
QFile file(qssFile);
if (file.open(QFile::ReadOnly)) {
QString qss = QLatin1String(file.readAll());
qApp->setStyleSheet(qss);
QString PaletteColor = qss.mid(20, 7);
qApp->setPalette(QPalette(QColor(PaletteColor)));
file.close();
}
}
//加载中文字符
static void setChinese() {
QTranslator *translator = new QTranslator(qApp);
translator->load(":/image/qt_zh_CN.qm");
qApp->installTranslator(translator);
}
//判断是否是IP地址
static bool isIP(const QString sIP) {
QRegExp RegExp("((2[0-4]d|25[0-5]|[01]?dd?).){3}(2[0-4]d|25[0-5]|[01]?dd?)");
return RegExp.exactMatch(sIP);
}
//延时
static void sleep(int sec) {
QTime dieTime = QTime::currentTime().addMSecs(sec);
while (QTime::currentTime() < dieTime) {
QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}
}
//延时
static int sleep1(int command, int sec, int *state) {
int ret = 0;
QTime dieTime = QTime::currentTime().addMSecs(sec);
while (QTime::currentTime() < dieTime) {
if (((0xC7 != command && 0xC1 != command) && (*state == 2)) ||
((0xC7 == command || 0xC1 == command) && (*state == 3))) {
return 1;
}
QCoreApplication::processEvents(QEventLoop::AllEvents, 100);
}
ret = 2;
return ret;
}
//窗体居中显示
static void moveFormToCenter(QWidget *frm) {
int frmX = frm->width();
int frmY = frm->height();
QDesktopWidget dwt;
int deskWidth = dwt.availableGeometry().width();
int deskHeight = dwt.availableGeometry().height();
QPoint movePoint(deskWidth / 2 - frmX / 2, deskHeight / 2 - frmY / 2);
frm->move(movePoint);
}
};
#endif // MYHELPER_H
CMakeLists文件
由于习惯了使用cmake,以下附上cmake的QT工程配置,CMakeList.txt文件。
cmake_minimum_required(VERSION 3.21)
project(myapp)
set(CMAKE_PREFIX_PATH "D:/Qt/Qtxx/xx.xx/msvc20xx/lib/cmake")
add_definitions(
-D_ENABLE_LOGGING
)
##设置输出目录
set(BUILD_DIRECTORY "")
set(BUILD_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../build)
#################### QT dependencies ########################
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_AUTOMOC ON)
set(CMAKE_AUTORCC ON)
set(CMAKE_AUTOUIC ON)
set(QT_VERSION 5)
set(REQUIRED_LIBS Core Gui Network Widgets)
set(REQUIRED_LIBS_QUALIFIED Qt5::Core Qt5::Gui Qt5::Network Qt5::Widgets)
#################### set output directory ####################
set(BUILD_DIR ${BUILD_DIRECTORY})
set(LIB_DIR ${BUILD_DIR}/lib/Release)
set(LIB_FIX)
if (CMAKE_BUILD_TYPE MATCHES "Debug")
set(LIB_DIR ${BUILD_DIR}/lib/Debug)
set(LIB_FIX _d)
endif ()
get_filename_component(ABSOLUTE_PATH ${LIB_DIR} ABSOLUTE)
set(LIB_DIR ${ABSOLUTE_PATH})
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LIB_DIR})
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${LIB_DIR})
set(CMAKE_PDB_OUTPUT_DIRECTORY ${LIB_DIR})
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${LIB_DIR})
set(LIB_DIR_FIX ${LIB_DIR})
option(USE_VS_BUILD "use visual studio build." OFF)
if (USE_VS_BUILD)
set(LIB_DIR_FIX ${LIB_DIR}/bin/Debug)
endif ()
#################### set include path ####################
include_directories(
${CMAKE_CURRENT_SOURCE_DIR}/source/cpp/logger
${CMAKE_CURRENT_SOURCE_DIR}/source/cpp/misc
${CMAKE_CURRENT_SOURCE_DIR}/source/cpp
${BUILD_DIR}/include
)
#################### scan source files ####################
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/source/cpp/logger SRC_FILES)
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/source/cpp/misc SRC_FILES)
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/source/cpp SRC_FILES)
#####设置资源文件
set(RESOURCE_SOURCES
image.qrc
)
#################### version config ####################
if (MSVC)
set(MY_VERSIONINFO_RC "${CMAKE_CURRENT_BINARY_DIR}/VersionInfo.rc")
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/resource.rc.in"
"${MY_VERSIONINFO_RC}")
endif ()
set(MY_VERSIONINFO_RC "")
add_executable(${PROJECT_NAME} main.cpp mainwindow.cpp mainwindow.h mainwindow.ui ${SRC_FILES} ${RESOURCE_SOURCES} ${MY_VERSIONINFO_RC})
#################### set target properties ####################
set_target_properties(${PROJECT_NAME} PROPERTIES DEBUG_POSTFIX _d)
set_property(TARGET ${PROJECT_NAME} PROPERTY WIN32_EXECUTABLE true)
#################### set target dependencies ####################
find_package(Qt${QT_VERSION} COMPONENTS ${REQUIRED_LIBS} REQUIRED)
###############vcpkg的三方库######################################
find_package(g3log CONFIG REQUIRED)
###############三方静态库#########################################
set(REDIS_CLIENT_LIB ${LIB_DIR_FIX}/redisclient${LIB_FIX}.lib)
set(THIRD_LIBS
g3log
${REDIS_CLIENT_LIB}
)
target_link_libraries(${PROJECT_NAME} PRIVATE ${REQUIRED_LIBS_QUALIFIED} ${THIRD_LIBS})