QT通过QSS文件样式表设置改变窗体与按钮背景外观.rar资源-CSDN文库

共29个文件

png：6个

qss：4个

cpp：4个

需积分: 43 11 浏览量 2022-09-25 22:05:50 上传评论收藏 3.12MB RAR 举报

QT框架是Qt公司开发的一款强大的跨平台应用程序开发框架，它提供了丰富的GUI（图形用户界面）工具，使得开发者能够创建出美观且功能丰富的应用。在QT中，QSS（Qt Style Sheet）类似于HTML中的CSS，是一种样式表语言，用于定义QT界面元素的外观，包括窗口、按钮、文本框等。QSS的引入极大地提升了QT应用的定制性和灵活性，让开发者能够轻松地改变窗体和按钮的背景外观，实现个性化设计。通过QSS文件，我们可以控制窗口的边框、颜色、大小、字体等属性，以及按钮的背景色、文字颜色、边框样式等。QSS支持多种选择器，如类选择器、ID选择器、元素选择器等，这使得我们可以精确地定位到特定的界面组件并进行样式调整。例如，我们可以使用以下QSS代码将一个按钮的背景色设置为红色，文字颜色设置为白色： ```css QPushButton { background-color: red; color: white; } ``` 在QT中应用QSS文件通常有以下步骤： 1. 创建QSS文件：我们需要创建一个`.qss`文件，其中包含上述的样式定义。 2. 加载QSS文件：然后在QT程序中，我们可以通过`QFile`读取QSS文件，并使用`QString`存储其内容。接着，使用`QTextStream`读取文件内容。 ```cpp QFile styleFile("styles.qss"); if (styleFile.open(QFile::ReadOnly | QFile::Text)) { QTextStream in(&styleFile); QString style = in.readAll(); styleFile.close(); } ``` 3. 应用QSS：加载完QSS内容后，我们可以将其应用到`QApplication`或具体的`QWidget`对象上。对于全局应用，可以使用`QApplication::setStyleSheet()`；对于特定部件，可以使用`QWidget::setStyleSheet()`。 ```cpp QApplication::setStyleSheet(style); ``` 或者 ```cpp QPushButton *myButton = new QPushButton(this); myButton->setStyleSheet(style); ``` 4. 更新界面：更改样式后，QT会自动更新界面以反映新的样式。除了基本的颜色和尺寸属性，QSS还支持图像、渐变、边框阴影等高级效果。例如，可以使用`background-image`属性设置按钮背景为一张图片，或者使用`border-radius`属性实现圆角效果。 ```css QPushButton { background-image: url(button_bg.png); border-radius: 10px; } ``` 在QT的开发过程中，QSS是实现界面美化的重要工具。通过熟练掌握QSS，开发者能够打造出符合品牌风格和用户体验需求的应用界面。同时，QSS文件的引入也使得UI设计与程序逻辑分离，提高了代码的可维护性。对于本压缩包中的"src8_2"文件，很可能是QT项目中的源代码或样例，可能包含了如何使用QSS改变窗体和按钮外观的具体实现，可以作为学习和参考的对象。

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QT通过QSS文件样式表设置改变窗体与按钮背景外观.rar （29个子文件）

src8_2

my_style2.qss 744B

beijing02.png 262KB

beijing01.png 262KB

mainwindow8_2.ui 4KB

mainwindow8_2.cpp 2KB

sliderHandle.png 327B

mainwindow8_2.h 478B

slider.png 152B

img_src.qrc 370B

main.cpp 189B

Debug

moc_mainwindow8_2.cpp 4KB

ui_mainwindow8_2.h 5KB

my_style2.qss 744B

qrc_img_src.o 531KB

mainwindow8_2.o 629KB

src8_2.exe 2.06MB

新建 Microsoft PowerPoint 演示文稿.pptx 29KB

.qmake.stash 1KB

moc_predefs.h 14KB

dropdown2.png 47KB

moc_mainwindow8_2.o 475KB

Makefile 83KB

dropdown.png 29KB

main.o 562KB

qrc_img_src.cpp 2.66MB

my_style.qss 747B

src8_2.pro.user 40KB

my_style.qss 747B

src8_2.pro 1KB

/**************************************************************************** ** Resource object code ** ** Created by: The Resource Compiler for Qt version 5.14.1 ** ** WARNING! 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