QT自定义精美换肤界面
Qt实际库里的自带组件的样式是系统标准的，要得到更好看的界面，光靠库里的样式是远远不够的，样式表的出现使得使用Qt做出更加漂亮的界面成为可能。
1. Qt样式表的动态加载：
代码如下：
QFile file(":/qss/stylesheet.qss");
file.open(QFile::ReadOnly);
QString styleSheet = QLatin1String(file.readAll());
qApp->setStyleSheet(styleSheet);
file.close(); 2.QPushButton样式
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#DEB887;
}
QPushButton#pushButton{
background-color:#F08080;
}
QPushButton#pushButton_2{
background-color:#FF8C00;
border-radius: 10px;
}
QPushButton#pushButton_3{
background-color:#4169E1;
}
QPushButton#pushButton_1{
background-image: url(:qss/Skin/black/tools/tab-image.png);
border-radius: 10px;
border: 2px groove gray;
border-style: outset;
}3.QListWidget样式
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#B8B8B8;
}
QListWidget#listWidget{
background:rgba(210,240,250,255);
color:#00CCFF;border:0px solid gray;
padding:0px -2px 5px 5px;}"
"QListWidget::item{width:94px;height:35px;border:0px solid gray;padding-left:8px;}
"QListWidget::item:!selected{}"
"QListWidget::item:selected:active{background:#FFFFFF;color:#00CCFF;border-width:-1;}"
"QListWidget::item:selected{background:#FFFFFF;color:#00CCFF;}"
}4.QComboBox样式
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#B8B8B8;
}
QComboBox#comboBox{
color:#00CCFF;
border: 1px solid gray;
border-radius: 3px;
height: 25px;
padding: 1px 2px 1px 2px; # 针对于组合框中的文本内容
subcontrol-origin: padding;
subcontrol-position: top right;
width: 20px;
color:#00CCFF;
border:0px solid gray;
border:1px solid #d7d7d7;
border-radius: 3px;
padding: 1px 18px 1px 3px;
QComboBox:editable{ background: white; };
QComboBox:!editable{ background: #fbfbfb; color:#666666};
QComboBox::drop-down{ subcontrol-origin: padding;};
subcontrol-position: top right;
width: 22px;
border-left-width: 1px;
border-left-color: #c9c9c9;
border-left-style: solid; /* just a single line */
border-top-right-radius: 3px; /* same radius as the QComboBox */
border-bottom-right-radius: 3px;
QComboBox::down-arrow { image: url(:/down.png);} ;
QComboBox::down-arrow:on { /* shift the arrow when popup is open */ top: 1px; left: 1px;} ;
QComboBox{font-size: 11px} ;
QComboBox:!selected{color: red};
QComboBox:selected:active{background-color: orange };
QComboBox:selected{color: orange};
}
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#B8B8B8;
}
QProgressBar#progressBar{
border:none;
background:#696969;
border-radius:5px;
text-align:center;
}
QProgressBar::chunk {
background-color:rgb(58, 154, 255);
border-radius:4px;
}
代码如下：
QLinlineEdit::lineEdit{
enabled{color:#1964F};
disabled{color:orange};
border:1px solid gray;
border-radius:5px;
padding:0px 10px 0px 20px;
background:yellow;
selection-background-color: darkgary;
background-image:url(:qss/Skin/black/tools/edit.png);
}7.QScrollBar样式
代码如下：
QScrollBar#verticalScrollBar:vertical
{
width:8px;
background:rgba(0,0,0,0%);
margin:0px,0px,0px,0px;
padding-top:16px;
padding-bottom:16px;
}
QScrollBar#verticalScrollBar::handle:vertical
{
width:8px;
background:rgba(0,0,0,25%);
border-radius:4px;
min-height:20;
}
QScrollBar#verticalScrollBar::handle:vertical:hover
{
width:8px;
background:rgba(0,0,0,50%);
border-radius:4px;
min-height:20;
}
QScrollBar#verticalScrollBar::add-line:vertical
{
height:16px;width:16px;
border-image:url(:qss/Skin/black/tools/appbar.menu.hover.png);
subcontrol-position:bottom;
}
QScrollBar#verticalScrollBar::sub-line:vertical
{
height:16px;width:16px;
border-image:url(:qss/Skin/black/tools/appbar.menu.put.hover.png);
subcontrol-position:top;
}
QScrollBar#verticalScrollBar::add-line:vertical:hover
{
height:16px;width:16px;
border-image:url(:qss/Skin/black/tools/appbar.menu.down.png);
subcontrol-position:bottom;
}
QScrollBar#verticalScrollBar::sub-line:vertical:hover
{
height:16px;width:16px;
border-image:url(:qss/Skin/black/tools/appbar.menu.put.down.png);
subcontrol-position:top;
}
QScrollBar#verticalScrollBar::add-page:vertical,QScrollBar#verticalScrollBar::sub-page:vertical
{
border-style:solid;
background:white;
border-radius:4px;
}
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#0066CC;
}
QSlider#horizontalSlider::groove:horizontal {
border: 1px solid #4A708B;
background: #orange;
height: 5px;
border-radius: 1px;
padding-left:-1px;
padding-right:-1px;
}
QSlider#horizontalSlider::sub-page:horizontal {
background: qlineargradient(x1:0, y1:0, x2:0, y2:1,
stop:0 #B1B1B1, stop:1 #c4c4c4);
background: qlineargradient(x1: 0, y1: 0.2, x2: 1, y2: 1,
stop: 0 #5DCCFF, stop: 1 #1874CD);
border: 1px solid #4A708B;
height: 10px;
border-radius: 2px;
}
QSlider#horizontalSlider::add-page:horizontal {
background: #575757;
border: 0px solid #777;
height: 10px;
border-radius: 2px;
}
QSlider#horizontalSlider::handle:horizontal
{
background: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5,
stop:0.6 #45ADED, stop:0.778409 rgba(255, 255, 255, 255));
width: 11px;
margin-top: -3px;
margin-bottom: -3px;
border-radius: 5px;
}
QSlider#horizontalSlider::handle:horizontal:hover {
background: qradialgradient(spread:pad, cx:0.5, cy:0.5, radius:0.5, fx:0.5, fy:0.5, stop:0.6 #2A8BDA,
stop:0.778409 rgba(255, 255, 255, 255));
width: 11px;
margin-top: -3px;
margin-bottom: -3px;
border-radius: 5px;
}
QSlider#horizontalSlider::sub-page:horizontal:disabled {
background: #00009C;
border-color: #999;
}
QSlider#horizontalSlider::add-page:horizontal:disabled {
background: #eee;
border-color: #999;
}
QSlider#horizontalSlider::handle:horizontal:disabled {
background: #eee;
border: 1px solid #aaa;
border-radius: 4px;
} 9.QTabWidget样式
美化前：
美化后：
代码如下：
QWidget#centralWidget{
border-style:solid;
background: transparent;
background-color:#2F4F4F;
}
QtableWidget#tableWidget:pane{
background: transparent;
background-color:#FFE4B5;
}
QTabBar::tab {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,
stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);
border: 0.5px solid #C4C4C3;
border-bottom-color: #C2C7CB;
border-top-left-radius: 1px;
border-top-right-radius: 1px;
min-width: 8ex;
padding: 2px;
color:white;
}
QTabBar::tab:selected, QTabBar::tab:hover {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #fafafa, stop: 0.4 #f4f4f4,
stop: 0.5 #e7e7e7, stop: 1.0 #fafafa);
}
QTabBar::tab:!selected {
border-color: black;
border-style:solid;
background: transparent;
border-bottom-color: red;
background-image: url(:qss/Skin/black/tools/tab-image-pressed.png);
}
QTabBar::tab:selected {
border-style:solid;
border-color: black;
background: transparent;
border-bottom-color: red;
background-image: url(:qss/Skin/black/tools/tab-image.png);
}代码如下：
QTabWidget#tab>QTabBar::tab:first
{
border-image: url(:/Default_N.png);
}
QTabWidget#tab>QTabBar::tab:first:hover
{
border-image: url(:/Default_P.png);
}
QTabWidget#tab>QTabBar::tab:first:pressed
{
border-image: url(:/Default_P.png);
}
QTabWidget#tab>QTabBar::tab:last
{
border-image: url(:/Apply_N.png);
}
QTabWidget#tab>QTabBar::tab:last:hover
{
border-image: url(:/Apply_P.png);
}
QTabWidget#tab>QTabBar::tab:last:pressed
{
border-image: url(:/Apply_P.png);
}
自定义的前台背景与后台背景的颜色：
如果需要样一个文本编辑器的背景变为黄色，
下面是代码行：
qApp->setStyleSheet("QLineEdit { background-color: yellow }");
针对一个对话框的内容中使用
QLineEdit 以及
QLineEdit 的子类的背景都变成黄色，
下面是代码：
myDialog->setStyleSheet("QLineEdit { background-color: yellow }");
如果只需要制定一个
QLineEdit 的内容，
将使用
QObject::setObjectName() 下面是一个实例：
myDialog->setStyleSheet("QLineEdit#nameEdit { background-color: yellow }");
同时也可以针对每一个指定的部件做直接的类型设置，
下面是一个实例：
nameEdit->setStyleSheet("background-color: yellow");
为了做一个鲜明的对比，
将要为文本设置合适的颜色。
nameEdit->setStyleSheet("color: blue; background-color: yellow");
当然最好的办法还有针对选择的文本来进行设置，
下面设置了一个选择文本的类型属性：
nameEdit->setStyleSheet("color: blue;"
"background-color: yellow;"
"selection-color: yellow;"
"selection-background-color: blue;");
在有一些情况下，
不需要用户参与，
而有软件设计人员来自己制定样式，
即使这些是有违审美角度。
下面就从应用程序开发角度来设计样式。
*[mandatoryField="true"] { background-color: yellow }
上面的意思是一些强制的区域是需要用
Qt 的属性管理来强制设置成为黄色的背景。
这样一些强制的部件，将需要通过函数来设置当前的属性已经被强制设置，
下面是实现的代码：
QLineEdit *nameEdit = new QLineEdit(this);
nameEdit->setProperty("mandatoryField", true);
QLineEdit *emailEdit = new QLineEdit(this);
emailEdit->setProperty("mandatoryField", true);
QSpinBox *ageSpinBox = new QSpinBox(this);
ageSpinBox->setProperty("mandatoryField", true);
QPushButton：
下面我们将通过一个按钮的部件来设置属性样式：
首先来设置一下样式：
QPushButton#evilButton { background-color: red }
说明设置的当前的按钮为红色。
作为一个
flat 平滑的按钮时没有边界的。
下面是来改进一下对边界的设置。
QPushButton#evilButton {
background-color: red;
border-style: outset;
border-width: 2px;
border-color: beige;
}
在这里设置了一个边界的类型与边界的宽度。
这样看上去就好多了，文档中无法展现图片，
有兴趣可以去
Qt的变成环境当中去尝试。即使这样设计，
按钮看上去也是显得混乱，与主部件没有办法分开。
首先是在边界设置出一个空间出来，
并且强制的制定最小宽度，与环绕的弧度，
并且提供一个按钮的字体设置，
似的按钮看上去比较好看。
QPushButton#evilButton {
background-color: red;
border-style: outset;
border-width: 2px;
border-radius: 10px;
border-color: beige;
font: bold 14px;
min-width: 10em;
padding: 6px;
}
如此这样当我们点击按钮的时候按钮也不会发生什么样的深刻变化。
所以就需要指定一个合适的背景颜色与不一样的边界类型。
QPushButton#evilButton {
background-color: red;
border-style: outset;
border-width: 2px;
border-radius: 10px;
border-color: beige;
font: bold 14px;
min-width: 10em;
padding: 6px;
}
QPushButton#evilButton:pressed {
background-color: rgb(224, 0, 0);
border-style: inset;
}
指定
QPushButton 菜单指示器的子控制
子控提供了访问子子元素的功能，
例如通常的时候一个按钮将会管理一个菜单，
QPushButton#evilButton::menu-indicator {
image: url(myindicator.png);
}
同时如果美化一个按钮的话，
那么将可以通过定位符来确定美化按钮的路径，
通常可以是一个图片。
QPushButton::menu-indicator {
image: url(myindicator.png);
subcontrol-position: right center;
subcontrol-origin: padding;
left: -2px;
}
经过以上的设置那么
QPushButton 将会在方格的中心显示一个
myindicator.png 的图片。
定制按钮：
QPushButton {
border: 2px solid #8f8f91;
border-radius: 6px;
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #f6f7fa, stop: 1 #dadbde);
min-width: 80px;
}
QPushButton:pressed {
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #dadbde, stop: 1 #f6f7fa);
}
QPushButton:flat {
border: none; /* 没有边框的按钮
*/
}
QPushButton:default {
border-color: navy; /* 使得按钮显示变得更加突出
*/
}
QPushButton:open { /* when the button has its menu open */
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #dadbde, stop: 1 #f6f7fa);
}
QPushButton::menu-indicator {
image: url(menu_indicator.png);
subcontrol-origin: padding;
subcontrol-position: bottom right;
}
QPushButton::menu-indicator:pressed, QPushButton::menu-indicator:open {
position: relative;
top: 2px; left: 2px; /* shift the arrow by 2 px */
}
QSlider：
下面的横向的slider
QSlider::groove:horizontal {
border: 1px solid #999999;
height: 8px; /* the groove expands to the size of the slider by default. by giving it a height, it has a fixed size */
background: qlineargradient(x1:0, y1:0, x2:0, y2:1, stop:0 #B1B1B1, stop:1 #c4c4c4);
margin: 2px 0;
}
QSlider::handle:horizontal {
background: qlineargradient(x1:0, y1:0, x2:1, y2:1, stop:0 #b4b4b4, stop:1 #8f8f8f);
border: 1px solid #5c5c5c;
width: 18px;
margin: -2px 0; /* handle is placed by default on the contents rect of the groove. Expand outside the groove */
border-radius: 3px;
}
QSlider::groove:vertical {
background: red;
position: absolute; /* absolutely position 4px from the left and right of the widget. setting margins on the widget should work too... */
left: 4px; right: 4px;
}
QSlider::handle:vertical {
height: 10px;
background: green;
margin: 0 -4px; /* expand outside the groove */
}
QSlider::add-page:vertical {
background: white;
}
QSlider::sub-page:vertical {
background: pink;
}
QSizeGrip：
一般讲通过一个图片进行设置
：
QSizeGrip {
image: url(:/images/sizegrip.png);
width: 16px;
height: 16px;
}
定制QSplitter：
QSplitter::handle {
image: url(images/splitter.png);
}
QSplitter::handle:horizontal {
height: 2px;
}
QSplitter::handle:vertical {
width: 2px;
}
QStatusBar：
将提供一个状态栏的边框与项目的定制：
QStatusBar {
background: brown;
}
QStatusBar::item {
border: 1px solid red;
border-radius: 3px;
}
QTabWidget与QTabBar：
QTabWidget::pane { /* The tab widget frame */
border-top: 2px solid #C2C7CB;
}
QTabWidget::tab-bar { /* move to the right by 5px */
left: 5px;
}
/* Style the tab using the tab sub-control. Note that
it reads QTabBar _not_ QTabWidget */
QTabBar::tab {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,
stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);
border: 2px solid #C4C4C3;
border-bottom-color: #C2C7CB; /* same as the pane color */
border-top-left-radius: 4px;
border-top-right-radius: 4px;
min-width: 8ex;
padding: 2px;
}
QTabBar::tab:selected, QTabBar::tab:hover {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #fafafa, stop: 0.4 #f4f4f4,
stop: 0.5 #e7e7e7, stop: 1.0 #fafafa);
}
QTabBar::tab:selected {
border-color: #9B9B9B;
border-bottom-color: #C2C7CB; /* same as pane color */
}
QTabBar::tab:!selected {
margin-top: 2px; /* make non-selected tabs look smaller */
}
QTabWidget::pane { /* The tab widget frame */
border-top: 2px solid #C2C7CB;
}
QTabWidget::tab-bar {
left: 5px; /* move to the right by 5px */
}
/* Style the tab using the tab sub-control. Note that
it reads QTabBar _not_ QTabWidget */
QTabBar::tab {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,
stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);
border: 2px solid #C4C4C3;
border-bottom-color: #C2C7CB; /* same as the pane color */
border-top-left-radius: 4px;
border-top-right-radius: 4px;
min-width: 8ex;
padding: 2px;
}
QTabBar::tab:selected, QTabBar::tab:hover {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #fafafa, stop: 0.4 #f4f4f4,
stop: 0.5 #e7e7e7, stop: 1.0 #fafafa);
}
QTabBar::tab:selected {
border-color: #9B9B9B;
border-bottom-color: #C2C7CB; /* same as pane color */
}
QTabBar::tab:!selected {
margin-top: 2px; /* make non-selected tabs look smaller */
}
/* make use of negative margins for overlapping tabs */
QTabBar::tab:selected {
/* expand/overlap to the left and right by 4px */
margin-left: -4px;
margin-right: -4px;
}
QTabBar::tab:first:selected {
margin-left: 0; /* the first selected tab has nothing to overlap with on the left */
}
QTabBar::tab:last:selected {
margin-right: 0; /* the last selected tab has nothing to overlap with on the right */
}
QTabBar::tab:only-one {
margin: 0; /* 如果只有一个页面, 我们不能重叠边缘 */
}
QTabWidget::pane { /* The tab widget frame */
border-top: 2px solid #C2C7CB;
position: absolute;
top: -0.5em;
}
QTabWidget::tab-bar {
alignment: center;
}
/* Style the tab using the tab sub-control. Note that
it reads QTabBar _not_ QTabWidget */
QTabBar::tab {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,
stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);
border: 2px solid #C4C4C3;
border-bottom-color: #C2C7CB; /* same as the pane color */
border-top-left-radius: 4px;
border-top-right-radius: 4px;
min-width: 8ex;
padding: 2px;
}
QTabBar::tab:selected, QTabBar::tab:hover {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #fafafa, stop: 0.4 #f4f4f4,
stop: 0.5 #e7e7e7, stop: 1.0 #fafafa);
}
QTabBar::tab:selected {
border-color: #9B9B9B;
border-bottom-color: #C2C7CB; /* same as pane color */
}
定制 QTableWidget：
下面将设置
QTableWidget 的粉色选中区域，
与白色背景。
QTableWidget {
selection-background-color: qlineargradient(x1: 0, y1: 0, x2: 0.5, y2: 0.5,
stop: 0 #FF92BB, stop: 1 white);
}
QTableWidget QTableCornerButton::section {
background: red;
border: 2px outset red;
}
QToolBox：
下面是对工具条的一些选项进行定制
QToolBar {
background: red;
spacing: 3px; /* spacing between items in the tool bar */
}
QToolBar::handle {
image: url(handle.png); // 可以设置工具条的背景图片
}
定制 QToolBox：
将使用到
tab 的子控部分
QToolBox::tab {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #E1E1E1, stop: 0.4 #DDDDDD,
stop: 0.5 #D8D8D8, stop: 1.0 #D3D3D3);
border-radius: 5px;
color: darkgray;
}
QToolBox::tab:selected { /* italicize selected tabs */
font: italic;
color: white;
}
定制 QToolButton：
QToolButton { /* all types of tool button */
border: 2px solid #8f8f91;
border-radius: 6px;
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #f6f7fa, stop: 1 #dadbde);
}
QToolButton[popupMode="1"] { /* only for MenuButtonPopup */
padding-right: 20px; /* make way for the popup button */
}
QToolButton:pressed {
background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #dadbde, stop: 1 #f6f7fa);
}
/* the subcontrols below are used only in the MenuButtonPopup mode */
QToolButton::menu-button {
border: 2px solid gray;
border-top-right-radius: 6px;
border-bottom-right-radius: 6px;
/* 16px width + 4px for border = 20px allocated above */
width: 16px;
}
QToolButton::menu-arrow {
image: url(downarrow.png);
}
QToolButton::menu-arrow:open {
top: 1px; left: 1px; /* shift it a bit */
}
QTreeView：
QTreeView::branch {
background: palette(base);
}
QTreeView::branch:has-siblings:!adjoins-item {
background: cyan;
}
QTreeView::branch:has-siblings:adjoins-item {
background: red;
}
QTreeView::branch:!has-children:!has-siblings:adjoins-item {
background: blue;
}
QTreeView::branch:closed:has-children:has-siblings {
background: pink;
}
QTreeView::branch:has-children:!has-siblings:closed {
background: gray;
}
QTreeView::branch:open:has-children:has-siblings {
background: magenta;
}
QTreeView::branch:open:has-children:!has-siblings {
background: green;
}
QSS、CSS样式表属性参考表：
http://www.w3school.com.cn/css/css_background.asp