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在涉及到Qt 美工的时候首先需要掌握CSS 级联样式表。
下面将通过几个例子来介绍一下怎样使用Qt中的部件类型设计。自定义的前台背景与后台背景的颜色：
如果需要一个文本编辑器的背景变为黄色， 下面是代码行：
qApp->setStyleSheet("QLineEdit {
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 {
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 {
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：
ui.nameEdit->setStyleSheet("
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;
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;"
""
"selection-color: yellow;"
"selection-");
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"] { ">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 * evilButton = new QPushButton (this);
evilButton ->setText("Button");
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 { line-height:150%; ">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 {
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 {
border-style: outset;
border-width: 2px;
border-radius: 6px;
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 {
border-style: outset;
border-width: 2px;
border-radius: 10px;
border-color: beige;
font: bold 14px;
min-width: 10em;
padding: 6px;
}
QPushButton#evilButton:pressed {
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。
复杂区域的例子：
当应对于一个用户可编辑可输入的部件的时候， 将需要设计到用户选择区域的颜色设置， 与类型设置， 下面将通过使用QLineEdit 部件来进行演示：
QLineEdit { color: red }
QLineEdit[readOnly="true"]{color:gray}
在团队开发的时候， 需要设计到不同颜色的设置， 或者说不同类型的设置，那么就需要在样式编辑当中有多种选择，将不需要的那部分，注释掉：
QLineEdit { color: red }
QLineEdit[readOnly="true"] { color: gray }
#registrationDialog QLineEdit { color: brown }
自定义制定的部件
这个部分提供了一些自定义特殊部件的某种样式
定制QAbstractScrollArea
比如说一些QAbstractScrollArea 类， 例如 QTextEdit 与QTextBrowser . 同时可以使用后台的属性来进行设置。 例如来设置一个 背景图片。
QTextEdit, QListView {
background-image: url(draft.png);
background-attachment: scroll;
}
下面的代码是让背景图片与可浏览的区域大小相同：
QTextEdit, QListView {
background-image: url(draft.png);
background-attachment: fixed;
}
QCheckBox 与QRadioButton 具有想色的属性， 他们之间的不同时QCheckBox是返回当前的状态：
QCheckBox {
spacing: 5px;
}
QCheckBox::indicator {
width: 13px;
height: 13px;
}
QCheckBox::indicator:unchecked {
image: url(:/images/checkbox_unchecked.png);
}
QCheckBox::indicator:unchecked:hover {
image: url(:/images/checkbox_unchecked_hover.png);
}
QCheckBox::indicator:unchecked:pressed {
image: url(:/images/checkbox_unchecked_pressed.png);
}
QCheckBox::indicator:checked {
image: url(:/images/checkbox_checked.png);
}
QCheckBox::indicator:checked:hover {
image: url(:/images/checkbox_checked_hover.png);
}
QCheckBox::indicator:checked:pressed {
image: url(:/images/checkbox_checked_pressed.png);
}
QCheckBox::indicator:indeterminate:hover {
image: url(:/images/checkbox_indeterminate_hover.png);
}
QCheckBox::indicator:indeterminate:pressed {
image: url(:/images/checkbox_indeterminate_pressed.png);
}
下面是对QComboBox下拉列表框进行的样式设计：
QComboBox {
border: 1px solid gray;
border-radius: 3px;
padding: 1px 18px 1px 3px;
min-width: 6em;
}
QComboBox:editable {
background: white;
}
QComboBox:!editable, QComboBox::drop-down:editable {
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);
}
/* QComboBox gets the "on" state when the popup is open */
QComboBox:!editable:on, QComboBox::drop-down:editable:on {
background: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
stop: 0 #D3D3D3, stop: 0.4 #D8D8D8,
stop: 0.5 #DDDDDD, stop: 1.0 #E1E1E1);
}
QComboBox:on { /* shift the text when the popup opens */
padding-top: 3px;
padding-left: 4px;
}
QComboBox::drop-down {
subcontrol-origin: padding;
subcontrol-position: top right;
width: 15px;
border-left-width: 1px;
border-left-color: darkgray;
border-left-style: solid; /* 仅此一行 */
border-top-right-radius: 3px;
border-bottom-right-radius: 3px;
}
QComboBox::down-arrow {
image: url(/usr/share/icons/crystalsvg/16x16/actions/1downarrow.png);
}
QComboBox::down-arrow:on { /* shift the arrow when popup is open */
top: 1px;
left: 1px;
}
自定的QSpinBox
QSpinBox {
padding-right: 15px; /* make room for the arrows */
border-image: url(:/images/frame.png) 4;
border-width: 3;
}
QSpinBox::up-button {
subcontrol-origin: border;
subcontrol-position: top right; /* position at the top right corner */
width: 16px; /* 16 + 2*1px border-width = 15px padding + 3px parent border */
border-image: url(:/images/spinup.png) 1;
border-width: 1px;
}
QSpinBox::up-button:hover {
border-image: url(:/images/spinup_hover.png) 1;
}
QSpinBox::up-button:pressed {
border-image: url(:/images/spinup_pressed.png) 1;
}
QSpinBox::up-arrow {
image: url(:/images/up_arrow.png);
width: 7px;
height: 7px;
}
QSpinBox::up-arrow:disabled, QSpinBox::up-arrow:off { /* off state when value is max */
image: url(:/images/up_arrow_disabled.png);
}
QSpinBox::down-button {
subcontrol-origin: border;
subcontrol-position: bottom right; /* position at bottom right corner */
width: 16px;
border-image: url(:/images/spindown.png) 1;
border-width: 1px;
border-top-width: 0;
}
QSpinBox::down-button:hover {
border-image: url(:/images/spindown_hover.png) 1;
}
QSpinBox::down-button:pressed {
border-image: url(:/images/spindown_pressed.png) 1;
}
QSpinBox::down-arrow {
image: url(:/images/down_arrow.png);
width: 7px;
height: 7px;
}
QSpinBox::down-arrow:disabled,
QSpinBox::down-arrow:off { /* off state when value in min */
image: url(:/images/down_arrow_disabled.png);
}
自定义的 QFrame
QFrame, QLabel, QToolTip {
border: 2px solid green;
border-radius: 4px;
padding: 2px;
background-image: url(images/welcome.png);
}
定制QGroupbox
QGroupBox {
"> stop: 0 #E0E0E0, stop: 1 #FFFFFF);
border: 2px solid gray;
border-radius: 5px;
margin-top: 1ex; /* leave space at the top for the title */
}
QGroupBox::title {
subcontrol-origin: margin;
subcontrol-position: top center; /* position at the top center */
padding: 0 3px;
"> stop: 0 #FFOECE, stop: 1 #FFFFFF);
}
对于有一个可选择的QGroupBox ， 使用{#indicator-sub}{::indicator} 他的类型控制就类似于QCheckBox.
QGroupBox::indicator {
width: 13px;
height: 13px;
}
QGroupBox::indicator:unchecked {
image: url(:/images/checkbox_unchecked.png);
}
定制 QHeaderView
QHeaderView::section {
"> stop:0 #616161, stop: 0.5 #505050,
stop: 0.6 #434343, stop:1 #656565);
color: white;
padding-left: 4px;
border: 1px solid #6c6c6c;
}
/* style the sort indicator */
QHeaderView::down-arrow {
image: url(down_arrow.png);
}
QHeaderView::up-arrow {
image: url(up_arrow.png);
}
定制QLineEdit
QLineEdit {
border: 1px solid gray;
border-radius: 4px;
padding: 0 8px;
background: white;
selection-
}
当一个QLineEdit 需要使用一个密码的模式的话那么将设置成为QLineEdit::Password 这样属性就被使用了。
QLineEdit[echoMode="2"] {
lineedit-password-character: 9679;
}
QLineEdit:read-only {
background: lightblue;
}
定制QMenu
QMenu {
/* 设置菜单的背景 */
border: 1px solid black;
}
QMenu::item {
/* 设置菜单的项目的背景 */
}
QMenu::item:selected { /* 当用户使用鼠标活着键盘进行选择的时候选择项的颜色 */
}
对于菜单部件的一些其他的选项， 下面提供了许多高级的设置：
QMenu {
margin: 2px; /* 围绕菜单的一些空间 */
}
QMenu::item {
padding: 2px 25px 2px 20px;
border: 1px solid transparent; /* reserve space for selection border */
}
QMenu::item:selected {
border-color: darkblue;
background: rgba(100, 100, 100, 150);
}
QMenu::icon:checked { /* appearance of a ‘checked‘ icon */
background: gray;
border: 1px inset gray;
position: absolute;
top: 1px;
right: 1px;
bottom: 1px;
left: 1px;
}
QMenu::separator {
height: 2px;
background: lightblue;
margin-left: 10px;
margin-right: 5px;
}
QMenu::indicator {
width: 13px;
height: 13px;
}
/* non-exclusive indicator = check box style indicator (see QActionGroup::setExclusive) */
QMenu::indicator:non-exclusive:unchecked {
image: url(:/images/checkbox_unchecked.png);
}
QMenu::indicator:non-exclusive:unchecked:selected {
image: url(:/images/checkbox_unchecked_hover.png);
}
QMenu::indicator:non-exclusive:checked {
image: url(:/images/checkbox_checked.png);
}
QMenu::indicator:non-exclusive:checked:selected {
image: url(:/images/checkbox_checked_hover.png);
}
/* exclusive indicator = radio button style indicator (see QActionGroup::setExclusive) */
QMenu::indicator:exclusive:unchecked {
image: url(:/images/radiobutton_unchecked.png);
}
QMenu::indicator:exclusive:unchecked:selected {
image: url(:/images/radiobutton_unchecked_hover.png);
}
QMenu::indicator:exclusive:checked {
image: url(:/images/radiobutton_checked.png);
}
QMenu::indicator:exclusive:checked:selected {
image: url(:/images/radiobutton_checked_hover.png);
}
定制菜单条
QMenuBar {
"> stop:0 lightgray, stop:1 darkgray);
}
QMenuBar::item {
spacing: 3px; /* 菜单栏项目空间大小 */
padding: 1px 4px;
background: transparent;
border-radius: 4px;
}
QMenuBar::item:selected { /* 当用键盘或者鼠标选择的时候的背景 */
background: #a8a8a8;
}
QMenuBar::item:pressed {
background: #888888;
}
定制进度条
QProgressBar {
border: 2px solid grey;
border-radius: 5px;
}
QProgressBar::chunk {
width: 20px;
}
QProgressBar {
border: 2px solid grey;
border-radius: 5px;
text-align: center;
}
QProgressBar::chunk {
width: 10px;
margin: 0.5px;
}
定制按钮
QPushButton {
border: 1px solid #8f8f91;
border-radius: 3px;
"> stop: 0 #f6f7fa, stop: 1 #dadbde);
min-width: 80px;
}
QPushButton:pressed {
"> 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 */
"> 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 */
}
定制 QRadioButton
QRadioButton::indicator {
width: 13px;
height: 13px;
}
QRadioButton::indicator::unchecked {
image: url(:/images/radiobutton_unchecked.png);
}
QRadioButton::indicator:unchecked:hover {
image: url(:/images/radiobutton_unchecked_hover.png);
}
QRadioButton::indicator:unchecked:pressed {
image: url(:/images/radiobutton_unchecked_pressed.png);
}
QRadioButton::indicator::checked {
image: url(:/images/radiobutton_checked.png);
}
QRadioButton::indicator:checked:hover {
image: url(:/images/radiobutton_checked_hover.png);
}
QRadioButton::indicator:checked:pressed {
image: url(:/images/radiobutton_checked_pressed.png);
}
定制ScrollBar
下面是一个填充的实体的灰色边框的滚动条
QScrollBar:horizontal {
border: 2px solid grey;
background: #32CC99;
height: 15px;
margin: 0px 20px 0 20px;
}
QScrollBar::handle:horizontal {
background: white;
min-width: 20px;
}
QScrollBar::add-line:horizontal {
border: 2px solid grey;
background: #32CC99;
width: 20px;
subcontrol-position: right;
subcontrol-origin: margin;
}
QScrollBar::sub-line:horizontal {
border: 2px solid grey;
background: #32CC99;
width: 20px;
subcontrol-position: left;
subcontrol-origin: margin;
}
左箭头与右箭头都分别设置成为灰色的边框与白色的背景，所以，两边都可以设置一个嵌入的图片。
QScrollBar:left-arrow:horizontal, QScrollBar::right-arrow:horizontal {
border: 2px solid grey;
width: 3px;
height: 3px;
background: white;
}
QScrollBar::add-page:horizontal, QScrollBar::sub-page:horizontal {
background: none;
}
如果希望两个箭头都在同一个方向， 例如苹果机的界面， 将使用下面的设置模式：
QScrollBar:horizontal {
border: 2px solid green;
background: cyan;
height: 15px;
margin: 0px 40px 0 0px;
}
QScrollBar::handle:horizontal {
background: gray;
min-width: 20px;
}
QScrollBar::add-line:horizontal {
background: blue;
width: 16px;
subcontrol-position: right;
subcontrol-origin: margin;
border: 2px solid black;
}
QScrollBar::sub-line:horizontal {
background: magenta;
width: 16px;
subcontrol-position: top right;
subcontrol-origin: margin;
border: 2px solid black;
position: absolute;
right: 20px;
}
QScrollBar:left-arrow:horizontal, QScrollBar::right-arrow:horizontal {
width: 3px;
height: 3px;
background: pink;
}
QScrollBar::add-page:horizontal, QScrollBar::sub-page:horizontal {
background: none;
}
定制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;
}
定制QSplitter
QSplitter::handle {
image: url(images/splitter.png);
}
QSplitter::handle:horizontal {
height: 2px;
}
QSplitter::handle:vertical {
width: 2px;
}
定制状态条 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;
}
定制 QTabWidget 与QTabBar
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 thatt 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; /* if there is only one tab, we don‘t want overlapping margins */
}
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- "> stop: 0 #FF92BB, stop: 1 white);
}
QTableWidget QTableCornerButton::section {
background: red;
border: 2px outset red;
}
定制工具条
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;
"> stop: 0 #f6f7fa, stop: 1 #dadbde);
}
QToolButton[popupMode="1"] { /* only for MenuButtonPopup */
padding-right: 20px; /* make way for the popup button */
}
QToolButton:pressed {
"> 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 */
}
定制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;
}
下面是几个样式， 当选择颜色的时候可使用十六进制的数据来表达：
QRadioButton{
background:#5F7536;
color:#CBF57D;
font:bold;
}