I currently have a QTabWidget that looks like this.The QtabWidget has a QtableView inside it
I wanted to know how I could change the background color of the QtabWidget. I want to maintain my existing stylesheet for the QtabWidget and only add the blue background in the area marked by the red arrows. In short i want to add a background color under the tabs. I currently have a stylesheet that looks like this
QTAB
QTabWidget
{
/* min-width:5000em;*/
}
QTabWidget::tab-bar
{
left: 5px; /* move to the right by 5px */
}
QTabWidget::pane
{
border-top: 1px solid gray;
border-left: 1px solid gray;
border-right: 1px solid gray;
border-bottom: 1px solid gray;
}
QTabBar::tab
{
background-color: rgb(166, 166, 166);
min-width: 70px;
padding-top : 6px;
padding-bottom : 8px;
color: rgb(255, 255, 255);
font: 10pt "Arial";
}
QTabBar::tab:selected, QTabBar::tab:hover
{
background-color: rgb(127, 127, 127);
}
QTabBar::tab:selected
{
/*border-color: #9B9B9B;*/
}
QTabBar::tab:!selected
{
margin-top: 2px; /* make non-selected tabs look smaller */
}
Any suggestions on how I could add a background color under a tab would be appreciated. Thanks.
You can use stStyleSheet in the constructor:
ui->YOURWIDGET->setStyleSheet("background-color: YOURCOLOR");
In order to make subclass of QWidget works on background color, you need override this function
def paintEvent(self, event):
o = QtGui.QStyleOption()
o.initFrom(self)
p = QtGui.QPainter(self)
self.style().drawPrimitive(QtGui.QStyle.PE_Widget, o, p, self)
Related
the comboBox contains two entries and , when the combobox is clicked, the listview occupies the frame of combobox. I want the list view just below the combobox. stylesheet is as shown below:
QComboBox {
border: 1px solid #8F9EAB;
border-radius: 3px;
font: 16pt "Arial";
min-width: 6em;
color: #1B3067;
background-color: rgb(255, 255, 255);
padding-left:10px;
}
QComboBox:pressed
{
border: 1px solid #1562AD;
color: rgb(255, 255, 255);
background-color: #87A6D5;
}
QComboBox:disabled
{
border: 1px solid #BFBFBF;
color: #BFBFBF;
background-color: rgb(255, 255, 255);
}
QComboBox::down-arrow
{
background-image: url(:/Images/data/img/Images/DOWN_enabled.png);
height: 7px;
width : 13px;
}
QComboBox::drop-down
{
subcontrol-position: top right;
width: 40px;
color: white;
border-left-width: 0px;
border-left-color: #8F9EAB;
border-left-style: solid;
border-top-right-radius: 3px;
border-bottom-right-radius: 3px;
}
QComboBox QListView
{
font: 16pt "Arial";
color: rgb(80, 80, 80);
}
QComboBox QAbstractItemView::item
{
border-bottom: 5px solid white; margin:3px;
}
The position of the view() can not be handled with Qt Style Sheet, you must create a class that inherits from QComboBox and overwrite the showPopup() method as shown below.
class ComboBox: public QComboBox{
public:
using QComboBox::QComboBox;
public:
void showPopup(){
QComboBox::showPopup();
QPoint pos = mapToGlobal(QPoint(0, height()));
view()->parentWidget()->move(pos);
}
};
I want to build a dropdown list control with QPushButton and QMenu like below:
QPushButton* menuBt = new QPushButton("Please select");
menuBt->setFlat(true);
QMenu* menu = new QMenu();
menuBt->setMenu(menu);
QWidgetAction* wa1 = new QWidgetAction(menu);
QLabel* l1 = new QLabel("Option1");
wa1->setDefaultWidget(l1);
menu->addAction(wa1);
QWidgetAction* wa2 = new QWidgetAction(menu);
QLabel* l2 = new QLabel("Option2");
wa2->setDefaultWidget(l2);
menu->addAction(wa2);
menu->setStyleSheet("QMenu::item {font-family: \"Arial\"; font-size: 13pt; color: #808080; border: 1px solid gray; background-color: rgb(234,234,234);}"
"QMenu::item:hover {background-color: rgb(0, 0, 255);}");
menuBt->setStyleSheet("QPushButton {font-family: \"Arial\"; font-size: 13pt; color: #808080; border: 1px solid gray;padding: 1px 18px 1px 3px;min-width: 6em; background-color: rgb(234,234,234);}");
I set the font and hover background color to the menu items by setStyleSheet, but seems it doesn't work.
How make the font and hover background color work on menu items?
Answer:
class QTDropDownButton : public QPushButton
{
Q_OBJECT
public:
QTDropDownButton(QString text, QWidget *parent = nullptr);
void addItem(QString text);
protected slots:
void menuAboutToShow();
private:
QMenu* menu_;
};
QTDropDownButton::QTDropDownButton(QString text, QWidget *parent) :
QPushButton(text, parent)
{
setFlat(true);
menu_ = new QMenu();
setMenu(menu_);
connect(menu_, SIGNAL(aboutToShow()), this, SLOT(menuAboutToShow()));
setStyleSheet("font-family: Arial; font-size: 13pt; color: #808080; border: 1px solid gray; background-color: rgb(234,234,234);");
menu_->setStyleSheet("QMenu::item {font-family: Arial; font-size: 13pt; color: #808080; border: 1px solid gray; background-color: rgb(234,234,234);}"
"QMenu::item:selected {background-color: rgb(0, 255, 255);}"
"QLabel {font-family: Arial; font-size: 13pt;}"
"QLabel:hover {background-color: rgb(0, 0, 255);}");
}
void QTDropDownButton::addItem(QString text)
{
if(!menu_)
return;
QWidgetAction* wa1 = new QWidgetAction(menu_);
QLabel* l1 = new QLabel(text);
wa1->setDefaultWidget(l1);
menu_->addAction(wa1);
}
void QTDropDownButton::menuAboutToShow()
{
if(menu_)
menu_->setFixedWidth(this->width());
}
To set the font-family you don't need to put quotes around the Arial. I believe this prevents your style sheet from parsing correctly.
A side note: at the moment only your menuBt is styled, other buttons will look like default buttons. To change button style for all buttons in the menu, move the style into the setStylesheet() call of the menu like this:
menu->setStyleSheet("QMenu::item {font-family: Arial; font-size: 13pt; color: #808080; border: 1px solid gray; background-color: rgb(234,234,234);}" +
"QMenu::item:hover {background-color: rgb(0, 0, 255);}" +
"QPushButton {font-family: Arial; font-size: 13pt; color: #808080; border: 1px solid gray;padding: 1px 18px 1px 3px;min-width: 6em; background-color: rgb(234,234,234);}");
But if you want only this one button to look different, it is correct to call
setStylesheet() on it, but you can omit the selector, like this:
menuBt->setStyleSheet("font-family: Arial; font-size: 13pt; color: #808080; border: 1px solid gray;padding: 1px 18px 1px 3px;min-width: 6em; background-color: rgb(234,234,234);");
In my app I have several places that use a QWebView and load the content from the server. In addition the app allows the user to select a default or a dark theme. When the content-type of the document to display is text/plain and the application theme is set to dark, the text is displayed as black text on a black background. I can only see the text if I highlight it. text/html documents work well with either theme.
Ideally when the dark theme is selected I want to display white text on a black (or dark gray) background. I have not been able to figured out how to do this.
Here is the code I currently use to set up the theme:
if(Theme == "dark")
{
app.setStyle(QStyleFactory::create("Fusion"));
QPalette darkPalette;
darkPalette.setColor(QPalette::Window, QColor(88,88,88));
darkPalette.setColor(QPalette::WindowText, Qt::white);
darkPalette.setColor(QPalette::Base, QColor(25,25,25));
darkPalette.setColor(QPalette::AlternateBase, QColor(88,88,88));
darkPalette.setColor(QPalette::ToolTipBase, Qt::white);
darkPalette.setColor(QPalette::ToolTipText, Qt::white);
darkPalette.setColor(QPalette::Text, Qt::white);
darkPalette.setColor(QPalette::Button, QColor(53,53,53));
darkPalette.setColor(QPalette::ButtonText, Qt::white);
darkPalette.setColor(QPalette::BrightText, Qt::red);
darkPalette.setColor(QPalette::Link, QColor(42, 130, 218));
darkPalette.setColor(QPalette::Highlight, QColor(150, 200, 255));
darkPalette.setColor(QPalette::HighlightedText, Qt::black);
app.setPalette(darkPalette);
} else {
Theme = "default";
app.setStyle(QStyleFactory::create("Fusion"));
app.setPalette(DefaultPalette);
}
// load the style sheet
QFile file(":/themes/" + Theme + "theme.css");
file.open(QIODevice::ReadOnly);
const QByteArray theme = file.readAll();
app.setStyleSheet(theme);
The default theme style sheet is blank and the dark style sheet is:
QToolTip {
color: #ffffff;
background-color: #2a82da;
border: 1px solid white;
}
QScrollBar:horizontal {
border: 1px solid grey;
background: #606060;
height: 20px;
margin: 0px 20px 0px 20px;
}
QScrollBar::handle:horizontal {
border: 1px solid #909090;
background: #303030;
min-width: 20px;
}
QScrollBar::add-line:horizontal {
border: 1px solid #909090;
background: #303030;
image: url(:/themes/themes/dark/sbright.png);
width: 20px;
subcontrol-position: right;
subcontrol-origin: margin;
}
QScrollBar::sub-line:horizontal {
border: 1px solid grey;
background: #303030;
image: url(:/themes/themes/dark/sbleft.png);
width: 20px;
subcontrol-position: left;
subcontrol-origin: margin;
}
QScrollBar:vertical {
border: 1px solid grey;
background: #606060;
width: 20px;
margin: 20px 0 20px 0;
}
QScrollBar::handle:vertical {
border: 1px solid #909090;
background: #303030;
min-height: 20px;
}
QScrollBar::add-line:vertical {
border: 1px solid #909090;
background: #303030;
image: url(:/themes/themes/dark/sbdown.png);
height: 20px;
subcontrol-position: bottom;
subcontrol-origin: margin;
}
QScrollBar::sub-line:vertical {
border: 1px solid grey;
background: #303030;
image: url(:/themes/themes/dark/sbup.png);
height: 20px;
subcontrol-position: top;
subcontrol-origin: margin;
}
I would like to display table in Qt with specific style. I want to draw all grid lines with same color and same width.
Problem is, that it is hard to style QHeaderView. All the time, I get 2px grid width or no grid at all.
I Have folowing window with one QTableWIdget
and asociated styleSheet
QWidget {
background-color: #333333;
color: #fffff8;
}
QHeaderView::section {
background-color: #646464;
padding: 4px;
border: 1px solid #fffff8;
font-size: 14pt;
}
QTableWidget {
gridline-color: #fffff8;
font-size: 12pt;
}
QTableWidget QTableCornerButton::section {
background-color: #646464;
border: 1px solid #fffff8;
}
Are there any tricks to have all grid lines 1px width? I'm using 4.8.5 and I can't upgrade to version 5.x.
The trick is border-style: none; in QHeaderView::section after witch border-left, border-right, border-top and border-bottom starts working. Correct style for QHeaderView::section should be
QHeaderView::section {
background-color: #646464;
padding: 4px;
font-size: 14pt;
border-style: none;
border-bottom: 1px solid #fffff8;
border-right: 1px solid #fffff8;
}
QHeaderView::section:horizontal
{
border-top: 1px solid #fffff8;
}
QHeaderView::section:vertical
{
border-left: 1px solid #fffff8;
}
I think what you did is you added additional border for section cells, and the section properties should look like that ( although I did not try this solution )
QHeaderView::section {
background-color: #646464;
padding: 4px;
border: 0px;
font-size: 14pt;
}
For more information how to style your headers, see:
http://pastebin.com/svReqHr3
HowTo draw correct CSS border in header?
I currently have something like this in my QtableView stylesheet
QTableView::item
{
selection-background-color: rgb(85, 85, 127);
border-bottom: 1px double #8f8f91;
}
Now the problem is the selection-background-color: rgb(85, 85, 127); takes effct only if border-bottom: 1px double #8f8f91; is disabled. Any suggestions ??
You should specify any border attribute if you want suck customization. Is't specific of QSS:
border: 0px solid transparent; // Or any other border