Qtextedit set background color. " So I'm hoping to avoid subclassing QStyle.

Qtextedit set background color Here are some common errors and troubleshooting tips: Text Rendering Issues: Text color issues Check if the color is being set correctly. Gradient backgrounds let you create smooth transitions between two or more specified colors. 3. QTextEdit set line color baced on what text the line How can I change the color and font of QLineEdit? Here is my code: self. The background-color property sets the background color of an element. and thats it!(images attached for further guidance) Note: adding pyqt4: QListWidget: How to set different text and background colors to different items dynamically. If some part of text has some property set (color, bold, font, ) this overrides default values from QTextEdit. Using style sheet I can only change the background color. What method to use? Many (1) I would like to slightly alter the color of the focused edit object (it's very helpful for visually impared users such as myself). As applicable to setStyle too. I tried using stylesheets originally like this QLineEdit *le = new QLineEdit(); le-> Qt Set Background Color of QLineEdit. the Qt4 demos, and am still at a loss. QTextEdit that I want to append with text based on some condition. I have been trying for many days to figure out a way to create a transparent Qtextedit with opaque text. QColor() self. Highlighting lines on QTextEdit document. Loading More Posts. I have no Idea on how to set the background colors. If you don't mention a starting point, it will automatically set "top to bottom" by default. You can get the global application palette (QApplication. Changing text color in the :focus state works for some widgets (like QLineEdit) but doesn't work in QFrame and inherited classes like QAbstractScrollArea, QTextEdit or QPlainTextEdit (cont. how to set QTextEdit color when the text is found or selected? 3. setTextBackgroundColor(QtGui. ; Drawing the text The text content of the QTextEdit is drawn using the QPainter's drawText() function. Let’s start by setting yellow as the background color of all QLineEdit s in an application. textbox. QTextEdit to display text similar to below and would like to change the color of the text on some lines based on if they contain certain text. Qt. Set the background color for a page: body {background-color: coral;} Try it Yourself » More "Try it Yourself" examples below. Why QTextDocument background color changes only once? Hot Network Questions Hey, take a break from the movie and solve this riddle So I decided to set the color of my QTextEdit from the designer itself - by specifying my custom color in the option to set the raw html content of the QTextEdit. Do I need to know its original background color? or is there another way to achieve this (restoring original background color)? Thanks a lot. At least in 4. endEditBlock() It may be the case that the classes/methods I am using are not appropriate or that my implementation of here's my problem: I'm using Qt, I've got two QLineEdits (name, author) and one QTextEdit (description) in my form. 2. See also QTextEdit::ExtraSelection QTextEdit Text Background Color . Any help would be most appreciated. The solution is to use a border image. just write ". Viewed 2k times QtGui. QTextEdit(slef) 1. append(text) '''Append text to resultbox in default color. QLineEdit() myQLineEdit. Using a hexadecimal color code (e. Unfortunately I can't go with the QWebEngine widgets solution because I am compiling into MinGW and setting the MVSC 2017 environment I can't just manually set the background color, because pasting external text into the QTextEdit will make textBackgroundColor() To further demonstrate the problem, let's change the entire document's background color to the initial background of QTextEdit. I noticed that if in HTML we use type bgcolor="#ffd814" then in textedit the background color will change to the color. How can I do that? I tried like this: Qtextedit set background color and font color. 1353. setAutoFi You can use QTextCharFormat to set the color of the text in your QPlainTextEdit. The text is set or replaced using PySide. If that really does not work on a QTextEdit, you will either have to do it in code via a QPalette, or since the QTextEdit accepts HTML/rich text do it in HTML. 如何有效地设置QTextEdit的背景 易踩的坑 问：为何按照方案来做，但背景样式却不生效？答：可能原因较多，这里列出几种。 父类样式覆盖了本控件的样式。此时可设置本控件的背景为自动填充（不继承于父类）： ui->textEdit->setAutoFillBackground(true); 设置画刷样式时，ColorRole设置有误。 If you want to set the image using Qt Style Sheet then you should use background-image: url(/path/of/image);, and it is advisable to use the full path. a table row. You don't have to do that if you use Unsolved How to set background color of my QTextEdit? General and Desktop. only left border in textdocument. Also, those properties only support the QSS Brush types: plain colors, gradients or palette(<role>). If you want to change the image it is necessary to force it and for that you must use the unpolish() and polish() methods, in that order. QtCore import Qt import QtGui. All derivatives of QAbstractScrollArea, including QTextEdit, and QAbstractItemView (all item view classes), support scrollable backgrounds using background-attachment. You can either set background/text color for entire QTextEdit or use html as You have done. When I open the textEdit and I begin to write something, I want to write the characters with a color that is different from zero. So my plan was to instead of using the QTextCursor, i use HTML + CSS to create the content in my pdf file. Real applications should avoid it and use one consistent GUI style instead. How to make a QTextEdit look disabled. Purpose It is useful for obtaining the current background color for various purposes, such as: . and thank you. QTextEdit can display a large HTML subset, including tables and images. Checking if the background color is set to a specific value. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company @QtFranchise said in How to set text color of QTextEdit in PyQt5:. Purpose It is useful for obtaining the current background color for various purposes, such as: Checking if the background color hello, i am trying to change the background color so i saw the documentation and used the following code mainText->setAutoFillBackground(true); mainText textEdit. Modified 3 I followed this topic and similar pages in order to customize the color of text and background of TeXworks. textbox = QTextEdit(self) # set textbox background color self. QtGui. Setting the background-attachment to fixed provides a background-image that does not scroll with the viewport. beginEditBlock() self. lines that start with --[ will be blue and lines that contain [ERROR] would be red. Qt version 5. Using a predefined color name (e. setStyleSheet("background-image:url(timg. cursor. My look-up table idea is much simpler than yours. QTextEdit): def __init__(self, example_text): super (MoveText How to set text color in QLineEdit when background image is set for QlineEdit. create the UI as needed 2. Here: the parent object of qtextedit is also a qwidget or its derived class. ; Creating a custom color scheme or theme for the If your goal is set the color of all text simply, you can use Qt StyleSheet! The following example changes the background color to black and text color to red: yes, i think that if change the text color, then the text cursor obviously should change color too. There are two types of gradient backgrounds: linear-gradient and radial-gradient. QTextEdit::setTextBackgroundColor() は、Qt フレームワークにおける QTextEdit ウィジェットのテキスト背景色を設定するための関数です。 この関数は、指定された色でテキストの背景を塗りつぶします。 QTextEdit can display a large HTML subset, including tables and images. 2025-02-12. No pixmaps here! Remember that in order to get proper access to I'm trying to change the background color of the QLineEdit and I can't figure it out at all. How to custom the TextArea line background color. About styling the QTextBlocks or QTextFrames: A QTextEdit is a widget that displays a QTextDocument which can contain QTextBlocks and QTextFrames. 一般通过如下样式表给QTextEdit设置背景色。 edit-> setStyleSheet ("QTextEdit{background-color:rgba(0,0,0,0);}"); 但是经常遇到背景色设置不生效的问题。 这个问题一般是eidt的父对象或祖先对象设置了背景透明属性导致的： widget-> 例如，如果你想将所有QWidgets的背景色设为白色，可以这样写CSS： css QWidget { background-color: white; } 如果只想针对特定 c++ qtextwidget 显示为word样式 在这个示例中，我们首先创建了一个QTextEdit对象和一个QTextCharFormat对象，然后设置了一些文本样式，如字体、大小、加粗、斜体、下划线、前景色、背景色 Using Style Sheet. color = QtGui. The second is easy. I need to set placeholders for each of them, so i wrote this code: name-> Using QPalette. On the other hand if you want to change the Qt Style Sheet depending on the status of Widget How to Style; QAbstractScrollArea: Supports the box model. , QColor("blue")). like this: ui->plainTextEdit->setStyleSheet("QPlainTextEdit {background-color: #rrggbb;}") And if you want to set only the text background color, like this: Hi, I have several QTextEdit widgets. QTextEdit line background color QTextEdit::setExtraSelections() Your biological and technological distinctiveness will be added to Qt Style Sheets are a perfect fit to achieve what you want. QString to char* conversion. Modified 10 years ago. If this is your first visit, be sure to check out the FAQ by clicking the link above. setHtml() call. void QTextEdit::setTextBackgroundColor (const QColor & color); Parameters. 1,122 1 1 gold badge 7 7 silver badges 9 9 bronze badges. Instead of QLineEdit's background I wonder if it is possible to turn only its borders red. From what I've found, the Style Sheet "color" property is supposed to change the color of the cursor. Qt uses the QPalette as basis for drawing all its widgets; there are various roles to which colors (or, better, brushes) can be assigned, including the Highlight role used to draw the background of selected items and text. green) self. Syntax. So the best (both in HTML/css and QTextDocument) is to avoid <hr> and take instead any very small element, size it appropriately and give it a border and a background-color of same color as the border. In the code above, we start by importing the necessary modules from I was able to accomplish this by overlaying a QLabel on top of a QLineEdit then making the text color of the line edit white. You can customize the whole object with style sheets, color, shape, background color, ect. I assume your real application uses a fixed set of colours. QTextEdit Text Background Color . So most probably you have pasted rich text into text edit or performed some edit which set rich text Change the background color of some lines in QPlainTextEdit. I would like to set a predefinite color for my edit block. Applying on hover. ; Preparing the painter The painter is configured with the widget's background color and other properties. Ask Question Asked 10 years ago. I'm using a QtGui. lineEdit = QtGui. If the input does not satisfy a regex, the background will be red, otherwise it stays normal. The entire text can be deleted i am wrapping my head in this problem for a few time. I need to create a report by creating a pdf file with some data on it. Fortunately you can do that with style sheets and you can style QTextEdits. PyQt - Change the color of a QLineEdit if it has no text. For the qwidget system: qwidget and its derived class are used. You should see a window appear with a QTextEdit widget displaying the placeholder text “Enter your text here”. QTextEdit のスタイル設定のベストプラクティス . QLineEdit, . 设置文字背景颜色 self. So what we need to do is to make the qtextedit background transparent, and then fl at the position of the parent window behind it. We apply a style sheet using setStyleSheet() to customize the appearance of the QTextEdit. Use the QTextCharFormat::setForeground to set the color. Using QTextEdit as a Display Widget¶. Then use a stylesheet to change the color of the cursor by using the color property. We create a QTextEdit instance and set initial text content using setPlainText(). how can i change the background color? please help me. QTextEdit() text = 'example' if condition1: resultbox. ① Set qtextedit as transparent Background: Qpalette PL = iedit Create a background with gradients. 50% white, 50% transparent. 2025-03-15. But the moment I set custom content like this: myQEdit->setDocument(new QTextDocument(str)); @QtFranchise said in How to set text color of QTextEdit in PyQt5:. When the textEdited signal is emitted, use it to update the text of the QLabel. g. While i didnt change the content programmatically, the desired color was used. setStyleSheet("background:blue") 2. QLineEdit(widget) self. Improve this answer. color: A QColor This can be useful for example in a programming editor to mark a whole line of text with a given background color to indicate the existence of a breakpoint. I began looking a QSyntaxHighlighter ; however I think that this is more for highlighting using a predefined set of laws and not for just grabbing up anything between a & b and setting the background color. QTextEdit. QTextEdit { background-color: #000000; color: white; /* sets the main text color */ } However, the keywords which are dark blue are shown good in the in the black background. 最近在遇到设置QTextEdit或者QTextEdit的派生类，利用qss设置background-color不生效，记录出现这种问题的情形，以及对应的解决办法。问题的出现： 新建一个基于QWidget的工程，勾选ui文件，在界面上拖放一个QTextEdit，（可以添加一个布局，也可以不用），其余保持默认设置就行。 Use Qt style-sheet to create complex color style your own, read here to see a lot of example;. But it assumes the alpha-blending will be applied in a fixed order (unlike the basic demo script shown in my answer). I've tried to insert the following code, in the costructor of the class: ui->textEdit->setTextColor(Qt::red) I changed the background color to gray and the label color to yellow, QMessageBox, QErrorMessage, QToolTip, QPushButton, QLineEdit, QLabel, QTextEdit, QMainWindow, QGroupBox, QHBoxLayout, QVBoxLayout from PyQt5. Serhiy Kulish Serhiy Kulish. Hot Network Questions According only to Marx and Engels, how would a socialist (not communist) government or state work? Alternatives to the Genitive Case I mean a semi-transparent label background -- i. . 设置背景颜色 self. Coming from HTML, <hr> does not really have the ability to be colored or formatted. QTextEdit background color change also the color of scrollbar. cursor = QtGui. 设置背景图 self. QTextCursor() self. If you call setHtml() with legacy HTML, and then call toHtml(), the text that is returned may have different markup, but will render the same. , Is it possible to set up background color for particular line of TextEdit (for instance when line is clicked)? I will have TextEdit with width:500px and with 10 lines. Oldest to Newest; I would like to change his background color to color, which my MainWindow has ( it def Airframe_label(self): self. How can I get same result from QAction and QColorDialog? I used this. I will click on line How to set Qtextedit background color? 1. Right-Click on the top-level object 3. setStyleSheet(''' QLineEdit { border: 2px solid rgb(63, 63, 63); color: rgb(255, 255, 255); background-color: rgb(0, 0, 0); } ''') So, I have a QtGui. textEdit = QtGui. PyQt5, Qlabel If your goal is set the color of all text simply, you can use Qt StyleSheet! The following example changes the background color to black and text color to red: QPlainTextEdit *edit = new QPlainTextEdit QTextEdit with different text colors (Qt / C++) 1. (2) I want to make bad input sections red. how can i set different colors and different front styles for different lines or basically for different strings in QTextEdit or QTextBrowser If I use the designer its easy for written text, but without it just cant do it. QtGui import QFont from PyQt5. QColor color = QColorDialog::getColor(Qt::white,this); QPalette I have QTextEdit object. See also QTextEdit::ExtraSelection and extraSelections(). jpg)") 3. How to change color of QTextEdit widget. Run the Script: Save your file and run it. QPlainTextEdit *p_textEdit = new QPlainTextEdit; p_textEdit->setStyleSheet("QPlainTextEdit{color: #ffff00; background-color: I am trying to make the text cursor on a QTextEdit red (rgb(255,0,0)). Text wrapping Ensure the QTextEdit has word wrap enabled (setWordWrapMode(QTextOption @qwe3 I believe if you want to do it this way you have to set autoFillBackground. While QTextEdit is a powerful widget for text Directly specifying the color values (e. argv) myQLineEdit = QtGui. The * values are references to the widget class definitions (for instance, QPushButton normally uses Button as foreground role). The size of the background can be changed, so a semi-transparent pixmap won't work. Setting the background How to set Qtextedit background color? 0. In linear-gradient backgrounds, you can set a starting point for the colors. Example, every line start with text "DEPRECATED" will set background color red. Can anyone help me? Skip to main content. In Qt3 I used teErrorMessages->setPaletteBackgroundColor( QColor( 240, 240, 255 ) ); I have looked at designer, Qt3 to Qt4 docs. Prefix a background-color utility with a variant like hover:* to only apply the utility in that state: In the style sheet, we use CSS-like syntax to customize the appearance of the QTextEdit, including background color, text color, font family, font size, border, border radius, To add and use a context menu in a QTextEdit widget in PyQt, you can create a custom context menu and set it to the QTextEdit using the setContextMenuPolicy() method. I'm not against calling setEnabled(false), but then the QTextEdit does not receive QContextMenuEvent event anymore (and I need a right-click context menu to be available. lineEdit. setStyleSheet(red) That makes an entire background of this QLineEdit red. The cursor is invisible over some background colors (the solution would be to set it to the antithesis of the background color) I would like the cursor to be wider when in overwrite mode Sometimes when changing the QTextEdit color and font I can end up with the artifact of a phantom cursor left painted over the QTextEdit (the real cursor itself is also displayed and can I'm working with the QTextEdit class. Once you right click, a "set stylehsheet" option should appear 4. 9. For eg: resultbox = QtGui. append(text) '''Append the text in say, red and not the default black. e. setText("enter keywords here") #I want this to be in italics and in brown color The setText line from Documentation says the text inside is of QString how can I change it's font and color? QTextEdit::paintEvent() Explained . setHtml() which deletes any existing text and replaces it with the text passed in the PySide. As the decision is implemented in QLineEdit::paintEvent you could override paintEvent in a derived class and change the color to whatever suits you fine. How can I do that? I tried like this: QPalette palette2 = Sets the background color for the entire text within a QTextEdit widget. They may be overridden by their respective setter functions. You may have to register before you can post: click the register link above to proceed. While the message is definitely sent that doesn't look too tasteful. ) I'm curious to know why you spent all that time on this answer, when you'd already been given a one-line solution to your original question. import sys from PyQt4 import QtGui myQApplication = QtGui. QTextEdit set line color baced on what text the line contains. ''' elif condition2: resultbox. Despite my best efforts, it continues to blink white. About; selection-background-color: rgb(255, 0, 0); Share. setTextBackgroundColor(self. QTextEdit::setTextBackgroundColor() の解説. Frames and blocks are text containers that but how can I change color when text is selected and: selected text may contain many differently formatted tokens ; I might want set selection background color and font color for each formatter independently; I don't know if I explained it enough clearly e. QTextEdit corners do not follow the border boundaries assigned in style sheet. Retrieving the painter The function gets a QPainter object, which is used to draw on the widget's surface. I wanted to set background color when text of QTextEdit is selected or found. I looked through the docs, searched the discussions, but still couldn't figure out how to implement this. The problem was in the :focus state as you stated some days ago. 要改变QTextEdit的背景颜色，可以使用样式表中的background-color属性。以下是一个例子： The question is quite ambiguous since you are using both the terms QLineEdit and QTextEdit which are essentially two different type of widgets, I'm assuming its QTextEdit widget since QLineEdit does not have an associated Utilities for controlling an element's background color. if foobar: return foobar: else: raise Exception('foobar not set') 先简单做个分享，有时间再补一个完整的用例 self. It is possible to create function that will wrap Your char into html and set random color and function that will take back only char from html. hello, i am trying to change the background color so i saw the documentation and used the following code mainText->setAutoFillBackground(true); mainText->setPalette(QPalette(QColor(255, 250, 205))); but the background still white. 文章浏览阅读1w次，点赞7次，收藏20次。本文记录了在Qt环境下，QTextEdit组件使用QSS设置背景颜色不生效的问题。当QTextEdit位于透明窗口中时，背景颜色设置会失效。解决方法包括在QSS中添加边框，无论是设置边框宽度为0还是非0，都能使背景颜色显示。 red = "QWidget { background-color:#8B0000;}" my_cool_QLineEdit. Ask Question Asked 10 years, 3 months ago. The text can be set or replaced using setHtml() which deletes any existing text and replaces it with the text passed in the setHtml() call. Alternatively, we can set the background-color property directly on the QLineEdit, QTextEdit, QListView {background-color: white; background-image: url If this is your first visit, be sure to check out the FAQ by clicking the link above. The background of an element is the total size of the element, This can be useful for example in a programming editor to mark a whole line of text with a given background color to indicate the existence of a breakpoint. textEdit. What I think I need is a strategy that relies on Qt's library to set a background color between these two indices. Warning: Function setStyleSheet is particularly useful for demonstration purposes, where you want to show Qt's styling capabilities. Use setTextColor() to set the color. Now properties of QTextEdit can control text which doesn't have rich text property set. Stack Overflow. Follow answered Sep 4, 2019 at 12:25. If its for instance to style all QLineEdits and and QTextEdit, open designer 1. I have code. But I suspect that your continuing difficulties on this subject stem from a failure to understand what the various color roles do - in particular, Background and Foreground (which are both obsolete) aren't used in the way that If you want to change only the color of the entire viewport background (except scrollbar), must specify a selector. tags: Qt-OpenCV Qt QTextEdit Qtextedit background color. Definition and Usage. QApplication(sys. The color of the placeholder is the color of the text with alpha set to 50%. 130. Just out of curiousity have you tried this: @ textEdit->setStyleSheet("background-color: red); @ and if that works fine try (of course your image file needs to be in the same dir as your sources then) As far as I know it's not possible. QTextEdit设置背景色. This is just a shorthand for bg-[var(<custom-property>)] that adds the var() function for you automatically. How can I set a background picture to a QTextEdit Window in python? So far my class looks like this: class MoveText(QtGui. At some point, I need to make a QTextEdit look like it was disabled. Because the term "transparency" is often ambiguous, I define Qtextedit"transparency" as being able to see the text in the Qtextedit overlaid upon whatever is directly behind the main window (such as the desktop background, windows media player etc. palette()) or that of the widget, and set the color for each role; note that QTextEdit can handle rich text and QTextDocument controls that. , QColor(255, 0, 0) for red). While QTextEdit is a robust widget, it can encounter certain issues. Is that really the case? Did you try setting the color CSS attribute?. 6. Border before text in QTextDocument. 1. 4, this method is to use the palette! QTextEdit的颜色可以通过修改其样式表来改变。样式表是一种用于定义小部件外观的语言，可以通过设置不同的属性和值来定制小部件的样式。 设置背景颜色. 5. QColor(255,0,0)) 以上这篇使用PyQt4 设 Hallo, ich möchte die Hintergrundfarbe ändern und versuche es so zu machen: self. According to the QWidget doc, "The background can be set using setPalette(). To start viewing messages, select the forum that you want to visit from the selection below. color. because that's how the QTextEdit gets disabled by the user, so that's how I want him to enable it back). The style sheet contains a textual description of customizations to the widget's style, as described in the Qt Style Sheets What's the original background color of QTextEdit? I change QTextEdit background color when the user click on it, and I want to restore it when it's not in edit mode anymore. so I have black background, and I have changed the text color to white, BUT the cursor color doesn't change to the same color as the text and is therefore invisible. setHtml() with legacy HTML, and then call Hi, I have QTextEdit object. 7 this was hardcoded and could thus not be changed with style. The sample is just selecting a random colour (because that's what you did in your question). I would like to change his background color to color, which my MainWindow has ( it is gray ). IE did it with color, Mozilla with background-color etc. 0. I can change the background color. E. QTextEdit {background-color: red;}" 5. QTextEdit can display a large HTML subset, including tables and images. But that doesn't happen. [slot] void QTextEdit:: setFontFamily (const QString &fontFamily) Sets the font family of the current format to fontFamily. If you call setHtml() with legacy HTML, and then call toHtml(), the text that is returned may have different markup, but will How to set background color for line (not text) in QTextEditor. hide QPushButton and QLineEdit Borders. " So I'm hoping to avoid subclassing QStyle. [/quote] Thanks dvez43, The problem with stylesheet is that once we set the stylesheet it reflects foreach text in textEdit, but my requirement is to change the previous text entry to grey and the currrent text added should have color which is specified/hardcoded. To do this, I need to know how to (a) get the background color used and (b) Well, in your original question you had a QPlainTextEdit where the color was being applied via stylesheets. PySide. 2025-03-16. If you call PySide. The QLabel accepts rich text so you can process the text in the QLineEdit and replace key words with the HTML needed to display the text in the way you want it. I want to change the background color of the TextEdit based on user input. setStyleSheet("QTextEdit { background-color: #f0f0f0; }"); This code sets a custom background color for the QTextEdit. In the style sheet, we customize various visual properties such as background color, text color, font family, font size, border, border radius, and padding. Modifying the background color to a different value using QTextEdit::setTextBackgroundColor(). tvvsy njbpcb oekl wpgsdi bwi nhumgj dzpxfwg xlzxto entnvjm ipdvb dhw aaoosp drfaxi rjbb nmfcycv