Qlabel auto resize app. ru/xb2xlx/telegram-stl-miniaturas.

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Qlabel auto resize app. , top-level widgets). left Jan 5, 2023 · While making a window, we get options like going full screen and using cursor to change its size. In my actual code I gave up and just used a QPushbutton to rezise the QPixmap manually when I resize the window. show(); return app. Click the "Resize Image" button to resize the image. It appears to "tear" or repeat pixels horizontally and/or vertically. Aug 16, 2010 · 464. I know to accomplish this I need to create my own label inheriting from QLabel, I have done that but don't know what to do now, Please help me, It's important. I show all the steps to do it in this tutorial: I'm trying to get an image to fit my label entirely without using setScaledContents(True) since I'd like my ImageGrab to have the exact same dimensions as the QLabel space. label = QLabel() Normal QLabel auto adjust height according to content with layout. setPixmap(pixmap) lbl. adjustSize() to resize the label to fit the new content. 5. pixmap. resize(800, 600) sys. To comment on Jens answer: On the mac, click on the top-level widget (not necessarily named "centralWidget") then click on "Form" in the menu bar and select one of the layouts. Jun 6, 2020 · Calling adjustSize, "adjusts the size of the widget to fit its contents. top; anchors. Set the Qt::AA_NativeWindows attribute on your application. Syntax : label. setGeometry(gameWidth, gameHeight) <-- I want to set size of gameWidget such like this. – rbaleksandar Dec 23, 2016 at 7:07 One of the widgets is a QLabel with word wrap set to true. I can resize the window to smaller, completely breaking the layout, as QTextEdit still retains its size constrain: Sep 27, 2019 · So today we teach how to hide components. Feb 8, 2020 · In this example I'm inheriting from QLabel, but if you don't need all the features that class provides, using a standard QWidget is enough (but you may need to add methods for setting the pixmap and the alignment). py. – hnasarat. No software to install and easy to use. join("data", "images", image_name)) self. You should never directly edit these modules - they should imported into your main application. label = QLabel() # no need for this. click here if you have an issue at step 3. from PIL import Image. isEmpty(): The important ones are 2 labels, which I use for drawing images to the screen. As the window resizes, the label also resizes correctly, but its pixmap does not repaint properly. That is, place Label on dialog form. By using setFixedSize () method we can prevent the resizing of the image. My code: Feb 20, 2019 · I would like to resize these images according to the changing window size. , a button click), you can connect a slot that updates the content and then calls adjustSize(): May 15, 2011 · Image Viewer Example. label. class Ui_MainWindow(object): def setupUi(self, MainWindow): MainWindow. 6 a higher level stylesheet set in the creator had no affect on component QLabel, until I added setStyleSheet("") for the individual QLabel. TextWrapAnywhere QLabel. addWidget(top_left_label, 0, 0) layout. Width to be set. Make the label width equal to the height of the HTML control. QtWidgets import *. How to resize pixmap in Qt? 1. show() sys. 6. addWidget(button_2, 4, 4, 2, 2) layout. pixmap) # this ensures the label can also re-size downwards. self. The user changes the VideoMode to 640x480, the label, and the entire GUI resizes perfectly. How to make Text font size to be adjusted depending on parent width & height? Here is code snippet: @ Item { width: 200 // that value will vary height: 100 // that value will vary Text { id: label anchors. columns - 1) Finally, considering that the grid will probably need to be in a separate class anyway, you can override the resize event of the main widget, and then set the geometries of the overlayed widgets Dec 15, 2015 · You can also do. As you can see, the image is inserted, but the image is kept at its original size, cropped to the boundaries of the QLabel box. I have a QLabel inside a QFrame. globalPos()) == copyAction: Sep 14, 2019 · The desired behavior when dragging the window size horizontally is for the text to scale in size until it would cause the window to change in vertical dimension, and at that point, not change the font size anymore. The problem is when I try to create a new QLabel with new QLabel(this), the application pretty much freezes. #ifndef MAINWINDOW_H #define MAINWINDOW_H #include <QMainWindow> #include <QLabel> class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QWidget *parent = 0); ~MainWindow(); private: QLabel m_QLabel_choose_interval; }; #endif // MAINWINDOW_H Jul 22, 2021 · To scale the image down as you wanted and keep the ratio between the two elements, you need to set setScaledContents(True) like this: from PyQt5 import QtCore, QtGui, QtWidgets. scaled(32, 32, Qt::IgnoreAspectRatio, Qt::FastTransformation)); The important parameter is the last one, transformMode, which tells whether bilinear filtering is used or not. May 19, 2021 · layout. 1 by clicking on the top level "centralWidget Nov 20, 2021 · 1. __init__() self. If someday you flip the autoFillBackground flag or a future theme adds some background to the widgets, it will paint over whatever you draw. show() window. QMainWindow. Then we tested the button to show the original when the button was pressed. Jun 26, 2014 · from PySide. 0. C++ (Cpp) QLabel::resize - 已找到30个示例。这些是从开源项目中提取的最受好评的QLabel::resize现实C++ (Cpp)示例。您可以评价示例，以帮助我们提高示例质量。 QLabel is used for displaying text or an image. Edit: In the new code example below, I think the problem is the width of the QPushButton, which is calculated too Apr 23, 2017 · window = Window() window. QPixmap p; // load pixmap // get label dimensions. setPixmap(*new QPixmap(100,200)); w. In a shell, you would do something like: $ export QT_AUTO_SCREEN_SCALE_FACTOR=1. This code works okay in resizing the image, but the label doesn't cover the whole window, I have those "borders". path. Even the Menu drop down bar does not work anymore. The PyQt5. Jul 28, 2020 · The solution is to use setFixedSize instead, which will ensure that the layout takes care of the correct alignment once it has been notified about the new fixed size (which does not happen when you use resize ). Finally, close the app's window to terminate the current session. Right-Click on label and go to "Promote to": 3. The position of the tab bar is controlled using the ::tab-bar subcontrol. update() #call your update method QtWidgets. Oct 18, 2023 · Qt5 Widgets. Jan 6, 2016 · 1. It has made QLabel quite big by default. Jun 26, 2020 · The best way to make an auto-width label is: Place an HTML control on the canvas with the same font, font size and font weight. It works fine when you make the window larger. & save it as ui_main. You need to resize the QLabel to be able to see the entire image. QLabel is used for displaying text or an image. The problem I am having is that I am not able to Update the QLabel/QPixmap to display a different random dice image when the 'Roll' button is clicked. Changing the size of a Qpixmap. resize extracted from open source projects. exec_()) It works as expected, producing a window, which cannot be resized to be smaller: However, when I uncomment the self. pixmap() if not pixmap. pixmap = QtGui. 101. After I got the font size management working, I intended to consider resize events also. Nov 6, 2014 · Anchors is not enough. At present, using resizeEvent() in my case does not shrink the images according to the resize function. * Returns false if image loading failed. This is a tutorial series where we will Jul 26, 2018 · The label should resize INDEPENDENT, again INDEPENDENT from its content. how to modify pixels of QBitmap. Apr 10, 2014 · @chrisaverage said:. Hmm, QLabel should update it's size hint to correspond new contents when setting text/pixmap/. I set the font size with: font-size:36pt; Nov 5, 2009 · How would I make the size of my QDialog adjust automatically like a QMessageBox? Presently my QDialog contains a button box and a label, and the QDialog is layout Vertical. Select Form > View Python Code. The positioning of the content within the QLabel widget area can be tuned with setAlignment () and setIndent (). 2. isNull(): menu = QMenu() copyAction = menu. Below is what I have so far with a bunch of print statements to figure out sizes but for some reason, nothing matched the size of Sep 16, 2016 · 3. At the end you call QWidget::paintEvent(). A QLabel can contain any of the following content types: Content. 2. 3. But the Problem is when height is considered self. Aug 5, 2019 · @CugureanuChiril Surely you've already answered your own question: use layouts. Word wrap is a likely bonus. Setting the pixmap of a QLabel in QT framework. How do you resize a pixmap in pyqt5? lbl = QLabel(self) pixmap = QPixmap('weekend. label ->setPixmap (p. setMinimumSize(1, 1) # get resize events for the label. It will also have the same size. You can use sizeHint() but not as stated in the other answers. Shrinking the main window: label shrinks with constant ratio (640/512) till minimum size (320 x 256) Expanding the main window: label expands with constant ratio (640/512) till maximum size (1280 x Jul 17, 2013 · 21. class CopiableLabel(QLabel): def contextMenuEvent(self, event): pixmap = self. Output: After pressing the button: Our button is appeared! So, if you are familiar with hide () or show (), you are free to Sep 27, 2020 · In this part[12] we are going to add window resize events using QSizeGrip in python, Qt Designer, Pyqt5, and Pyside2. exit(app. Pixmap is not shown to reduce it to simplest test. Don’t play the waiting game anymore! Convert, optimize, crop, and resize images online in only one easy click. Click on the "Select Image" button to select an image. May 4, 2020 · I have a one QLabel which contain one QPixmap image, I want to make this label resizable so that the user can resized it. Btw. The maximum width and height of the QLabel is 16777215, the vertical size policy is set to Expanding and the horizontal is Preferred. A qss file is quite similar to a CSS file, but you need to specify the Widget component and optionally the name of the object: QLabel { background-color: red; } QLabel#title { font-size: 20px; } The first style defines a background-color for all QLabel Apr 25, 2015 · I need a Qt widget that displays plain text that scales automatically. In this part of the Qt5 C++ programming tutorial, we talk about some basic Qt5 widgets. Sometimes I have too much text in the QLabel and it resizes the QFrame where it is in. Output: We can see that one button is missing which we hide it. setScaledContents(1) The "1" sets the "setScaledContents" to true which scales the image to fit the current size of Qlabel at all times. Note: Since v0. class Editor(QTextEdit): def __init__(self): Nov 13, 2023 · Great! It's time for a test! Go ahead and run your application. QtWidgets package library is used in both examples to create and manipulate the QLabel widget. Now, I want to prevent the QLabel from resizing the QFrame where it resides in. Jun 8, 2013 · Hi I am trying to put a new Qlabel with new Pixmap on screen when the Window is resized. I don't want to limit the amount of lines or setting the maximum size of the QLabel because if the window size of the app increases, I do want May 1, 2011 · QLabel Automatically resize QT. QLabel is typically used for displaying text, but it can also display an image. Let's say you have a main window mainWindow and a widget inside it called content. The advantage of this approach is that vector graphics and fonts scale automatically and existing applications tend to work unmodified. resize - 27 examples found. QtWidgets. h. ", however I have a QLabel, I set the font size in CSS before calling adjustSize, it does not take into account the font size and the geometry is not large enough to accommodate a larger font. Python QLabel. . minimumSize() if s. These are the top rated real world Python examples of PyQt5. It’s recommended to create a full new Qt style to cover all the possible corner cases. You can rate examples to help us improve the quality of examples. Based on my previous answer and implemented the following logic, I have also created the clicked signal that carries the information of the pressed page and the position of the click on the page: Mar 15, 2019 · You have to use a layout so that the QLabel automatically adjusts the width of the QLabel in addition to setting the wordWrap property of QLabel to True: A QLabel is often used as a label for an interactive widget. setFixedSize (width, height) Argument : It takes two integer as argument i. If you are doing something custom, you could override QLabel::sizeHint () and return appropriate size for the widget (or maybe just set minimumSize). PyQt5 - 如何改变标签的大小 | label. Changing font size of all QLabel objects PyQt5. PyQt5 – 如何自动调整标签的大小|调整QLabel的大小. Call QWidget::winId to enforce a native window (this implies 3). 8 /QT Creator 4. Feb 14, 2016 · Hello, i have an image and i want to display it but i don't want to fix the size of a QLabel, i want the QPixmap to be adjusted automatically with the QLabel and the QLabel also be adjusted dynamically according to the size of the window, i. 1. Following doesn't work. e width and height. The size policy of a QLabel is always Preferred (in both directions), and if word wrapping or rich text is used, the text layout engine will try to find an optimal width based on the contents. This brings up dialog where you can type the text as you want to see including enter key. sizeHint Feb 18, 2016 · and then after calling label2->setVisible (false) This is the result I want when using 3 labels. and select an image file to insert. Googling a little bit, I found the solution to apply event filters. It doesn’t get easier than that! Click here to upload your image. Sep 20, 2022 · I found a few workarounds, most notably in Qt Layout, resize to minimum after widget size changes, but none of what I tried seems to be working (and I have met other issues with app. Set the Auto-Height property to true. currentWidget(): s = self. But this isn't very elegant. It is a useful function when you want to adjust the size of text or an image displayed in a QLabel. However, event filters are called before the event is processed but I need after. currentWidget(). show() Does anyone know how I could resize the image to make it smaller? Archived post. To begin with, it looks simpler, but very soon it will start to make many things much more complicated than they need to be. addWidget(. rows - 1, self. Feb 10, 2012 · The yellow widget on the top is my QLabel, and the layout is the default one. (I know I could just use the message box directly but eventually I will have more complex dialogs. jpg') lbl. Enables auto-resizing if enable is TRUE, or disables it if enable is FALSE. I’d like my label to scale down to fit the text without manually setting it with setMinimumHeight() , however that wouldn’t allow me to use strings longer than the width of the label. def minimumSize(self): if self. Feb 4, 2020 · From the property editor dropdown select "Choose File…". cpp 1: 180: 181 Jul 6, 2021 · Then another problem arises: if the window is resized, the contents will not adapt until the text is changed. New comments cannot be posted and votes cannot be cast. Set the Qt::WA_NativeWindow attribute on widgets: The widget itself and all its ancestors will become native (unless Qt::WA_DontCreateNativeAncestors is set). All widgets will be native widgets. Widgets are basic building blocks of a GUI application. If you resize the window to a larger size, you can never resize back to a smaller size. Free and unlimited. move(0, 160) lbl. def smooth_gif_resize(gif, frameWidth, frameHeight) : gif = Image. Give App another method named resizeEvent(), which will automatically be called for you when the window is resized: def resizeEvent(self, event): self. setWordWrap(True) line, these constrains seem to disappear. 5 on a 32 bit Windows 7 Machine. Let's assume the initial size of the label is 320x240. This is useful for QLabel widgets that are not managed by a QLayout (e. From the property editor dropdown select "Choose File…". Add to Chrome for FREE. A comment on your paintEvent(). If you mean that the QLabel do not follow dialog, its because you must add a layout to the dialog and then label into layout to have it follow the Dialog window. Stylesheet "" is set at the same time as the property in the code. int w = label ->width (); int h = label ->height (); // set a scaled pixmap to a w x h window keeping its aspect ratio. Combining with Signals/Slots: If you're updating the content of the QLabel in response to some event (e. For example: 178: 179 \snippet code/src_gui_widgets_qlabel. The frame of the tab widget is styled using the ::pane subcontrol. I have found some help in previous questions like: PyQt: Detect resizing in Widget-window resized signal. The problem comes in when you try to make the window smaller: it doesnt resize the height, it leaves it stretched out. Code : Python3. addWidget(&l); l. The image is set as the label's pixmap and the adjustSize method is called to resize the label to fit the image. For example if i add one with text that means Qlabel must show 2 lines. app. def __init__(self): super(). Programatically setting the pixmap of a QLabel in Qt. Mar 21, 2014 · I had the same experience with C++; in Qt. This works fine but the movie has a lot of fine lines which get totally garbled in the resize operation, it seems there is no anti-aliasing. The adjustSize method is a built-in method of the QLabel class in PyQt5. Feb 11, 2020 · If you want to know all the methods of QLabel or any other widget you should check the docs of Qt, for example here is the docs of QLabel, and if you want all the methods you must click on the section "List of all members, including inherited members". $ python my_application. Feb 14, 2019 · So I just remembered about this post and since there's still no answer, I'll post my own workaround. scale_factor = 1. No user interaction functionality is provided. g. 7. How do I fix this? 1. Don't let the QLabel do the scaling. resize (width, height) Argument : It takes two integers as the argument which are : 1. This is not a good idea. exec();} @ This iseven more important because Widgets (& dialogs) created by Qt Creator always have a resize call when they get created behind the curtain. Do not use QScrollArea + QLabel as it complicates the task a lot, instead it is better to use QGraphicsView, QGraphicsScene and items. thumbnail. So the trick is to resize the widget to be smaller than the smallest pixmap you can imagine Jan 2, 2009 · I'm having difficulty getting widgets in a QDialog resized automatically when the dialog itself is resized. QtGui import QApplication, QWidget, QLabel import sys app = QApplication(sys. If you set the word wrap as well (in QLabel properties) than it will wrap each individual line in the Qlabel if Jan 1, 2013 · I made a class called ImageLabel which extends QLabel. May 4, 2018 · I created a QLabel and set it's movie to a QMovie object with an animated gif. You can subclass the label and create a menu whenever it has a valid pixmap, then use the system clipboard to copy it. By default, labels display left-aligned, vertically-centered text and images, where any tabs in the text to be displayed are automatically expanded. Subclass QLabel and and implement the paintEvent, where you can set the text alignment to TextWrapAnywhere when you drawItemText. The visual appearance of the label can be configured in various ways, and it can be used for specifying a focus mnemonic key for another widget. First take the ShowPic button to test. The text for the QLabel is set just before the dialog is shown. By default, the subcontrols have positions of a QTabWidget in the QWindowsStyle. Setting the word wrap is not required for this. Hm, i`m just using resize() method. Nov 9, 2016 · This little helper will scale the image down to fit into a label's maximum size if needed (but not up), always keeping the aspect ratio: /**. 6. Enter a new target size for your image. However, the look of a QLabel can be adjusted and fine-tuned in several ways. I am doing this all in code without the Designer, so it is entirely possible that I am just missing something. exec_()) This is my application, my goal is simple - have an image that fills the whole window and resizes after the window resize. For: 175: this use QLabel provides a useful mechanism for adding an: 176: mnemonic (see QKeySequence) that will set the keyboard focus to: 177: the other widget (called the QLabel's "buddy"). exec_(event. QLabel. exec()) I've tried the available aspect ratio modes (KeepAspectRatio, KeepAspectRatioByExpanding & KeepAspectRatio). setPixmap(QPixmap(image)) Then add the following line: self. Finally, I decided to inherit QLabel and to overload QLabel::resizeEvent() to keep things simple. Related. 0. Like below, label font size is changing accordance with window's size. The top-left corner is not moved. Sep 10, 2021 · 1. Auto adjust size of QLabel according to text it contains. Well, if the user wants, he can change the resolution of the incoming images, thus, forcing the Labels to resize. What i want: Open the main window for first time: width: 640, height: 512. Image Resizer. In this example, after setting a new text to the QLabel, we call label. Not using layouts is a very common newbie mistake. Aug 8, 2012 at 16:04. The positioning of the content within the QLabel widget area can be tuned with setAlignment() and setIndent(). Qt. May 11, 2017 · I want the QLabel to take the size of the text. * Fill a QLabel widget with an image file, respecting the widget's maximum sizes, * while scaling the image down if needed (but not up), and keeping the aspect ratio. 3, text is smaller than result image above for avoiding excessive width problem. Then in the resizeEvent of my app I resize and move the label, so that it is centered/fit to the layout. processEvents(), which should be avoided anyway). Powered by resizing. Example 1: Resizing a label widget Dec 23, 2016 · Using a layout will take care of the resizing (though you can set the size policy of every widget to ensure a specific way of handling resize events for each of these). . scaled (w,h,Qt::KeepAspectRatio); If you need to scale it down to fit the are of the label. Jan 14, 2022 · It is perfectly wrapping the text according to width. left: parent. top: parent. Qt5 library has a rich set of various widgets. Quickly resize image files online at the highest image quality. Next, with the Label selected, look in the right hand QLabel properties panel for the pixmap property (scroll down to the blue region). May 10, 2022 · I was able to find out how to do the same thing in PySide6 pretty flawlessly by following those simple example steps: 1. Code : from PyQt5. If the child widget exceeds the size of the frame, QScrollArea automatically provides scroll bars. ) Mar 1, 2018 · Always use the qreal versions of the QPainter drawing API. Rotate text 90 degrees using CSS. Sep 3, 2014 · sys. e i want the QLabel to resize itself according to the resize of my QMainWindow in such way the QPixmap is Sep 29, 2010 · QLabel l; mainLayout. : "Unable to Launch Qt uic". Auto-resizing is disabled by In the new approach, the operating system provides Qt with a scaling ratio that is used to scale graphics output: allocate larger buffers and set a scaling transform. For python users the solution would work like this: first keep the original "setQPixmap" line. Thanks, I've tested that and have notice that it also works with anchors. sizeHint() returns a QSize object with a width and height. QLabel resize is a method in the Qt library's QLabel class that is used to change the size of a label widget. Mar 15, 2023 · main_window = MainWindow() main_window. resizeEvent(self, event) #this line is present in the StackOverflow answer, but it seems to work without it for me, so YMMV Result. If anyone's still wondering, this is done on Windows in QT5. Something like this: ui->frameLabel->setPixmap(. Create a new window like this one: 2. addAction('Copy image to clipboard') if menu. resize方法 在设计任何GUI（图形用户界面）应用程序时，我们会创建提供信息的标签，但有时可能会出现标签的大小与内容不相称的情况，这时就需要调整标签的大小了。 在本教程中，我们将看到如何在PyQt5中改变标签的大小。 By default, labels display left-aligned, vertically-centered text and images, where any tabs in the text to be displayed are automatically expanded. Right click and select layout (on free spot on form, not label) , Jun 10, 2006 · Re: Auto resize QLabel. Jan 2, 2013 · The QLabel appears to resize fine, but once it reaches a certain point of narrowness it just cuts off the bottom few lines of the label and allocates the space to the stretch at the bottom of the widget. if I chance the parameters to a wider width and higher height it will crash the program without any errors. Setting. After creating your QVBoxLayout in Qt Designer, right-click on the background of your widget/dialog/window (not the QVBoxLayout, but the parent widget) and select Lay Out -> Lay Out in a Grid from the bottom of the context-menu. QScrollArea provides a scrolling view around another widget. The window is then shown with the label. In order to properly set a vertical height based on the contents, you should set the document's textWidth, and also call autoResize everytime the widget is resized. If your resizing involves content height to get bigger, you can fit the mainWindow to it like this: mainWindow. I happen to have this same question in 2021, so I here I will share with you some of the best answers I have found so far. The left and right corners are styled using the ::left-corner and ::right-corner respectively. When auto-resizing is enabled the label will resize itself to fit the contents whenever the contents change. When you run the app again, the window will appear in the same position. Height to be set. open(gif) gifWidth0, gifHeight0 = gif. In order to show multiple lines in QLabel, right click on QLabel and select 'change rich text'. Sep 11, 2020 · The solution is to subclass the QStackedLayout (or the QStackedWidget) and override its minimumSize(); if needed, sizeHint() could be overridden in the same fashion, but I wouldn't suggest it. Action performed : It set the fixed size of window. Dec 16, 2016 · Resizing a QPixmap inside a QLabel according to the Window. Resize Your Images Online. MainWindow with a single QLabel added. However, the textarea within the dialog stays the same size when the dialog is resized. This method is a part of the Qt graphical user interface (GUI) library, which is written in C++. bottom_right_label, self. The UI classes that pyuic generates have a setupUi method. I want it to keep the size ratio of the image that it is displaying no matter how stretched out it is. ui. In the following program, the textarea resizes automatically if you resize the main window. Hot Network Questions Nov 15, 2013 · You are not using the modules created by pyuic correctly. I've tried changing changing the size policy. Mar 26, 2020 · For this we will use resize() method. Instead, do the scaling by yourself using QPixmap::scaled(). I use a PIL ImageGrab with a bbox. resize(mainWindow. Feb 14, 2024 · Drag this onto the QMainWindow to add it. setObjectName("MainWindow") Apr 26, 2023 · QLabel with other wrap mode. Dec 28, 2014 · To do that, you need to re-scale the pixmap every time the label changes size: self. QPixmap(os. This unfortunately creates some issues in layout managers, as explained in the layout documentation: I am attempting to create a dice rolling simulator using PyQt5 with Python 3. This means when I resize the window that has this widget in its layout, font size is adjusted to the size of the widget to display the text in font as big as possible to fit in the size that layout dictates. Then, move the app's window to another position on your screen and resize the window as desired. size widthRatio = frameWidth / gifWidth0 heightRatio = frameHeight / gifHeight0. setPixmap(self. Replace hard-coded sizes in layouts and drawing code by values calculated from font metrics or screen size. When I try this and set label 2 and 3's visibility off, this is what I get: The gridlayout containing the qlabels is using a setFixedSize constraint, and each qlabel is using a preferred sizing policy for horizontal and vertical. Supported image formats: PNG, JPEG, BMP, TIFF, HEIC, GIF, WEBP. argv) mainWindow = QWidget() gameWidget = QWidget(mainWindow) #gameWidget. We have examples for the QLabel, QSlider , QComboBox, QSpinBox , QLineEdit, and QMainWindow widgets. The example shows how to combine QLabel and QScrollArea to display an image. 在设计GUI（图形用户界面）应用程序时，需要将纯文本作为信息显示在标签上，但有时信息文本可能很大或很小，使用resize()方法很困难，所以必须根据文本自动调整标签的大小，为了做到这一点，可以使用调整尺寸()方法。 Apr 14, 2018 · QLabel:: scaledContents scales the image to the size of Labels rect. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is Sep 26, 2021 · The window refuses to resize smaller than its original size. Size windows and dialogs in relation to the screen size. Syntax : self. ca ss up lf vi qx fj qu kr ev