Qlabel image fit. Modified 7 years, 8 months ago.



    • ● Qlabel image fit Here is the CSS equivalent: object-fit: cover; Current I've been trying to set an image to a QLabel from a URL. What's the best way to do it? Thus, my solution is rather short plugging the 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 I have created a preview that shows a rendered image. However, it is displayed cropped. @zed962 Yea I doubt he meant it for production level code without optimizations. I have it set so that when the window/QLlabel is resized, the image of the qlabel resizes as well. show() Does anyone know how I could resize the image to In this example, a QLabel widget is created with an image file ("image. – Here, lblImage is QLabel which is used to display my images. It's better to just use one of the drawPixmap methods with explicit dimensions. WhatIf last edited by . resizing image to fit exactly Jlabel of 300 by 300 px. By default QLabel has a horizontal-sizePolicy of QSizePolicy::Preferred which makes it to resize just enough to display its content (or expand if there is empty space around that no other widget use I have a QLabel which displays an image. How can i remove image ? By creating the QLabel as child of the widget (and not adding it to the layout) will make it completely indifferent to the layout geometry. I have been trying to keep the image set from qpixmap to not overflow to qlabel border. The example demonstrates how QLabel ‘s User avatar QLabel. The text for the QLabel is set just before the dialog is shown. mainLayout: toplayout: QLabel QPushButton Now I have cv::Mat image. getOpenFileName(None, 'Select Reference Image', '', '*. asked Dec 6, I am using QT for my application, and ended up using QLabel to display image. it stretches the image in both vertical and horizontal. You cannot rely on widget size upon construction, at that point the layout is not activated yet, and if the widget I have Qlabel with 270x30 Pixel ratio; what I want is to insert PNG file as background and Text on it dynamilaclly. I want to delete image if user clicks remove button . If you want to set margin of 220 -> you'll need to do mLabel->setAlignment(Qt::AlignRight); and mLabel->setMargin(80); which is width_of_ label - 220 + width_of_image. When I zoom the image gets its correct proportion. The QLabel's size is the same, the pixmap is scaled well within the QLabel and only visible within it, but the QGraphicsScene adopts the real size of the QPixmap, which is 720x720. Rafael Ueda. setPixmap(QtGui. drawRect( x, y, widht, height) to draw the rectangle. QLabel expands to fit one big iamge, but can't shrink back to fit What I would like to do is to load the image and fit into the label, not changing the label's size, but when I resize my window, and by that resizing the label as well, the image should be resized too so it will always fit into it. PreserveAspectFit } I don't want to use QML due to its ties with JavaScript. The code is fairly simple: label = QLabel() label. adjustSize() to fit the label to the movie. This is explained in the Layout Issues section of the layout documentation:. Then I take a look at the paintEvent function of QLabel in qlabel. so any idea of how to do the trick? i Agreed. I am interested in how you solved the problem. Follow asked Jun 27, 2013 at I am trying to add a QLabel with an image to my GUI at runtime, but the scaling is ignored and the image expands to its full size (which is larger than the screen), ignoring the size constraints and not scaling the contents correctly. Please help. During the designing of the GUI (Graphical User Interface) application there is a need to display plain text as information where label is used, but sometimes information text could be large or much smaller and it is difficult to use resize() method so have to auto adjust the size of the label according to the text, in order to do so adjustSize() method can be used. First, it must be understood that it means label. But i don't want display it on full size. But in full code (that was just relevant fragment) I had two more widgets, labels with text with code: label_top=QLabel('PLEASE WAIT') label_top. Alternatively, try setting QLabel for reasons of optimization only updates the image if it is different for it uses the cacheKey() of QPixmap, so only draw when necessary. as mainwindow. Set Qlabel width. The example demonstrates how Well as the subject says i want to Fit my image in Qlabel but here is the case, there is scaleContent for that Qlabel that does the Opposite job of fitting an image. My Header is: #include <QWidget> #include <QPushButton> class Window : public QWidget { Q_OBJECT public: explicit Window(QWidget *parent = 0); void initButtons(); void initMap(); signals: public slots: private: QPushButton *m_button; QLabel *label; }; The QLabel was cutting the top and the bottom like the image: Can I fit the Qlabel to the height of the text inside it without wordWrap? c++; qt; word-wrap; qstring; qlabel; Share. size(), QtCore. It is a common problem to display a QImage in a widget. I'll post my code in a bit. imagelabel = new QLabel(centralwidget); imagelabel->setObjectName(QString::fromUtf8("imagelabel" We are developing an application in QT5. 0 how to adjust/stretch image size on form resize pyqt4 python. Thanks Displaying a TGA image in QLabel (QT) SOLVED I hope this question fits here despite the QT connection. (265,400) self. While this can be done using QLabel. ; We resize the QLabel to fit the size of the image. I have tried many ways to scale the pixmap, but was unable to get good results. I then have to display this image using QT. Display image in Qt to fit label size. If you want to properly resize the image based on the contents of the layout, you have to resize it overriding resizeEvent(). There are a couple of ways to do this. There might be different approaches depending on the situation, so I suggest you to edit your post, add more details about what If I may ask you @ekhumoro, when I zoom in on the image with the mouse, the image itself is zoomed but when clicking with the mouse to get the coordinate (the mousePressEvent method I guess), I get coordinate as if the image wasn't zoomed or as if the scaled was changed for the image but not for mouse events? Did you have that with running I am dynamically creating a QLabel named label (that has a QPixmap) inside a QHBLayout named layout inside a parent QWidget named by this such that the QLabel image resizes with parent this but maintains the original image aspect ratio. ui. jpeg' class PixmapLabel(QLabel): """ A label widget that has a pixmap On Windows it will properly display the no image available, but when an image is found the QLabel will just end up blank, displaying nothing at all. Note: StreamThread method is related to the video stream and I don't use it to update the image for now. remove_image, source_label = labels[i] ,source_image = pixmap) but i couldn't use it and connects with button . 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. I have to resize the Qlabel to view the image In my main code I need to display videos , images and textedits on listWidget . And each image should fit in the label size provided. pixmap = QtGui. h" Dialog::Dialog(QWidget *parent) : QDialog(parent), ui(new I added a stretcher and used a QLabel to display the image, and then added the file via self. I want to display it on a label. Resizing the QLabel doesn't seem to affect. Now the above does scale the image so that it fits, however the problem is that the image looks all compressed and ugly. It is a little "jumpy" but it does work. Additionally, since I have the the three labels in a layout inside a groupbox, the groupbox resizes to fit its contents, cool. If the child widget exceeds the size of the frame, QScrollArea automatically provides scroll bars. The goal is to have the qlabel crop any portion of the image that does not fit into the qlabel. How do i scale this to fit the label it is contained within? Thanks for your time and trouble. toolbar = QToolBar("Camera Tool Bar") # creating a tool bar self. "ScaledLabel") and set the header file to the python module that the custom subclass class will be imported from (e. The problem is, no matter which layout I use, my QLabel is growing everytime I set pixmap. Let’s modify our previous example to scale the image to fit within the QLabel. However, I suffer from screen tearing effect. I have an label that displays an image, however the image is cut off since its size is bigger than the label, I have tried self. QtWidgets import * from PyQt5. However, when I try to save the image and retrieve the pixmap, it is the original loaded. But if I use QIcon , I can display all but the images are behind the other widgets. Hot Network Questions Hearing the cry of a baby - abandoning practice def selectFile(self): image = QtGui. Like this: Perhaps the top image is an empty area of the invisible. setStatusTip("This will capture picture") # adding status tip to the photo action click_action. Resize an image to fit the entirety of a JLabel adapting to its size. Below is a part of the code . The container holding the Labels is a ScrollArea. Among other things it has one button, a ScrollArea which contains QLabel to hold pixMap. In my case, I need to load an image and fit it in a QLabel Pixmap so it keeps the aspect ratio. And i don't know wo to find out what the new size is when the application gets resized. AlignCenter), that code indicates that the element that is displayed (QPixmap or text) in the QLabel will be in the center of the QLabel, not in the center of the window. Text length may change from large to small and vise versa, accorindly our image changes and fit the text inside the images its mean flexible image according to the text I am subclassing QLabel, on which I set QPixmap. labels[i]. If the image exceeds the size of the QLabel, then the scrollbars appear. Then, when the user calls a method (scaleImage) I need the image to zoom in/out according to the scale factor argument. Image is displayed but scroll bars are not enabled. The image should be fit into the bottom, left side of the window, as my GridLayout describes here: I have developed a form in PyQt5. QPixmap('res/image. To provide a "skin" or background that scales along with the widget size, one must use border-image. I tried to use a resize event with a qpixmap rescale. 1 Reply Last reply . jpg"). I want my main window (only for display image, toolbar is floating) can auto-fit with the size of the image loaded. No images appear in present widget. 19. So I try to use QImage::loadFromData to load image for my application to use. i want to draw a rectangle on the image. This topic has been deleted. resize(200,20) self. addToolBar(toolbar) # adding tool bar to main window click_action = QAction("Click photo", self) # creating a photo action to take photo click_action. You can scale the image to fit the QLabel using the scaled method of QPixmap. Here is my code: In the So, the solution is to get the QLabel size and resize the image to fit the QLabel size. PyQt5 - Add image in background of MainWindow layout. 2. QLabel won't fit an image without margins QLabel won't fit an image without margins. The following code resizes the image, but with very bad quality. And I still cannot understand, why do you need label2 along with label. @eyllanesc I'm closer to a solution. Size of label is not important. Image { anchors. However, with MinimumExpanding set on the label, this expands the QLabel's height to the height of the viewport. I have converted to QPixmap. Fit image into Qlabel Nominate our 2022 Qt Champions! Fit image into Qlabel. I am trying to create a PyQt5 - QLabel with both image and text. The example demonstrates how QLabel's ability to scale its contents (QLabel::scaledContents), and QScrollArea's ability to automatically resize Instead of randomly selecting a country to display its flag, we loop through the flags dictionary that is key-sorted. setToolTip("Capture picture") click The top label has a image and the lower label has text. Right? But, the width of the image will be the width of the QLabel, but the height of the The default behavior of a QLabel in PyQt or PySide is to resize itself to fit the size of its contents. Sometimes, the image might be too large or too small for the QLabel. BUT I zoom out and the scroll bar is the same, even if I can see the whole image. 1 Hi this is the code i currently have: ui->imagebox->setPixmap(QPixmap("C:\\Picture2. it is used to show the user One of the widgets is a QLabel with word wrap set to true. setAlignment(Qt. I tried to scale the QPixmap, the QImage or the QGraphicsPixmapItem but couldn't make it work. You can just use a QLabel to show an image in a widget. AlignCenter) label_top. I have to work on a project in cpp where TGA images are manually coded and loaded from a file into my data structure. Then I am appending the words in QList<QString> data and checking if the width of the appended words is smaller than then width of the label. I'm attempting this in the Handle Question sub routine. Running python 3. lbl2 = QtGui. , there is space on the corners. here's a sample of it. . I look the image viewer demo, and decide to use QLabel to show images, but here is the problem. Thats why I use graphics view to list in listWidget. In the example the difference is given by the size of the labels since the first and third labels do not have fixed sizes unlike the second If you put your label into a layout its size will change to fit the text it contains (in the limits of the available space given by the layout). here, love is a QLabel . How can I make my image scale, keeping the proper proportions, so that it fits in the label? When increasing the windows's height, the label and image grow accordingly, keeping its ratio. Here is the code I am using, why does the code run in a recursive loop and why are the labels not drawn?: I am actually designing an app using the pyqt5. Changing the size of the QLabel doesn't preserve the size when I add it to a horizontal layout (the label reverts to the image size). Hi all, I wanna use a QLabel and place two or three images on top of each other. h" #include "ui_dialog. (I want this because I dynamically set the text and add widgets later which cause it to cut off part of the text) Widget::Widget(QWidget *parent) : QWidget(parent) { this->setFixedSize(100,100); QHBoxLayout *layout = new QHBoxLayout; this->setLayout(layout 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 I've read the documentation of Qt for resizing policy but I couldn't find how can I achieve the scenario of changing the image's size to fit the new size of Qlabel. I acquire image from webcam and it's size is 640x480. Try other image. To view the resulting UI, we can use the standard application template below. Firstly, you can promote your QLabel in Qt Designer to a custom subclass that is written in python. jpg image would be displayed in the label. Hello dear programmers. Th Skip to main content. However, I will need to zoom in/out the image (that I try to do by calling resize() on the QLabel) on click (zoom the image inline, not load a zoomed version of the same image!), which this method is not allowing me to do so. and one time I was successful but it ruined the resolution of the image. The window is then shown with the label. setPixmap(QPixmap("image. After script running get current screen. Class Grid align and grid images, text and checkboxes. I found that QMovie does have QMovie. You can now save your UI to file (e. qrc) only 20MB . How do I make this work on Windows? Perhaps there is a more elegant approach that avoids writing a temporary file? QWidget background-image fit. If your image is 1000x1000 and you scale it to 10x10 and then back to say 500x500 it will be ugly blurred. So I'm trying to scale an Image to fully fit a label from top to bottom. You can resize the image to fit the QLabel using the scaled method of Is there a way to resize it according to the size of the QLabel? I mean when I expand or shrink the QLabel with my mouse, I want that image resized simultaneously. The widget you use to display an image is QLabel. The images are displayed pixelated and uncentered. ui). Create a New Python File: Open your IDE or text editor and create a new Python file named scaled_image_label. Pyside: setting the background of a row in a QVBoxLayout widget. g. 6 Warning: When passing a QString to the constructor or calling setText(), make sure to sanitize your input, as QLabel tries to guess whether it displays the text as plain text or as rich text, a subset of HTML 4 markup. Here is how im trying to do it right now: import urllib, cStringIO img_file = cStringIO. Code Example: Scaling an Image. 0. Right? But, the width of the image will be the width of the QLabel, but the height of the QLabel have to be resized to the new image haight to not get image stretching. 'mylib. But im having no luck. Now this far I have loaded all my pixel data into a vector of chars and the But the image was not resized as smoothly as QLabel does. In your first case the first time it is displayed, the text is painted, then you set the QPixmap and since no QPixmap is redrawn for the first time it calls paintEvent(), it draws the text again, then you set the QPixmap again but The Widget we should use to show pictures is a QLabel. You need to change the alignment to display the image. I have a Qlabel that I load an image to and I have read a lot of forum posts but can't seem to keep the aspect ratio. Where are images? Hi, I have a QLabel where I need to fit an image. ; We check if the image was loaded successfully. QFileDialog. LogoLabel. It is a grayscale image, not full RGB32, but that format seems to be the closest I have gotten so far. How to display two images in each Qlabel PyQt5. How can I do this with Widgets ? I tried using QLabel but it has no option to set aspect ratio or fillMode. I am also trying to display video stream on QLabel with high framerate and large size of image. The example shows how to combine QLabel and QScrollArea to display an image. In the case, when both of them are specified, the border-image draws over the background-image. However, debug output before and after setting pixmap shows same size, but next time when that slot is called the size is Image Viewer Example¶. setPixmap changes picture, all you need to do is to make QLabel a member of QMainWindow class. Qt - QLabel won't resize with fixed ratio. addWidget(label_top) And despite not beign QLabel won't scale its image. When decreasing the windows's height: If the image doesn't have to change, even if the label does, the window resizes normally. I would like to resize these images according to the changing window size. Replace :/path/to/image. The image is streched from left to right. Stack Overflow Unable to get QLabel dimmensions to correctly scale a QPixmap to its fully fit QLabel. Auto adjust size of QLabel according to text it contains. In the following code, I am making a logic where I am first getting all the words in the string. How can the size of QLabel set to one of its pixmap? How can that be done in such a way The two QLabels that I showed in the example image should take up a minimum amount of height such that it fits only the text inside. in case you expect the text to be in plain format but cannot control the text source (for instance when . Unlike the random choice which will inevitably repeat the flags, this scheme runs through the countries in alphabetical order. read()) image_file = Image. The PyQt5. Opened the same image, now I can see a vertical scroll bar on the right. 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 I am write a paint program. setPixmap, the resulting QLabel will have a fixed size equal to the size of the pixmap. But i want to fit image in Qlabel. The QLabel on a layout let me resize the height? Thanks, I'm trying to make a picture fit a JLabel. from PySide2. 5. lbl1. I would like to have a text at the bottom of the image. Hi and welcome to devnet, My QLabel's size is 600x400. jpg")) It works with PNG files, but it doesn't work with JPG files. I have a QLabel that is loaded with a pixmap. QScrollArea provides a scrolling view around another widget. A similar question was asked here: PyQT: Rotate a QLabel so that it's positioned diagonally instead of horizontally but the code in answer causes a recursive loop issue. Thank you @eyllanesc, that worked. lbl1 = QtGui. urlopen(image_url). it stretches the Resizing Images to Fit QLabel. /assets/launch_image. I wish to reduce the picture dimensions to something more appropriate for my Swing JPanel. How to set QTableWidget upper left corner using a background image？ 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 QLabel is typically used for displaying text, but it can also display an image. I have a label, which size is specified by the layout, but if I load an image into it with a pixmap, the label is resized to the size of the image. I used QIcon to display image thumbnails . The code I wrote is : QLabel *img = new QLabel(tab); img->setPixmap(QPixmap(":/ I want a QLabel to expand to full width of the container regardless of the contents. partial(self. It crops the image and it shows some pixels (as expected). I want it to expand proportionately if/as the user grows the window. I have declared QImage *image; in my header file and i get my image from msg into *image using image = new QImage(&(msg->data[0]), msg->width, msg->height, QImage::Format_RGB888);and then i want to set my image in the QLabel from this pointer. Only users with topic management privileges can see it. move(0, 160) lbl. I create two I'm trying to display an image in pyqt for my coursework. QLabel("Integrate the equation below",self) self. from PyQt5. mousePressEvent = functools. The problem is the outputs from the labels width, and height is not pixel values so I'm not sure how to correctly go about this. that function well for expande qlabel and compresse tabview but the reverse dont work. How do I go about handling this? Thanks So, to deal with the above mentioned problem. QtGui import * from PyQt5. SetScaledContents(True)but this only resizes my image to fit in the label. pix = QPixmap(600,500); // set size to 600X500 How to change size after this? Someting like: pix. I have created a Qt interface, add a Qlabel and set pixmap to an image. Since the border-image property provides an alternate background, it is not required to specify a background-image when border-image is specified. When I magnify the label, the image doesn't change together with it. 7 on both operating systems with freshly installed PyQt5 packages. Now I wanted to drop the slider approach and instead autofit the space available when moving the splitters. When I use Qt:: KeepAspectRatiobyExpanding, the pixmap occupies the complete label, but I do not get the full view of the pixmap ie, some part gets truncated. The image is set as the label's pixmap and the adjustSize method is called to resize the label to fit the image. The logo (a banner really) is considerably larger than the default size of the QLabel. QPixmap(_fromUtf8(image))) This works fine (the image is updated), but it is also deformed if the image used to update the label has different size from the place holder image. However I am losing picture quality when I zoom back to the . As a new requirement, I must be able to do panning, and not show scrollbars. QPixmap(os. fill: parent source: "/path/to/coo/image" fillMode: Image. repaint() # repaint() will trigger the paintEvent(self, event), this way the new pixmap will be drawn on the label I have a designer form (Dialog without Buttons template) containing QScrollArea and 2 QPushButton objects inside a vertical layout. On click of the button . QLabel(pretty(IntQuestion[0], use_unicode = False), self) self. Qt: resizing a QLabel containing This is an example of how I want the QPixmap to be contained inside the QLabel. join("data", "images", image_name)) myScaledPixmap = myPixmap. QGraphicsView has a lot of powerful features that won't be needed or used if you just need to display an image. – I started by creating a class PixmapLabel that inherits from QLabel since I wanted to override the resizeEvent event: import sys from PyQt5. StringIO(urllib. You may want to call setTextFormat() explicitly, e. jpg with the actual path to your image file. It will be clipped to fit. height()); 1 Reply Last reply . the problem is, my label is only showing a portion of the image, which is large (larger than the screen). ; Finally, we add the QLabel to the main window's central widget and lbl = QLabel(self) pixmap = QPixmap('weekend. pixmap. 6. Hey so I have this function which works and scales the image nicely and will shrink and expand it given the correct shortcuts from the UI. open(img_file) Then setting this to a QImage: If the label is put into a layout manager (and it normally should, as any widget), moving it is pointless. QPixmap(img) self. we should first create a resource file and then add the image to that I have a window that has six symmetrically placed labels, all showing images (designed using qt-designer with the help of layouts). QLabel: Scaling Images for Zooming and Losing Picture Quality. classes'). Well as the subject says i want to Fit my image in Qlabel but here is the case, there is scaleContent for that Qlabel that does Hi, I am using qLabel inside scrollarea to display image. anyway, I found this way pretty disappointing as widgets now disappear and they do not fall on top of the QLabel background image! I both want to scale the image to fit the template as well as the widgets to fall on top of the image, do you have any idea how i can do that? and can you also explain why in the case of QLabel, widgets do not I have used the following code to display the image(s): myPixmap = QtGui. If you are doing something custom, you could override QLabel::sizeHint() and return appropriate size for the widget (or maybe just set minimumSize). The maximum width and height of the QLabel is 16777215, the vertical size policy is set to Expanding and the horizontal is What i want to do with this is to display an image that will have a tooltip and explain what the button next to it does. Follow edited Jun 25, 2019 at 13:22. Here is the code i'm using: To change the image you can add a method changePixmap(self, img) to Label class and call it on an event on which you want to change the pixmap. width(),label. cpp to see how it displays the pixmap. I want the image to scale to the size of the QLabel. setStyleSheet("font: 20pt Bahnschrift; background-color: #ffd167; color: black") layout. scaled(label. When I create a test form using the QT Designer and add a series of labels, and put them in a QGridLayout, the labels occupy the full size of their cells in the grid. Try to change the format jpg to png. jpg') self. I was showing scrollbars "as needed". At the moment, the second image is achieved by changing the stylesheet of the qlabels with a slider. QtWidgets package library is used in both examples to create and manipulate the QLabel widget. i. What I am doing now is the following: QHBoxLayout* layout = new QHBoxLayout(this); label = new QLabel(str, this); /* I've a Widget, which wants to display Images with QLabel and QCheckBox. md2012 last edited by md2012 . import sys from PyQt5. Add a comment | Related questions. jpg') lbl. However, this will ignore the aspect ratio of the image and scale the pixmap to fill the Is there a way to resize the image to fit the label? For instance, if example. I want to set QLabel with a pixmap inside the QScrollArea. QtGui import QResizeEvent, QFontMetrics, Qt from PySide2. Dynamically change font size of QLabel to fit available space. This is my GUI structure . Right-click the QLabel and select "Promote to", then give the class a name (e. Hi there, the small imageViewer i write has two big problems: i can't find out the size of the label, so i cant resize it. 2, wherein we are using stylesheet file to set background image for QLabel using "background-image" property in stylesheet. This is usually desirable, but there are situations where a fixed size is required. But when I set the pixmap to the QLabel and scale it, it fails. 1. Is there any way I can also set the QLabel to maintain the image's aspect ratio? I do not want to have "blank" QLabel space either side of the image when the label is wider than the image. QLabel is typically used for displaying text, but it can also display an image. IMAGE_PATH = '. QtCore import * class Window(QWidget): def __init__(self, *args, **kwargs): QWidget. png")) where imagebox is a label. If the image needs to shrink, then the window doesn't resize at all. I'm a beginner and honestly the concept of looking in folders is a bit abstract for me. When scaledContents is enabled the image is resized to the fit the bounding box of the QLabel widget. What I want to achieve is to have an image displayed, centered, scaled correctly, taking the most space it can while keeping its aspect ratio. QLabel expands to fit one big iamge, but can't shrink back to fit a small image. This method uses the setClipPath QPainter method in conjunction with QPainterPath to crop the image. QLabel:: scaledContents scales the Now the image is rendered on the QLabel, but this is not what I desired. Modified 7 years, 8 months ago. The difference with setPixmap is that it delays the laying out of items in the whole layout, so the move gets ignored due to that. so i used mouse press and release event to get the mouse press and release values on the image. setScaledSize() which scales the image reader. The use of rich text in a label widget can introduce some problems to the layout of its parent widget. i have been trying to display a image on Qt. scaled(self. Here's an example that calculates the font size that will fit in the label's current size. QtCore import * from PyQt5. lbl2 On the other hand, QTextDocument, which is used by any QWidget subclass that uses text (sometimes publicly, like QTextEdit, others internally, like QLabel), provides the outline feature, so a possible solution is to create a class that partially mimics a QLabel, providing correct size hints and word wrapping. If the That's also creating a copy of the image, thus is not very good performance-wise. in the app in one of the screen i am displaying an image on the QLabel. Thanks. I've read many places that the easiest way is to create a label and use that to display the image. And on a button press, want to draw a transparent section on this QLabel. I want to zoom into the image displayed in the pixmap (without losing quality). Also, if you need to unite several pictures in one, you can do it within QPixmap class, using QPainter, without creating several labels. This shows the entire image at all times, although it does not respect the aspect ratio of the image if you resize the widget. path. I am setting qLabel sizepolicy to fixedsize programmatically in one function of code. 4 classes are created each contains some information to be put on the final screen. Besides the way you use scaled() is no good. Commented Jun 22, 2015 at 10:46. I had The label is used to display images, let's assume it's used to display thumbnails of 100x100 px. In this case is 320-220+20=80, tested and compared with a So I would need the image itself to fit the Scene's size, since the Scene's size is by default the size of the largest item inside of it, smaller images won't fill the entire window. python; tkinter; python-imaging-library; Share. You could add a resize event handler for your label class (or for the parent container) which would scale the images once the available space is known, then assign it to the labels. It's placed in the gridlayout, but I also tried vblayout and hblayout. The horizontal scroll bar never appears. I want to update the image with the setPixmap() method but it doesn't update the image correctly. #include "dialog. we can do it directly from QtCreator, by setting its pixmap property. I am trying to have a QLabel() display a pixmap JPG image from a file (which can't be in a resource file since it is downloaded from the web), but I am having problems loading it. QtWidgets import * # You can plug in a path to an image of your choosing. It seems like the images are not arranged in listWidget. 6. Add text in Qlabel. The image keeps its aspect ratio and fills the given dimension. The example demonstrates how Here's what's happening in the code: We create a QPixmap object to load an image from a file. How to set QLabel's size to that of the image in its pixmap? 105. I would call that only after the person had chosen a size, or maybe less often during the resizing. I don't want to see the entire image enlarged, just to zoom in. When i display it on a label. i am using the QPainter. logo_buttons. The example demonstrates how QLabel's ability to scale its contents (QLabel::scaledContents), and QScrollArea's ability to automatically resize in the qlabel i put an image. So that each image should be able to Zoom in and Zoom out at same ratio. want to set image in QLabels for a little game in QT: I'm a beginner in QT. ATM, i have a 2000px*1500px image loaded in an QLabel, and setimageLabel->setSizePolicy( I already tried to include it in the stylesheet with QLabel{border-radius : 5px;} But i keep getting the same Result Here's the code i wrote to generate that window : userPreview::userPreview(QString . QtWidgets import * class GUI(QMainWindow): def __init__(self, **kwargs): That's because if you are over half the size of the Label, (in this case 160 pixels). A normal QLabel::size() doesn't report what i need. Actually during my test, setScaledContents(true) only fits the image to the size of the label. Height, width of the image is much bigger than that of QLabel. QtWidgets import QLabel class ScaledLabel(QLabel): def resizeEvent(self, event: I have a custom QLabel class which is called ImageLabel to show images and video stream. T Well as the subject says i want to Fit my image in Qlabel but here is the case, there is scaleContent for that Qlabel that does the Opposite job of fitting an image. setSize(800,600); // Change size to 800X600 I am manually creating a set of QLabels that are being put into a QGridLayout, and should be distributed evenly. py. It is possible to use setScaledContents to make QLabel scale the pixmap and allow for resizing. KeepAspectRatio) The above code works fine without any issue. If it was, we set the pixmap (image) on the QLabel. I use a PIL ImageGrab with a bbox. It was meant to give the guy an idea on how to deal with it. Those, the actual size of the image looks like an elongated rectangle, in which the visible part is on the bottom. – reclosedev's answer gave me the key clue of using the Ignored size policy, but there were still a few details to iron out. I can learn which image clicked . Sounds like you are looking for the QLabel:: Once an image is loaded, the View menu allows the users to: Zoom In - Scale the image up by 25%; Zoom Out - Scale the image down by 25%; Normal Size - Show the image at its original size; Fit to Window - Stretch the image to The following code is working, but the image is not scaled to fit the label. If I load the image using painter and then update the label, it comes up fine. I used the Image Viewer Example for zooming functionality - so I have a class inheriting QScrollArea, capable of showing an image, in a QLabel, and zooming in/out/fit with specific limits. Therefore, if you change the size of the QPixmap p will not be reflected in the QLabel since the QPixmap that has the QLabel is a copy of the one you established at the beginning. Currently, I have the image set to keep it's aspect ratio, and grow as big as it can within the QLabel. The "1" sets the "setScaledContents" to true which scales the image to fit the current size of Qlabel at all I'm beginner in Qt and I couldn't display a picture using QPixmap and QLabel. However, the images are displayed on the left side of the label instead of It is not necessary to store QPixmap by means of a pointer since when passing it to the QLabel it is copied by value. QLabel would be the more appropriate because, although it's name might suggest that it's primary purpose is to be textual, it's actual purpose is to be a light-weight QWidget used for read-only purposes. I have Googled quite a bit and found that I Image Viewer Example#. i dont arrive to compresse the qlabel. image Hmm, QLabel should update it's size hint to correspond new contents when setting text/pixmap/. I would like to be able to resize the qlabel and the pixmap inside with the splitter. @Qtstarter121 said in Resizing QPixMap to fit QLabel issue: label->setScaledContents(true); instead of this, scale the pixmap to labels width and height. Qt. def changePixmap(self, img): self. Resize images inside qt I am new to QT, and I want use QT to develope an image manual annotation tool which loads image and allows users annotate them. Hi, setting scaledContents of the label should do it. How can i do this. If I Since you're wanting to insert an image you might be expecting to use a widget named QImage or similar, but that would make a bit too much sense! QImage is actually Qt's image object type, which is used to store the actual image data for use within your application. For both labels, I right clicked > Layout Alignment > Center Horizontally, Top. Basicaly, I'm looking for a way to display an image that have a tooltip programmed in it. How would I go about retrieving the newly resized image from the QLabel and retrieving it as a QImage? How do you want to zoom the image? Has the QLabel a fixed size? Is the QLabel resizable (which will result in the image being zoomed in and out)? – qurban. And each image should be transparent to one another. I have a QHBoxLayout with a QLabel in it, and I'm trying to get both an icon and window title text in the QLabel. Is that possible? Or even to add the icon directly to the QHBoxLayout, so that is is Pyqt5 QLabel with image at top and text at bottom. if I chance the parameters to a wider width and higher height it will crash the program without any errors. The best way to make a circular avatar. Here is the image, code and . Problems occur due to the way rich text is handled by Qt's layout managers when the label is word wrapped". setPixmap(pixmap) lbl. How to set QLabel size according to the size of its text? 1. IF you also need a zoom feature, then things are obviously very different and a QScrollArea obviously could make sense, but then other question rise: what should happen if the window is resized? Should it keep the current ratio between image scale and window size? Or should it try to adapt the "current scale" to the new size? And should the scale adapt according I'm trying to create image in QT (inside label) that would change size according to changes in window size, but also would keep aspect ratio. So instead of scaling the label, I scale the movie and then call QLabel. Ask Question Asked 9 years, 4 months ago. Hot Network I want to rotate a QLabel so that it is oriented vertically. png')), so i do not So, the solution is to get the QLabel size and resize the image to fit the QLabel size. Hot Network Questions I get a complete view of the pixmap image, although it does not cover the complete label widgets, i. I have qlabels that displaying images . I do not want the image repeating it self when the size of the QLabel goes beyond the size the image. Improve this question. label. e. But Resource Collection Files (. Without the pixmap it's okay, the QGraphicsScene's size is 600x400 too. ui->label->setScaledContents(true); Regards gerd @AngryDuck "the image is located im my project directory" - But can the application find it there? Is it given as a relative path in the final setting code (that generated by the designer) and if yes, does this relative path match the working directory of the application when it is actually run (which doesn't neccessarily need to match the project directory exactly)? When scaledContents is enabled the image is resized to the fit the bounding box of the QLabel widget. Is there any way to fix this? i have been trying to display a image on Qt. png is 2000x1000 but the window is only 800x600, only a part of the image is displayed. You may call QWidget::updateGeometry() to notify the layout system about the geometry change. If you wanted to use it in production you would need to limit the calling of the while loop during the resize event. @phnhung98 said in [SOLVED] Use QScollArea & QLabel to display image: Hi, I followed your link but it is not available. __init__(self, *args, **kwargs 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 I use Qt Resource System to load images. And again setting it back to expanding in other function like follow Are you just trying to show the scaled image in a widget? I don't think setting the image in the brush and then setting the brush in the palette is the correct approach. move(0,0) self. fix jzlb ucyjq ugcmp pqkeg pdzsk agrtmp fmblu higpj iihyw