Qmainwindow get size. Apr 6, 2016 · There is a resize event.

Qmainwindow get size 5 PyQt5 Oct 30, 2019 · I have only one QMainWindow and, inside of it, I have these two things: A QImage and a GraphicsView. directory images can do it like this /images/icon. If you do so, the elements in it will never scale to the QMainWindow size. The content of the window stays the same size, when I expand or reduce the Main Window size. Dec 11, 2022 · By reimplementing QMainWindow::resizeEvent() and QMainWindow::showEvent(): You can use the changeEvent and react on the event to get the size in the state of Sep 2, 2013 · Given example, depending on Pixmap size, QMainWindow will resize. Overriding the sizeHint method did only resulted in a small enlargement of the Window and setting the minimal height brings me back to the beginning where some of the controls are not assessable on small resolutions. The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow): Nov 10, 2018 · The position of a widget is with respect to the parent if it has it, and if it does not have it is with respect to the screen, so in the case of MainWindow, since it is a window, pos() should be used, if it were a widget that has a parent you must use self. Feb 23, 2015 · You can resize the window to minimumSizeHint() after the number of widgets is changed :. Set the central widget. If you call this from the main window it will return the size of the main window. Setting the central widget to a fixed size solves the initial size problem, but then the QMainWindow can no longer be resized. Nov 30, 2019 · The size policy of a widget is an expression of its willingness to be resized in various ways, and affects how the widget is treated by the layout engine. Is there some method for get this geometry information. width() pixels horizontally and sizeIncrement(). Jan 8, 2012 · When I have a QMainWindow with a grid layout, when resizing it with the mouse, it won't go below some minimum size that's necessary for all the controls in it to show properly. void QWindow:: setSizeIncrement (const QSize &size) Sets the size increment (size) of the window. For example: QGLWidget * glw; // in your header for QMainWindow Jun 26, 2017 · My program automatically run at startup. If you do so, you’ll break the preset arrangement of the widgets. QtWidgets import QMainWindow,QApplication,QPushButton, QGroupBox, QHBoxLayout,QVBoxLayout import sys from PyQt5 import QtGui,QtCore from PyQt5. Apr 6, 2016 · There is a resize event. I've looked at QApplication::style()->pixelMetric(), and I can get the height of the title bar using Nov 13, 2023 · The geometry of a PyQt6 window refers to its position on the screen and its size. Oct 28, 2013 · I am facing a problem, I have created an application using QmainWindow it is having tool bars, &amp; statusbars. The problem is that when I set the QFrame to something like 200x200 then QMainWindow does not resize, it remains too small to display both labels. I tried QMainWindow::setIconSize but it changed icon size in toolbar section. This returns the current screen the MainWindow is on. You may be interested also in QMainWindow::saveState() and QMainWindow::restoreState() Jan 6, 2016 · How to size QMainWindow to fit a QTableWidget that has setVerticalHeaderLabels. cpp, in order for painting at that region where the widget is located. When the application starts, the QMainWindow appears and these values must be valids to create a good UI. This property holds whether manipulating dock widgets and tool bars is animated. . 2. __init__() self. It is only an idea! 1 Reply Last reply Reply Quote 1 PySide2. May 5, 2016 · QMainWindow - but I'm not sure if I can't switch, so what's your suggestion? – frans. Am I missing some sort of update function? I don't get why it wouldn't update the size. Alternatively you could subclass and re-implement sizeHint method for your widgets so that the layout manager will get a preferred size. Or in the constructor as above. Sep 26, 2018 · I found the following example self. I'm using QBoxLayouts on QMainWindow and QFrame. QWidget): def __init__( Apr 20, 2012 · Probably the easiest solution is setting the minimumSize for the widget inside QDockWidget so that the layout manager in QMainWindow will not shrink it beyond that. With the right policies, elements like the icons and scores at the bottom will stay reasonably sized in all geometric configurations. Some of these Widgets consume focus and mouse events. I just wrote this little main window that changes the cursor manually when the main window's area is left. When I expand the main Window, the tableview does not, and it leaves an ungainly blank space, so I fixed the size. Nov 22, 2011 · Both widgets have a minimum size of say, 300 pixels. Now I would like this layout to fill the full size of the window and to resize itself whenever the window size is changed. In short, this should work: Jul 7, 2018 · One possible solution is to use QQmlProperty to obtain the QQuickItem, then connect with the signals heightChanged and widthChanged, these signals only notify that the property has changed but it does not indicate the value, so you must use the method height() and width(). This is perfect use case for showEvent. Each widget returns a QSizePolicy that describes the horizontal and vertical resizing policy it prefers when being laid out. If you have any knowledge about it please adivce me. Apr 19, 2011 · To fix the size of the main window itself just call: @setFixedSize( myDesiredSize );@ It's a member of QWidget which of course QMainWIndow inherits. top = 100 self. Oldest to Newest. Aug 26, 2014 · You might want to rewrite the resizeEvent function of the QDockWidget widget. Jan 29, 2015 · You can resize the window to minimumSizeHint() after hiding the widget:. 0) provide information about size of screen (logical and physical), orientation and signals for changes. Last advice: since looks like you layout your items by hand, never insert the outermost layout by hand. height() pixels vertically, with baseSize() as the basis. io Jul 15, 2021 · In your virtual void QMainWindow::resizeEvent(QResizeEvent *event); you can store the size of application in variables where all your code can access them. Jun 5, 2019 · Leakage: I can still "pull" it away from the top of the screen and when I do so, it goes back to its default size (default as in QtCreator's fresh new app window size) which btw I can't maximize again, obviously, not even "throwing" it back to the top of the screen, please any insights. window->setMaximumSize(QSize(1000,1000)); Set this property in your form(ui). In GUI applications the window's position & size are known as the window geometry. 4. TabShape ¶ Jan 30, 2015 · I would like to resize the MainWindow (QMainWindow) after I make some widgets unvisible and vice versa. Sep 1, 2021 · I want to get the size of my QT Main Window or QT Label, since I am trying to make a full screen image viewer. I am not sure you are actually looking for this. Is there a way to do this, or do I need to use a layout? If a layout is the way to go, which one do I use? Windows 10 Python 3. Aug 6, 2023 · Hi, without seeing any relevant code, this answer is based on two assumptions: the window system is Wayland (because xwininfo is used); by "window handle", you mean QWidget::windowHandle() (not QWindow::handle(), which returns a QPlatformWindow *) As answered by other(s), QMainWindow has its own layout. Oldest to Newest; Newest to Oldest Nov 25, 2014 · So assuming that you have your QGLWidget nested inside your QMainWindow as the central widget, you need to set the size policy of your QGLWidget. When a dock widget or tool bar is dragged over the main window, the main window adjusts its contents to indicate where the dock widget or tool bar will be docked if it is dropped. By default, this property contains a size with zero width and Aug 14, 2015 · When closing, I write current position to the file to get it next time and show the window in prev position. For example if a QMainWindow subclass has a central widget, with children and layout managers; then if widgets are hidden and variable size widgets like QTextEdit are visible it seems impossible to change the size of the window from code. using qtcreator 3. QtCore. I use the function QSettings and QMainWindow saveState() to save the actual values. If you have set things up well, then you don't have to pick a size manually; you can just get the size from sizeHint. When I close it I want it to store its current restore size (the size of the window when it is not maximized). A window that remembers its geometry from the previous execution provides a better user experience. QWidget. Generally this is not the ideal case, as a user MainWindow need to display on the desktop, It should not be more that your desktop screen size. See also QMenuBar , QToolBar , QStatusBar , QDockWidget , Application Example , Dock Widgets Example , MDI Example , SDI Example , and Menus Example . 5. I use closeEvent to achieve this. 7k Views. qt. My central widget is a QScrollArea containing a custom widget of fixed size, call it &quot;canvas&quot;. Current code (not working) Apr 14, 2015 · I have a Qt class which inherits from QMainWindow. Jul 23, 2015 · I want mainwindow to keep approximate ratio of dock widget sizes and central widget size, when the window's size is changed. Apr 15, 2023 · I have a QMainWindow with diferents QDockWidgets docked, not floating. QSIze size = this->size(); In some cases the size may not be correct (in the constructor before the widget is completely created or displayed) until after the widget is first shown. resize(mainWindow. class MYDockwidget : public QDockWidget { Q_OBJECT public: MYDockwidget(QWidget *parent = 0): QDockWidget(parent) {} protected: void resizeEvent(QResizeEvent *event) { QDockWidget::resizeEvent(event); // Calulate Main window size here. Mar 4, 2016 · I would like to avoid calculating an initial size for the QMainWindow, because I'm not sure how portable will these calculations be. Sep 30, 2016 · Probably a noob question, but I'm still learning PySide. I need to resize the image to fit the viewer in OpenCV itself. I would like something like this self. Now I have to add this application to another application which is derived from a an Jan 17, 2023 · I generated a simple UI in Qt6 Designer consisting of a QGridLayout on a QDialog (or QMainWindow - the problem seems to be the same). and According to Qt documentation, Qdockwidget resizes and respect the size of child Widgets. self. I can put it in the . Aug 5, 2014 · Is there any way to get the width of the frame for a normal window, PRIOR to showing any windows? After showing a window, I know I can subtract the size() from the frameSize(), but that doesn't work until after the window is shown. (or if you want to get the actual size of a QGraphicsView) @Please_Help_me_D said in Get geometry and size of object that is in Layout: Aug 30, 2013 · Second (ugly) experiment solution. Sep 8, 2015 · QScreen class (since Qt 5. size()) I'm not sure how to implement this. The reason I get the correct position is that setGeometry() is called at start up, even if the file not exist. Commented Dec 24, 2014 at 9:25. This is because I need to set a QOpenGLWidget's size accordingly. In this article we will see how to fix the size of status bar such that if window size changes it will not change the size of status bar. Long story: Of course, I tried it myself. The following method computes the final size of the window setting it so it covers the 90% of the whole screen available space, and then centers it (left-to-right flow): I find it very difficult to program my Qmainwindow with 4 Qdockwidget, which the dock would fit and resize according to its contents, with other words, child widget. Commented May 5, 2016 at 12:01. OS: Windows 7-10 (not a choise) Python: 3. The minimum size set by this function will override the minimum size defined by QLayout. resized. resize(minimumSizeHint()) This will shrink the window to minimum size. 7. By default, this property contains a size with zero May 21, 2012 · And also set maximum size of window to a big value, (1000,1000) would do. PyQt5 获取当前屏幕大小 在本文中，我们将介绍如何使用PyQt5在Python3中获取当前屏幕的大小。 阅读更多：PyQt5 教程 PyQt5简介 PyQt5是一款基于Qt框架的Python图形界面库，它提供了丰富的功能和易于使用的API。 Mar 12, 2013 · I need to resize a QMainWindow on certain event, so I cannot use static setup of min/max sizes and size policies. QMainWindow. QPoint(0, 0)) since it is the top-left position. connect(self. See full list on doc. Scheduled Pinned Locked Moved General and Desktop 2 Posts 2 Posters 33. The widget's size is forced to the minimum size if the current size is smaller. screen(). It is always the other way around. In my app I sometimes programatically hide controls, but then the window remains the same size and the rest of the controls look spread out, with too much space between May 4, 2023 · I'm using a QMainWindow with dock widgets. – Mar 4, 2013 · For those looking for actual QWidget size (inner size): If you want to know the size of the widget usable space (the inner space), you need to use geometry, not frameGeometry which adds the size of the window frame to the widget own size. But if at all you want to add a fixed size widget to the main windows's central widget, probably you can use, setFixedSize method of the widget, that you want to add to central widget. Mar 1, 2020 · I am wanting to develop a screensaver from my python project, but in order to properly fullscreen it, I need to get the size of the window. Sep 29, 2014 · You can use frameGeometry() and geometry() to get the frame widths (horizontal and vertical), and you can then subtract these from your desired frame size before calling resize() (or setFixedSize() if that is more appropriate for you). width() pixels horizontally and sizeIncrement(). Note: QMainWindow takes ownership of the widget pointer and deletes it at the appropriate time. ui you can easily access these and more by right clicking the window in the designer mode and going to the "Size Constraints" option and galore you have 6 options I believe. The image management would be done in OpenCV and the GUI will be QT based. resize) but resized is not a builtin Aug 31, 2012 · The ui module created by pyuic (via Qt Designer) is just a simple helper class with a couple of initialization methods. Related. Jul 3, 2014 · However, it looks very small so I`m trying to find that the icon size is adjustable. iconSizeChanged (iconSize) ¶ Parameters. Setting a minimum size also solves it, but then it cannot be resized below that size. Please note that fonts don't scale very well when changing their size, and you should not try to change font size when resizing, as it might cause recursion. Each DockWidget contains several other 3rd party Widgets (I don't have access to the source). By default, this property contains a size with zero width and height. Sep 16, 2008 · I have a QMainWindow in a Qt application. The window looks fine when I run it o. For further information see the documentation of QWidget. Nov 12, 2024 · What I wish to know, is a way that would allow the resizing of the font ( let's say ), automatically, as I resize the Main WIndow. 0. Thx for reading. resize (330, 250) SrcSize = QScreen. Access functions: Dec 10, 2019 · Well, after creating the MainWindow, you can just call QMainWindow. Example: I use this commands to do this: MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWind Using QMainWindow is straightforward. def hideAndShowWidget(self): self. The example is really clunky, and surely there is a better way to get the height. 2. How could I set these values before the QMainWindow initialization? Nov 18, 2015 · You can call the 'size' function from any widget. QDialog(). Nov 5, 2013 · The solution I found for having a non-resizable window is to call setFixedSize on the QMainWindow after you have set up all your widgets and layouts. And I want to block the window resize. window. The easiest way to do this is to first set up a signal in the header file of your other class to say perform a function to manipulate an object in the main class like Dec 22, 2018 · imagine if i put the icon directory is in the same directory in which my project is, how will specify the path. How to set QTableWidget height under 70. My programs start minimized. I have the same or similar issues. this is the code: Sep 27, 2012 · Get current window size. Aug 17, 2018 · In UI-file I've set size policy for main window as Fixed for both height and width, I've also set both minimum and maximum sizes (for example) to 800*800 and I've written this line of code: w. size()) without errors but it's not working. Sets the given widget to be the main window’s central widget. example: Sep 11, 2020 · Note that if you want to resize the main window to the minimum possible size you should use mainWindow. To add a menu bar to the main window, create the menus, and add them to the main window's menu bar. primaryScreen ()) #Get Screen Width frmX=SrcSize. cpp, such geometry information can be accessed: QRect rect = ui->renderImage->geometry() Apr 8, 2015 · QMainWindow *mainWindow = new QMainWindow(); mainWindow->setWindowState(Qt::WindowMaximized); mainWindow->show(); qDebug() << mainWindow->size(); Which says my maximized window is 200x100, which is obviously incorrect. Is there any resized function to detect window resizing like below: MainWindow. The only way this can go wrong is if the frame widths change as a result of the resize. to get straight to problem, my mainwindow has 4 qdockwidgets, I would like to have Jan 7, 2012 · Is there any way to set the "correct" size of a QTableWidget? (I'm a newbie) This test code is only 25 lines long, in two files, with the file Test. mapToGlobal(QtCore. minimumSizeHint()), since a QMainWindow also has minimum size requirements depending on its extra widgets, like toolbars or, as in your case, dock widgets. availableGeometry (QApplication. insertToolBar (before, toolbar) ¶ Parameters Nov 10, 2009 · and setMinimumSize() as well if needed depending on if you want the user to resize or minimize the window up to a certain point. Can I set this size at will in any way? My goal is to get this "standard size" according to the currently visible widgets, when I set the visibility of some widgets on/off. left = 100 Jan 24, 2018 · I'm using python3 and pyqt4 and I want some code to run every time my QMainWindow is resized. Now you can set any size you wish in css, Considering the fact that a minimum 0 size and maximum 1000 size will give you the freedom to set almost any value Mar 26, 2020 · When we create a window, by default, it is resizable but with the help of setFixedSize() method we can fix the size of window. The top frame consists of the header and the bottom frame consists of the footer. Oct 16, 2013 · Then, change the fixed size policy to MinimumExpanding instead. The line of code I used inside my subclass of QMainWindow is: Dec 24, 2014 · Cause you set the minimum size on QMainWindow? – Tay2510. QtGui import QScreen SKapp = QApplication () MyPyForm = QMainWindow () #Set Form's Location and Size MyPyForm. Copied fromSO Ans Feb 10, 2019 · After searching for a way to determine the height of window title bars, I finally came up with a way to obtain this value. At first glance css property background-size is not supported, border-image would strech the image. But if I manually resize the QMainWindow with just 1 pixel, or just modify width, the height of the central widget automatically decreases by 21 (so it is now 400x279). I know in the mainwindow. – class MainWindow (QMainWindow): Code language: Python (python) PyQt divides the QMainWindow widget into some sections as shown in the following picture: Note that you should not set a layout for the QMainWindow. horizontalHeader Apr 13, 2017 · This was useful for me because I want to get dimensions inside QMainWindow """ allow you to get size of your current screen -1 is to precise that it is the I trying to get window size but I getting incorrect size, first of all I set window geometry to 800 x 480 and result is 640 x 480. QtWidgets. width () #Get Screen Height frmY=SrcSize It is the position and size (relative to the size of the main window) of the toolbars and dock widgets that are stored. As you said, use QMainWindow::resize() , adding the toolbar and statusbar height to your central widget to get the final result. This is kind of a dirty work-around I'm fully aware of the fact, that this is not clean. 0 – Aug 5, 2016 · Ideally the size should be fixed to the size needed by the contents (w/o the scroll area) and only smaller where needed. iconSize – PySide6. But, when I play with the maximize and minimize QMainWindow buttons, I get the QMainWindow bigger then the screen size. If you want to only shrink in height, then you can do something like: This property holds size of toolbar icons in this mainwindow. QtWidgets import QMainWindow, QApplication from PySide6. In your case, you would need to create a class that derives from QMainWindow and reimplement the resizeEvent function. PySide6. The default is the default tool bar icon size of the GUI style. As of now, it doesn't happen. Sets the size increment (size) of the window. A checkbox to hide/show the right-side widget m_liner. – setSizeIncrement (size) ¶ Parameters: size – QSize. I'd like to be able to set the initial size of ca Oct 28, 2019 · don't use the table width to compute the position (and width) of columns, as it would give unreliable values: you're using a division that returns a float value, while setting each header section size results in an integer size; if you use the Stretch mode as written above you can get the accurate section start from self. someFunction) Sep 17, 2019 · You should use QWidget::saveGeometry() to get the window size and QWidget::restoreGeometry() to restore it, for instance with QSetting. But any of them doesn't solve my problem. The code below does this except: If both widgets are shown, the minimum window size is 600 pixels. Jul 27, 2017 · I am new to GUI development and I am trying to learn how to use pyqt5 in python. Access functions: iconSize() setIconSize() property tabShapeᅟ: QTabWidget. In order to do this we will use setFixedSize() method. 3 PyQt: 5. I want the overall QMainWindow to expand when showing the widget, and shrink when hiding. In order to perform custom handling of the event, you'll need to create your own resize event handler. png? for the resource file i've found that i can create it by adding it to the project directly by file|new file but how ill specify the resource file if it is added to the current project? for setting the icon application icon i don Oct 27, 2015 · I also need the background to resize on MainWindow resize. Here is my code at present. When the user resizes the window, the size will move in steps of sizeIncrement(). If you are using QT Creator and a . property PᅟySide6. animated: bool #. setCentralWidget (widget) ¶ Parameters: widget – PySide2. thanx. You can get a size grip to show like so: Jul 27, 2009 · Join Date Jul 2007 Posts 121 Thanks 38 Thanked 3 Times in 3 Posts Qt products Platforms Nov 25, 2020 · This is all in the main window constructor. Shrink the window to this smallest size. So, I need to set:-> The QImage size-> The graphicsView size. Thanks. What i don't understand is that the geometry returned by desktop() >availableGeometry looks like to be incorrect. UPDATE : I have a QMainWindow with a QTableView as a widget, amongst others. setFixedSize(self. I want to save and restore the size of this QDockWidgets docked. A QMainWindow has one Mar 7, 2015 · When I create a QMainWindow without explicitly specifying its dimensions, PyQt will give it a -let's say- "standard size" which is not the minimum that the window can get. table. I designed it using the PyQt4 designer. Feb 15, 2023 · Regenerate that code from the UI, leave it untouched and create a QMainWindow subclass that will use it, as explained in the official guidelines about using Designer. QtCore import QRect class Window(QMainWindow): def __init__(self): super(). If I then toggle the action twice the main window size then is bigger. Get the geometry of the display and set the fixed size of the QMainWindow to the corresponding values. The constructor of the class creates two widgets which are added to a horizontal layout object as follows: MyWindow::MyWindow() { resize( Oct 22, 2013 · I have a QMainWindow containing several QDockWidgets. Adjust if needed (task bar?). widgetObject. It then goes on to restore the reduced size main window using MainWindow::restoreGeometry(geometry) also from the settings file stored at shutdown with QMainWindow::saveGeometry(). So I'm trying to use QMainWindow which has a QFrame and the QFrame has two labels. It is inherited from there. Jul 5, 2021 · from PySide6. For that you need to subclass QDockWidget. Let me know if it works! Apr 20, 2019 · This has not been satisfactorily answered. Nov 23, 2017 · Size policies of the individual widgets dictate how they might shrink or be expanded vertically and horizontally. This works well when I close the window in r I found a similar question QWidget resize signal? and this tutorial to handle size that recommended overriding resizeEvent method of QMainWindow. 0 based on qt 5. Note that the icons used must be at least of this size as the icons are only scaled down. And I cannot get even the simplest thing to run. Syntax : self. Here is the code: class MainWindow(QtGui. This would at least allow you to check the screen resolution at the start of your application. QSize. This is the whole of my code: from PyQt5. But what if we want to resize the window up-to some extent; in order to do this, we have to set the maximum size of the window. I want a window with some checkboxes,combobox and radiobuttons on the right Feb 5, 2016 · Resulting geometry: 1600x1150+0+22 (frame: 8, 30, 8, 8, custom margin: 0, 0, 0, 0, minimum size: 780x539, maximum size: 16777215x16777215). py file generated from Qt Designer or explicitly using: QtWidgets. Generally, you subclass QMainWindow and set up menus, toolbars, and dock widgets inside the QMainWindow constructor. I've written simplest mainwindow with central widget and 6 dock widgets: # Mar 19, 2012 · It is not possible to set the size of the QMainWindow based up its central widget. h: #include <QtGui> class Test : public QMainWindow { Q_OBJECT public: Test(); }; Feb 12, 2015 · I have QMainWindow with widgets, all the widgets have layout. height() pixels vertically, with baseSize() as the basis. Mar 6, 2013 · Kindly advise, and also if there's another way ( perhaps more elegant) to set the size of the QMainWindow. Feb 27, 2020 · By using the showEvent you can get the actual size, before your window gets eventually resized by your window manager and before the layout rules apply. But you should consider that the minimum size is not computed until some events are processed in the event loop. Feb 20, 2019 · Now I want to get the actual position of the widget in the QMainWindow in renderimage. To unset the minimum size, use a value of QSize(0, 0). This doesn't have any effect: calling resize() on QMainWindow and/or it's central widgwt; creating own QResizeEvent and calling resizeEvent() on window Nov 25, 2014 · I have a main window with three frames. 80. Both methods take an instance of the top-level ui class from Qt Designer (usually a QMainWindow), and then add the all the ui elements to that instance. Jan 6, 2023 · In PyQt5 when we create a status bar the size of status bar changes with the size of window. This shows the correctly sized main window. Below is the example code I am working on. Oct 24, 2009 · After I show the QMainWindow, the size is the same. ybp lgdfhu ocdtv zpnig ysopp orxflfoe crbn xzdpgm wnbtlx xvz