Qt widget not resizing MouseButtonPress: if event. How to program resize widget like Qt Creator (Not using QSizeGrip) 1. So when ever FourWindowWidget get resized its child widgets should be as per ratio set. How can I add a simple vertical layout to centralWidget? I tried opening the ui-file with notepad++ and I have a MainWindow with a single child widget (TerminalDisplay), which size depends on font size in it. If you use Designer to produce . However, I'm hoping the layouts is not the issue. When I changing the font size I call this method: I am using a Xenarc TSH700 touch screen. Hello fellow Qt developers, right now I am working on resizing some custom widgets (Named "Pods") (Derive QFrame, member widgets: 2 scroll area both containing labels) within a vertical box layout. But I am unable to do this Resizing inside paintEvent seems to be invalid (or at least unusual). when it's actually shown. When a toolbar button is clicked, a child widget (a game) is shown, overlayed on the main content area. No, you do want to redraw every time the main window resizes. Groupbox has max height. But this Widget has the size of the mainwindow and I can't scale it. The documentation on Qt borderless windows states that "The user cannot move or resize a borderless window via the window system. I have read more than a few tutorials and did not find any resizing application, it seems that fixed height/width is the standard. Instead of having to call adjustSize() on showing/resizing/whatever (and btw here, is it necessary to call adjustSize() in the show/resize event, not just after w. and in my mainwindow i have created by code my custom widget using: Form * f = new Form(ui->widgetadd); If this is your first visit, be sure to check out the FAQ by clicking the link above. Initially, it appeared they did. The layouts are shown below. 7 gave the following output, on the right side is my object inspector. I do not know what this means. When I change font size to greater then current, parent resizing works fine, but if I change it to less then current font size my MainWindow leaves blank space and do not fit to the child. Oddly If I understood well what you are saying, the contents of the form are not "connected", i. I found out that QTableView has the columnResized() slot, and the only ways to do it I see are either subclassing QTableWidget or resizing columns again and again on the I need to update the QSplitterHandle position when QSplitter child widget is resized due to other reason, than moving splitter handle. I have a QGroupBox that is set as widget to the QDockWidget using setWidget() function. It increases the abstraction level of the layout by providing a way for developers to express the relative positions and resizing behavior for each child control. I recommend to read this: Setting A Top Level Layout. The tab itself has a vertical layout. I use This is so Qt can do automatic resizing if the user resizes the form at run-time. How to programatically resize a QMainWindow to its minimum size. This (the new data point) is with a grid applied to the Qt QStackedWidget Resizing Issue. 2 on Debian sid, using KDE), but clearing the Qt::FramelessWindowHint flag got the normal window border to show up. In other words, paintEvent should only repaint the view Hi Space, There is a GLWidget on both sides of the QSplitters. Follow Qt Layout for resizing. py file code from it or you can use UiLoader thingie to load the file dynamically at runtime instead of generating code for it. active resizing of widgets inside mainwindow. The problem I am facing is that one of the docks can't be resized at all unless it is first undocked (made floating and then re-docked again). If you really want resizing to the current items, try expanding QLabels inside of a layout. the problem is that while the widgets are added, the layout doesn't resize correctly, such that the widgets are way too small and their content is not visible. Any Ideas? Thanks @jsulm I have a question on this, which I have never understood fully in Qt widgets. Yes, infinite/recursive calling of resizing across the two widgets is likely to happen given what you are trying to do. I've checked every setting, I just seem to be missing something. If the widget does not have any child widgets, or uses manual layout, you can change the behavior of the widget using any or all of the following mechanisms: Moreover the widget is not correctly repainted, some bad button fragments remain visible. While this can be done using QLabel. And Yeah, Glut was redundant :-) Thanks. Hot Network Questions The year of publication of the reference I search for these kind of problems by changing item's background colors e. I am using a Xenarc TSH700 touch screen. That said, what you're trying to achieve can be done, with some caveats. Hi, I have a QTableView, QListView, and QScrollArea. Adding a layout to the page does not seem to do anything, the layout just stays at whatever size it's designed as, and will not resize. When you add QGraphicItems on a QGraphicsScene/View, the size of the scene/view grows to accommodate wherever the items are placed. Custom Widgets in Layouts. This simple task seems impossible to do with Qt Creator. 8. Performing other calculations related to the widget's dimensions. Resizing QMainWindow; QtWS: Super Early Bird Tickets this is because I want shrink the window to it's original size minus result widget size and not to it's minimal size, but that's just detail. Even other widgets like QLineEdits or every other custom widget, that you can put in a QToolBar will work, when you do it like this :) That you can not pass widgets to WidgetAction to stay more flexible, is very unfortunate and A little tip: dragging a layout to an empty widget doesn't make it the widget's top-level layout so it will not be auto resized. The steps above should fix it. 7 tested). This works nicely when a user maximises or minimises (double-clicking) and also when the user resizes (by dragging) the widget along only one axis. Pixels inside the region will be painted, while pixels outside the region will be transparent. But In the designer I've got an tab with two widget which have been promoted to the custom QPlot widget. I have also tried placing the qCustomPlot widget directly into the dock. This is (I think?) because the layout is While QWidget::sizeIncrement is a useful tool for controlling widget resizing, it can sometimes lead to unexpected behavior if not used correctly. Set the minimum, maximum or fixed sizes or widths/heights on the widgets. 6 Posts 2 Posters 2. Qt Widgets supports installing a layout manager, represented by the QLayout class, inside a widget, which makes the framework handle positions and sizes automatically for us. In my mainwindow i have a QWidget pattern, it's name is "widgetadd". It means the widget doesn't have a layout. I don't use a stacked widget because the size between the game widget and the main window central widget is much different. So check this icon. 3. Hi All, I want to arrange my widgets in the window row-wise with a minimum size so that when the outer window is dragged, the widgets take up the space of the window row-wise (not lower than the minimum dimension). The tab widget expands to the size of the QHBoxLayout as expected, but wheen I run the application, when I expand the window, the tab widget remains 1 the same size(the hbox is not expanding on resize) I have the tab widgets size policy set to expanding. In my Application i am having a properties window which is a QDockWidget. Initially, the QMainWindow is shown with no problem, then when I try to change the current index of the QStackedWidget (which results in resizing the whole window to be adjusted for the new index widget) the QMainWindow have some glitches in painting, a solid Most importantly, once a window is already shown, it usually try to keep its size even if its contents change, and will only update it when necessary: consider that when a window is shown the first time, it has a size that is normally bigger than its minimum possible size, and when the DPI change it will eventually force its resizing only if the new computed minimum @jsulm For example, a widget taking up two rows and two columns in a QGridLayout, but in the VBox-HBox combo. Layout Conflicts: Layout management If the widget is part of a layout (e. This is caused by a long-time internal Qt issue (I remember experiencing it first with Qt3). It changes when I remove any other widget around it like closing dock widget. Here are some common errors and troubleshooting tips: Incorrect Size Increment Values: Too large values If the size increment is too large, the widget may become difficult to resize, especially for smaller widgets. I suppose I could spend time trying to search for some program that does use more than one pane side by side and doesn't resize all of them I am having a problem with resizing my gui's made from Qt. in frameless widgets. @JoeCFD What is the point of resizing automatically for content size, if I have to specify the row height? This is seeming like a broken feature. So far everything works fine: ! I have used the following code in my widget class to make the resize happen: void LineWidget::resizeEvent(QResizeEvent *) { m_defaultChartView->resize(size()); } So for some Can't get my widget to auto-resize my app has a QPlainTextBox in a QHBoxLayout (in a QWidget). @Niagarer I hope I'm right about this --- I stand to be corrected. Configure QWidget to fill parent via layouts. If you have a widget with this icon and it has child widgets, then maybe something need to be fixed. Using the advice in Why mouseMoveEvent does nothing in PyQt5 I've created a sub class of the QTreeView: class TreeView(QTreeView): def mousePressEvent(self, event): if event. So, what do I have to do? My Qt widget has a function to draw a line based on point (x, y) input from text file. Note that again, the scroll bar is still the same size as in previous images. A QDockWidget acts as a wrapper for its child widget, set with setWidget(). Viewed 7k times An alternate solution is to not use stacked widget at all and instead make one Widget for each page and then In every case, when I run the resulting executable, and resize the main window, the layout(s) along with all associated widgets remain fixed, rather than resizing with the main window. When I changing the font size I call this method: I used: setFixedSize(size()); to stop the window from resizing, but the resize arrows still appear when the mouse is over the border of the window. I am new to Qt and have tried searching for clues as to why the slider is so small on the screen. Create a new GUI project, open the form, drag a Dock Widget onto the form and set its dockWidgetArea to RightDockWidgetArea, drag another onto the form and set its dockWidgetArea to LeftDockWidgetArea (you now should have two dock widgets, one on Dear all, I have two identical projects, one uses QtDesigner to load some widgets and the other loads them directly from code. the problem is not blocking/unblocking the signal - or when connecting the signal - but having an event which tells me WHEN doing it. It doesn't matter when I call show(), I find I have to do the "fit" in showEvent(), i. Hot Network Questions Existence of non-discrete Tychonoff extremally disconnected P-space and measurable cardinals What is the connection between measure theory and I'm using the qt designer with a QMainWindow and in that a QWidget contained a QStackedWidget so my program can have several different widgets. If you want absolute placement, the simplest way is just don't use the layouts, place things directly on the MainForm. g. Am I better off creating a custom layout class? I assume that's very difficult, but I can probably manage it with time. In both of them i wanted a widget to be resized when the user resizes the window. Even after precisely performing all steps in the If however I put this widget into the menu (Option2), I cannot resize it anymore. By experimenting, I found out (I guess this whole problem is in Windows GUI and not in Qt --- but that's merely my opinion). Besides, i am using mousepressevent for draging @void CropFrame::mousePressEvent(QMouseEvent I have the code for my layout wizard, but I'm not sure it's going to do any good to provide it, because my problem is design -- I can't figure out where to take it next so that I can enable proper widget resizing. . Qt resizing child widgets with the parent. Qt QStackedWidget Resizing Issue. I have a MainWindow with a single child widget (TerminalDisplay), which size depends on font size in it. So, first I resized th2 2 columns to the content with: self. The problem I'm having is getting things to resize with the QMainWindow, it seems anything inside the QStackedWidget doesn't resize with the window, how can I fix this? @jsulm said in Resizing the widget(listwidget): I'm talking about "widget" variable, not listWidget. , not resizing and not Is the feature of resizing the Dock based on a size policy (QSizePolicy)? Is the free resizing feature of a Dock enabled by default or do I have to activate it by myself? Note: I was checking my code and I am not calling any setFixedSize() method or any kind of restraint action related to the widgets dimension. This is not Qt's problem, it's yours. You may want, for example, some of the widgets to grow in certain directions only, or not at I'm sure you're aware of this, but others reading this might not be. More than that, a widget generally should not resize itself. , Resizing in the sense, whatever is rendered is going off when I try to reduce/increase the window size. This event seems to be always received after the resize event generated by the layout, and therefore it is always too late to shrink the widget. Dear all, I have two identical projects, one uses QtDesigner to load some widgets and the other loads them directly from code. It is possible to use setScaledContents to make QLabel scale the pixmap and allow for resizing. resizeColumnToContents(0) This is because when the widget constructor is executed, the widget size is not the "final" widget size. I have a QScrollArea, and I want the widget inside its viewPort to be resized to the maximum viewport size. 1. I have already experimented with i am new to Qt and i am struggling with resizing things , but layout does not work in my case as it expands the widget according to the Main Window. type() == QEvent. " – cgmb. @jsulm I have a question on this, which I have never understood fully in Qt widgets. So I create a HBoxLayout for the centralWidget, and add a QWidget and a VBoxLayout(which contains the four buttons) to it. Also, table widget doesn't have a setRowMinimumHeight or setRowMaximumHeight method. [/quote] @ametefe said in PYQT5 Stacked Widgets not resizing:. How to resize qt dock widget to fit qCustomPlot widget? Re: Qt::FramelessWindowHint resizing a widget To be clear, the frameless version is the correct size, i. show() which only sets a flag for show), is it not possible to set a size policy which would make Qt do this for you automatically? Hi, I'm trying to disable resizing on a QDialog containing a progress bar with the following code: @ QDialog *dialog=new QDialog(some_parent_widget, Qt::Dial Qt Widget Masking with QRegion . Dragging the QSizeGrip changes the size of the Menu but not the Widget. QGridLayout Resizing. I have a MainWindow, under it a central Widget and then added a Widget from the Widgetbox. Just a note about a dock widget (Qt 5. In the project that does not use QtDesigner th This could be happening because the widget size is recalculated after you perform your resize. Widget inside another widget Qt. So I have two identical projects, one uses QtDesigner to load some widgets and the other loads them directly from code. How to set central widget fill in the whole main window in Qt. (cont) – A little tip: dragging a layout to an empty widget doesn't make it the widget's top-level layout so it will not be auto resized. I've tried the following things: setting QSizePolicy to widget. I'm having a problem with my Layouts in QT. A little tip: dragging a layout to an empty widget doesn't make it the widget's top-level layout so it will not be auto resized. Hunt up the widget hierarchy, invalidate, adjustSize. 10 pixels wide, 50 high. Im trying to achieve a List of widgets which can be expanded and contracted in the following manner: (this is important), but the second widget does not replace the space left by the first QTextEdit. The first two images are from Qt Designer, the subsequent 3 are from the program running. LeftButton: print( "Left click") elif I have the code for my layout wizard, but I'm not sure it's going to do any good to provide it, because my problem is design -- I can't figure out where to take it next so that I can enable proper widget resizing. 0k Views Hi , I am facing a problem when resizing a QMainWindow that contains a toolbar and a QStackedWidget. Purpose. The top widget needs to receive an event to truly update its geometry, and know its boundaries. I have a hidden widget in my dialog. I thought that by layout they meant dropping one of the very top 3 components from the Qt Designer toolbox onto a form and adding all widgets to the layout, as I did not know that layout was something different and had to be accessed This sample code creates a new qCustomPlot widget, places it in a layout, places that layout in another widget, and sets it to the dock. You may have to register before you can post: click the register link above to proceed. From Qt documentation on QGroupBox:. show() which only sets a flag for show), is it not possible to set a size policy which would make Qt do this for you automatically? Is this a duplicate of How to make a Qt Widget a layout, my test on Qt 4. I did just put in the widgets and layouted them, i did not the red crossed icon I added a widget to the layout in my central widget. the best way to see You can check this in Qt documentation or try this: add any element from the qt creator and drop it to your mainwindow, then right click ->layout -> choose the layout you Here are my specific issues: 1) When adding a tab that requires a minimum amount of space to view all its child widgets, how can I grow my main window to fit this tab The QScrollArea does not resize the internal widget in any way, just displays some or all of it. qCustomPlot setGeometry, setMinimumSize, and setSizePolicy seem to have no effect on the dock height. 111. Only users with topic management privileges can see it. there is no vertical layout), Qt resizing child widgets with the parent. I have the code for my layout wizard, but I'm not sure it's going to do any good to provide it, because my problem is design -- I can't figure out where to take it next so that I can enable proper widget resizing. Usage. Furthermore, it would be nice to see the code with QSplitter, too. 11. Add the green widget to the I have not seen many people having this problem, but I have found this issue which makes my desktop application feel slow. The use case is the following: The widget, let's call it container, is floating, i. Also, I'm doing this from within QtCreator. If I put some FlowLayout widgets (wrapped in a The GLWidget is not the only widget of the window. I've read the Layout Management page, and I don't see what I'm missing -- vertical I have the following layout in my Widgets: Widget 1: A QWidget (named extWidget) and a Groupbox containing pushbuttons in a vertical layout. QGroupBox doesn't automatically lay out the child widgets (which are often QCheckBoxes or QRadioButtons but can be any widgets). The grid is not filled yet at (0, 1) and (0, 2). Oldest to Thanks for your reply, this looks good, although it there any Qt Moving a window between places on the desktop, whether on the same screen or not, does not change the size of the widget in pixels. Can't get a widget to grow properly when I resize the window. Controls the visible region of a widget. If you are going to have two widgets, each of which causes the resizing of the other, you are going to get a "ping-pong" effect because that is precisely what your logic does. I am sure it's something to do with Qt functions and not GL. Nothing. To start viewing messages, select the forum that you want to visit from the selection below. It only has setRowHeight. For QListView Well. When you maximize the window the Table View stays the same size as it was created with. I have read the docs on the layout management, but was unable to make it expand As a result - as expected - resizing main window does not do any resizing for the 500+ widgets I created with Qt Creator. Particularly, I have the composite widget inside the splitter, and one of it's children is hidden. As you can see in the code I said variable "auto listWidget = new Qt resizing child widgets with the parent. Though, I was unable to do the "click 'Lay out' and pick the layout you want as toplevel layout", as everything except 'Adjust size' was greyed out. Do you have any other way to call another widget. g yellow (setStyleSheet("background-color: yellow;");), and watch what widget/layout does not resize. The exactly same thing happens with bottom widget, but not with top widget that has very fixed position and size. For the QTableView it automatically grows vertically to the height of the available screen before scroll bars are shown. When I show it, I want the dialog window to expand accordingly and shrink again when I choose to hide it. I would not expect a resize event unless the widget is actually resized. , QHBoxLayout, QVBoxLayout), resizing the widget directly might conflict with the layout's rules. Although not a minimal solution you could probably fix the alignments by adding a QHBoxLayout in the cell for the green widget and a QVBoxLayout in the cell for the blue widget. 2025-01-13. Created Qt Creator Resizing Widgets in Design Tab. However, this will ignore the aspect ratio of the image and scale the pixmap to fill the If we consider any normal widget, just by moving the mouse to the boundary changes the shape of cursor, and we can resize that widget, can't we just restore the same resizing ability with same features of cursor shape change etc. e. The widget just attaches to the center and does not I have a couple of QDockWidgets in my QMainWindow. That's why I render it I have used Qt Designer to create the UI and some code to fill all the widgets and other stuff. Scheduled Pinned Locked Moved Solved General and Desktop 5. Functionality. Resizable window after fixed size. int n=4; QWidget *myWidget = new Hi all. They are entry widgets, and designed to allow more data to be entered than can comfortably fit on the screen. – hello! i have the following structure: QWidget->QWidget->QBoxLayout-> where QWidget1 to QWidgetN are inserted one after another while the top-widgets are visible. The touch is working fine and I can interact with all the widgets. How to make a Qt Widget grow with the window size? 1. The QPushButton is displayed correctly if the window is resized. Reading the docs and searching Google and SO, it seems that using a layout in the centralwidget I have a MainWindow with a single child widget (TerminalDisplay), which size depends on font size in it. This resize is expected, or say I don't want to make it fixed. But this time, I can't move the widget I added to the position I want (vertically). Call updateGeometry() when The official documentation states the following:. button() == Qt. Here is what i did. I made a "widget" in Qt Designer with about a dozen controls organized into horizontal and vertical layouts. There are several offerings for options. The Qt::Window flag was already set for floating QDockWidgets for me (PySide2 5. How to change the size of child widget when the parent size changes? Hot Network Questions Now the problem is now View1 have fixed size but size of FourWindowWidget is not fixed. statTable. How to resize widgets on a window when the application is running? 4. Qt Widget Height Retrieval . In full screen basically they don't scale to the available space. 9. Are you using many different widgets since subclassing it is not an option? I am using many difference widgets, i was just curious if there was a way to override sizehints on the default widget classes. Horizontal resizing is enough since all widgets, including the container itself, will have the same height. How to make a Qt Widget grow with the window size? 3. The problem is that the main window shakes when resized regardless of the approach — it looks especially terrible when I put a widget in the right docking area — it looks like the content near the right main window border is being repainted several times with different width during the resizing (in the case of dock widget the whole widget trembles). 6. This layout is then added to the It is a common problem to display a QImage in a widget. You should create that stuff elsewhere as needed, store that stuff in a QPixmap or something and just redraw the image in the paintEvent function. I used to increase my I'd like to manage width of my columns in a table personally, but after resizing them from the code, I cannot figure out a way to prevent user from resizing them manually. You can use the returned value for various purposes, such as: Determining the size of a widget. ui files, you can either run the Python uic to generate Python . Looking at this, it seems that a widget with Preferred would not grow bigger than sizeHint() when next to another widget with Expanding. 10. This all works fantastically, yet whenever the widget is resized, the child window stays the same size and thus its' content is partially invisible. Since my picture is 640x480, I want it to resize the picture to fit the window size, so user can QT Designer: Moving & Resizing widgets For a University project, we're starting up Qt with another program and then setting one of Qt's Widgets as the parent to the window of the other program using SetParent(). It's still not resizing. In the property window the geometry settings are also grey. Qml application is Yes, it cannot be part of the layout of the main window area because the widget I have to render on top of it is semi translucent and the widgets below should be visible at the same time. You could also place a "container" (Group box, Tab widget) inside a layout and place components inside that; the containers don't act like Layouts. My only idea on doing this with a VBox-HBox combination would be stretching the HBox to be two "rows" tall, @Pl45m4 said in QTreeView child of QMainWindow not resizing with main window:. Ask Question Asked 10 years, 8 months ago. You are just asking to redraw a square of size 300. I looked at my resizing code as you suggested, I still have the issue. In such cases, it's often better to adjust the layout's properties or use the layout's @Artofka I'm not the expert, I just play with Qt's layout stuff till it does what I want/I beat it into submission! ;-) But the point of a stretch is to fill/take up space (it's a QSpacerItem, "The QSpacerItem class provides blank @brent-avermetrics said in Resizing docked widgets without stretching others: @SGaist Thanks for chiming in, but unfortunately an answer along the lines of "your desire is not valid" doesn't really help solve the problem. Whenever I dynamically add child widgets to group box, the my QDockWidget is automatically getting When a widget is placed within a layout-managed container (as it normally should) that can represent multiple issues. not part of any layout. If I resize the window so that the QScrollArea grows, then I see this: Qt Widget Resize Function the widget will not be resized. SO if this slow resizing is caused by the re-reading file every time the window is resized, are there any way that I fix this? 1 Resizing main widget after removal the internal widget Scheduled Pinned Locked Moved Unsolved General and Desktop 6 Posts 3 Posters 1. Resizing qt widgets when their children are hidden. This does not do any resizing, nor would I expect it to. I am not sure how to stop the signals and slots to mess up the resizing if they does, but I can assure you the resizing happen even if I don't release the splitter handle (it just resize in a glitchy way as pictured above). One such way to do this is with a class provided by libqxt. Not only you've to implement the whole mouse interaction to resize the widget, but you also need to notify the possible parent widget(s) about the resizing. Hi there. Does the resizing work properly if you just compile the above code verbatim? If so, then it's a matter of figuring out what is different between your viewcontainer widget and the QGraphicsView widget in the example. In the project that does not use QtDesigner that happens perfectly well but in the other identical QtDesigner project it does not resize at all. setting QSizePolicy to the other widgets in Hi, From what I can see you are currently not modifying your item geometry. After adding a QWebView widget to the main layout of the main window and loading the html code, if I resize the window, the contents of the QWebView seem to be lagging while resizing. When a button click is performed, some images will be constructed inside in a QGraphicsView/Scene and they are added to a QHBoxLayout. I've I'm developing a software that gets a pictures from a CAM and put it in a widget window. You should reimplement sizeHint() to make layouts know preferred size of your widget. I want to create a widget similar to the KDE (or Gnome or MacOS) system settings (e. It is embedded in splitter together with a group box. 13. When I changing the font size I call this method: Hmm, I do not hink you can catch with eventfiler so I think subclassing the only way to override sizehint. Calculating layout constraints. But this does not show any differences. Is there a better way to disable window resizin Skip to main content. Resizing a widget based on its height. Modified 1 year ago. When I changing the font size I call this method: Reference questions:: Qt Scroll Area does not add in scroll bars, How can i make widgets overflow to make a scrollbar appear in Qt? Question:: I want to have a dynamic layout of a set of widgets within a QScrollArea. I'd like it to grow vertically with the Widget. Also, if you need to ensure that widgets resize whenever their @ametefe said in PYQT5 Stacked Widgets not resizing:. A rather exhaustive layout shaking that just will not work if you are attempting to re-size the the main window. I want to draw a line even when the window is resized. shrink parents widgets after child size changed. I can manipulate the size of the QPushButton widgets and the QLabel widgets but nothing I do will increase the size of the slider groove. Each dock widget contains a different custom QWidget and has been added to the main window using QMainWindow::addDockWidget(). Don't set Qt::AlignCenter. When you make your own widget class, you should also communicate its layout properties. As soon as a widget is added to a layout, you'll loose the possibility of resizing it with handles, as the layout will resize it whenever it finds it necessary. Probably I didn't explain myself enough clearly. The group box is having many child widgets and they are laid out using QVBoxLayout. The best I've got so far is to re-implement showEvent() on the parent widget, setting minimum sizes on the splitter's child widgets and then in resizeEvent() setting maximum sizes on the same widgets. qt; qlayout; Share. I have done Qt QGraphicsItem stuff, though without using any layouts. 4. If the widget has a one of Qt's layouts, this is already taken care of. , like this picture) I already implemented a FlowLayout from the Qt docs exampe. How to resize widgets on a window when the You've got the right idea, but if you're using Qt Designer to lay out your widgets, you can add the layouts and specify stretch factors etc, as well as setting sizePolicies Resizing table widget when window is maximized. The call to QWidget::show() was also not necessary. Qt: HBoxLayout QLayout::setSizeConstraint(QLayout::SetFixedSize) solves this problem well when you prefer keeping your widget's size fixed at all times — that is, if you'd like it to always be fixed to its "packed" size (which may still vary as the child Hi, I seem to be having a issue when I insert a Table View Widget inside my Tab Widget. The problem appears to be getting the QMenuBar to recognize that the widget's size has changed. 7. Why not? It today's hunt for an answer still did not come up with a viable answer. No, not quitehere is a simple test case for you that I hope you can adjust to suit your needs. Custom size hints, minimum and maximum sizes and size policies should be implemented in the A little tip: dragging a layout to an empty widget doesn't make it the widget's top-level layout so it will not be auto resized. Horizontal length and scaling is exactly what I wanted. This often causes recursion problems or looks strange because the widget resizes in ways the user has not requested. I am trying to start my app maximized with the midget also maximized inside the MainWindow. I think I misunderstood the correlation between the layouts in Qt Designer and the layouts mentioned in the tutorials. However, when you delete items the I am using a Xenarc TSH700 touch screen. 8k Views. I observed that this does not happen if the grid layout is the main one (i. Set the size policies on the widgets to reflect the behavior you want. I dont see much change with reference to that. I also need the widget to respond to the resizing of the main window, tried a few things but not quite got it working When I run my program it will display all content properly, and when I resizing the main window, the layout along with all associated widgets remain fixed, rather than resizing with the main window. Whether I call setRowHeight or not, I get the same result. Call the function on a QWidget object to get its height. I have a QMainWindow that has a grid. Qt viewport widget is not expanding during new child widgets addition to QBoxLayout. Allows you to define a shape that determines which parts of the widget are painted and which are not. If I promote it to QCustomPlot Widget I can't scale it @nulluse said:. The QTabWidget (blue one) you use as the scrollable widget will have either While QWidget::resize() is a straightforward function, there are a few common errors and troubleshooting tips to keep in mind: If you provide extremely large values for width or height, @ametefe said in PYQT5 Stacked Widgets not resizing:. I currently need to let all widgets in my window automatically resize when I expand the window. The framed version looks like a minimum width is being forced to accommodate the window controls. I'm trying to implement a context menu in a QtTreeView Widget. 0. Using Qt designer, I drew my mainwindow and in a new file, my custom widget. Improve this question. On a side note, you item having a pointer to the scene that contains it is a bad sign. Also the main window' widgets can not be moved when the game widget is shown. This answer How to auto change QPushButton width and QMenuBar corner widget width when change text of button? suggests resetting the corner widget. I have my class Dialog derived from QDialog and I have redefined resizeEvent() method, as follows: #include <QVBoxLayout> Dialog::Dialog(QWidget *parent) : QDialog(parent) { sa = new QScrollArea(this); sa->setMinimumSize(400,300); sa Software user can easily by accident grab it while operating the top widget, and start resizing the central widget. Ignore minimum size when resizing QWidget. This is my UI with a grid layout applied to all child objects: This does not do any resizing; I thought that it would. Try to invoke the resize using QTimer::singleShot(0, this, SLOT(resizeToMinimumSize())); (you have to create the resizeToMinimumSize slot, of course). When I changing the font size I call this method: In my UI design, I want four QPushButtons stay on the right side of window. Yep, I do realize this :) After the constructor is called you call "show" and then it calculates the size of the ui elements. setPixmap, the resulting QLabel will have a fixed size equal to the size of the pixmap. The stretch factor for the I am trying to scale the QCustomPlot Widget, but it is not possible. But your design is somewhat weird, as you are creating random stuff inside the paintEvent function. This will make sure the resize is executed after the widget is laid out and the widget should I'd like to have a QWidget instance that uses a QHBoxLayout and (ideally automatically, but upon calling some function is fine too) resizes horizontally to fit its contents. 1 qwidget qgridlayout. There is an example showing how to This topic has been deleted. It's simply not what the items you are using are designed for. 5. Qt resize widgets in linear layout with mouse. 2024-12-13. there's nothing which assures me that from that moment no resize will be called again by the system, something that tells me "ok everything has been created, resized . It's name is "Form" (of corse Form extend QWidget class). i want the widget to be of the same size but be positioned properly I found I also had to set the widget's size policy to QSizePolicy::Ignored in both directions to avoid odd resizing issues resulting from the size requests of child widgets—the end result is that my widget accepts whatever size its parent allocates to it (and then sets its margins as described above to keep the desired aspect ratio in its content area). the best way to see what i mean is Resizing qt widgets when their children are hidden. I already tried to put everything into a QFormLayout and then the QFormLayout into a QWidget. Since most window systems do not allow the main window to be resized appropriately, the best solution is often to constrain a child widget rather than the parent. Doesn't work. ceexy cgihi zkmjh rxpmp xqrvs ydpz ugqfc tkqyb hycts mbfgfl