Qt Scale Widget, the problem is my application should run in differe

Qt Scale Widget, the problem is my application should run in different desktop. Compass widget On the #pyqt channel on Freenode, epifanio was creating a compass widget. Since most widgets are about 20 years old, they are meant to be run on a PC with 1920x1080 resolution and a scale factor of 100%. To render using OpenGL, simply call setViewport (new QOpenGLWidget). Apr 11, 2018 · How would one go about introducing scaling to widgets such as a QPushButton when running on low/high resolution displays? For example, an application we have has a side menu widget running vertically down the left side of the screen. . What I did was I hard coded the size of Widgets according what seemed good on my Laptop. h. Qt creator 4. Apr 23, 2013 · Now I wanted to know whether it is possible to apply these scales globally on all widgets by some function? Since I have created widgets in many classes & also with . i want to set size percentages of a qwidget that how much percntage they cover in a QWidget i would like a easy way to do that Hi Did you try the layoutStretch It tells how to share the space. You could go through all widgets with @QApplication::allWidgets()@ and scale their minimum sizes accordingly. Member Typedef Documentation typedef QFlags<LayoutFlag > QwtScaleWidget::LayoutFlags An ORed combination of LayoutFlag values. 2. I'm using qt designer and I want to make sure that my app looks the same on all systems and resolution scaling settings. By default, QGraphicsView provides a regular QWidget for the viewport widget. % widgets alignments getting collapsed. Otherwise you have to give more details about the structure of your GUI. (i dont want to use a layout b A transformation specifies how to translate, scale, shear, rotate or project the coordinate system, and is typically used when rendering graphics. How is it possible to maintain widgets aspect ratio in Qt and what about centering the widget? The parameters xScale , yScale , and zScale describe the scale factors to apply in horizontal, vertical, and depth directions. The scaling could be a one off application GraphicsView widget with a single PlotItem inside. This plotting library focuses on making good looking, publication quality 2D plots, graphs and charts, as well as offering high performance for realtime visualization. In Qt (and most User Interfaces), widget is the name given to a component of the UI that the user can interact with. Other widgets got special attention, such as the indent for a QLabel widgets. Basically, I'd like the entire window and it's contents to have the same appearance except for size: You could go through all widgets with @QApplication::allWidgets()@ and scale their minimum sizes accordingly. display resolution. According to the Qt documentation, the recommended (and seems to me the only) way to turn on auto resize for widgets, is to apply a layout on your window. 9. Question: Are there any system wide approaches to scale things like button widgets and such ? Should I be learning about style sheets? Problem I have a QWid The QGraphicsScale class provides a scale transformation. Definition at line 49 of file qwt_scale_widget. This will take care of drag A Widget which contains a scale. ps. I do see the necessity to have different parameters for very different screen sizes, but continuously mo I have a Qt application where I sometime need to rescale (as opposed to resizing using layouts) all the widgets for screens of different display resolution. Btw, this question was asked and solved before in the Qt Forum; however, without showing some implementation as in : here So my question resides in how can this be implemented: I'm wondering if there is a way to make Qt widgets within a QMainWindow widget stretch and scale as the size of the main window is stretched and shrunk. Provide a method to set a QIcon, and paint the QIcon with paint, choosing the appropriate parameters based on the current state of your widget. The size depends on DPI of monitor. 0. ui file it would be very tedious to manually change the dimensions fo reach widget. Qt library 5. The QPainter class performs low-level painting on widgets and other paint devices. The contents of an entire page in a smaller device could form a component element of a layout in a larger device. With default resolution and scaling (100%) ,widget alignments are good. Upon receiving this signal, the whole ui window should update all of its widgets to match this new scale % factor. I would like the QFormLayout to fill its parent widget and grow/shrink with it. Qt comes with a large range of standard widgets that users of modern applications have come to expect. How to scale an widget in specified in qt Asked 14 years, 10 months ago Modified 14 years, 10 months ago Viewed 3k times Hi, I have been developing an application while learning Qt. Thanks. Although he eventually decided to use Graphics View for this, the following code could be used as the starting point for a simple custom widget with a custom signal and a property for controlling the angle. normal its even shared but you can tell it to share so one widget get less than others etc Although QSplitter is a container widget, Qt Widgets Designer treats splitter objects as layouts that are applied to existing widgets. The scaling could be a one off application The QGraphicsItem class is the base class for all graphical items in a QGraphicsScene. And i used Grid Layout but then there will have Gap between all widgets,can i ask how do i remove the gap? I used right click the mainwidows and click l I want to resize my widgets and all the widgets in my widget automatically everytime without hardcoding it. If you set the factor to 0. PySide6 has a huge library of widgets, including buttons, checkboxes, list boxes, and sliders or dials. Definition at line 34 of file qwt_scale_widget. You can access this widget by calling viewport (), or you can replace it by calling setViewport (). To set the layout, Right click anywhere on your form, outside of the three separate layouts, and select Lay Out Horizontally. i used horizontalLayout E 1 Reply Last reply 29 Dec Hi, If you would like to be able to adjust both widgets you might want to consider using QSplitter. To place a group of widgets into a splitter, select them as described here then apply the splitter layout by using the appropriate toolbar button, keyboard shortcut, or Lay out context menu entry. The scaling could be a one off application Although QSplitter is a container widget, Qt Widgets Designer treats splitter objects as layouts that are applied to existing widgets. For non- QWidget based Qt applications, use QGuiApplication instead, as it does not depend on the QtWidgets library. Dec 3, 2010 · Can anybody suggest how I can design my forms or widgets so that when I show the widget in the center area, it will fit into the center area and all the items inside this will be scaled rationally. A simple Qt widget to view all images that QImage supports. normal its even shared but you can tell it to share so one widget get less than others etc Detailed Description A Widget which contains a scale. I am working in Windows 10. Since the border-image property provides an alternate background, it is not required to specify a background-image when border-image is specified. The view widget will have to act, to the outside, as if it was the viewed widget, other than the change of scale. What is even more interesting, is that there is only a very tiny, barely noticeable indication that something has changed. For any GUI application using Qt, there is precisely one QApplication object, no matter whether the application has 0, 1, 2 or more windows at any given time. xScale : qreal This property holds the horizontal scale factor. I have a main widget which has set fixed size. How is it possible to maintain widgets aspect ratio in Qt and what about centering the widget? Upon receiving this signal, the whole ui window should update all of its widgets to match this new scale % factor. See also xScale, yScale, and zScale. Manually render() the widget in a view widget's paintEvent. If you provide a negative value, the item will be mirrored horizontally around its origin The QWidget class is the base class of all user interface objects. I have developed a desktop application using Qt creator. normal its even shared but you can tell it to share so one widget get less than others etc. In a dialog, you might create two data entry widgets and a label for each, and set up the geometry layout so each label is just to the left of its data entry widget (its “buddy”), for example: QCustomPlot is a Qt C++ widget for plotting. You can also develop your own custom widgets and controls, and use them alongside standard widgets. This all works reasonably well, but the QFormLayout always stays at the size I set in Qt Designer. Make sure you test your UI for all realistic scale factors that will ever be used. is that possible. Is assumption correct that scale always equals to QScreen::logicalDotsPerInch ()/96 ? Well that is what I use, based on advice from the Qt folks, for widget scaling on Windows, but I've seen a case where a Linux VM running on a Mac with Retina display broke that assumption. Property Documentation alignment : Qt::Alignment This property holds the alignment of the scroll area's widget A valid alignment is a combination of the following flags: Qt::AlignLeft Qt::AlignHCenter Qt::AlignRight Qt::AlignTop Qt::AlignVCenter Qt::AlignBottom By default, the widget stays rooted to the top-left corner of the scroll area The Qt Widgets module extends Qt GUI with C++ widget functionality. 0, the item will be collapsed to a single point. If you use Qt Quick Layouts to position the content items, they will automatically resize the items pushed to them. The scaling could be a one off application I have a QWidget where I am drawing some lines and I would like to enable/implement a zooming function so as to better see the picture which I am drawing. The following methods are wrapped directly from PlotItem: addItem, removeItem, clear, setAxisItems, setXRange, setYRange, setRange, autoRange, setXLink, setYLink, viewRect, setMouseEnabled, enableAutoRange, disableAutoRange, setAspectLocked, setLimits, register, unregister Upon receiving this signal, the whole ui window should update all of its widgets to match this new scale % factor. It is even possible to provide custom styles and themes for widgets that can be used to change the appearance of standard widgets and appropriately written custom widgets. You'll have to forward all events to the rendered widget, after applying scaling to any coordinates, and while maintaining requisite invariants. A QTransform object can be built using the setMatrix (), scale (), rotate (), translate () and shear () functions. QGraphicsView takes ownership of the viewport widget. Aug 17, 2021 · It's tricky with the different resolutions/screen sizes on Windows. @SGaist Okay i will give more details about my UI Im making a code editor as the picture i sent above. mrjj Lifetime Qt Champion 29 Dec 2020, 02:33 Hi Did you try the layoutStretch It tells how to share the space. Has anyone played with this on other OSes and can share some experience ? The Qt class QToolButton is an example of such a widget. h QImageviewer. To provide a "skin" or background that scales along with the widget size, one must use border-image. Learn how to use them in your apps. It is important that your top level widget has a layout; otherwise, the widgets on your window will not resize when your window is resized. They can take on any value, including 0 (to collapse the item to a point) or negative value. Font size are getting increased. There are two files you can copy to your project: QImageViewer. cpp The widget supports: Loading the image from a file Loading the image from memory Scrollbars if the image is larger than the widget A slot to scale A slot to zoom in A slot to zoom out A slot to reset zoom It handles widget specific initialization, finalization. I wonder if there is a solution that would allow me to scale all children at once, instead of saving the scale to a constant and multiplying each int whenever I use setGeometry on a child. The parameters xScale, yScale, and zScale describe the scale factors to apply in horizontal, vertical, and depth directions. A background-image does not scale with the size of the widget. Now the PyQt5 has a huge library of widgets, including buttons, checkboxes, list boxes, and sliders or dials. How to fix this issue. I did a tree walk of every widget and adjusted the minimum size, the maximum size, the current size and the font size for each widget. comments sorted by Best Top New Controversial Q&A Add a Comment parkotron • The main layout is the top level widget's (in this case, the QWidget) layout. Now I t According to the Qt documentation, the recommended (and seems to me the only) way to turn on auto resize for widgets, is to apply a layout on your window. If I change scale to 125, 150. 12. The scale factor can be any real number; the default value is 1. Btw, this question was asked and solved before; however, without showing some implementation as in : here display resolution. I have all my widgets in a layout, set a to minimum size policy (all the widgets have the same minimum and maximum size). This Widget can be used to decorate composite widgets with a scale. And I want to connect that to the mouse wh I have a Qt application where I sometime need to rescale (as opposed to resizing using layouts) all the widgets for screens of different display resolution. Hi Did you try the layoutStretch It tells how to share the space. Shortcut Keys By the way, you do know about horizontal/vertical scale factors for widgets in layouts? Kind of sounds like you're trying to reinvent the wheel a bit. actually,i developed a application. Shortcut Keys I designed and implemented an application in Qt I wanted to fix the window size so I made the mistake of hard coding the places of the widgets on the window in all the different screens. When you set the stretching values, it will keep this layout even when you maximize. Btw, this question was asked and solved before; however, without showing some implementation as in : here I am new to QT. In Qt, like in most GUI frameworks, widget is the name given to a component of the UI that the user can interact with. so,for that i want to set auto resize the GUI based on Desktop screen size. lgmxk, uind, mmasi, syhk7, 9eocvr, jrysjt, 7ilsam, ckmpz, b7fjd, 1wli,