Drag and drop robot

Author: s | 2025-04-24

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Home Qt 5.11 Qt Widgets Drag and Drop Robot Example Demonstrates how to drag and drop items in a graphics view. The Drag and Drop Robot example shows how to implement Drag and Drop in a QGraphicsItem subclass, as well as how to animate items using Qt's Animation Framework. Graphics View provides the QGraphicsScene class for managing and interacting with a large number of custom-made 2D graphical items derived from the QGraphicsItem class, and a QGraphicsView widget for visualizing the items, with support for zooming and rotation. This example consists of a Robot class, a ColorItem class, and a main function: the Robot class describes a simple robot consisting of several RobotPart derived limbs, including RobotHead and RobotLimb, the ColorItem class provides a draggable colored ellipse, and the main() function provides the main application window. We will first review the Robot class to see how to assemble the different parts so that they can be individually rotated and animated using QPropertyAnimation, and we will then review the ColorItem class to demonstrate how to implement Drag and Drop between items. Finally we will review the main() function to see how we can put all the pieces together, to form the final application.Robot Class Definition The robot consists of three main classes: the RobotHead, the RobotTorso, and the RobotLimb, which is used for the upper and lower arms and legs. All parts derive from the RobotPart class, which in turn inherits QGraphicsObject. The Robot class itself has no visual appearance and serves only as a root node for the robot. Let's start with the RobotPart class declaration. class RobotPart : public QGraphicsObject{public: RobotPart(QGraphicsItem *parent = 0);protected: void dragEnterEvent(QGraphicsSceneDragDropEvent *event) override; void dragLeaveEvent(QGraphicsSceneDragDropEvent *event) override; void dropEvent(QGraphicsSceneDragDropEvent *event) override; QColor color; bool dragOver;}; This base class inherits QGraphicsObject. QGraphicsObject provides signals and slots through inheriting QObject, and it also declares QGraphicsItem's properties using Q_PROPERTY, which makes the properties accessible for QPropertyAnimation. RobotPart also implements the three most important event handlers for accepting drop events: dragEnterEvent(), dragLeaveEvent(), and dropEvent(). The color is stored as a member variable, along with the dragOver variable, which we will use later to indicate visually that the limb can accept colors that are is dragged onto it. RobotPart::RobotPart(QGraphicsItem *parent) : QGraphicsObject(parent), color(Qt::lightGray), dragOver(false){ setAcceptDrops(true);} RobotPart's constructor initializes the dragOver member and sets the color to Qt::lightGray. In the constructor body we enable support for accepting drop events by calling setAcceptDrops(true). The rest of this class's implementation is to support Drag and Drop. void RobotPart::dragEnterEvent(QGraphicsSceneDragDropEvent *event){ if (event->mimeData()->hasColor()) { event->setAccepted(true); dragOver = true; update(); } else { event->setAccepted(false); }} The dragEnterEvent() handler is called when a Drag and Drop element is dragged into the robot part's area. The handler implementation

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Skip to contentIn this Robot Framework Tutorial we will understand how to handle mouse actions in Robot Framework and the keywords available in Robot Selenium library to handle mouse actions like, mouse hover, mouse out, Drag And Drop, Right click etc.Some of the keywords that I will explain in this tutorial are:* Mouse Down – Simulates pressing the left mouse button on the element locator* Mouse Down On Image – Simulates a mouse down event on an image identified by locator* Mouse Down On Link – Simulates a mouse down event on a link identified by locator* Mouse Up – Simulates releasing the left mouse button on the element locator* Mouse Over – Simulates hovering the mouse over the element locator* Mouse Out – Simulates moving the mouse away from the element locator* Open Context Menu – Right Click Operations – Opens the context menu on the element identified by locator* Drag And Drop – Drags the element identified by locator into the target element* Drag And Drop By Offset – Drags the element identified with locator by xoffset/yoffset.

Drag and Drop Robot Example

The LEGO® MINDSTORMS® Education EV3 App is available for download and will continue to be available until July 31st, 2026.EV3 Classroom is the essential companion app for the LEGO® MINDSTORMS® Education EV3 Core Set (45544). Bringing best-in-class STEM and robotics learning to secondary school pupils, EV3 Classroom enables them to design and code programmable robots to solve complex, real-life problems.Intuitive interfaceEV3 Classroom features a coding language based on Scratch, the most widely used and popular graphical programming language in teaching. The intuitive drag-and-drop coding interface means that pupils can learn to program complex programs in no time.Engaging materialEV3 Classroom is supported by a comprehensive curriculum of teaching units, including Getting Started, Robot Trainer, Engineering Lab and Space Challenge. With around 25 hours of targeted learning, the EV3 Classroom curriculum teaches pupils the essential 21st century skills they need to compete in today’s technologically infused world, including STEM, Engineering, Computer Science and Robotics.Building confidenceLifelong learning starts with confidence, and we’re not just talking about pupils. For many teachers, confidence is an essential part of delivering engaging and inspiring EV3 Classroom lessons. We’ve therefore created a full range of STEM/programming teaching materials and online lesson plans that give teachers everything they need to nail their lessons.Competition readyWhen the world of competition comes calling, EV3 Classroom and the LEGO MINDSTORMS Education EV3 Core Set (45544) are all that pupils need to compete in the popular FIRST® LEGO League. For more information, visit www.firstlegoleague.org.Key Features:• Intuitive drag-and-drop interface for rapid programming• Bluetooth connectivity for. Drag and Drop Robot Download. Downloading Drag and Drop Robot

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Painter(&pixmap); painter.translate(15, 15); painter.setRenderHint(QPainter::Antialiasing); paint(&painter, 0, 0); painter.end(); pixmap.setMask(pixmap.createHeuristicMask()); drag->setPixmap(pixmap); drag->setHotSpot(QPoint(15, 20)); } Otherwise, and this is the most common outcome, a simple color is assigned to the drag object's mime data. We render this ColorItem into a new pixmap to give the user visual feedback that the color is being "dragged". drag->exec(); setCursor(Qt::OpenHandCursor);} Finally we execute the drag. QDrag::exec() will reenter the event loop, and only exit if the drag has either been dropped, or canceled. In any case we reset the cursor to Qt::OpenHandCursor.The main() Function Now that the Robot and ColorItem classes are complete, we can put all the pieces together inside the main() function. int main(int argc, char **argv){ QApplication app(argc, argv); We start off by constructing QApplication, and initializing the random number generator. This ensures that the color items have different colors every time the application starts. QGraphicsScene scene(-200, -200, 400, 400); for (int i = 0; i 10; ++i) { ColorItem *item = new ColorItem; item->setPos(::sin((i * 6.28) / 10.0) * 150, ::cos((i * 6.28) / 10.0) * 150); scene.addItem(item); } Robot *robot = new Robot; robot->setTransform(QTransform::fromScale(1.2, 1.2), true); robot->setPos(0, -20); scene.addItem(robot); We construct a fixed size scene, and create 10 ColorItem instances arranged in a circle. Each item is added to the scene. In the center of this circle we create one Robot instance. The robot is scaled and moved up a few units. It is then added to the scene. GraphicsView view(&scene); view.setRenderHint(QPainter::Antialiasing); view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate); view.setBackgroundBrush(QColor(230, 200, 167)); view.setWindowTitle("Drag and Drop Robot"); view.show(); return app.exec();} Finally we create a QGraphicsView window, and assign the scene to it. For increased visual quality, we enable antialiasing. We also choose to use bounding rectangle updates to simplify visual update handling. The view is given a fixed sand-colored background, and a window title. We then show the view. The animations start immediately after control enters the event loop. Files: graphicsview/dragdroprobot/coloritem.cpp graphicsview/dragdroprobot/coloritem.h graphicsview/dragdroprobot/dragdroprobot.pro graphicsview/dragdroprobot/main.cpp graphicsview/dragdroprobot/robot.cpp graphicsview/dragdroprobot/robot.h graphicsview/dragdroprobot/robot.qrc Images: graphicsview/dragdroprobot/images/head.png

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An Android device on your Windows PC and then you can install applications and use it - you see you're playing it on Android, but this runs not on a smartphone or tablet, it runs on a PC.If this doesn't work on your PC, or you cannot install, comment here and we will help you!Install & Play using BlueStacksInstall & Play using NoxPlayerStep By Step Guide To Play Mega Robot : Mega Robot Game using BlueStacksDownload and Install BlueStacks at: The installation procedure is quite simple. After successful installation, open the Bluestacks emulator. It may take some time to load the Bluestacks app initially. Once it is opened, you should be able to see the Home screen of Bluestacks.Open the APK/XAPK file: Double-click the APK/XAPK file to launch BlueStacks and install the application. If your APK/XAPK file doesn't automatically open BlueStacks, right-click on it and select Open with... Browse to the BlueStacks. You can also drag-and-drop the APK/XAPK file onto the BlueStacks home screenOnce installed, click "Mega Robot : Mega Robot Game" icon on the home screen to start playing, it'll work like a charm :D[Note 1] For better performance and compatibility, choose BlueStacks 5 Nougat 64-bit read more[Note 2] about Bluetooth: At the moment, support for Bluetooth is not available on BlueStacks. Hence, apps that require control of Bluetooth may not work on BlueStacks.How to play Mega Robot : Mega Robot Game on Windows PC using NoxPlayerDownload & Install NoxPlayer at: The installation is easy to carry out.Drag the APK/XAPK file to the NoxPlayer interface and drop it to installThe installation process will take place quickly. After successful installation, you can find "Mega Robot : Mega Robot Game" on the home screen of NoxPlayer, just click to open it.Discussion(*) is required

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Address to output video files. Select “settings”from meum,then click the “Add custom watermark”button,you can choose your own logo.Default choose is “None”,when you select ”Text “ option you can input your slogan or website address and you can change font and color. Also you can drag and drop the words to anywhere of the black screen (etc:top left corner or top right corner). When you select“Bitmap”option, you can select your picture and drag picture on the screen .Now you output file will include your Company's logo or website address. Change the Output Settings Select the target video profile in the "output format" dropdown list in the format area. If you choose " (*.MP4)" as the output format, YouTube Robot allows you to specify the video quality by clicking the "Settings" button. In general, you'd better keep the default value, that's enough to reserve wonderful video quality.And you can select output folder through folder “browse” button.And you may specify the output path (default is C:\youtuberobot\ ), that is where your converted files in. Click " Browse " to reset it as you wish. Start conversion Click on "Convert" button on the skin or right-click open the menu choose "convert selected" on the menu. All-In-One Robot downloads YouTube video and converts to AVI, WMV, MP4, 3GP, or MP3 required by your PSP, iPhone, iPod, Mobile, MP4 Player, Pocket PC, BlackBerry, Palm, or Zune. Key Features : Download collections of videos save youtube videos by category, complete playlists, users' channels and custom keywords. Support most popular video sites Such as YouTube.com, iFilm.com, Break.com, Putfile.com, angryalien.com, Vimeo.com and growing. YouTube to MP3 in batches Support grab a soundtrack from any online video and convert it to a necessary format. Built-in scheduler You may also schedule the download and conversion tasks to be executed automatically, even. Drag and Drop Robot Download. Downloading Drag and Drop Robot Drag and Drop Robot Example Demonstrates how to drag and drop items in a graphics view. The Drag and Drop Robot example shows how to implement Drag and Drop in a