drag-and-drop

问题 This program is a drag and drop of an image in the grid lines This is the actual code: import java.awt.*; import java.awt.event.*; import java.awt.geom.*; import java.awt.image.BufferedImage; import javax.swing.*; public class DragAndDrop extends JFrame { WATCanvas canvas; public DragAndDrop() { super(); Container container = getContentPane(); setBackground(Color.WHITE); canvas = new WATCanvas(800,600,45,40); container.add(canvas); JPanel panel = new JPanel(); panel.setLayout(new GridLayout(1

问题 I am trying to make a html table row draggable. it works fine for present element. Here i have one button which has fields to add in a table. this new added field should be appended to html table as row with draggable class drag not working for the newly appended fields. HTML Table Design Draggable: <table id=drag_fields > foreach($crmfields as $row ) { echo '<tr class="drag_row">'; echo '<td id="'.$row['crm_field_id'] . '">' . $row['name'] . "</td>\n"; echo '</tr>'; } </table> Jquery

问题 I'm encountering this error: Unable to assign QList<QUrl> to QString when trying to directly assign the result of drop.urls (obtained from DropArea 's onDropped handler) to a Label's text property in Python. Based on this doc, I tried Qt.resolvedUrl (to convert the type to a string) as shown in the following code. However, it results in an empty text label. The urls I'm working with start with " file:/// ". What am I doing wrong? import QtQuick.Window 2.2 import QtQuick 2.2 import QtQuick

问题 Is it possible to drag and drop (files, text) to the taskbar icon of a WindowsForms application (C#)? I know there's no easy way to do it for the tray icon (it involves using Win32 API and hooks), but I was wondering if it's possible for the taskbar. 回答1: That's not possible, but the window manager automatically restores the minimized window if you hover over it long enough in the taskbar. Once restored, you can access all the drop targets your window implements. 回答2: It is possible, at least

问题 Is it possible to drag and drop (files, text) to the taskbar icon of a WindowsForms application (C#)? I know there's no easy way to do it for the tray icon (it involves using Win32 API and hooks), but I was wondering if it's possible for the taskbar. 回答1: That's not possible, but the window manager automatically restores the minimized window if you hover over it long enough in the taskbar. Once restored, you can access all the drop targets your window implements. 回答2: It is possible, at least

问题 Is it possible to drag and drop (files, text) to the taskbar icon of a WindowsForms application (C#)? I know there's no easy way to do it for the tray icon (it involves using Win32 API and hooks), but I was wondering if it's possible for the taskbar. 回答1: That's not possible, but the window manager automatically restores the minimized window if you hover over it long enough in the taskbar. Once restored, you can access all the drop targets your window implements. 回答2: It is possible, at least

问题 I am in dire need of help with a for loop. I'm trying to go through a for loop in Lua with the Corona SDK, but I am doing something wrong but I don't know what. See below for my code: function moveLift(event) for j=1,4,1 do if event.phase == "began" then markY = event.target.y elseif event.phase == "moved" then local y = (event.y - event.yStart) + markY event.target.y = y elseif event.phase == "ended" then if (hasCollided( event.target, hotSpots[j] )) then print("hasCollided with floor: ",

问题 Can anyone help me with drag and drop placeholder. I have 2 row's (left-right), each of them have 5 items. I want to show the placeholder ( border-style: dotted; ) with neat animation. Soo.. before i drop the item i want to show the border. Below you can find the example that im using from w3school https://www.w3schools.com/html/html5_draganddrop.asp How i want it to look! 回答1: If you use plain javascript : I created this solution on w3schools for you: https://www.w3schools.com/code/tryit.asp

问题 I'm experiencing some difficulties with catching application-scope events in Qt. My purpose is to catch every user action in some GUI application. Of course I've overrided QApplication::notify handler and processing different types of application-scope events there. Something like that: bool CoolApplication::notify(QObject *obj, QEvent *e) { switch (e->type()) { case QEvent::MouseButtonPress: case QEvent::MouseButtonRelease: // Handle mouse break; case QEvent::Wheel: // Handle wheel break;

问题 I have a question that is me to leave upset. I want to drag and drop an item in a listview and I can not do when I have a style applied to my item. Only I can do and is working perfectly when I have no style (MyButtonStyle) applied / or do not have this image in style. When I have style (MyButtonStyle), ItemDragStarting event is not called. Another situation: I have tapped associated event, and when I apply this style crashes. I do not understand what the problem is, can someone help me?