最近想开发个草稿纸功能, 所以学习了下canvas实现简单的画板功能, 但是我们知道在PC端我们可以用MouseEvent来监听我们的鼠标点按相关操作, 移动端可以使用TouchEvent来监听我们手指触摸相关操作...PointerEvent、MouseEvent和TouchEvent相对应的事件 PointerEvent MouseEvent TouchEvent poninterdown mousedown touchstart...imageSmoothingEnabled = true let lineWidth = 3 let lineColor = '#fff' let painting = false 2) 使用MouseEvent...image.png 参考资料 https://developer.mozilla.org/zh-CN/docs/Web/API/MouseEvent https://developer.mozilla.org
https://blog.csdn.net/10km/article/details/53453611 SWT中与键盘鼠标等输入设备有关的事件(MouseEvent,KeyEvent,SelectionEvent...net.gdface.ui; import org.eclipse.swt.SWT; /** * @author guyadong * @see {@link org.eclipse.swt.events.MouseEvent
) { mouseEvent -> if (dragModeActiveProperty.value) { // 为所有的子节点禁用鼠标事件 mouseEvent.consume...() } } wrapGroup.addEventFilter( MouseEvent.MOUSE_PRESSED ) { mouseEvent...dragContext.mouseAnchorY = mouseEvent.y dragContext.initialTranslateX = node.translateX...) { mouseEvent -> if (dragModeActiveProperty.value) { // 通过增量计算鼠标光标动作来从初始位置移动node...node.translateX = (dragContext.initialTranslateX + mouseEvent.x
,pickup); myobj.addEventListener(MouseEvent.MOUSE_UP,place); function pickup(e:MouseEvent ):void {...//trace("鼠标按下"); e.target.startDrag(); } function place(e:MouseEvent):void { //trace("鼠标抬起");...function MouseDownHandler(e:MouseEvent) { stage.addEventListener(MouseEvent.MOUSE_UP, MouseUpHandler...R1.addEventListener(MouseEvent.MOUSE_UP,MouseUpHandler); R2.addEventListener(MouseEvent.MOUSE_DOWN,MouseDownHandler...); R2.addEventListener(MouseEvent.MOUSE_UP,MouseUpHandler); R3.addEventListener(MouseEvent.MOUSE_DOWN
= 0 && watched == widget) { QMouseEvent *mouseEvent = (QMouseEvent *)event; if (mouseEvent...= QEvent::MouseButtonPress) { //如果限定了只能鼠标左键拖动则判断当前是否是鼠标左键 if (leftButton && mouseEvent...->pos())) { lastPoint = mouseEvent->pos(); pressed = true;...} } else if (mouseEvent->type() == QEvent::MouseMove && pressed) { //计算坐标偏移值,调用move...函数移动过去 int offsetX = mouseEvent->pos().x() - lastPoint.x(); int offsetY = mouseEvent
一、环境介绍 操作系统介绍:win10 64位 QT版本: 5.12.6 二、现象 重载QGraphicsScene相关的鼠标事件,想得到当前鼠标的坐标点,如果直接从mouseEvent取坐标,返回的坐标点全是...*mouseEvent); } ...... void my_graphicsScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)...{ //鼠标左键按下 if(mouseEvent->button()==Qt::LeftButton) { //记录鼠标按下的点 start_point...=mouseEvent->pos(); //相对窗口坐标---->这里得到的坐标全是0 } } 三、解决办法 /* 工程: ECRS 日期: 2021-01-02 作者: DS小龙哥 环境: win10...) { QGraphicsScene::mousePressEvent(mouseEvent); qDebug()scenePos(); } 最终程序实现的效果是
e) {//移入组件时被触发 Start_end_Button.setIcon(StartIcon2); } public void mousePressed(MouseEvent...MachineIcon2); } public void mousePressed(MouseEvent e) { } public void mouseReleased(MouseEvent...void mouseReleased(MouseEvent e) { getBackLabel(); } public void mouseClicked(MouseEvent e...(AboutIcon2); } public void mousePressed(MouseEvent e) { } public void mouseReleased(MouseEvent...e) { } public void mousePressed(MouseEvent e) { } public void mouseReleased(MouseEvent
,stageMouseMoveHandler); this.stage.addEventListener(MouseEvent.MOUSE_UP,stageMouseUpHandler); }..._mcBtn.addEventListener(MouseEvent.MOUSE_OVER, mcBtnMouseOverHandler); this...._mcBtn.addEventListener(MouseEvent.MOUSE_OUT, mcBtnMouseOutHandler); this...._mcBtn.addEventListener(MouseEvent.MOUSE_DOWN,mcBtnMouseDownHandler); this....//切换光标为手形 private function mcBtnMouseOverHandler(e:MouseEvent) { Mouse.cursor=MouseCursor.HAND
mouseevent.h #ifndef MOUSEEVENT_H #define MOUSEEVENT_H #include #include #include... namespace Ui { class MouseEvent; } class MouseEvent : public QMainWindow { Q_OBJECT...*ui; QLabel *m_statusLabel; QLabel* m_posLabel; }; #endif // MOUSEEVENT_H mouseevent.cpp #include..."mouseevent.h" #include "ui_mouseevent.h" MouseEvent::MouseEvent(QWidget *parent) : QMainWindow...::~MouseEvent() { delete ui; } void MouseEvent::mousePressEvent(QMouseEvent *event) { QString
(e:MouseEvent):void { if (this...._btnConnect.removeEventListener(MouseEvent.CLICK,doConnect); this...._btnPlay.removeEventListener(MouseEvent.CLICK,doStopPlay); this...._btnPlay.removeEventListener(MouseEvent.CLICK,doPlay); this...._btnPlay.removeEventListener(MouseEvent.CLICK,doStopPlay); this.
mouseEvent) { } /** * 鼠标按下 */ public void mousePressed(MouseEvent mouseEvent) { this.oldMouseX...= this.mouseX = mouseEvent.getX(); this.oldMouseY = this.mouseY = mouseEvent.getY(); repaint();...(MouseEvent mouseEvent) { this.setCursor(new Cursor(Cursor.CROSSHAIR_CURSOR)); } /** * 鼠标退出棋盘...; this.oldMouseY = this.mouseY; this.mouseX = mouseEvent.getX(); this.mouseY = mouseEvent.getY(...); repaint(); } public void mouseMoved(MouseEvent mouseEvent) { } } } 发布者:全栈程序员栈长,转载请注明出处:https
private function handleCreationComplete():void { sampleButton.addEventListener(MouseEvent.CLICK..., createClickListener(1)); sampleButton.addEventListener(MouseEvent.CLICK, createClickListener...(clickLimit:int):Function { var clickCount:int = 0; return function(mouseEvent...:MouseEvent):void { clickCount++; trace("Click limit", clickLimit...(MouseEvent.CLICK, arguments.callee); } } }
,MouseDownHandler); ball.addEventListener(MouseEvent.MOUSE_OVER,function(){ Mouse.cursor = MouseCursor.HAND...;}); ball.addEventListener(MouseEvent.MOUSE_OUT,function(){ Mouse.cursor = MouseCursor.AUTO;});...< top) { ball.y=top+ball.radius; vy*=bounce; } } private function MouseDownHandler(e:MouseEvent...;}); ball.addEventListener(MouseEvent.MOUSE_OUT,function(){Mouse.cursor = MouseCursor.AUTO;});...):void { oldX = ball.x; oldY = ball.y; stage.addEventListener(MouseEvent.MOUSE_UP, MouseUpHandler
/share/share_dat.asp"+p; picser.send(); } protected function btnLeft_mouseOverHandler(event:MouseEvent...btnLeft2.visible=true; btnLeft1.visible=false; } protected function btnLeft_mouseOutHandler(event:MouseEvent...btnLeft1.visible=true; btnLeft2.visible=false; } protected function btnRight_mouseOverHandler(event:MouseEvent...Image = event.currentTarget as Image; set_pic(t); } protected function btnLeft1_clickHandler(event:MouseEvent...; } set_pic(picgroup.getElementAt(i) as Image); } protected function btnRight1_clickHandler(event:MouseEvent
, onclickHandler); //监听舞台的MouseEvent.MOUSE_DOWN、MouseEvent.MOUSE_UP事件 stage.addEventListener...(MouseEvent.MOUSE_DOWN, onMouseDownHandler); stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUpHandler...); } private function onMouseDownHandler(event:MouseEvent):void { graphics.moveTo(mouseX, mouseY...); stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMoveHandler); } private function...onMouseUpHandler(event:MouseEvent):void { stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMoveHandler
, MouseDownHandler); arrBalls[i].addEventListener(MouseEvent.MOUSE_UP, MouseUpHandler); arrBalls...[i].addEventListener(MouseEvent.MOUSE_OVER,MouseOverHandler); arrBalls[i].addEventListener(MouseEvent.MOUSE_OUT...,MouseOutHandler); addChild(arrBalls[i]); } } function MouseOverHandler(e:MouseEvent):void..., stageMouseMoveHandler); } //停止拖动 function MouseUpHandler(e:MouseEvent):void { _draggedBall...); } function stageMouseMoveHandler(e:MouseEvent):void { //trace(e.target); var _ball:Ball
,function(){Mouse.cursor = MouseCursor.AUTO}); ball.addEventListener(MouseEvent.MOUSE_OVER,function()...(MouseEvent.MOUSE_UP,MouseUpHandler); stage.addEventListener(MouseEvent.MOUSE_MOVE,function(){DrawLine...();}); ball_1.addEventListener(MouseEvent.MOUSE_OVER,MouseOverHandler); ball_1.addEventListener(MouseEvent.MOUSE_OUT...(MouseEvent.MOUSE_OUT,MouseOutHandler); function MouseOutHandler(e:MouseEvent){ Mouse.cursor = MouseCursor.AUTO...stage.addEventListener(MouseEvent.MOUSE_UP,MouseUpHandler); stage.addEventListener(MouseEvent.MOUSE_MOVE
接下来调用了triggerTouch方法: // ... function triggerTouch(touchType, mouseEvent) { const { altKey, ctrlKey..., metaKey, shiftKey } = mouseEvent; // bubbles:该事件是否冒泡 // cancelable:该事件能否被取消 const touchEvent...(mouseEvent); // 派发事件 eventTarget.dispatchEvent(touchEvent); } // ......{ type } = mouseEvent; if (isMouseup(type)) return createTouchList(); return updateTouchList(mouseEvent...(); touchList.push(new Touch(eventTarget, 1, mouseEvent)); return touchList; } // ...
根据当前的点来设置对应的鼠标指针状态 */ listen() { this.render.listen(this.area, 'mousemove', (e: MouseEvent)...; break; } } }); const mouseup = this.render.listen(document, 'mouseup', (e: MouseEvent.../** * 上边resize * @param e mousemove事件 * @param status resize前 元素的状态 */ resize2Up(e: MouseEvent...** * 右边resize * @param e mousemove事件 * @param status resize前 元素的状态 */ resize2Right(e: MouseEvent.../** * 下边resize * @param e mousemove事件 * @param status resize前 元素的状态 */ resize2Down(e: MouseEvent
.*; import flash.events.MouseEvent; public class EventTest extends Sprite { public function EventTest...,containerMouseDownHandler); _child.addEventListener(MouseEvent.MOUSE_DOWN,childMouseDownHandler...); _sub_child.addEventListener(MouseEvent.MOUSE_DOWN,subChildMouseDownHandler); }...private function subChildMouseDownHandler(e:MouseEvent):void{ trace("_sub_child.MOUSE_DOWN");..._2"); } private function childMouseDownHandler(e:MouseEvent):void{ trace("_child.MOUSE_DOWN
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