如何在DYGRAPS中更改鼠标事件和键盘输入.
我想将范围 Select 器或X轴移动更改为键盘和鼠标组合
范围 Select 器[拖动]-->;按住Shift键并拖动
X轴移动[Shift+拖动]-->;Ctrl+拖动
BR
如何在DYGRAPS中更改鼠标事件和键盘输入.
我想将范围 Select 器或X轴移动更改为键盘和鼠标组合
范围 Select 器[拖动]-->;按住Shift键并拖动
X轴移动[Shift+拖动]-->;Ctrl+拖动
BR
要在Dygraph中实现自定义鼠标和键盘交互以进行范围 Select 和X轴移动,您可以侦听鼠标和键盘事件,然后相应地处理它们以更改行为.
// Get a reference to your Dygraph instance
const dygraph = new Dygraph(...);
document.addEventListener('mousedown', handleMouseDown);
document.addEventListener('mouseup', handleMouseUp);
document.addEventListener('mousemove', handleMouseMove);
document.addEventListener('keydown', handleKeyDown);
document.addEventListener('keyup', handleKeyUp);
let isMouseDown = false;
let isShiftKeyDown = false;
let isCtrlKeyDown = false;
let startX = 0;
// Function to handle mouse down event
function handleMouseDown(event) {
if (event.shiftKey) {
isMouseDown = true;
startX = event.clientX;
}
}
// Function to handle mouse up event
function handleMouseUp(event) {
isMouseDown = false;
}
// Function to handle mouse move event
function handleMouseMove(event) {
if (isMouseDown && isShiftKeyDown) {
// Handle range selection
const endX = event.clientX;
const selectedRange = [startX, endX];
// Do something with the selected range
}
}
// Function to handle key down event
function handleKeyDown(event) {
if (event.key === 'Shift') {
isShiftKeyDown = true;
} else if (event.key === 'Control') {
isCtrlKeyDown = true;
}
}
// Function to handle key up event
function handleKeyUp(event) {
if (event.key === 'Shift') {
isShiftKeyDown = false;
} else if (event.key === 'Control') {
isCtrlKeyDown = false;
}
}
您可以修改handleMouseMove
功能,以便在按下Ctrl
键时处理X-axis
移动,类似于使用Shift
键处理范围 Select 的方式.此外,您可以调整逻辑以满足您的特定要求.