用鼠标画线的代码，见证一下aardio的强大

rmajly

点击鼠标 画折线图。点击的过程中，移动鼠标指针时还能显示线条。

[AAuto] 纯文本查看 复制代码

import win.ui;
/*DSG{{*/
winform = ..win.form(text="绘图演示";right=599;bottom=399;bgcolor=16777215)
winform.add(
plus={cls="plus";left=8;top=9;right=590;bottom=393;bgcolor=15793151;notify=1;z=1}
)
/*}}*/

import gdip.pen; 
winform.plus.points ={}
winform.plus.onDrawContent = function(graphics,rc){
    var pen = winform.plus.pen;
    if(pen){
        
        if( #winform.plus.points >=2 ) {
            var pt,pt2;
            for(i=1;#winform.plus.points-1;1){
                var pt,pt2 = winform.plus.points[i],winform.plus.points[i+1] 
                 graphics.drawLine(pen,pt.x,pt.y,pt2.x,pt2.y)
            }
        }
        
        var pt = winform.plus.points[#winform.plus.points]
        if( pt && winform.plus.x2 && winform.plus.y2 ){
            graphics.drawLine(pen,pt.x,pt.y,winform.plus.x2,winform.plus.y2 )
        }
    }
}

winform.plus.onMouseClick = function(wParam,lParam){
    if( !winform.plus.pen )
        winform.plus.pen = gdip.pen(0xFFFFFF00,2);
        
    var x,y  = win.getMessagePos(lParam);
    table.push(winform.plus.points,{x=x;y=y} );
    winform.plus.redrawTransparent()
}

winform.plus.onMouseMove = function(wParam,lParam){
    winform.plus.x2,winform.plus.y2 = win.getMessagePos(lParam); 
    winform.plus.redrawTransparent() 
}

winform.show()
win.loopMessage();

注意：

把plus控件的浮动透明属性设为false，利用plus控件提供的背景优化，可以避免绘图的时候闪烁

转自https://bbs.aardio.com/forum.php ... =%E9%BC%A0%E6%A0%87

Squall8965

谢谢分享。

善小而为_

[AAuto] 纯文本查看 复制代码

//加点注释
import gdip.pen;
winform.plus.pen = gdip.pen(0xFFFF0000,2); //画笔
var pen = winform.plus.pen; //画笔
winform.plus.points ={}; //点击坐标历史
winform.plus.onDrawContent = function(graphics,rc){

        //历史坐标重画
        if( #winform.plus.points >=2 ) {
            var pt,pt2;
            for(i=1;#winform.plus.points-1;1){
                var pt,pt2 = winform.plus.points,winform.plus.points[i+1]
                 graphics.drawLine(pen,pt.x,pt.y,pt2.x,pt2.y)
            }
        }
       
        //当前鼠标移动坐标绘图
        var pt = winform.plus.points[#winform.plus.points]
        if( pt && winform.plus.x2 && winform.plus.y2 ){
            graphics.drawLine(pen,pt.x,pt.y,winform.plus.x2,winform.plus.y2 )
        }

}

//鼠标点击保存坐标
winform.plus.onMouseClick = function(wParam,lParam){
    var x,y  = win.getMessagePos(lParam);
    table.push(winform.plus.points,{x=x;y=y} );
    winform.plus.redrawTransparent()
}

//当前鼠标移动坐标
winform.plus.onMouseMove = function(wParam,lParam){
    winform.plus.x2,winform.plus.y2 = win.getMessagePos(lParam);
    winform.plus.redrawTransparent()
}