Painter

The painter control provides a simple geometric drawing interface.

How to use

Create a painter control, the default painter control is transparent. You can add a background image or modify the background color according to your needs.

Code operating

Through the pointer of the painter control, you can call the interface to draw graphics. Almost all functions of this control require code implementation. The example is as follows.

static void onUI_init() {

    /**
     * Draw a rounded rectangle border
     */
    mPainter1Ptr->setLineWidth(4);
    mPainter1Ptr->setSourceColor(0x7092be);
    mPainter1Ptr->drawRect(10, 10, 430, 230, 5, 5);

    /**
     * Draw an arc
     */
    mPainter1Ptr->setLineWidth(3);
    mPainter1Ptr->setSourceColor(0xadc70c);
    mPainter1Ptr->drawArc(80, 80, 40, 40, -20, -120);

    /**
     * fill an arc
     */
    mPainter1Ptr->setLineWidth(3);
    mPainter1Ptr->setSourceColor(0x008ecc);
    mPainter1Ptr->fillArc(80, 80, 40, 40, -20, 120);


    /**
     * Draw triangle
     */
    mPainter1Ptr->setLineWidth(4);
    mPainter1Ptr->setSourceColor(0xff804f);
    mPainter1Ptr->drawTriangle(200, 40, 160, 90, 240, 90);//空心三角形
    mPainter1Ptr->fillTriangle(300, 40, 260, 90, 340, 90); //实心三角形

    /**
     * Draw straight line
     */
    MPPOINT points1[] = {
            {50 , 150},
            {150, 150},
            {70 , 200},
            {100, 120},
            {130, 200},
            {50 , 150}
    };
    /** Connect to a line according to the provided coordinates of multiple points */
    mPainter1Ptr->setLineWidth(2);
    mPainter1Ptr->setSourceColor(0x88cffa);
    mPainter1Ptr->drawLines(points1, TABLESIZE(points1));


    /**
     * Draw a curve
     */
    MPPOINT points2[] = {
            {250, 150},
            {350, 150},
            {270, 200},
            {300, 120},
            {330, 200},
            {250, 150}
    };
    mPainter1Ptr->setLineWidth(3);
    mPainter1Ptr->setSourceColor(0xe28ddf);
    /** Connect as a curve according to the provided multiple point coordinates */
    mPainter1Ptr->drawCurve(points2, TABLESIZE(points2));
}

Sample code

Demonstrates the use of the painter control

For the specific usage of the painter control, please refer to the PainterDemo project in Sample Code